0.27.0

go get: upgraded github.com/lucasb-eyer/go-colorful v1.0.3 => v1.2.0
go get: upgraded github.com/mattn/go-runewidth v0.0.9 => v0.0.12
go get: upgraded github.com/mattn/go-shellwords v1.0.10 => v1.0.11
go get: added github.com/rivo/uniseg v0.2.0
go get: upgraded github.com/saracen/walker v0.1.1 => v0.1.2
go get: upgraded golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9 => v0.0.0-20210220032951-036812b2e83c
go get: upgraded golang.org/x/sys v0.0.0-20201119102817-f84b799fce68 => v0.0.0-20210403161142-5e06dd20ab57
go get: upgraded golang.org/x/text v0.3.3 => v0.3.6

.github/FUNDING.yml

@@ -0,0 +1 @@
+custom: ["https://paypal.me/junegunn", "https://www.buymeacoffee.com/junegunn"]

.github/ISSUE_TEMPLATE.md

@@ -1,30 +1,22 @@
+<!-- ISSUES NOT FOLLOWING THIS TEMPLATE WILL BE CLOSED AND DELETED -->
+
 <!-- Check all that apply [x] -->
-- Category
-    - [ ] fzf binary
-    - [ ] fzf-tmux script
-    - [ ] Key bindings
-    - [ ] Completion
-    - [ ] Vim
-    - [ ] Neovim
-    - [ ] Etc.
+
+- [ ] I have read through the manual page (`man fzf`)
+- [ ] I have the latest version of fzf
+- [ ] I have searched through the existing issues
+
+## Info
+
 - OS
     - [ ] Linux
     - [ ] Mac OS X
     - [ ] Windows
-    - [ ] Windows Subsystem for Linux
     - [ ] Etc.
 - Shell
     - [ ] bash
     - [ ] zsh
     - [ ] fish
-
-<!--
-### Before submitting
-
-- Make sure that you have the latest version of fzf
-- If you use tmux, make sure $TERM is set to screen or screen-256color
-- For more Vim stuff, check out https://github.com/junegunn/fzf.vim
-
-Describe your problem or suggestion from here ...
--->
+    
+## Problem / Steps to reproduce
 

.github/workflows/codeql-analysis.yml

@@ -0,0 +1,36 @@
+# https://docs.github.com/en/free-pro-team@latest/github/finding-security-vulnerabilities-and-errors-in-your-code/configuring-code-scanning
+name: CodeQL
+
+on:
+  push:
+    branches: [ master, devel ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  analyze:
+    name: Analyze
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: false
+      matrix:
+        language: ['go']
+
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    # Initializes the CodeQL tools for scanning.
+    - name: Initialize CodeQL
+      uses: github/codeql-action/init@v1
+      with:
+        languages: ${{ matrix.language }}
+
+    - name: Autobuild
+      uses: github/codeql-action/autobuild@v1
+
+    - name: Perform CodeQL Analysis
+      uses: github/codeql-action/analyze@v1

.github/workflows/linux.yml

@@ -0,0 +1,44 @@
+---
+name: Test fzf on Linux
+
+on:
+  push:
+    branches: [ master, devel ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        go: [1.14, 1.16]
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go }}
+
+    - name: Setup Ruby
+      uses: ruby/setup-ruby@v1.62.0
+      with:
+        ruby-version: 3.0.0
+
+    - name: Install packages
+      run: sudo apt-get install --yes zsh fish tmux
+
+    - name: Install Ruby gems
+      run: sudo gem install --no-document minitest:5.14.2 rubocop:1.0.0 rubocop-minitest:0.10.1 rubocop-performance:1.8.1
+
+    - name: Rubocop
+      run: rubocop --require rubocop-minitest --require rubocop-performance
+
+    - name: Unit test
+      run: make test
+
+    - name: Integration test
+      run: make install && ./install --all && LC_ALL=C tmux new-session -d && ruby test/test_go.rb --verbose

.github/workflows/macos.yml

@@ -0,0 +1,44 @@
+---
+name: Test fzf on macOS
+
+on:
+  push:
+    branches: [ master, devel ]
+  pull_request:
+    branches: [ master ]
+
+jobs:
+  build:
+    runs-on: macos-latest
+    strategy:
+      matrix:
+        go: [1.14, 1.16]
+    steps:
+    - uses: actions/checkout@v2
+      with:
+        fetch-depth: 0
+
+    - name: Set up Go
+      uses: actions/setup-go@v2
+      with:
+        go-version: ${{ matrix.go }}
+
+    - name: Setup Ruby
+      uses: ruby/setup-ruby@v1.62.0
+      with:
+        ruby-version: 3.0.0
+
+    - name: Install packages
+      run: HOMEBREW_NO_INSTALL_CLEANUP=1 brew install fish zsh tmux
+
+    - name: Install Ruby gems
+      run: gem install --no-document minitest:5.14.2 rubocop:1.0.0 rubocop-minitest:0.10.1 rubocop-performance:1.8.1
+
+    - name: Rubocop
+      run: rubocop --require rubocop-minitest --require rubocop-performance
+
+    - name: Unit test
+      run: make test
+
+    - name: Integration test
+      run: make install && ./install --all && LC_ALL=C tmux new-session -d && ruby test/test_go.rb --verbose

.gitignore

@@ -1,4 +1,6 @@
 bin/fzf
+bin/fzf.exe
+dist
 target
 pkg
 Gemfile.lock
@@ -6,3 +8,7 @@ Gemfile.lock
 doc/tags
 vendor
 gopath
+*.zwc
+fzf
+tmp
+*.patch

.goreleaser.yml

@@ -0,0 +1,128 @@
+---
+project_name: fzf
+
+before:
+  hooks:
+    - go mod download
+
+builds:
+  - id: fzf-macos
+    binary: fzf
+    goos:
+      - darwin
+    goarch:
+      - amd64
+    ldflags:
+      - "-s -w -X main.version={{ .Version }} -X main.revision={{ .ShortCommit }}"
+
+  - id: fzf-macos-arm
+    binary: fzf
+    goos:
+      - darwin
+    goarch:
+      - arm64
+    ldflags:
+      - "-s -w -X main.version={{ .Version }} -X main.revision={{ .ShortCommit }}"
+
+  - id: fzf
+    goos:
+      - linux
+      - windows
+      - freebsd
+      - openbsd
+    goarch:
+      - amd64
+      - arm
+      - arm64
+    goarm:
+      - 5
+      - 6
+      - 7
+    ldflags:
+      - "-s -w -X main.version={{ .Version }} -X main.revision={{ .ShortCommit }}"
+    ignore:
+      - goos: freebsd
+        goarch: arm
+      - goos: openbsd
+        goarch: arm
+      - goos: freebsd
+        goarch: arm64
+      - goos: openbsd
+        goarch: arm64
+
+archives:
+  - name_template: "{{ .ProjectName }}-{{ .Version }}-{{ .Os }}_{{ .Arch }}{{ if .Arm }}v{{ .Arm }}{{ end }}"
+    builds:
+      - fzf
+    format: tar.gz
+    format_overrides:
+      - goos: windows
+        format: zip
+    files:
+      - non-existent*
+
+signs:
+  - id: fzf-macos-sign
+    ids: [fzf-macos]
+    artifacts: all
+    cmd: sh
+    args:
+      - "-c"
+      - |-
+        cat > /tmp/fzf-gon-amd64.hcl << EOF
+        source = ["./dist/fzf-macos_darwin_amd64/fzf"]
+        bundle_id = "kr.junegunn.fzf"
+        apple_id {
+          username = "junegunn.c@gmail.com"
+          password = "@env:AC_PASSWORD"
+        }
+        sign {
+          application_identity = "Developer ID Application: Junegunn Choi (Y254DRW44Z)"
+        }
+        zip {
+          output_path = "./dist/fzf-{{ .Version }}-darwin_amd64.zip"
+        }
+        EOF
+        gon /tmp/fzf-gon-amd64.hcl
+
+  - id: fzf-macos-arm-sign
+    ids: [fzf-macos-arm]
+    artifacts: all
+    cmd: sh
+    args:
+      - "-c"
+      - |-
+        cat > /tmp/fzf-gon-arm64.hcl << EOF
+        source = ["./dist/fzf-macos-arm_darwin_arm64/fzf"]
+        bundle_id = "kr.junegunn.fzf"
+        apple_id {
+          username = "junegunn.c@gmail.com"
+          password = "@env:AC_PASSWORD"
+        }
+        sign {
+          application_identity = "Developer ID Application: Junegunn Choi (Y254DRW44Z)"
+        }
+        zip {
+          output_path = "./dist/fzf-{{ .Version }}-darwin_arm64.zip"
+        }
+        EOF
+        gon /tmp/fzf-gon-arm64.hcl
+
+release:
+  github:
+    owner: junegunn
+    name: fzf
+  prerelease: auto
+  name_template: '{{ .Tag }}'
+  extra_files:
+    - glob: ./dist/fzf-*darwin*.zip
+
+snapshot:
+  name_template: "{{ .Tag }}-devel"
+
+changelog:
+  sort: asc
+  filters:
+    exclude:
+      - README
+      - test

.rubocop.yml

@@ -0,0 +1,28 @@
+Layout/LineLength:
+  Enabled: false
+Metrics:
+  Enabled: false
+Lint/ShadowingOuterLocalVariable:
+  Enabled: false
+Style/MethodCallWithArgsParentheses:
+  Enabled: true
+  IgnoredMethods:
+    - assert
+    - exit
+    - paste
+    - puts
+    - raise
+    - refute
+    - require
+    - send_keys
+  IgnoredPatterns:
+    - ^assert_
+    - ^refute_
+Style/NumericPredicate:
+  Enabled: false
+Style/StringConcatenation:
+  Enabled: false
+Style/OptionalBooleanParameter:
+  Enabled: false
+Style/WordArray:
+  MinSize: 1

.travis.yml

@@ -1,20 +0,0 @@
-language: ruby
-dist: trusty
-sudo: required
-matrix:
-  include:
-    - env: TAGS=
-      rvm: 2.3.3
-#   - env: TAGS=tcell
-#     rvm: 2.3.3
-
-install:
-- sudo add-apt-repository -y ppa:pi-rho/dev
-- sudo apt-add-repository -y ppa:fish-shell/release-2
-- sudo apt-get update
-- sudo apt-get install -y tmux zsh fish
-
-script: |
-  make test install &&
-  ./install --all &&
-  tmux new "ruby test/test_go.rb > out && touch ok" && cat out && [ -e ok ]

BUILD.md

@@ -6,12 +6,10 @@ Build instructions
 
 ### Prerequisites
 
-- `go` executable in $PATH
+- Go 1.13 or above
 
 ### Using Makefile
 
-Makefile will set up and use its own `$GOPATH` under the project root.
-
 ```sh
 # Build fzf binary for your platform in target
 make
@@ -19,21 +17,19 @@ make
 # Build fzf binary and copy it to bin directory
 make install
 
-# Build 32-bit and 64-bit executables and tarballs in target
+# Build fzf binaries and archives for all platforms using goreleaser
+make build
+
+# Publish GitHub release
 make release
-
-# Make release archives for all supported platforms in target
-make release-all
 ```
 
-### Using `go get`
-
-Alternatively, you can build fzf directly with `go get` command without
-manually cloning the repository.
-
-```sh
-go get -u github.com/junegunn/fzf
-```
+> :warning: Makefile uses git commands to determine the version and the
+> revision information for `fzf --version`. So if you're building fzf from an
+> environment where its git information is not available, you have to manually
+> set `$FZF_VERSION` and `$FZF_REVISION`.
+>
+> e.g. `FZF_VERSION=0.24.0 FZF_REVISION=tarball make`
 
 Third-party libraries used
 --------------------------

CHANGELOG.md

@@ -1,6 +1,484 @@
 CHANGELOG
 =========
 
+0.27.0
+------
+- More border options for `--preview-window`
+  ```sh
+  fzf --preview 'cat {}' --preview-window border-left
+  fzf --preview 'cat {}' --preview-window border-left --border horizontal
+  fzf --preview 'cat {}' --preview-window top:border-bottom
+  fzf --preview 'cat {}' --preview-window top:border-horizontal
+  ```
+- Automatically set `/dev/tty` as STDIN on execute action
+  ```sh
+  # Redirect /dev/tty to suppress "Vim: Warning: Input is not from a terminal"
+  # ls | fzf --bind "enter:execute(vim {} < /dev/tty)"
+
+  # "< /dev/tty" part is no longer needed
+  ls | fzf --bind "enter:execute(vim {})"
+  ```
+- Bug fixes and improvements
+- Signed and notarized macOS binaries
+  (Huge thanks to [BACKERS.md](https://github.com/junegunn/junegunn/blob/main/BACKERS.md)!)
+
+0.26.0
+------
+- Added support for fixed header in preview window
+  ```sh
+  # Display top 3 lines as the fixed header
+  fzf --preview 'bat --style=header,grid --color=always {}' --preview-window '~3'
+  ```
+- More advanced preview offset expression to better support the fixed header
+  ```sh
+  # Preview with bat, matching line in the middle of the window below
+  # the fixed header of the top 3 lines
+  #
+  #   ~3    Top 3 lines as the fixed header
+  #   +{2}  Base scroll offset extracted from the second field
+  #   +3    Extra offset to compensate for the 3-line header
+  #   /2    Put in the middle of the preview area
+  #
+  git grep --line-number '' |
+    fzf --delimiter : \
+        --preview 'bat --style=full --color=always --highlight-line {2} {1}' \
+        --preview-window '~3:+{2}+3/2'
+  ```
+- Added `select` and `deselect` action for unconditionally selecting or
+  deselecting a single item in `--multi` mode. Complements `toggle` action.
+- Sigificant performance improvement in ANSI code processing
+- Bug fixes and improvements
+- Built with Go 1.16
+
+0.25.1
+------
+- Added `close` action
+    - Close preview window if open, abort fzf otherwise
+- Bug fixes and improvements
+
+0.25.0
+------
+- Text attributes set in `--color` are not reset when fzf sees another
+  `--color` option for the same element. This allows you to put custom text
+  attributes in your `$FZF_DEFAULT_OPTS` and still have those attributes
+  even when you override the colors.
+
+  ```sh
+  # Default colors and attributes
+  fzf
+
+  # Apply custom text attributes
+  export FZF_DEFAULT_OPTS='--color fg+:italic,hl:-1:underline,hl+:-1:reverse:underline'
+
+  fzf
+
+  # Different colors but you still have the attributes
+  fzf --color hl:176,hl+:177
+
+  # Write "regular" if you want to clear the attributes
+  fzf --color hl:176:regular,hl+:177:regular
+  ```
+- Renamed `--phony` to `--disabled`
+- You can dynamically enable and disable the search functionality using the
+  new `enable-search`, `disable-search`, and `toggle-search` actions
+- You can assign a different color to the query string for when search is disabled
+  ```sh
+  fzf --color query:#ffffff,disabled:#999999 --bind space:toggle-search
+  ```
+- Added `last` action to move the cursor to the last match
+    - The opposite action `top` is renamed to `first`, but `top` is still
+      recognized as a synonym for backward compatibility
+- Added `preview-top` and `preview-bottom` actions
+- Extended support for alt key chords: alt with any case-sensitive single character
+  ```sh
+  fzf --bind alt-,:first,alt-.:last
+  ```
+
+0.24.4
+------
+- Added `--preview-window` option `follow`
+  ```sh
+  # Preview window will automatically scroll to the bottom
+  fzf --preview-window follow --preview 'for i in $(seq 100000); do
+    echo "$i"
+    sleep 0.01
+    (( i % 300 == 0 )) && printf "\033[2J"
+  done'
+  ```
+- Added `change-prompt` action
+  ```sh
+  fzf --prompt 'foo> ' --bind $'a:change-prompt:\x1b[31mbar> '
+  ```
+- Bug fixes and improvements
+
+0.24.3
+------
+- Added `--padding` option
+  ```sh
+  fzf --margin 5% --padding 5% --border --preview 'cat {}' \
+      --color bg:#222222,preview-bg:#333333
+  ```
+
+0.24.2
+------
+- Bug fixes and improvements
+
+0.24.1
+------
+- Fixed broken `--color=[bw|no]` option
+
+0.24.0
+------
+- Real-time rendering of preview window
+  ```sh
+  # fzf can render preview window before the command completes
+  fzf --preview 'sleep 1; for i in $(seq 100); do echo $i; sleep 0.01; done'
+
+  # Preview window can process ANSI escape sequence (CSI 2 J) for clearing the display
+  fzf --preview 'for i in $(seq 100000); do
+    (( i % 200 == 0 )) && printf "\033[2J"
+    echo "$i"
+    sleep 0.01
+  done'
+  ```
+- Updated `--color` option to support text styles
+  - `regular` / `bold` / `dim` / `underline` / `italic` / `reverse` / `blink`
+    ```sh
+    # * Set -1 to keep the original color
+    # * Multiple style attributes can be combined
+    # * Italic style may not be supported by some terminals
+    rg --line-number --no-heading --color=always "" |
+      fzf --ansi --prompt "Rg: " \
+          --color fg+:italic,hl:underline:-1,hl+:italic:underline:reverse:-1 \
+          --color pointer:reverse,prompt:reverse,input:159 \
+          --pointer '  '
+    ```
+- More `--border` options
+  - `vertical`, `top`, `bottom`, `left`, `right`
+  - Updated Vim plugin to use these new `--border` options
+    ```vim
+    " Floating popup window in the center of the screen
+    let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+
+    " Popup with 100% width
+    let g:fzf_layout = { 'window': { 'width': 1.0, 'height': 0.5, 'border': 'horizontal' } }
+
+    " Popup with 100% height
+    let g:fzf_layout = { 'window': { 'width': 0.5, 'height': 1.0, 'border': 'vertical' } }
+
+    " Similar to 'down' layout, but it uses a popup window and doesn't affect the window layout
+    let g:fzf_layout = { 'window': { 'width': 1.0, 'height': 0.5, 'yoffset': 1.0, 'border': 'top' } }
+
+    " Opens on the right;
+    "   'highlight' option is still supported but it will only take the foreground color of the group
+    let g:fzf_layout = { 'window': { 'width': 0.5, 'height': 1.0, 'xoffset': 1.0, 'border': 'left', 'highlight': 'Comment' } }
+    ```
+- To indicate if `--multi` mode is enabled, fzf will print the number of
+  selected items even when no item is selected
+  ```sh
+  seq 100 | fzf
+    # 100/100
+  seq 100 | fzf --multi
+    # 100/100 (0)
+  seq 100 | fzf --multi 5
+    # 100/100 (0/5)
+  ```
+- Since 0.24.0, release binaries will be uploaded to https://github.com/junegunn/fzf/releases
+
+0.23.1
+------
+- Added `--preview-window` options for disabling flags
+    - `nocycle`
+    - `nohidden`
+    - `nowrap`
+    - `default`
+- Built with Go 1.14.9 due to performance regression
+    - https://github.com/golang/go/issues/40727
+
+0.23.0
+------
+- Support preview scroll offset relative to window height
+  ```sh
+  git grep --line-number '' |
+    fzf --delimiter : \
+        --preview 'bat --style=numbers --color=always --highlight-line {2} {1}' \
+        --preview-window +{2}-/2
+  ```
+- Added `--preview-window` option for sharp edges (`--preview-window sharp`)
+- Added `--preview-window` option for cyclic scrolling (`--preview-window cycle`)
+- Reduced vertical padding around the preview window when `--preview-window
+  noborder` is used
+- Added actions for preview window
+    - `preview-half-page-up`
+    - `preview-half-page-down`
+- Vim
+    - Popup width and height can be given in absolute integer values
+    - Added `fzf#exec()` function for getting the path of fzf executable
+        - It also downloads the latest binary if it's not available by running
+          `./install --bin`
+- Built with Go 1.15.2
+    - We no longer provide 32-bit binaries
+
+0.22.0
+------
+- Added more options for `--bind`
+    - `backward-eof` event
+      ```sh
+      # Aborts when you delete backward when the query prompt is already empty
+      fzf --bind backward-eof:abort
+      ```
+    - `refresh-preview` action
+      ```sh
+      # Rerun preview command when you hit '?'
+      fzf --preview 'echo $RANDOM' --bind '?:refresh-preview'
+      ```
+    - `preview` action
+      ```sh
+      # Default preview command with an extra preview binding
+      fzf --preview 'file {}' --bind '?:preview:cat {}'
+
+      # A preview binding with no default preview command
+      # (Preview window is initially empty)
+      fzf --bind '?:preview:cat {}'
+
+      # Preview window hidden by default, it appears when you first hit '?'
+      fzf --bind '?:preview:cat {}' --preview-window hidden
+      ```
+- Added preview window option for setting the initial scroll offset
+  ```sh
+  # Initial scroll offset is set to the line number of each line of
+  # git grep output *minus* 5 lines
+  git grep --line-number '' |
+    fzf --delimiter : --preview 'nl {1}' --preview-window +{2}-5
+  ```
+- Added support for ANSI colors in `--prompt` string
+- Smart match of accented characters
+    - An unaccented character in the query string will match both accented and
+      unaccented characters, while an accented character will only match
+      accented characters. This is similar to how "smart-case" match works.
+- Vim plugin
+    - `tmux` layout option for using fzf-tmux
+      ```vim
+      let g:fzf_layout = { 'tmux': '-p90%,60%' }
+      ```
+
+0.21.1
+------
+- Shell extension
+    - CTRL-R will remove duplicate commands
+- fzf-tmux
+    - Supports tmux popup window (require tmux 3.2 or above)
+        - ```sh
+          # 50% width and height
+          fzf-tmux -p
+
+          # 80% width and height
+          fzf-tmux -p 80%
+
+          # 80% width and 40% height
+          fzf-tmux -p 80%,40%
+          fzf-tmux -w 80% -h 40%
+
+          # Window position
+          fzf-tmux -w 80% -h 40% -x 0 -y 0
+          fzf-tmux -w 80% -h 40% -y 1000
+
+          # Write ordinary fzf options after --
+          fzf-tmux -p -- --reverse --info=inline --margin 2,4 --border
+          ```
+        - On macOS, you can build the latest tmux from the source with
+          `brew install tmux --HEAD`
+- Bug fixes
+    - Fixed Windows file traversal not to include directories
+    - Fixed ANSI colors with `--keep-right`
+    - Fixed _fzf_complete for zsh
+- Built with Go 1.14.1
+
+0.21.0
+------
+- `--height` option is now available on Windows as well (@kelleyma49)
+- Added `--pointer` and `--marker` options
+- Added `--keep-right` option that keeps the right end of the line visible
+  when it's too long
+- Style changes
+    - `--border` will now print border with rounded corners around the
+      finder instead of printing horizontal lines above and below it.
+      The previous style is available via `--border=horizontal`
+    - Unicode spinner
+- More keys and actions for `--bind`
+- Added PowerShell script for downloading Windows binary
+- Vim plugin: Built-in floating windows support
+  ```vim
+  let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+  ```
+- bash: Various improvements in key bindings (CTRL-T, CTRL-R, ALT-C)
+    - CTRL-R will start with the current command-line as the initial query
+    - CTRL-R properly supports multi-line commands
+- Fuzzy completion API changed
+  ```sh
+  # Previous: fzf arguments given as a single string argument
+  # - This style is still supported, but it's deprecated
+  _fzf_complete "--multi --reverse --prompt=\"doge> \"" "$@" < <(
+    echo foo
+  )
+
+  # New API: multiple fzf arguments before "--"
+  # - Easier to write multiple options
+  _fzf_complete --multi --reverse --prompt="doge> " -- "$@" < <(
+    echo foo
+  )
+  ```
+- Bug fixes and improvements
+
+0.20.0
+------
+- Customizable preview window color (`preview-fg` and `preview-bg` for `--color`)
+  ```sh
+  fzf --preview 'cat {}' \
+      --color 'fg:#bbccdd,fg+:#ddeeff,bg:#334455,preview-bg:#223344,border:#778899' \
+      --border --height 20 --layout reverse --info inline
+  ```
+- Removed the immediate flicking of the screen on `reload` action.
+  ```sh
+  : | fzf --bind 'change:reload:seq {q}' --phony
+  ```
+- Added `clear-query` and `clear-selection` actions for `--bind`
+- It is now possible to split a composite bind action over multiple `--bind`
+  expressions by prefixing the later ones with `+`.
+  ```sh
+  fzf --bind 'ctrl-a:up+up'
+
+  # Can be now written as
+  fzf --bind 'ctrl-a:up' --bind 'ctrl-a:+up'
+
+  # This is useful when you need to write special execute/reload form (i.e. `execute:...`)
+  # to avoid parse errors and add more actions to the same key
+  fzf --multi --bind 'ctrl-l:select-all+execute:less {+f}' --bind 'ctrl-l:+deselect-all'
+  ```
+- Fixed parse error of `--bind` expression where concatenated execute/reload
+  action contains `+` character.
+  ```sh
+  fzf --multi --bind 'ctrl-l:select-all+execute(less {+f})+deselect-all'
+  ```
+- Fixed bugs of reload action
+    - Not triggered when there's no match even when the command doesn't have
+      any placeholder expressions
+    - Screen not properly cleared when `--header-lines` not filled on reload
+
+0.19.0
+------
+
+- Added `--phony` option which completely disables search functionality.
+  Useful when you want to use fzf only as a selector interface. See below.
+- Added "reload" action for dynamically updating the input list without
+  restarting fzf. See https://github.com/junegunn/fzf/issues/1750 to learn
+  more about it.
+  ```sh
+  # Using fzf as the selector interface for ripgrep
+  RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+  INITIAL_QUERY="foo"
+  FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY' || true" \
+    fzf --bind "change:reload:$RG_PREFIX {q} || true" \
+        --ansi --phony --query "$INITIAL_QUERY"
+  ```
+- `--multi` now takes an optional integer argument which indicates the maximum
+  number of items that can be selected
+  ```sh
+  seq 100 | fzf --multi 3 --reverse --height 50%
+  ```
+- If a placeholder expression for `--preview` and `execute` action (and the
+  new `reload` action) contains `f` flag, it is replaced to the
+  path of a temporary file that holds the evaluated list. This is useful
+  when you multi-select a large number of items and the length of the
+  evaluated string may exceed [`ARG_MAX`][argmax].
+  ```sh
+  # Press CTRL-A to select 100K items and see the sum of all the numbers
+  seq 100000 | fzf --multi --bind ctrl-a:select-all \
+                   --preview "awk '{sum+=\$1} END {print sum}' {+f}"
+  ```
+- `deselect-all` no longer deselects unmatched items. It is now consistent
+  with `select-all` and `toggle-all` in that it only affects matched items.
+- Due to the limitation of bash, fuzzy completion is enabled by default for
+  a fixed set of commands. A helper function for easily setting up fuzzy
+  completion for any command is now provided.
+  ```sh
+  # usage: _fzf_setup_completion path|dir COMMANDS...
+  _fzf_setup_completion path git kubectl
+  ```
+- Info line style can be changed by `--info=STYLE`
+    - `--info=default`
+    - `--info=inline` (same as old `--inline-info`)
+    - `--info=hidden`
+- Preview window border can be disabled by adding `noborder` to
+  `--preview-window`.
+- When you transform the input with `--with-nth`, the trailing white spaces
+  are removed.
+- `ctrl-\`, `ctrl-]`, `ctrl-^`, and `ctrl-/` can now be used with `--bind`
+- See https://github.com/junegunn/fzf/milestone/15?closed=1 for more details
+
+[argmax]: https://unix.stackexchange.com/questions/120642/what-defines-the-maximum-size-for-a-command-single-argument
+
+0.18.0
+------
+
+- Added placeholder expression for zero-based item index: `{n}` and `{+n}`
+    - `fzf --preview 'echo {n}: {}'`
+- Added color option for the gutter: `--color gutter:-1`
+- Added `--no-unicode` option for drawing borders in non-Unicode, ASCII
+  characters
+- `FZF_PREVIEW_LINES` and `FZF_PREVIEW_COLUMNS` are exported to preview process
+    - fzf still overrides `LINES` and `COLUMNS` as before, but they may be
+      reset by the default shell.
+- Bug fixes and improvements
+    - See https://github.com/junegunn/fzf/milestone/14?closed=1
+- Built with Go 1.12.1
+
+0.17.5
+------
+
+- Bug fixes and improvements
+    - See https://github.com/junegunn/fzf/milestone/13?closed=1
+- Search query longer than the screen width is allowed (up to 300 chars)
+- Built with Go 1.11.1
+
+0.17.4
+------
+
+- Added `--layout` option with a new layout called `reverse-list`.
+    - `--layout=reverse` is a synonym for `--reverse`
+    - `--layout=default` is a synonym for `--no-reverse`
+- Preview window will be updated even when there is no match for the query
+  if any of the placeholder expressions (e.g. `{q}`, `{+}`) evaluates to
+  a non-empty string.
+- More keys for binding: `shift-{up,down}`, `alt-{up,down,left,right}`
+- fzf can now start even when `/dev/tty` is not available by making an
+  educated guess.
+- Updated the default command for Windows.
+- Fixes and improvements on bash/zsh completion
+- install and uninstall scripts now supports generating files under
+  `XDG_CONFIG_HOME` on `--xdg` flag.
+
+See https://github.com/junegunn/fzf/milestone/12?closed=1 for the full list of
+changes.
+
+0.17.3
+------
+- `$LINES` and `$COLUMNS` are exported to preview command so that the command
+  knows the exact size of the preview window.
+- Better error messages when the default command or `$FZF_DEFAULT_COMMAND`
+  fails.
+- Reverted #1061 to avoid having duplicate entries in the list when find
+  command detected a file system loop (#1120). The default command now
+  requires that find supports `-fstype` option.
+- fzf now distinguishes mouse left click and right click (#1130)
+    - Right click is now bound to `toggle` action by default
+    - `--bind` understands `left-click` and `right-click`
+- Added `replace-query` action (#1137)
+    - Replaces query string with the current selection
+- Added `accept-non-empty` action (#1162)
+    - Same as accept, except that it prevents fzf from exiting without any
+      selection
+
 0.17.1
 ------
 

Dockerfile

@@ -0,0 +1,11 @@
+FROM archlinux/base:latest
+RUN pacman -Sy && pacman --noconfirm -S awk git tmux zsh fish ruby procps go make gcc
+RUN gem install --no-document -v 5.14.2 minitest
+RUN echo '. /usr/share/bash-completion/completions/git' >> ~/.bashrc
+RUN echo '. ~/.bashrc' >> ~/.bash_profile
+
+# Do not set default PS1
+RUN rm -f /etc/bash.bashrc
+COPY . /fzf
+RUN cd /fzf && make install && ./install --all
+CMD tmux new 'set -o pipefail; ruby /fzf/test/test_go.rb | tee out && touch ok' && cat out && [ -e ok ]

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2016 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

Makefile

@@ -1,41 +1,39 @@
-ifndef GOOS
-UNAME_S := $(shell uname -s)
-ifeq ($(UNAME_S),Darwin)
-	GOOS := darwin
-else ifeq ($(UNAME_S),Linux)
-	GOOS := linux
+SHELL          := bash
+GO             ?= go
+GOOS           ?= $(word 1, $(subst /, " ", $(word 4, $(shell go version))))
+
+MAKEFILE       := $(realpath $(lastword $(MAKEFILE_LIST)))
+ROOT_DIR       := $(shell dirname $(MAKEFILE))
+SOURCES        := $(wildcard *.go src/*.go src/*/*.go) $(MAKEFILE)
+
+ifdef FZF_VERSION
+VERSION        := $(FZF_VERSION)
 else
-$(error "$$GOOS is not defined.")
+VERSION        := $(shell git describe --abbrev=0 2> /dev/null)
 endif
+ifeq ($(VERSION),)
+$(error Not on git repository; cannot determine $$FZF_VERSION)
 endif
+VERSION_TRIM   := $(shell sed "s/-.*//" <<< $(VERSION))
+VERSION_REGEX  := $(subst .,\.,$(VERSION_TRIM))
 
-MAKEFILE    := $(realpath $(lastword $(MAKEFILE_LIST)))
-ROOT_DIR    := $(shell dirname $(MAKEFILE))
-GOPATH      := $(ROOT_DIR)/gopath
-SRC_LINK    := $(GOPATH)/src/github.com/junegunn/fzf/src
-VENDOR_LINK := $(GOPATH)/src/github.com/junegunn/fzf/vendor
-export GOPATH
+ifdef FZF_REVISION
+REVISION       := $(FZF_REVISION)
+else
+REVISION       := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES) 2> /dev/null)
+endif
+ifeq ($(REVISION),)
+$(error Not on git repository; cannot determine $$FZF_REVISION)
+endif
+BUILD_FLAGS    := -a -ldflags "-s -w -X main.version=$(VERSION) -X main.revision=$(REVISION)" -tags "$(TAGS)"
 
-GLIDE_YAML  := glide.yaml
-GLIDE_LOCK  := glide.lock
-SOURCES     := $(wildcard *.go src/*.go src/*/*.go) $(SRC_LINK) $(VENDOR_LINK) $(GLIDE_LOCK) $(MAKEFILE)
-
-REVISION    := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES))
-BUILD_FLAGS := -a -ldflags "-X main.revision=$(REVISION) -w -extldflags=$(LDFLAGS)" -tags "$(TAGS)"
-
-BINARY32    := fzf-$(GOOS)_386
-BINARY64    := fzf-$(GOOS)_amd64
-BINARYARM5  := fzf-$(GOOS)_arm5
-BINARYARM6  := fzf-$(GOOS)_arm6
-BINARYARM7  := fzf-$(GOOS)_arm7
-BINARYARM8  := fzf-$(GOOS)_arm8
-VERSION     := $(shell awk -F= '/version =/ {print $$2}' src/constants.go | tr -d "\" ")
-RELEASE32   := fzf-$(VERSION)-$(GOOS)_386
-RELEASE64   := fzf-$(VERSION)-$(GOOS)_amd64
-RELEASEARM5 := fzf-$(VERSION)-$(GOOS)_arm5
-RELEASEARM6 := fzf-$(VERSION)-$(GOOS)_arm6
-RELEASEARM7 := fzf-$(VERSION)-$(GOOS)_arm7
-RELEASEARM8 := fzf-$(VERSION)-$(GOOS)_arm8
+BINARY32       := fzf-$(GOOS)_386
+BINARY64       := fzf-$(GOOS)_amd64
+BINARYARM5     := fzf-$(GOOS)_arm5
+BINARYARM6     := fzf-$(GOOS)_arm6
+BINARYARM7     := fzf-$(GOOS)_arm7
+BINARYARM8     := fzf-$(GOOS)_arm8
+BINARYPPC64LE  := fzf-$(GOOS)_ppc64le
 
 # https://en.wikipedia.org/wiki/Uname
 UNAME_M := $(shell uname -m)
@@ -53,86 +51,109 @@ else ifeq ($(UNAME_M),armv6l)
 	BINARY := $(BINARYARM6)
 else ifeq ($(UNAME_M),armv7l)
 	BINARY := $(BINARYARM7)
+else ifeq ($(UNAME_M),armv8l)
+	BINARY := $(BINARYARM8)
+else ifeq ($(UNAME_M),arm64)
+	BINARY := $(BINARYARM8)
+else ifeq ($(UNAME_M),aarch64)
+	BINARY := $(BINARYARM8)
+else ifeq ($(UNAME_M),ppc64le)
+	BINARY := $(BINARYPPC64LE)
 else
-$(error "Build on $(UNAME_M) is not supported, yet.")
+$(error Build on $(UNAME_M) is not supported, yet.)
 endif
 
 all: target/$(BINARY)
 
-target:
-	mkdir -p $@
-
-ifeq ($(GOOS),windows)
-release: target/$(BINARY32) target/$(BINARY64)
-	cd target && cp -f $(BINARY32) fzf.exe && zip $(RELEASE32).zip fzf.exe
-	cd target && cp -f $(BINARY64) fzf.exe && zip $(RELEASE64).zip fzf.exe
-	cd target && rm -f fzf.exe
-else ifeq ($(GOOS),linux)
-release: target/$(BINARY32) target/$(BINARY64) target/$(BINARYARM5) target/$(BINARYARM6) target/$(BINARYARM7) target/$(BINARYARM8)
-	cd target && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
-	cd target && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
-	cd target && cp -f $(BINARYARM5) fzf && tar -czf $(RELEASEARM5).tgz fzf
-	cd target && cp -f $(BINARYARM6) fzf && tar -czf $(RELEASEARM6).tgz fzf
-	cd target && cp -f $(BINARYARM7) fzf && tar -czf $(RELEASEARM7).tgz fzf
-	cd target && cp -f $(BINARYARM8) fzf && tar -czf $(RELEASEARM8).tgz fzf
-	cd target && rm -f fzf
-else
-release: target/$(BINARY32) target/$(BINARY64)
-	cd target && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
-	cd target && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
-	cd target && rm -f fzf
-endif
-
-release-all: clean test
-	GOOS=darwin  make release
-	GOOS=linux   make release
-	GOOS=freebsd make release
-	GOOS=openbsd make release
-	GOOS=windows make release
-
-$(SRC_LINK):
-	mkdir -p $(shell dirname $(SRC_LINK))
-	ln -sf $(ROOT_DIR)/src $(SRC_LINK)
-
-$(VENDOR_LINK):
-	mkdir -p $(shell dirname $(VENDOR_LINK))
-	ln -sf $(ROOT_DIR)/vendor $(VENDOR_LINK)
-
-vendor: $(GLIDE_YAML)
-	go get -u github.com/Masterminds/glide && $(GOPATH)/bin/glide install && touch $@
-
-test: $(SOURCES) vendor
-	SHELL=/bin/sh GOOS= go test -v -tags "$(TAGS)" \
+test: $(SOURCES)
+	[ -z "$$(gofmt -s -d src)" ] || (gofmt -s -d src; exit 1)
+	SHELL=/bin/sh GOOS= $(GO) test -v -tags "$(TAGS)" \
 				github.com/junegunn/fzf/src \
 				github.com/junegunn/fzf/src/algo \
 				github.com/junegunn/fzf/src/tui \
 				github.com/junegunn/fzf/src/util
 
+bench:
+	cd src && SHELL=/bin/sh GOOS= $(GO) test -v -tags "$(TAGS)" -run=Bench -bench=. -benchmem
+
 install: bin/fzf
 
+build:
+	goreleaser --rm-dist --snapshot
+
+release:
+ifndef GITHUB_TOKEN
+	$(error GITHUB_TOKEN is not defined)
+endif
+
+	# Check if we are on master branch
+ifneq ($(shell git symbolic-ref --short HEAD),master)
+	$(error Not on master branch)
+endif
+
+	# Check if version numbers are properly updated
+	grep -q ^$(VERSION_REGEX)$$ CHANGELOG.md
+	grep -qF '"fzf $(VERSION_TRIM)"' man/man1/fzf.1
+	grep -qF '"fzf $(VERSION_TRIM)"' man/man1/fzf-tmux.1
+	grep -qF $(VERSION) install
+	grep -qF $(VERSION) install.ps1
+
+	# Make release note out of CHANGELOG.md
+	sed -n '/^$(VERSION_REGEX)$$/,/^[0-9]/p' CHANGELOG.md | tail -r | \
+		sed '1,/^ *$$/d' | tail -r | sed 1,2d | tee tmp/release-note
+
+	# Push to temp branch first so that install scripts always works on master branch
+	git checkout -B temp master
+	git push origin temp --follow-tags --force
+
+	# Make a GitHub release
+	goreleaser --rm-dist --release-notes tmp/release-note
+
+	# Push to master
+	git checkout master
+	git push origin master
+
+	# Delete temp branch
+	git push origin --delete temp
+
 clean:
-	rm -rf target
+	$(RM) -r dist target
 
-target/$(BINARY32): $(SOURCES) vendor
-	GOARCH=386 go build $(BUILD_FLAGS) -o $@
+target/$(BINARY32): $(SOURCES)
+	GOARCH=386 $(GO) build $(BUILD_FLAGS) -o $@
 
-target/$(BINARY64): $(SOURCES) vendor
-	GOARCH=amd64 go build $(BUILD_FLAGS) -o $@
+target/$(BINARY64): $(SOURCES)
+	GOARCH=amd64 $(GO) build $(BUILD_FLAGS) -o $@
 
 # https://github.com/golang/go/wiki/GoArm
-target/$(BINARYARM5): $(SOURCES) vendor
-	GOARCH=arm GOARM=5 go build $(BUILD_FLAGS) -o $@
+target/$(BINARYARM5): $(SOURCES)
+	GOARCH=arm GOARM=5 $(GO) build $(BUILD_FLAGS) -o $@
 
-target/$(BINARYARM6): $(SOURCES) vendor
-	GOARCH=arm GOARM=6 go build $(BUILD_FLAGS) -o $@
+target/$(BINARYARM6): $(SOURCES)
+	GOARCH=arm GOARM=6 $(GO) build $(BUILD_FLAGS) -o $@
 
-target/$(BINARYARM7): $(SOURCES) vendor
-	GOARCH=arm GOARM=7 go build $(BUILD_FLAGS) -o $@
+target/$(BINARYARM7): $(SOURCES)
+	GOARCH=arm GOARM=7 $(GO) build $(BUILD_FLAGS) -o $@
 
-target/$(BINARYARM8): $(SOURCES) vendor
-	GOARCH=arm64 go build $(BUILD_FLAGS) -o $@
+target/$(BINARYARM8): $(SOURCES)
+	GOARCH=arm64 $(GO) build $(BUILD_FLAGS) -o $@
+
+target/$(BINARYPPC64LE): $(SOURCES)
+	GOARCH=ppc64le $(GO) build $(BUILD_FLAGS) -o $@
 
 bin/fzf: target/$(BINARY) | bin
 	cp -f target/$(BINARY) bin/fzf
 
-.PHONY: all release release-all test install clean
+docker:
+	docker build -t fzf-arch .
+	docker run -it fzf-arch tmux
+
+docker-test:
+	docker build -t fzf-arch .
+	docker run -it fzf-arch
+
+update:
+	$(GO) get -u
+	$(GO) mod tidy
+
+.PHONY: all build release test bench install clean docker docker-test update

README-VIM.md

@@ -1,16 +1,77 @@
 FZF Vim integration
 ===================
 
-This repository only enables basic integration with Vim. If you're looking for
-more, check out [fzf.vim](https://github.com/junegunn/fzf.vim) project.
+Installation
+------------
 
-(Note: To use fzf in GVim, an external terminal emulator is required.)
+Once you have fzf installed, you can enable it inside Vim simply by adding the
+directory to `&runtimepath` in your Vim configuration file. The path may
+differ depending on the package manager.
+
+```vim
+" If installed using Homebrew
+set rtp+=/usr/local/opt/fzf
+
+" If installed using git
+set rtp+=~/.fzf
+```
+
+If you use [vim-plug](https://github.com/junegunn/vim-plug), the same can be
+written as:
+
+```vim
+" If installed using Homebrew
+Plug '/usr/local/opt/fzf'
+
+" If installed using git
+Plug '~/.fzf'
+```
+
+But if you want the latest Vim plugin file from GitHub rather than the one
+included in the package, write:
+
+```vim
+Plug 'junegunn/fzf'
+```
+
+The Vim plugin will pick up fzf binary available on the system. If fzf is not
+found on `$PATH`, it will ask you if it should download the latest binary for
+you.
+
+To make sure that you have the latest version of the binary, set up
+post-update hook like so:
+
+```vim
+Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
+```
+
+Summary
+-------
+
+The Vim plugin of fzf provides two core functions, and `:FZF` command which is
+the basic file selector command built on top of them.
+
+1. **`fzf#run([spec dict])`**
+    - Starts fzf inside Vim with the given spec
+    - `:call fzf#run({'source': 'ls'})`
+2. **`fzf#wrap([spec dict]) -> (dict)`**
+    - Takes a spec for `fzf#run` and returns an extended version of it with
+      additional options for addressing global preferences (`g:fzf_xxx`)
+        - `:echo fzf#wrap({'source': 'ls'})`
+    - We usually *wrap* a spec with `fzf#wrap` before passing it to `fzf#run`
+        - `:call fzf#run(fzf#wrap({'source': 'ls'}))`
+3. **`:FZF [fzf_options string] [path string]`**
+    - Basic fuzzy file selector
+    - A reference implementation for those who don't want to write VimScript
+      to implement custom commands
+    - If you're looking for more such commands, check out [fzf.vim](https://github.com/junegunn/fzf.vim) project.
+
+The most important of all is `fzf#run`, but it would be easier to understand
+the whole if we start off with `:FZF` command.
 
 `:FZF[!]`
 ---------
 
-If you have set up fzf for Vim, `:FZF` command will be added.
-
 ```vim
 " Look for files under current directory
 :FZF
@@ -18,8 +79,8 @@ If you have set up fzf for Vim, `:FZF` command will be added.
 " Look for files under your home directory
 :FZF ~
 
-" With options
-:FZF --no-sort --reverse --inline-info /tmp
+" With fzf command-line options
+:FZF --reverse --info=inline /tmp
 
 " Bang version starts fzf in fullscreen mode
 :FZF!
@@ -42,9 +103,6 @@ Note that the environment variables `FZF_DEFAULT_COMMAND` and
     - Customizes fzf colors to match the current color scheme
 - `g:fzf_history_dir`
     - Enables history feature
-- `g:fzf_launcher`
-    - (Only in GVim) Terminal emulator to open fzf with
-    - `g:Fzf_launcher` for function reference
 
 #### Examples
 
@@ -69,15 +127,19 @@ let g:fzf_action = {
   \ 'ctrl-v': 'vsplit' }
 
 " Default fzf layout
-" - down / up / left / right
-let g:fzf_layout = { 'down': '~40%' }
+" - Popup window
+let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 
-" You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
+" - down / up / left / right
+let g:fzf_layout = { 'down': '40%' }
+
+" - Window using a Vim command
 let g:fzf_layout = { 'window': 'enew' }
 let g:fzf_layout = { 'window': '-tabnew' }
-let g:fzf_layout = { 'window': '10split enew' }
+let g:fzf_layout = { 'window': '10new' }
 
 " Customize fzf colors to match your color scheme
+" - fzf#wrap translates this to a set of `--color` options
 let g:fzf_colors =
 \ { 'fg':      ['fg', 'Normal'],
   \ 'bg':      ['bg', 'Normal'],
@@ -93,82 +155,298 @@ let g:fzf_colors =
   \ 'spinner': ['fg', 'Label'],
   \ 'header':  ['fg', 'Comment'] }
 
-" Enable per-command history.
-" CTRL-N and CTRL-P will be automatically bound to next-history and
-" previous-history instead of down and up. If you don't like the change,
-" explicitly bind the keys to down and up in your $FZF_DEFAULT_OPTS.
+" Enable per-command history
+" - History files will be stored in the specified directory
+" - When set, CTRL-N and CTRL-P will be bound to 'next-history' and
+"   'previous-history' instead of 'down' and 'up'.
 let g:fzf_history_dir = '~/.local/share/fzf-history'
 ```
 
+##### Explanation of `g:fzf_colors`
+
+`g:fzf_colors` is a dictionary mapping fzf elements to a color specification
+list:
+
+    element: [ component, group1 [, group2, ...] ]
+
+- `element` is an fzf element to apply a color to:
+
+  | Element                     | Description                                           |
+  | ---                         | ---                                                   |
+  | `fg`  / `bg`  / `hl`        | Item (foreground / background / highlight)            |
+  | `fg+` / `bg+` / `hl+`       | Current item (foreground / background / highlight)    |
+  | `preview-fg` / `preview-bg` | Preview window text and background                    |
+  | `hl`  / `hl+`               | Highlighted substrings (normal / current)             |
+  | `gutter`                    | Background of the gutter on the left                  |
+  | `pointer`                   | Pointer to the current line (`>`)                     |
+  | `marker`                    | Multi-select marker (`>`)                             |
+  | `border`                    | Border around the window (`--border` and `--preview`) |
+  | `header`                    | Header (`--header` or `--header-lines`)               |
+  | `info`                      | Info line (match counters)                            |
+  | `spinner`                   | Streaming input indicator                             |
+  | `query`                     | Query string                                          |
+  | `disabled`                  | Query string when search is disabled                  |
+  | `prompt`                    | Prompt before query (`> `)                            |
+  | `pointer`                   | Pointer to the current line (`>`)                     |
+
+- `component` specifies the component (`fg` / `bg`) from which to extract the
+  color when considering each of the following highlight groups
+
+- `group1 [, group2, ...]` is a list of highlight groups that are searched (in
+  order) for a matching color definition
+
+For example, consider the following specification:
+
+```vim
+  'prompt':  ['fg', 'Conditional', 'Comment'],
+```
+
+This means we color the **prompt**
+- using the `fg` attribute of the `Conditional` if it exists,
+- otherwise use the `fg` attribute of the `Comment` highlight group if it exists,
+- otherwise fall back to the default color settings for the **prompt**.
+
+You can examine the color option generated according the setting by printing
+the result of `fzf#wrap()` function like so:
+
+```vim
+:echo fzf#wrap()
+```
+
 `fzf#run`
 ---------
 
-For more advanced uses, you can use `fzf#run([options])` function with the
-following options.
+`fzf#run()` function is the core of Vim integration. It takes a single
+dictionary argument, *a spec*, and starts fzf process accordingly. At the very
+least, specify `sink` option to tell what it should do with the selected
+entry.
 
-| Option name                | Type          | Description                                                      |
-| -------------------------- | ------------- | ---------------------------------------------------------------- |
-| `source`                   | string        | External command to generate input to fzf (e.g. `find .`)        |
-| `source`                   | list          | Vim list as input to fzf                                         |
-| `sink`                     | string        | Vim command to handle the selected item (e.g. `e`, `tabe`)       |
-| `sink`                     | funcref       | Reference to function to process each selected item              |
-| `sink*`                    | funcref       | Similar to `sink`, but takes the list of output lines at once    |
-| `options`                  | string/list   | Options to fzf                                                   |
-| `dir`                      | string        | Working directory                                                |
-| `up`/`down`/`left`/`right` | number/string | Use tmux pane with the given size (e.g. `20`, `50%`)             |
-| `window` (Vim 8 / Neovim)  | string        | Command to open fzf window (e.g. `vertical aboveleft 30new`)     |
-| `launcher`                 | string        | External terminal emulator to start fzf with (GVim only)         |
-| `launcher`                 | funcref       | Function for generating `launcher` string (GVim only)            |
+```vim
+call fzf#run({'sink': 'e'})
+```
+
+We haven't specified the `source`, so this is equivalent to starting fzf on
+command line without standard input pipe; fzf will use find command (or
+`$FZF_DEFAULT_COMMAND` if defined) to list the files under the current
+directory. When you select one, it will open it with the sink, `:e` command.
+If you want to open it in a new tab, you can pass `:tabedit` command instead
+as the sink.
+
+```vim
+call fzf#run({'sink': 'tabedit'})
+```
+
+Instead of using the default find command, you can use any shell command as
+the source. The following example will list the files managed by git. It's
+equivalent to running `git ls-files | fzf` on shell.
+
+```vim
+call fzf#run({'source': 'git ls-files', 'sink': 'e'})
+```
+
+fzf options can be specified as `options` entry in spec dictionary.
+
+```vim
+call fzf#run({'sink': 'tabedit', 'options': '--multi --reverse'})
+```
+
+You can also pass a layout option if you don't want fzf window to take up the
+entire screen.
+
+```vim
+" up / down / left / right / window are allowed
+call fzf#run({'source': 'git ls-files', 'sink': 'e', 'left': '40%'})
+call fzf#run({'source': 'git ls-files', 'sink': 'e', 'window': '30vnew'})
+```
+
+`source` doesn't have to be an external shell command, you can pass a Vim
+array as the source. In the next example, we pass the names of color
+schemes as the source to implement a color scheme selector.
+
+```vim
+call fzf#run({'source': map(split(globpath(&rtp, 'colors/*.vim')),
+            \               'fnamemodify(v:val, ":t:r")'),
+            \ 'sink': 'colo', 'left': '25%'})
+```
+
+The following table summarizes the available options.
+
+| Option name                | Type          | Description                                                           |
+| -------------------------- | ------------- | ----------------------------------------------------------------      |
+| `source`                   | string        | External command to generate input to fzf (e.g. `find .`)             |
+| `source`                   | list          | Vim list as input to fzf                                              |
+| `sink`                     | string        | Vim command to handle the selected item (e.g. `e`, `tabe`)            |
+| `sink`                     | funcref       | Reference to function to process each selected item                   |
+| `sink*`                    | funcref       | Similar to `sink`, but takes the list of output lines at once         |
+| `options`                  | string/list   | Options to fzf                                                        |
+| `dir`                      | string        | Working directory                                                     |
+| `up`/`down`/`left`/`right` | number/string | (Layout) Window position and size (e.g. `20`, `50%`)                  |
+| `tmux`                     | string        | (Layout) fzf-tmux options (e.g. `-p90%,60%`)                          |
+| `window` (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g. `vertical aboveleft 30new`) |
+| `window` (Vim 8 / Neovim)  | dict          | (Layout) Popup window settings (e.g. `{'width': 0.9, 'height': 0.6}`) |
 
 `options` entry can be either a string or a list. For simple cases, string
-should suffice, but prefer to use list type if you're concerned about escaping
-issues on different platforms.
+should suffice, but prefer to use list type to avoid escaping issues.
 
 ```vim
 call fzf#run({'options': '--reverse --prompt "C:\\Program Files\\"'})
 call fzf#run({'options': ['--reverse', '--prompt', 'C:\Program Files\']})
 ```
 
+When `window` entry is a dictionary, fzf will start in a popup window. The
+following options are allowed:
+
+- Required:
+    - `width` [float range [0 ~ 1]] or [integer range [8 ~ ]]
+    - `height` [float range [0 ~ 1]] or [integer range [4 ~ ]]
+- Optional:
+    - `yoffset` [float default 0.5 range [0 ~ 1]]
+    - `xoffset` [float default 0.5 range [0 ~ 1]]
+    - `border` [string default `rounded`]: Border style
+        - `rounded` / `sharp` / `horizontal` / `vertical` / `top` / `bottom` / `left` / `right` / `no[ne]`
+
 `fzf#wrap`
 ----------
 
-`fzf#wrap([name string,] [opts dict,] [fullscreen boolean])` is a helper
-function that decorates the options dictionary so that it understands
-`g:fzf_layout`, `g:fzf_action`, `g:fzf_colors`, and `g:fzf_history_dir` like
-`:FZF`.
+We have seen that several aspects of `:FZF` command can be configured with
+a set of global option variables; different ways to open files
+(`g:fzf_action`), window position and size (`g:fzf_layout`), color palette
+(`g:fzf_colors`), etc.
+
+So how can we make our custom `fzf#run` calls also respect those variables?
+Simply by *"wrapping"* the spec dictionary with `fzf#wrap` before passing it
+to `fzf#run`.
+
+- **`fzf#wrap([name string], [spec dict], [fullscreen bool]) -> (dict)`**
+    - All arguments are optional. Usually we only need to pass a spec dictionary.
+    - `name` is for managing history files. It is ignored if
+      `g:fzf_history_dir` is not defined.
+    - `fullscreen` can be either `0` or `1` (default: 0).
+
+`fzf#wrap` takes a spec and returns an extended version of it (also
+a dictionary) with additional options for addressing global preferences. You
+can examine the return value of it like so:
 
 ```vim
-command! -bang MyStuff
-  \ call fzf#run(fzf#wrap('my-stuff', {'dir': '~/my-stuff'}, <bang>0))
+echo fzf#wrap({'source': 'ls'})
 ```
 
-GVim
+After we *"wrap"* our spec, we pass it to `fzf#run`.
+
+```vim
+call fzf#run(fzf#wrap({'source': 'ls'}))
+```
+
+Now it supports `CTRL-T`, `CTRL-V`, and `CTRL-X` key bindings (configurable
+via `g:fzf_action`) and it opens fzf window according to `g:fzf_layout`
+setting.
+
+To make it easier to use, let's define `LS` command.
+
+```vim
+command! LS call fzf#run(fzf#wrap({'source': 'ls'}))
+```
+
+Type `:LS` and see how it works.
+
+We would like to make `:LS!` (bang version) open fzf in fullscreen, just like
+`:FZF!`. Add `-bang` to command definition, and use `<bang>` value to set
+the last `fullscreen` argument of `fzf#wrap` (see `:help <bang>`).
+
+```vim
+" On :LS!, <bang> evaluates to '!', and '!0' becomes 1
+command! -bang LS call fzf#run(fzf#wrap({'source': 'ls'}, <bang>0))
+```
+
+Our `:LS` command will be much more useful if we can pass a directory argument
+to it, so that something like `:LS /tmp` is possible.
+
+```vim
+command! -bang -complete=dir -nargs=? LS
+    \ call fzf#run(fzf#wrap({'source': 'ls', 'dir': <q-args>}, <bang>0))
+```
+
+Lastly, if you have enabled `g:fzf_history_dir`, you might want to assign
+a unique name to our command and pass it as the first argument to `fzf#wrap`.
+
+```vim
+" The query history for this command will be stored as 'ls' inside g:fzf_history_dir.
+" The name is ignored if g:fzf_history_dir is not defined.
+command! -bang -complete=dir -nargs=? LS
+    \ call fzf#run(fzf#wrap('ls', {'source': 'ls', 'dir': <q-args>}, <bang>0))
+```
+
+### Global options supported by `fzf#wrap`
+
+- `g:fzf_layout`
+- `g:fzf_action`
+    - **Works only when no custom `sink` (or `sink*`) is provided**
+        - Having custom sink usually means that each entry is not an ordinary
+          file path (e.g. name of color scheme), so we can't blindly apply the
+          same strategy (i.e. `tabedit some-color-scheme` doesn't make sense)
+- `g:fzf_colors`
+- `g:fzf_history_dir`
+
+Tips
 ----
 
-With the latest version of GVim, fzf will start inside the builtin terminal
-emulator of Vim. Please note that this terminal feature of Vim is still young
-and unstable and you may run into some issues.
+### fzf inside terminal buffer
 
-If you have an older version of GVim, you need an external terminal emulator
-to start fzf with. `xterm` command is used by default, but you can customize
-it with `g:fzf_launcher`.
+The latest versions of Vim and Neovim include builtin terminal emulator
+(`:terminal`) and fzf will start in a terminal buffer in the following cases:
+
+- On Neovim
+- On GVim
+- On Terminal Vim with a non-default layout
+    - `call fzf#run({'left': '30%'})` or `let g:fzf_layout = {'left': '30%'}`
+
+#### Starting fzf in a popup window
 
 ```vim
-" This is the default. %s is replaced with fzf command
-let g:fzf_launcher = 'xterm -e bash -ic %s'
-
-" Use urxvt instead
-let g:fzf_launcher = 'urxvt -geometry 120x30 -e sh -c %s'
+" Required:
+" - width [float range [0 ~ 1]] or [integer range [8 ~ ]]
+" - height [float range [0 ~ 1]] or [integer range [4 ~ ]]
+"
+" Optional:
+" - xoffset [float default 0.5 range [0 ~ 1]]
+" - yoffset [float default 0.5 range [0 ~ 1]]
+" - border [string default 'rounded']: Border style
+"   - 'rounded' / 'sharp' / 'horizontal' / 'vertical' / 'top' / 'bottom' / 'left' / 'right'
+let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 ```
 
-If you're running MacVim on OSX, I recommend you to use iTerm2 as the
-launcher. Refer to the [this wiki page][macvim-iterm2] to see how to set up.
+Alternatively, you can make fzf open in a tmux popup window (requires tmux 3.2
+or above) by putting fzf-tmux options in `tmux` key.
 
-[macvim-iterm2]: https://github.com/junegunn/fzf/wiki/On-MacVim-with-iTerm2
+```vim
+" See `man fzf-tmux` for available options
+if exists('$TMUX')
+  let g:fzf_layout = { 'tmux': '-p90%,60%' }
+else
+  let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+endif
+```
+
+#### Hide statusline
+
+When fzf starts in a terminal buffer, the file type of the buffer is set to
+`fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
+the window.
+
+For example, if you use a non-popup layout (e.g. `{'down': '40%'}`) on Neovim,
+you might want to temporarily disable the statusline for a cleaner look.
+
+```vim
+if has('nvim') && !exists('g:fzf_layout')
+  autocmd! FileType fzf
+  autocmd  FileType fzf set laststatus=0 noshowmode noruler
+    \| autocmd BufLeave <buffer> set laststatus=2 showmode ruler
+endif
+```
 
 [License](LICENSE)
 ------------------
 
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi

README.md

@@ -1,4 +1,4 @@
-<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf.png" height="170" alt="fzf - a command-line fuzzy finder"> [![travis-ci](https://travis-ci.org/junegunn/fzf.svg?branch=master)](https://travis-ci.org/junegunn/fzf) [![Donate via PayPal](https://img.shields.io/badge/Donate-PayPal-green.svg)](https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=EKYAW9PGKPD2N)
+<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf.png" height="170" alt="fzf - a command-line fuzzy finder"> [![github-actions](https://github.com/junegunn/fzf/workflows/Test%20fzf%20on%20Linux/badge.svg)](https://github.com/junegunn/fzf/actions)
 ===
 
 fzf is a general-purpose command-line fuzzy finder.
@@ -17,44 +17,55 @@ Pros
 - The most comprehensive feature set
 - Flexible layout
 - Batteries included
-    - Vim/Neovim plugin, key bindings and fuzzy auto-completion
+    - Vim/Neovim plugin, key bindings, and fuzzy auto-completion
 
 Table of Contents
 -----------------
 
-   * [Installation](#installation)
-      * [Using git](#using-git)
-      * [Using Homebrew or Linuxbrew](#using-homebrew-or-linuxbrew)
-      * [As Vim plugin](#as-vim-plugin)
-      * [Windows](#windows)
-   * [Upgrading fzf](#upgrading-fzf)
-   * [Building fzf](#building-fzf)
-   * [Usage](#usage)
-      * [Using the finder](#using-the-finder)
-      * [Layout](#layout)
-      * [Search syntax](#search-syntax)
-      * [Environment variables](#environment-variables)
-      * [Options](#options)
-   * [Examples](#examples)
-   * [fzf-tmux script](#fzf-tmux-script)
-   * [Key bindings for command line](#key-bindings-for-command-line)
-   * [Fuzzy completion for bash and zsh](#fuzzy-completion-for-bash-and-zsh)
-      * [Files and directories](#files-and-directories)
-      * [Process IDs](#process-ids)
-      * [Host names](#host-names)
-      * [Environment variables / Aliases](#environment-variables--aliases)
-      * [Settings](#settings)
-      * [Supported commands](#supported-commands)
-   * [Vim plugin](#vim-plugin)
-   * [Advanced topics](#advanced-topics)
-      * [Performance](#performance)
-      * [Executing external programs](#executing-external-programs)
-      * [Preview window](#preview-window)
-   * [Tips](#tips)
-      * [Respecting .gitignore, <code>.hgignore</code>, and <code>svn:ignore</code>](#respecting-gitignore-hgignore-and-svnignore)
-      * [git ls-tree for fast traversal](#git-ls-tree-for-fast-traversal)
-      * [Fish shell](#fish-shell)
-   * [<a href="LICENSE">License</a>](#license)
+<!-- vim-markdown-toc GFM -->
+
+* [Installation](#installation)
+  * [Using Homebrew](#using-homebrew)
+  * [Using git](#using-git)
+  * [Using Linux package managers](#using-linux-package-managers)
+  * [Windows](#windows)
+  * [As Vim plugin](#as-vim-plugin)
+* [Upgrading fzf](#upgrading-fzf)
+* [Building fzf](#building-fzf)
+* [Usage](#usage)
+    * [Using the finder](#using-the-finder)
+    * [Layout](#layout)
+    * [Search syntax](#search-syntax)
+    * [Environment variables](#environment-variables)
+    * [Options](#options)
+    * [Demo](#demo)
+* [Examples](#examples)
+* [`fzf-tmux` script](#fzf-tmux-script)
+* [Key bindings for command-line](#key-bindings-for-command-line)
+* [Fuzzy completion for bash and zsh](#fuzzy-completion-for-bash-and-zsh)
+    * [Files and directories](#files-and-directories)
+    * [Process IDs](#process-ids)
+    * [Host names](#host-names)
+    * [Environment variables / Aliases](#environment-variables--aliases)
+    * [Settings](#settings)
+    * [Supported commands](#supported-commands)
+    * [Custom fuzzy completion](#custom-fuzzy-completion)
+* [Vim plugin](#vim-plugin)
+* [Advanced topics](#advanced-topics)
+  * [Performance](#performance)
+  * [Executing external programs](#executing-external-programs)
+  * [Reloading the candidate list](#reloading-the-candidate-list)
+    * [1. Update the list of processes by pressing CTRL-R](#1-update-the-list-of-processes-by-pressing-ctrl-r)
+    * [2. Switch between sources by pressing CTRL-D or CTRL-F](#2-switch-between-sources-by-pressing-ctrl-d-or-ctrl-f)
+    * [3. Interactive ripgrep integration](#3-interactive-ripgrep-integration)
+  * [Preview window](#preview-window)
+* [Tips](#tips)
+    * [Respecting `.gitignore`](#respecting-gitignore)
+    * [Fish shell](#fish-shell)
+* [Related projects](#related-projects)
+* [License](#license)
+
+<!-- vim-markdown-toc -->
 
 Installation
 ------------
@@ -71,22 +82,12 @@ fzf project consists of the following components:
 You can [download fzf executable][bin] alone if you don't need the extra
 stuff.
 
-[bin]: https://github.com/junegunn/fzf-bin/releases
+[bin]: https://github.com/junegunn/fzf/releases
 
-### Using git
+### Using Homebrew
 
-Clone this repository and run
-[install](https://github.com/junegunn/fzf/blob/master/install) script.
-
-```sh
-git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
-~/.fzf/install
-```
-
-### Using Homebrew or Linuxbrew
-
-Alternatively, you can use [Homebrew](http://brew.sh/) or
-[Linuxbrew](http://linuxbrew.sh/) to install fzf.
+You can use [Homebrew](http://brew.sh/) (on macOS or Linux)
+to install fzf.
 
 ```sh
 brew install fzf
@@ -95,53 +96,83 @@ brew install fzf
 $(brew --prefix)/opt/fzf/install
 ```
 
-### As Vim plugin
+fzf is also available [via MacPorts][portfile]: `sudo port install fzf`
 
-You can manually add the directory to `&runtimepath` as follows,
+[portfile]: https://github.com/macports/macports-ports/blob/master/sysutils/fzf/Portfile
 
-```vim
-" If installed using git
-set rtp+=~/.fzf
+### Using git
 
-" If installed using Homebrew
-set rtp+=/usr/local/opt/fzf
+Alternatively, you can "git clone" this repository to any directory and run
+[install](https://github.com/junegunn/fzf/blob/master/install) script.
+
+```sh
+git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
+~/.fzf/install
 ```
 
-But it's recommended that you use a plugin manager like
-[vim-plug](https://github.com/junegunn/vim-plug).
+### Using Linux package managers
 
-```vim
-Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
-```
+| Package Manager | Linux Distribution      | Command                            |
+| ---             | ---                     | ---                                |
+| APK             | Alpine Linux            | `sudo apk add fzf`                 |
+| APT             | Debian 9+/Ubuntu 19.10+ | `sudo apt-get install fzf`         |
+| Conda           |                         | `conda install -c conda-forge fzf` |
+| DNF             | Fedora                  | `sudo dnf install fzf`             |
+| Nix             | NixOS, etc.             | `nix-env -iA nixpkgs.fzf`          |
+| Pacman          | Arch Linux              | `sudo pacman -S fzf`               |
+| pkg             | FreeBSD                 | `pkg install fzf`                  |
+| pkg_add         | OpenBSD                 | `pkg_add fzf`                      |
+| XBPS            | Void Linux              | `sudo xbps-install -S fzf`         |
+| Zypper          | openSUSE                | `sudo zypper install fzf`          |
+
+> :warning: **Key bindings (CTRL-T / CTRL-R / ALT-C) and fuzzy auto-completion
+> may not be enabled by default.**
+>
+> Refer to the package documentation for more information. (e.g. `apt-cache show fzf`)
 
 ### Windows
 
 Pre-built binaries for Windows can be downloaded [here][bin]. fzf is also
-available as a [Chocolatey package][choco].
+available via [Chocolatey][choco] and [Scoop][scoop]:
+
+| Package manager | Command             |
+| ---             | ---                 |
+| Chocolatey      | `choco install fzf` |
+| Scoop           | `scoop install fzf` |
 
 [choco]: https://chocolatey.org/packages/fzf
+[scoop]: https://github.com/ScoopInstaller/Main/blob/master/bucket/fzf.json
 
-```sh
-choco install fzf
-```
-
-However, other components of the project may not work on Windows. Known issues
-and limitations can be found on [the wiki page][windows-wiki]. You might want
-to consider installing fzf on [Windows Subsystem for Linux][wsl] where
-everything runs flawlessly.
+Known issues and limitations on Windows can be found on [the wiki
+page][windows-wiki].
 
 [windows-wiki]: https://github.com/junegunn/fzf/wiki/Windows
-[wsl]: https://blogs.msdn.microsoft.com/wsl/
+
+### As Vim plugin
+
+If you use
+[vim-plug](https://github.com/junegunn/vim-plug), add this line to your Vim
+configuration file:
+
+```vim
+Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
+```
+
+`fzf#install()` makes sure that you have the latest binary, but it's optional,
+so you can omit it if you use a plugin manager that doesn't support hooks.
+
+For more installation options, see [README-VIM.md](README-VIM.md).
 
 Upgrading fzf
 -------------
 
-fzf is being actively developed and you might want to upgrade it once in a
+fzf is being actively developed, and you might want to upgrade it once in a
 while. Please follow the instruction below depending on the installation
 method used.
 
 - git: `cd ~/.fzf && git pull && ./install`
-- brew: `brew update; brew reinstall fzf`
+- brew: `brew update; brew upgrade fzf`
+- macports: `sudo port upgrade fzf`
 - chocolatey: `choco upgrade fzf`
 - vim-plug: `:PlugUpdate fzf`
 
@@ -186,8 +217,8 @@ cursor with `--height` option.
 vim $(fzf --height 40%)
 ```
 
-Also check out `--reverse` option if you prefer "top-down" layout instead of
-the default "bottom-up" layout.
+Also, check out `--reverse` and `--layout` options if you prefer
+"top-down" layout instead of the default "bottom-up" layout.
 
 ```sh
 vim $(fzf --height 40% --reverse)
@@ -197,7 +228,7 @@ You can add these options to `$FZF_DEFAULT_OPTS` so that they're applied by
 default. For example,
 
 ```sh
-export FZF_DEFAULT_OPTS='--height 40% --reverse --border'
+export FZF_DEFAULT_OPTS='--height 40% --layout=reverse --border'
 ```
 
 #### Search syntax
@@ -206,14 +237,15 @@ Unless otherwise specified, fzf starts in "extended-search mode" where you can
 type in multiple search terms delimited by spaces. e.g. `^music .mp3$ sbtrkt
 !fire`
 
-| Token    | Match type                 | Description                       |
-| -------- | -------------------------- | --------------------------------- |
-| `sbtrkt` | fuzzy-match                | Items that match `sbtrkt`         |
-| `^music` | prefix-exact-match         | Items that start with `music`     |
-| `.mp3$`  | suffix-exact-match         | Items that end with `.mp3`        |
-| `'wild`  | exact-match (quoted)       | Items that include `wild`         |
-| `!fire`  | inverse-exact-match        | Items that do not include `fire`  |
-| `!.mp3$` | inverse-suffix-exact-match | Items that do not end with `.mp3` |
+| Token     | Match type                 | Description                          |
+| --------- | -------------------------- | ------------------------------------ |
+| `sbtrkt`  | fuzzy-match                | Items that match `sbtrkt`            |
+| `'wild`   | exact-match (quoted)       | Items that include `wild`            |
+| `^music`  | prefix-exact-match         | Items that start with `music`        |
+| `.mp3$`   | suffix-exact-match         | Items that end with `.mp3`           |
+| `!fire`   | inverse-exact-match        | Items that do not include `fire`     |
+| `!^music` | inverse-prefix-exact-match | Items that do not start with `music` |
+| `!.mp3$`  | inverse-suffix-exact-match | Items that do not end with `.mp3`    |
 
 If you don't prefer fuzzy matching and do not wish to "quote" every word,
 start fzf with `-e` or `--exact` option. Note that when  `--exact` is set,
@@ -231,15 +263,29 @@ or `py`.
 
 - `FZF_DEFAULT_COMMAND`
     - Default command to use when input is tty
-    - e.g. `export FZF_DEFAULT_COMMAND='ag -g ""'`
+    - e.g. `export FZF_DEFAULT_COMMAND='fd --type f'`
+    - > :warning: This variable is not used by shell extensions due to the
+      > slight difference in requirements.
+      >
+      > (e.g. `CTRL-T` runs `$FZF_CTRL_T_COMMAND` instead, `vim **<tab>` runs
+      > `_fzf_compgen_path()`, and `cd **<tab>` runs `_fzf_compgen_dir()`)
+      >
+      > The available options are described later in this document.
 - `FZF_DEFAULT_OPTS`
     - Default options
-    - e.g. `export FZF_DEFAULT_OPTS="--reverse --inline-info"`
+    - e.g. `export FZF_DEFAULT_OPTS="--layout=reverse --inline-info"`
 
 #### Options
 
 See the man page (`man fzf`) for the full list of options.
 
+#### Demo
+If you learn by watching videos, check out this screencast by [@samoshkin](https://github.com/samoshkin) to explore `fzf` features.
+
+<a title="fzf - command-line fuzzy finder" href="https://www.youtube.com/watch?v=qgG5Jhi_Els">
+  <img src="https://i.imgur.com/vtG8olE.png" width="640">
+</a>
+
 Examples
 --------
 
@@ -253,8 +299,10 @@ own as well.
 [fzf-tmux](bin/fzf-tmux) is a bash script that opens fzf in a tmux pane.
 
 ```sh
-# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
-#        (-[udlr]: up/down/left/right)
+# usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
+
+# See available options
+fzf-tmux --help
 
 # select git branches in horizontal split below (15 lines)
 git branch | fzf-tmux -d 15
@@ -263,7 +311,7 @@ git branch | fzf-tmux -d 15
 cat /usr/share/dict/words | fzf-tmux -l 20% --multi --reverse
 ```
 
-It will still work even when you're not on tmux, silently ignoring `-[udlr]`
+It will still work even when you're not on tmux, silently ignoring `-[pudlr]`
 options, so you can invariably use `fzf-tmux` in your scripts.
 
 Alternatively, you can use `--height HEIGHT[%]` option not to start fzf in
@@ -273,16 +321,16 @@ fullscreen mode.
 fzf --height 40%
 ```
 
-Key bindings for command line
+Key bindings for command-line
 -----------------------------
 
 The install script will setup the following key bindings for bash, zsh, and
 fish.
 
-- `CTRL-T` - Paste the selected files and directories onto the command line
+- `CTRL-T` - Paste the selected files and directories onto the command-line
     - Set `FZF_CTRL_T_COMMAND` to override the default command
     - Set `FZF_CTRL_T_OPTS` to pass additional options
-- `CTRL-R` - Paste the selected command from history onto the command line
+- `CTRL-R` - Paste the selected command from history onto the command-line
     - If you want to see the commands in chronological order, press `CTRL-R`
       again which toggles sorting by relevance
     - Set `FZF_CTRL_R_OPTS` to pass additional options
@@ -290,13 +338,9 @@ fish.
     - Set `FZF_ALT_C_COMMAND` to override the default command
     - Set `FZF_ALT_C_OPTS` to pass additional options
 
-If you're on a tmux session, you can start fzf in a split pane by setting
-`FZF_TMUX` to 1, and change the height of the pane with `FZF_TMUX_HEIGHT`
-(e.g. `20`, `50%`).
-
-If you use vi mode on bash, you need to add `set -o vi` *before* `source
-~/.fzf.bash` in your .bashrc, so that it correctly sets up key bindings for vi
-mode.
+If you're on a tmux session, you can start fzf in a tmux split-pane or in
+a tmux popup window by setting `FZF_TMUX_OPTS` (e.g. `-d 40%`).
+See `fzf-tmux --help` for available options.
 
 More tips can be found on [the wiki page](https://github.com/junegunn/fzf/wiki/Configuring-shell-key-bindings).
 
@@ -306,12 +350,12 @@ Fuzzy completion for bash and zsh
 #### Files and directories
 
 Fuzzy completion for files and directories can be triggered if the word before
-the cursor ends with the trigger sequence which is by default `**`.
+the cursor ends with the trigger sequence, which is by default `**`.
 
 - `COMMAND [DIRECTORY/][FUZZY_PATTERN]**<TAB>`
 
 ```sh
-# Files under current directory
+# Files under the current directory
 # - You can select multiple items with TAB key
 vim **<TAB>
 
@@ -334,8 +378,8 @@ cd ~/github/fzf**<TAB>
 
 #### Process IDs
 
-Fuzzy completion for PIDs is provided for kill command. In this case
-there is no trigger sequence, just press tab key after kill command.
+Fuzzy completion for PIDs is provided for kill command. In this case,
+there is no trigger sequence; just press the tab key after the kill command.
 
 ```sh
 # Can select multiple processes with <TAB> or <Shift-TAB> keys
@@ -344,7 +388,7 @@ kill -9 <TAB>
 
 #### Host names
 
-For ssh and telnet commands, fuzzy completion for host names is provided. The
+For ssh and telnet commands, fuzzy completion for hostnames is provided. The
 names are extracted from /etc/hosts and ~/.ssh/config.
 
 ```sh
@@ -367,37 +411,97 @@ unalias **<TAB>
 export FZF_COMPLETION_TRIGGER='~~'
 
 # Options to fzf command
-export FZF_COMPLETION_OPTS='+c -x'
+export FZF_COMPLETION_OPTS='--border --info=inline'
 
-# Use ag instead of the default find command for listing path candidates.
-# - The first argument to the function is the base path to start traversal
+# Use fd (https://github.com/sharkdp/fd) instead of the default find
+# command for listing path candidates.
+# - The first argument to the function ($1) is the base path to start traversal
 # - See the source code (completion.{bash,zsh}) for the details.
-# - ag only lists files, so we use with-dir script to augment the output
 _fzf_compgen_path() {
-  ag -g "" "$1" | with-dir "$1"
+  fd --hidden --follow --exclude ".git" . "$1"
 }
 
-# Use ag to generate the list for directory completion
+# Use fd to generate the list for directory completion
 _fzf_compgen_dir() {
-  ag -g "" "$1" | only-dir "$1"
+  fd --type d --hidden --follow --exclude ".git" . "$1"
+}
+
+# (EXPERIMENTAL) Advanced customization of fzf options via _fzf_comprun function
+# - The first argument to the function is the name of the command.
+# - You should make sure to pass the rest of the arguments to fzf.
+_fzf_comprun() {
+  local command=$1
+  shift
+
+  case "$command" in
+    cd)           fzf "$@" --preview 'tree -C {} | head -200' ;;
+    export|unset) fzf "$@" --preview "eval 'echo \$'{}" ;;
+    ssh)          fzf "$@" --preview 'dig {}' ;;
+    *)            fzf "$@" ;;
+  esac
 }
 ```
 
-`only-dir` and `with-dir` scripts can be found [here][dir-scripts]. They are
-written in Ruby, but you should be able to rewrite them in any language you
-prefer.
-
-[dir-scripts]: https://gist.github.com/junegunn/8c3796a965f22e6a803fe53096ad7a75
-
 #### Supported commands
 
 On bash, fuzzy completion is enabled only for a predefined set of commands
 (`complete | grep _fzf` to see the list). But you can enable it for other
-commands as well like follows.
+commands as well by using `_fzf_setup_completion` helper function.
 
 ```sh
-complete -F _fzf_path_completion -o default -o bashdefault ag
-complete -F _fzf_dir_completion -o default -o bashdefault tree
+# usage: _fzf_setup_completion path|dir|var|alias|host COMMANDS...
+_fzf_setup_completion path ag git kubectl
+_fzf_setup_completion dir tree
+```
+
+#### Custom fuzzy completion
+
+_**(Custom completion API is experimental and subject to change)**_
+
+For a command named _"COMMAND"_, define `_fzf_complete_COMMAND` function using
+`_fzf_complete` helper.
+
+```sh
+# Custom fuzzy completion for "doge" command
+#   e.g. doge **<TAB>
+_fzf_complete_doge() {
+  _fzf_complete --multi --reverse --prompt="doge> " -- "$@" < <(
+    echo very
+    echo wow
+    echo such
+    echo doge
+  )
+}
+```
+
+- The arguments before `--` are the options to fzf.
+- After `--`, simply pass the original completion arguments unchanged (`"$@"`).
+- Then, write a set of commands that generates the completion candidates and
+  feed its output to the function using process substitution (`< <(...)`).
+
+zsh will automatically pick up the function using the naming convention but in
+bash you have to manually associate the function with the command using the
+`complete` command.
+
+```sh
+[ -n "$BASH" ] && complete -F _fzf_complete_doge -o default -o bashdefault doge
+```
+
+If you need to post-process the output from fzf, define
+`_fzf_complete_COMMAND_post` as follows.
+
+```sh
+_fzf_complete_foo() {
+  _fzf_complete --multi --reverse --header-lines=3 -- "$@" < <(
+    ls -al
+  )
+}
+
+_fzf_complete_foo_post() {
+  awk '{print $NF}'
+}
+
+[ -n "$BASH" ] && complete -F _fzf_complete_foo -o default -o bashdefault foo
 ```
 
 Vim plugin
@@ -410,18 +514,18 @@ Advanced topics
 
 ### Performance
 
-fzf is fast, and is [getting even faster][perf]. Performance should not be
+fzf is fast and is [getting even faster][perf]. Performance should not be
 a problem in most use cases. However, you might want to be aware of the
-options that affect the performance.
+options that affect performance.
 
-- `--ansi` tells fzf to extract and parse ANSI color codes in the input and it
+- `--ansi` tells fzf to extract and parse ANSI color codes in the input, and it
   makes the initial scanning slower. So it's not recommended that you add it
   to your `$FZF_DEFAULT_OPTS`.
-- `--nth` makes fzf slower as fzf has to tokenize each line.
+- `--nth` makes fzf slower because it has to tokenize each line.
 - `--with-nth` makes fzf slower as fzf has to tokenize and reassemble each
   line.
 - If you absolutely need better performance, you can consider using
-  `--algo=v1` (the default being `v2`) to make fzf use faster greedy
+  `--algo=v1` (the default being `v2`) to make fzf use a faster greedy
   algorithm. However, this algorithm is not guaranteed to find the optimal
   ordering of the matches and is not recommended.
 
@@ -440,120 +544,148 @@ fzf --bind 'f1:execute(less -f {}),ctrl-y:execute-silent(echo {} | pbcopy)+abort
 
 See *KEY BINDINGS* section of the man page for details.
 
+### Reloading the candidate list
+
+By binding `reload` action to a key or an event, you can make fzf dynamically
+reload the candidate list. See https://github.com/junegunn/fzf/issues/1750 for
+more details.
+
+#### 1. Update the list of processes by pressing CTRL-R
+
+```sh
+FZF_DEFAULT_COMMAND='ps -ef' \
+  fzf --bind 'ctrl-r:reload($FZF_DEFAULT_COMMAND)' \
+      --header 'Press CTRL-R to reload' --header-lines=1 \
+      --height=50% --layout=reverse
+```
+
+#### 2. Switch between sources by pressing CTRL-D or CTRL-F
+
+```sh
+FZF_DEFAULT_COMMAND='find . -type f' \
+  fzf --bind 'ctrl-d:reload(find . -type d),ctrl-f:reload($FZF_DEFAULT_COMMAND)' \
+      --height=50% --layout=reverse
+```
+
+#### 3. Interactive ripgrep integration
+
+The following example uses fzf as the selector interface for ripgrep. We bound
+`reload` action to `change` event, so every time you type on fzf, the ripgrep
+process will restart with the updated query string denoted by the placeholder
+expression `{q}`. Also, note that we used `--disabled` option so that fzf 
+doesn't perform any secondary filtering.
+
+```sh
+INITIAL_QUERY=""
+RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY'" \
+  fzf --bind "change:reload:$RG_PREFIX {q} || true" \
+      --ansi --disabled --query "$INITIAL_QUERY" \
+      --height=50% --layout=reverse
+```
+
+If ripgrep doesn't find any matches, it will exit with a non-zero exit status,
+and fzf will warn you about it. To suppress the warning message, we added
+`|| true` to the command, so that it always exits with 0.
+
 ### Preview window
 
-When `--preview` option is set, fzf automatically starts external process with
-the current line as the argument and shows the result in the split window.
+When the `--preview` option is set, fzf automatically starts an external process
+with the current line as the argument and shows the result in the split window.
+Your `$SHELL` is used to execute the command with `$SHELL -c COMMAND`.
+The window can be scrolled using the mouse or custom key bindings.
 
 ```bash
-# {} is replaced to the single-quoted string of the focused line
+# {} is replaced with the single-quoted string of the focused line
 fzf --preview 'cat {}'
 ```
 
-Since preview window is updated only after the process is complete, it's
-important that the command finishes quickly.
+Preview window supports ANSI colors, so you can use any program that
+syntax-highlights the content of a file, such as
+[Bat](https://github.com/sharkdp/bat) or
+[Highlight](http://www.andre-simon.de/doku/highlight/en/highlight.php):
 
 ```bash
-# Use head instead of cat so that the command doesn't take too long to finish
-fzf --preview 'head -100 {}'
+fzf --preview 'bat --style=numbers --color=always --line-range :500 {}'
 ```
 
-Preview window supports ANSI colors, so you can use programs that
-syntax-highlights the content of a file.
-
-- Highlight: http://www.andre-simon.de/doku/highlight/en/highlight.php
-- CodeRay: http://coderay.rubychan.de/
-- Rouge: https://github.com/jneen/rouge
+You can customize the size, position, and border of the preview window using
+`--preview-window` option, and the foreground and background color of it with
+`--color` option. For example,
 
 ```bash
-# Try highlight, coderay, rougify in turn, then fall back to cat
-fzf --preview '[[ $(file --mime {}) =~ binary ]] &&
-                 echo {} is a binary file ||
-                 (highlight -O ansi -l {} ||
-                  coderay {} ||
-                  rougify {} ||
-                  cat {}) 2> /dev/null | head -500'
+fzf --height 40% --layout reverse --info inline --border \
+    --preview 'file {}' --preview-window up,1,border-horizontal \
+    --color 'fg:#bbccdd,fg+:#ddeeff,bg:#334455,preview-bg:#223344,border:#778899'
 ```
 
-You can customize the size and position of the preview window using
-`--preview-window` option. For example,
+See the man page (`man fzf`) for the full list of options.
 
-```bash
-fzf --height 40% --reverse --preview 'file {}' --preview-window down:1
-```
-
-For more advanced examples, see [Key bindings for git with fzf][fzf-git].
+For more advanced examples, see [Key bindings for git with fzf][fzf-git]
+([code](https://gist.github.com/junegunn/8b572b8d4b5eddd8b85e5f4d40f17236)).
 
 [fzf-git]: https://junegunn.kr/2016/07/fzf-git/
 
+----
+
+Since fzf is a general-purpose text filter rather than a file finder, **it is
+not a good idea to add `--preview` option to your `$FZF_DEFAULT_OPTS`**.
+
+```sh
+# *********************
+# ** DO NOT DO THIS! **
+# *********************
+export FZF_DEFAULT_OPTS='--preview "bat --style=numbers --color=always --line-range :500 {}"'
+
+# bat doesn't work with any input other than the list of files
+ps -ef | fzf
+seq 100 | fzf
+history | fzf
+```
+
 Tips
 ----
 
-#### Respecting `.gitignore`, `.hgignore`, and `svn:ignore`
+#### Respecting `.gitignore`
 
-[ag](https://github.com/ggreer/the_silver_searcher) or
-[rg](https://github.com/BurntSushi/ripgrep) will do the
-filtering:
+You can use [fd](https://github.com/sharkdp/fd),
+[ripgrep](https://github.com/BurntSushi/ripgrep), or [the silver
+searcher](https://github.com/ggreer/the_silver_searcher) instead of the
+default find command to traverse the file system while respecting
+`.gitignore`.
 
 ```sh
-# Feed the output of ag into fzf
-ag -g "" | fzf
+# Feed the output of fd into fzf
+fd --type f | fzf
 
-# Setting ag as the default source for fzf
-export FZF_DEFAULT_COMMAND='ag -g ""'
+# Setting fd as the default source for fzf
+export FZF_DEFAULT_COMMAND='fd --type f'
 
-# Now fzf (w/o pipe) will use ag instead of find
+# Now fzf (w/o pipe) will use fd instead of find
 fzf
 
 # To apply the command to CTRL-T as well
 export FZF_CTRL_T_COMMAND="$FZF_DEFAULT_COMMAND"
 ```
 
-If you don't want to exclude hidden files, use the following command:
+If you want the command to follow symbolic links and don't want it to exclude
+hidden files, use the following command:
 
 ```sh
-export FZF_DEFAULT_COMMAND='ag --hidden --ignore .git -g ""'
-```
-
-#### `git ls-tree` for fast traversal
-
-If you're running fzf in a large git repository, `git ls-tree` can boost up the
-speed of the traversal.
-
-```sh
-export FZF_DEFAULT_COMMAND='
-  (git ls-tree -r --name-only HEAD ||
-   find . -path "*/\.*" -prune -o -type f -print -o -type l -print |
-      sed s/^..//) 2> /dev/null'
+export FZF_DEFAULT_COMMAND='fd --type f --hidden --follow --exclude .git'
 ```
 
 #### Fish shell
 
-Fish shell before version 2.6.0 [doesn't allow](https://github.com/fish-shell/fish-shell/issues/1362)
-reading from STDIN in command substitution, which means simple `vim (fzf)`
-doesn't work as expected. The workaround for fish 2.5.0 and earlier is to use
-the `read` fish command:
-
-```sh
-fzf | read -l result; and vim $result
-```
-
-or, for multiple results:
-
-```sh
-fzf -m | while read -l r; set result $result $r; end; and vim $result
-```
-
-The globbing system is different in fish and thus `**` completion will not work.
-However, the `CTRL-T` command will use the last token on the commandline as the
-root folder for the recursive search. For instance, hitting `CTRL-T` at the end
-of the following commandline
+`CTRL-T` key binding of fish, unlike those of bash and zsh, will use the last
+token on the command-line as the root directory for the recursive search. For
+instance, hitting `CTRL-T` at the end of the following command-line
 
 ```sh
 ls /var/
 ```
 
-will list all files and folders under `/var/`.
+will list all files and directories under `/var/`.
 
 When using a custom `FZF_CTRL_T_COMMAND`, use the unexpanded `$dir` variable to
 make use of this feature. `$dir` defaults to `.` when the last token is not a
@@ -563,9 +695,14 @@ valid directory. Example:
 set -g FZF_CTRL_T_COMMAND "command find -L \$dir -type f 2> /dev/null | sed '1d; s#^\./##'"
 ```
 
+Related projects
+----------------
+
+https://github.com/junegunn/fzf/wiki/Related-projects
+
 [License](LICENSE)
 ------------------
 
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi

bin/fzf-tmux

@@ -1,6 +1,6 @@
 #!/usr/bin/env bash
 # fzf-tmux: starts fzf in a tmux pane
-# usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+# usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
 
 fail() {
   >&2 echo "$1"
@@ -10,6 +10,7 @@ fail() {
 fzf="$(command -v fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
 [[ -x "$fzf" ]] || fail 'fzf executable not found'
 
+tmux_args=()
 args=()
 opt=""
 skip=""
@@ -20,15 +21,23 @@ term=""
 [[ -n "$COLUMNS" ]] && columns=$COLUMNS || columns=$(tput cols) || columns=$(tmux display-message -p "#{pane_width}")
 
 help() {
-  >&2 echo 'usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+  >&2 echo 'usage: fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
 
-  Layout
-    -u [HEIGHT[%]]  Split above (up)
-    -d [HEIGHT[%]]  Split below (down)
-    -l [WIDTH[%]]   Split left
-    -r [WIDTH[%]]   Split right
+  LAYOUT OPTIONS:
+    (default layout: -d 50%)
 
-    (default: -d 50%)
+    Popup window (requires tmux 3.2 or above):
+      -p [WIDTH[%][,HEIGHT[%]]]  (default: 50%)
+      -w WIDTH[%]
+      -h HEIGHT[%]
+      -x COL
+      -y ROW
+
+    Split pane:
+      -u [HEIGHT[%]]             Split above (up)
+      -d [HEIGHT[%]]             Split below (down)
+      -l [WIDTH[%]]              Split left
+      -r [WIDTH[%]]              Split right
 '
   exit
 }
@@ -47,8 +56,10 @@ while [[ $# -gt 0 ]]; do
       echo "fzf-tmux (with fzf $("$fzf" --version))"
       exit
       ;;
-    -w*|-h*|-d*|-u*|-r*|-l*)
-      if [[ "$arg" =~ ^.[lrw] ]]; then
+    -p*|-w*|-h*|-x*|-y*|-d*|-u*|-r*|-l*)
+      if [[ "$arg" =~ ^-[pwhxy] ]]; then
+        [[ "$opt" =~ "-K -E" ]] || opt="-K -E"
+      elif [[ "$arg" =~ ^.[lr] ]]; then
         opt="-h"
         if [[ "$arg" =~ ^.l ]]; then
           opt="$opt -d"
@@ -66,7 +77,7 @@ while [[ $# -gt 0 ]]; do
       if [[ ${#arg} -gt 2 ]]; then
         size="${arg:2}"
       else
-        if [[ "$1" =~ ^[0-9]+%?$ ]]; then
+        if [[ "$1" =~ ^[0-9%,]+$ ]] || [[ "$1" =~ ^[A-Z]$ ]]; then
           size="$1"
           shift
         else
@@ -74,7 +85,15 @@ while [[ $# -gt 0 ]]; do
         fi
       fi
 
-      if [[ "$size" =~ %$ ]]; then
+      if [[ "$arg" =~ ^-p ]]; then
+        if [[ -n "$size" ]]; then
+          w=${size%%,*}
+          h=${size##*,}
+          opt="$opt -w$w -h$h"
+        fi
+      elif [[ "$arg" =~ ^-[whxy] ]]; then
+        opt="$opt ${arg:0:2}$size"
+      elif [[ "$size" =~ %$ ]]; then
         size=${size:0:((${#size}-1))}
         if [[ -n "$swap" ]]; then
           opt="$opt -p $(( 100 - size ))"
@@ -100,6 +119,8 @@ while [[ $# -gt 0 ]]; do
       # "--" can be used to separate fzf-tmux options from fzf options to
       # avoid conflicts
       skip=1
+      tmux_args=("${args[@]}")
+      args=()
       continue
       ;;
     *)
@@ -109,17 +130,17 @@ while [[ $# -gt 0 ]]; do
   [[ -n "$skip" ]] && args+=("$arg")
 done
 
-if [[ -z "$TMUX" || "$opt" =~ ^-h && "$columns" -le 40 || ! "$opt" =~ ^-h && "$lines" -le 15 ]]; then
+if [[ -z "$TMUX" ]]; then
   "$fzf" "${args[@]}"
   exit $?
 fi
 
-# --height option is not allowed
-args+=("--no-height")
+# --height option is not allowed. CTRL-Z is also disabled.
+args=("${args[@]}" "--no-height" "--bind=ctrl-z:ignore")
 
-# Handle zoomed tmux pane by moving it to a temp window
-if tmux list-panes -F '#F' | grep -q Z; then
-  zoomed=1
+# Handle zoomed tmux pane without popup options by moving it to a temp window
+if [[ ! "$opt" =~ "-K -E" ]] && tmux list-panes -F '#F' | grep -q Z; then
+  zoomed_without_popup=1
   original_window=$(tmux display-message -p "#{window_id}")
   tmp_window=$(tmux new-window -d -P -F "#{window_id}" "bash -c 'while :; do for c in \\| / - '\\;' do sleep 0.2; printf \"\\r\$c fzf-tmux is running\\r\"; done; done'")
   tmux swap-pane -t $tmp_window \; select-window -t $tmp_window
@@ -133,11 +154,17 @@ argsf="${TMPDIR:-/tmp}/fzf-args-$id"
 fifo1="${TMPDIR:-/tmp}/fzf-fifo1-$id"
 fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
 fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
+tmux_win_opts=( $(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/') )
 cleanup() {
   \rm -f $argsf $fifo1 $fifo2 $fifo3
 
-  # Remove temp window if we were zoomed
-  if [[ -n "$zoomed" ]]; then
+  # Restore tmux window options
+  if [[ "${#tmux_win_opts[@]}" -gt 0 ]]; then
+    eval "tmux ${tmux_win_opts[*]}"
+  fi
+
+  # Remove temp window if we were zoomed without popup options
+  if [[ -n "$zoomed_without_popup" ]]; then
     tmux display-message -p "#{window_id}" > /dev/null
     tmux swap-pane -t $original_window \; \
       select-window -t $original_window \; \
@@ -153,42 +180,54 @@ cleanup() {
 trap 'cleanup 1' SIGUSR1
 trap 'cleanup' EXIT
 
-envs="env TERM=$TERM "
+envs="export TERM=$TERM "
+[[ "$opt" =~ "-K -E" ]] && FZF_DEFAULT_OPTS="--margin 0,1 $FZF_DEFAULT_OPTS"
 [[ -n "$FZF_DEFAULT_OPTS"    ]] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
 [[ -n "$FZF_DEFAULT_COMMAND" ]] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
-
-mkfifo -m o+w $fifo2
-mkfifo -m o+w $fifo3
+echo "$envs;" > "$argsf"
 
 # Build arguments to fzf
-opts=""
-for arg in "${args[@]}"; do
-  arg="${arg//\\/\\\\}"
-  arg="${arg//\"/\\\"}"
-  arg="${arg//\`/\\\`}"
-  arg="${arg//$/\\$}"
-  opts="$opts \"$arg\""
-done
+opts=$(printf "%q " "${args[@]}")
 
 pppid=$$
-echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" > $argsf
+echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" >> $argsf
 close="; trap - EXIT SIGINT SIGTERM $close"
 
+export TMUX=$(cut -d , -f 1,2 <<< "$TMUX")
+mkfifo -m o+w $fifo2
+if [[ "$opt" =~ "-K -E" ]]; then
+  cat $fifo2 &
+  if [[ -n "$term" ]] || [[ -t 0 ]]; then
+    cat <<< "\"$fzf\" $opts > $fifo2; out=\$? $close; exit \$out" >> $argsf
+  else
+    mkfifo $fifo1
+    cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; out=\$? $close; exit \$out" >> $argsf
+    cat <&0 > $fifo1 &
+  fi
+
+  # tmux dropped the support for `-K`, `-R` to popup command
+  #   TODO: We can remove this once tmux 3.2 is released
+  if [[ ! "$(tmux popup --help 2>&1)" =~ '-R shell-command' ]]; then
+    opt="${opt/-K/}"
+  else
+    opt="${opt} -R"
+  fi
+
+  tmux popup -d "$PWD" "${tmux_args[@]}" $opt "bash $argsf" > /dev/null 2>&1
+  exit $?
+fi
+
+mkfifo -m o+w $fifo3
 if [[ -n "$term" ]] || [[ -t 0 ]]; then
   cat <<< "\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" >> $argsf
-  TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
-    set-window-option remain-on-exit off \;\
-    split-window $opt "$envs bash -c 'cd $(printf %q "$PWD"); exec -a fzf bash $argsf'" $swap \
-    > /dev/null 2>&1
 else
   mkfifo $fifo1
   cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" >> $argsf
-  TMUX=$(echo $TMUX | cut -d , -f 1,2) tmux set-window-option synchronize-panes off \;\
-    set-window-option remain-on-exit off \;\
-    split-window $opt "$envs bash -c 'exec -a fzf bash $argsf'" $swap \
-    > /dev/null 2>&1
   cat <&0 > $fifo1 &
 fi
+tmux set-window-option synchronize-panes off \;\
+  set-window-option remain-on-exit off \;\
+  split-window -c "$PWD" $opt "${tmux_args[@]}" "bash -c 'exec -a fzf bash $argsf'" $swap \
+  > /dev/null 2>&1 || { "$fzf" "${args[@]}"; exit $?; }
 cat $fifo2
 exit "$(cat $fifo3)"
-

doc/fzf.txt

@@ -1,33 +1,98 @@
-fzf.txt	fzf	Last change: September 29 2017
+fzf.txt	fzf	Last change: January 3 2021
 FZF - TABLE OF CONTENTS                                            *fzf* *fzf-toc*
 ==============================================================================
 
-  FZF Vim integration
-    :FZF[!]
-      Configuration
-        Examples
-    fzf#run
-    fzf#wrap
-    GVim
-    License
+  FZF Vim integration                       |fzf-vim-integration|
+    Installation                            |fzf-installation|
+    Summary                                 |fzf-summary|
+    :FZF[!]                                 |:FZF|
+      Configuration                         |fzf-configuration|
+        Examples                            |fzf-examples|
+          Explanation of g:fzf_colors       |fzf-explanation-of-gfzfcolors|
+    fzf#run                                 |fzf#run|
+    fzf#wrap                                |fzf#wrap|
+      Global options supported by fzf#wrap  |fzf-global-options-supported-by-fzf#wrap|
+    Tips                                    |fzf-tips|
+      fzf inside terminal buffer            |fzf-inside-terminal-buffer|
+        Starting fzf in a popup window      |fzf-starting-fzf-in-a-popup-window|
+        Hide statusline                     |fzf-hide-statusline|
+    License                                 |fzf-license|
 
 FZF VIM INTEGRATION                                        *fzf-vim-integration*
 ==============================================================================
 
-This repository only enables basic integration with Vim. If you're looking for
-more, check out {fzf.vim}{1} project.
 
-(Note: To use fzf in GVim, an external terminal emulator is required.)
+INSTALLATION                                                  *fzf-installation*
+==============================================================================
 
-                                       {1} https://github.com/junegunn/fzf.vim
+Once you have fzf installed, you can enable it inside Vim simply by adding the
+directory to 'runtimepath' in your Vim configuration file. The path may differ
+depending on the package manager.
+>
+    " If installed using Homebrew
+    set rtp+=/usr/local/opt/fzf
+
+    " If installed using git
+    set rtp+=~/.fzf
+<
+If you use {vim-plug}{1}, the same can be written as:
+>
+    " If installed using Homebrew
+    Plug '/usr/local/opt/fzf'
+
+    " If installed using git
+    Plug '~/.fzf'
+<
+But if you want the latest Vim plugin file from GitHub rather than the one
+included in the package, write:
+>
+    Plug 'junegunn/fzf'
+<
+The Vim plugin will pick up fzf binary available on the system. If fzf is not
+found on `$PATH`, it will ask you if it should download the latest binary for
+you.
+
+To make sure that you have the latest version of the binary, set up
+post-update hook like so:
+
+                                                                   *fzf#install*
+>
+    Plug 'junegunn/fzf', { 'do': { -> fzf#install() } }
+<
+                                      {1} https://github.com/junegunn/vim-plug
+
+
+SUMMARY                                                            *fzf-summary*
+==============================================================================
+
+The Vim plugin of fzf provides two core functions, and `:FZF` command which is
+the basic file selector command built on top of them.
+
+ 1. `fzf#run([spec dict])`
+   - Starts fzf inside Vim with the given spec
+   - `:call fzf#run({'source': 'ls'})`
+ 2. `fzf#wrap([spec dict]) -> (dict)`
+   - Takes a spec for `fzf#run` and returns an extended version of it with
+     additional options for addressing global preferences (`g:fzf_xxx`)
+     - `:echo fzf#wrap({'source': 'ls'})`
+   - We usually wrap a spec with `fzf#wrap` before passing it to `fzf#run`
+     - `:call fzf#run(fzf#wrap({'source': 'ls'}))`
+ 3. `:FZF [fzf_options string] [path string]`
+   - Basic fuzzy file selector
+   - A reference implementation for those who don't want to write VimScript to
+     implement custom commands
+   - If you're looking for more such commands, check out {fzf.vim}{2} project.
+
+The most important of all is `fzf#run`, but it would be easier to understand
+the whole if we start off with `:FZF` command.
+
+                                       {2} https://github.com/junegunn/fzf.vim
 
 
 :FZF[!]
 ==============================================================================
 
                                                                           *:FZF*
-
-If you have set up fzf for Vim, `:FZF` command will be added.
 >
     " Look for files under current directory
     :FZF
@@ -35,27 +100,26 @@ If you have set up fzf for Vim, `:FZF` command will be added.
     " Look for files under your home directory
     :FZF ~
 
-    " With options
-    :FZF --no-sort --reverse --inline-info /tmp
+    " With fzf command-line options
+    :FZF --reverse --info=inline /tmp
 
     " Bang version starts fzf in fullscreen mode
     :FZF!
 <
-Similarly to {ctrlp.vim}{2}, use enter key, CTRL-T, CTRL-X or CTRL-V to open
+Similarly to {ctrlp.vim}{3}, use enter key, CTRL-T, CTRL-X or CTRL-V to open
 selected files in the current window, in new tabs, in horizontal splits, or in
 vertical splits respectively.
 
 Note that the environment variables `FZF_DEFAULT_COMMAND` and
 `FZF_DEFAULT_OPTS` also apply here.
 
-                                         {2} https://github.com/kien/ctrlp.vim
+                                         {3} https://github.com/kien/ctrlp.vim
 
 
 < Configuration >_____________________________________________________________~
                                                              *fzf-configuration*
 
-       *g:fzf_action* *g:fzf_layout* *g:fzf_colors* *g:fzf_history_dir* *g:fzf_launcher*
-                                                                *g:Fzf_launcher*
+                      *g:fzf_action* *g:fzf_layout* *g:fzf_colors* *g:fzf_history_dir*
 
  - `g:fzf_action`
    - Customizable extra key bindings for opening selected files in different
@@ -66,9 +130,6 @@ Note that the environment variables `FZF_DEFAULT_COMMAND` and
    - Customizes fzf colors to match the current color scheme
  - `g:fzf_history_dir`
    - Enables history feature
- - `g:fzf_launcher`
-   - (Only in GVim) Terminal emulator to open fzf with
-   - `g:Fzf_launcher` for function reference
 
 
 Examples~
@@ -94,15 +155,19 @@ Examples~
       \ 'ctrl-v': 'vsplit' }
 
     " Default fzf layout
-    " - down / up / left / right
-    let g:fzf_layout = { 'down': '~40%' }
+    " - Popup window
+    let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
 
-    " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
+    " - down / up / left / right
+    let g:fzf_layout = { 'down': '40%' }
+
+    " - Window using a Vim command
     let g:fzf_layout = { 'window': 'enew' }
     let g:fzf_layout = { 'window': '-tabnew' }
-    let g:fzf_layout = { 'window': '10split enew' }
+    let g:fzf_layout = { 'window': '10new' }
 
     " Customize fzf colors to match your color scheme
+    " - fzf#wrap translates this to a set of `--color` options
     let g:fzf_colors =
     \ { 'fg':      ['fg', 'Normal'],
       \ 'bg':      ['bg', 'Normal'],
@@ -118,22 +183,113 @@ Examples~
       \ 'spinner': ['fg', 'Label'],
       \ 'header':  ['fg', 'Comment'] }
 
-    " Enable per-command history.
-    " CTRL-N and CTRL-P will be automatically bound to next-history and
-    " previous-history instead of down and up. If you don't like the change,
-    " explicitly bind the keys to down and up in your $FZF_DEFAULT_OPTS.
+    " Enable per-command history
+    " - History files will be stored in the specified directory
+    " - When set, CTRL-N and CTRL-P will be bound to 'next-history' and
+    "   'previous-history' instead of 'down' and 'up'.
     let g:fzf_history_dir = '~/.local/share/fzf-history'
 <
 
-FZF#RUN                                                                *fzf#run*
+Explanation of g:fzf_colors~
+                                                 *fzf-explanation-of-gfzfcolors*
+
+`g:fzf_colors` is a dictionary mapping fzf elements to a color specification
+list:
+>
+    element: [ component, group1 [, group2, ...] ]
+<
+ - `element` is an fzf element to apply a color to:
+
+ ----------------------------+------------------------------------------------------
+ Element                     | Description                                          ~
+ ----------------------------+------------------------------------------------------
+  `fg`   /  `bg`   /  `hl`         | Item (foreground / background / highlight)
+  `fg+`  /  `bg+`  /  `hl+`        | Current item (foreground / background / highlight)
+  `preview-fg`  /  `preview-bg`  | Preview window text and background
+  `hl`   /  `hl+`                | Highlighted substrings (normal / current)
+  `gutter`                     | Background of the gutter on the left
+  `pointer`                    | Pointer to the current line ( `>` )
+  `marker`                     | Multi-select marker ( `>` )
+  `border`                     | Border around the window ( `--border`  and  `--preview` )
+  `header`                     | Header ( `--header`  or  `--header-lines` )
+  `info`                       | Info line (match counters)
+  `spinner`                    | Streaming input indicator
+  `query`                      | Query string
+  `disabled`                   | Query string when search is disabled
+  `prompt`                     | Prompt before query ( `> ` )
+  `pointer`                    | Pointer to the current line ( `>` )
+ ----------------------------+------------------------------------------------------
+ - `component` specifies the component (`fg` / `bg`) from which to extract the
+   color when considering each of the following highlight groups
+ - `group1 [, group2, ...]` is a list of highlight groups that are searched (in
+   order) for a matching color definition
+
+For example, consider the following specification:
+>
+      'prompt':  ['fg', 'Conditional', 'Comment'],
+<
+This means we color the prompt - using the `fg` attribute of the `Conditional`
+if it exists, - otherwise use the `fg` attribute of the `Comment` highlight
+group if it exists, - otherwise fall back to the default color settings for
+the prompt.
+
+You can examine the color option generated according the setting by printing
+the result of `fzf#wrap()` function like so:
+>
+    :echo fzf#wrap()
+<
+
+FZF#RUN
 ==============================================================================
 
-For more advanced uses, you can use `fzf#run([options])` function with the
-following options.
+                                                                       *fzf#run*
 
- ---------------------------+---------------+--------------------------------------------------------------
- Option name                | Type          | Description                                                  ~
- ---------------------------+---------------+--------------------------------------------------------------
+`fzf#run()` function is the core of Vim integration. It takes a single
+dictionary argument, a spec, and starts fzf process accordingly. At the very
+least, specify `sink` option to tell what it should do with the selected
+entry.
+>
+    call fzf#run({'sink': 'e'})
+<
+We haven't specified the `source`, so this is equivalent to starting fzf on
+command line without standard input pipe; fzf will use find command (or
+`$FZF_DEFAULT_COMMAND` if defined) to list the files under the current
+directory. When you select one, it will open it with the sink, `:e` command.
+If you want to open it in a new tab, you can pass `:tabedit` command instead
+as the sink.
+>
+    call fzf#run({'sink': 'tabedit'})
+<
+Instead of using the default find command, you can use any shell command as
+the source. The following example will list the files managed by git. It's
+equivalent to running `git ls-files | fzf` on shell.
+>
+    call fzf#run({'source': 'git ls-files', 'sink': 'e'})
+<
+fzf options can be specified as `options` entry in spec dictionary.
+>
+    call fzf#run({'sink': 'tabedit', 'options': '--multi --reverse'})
+<
+You can also pass a layout option if you don't want fzf window to take up the
+entire screen.
+>
+    " up / down / left / right / window are allowed
+    call fzf#run({'source': 'git ls-files', 'sink': 'e', 'left': '40%'})
+    call fzf#run({'source': 'git ls-files', 'sink': 'e', 'window': '30vnew'})
+<
+`source` doesn't have to be an external shell command, you can pass a Vim
+array as the source. In the next example, we pass the names of color schemes
+as the source to implement a color scheme selector.
+>
+    call fzf#run({'source': map(split(globpath(&rtp, 'colors/*.vim')),
+                \               'fnamemodify(v:val, ":t:r")'),
+                \ 'sink': 'colo', 'left': '25%'})
+<
+The following table summarizes the available options.
+
+ ---------------------------+---------------+----------------------------------------------------------------------
+ Option name                | Type          | Description                                                          ~
+ ---------------------------+---------------+----------------------------------------------------------------------
   `source`                    | string        | External command to generate input to fzf (e.g.  `find .` )
   `source`                    | list          | Vim list as input to fzf
   `sink`                      | string        | Vim command to handle the selected item (e.g.  `e` ,  `tabe` )
@@ -141,61 +297,170 @@ following options.
   `sink*`                     | funcref       | Similar to  `sink` , but takes the list of output lines at once
   `options`                   | string/list   | Options to fzf
   `dir`                       | string        | Working directory
-  `up` / `down` / `left` / `right`  | number/string | Use tmux pane with the given size (e.g.  `20` ,  `50%` )
-  `window`  (Vim 8 / Neovim)  | string        | Command to open fzf window (e.g.  `vertical aboveleft 30new` )
-  `launcher`                  | string        | External terminal emulator to start fzf with (GVim only)
-  `launcher`                  | funcref       | Function for generating  `launcher`  string (GVim only)
- ---------------------------+---------------+--------------------------------------------------------------
+  `up` / `down` / `left` / `right`  | number/string | (Layout) Window position and size (e.g.  `20` ,  `50%` )
+  `tmux`                      | string        | (Layout) fzf-tmux options (e.g.  `-p90%,60%` )
+  `window`  (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g.  `vertical aboveleft 30new` )
+  `window`  (Vim 8 / Neovim)  | dict          | (Layout) Popup window settings (e.g.  `{'width': 0.9, 'height': 0.6}` )
+ ---------------------------+---------------+----------------------------------------------------------------------
 
 `options` entry can be either a string or a list. For simple cases, string
-should suffice, but prefer to use list type if you're concerned about escaping
-issues on different platforms.
+should suffice, but prefer to use list type to avoid escaping issues.
 >
     call fzf#run({'options': '--reverse --prompt "C:\\Program Files\\"'})
     call fzf#run({'options': ['--reverse', '--prompt', 'C:\Program Files\']})
 <
+When `window` entry is a dictionary, fzf will start in a popup window. The
+following options are allowed:
 
-FZF#WRAP                                                              *fzf#wrap*
+ - Required:
+   - `width` [float range [0 ~ 1]] or [integer range [8 ~ ]]
+   - `height` [float range [0 ~ 1]] or [integer range [4 ~ ]]
+ - Optional:
+   - `yoffset` [float default 0.5 range [0 ~ 1]]
+   - `xoffset` [float default 0.5 range [0 ~ 1]]
+   - `border` [string default `rounded`]: Border style
+     - `rounded` / `sharp` / `horizontal` / `vertical` / `top` / `bottom` / `left` / `right` / `no[ne]`
+
+
+FZF#WRAP
 ==============================================================================
 
-`fzf#wrap([name string,] [opts dict,] [fullscreen boolean])` is a helper
-function that decorates the options dictionary so that it understands
-`g:fzf_layout`, `g:fzf_action`, `g:fzf_colors`, and `g:fzf_history_dir` like
-`:FZF`.
+                                                                      *fzf#wrap*
+
+We have seen that several aspects of `:FZF` command can be configured with a
+set of global option variables; different ways to open files (`g:fzf_action`),
+window position and size (`g:fzf_layout`), color palette (`g:fzf_colors`),
+etc.
+
+So how can we make our custom `fzf#run` calls also respect those variables?
+Simply by "wrapping" the spec dictionary with `fzf#wrap` before passing it to
+`fzf#run`.
+
+ - `fzf#wrap([name string], [spec dict], [fullscreen bool]) -> (dict)`
+   - All arguments are optional. Usually we only need to pass a spec
+     dictionary.
+   - `name` is for managing history files. It is ignored if `g:fzf_history_dir`
+     is not defined.
+   - `fullscreen` can be either `0` or `1` (default: 0).
+
+`fzf#wrap` takes a spec and returns an extended version of it (also a
+dictionary) with additional options for addressing global preferences. You can
+examine the return value of it like so:
 >
-    command! -bang MyStuff
-      \ call fzf#run(fzf#wrap('my-stuff', {'dir': '~/my-stuff'}, <bang>0))
+    echo fzf#wrap({'source': 'ls'})
+<
+After we "wrap" our spec, we pass it to `fzf#run`.
+>
+    call fzf#run(fzf#wrap({'source': 'ls'}))
+<
+Now it supports CTRL-T, CTRL-V, and CTRL-X key bindings (configurable via
+`g:fzf_action`) and it opens fzf window according to `g:fzf_layout` setting.
+
+To make it easier to use, let's define `LS` command.
+>
+    command! LS call fzf#run(fzf#wrap({'source': 'ls'}))
+<
+Type `:LS` and see how it works.
+
+We would like to make `:LS!` (bang version) open fzf in fullscreen, just like
+`:FZF!`. Add `-bang` to command definition, and use <bang> value to set the
+last `fullscreen` argument of `fzf#wrap` (see :help <bang>).
+>
+    " On :LS!, <bang> evaluates to '!', and '!0' becomes 1
+    command! -bang LS call fzf#run(fzf#wrap({'source': 'ls'}, <bang>0))
+<
+Our `:LS` command will be much more useful if we can pass a directory argument
+to it, so that something like `:LS /tmp` is possible.
+>
+    command! -bang -complete=dir -nargs=* LS
+        \ call fzf#run(fzf#wrap({'source': 'ls', 'dir': <q-args>}, <bang>0))
+<
+Lastly, if you have enabled `g:fzf_history_dir`, you might want to assign a
+unique name to our command and pass it as the first argument to `fzf#wrap`.
+>
+    " The query history for this command will be stored as 'ls' inside g:fzf_history_dir.
+    " The name is ignored if g:fzf_history_dir is not defined.
+    command! -bang -complete=dir -nargs=* LS
+        \ call fzf#run(fzf#wrap('ls', {'source': 'ls', 'dir': <q-args>}, <bang>0))
 <
 
-GVIM                                                                  *fzf-gvim*
+< Global options supported by fzf#wrap >______________________________________~
+                                      *fzf-global-options-supported-by-fzf#wrap*
+
+ - `g:fzf_layout`
+ - `g:fzf_action`
+   - Works only when no custom `sink` (or `sink*`) is provided
+     - Having custom sink usually means that each entry is not an ordinary
+       file path (e.g. name of color scheme), so we can't blindly apply the
+       same strategy (i.e. `tabedit some-color-scheme` doesn't make sense)
+ - `g:fzf_colors`
+ - `g:fzf_history_dir`
+
+
+TIPS                                                                  *fzf-tips*
 ==============================================================================
 
-With the latest version of GVim, fzf will start inside the builtin terminal
-emulator of Vim. Please note that this terminal feature of Vim is still young
-and unstable and you may run into some issues.
 
-If you have an older version of GVim, you need an external terminal emulator
-to start fzf with. `xterm` command is used by default, but you can customize
-it with `g:fzf_launcher`.
+< fzf inside terminal buffer >________________________________________________~
+                                                    *fzf-inside-terminal-buffer*
+
+The latest versions of Vim and Neovim include builtin terminal emulator
+(`:terminal`) and fzf will start in a terminal buffer in the following cases:
+
+ - On Neovim
+ - On GVim
+ - On Terminal Vim with a non-default layout
+   - `call fzf#run({'left': '30%'})` or `let g:fzf_layout = {'left': '30%'}`
+
+
+Starting fzf in a popup window~
+                                            *fzf-starting-fzf-in-a-popup-window*
 >
-    " This is the default. %s is replaced with fzf command
-    let g:fzf_launcher = 'xterm -e bash -ic %s'
-
-    " Use urxvt instead
-    let g:fzf_launcher = 'urxvt -geometry 120x30 -e sh -c %s'
+    " Required:
+    " - width [float range [0 ~ 1]] or [integer range [8 ~ ]]
+    " - height [float range [0 ~ 1]] or [integer range [4 ~ ]]
+    "
+    " Optional:
+    " - xoffset [float default 0.5 range [0 ~ 1]]
+    " - yoffset [float default 0.5 range [0 ~ 1]]
+    " - border [string default 'rounded']: Border style
+    "   - 'rounded' / 'sharp' / 'horizontal' / 'vertical' / 'top' / 'bottom' / 'left' / 'right'
+    let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+<
+Alternatively, you can make fzf open in a tmux popup window (requires tmux 3.2
+or above) by putting fzf-tmux options in `tmux` key.
+>
+    " See `man fzf-tmux` for available options
+    if exists('$TMUX')
+      let g:fzf_layout = { 'tmux': '-p90%,60%' }
+    else
+      let g:fzf_layout = { 'window': { 'width': 0.9, 'height': 0.6 } }
+    endif
 <
-If you're running MacVim on OSX, I recommend you to use iTerm2 as the
-launcher. Refer to the {this wiki page}{3} to see how to set up.
 
-                {3} https://github.com/junegunn/fzf/wiki/On-MacVim-with-iTerm2
+Hide statusline~
+                                                           *fzf-hide-statusline*
 
+When fzf starts in a terminal buffer, the file type of the buffer is set to
+`fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
+the window.
+
+For example, if you use a non-popup layout (e.g. `{'down': '40%'}`) on Neovim,
+you might want to temporarily disable the statusline for a cleaner look.
+>
+    if has('nvim') && !exists('g:fzf_layout')
+      autocmd! FileType fzf
+      autocmd  FileType fzf set laststatus=0 noshowmode noruler
+        \| autocmd BufLeave <buffer> set laststatus=2 showmode ruler
+    endif
+<
 
 LICENSE                                                            *fzf-license*
 ==============================================================================
 
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi
 
 ==============================================================================
 vim:tw=78:sw=2:ts=2:ft=help:norl:nowrap:

glide.lock

@@ -1,38 +0,0 @@
-hash: d68dd0bd779ac4ffca1e0c49ca38d85f90d5d68fa8e2d5d7db70a8ce8c662ec1
-updated: 2017-06-01T15:48:41.653745249-07:00
-imports:
-- name: github.com/gdamore/encoding
-  version: b23993cbb6353f0e6aa98d0ee318a34728f628b9
-- name: github.com/gdamore/tcell
-  version: 44772c121bb7838819d3ba4a7e84c0c2d617328e
-  subpackages:
-  - encoding
-- name: github.com/lucasb-eyer/go-colorful
-  version: c900de9dbbc73129068f5af6a823068fc5f2308c
-- name: github.com/mattn/go-isatty
-  version: 66b8e73f3f5cda9f96b69efd03dd3d7fc4a5cdb8
-- name: github.com/mattn/go-runewidth
-  version: 14207d285c6c197daabb5c9793d63e7af9ab2d50
-- name: github.com/mattn/go-shellwords
-  version: 02e3cf038dcea8290e44424da473dd12be796a8a
-- name: golang.org/x/crypto
-  version: e1a4589e7d3ea14a3352255d04b6f1a418845e5e
-  subpackages:
-  - ssh/terminal
-- name: golang.org/x/sys
-  version: b90f89a1e7a9c1f6b918820b3daa7f08488c8594
-  subpackages:
-  - unix
-- name: golang.org/x/text
-  version: 4ee4af566555f5fbe026368b75596286a312663a
-  subpackages:
-  - encoding
-  - encoding/charmap
-  - encoding/internal
-  - encoding/internal/identifier
-  - encoding/japanese
-  - encoding/korean
-  - encoding/simplifiedchinese
-  - encoding/traditionalchinese
-  - transform
-testImports: []

glide.yaml

@@ -1,16 +0,0 @@
-package: github.com/junegunn/fzf
-import:
-- package: github.com/mattn/go-isatty
-  version: 66b8e73f3f5cda9f96b69efd03dd3d7fc4a5cdb8
-- package: github.com/mattn/go-runewidth
-  version: 14207d285c6c197daabb5c9793d63e7af9ab2d50
-- package: github.com/mattn/go-shellwords
-  version: 02e3cf038dcea8290e44424da473dd12be796a8a
-- package: github.com/gdamore/tcell
-  version: 44772c121bb7838819d3ba4a7e84c0c2d617328e
-  subpackages:
-  - encoding
-- package: golang.org/x/crypto
-  version: e1a4589e7d3ea14a3352255d04b6f1a418845e5e
-  subpackages:
-  - ssh/terminal

go.mod

@@ -0,0 +1,17 @@
+module github.com/junegunn/fzf
+
+require (
+	github.com/gdamore/tcell v1.4.0
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.12
+	github.com/mattn/go-runewidth v0.0.12
+	github.com/mattn/go-shellwords v1.0.11
+	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/saracen/walker v0.1.2
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57
+	golang.org/x/term v0.0.0-20210317153231-de623e64d2a6
+	golang.org/x/text v0.3.6 // indirect
+)
+
+go 1.13

go.sum

@@ -0,0 +1,33 @@
+github.com/gdamore/encoding v1.0.0 h1:+7OoQ1Bc6eTm5niUzBa0Ctsh6JbMW6Ra+YNuAtDBdko=
+github.com/gdamore/encoding v1.0.0/go.mod h1:alR0ol34c49FCSBLjhosxzcPHQbf2trDkoo5dl+VrEg=
+github.com/gdamore/tcell v1.4.0 h1:vUnHwJRvcPQa3tzi+0QI4U9JINXYJlOz9yiaiPQ2wMU=
+github.com/gdamore/tcell v1.4.0/go.mod h1:vxEiSDZdW3L+Uhjii9c3375IlDmR05bzxY404ZVSMo0=
+github.com/lucasb-eyer/go-colorful v1.0.3/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/lucasb-eyer/go-colorful v1.2.0 h1:1nnpGOrhyZZuNyfu1QjKiUICQ74+3FNCN69Aj6K7nkY=
+github.com/lucasb-eyer/go-colorful v1.2.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
+github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-runewidth v0.0.7/go.mod h1:H031xJmbD/WCDINGzjvQ9THkh0rPKHF+m2gUSrubnMI=
+github.com/mattn/go-runewidth v0.0.12 h1:Y41i/hVW3Pgwr8gV+J23B9YEY0zxjptBuCWEaxmAOow=
+github.com/mattn/go-runewidth v0.0.12/go.mod h1:RAqKPSqVFrSLVXbA8x7dzmKdmGzieGRCM46jaSJTDAk=
+github.com/mattn/go-shellwords v1.0.11 h1:vCoR9VPpsk/TZFW2JwK5I9S0xdrtUq2bph6/YjEPnaw=
+github.com/mattn/go-shellwords v1.0.11/go.mod h1:EZzvwXDESEeg03EKmM+RmDnNOPKG4lLtQsUlTZDWQ8Y=
+github.com/rivo/uniseg v0.1.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/rivo/uniseg v0.2.0 h1:S1pD9weZBuJdFmowNwbpi7BJ8TNftyUImj/0WQi72jY=
+github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
+github.com/saracen/walker v0.1.2 h1:/o1TxP82n8thLvmL4GpJXduYaRmJ7qXp8u9dSlV0zmo=
+github.com/saracen/walker v0.1.2/go.mod h1:0oKYMsKVhSJ+ful4p/XbjvXbMgLEkLITZaxozsl4CGE=
+golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
+golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57 h1:F5Gozwx4I1xtr/sr/8CFbb57iKi3297KFs0QDbGN60A=
+golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/term v0.0.0-20210317153231-de623e64d2a6 h1:EC6+IGYTjPpRfv9a2b/6Puw0W+hLtAhkV1tPsXhutqs=
+golang.org/x/term v0.0.0-20210317153231-de623e64d2a6/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

install

@@ -2,13 +2,14 @@
 
 set -u
 
-version=0.17.1
+version=0.27.0
 auto_completion=
 key_bindings=
 update_config=2
-binary_arch=
-allow_legacy=
 shells="bash zsh fish"
+prefix='~/.fzf'
+prefix_expand=~/.fzf
+fish_dir=${XDG_CONFIG_HOME:-$HOME/.config}/fish
 
 help() {
   cat << EOF
@@ -18,6 +19,7 @@ usage: $0 [OPTIONS]
     --bin                Download fzf binary only; Do not generate ~/.fzf.{bash,zsh}
     --all                Download fzf binary and update configuration files
                          to enable key bindings and fuzzy completion
+    --xdg                Generate files under \$XDG_CONFIG_HOME/fzf
     --[no-]key-bindings  Enable/disable key bindings (CTRL-T, CTRL-R, ALT-C)
     --[no-]completion    Enable/disable fuzzy completion (bash & zsh)
     --[no-]update-rc     Whether or not to update shell configuration files
@@ -25,9 +27,6 @@ usage: $0 [OPTIONS]
     --no-bash            Do not set up bash configuration
     --no-zsh             Do not set up zsh configuration
     --no-fish            Do not set up fish configuration
-
-    --32                 Download 32-bit binary
-    --64                 Download 64-bit binary
 EOF
 }
 
@@ -41,7 +40,11 @@ for opt in "$@"; do
       auto_completion=1
       key_bindings=1
       update_config=1
-      allow_legacy=1
+      ;;
+    --xdg)
+      prefix='"${XDG_CONFIG_HOME:-$HOME/.config}"/fzf/fzf'
+      prefix_expand=${XDG_CONFIG_HOME:-$HOME/.config}/fzf/fzf
+      mkdir -p "${XDG_CONFIG_HOME:-$HOME/.config}/fzf"
       ;;
     --key-bindings)    key_bindings=1    ;;
     --no-key-bindings) key_bindings=0    ;;
@@ -49,8 +52,6 @@ for opt in "$@"; do
     --no-completion)   auto_completion=0 ;;
     --update-rc)       update_config=1   ;;
     --no-update-rc)    update_config=0   ;;
-    --32)              binary_arch=386   ;;
-    --64)              binary_arch=amd64 ;;
     --bin)             ;;
     --no-bash)         shells=${shells/bash/} ;;
     --no-zsh)          shells=${shells/zsh/} ;;
@@ -64,11 +65,13 @@ for opt in "$@"; do
 done
 
 cd "$(dirname "${BASH_SOURCE[0]}")"
-fzf_base="$(pwd)"
+fzf_base=$(pwd)
+fzf_base_esc=$(printf %q "$fzf_base")
 
 ask() {
   while true; do
     read -p "$1 ([y]/n) " -r
+    REPLY=${REPLY:-"y"}
     if [[ $REPLY =~ ^[Yy]$ ]]; then
       return 1
     elif [[ $REPLY =~ ^[Nn]$ ]]; then
@@ -80,17 +83,20 @@ ask() {
 check_binary() {
   echo -n "  - Checking fzf executable ... "
   local output
-  output=$("$fzf_base"/bin/fzf --version 2>&1 | awk '{print $1}')
+  output=$("$fzf_base"/bin/fzf --version 2>&1)
   if [ $? -ne 0 ]; then
     echo "Error: $output"
     binary_error="Invalid binary"
-  elif [ "$version" != "$output" ]; then
-    echo "$output != $version"
-    binary_error="Invalid version"
   else
-    echo "$output"
-    binary_error=""
-    return 0
+    output=${output/ */}
+    if [ "$version" != "$output" ]; then
+      echo "$output != $version"
+      binary_error="Invalid version"
+    else
+      echo "$output"
+      binary_error=""
+      return 0
+    fi
   fi
   rm -f "$fzf_base"/bin/fzf
   return 1
@@ -99,7 +105,7 @@ check_binary() {
 link_fzf_in_path() {
   if which_fzf="$(command -v fzf)"; then
     echo "  - Found in \$PATH"
-    echo "  - Creating symlink: $which_fzf -> bin/fzf"
+    echo "  - Creating symlink: bin/fzf -> $which_fzf"
     (cd "$fzf_base"/bin && rm -f fzf && ln -sf "$which_fzf" fzf)
     check_binary && return
   fi
@@ -108,7 +114,7 @@ link_fzf_in_path() {
 
 try_curl() {
   command -v curl > /dev/null &&
-  if [[ $1 =~ tgz$ ]]; then
+  if [[ $1 =~ tar.gz$ ]]; then
     curl -fL $1 | tar -xzf -
   else
     local temp=${TMPDIR:-/tmp}/fzf.zip
@@ -118,7 +124,7 @@ try_curl() {
 
 try_wget() {
   command -v wget > /dev/null &&
-  if [[ $1 =~ tgz$ ]]; then
+  if [[ $1 =~ tar.gz$ ]]; then
     wget -O - $1 | tar -xzf -
   else
     local temp=${TMPDIR:-/tmp}/fzf.zip
@@ -128,13 +134,11 @@ try_wget() {
 
 download() {
   echo "Downloading bin/fzf ..."
-  if [[ ! "$version" =~ alpha ]]; then
-    if [ -x "$fzf_base"/bin/fzf ]; then
-      echo "  - Already exists"
-      check_binary && return
-    fi
-    link_fzf_in_path && return
+  if [ -x "$fzf_base"/bin/fzf ]; then
+    echo "  - Already exists"
+    check_binary && return
   fi
+  link_fzf_in_path && return
   mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
   if [ $? -ne 0 ]; then
     binary_error="Failed to create bin directory"
@@ -142,9 +146,7 @@ download() {
   fi
 
   local url
-  [[ "$version" =~ alpha ]] &&
-    url=https://github.com/junegunn/fzf-bin/releases/download/alpha/${1} ||
-    url=https://github.com/junegunn/fzf-bin/releases/download/$version/${1}
+  url=https://github.com/junegunn/fzf/releases/download/$version/${1}
   set -o pipefail
   if ! (try_curl $url || try_wget $url); then
     set +o pipefail
@@ -166,23 +168,21 @@ archi=$(uname -sm)
 binary_available=1
 binary_error=""
 case "$archi" in
-  Darwin\ *64)   download fzf-$version-darwin_${binary_arch:-amd64}.tgz  ;;
-  Darwin\ *86)   download fzf-$version-darwin_${binary_arch:-386}.tgz    ;;
-  Linux\ *64)    download fzf-$version-linux_${binary_arch:-amd64}.tgz   ;;
-  Linux\ *86)    download fzf-$version-linux_${binary_arch:-386}.tgz     ;;
-  Linux\ armv5*) download fzf-$version-linux_${binary_arch:-arm5}.tgz    ;;
-  Linux\ armv6*) download fzf-$version-linux_${binary_arch:-arm6}.tgz    ;;
-  Linux\ armv7*) download fzf-$version-linux_${binary_arch:-arm7}.tgz    ;;
-  Linux\ armv8*) download fzf-$version-linux_${binary_arch:-arm8}.tgz    ;;
-  Linux\ aarch64*) download fzf-$version-linux_${binary_arch:-arm8}.tgz  ;;
-  FreeBSD\ *64)  download fzf-$version-freebsd_${binary_arch:-amd64}.tgz ;;
-  FreeBSD\ *86)  download fzf-$version-freebsd_${binary_arch:-386}.tgz   ;;
-  OpenBSD\ *64)  download fzf-$version-openbsd_${binary_arch:-amd64}.tgz ;;
-  OpenBSD\ *86)  download fzf-$version-openbsd_${binary_arch:-386}.tgz   ;;
-  CYGWIN*\ *64)  download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
-  MINGW*\ *86)   download fzf-$version-windows_${binary_arch:-386}.zip   ;;
-  MINGW*\ *64)   download fzf-$version-windows_${binary_arch:-amd64}.zip ;;
-  *)             binary_available=0 binary_error=1 ;;
+  Darwin\ arm64)   download fzf-$version-darwin_arm64.zip     ;;
+  Darwin\ x86_64)  download fzf-$version-darwin_amd64.zip     ;;
+  Linux\ armv5*)   download fzf-$version-linux_armv5.tar.gz   ;;
+  Linux\ armv6*)   download fzf-$version-linux_armv6.tar.gz   ;;
+  Linux\ armv7*)   download fzf-$version-linux_armv7.tar.gz   ;;
+  Linux\ armv8*)   download fzf-$version-linux_arm64.tar.gz   ;;
+  Linux\ aarch64*) download fzf-$version-linux_arm64.tar.gz   ;;
+  Linux\ *64)      download fzf-$version-linux_amd64.tar.gz   ;;
+  FreeBSD\ *64)    download fzf-$version-freebsd_amd64.tar.gz ;;
+  OpenBSD\ *64)    download fzf-$version-openbsd_amd64.tar.gz ;;
+  CYGWIN*\ *64)    download fzf-$version-windows_amd64.zip    ;;
+  MINGW*\ *64)     download fzf-$version-windows_amd64.zip    ;;
+  MSYS*\ *64)      download fzf-$version-windows_amd64.zip    ;;
+  Windows*\ *64)   download fzf-$version-windows_amd64.zip    ;;
+  *)               binary_available=0 binary_error=1 ;;
 esac
 
 cd "$fzf_base"
@@ -198,7 +198,7 @@ if [ -n "$binary_error" ]; then
       export GOPATH="${TMPDIR:-/tmp}/fzf-gopath"
       mkdir -p "$GOPATH"
     fi
-    if go get -u github.com/junegunn/fzf; then
+    if go get -ldflags "-s -w -X main.version=$version -X main.revision=go-get" github.com/junegunn/fzf; then
       echo "OK"
       cp "$GOPATH/bin/fzf" "$fzf_base/bin/"
     else
@@ -239,8 +239,8 @@ fi
 echo
 for shell in $shells; do
   [[ "$shell" = fish ]] && continue
-  echo -n "Generate ~/.fzf.$shell ... "
-  src=~/.fzf.${shell}
+  src=${prefix_expand}.${shell}
+  echo -n "Generate $src ... "
 
   fzf_completion="[[ \$- == *i* ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
   if [ $auto_completion -eq 0 ]; then
@@ -252,11 +252,11 @@ for shell in $shells; do
     fzf_key_bindings="# $fzf_key_bindings"
   fi
 
-  cat > $src << EOF
+  cat > "$src" << EOF
 # Setup fzf
 # ---------
-if [[ ! "\$PATH" == *$fzf_base/bin* ]]; then
-  export PATH="\$PATH:$fzf_base/bin"
+if [[ ! "\$PATH" == *$fzf_base_esc/bin* ]]; then
+  export PATH="\${PATH:+\${PATH}:}$fzf_base/bin"
 fi
 
 # Auto-completion
@@ -266,7 +266,6 @@ $fzf_completion
 # Key bindings
 # ------------
 $fzf_key_bindings
-
 EOF
   echo "OK"
 done
@@ -275,18 +274,18 @@ done
 if [[ "$shells" =~ fish ]]; then
   echo -n "Update fish_user_paths ... "
   fish << EOF
-  echo \$fish_user_paths | \grep $fzf_base/bin > /dev/null
-  or set --universal fish_user_paths \$fish_user_paths $fzf_base/bin
+  echo \$fish_user_paths | \grep "$fzf_base"/bin > /dev/null
+  or set --universal fish_user_paths \$fish_user_paths "$fzf_base"/bin
 EOF
   [ $? -eq 0 ] && echo "OK" || echo "Failed"
 
-  mkdir -p ~/.config/fish/functions
-  if [ -e ~/.config/fish/functions/fzf.fish ]; then
-    echo -n "Remove unnecessary ~/.config/fish/functions/fzf.fish ... "
-    rm -f ~/.config/fish/functions/fzf.fish && echo "OK" || echo "Failed"
+  mkdir -p "${fish_dir}/functions"
+  if [ -e "${fish_dir}/functions/fzf.fish" ]; then
+    echo -n "Remove unnecessary ${fish_dir}/functions/fzf.fish ... "
+    rm -f "${fish_dir}/functions/fzf.fish" && echo "OK" || echo "Failed"
   fi
 
-  fish_binding=~/.config/fish/functions/fzf_key_bindings.fish
+  fish_binding="${fish_dir}/functions/fzf_key_bindings.fish"
   if [ $key_bindings -ne 0 ]; then
     echo -n "Symlink $fish_binding ... "
     ln -sf "$fzf_base/shell/key-bindings.fish" \
@@ -352,11 +351,11 @@ echo
 for shell in $shells; do
   [[ "$shell" = fish ]] && continue
   [ $shell = zsh ] && dest=${ZDOTDIR:-~}/.zshrc || dest=~/.bashrc
-  append_line $update_config "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" "$dest" "~/.fzf.${shell}"
+  append_line $update_config "[ -f ${prefix}.${shell} ] && source ${prefix}.${shell}" "$dest" "${prefix}.${shell}"
 done
 
 if [ $key_bindings -eq 1 ] && [[ "$shells" =~ fish ]]; then
-  bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
+  bind_file="${fish_dir}/functions/fish_user_key_bindings.fish"
   if [ ! -e "$bind_file" ]; then
     create_file "$bind_file" \
       'function fish_user_key_bindings' \
@@ -369,7 +368,11 @@ fi
 
 if [ $update_config -eq 1 ]; then
   echo 'Finished. Restart your shell or reload config file.'
-  [[ "$shells" =~ bash ]] && echo '   source ~/.bashrc  # bash'
+  if [[ "$shells" =~ bash ]]; then
+    echo -n '   source ~/.bashrc  # bash'
+    [[ "$archi" =~ Darwin ]] && echo -n '  (.bashrc should be loaded from .bash_profile)'
+    echo
+  fi
   [[ "$shells" =~ zsh ]]  && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
   [[ "$shells" =~ fish ]] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
   echo

install.ps1

@@ -0,0 +1,65 @@
+$version="0.27.0"
+
+$fzf_base=Split-Path -Parent $MyInvocation.MyCommand.Definition
+
+function check_binary () {
+  Write-Host "  - Checking fzf executable ... " -NoNewline
+  $output=cmd /c $fzf_base\bin\fzf.exe --version 2>&1
+  if (-not $?) {
+    Write-Host "Error: $output"
+    $binary_error="Invalid binary"
+  } else {
+    $output=(-Split $output)[0]
+    if ($version -ne $output) {
+      Write-Host "$output != $version"
+      $binary_error="Invalid version"
+    } else {
+      Write-Host "$output"
+      $binary_error=""
+      return 1
+    }
+  }
+  Remove-Item "$fzf_base\bin\fzf.exe"
+  return 0
+}
+
+function download {
+  param($file)
+  Write-Host "Downloading bin/fzf ..."
+  if (Test-Path "$fzf_base\bin\fzf.exe") {
+    Write-Host "  - Already exists"
+    if (check_binary) {
+      return
+    }
+  }
+  if (-not (Test-Path "$fzf_base\bin")) {
+    md "$fzf_base\bin"
+  }
+  if (-not $?) {
+    $binary_error="Failed to create bin directory"
+    return
+  }
+  cd "$fzf_base\bin"
+  $url="https://github.com/junegunn/fzf/releases/download/$version/$file"
+  $temp=$env:TMP + "\fzf.zip"
+  [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
+  if ($PSVersionTable.PSVersion.Major -ge 3) {
+    Invoke-WebRequest -Uri $url -OutFile $temp
+  } else {
+    (New-Object Net.WebClient).DownloadFile($url, $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath("$temp"))
+  }
+  if ($?) {
+    (Microsoft.PowerShell.Archive\Expand-Archive -Path $temp -DestinationPath .); (Remove-Item $temp)
+  } else {
+    $binary_error="Failed to download with powershell"
+  }
+  if (-not (Test-Path fzf.exe)) {
+    $binary_error="Failed to download $file"
+    return
+  }
+  echo y | icacls $fzf_base\bin\fzf.exe /grant Administrator:F ; check_binary >$null
+}
+
+download "fzf-$version-windows_amd64.zip"
+
+Write-Host 'For more information, see: https://github.com/junegunn/fzf'

main.go

@@ -1,9 +1,14 @@
 package main
 
-import "github.com/junegunn/fzf/src"
+import (
+	"github.com/junegunn/fzf/src"
+	"github.com/junegunn/fzf/src/protector"
+)
 
-var revision string
+var version string = "0.27"
+var revision string = "devel"
 
 func main() {
-	fzf.Run(fzf.ParseOptions(), revision)
+	protector.Protect()
+	fzf.Run(fzf.ParseOptions(), version, revision)
 }

man/man1/fzf-tmux.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -21,25 +21,39 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf-tmux 1 "Oct 2017" "fzf 0.17.1" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Apr 2021" "fzf 0.27.0" "fzf-tmux - open fzf in tmux split pane"
 
 .SH NAME
 fzf-tmux - open fzf in tmux split pane
 
 .SH SYNOPSIS
-.B fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+.B fzf-tmux [LAYOUT OPTIONS] [--] [FZF OPTIONS]
 
 .SH DESCRIPTION
-fzf-tmux is a wrapper script for fzf that opens fzf in a tmux split pane. It is
-designed to work just like fzf except that it does not take up the whole
-screen. You can safely use fzf-tmux instead of fzf in your scripts as the extra
-options will be silently ignored if you're not on tmux.
+fzf-tmux is a wrapper script for fzf that opens fzf in a tmux split pane or in
+a tmux popup window. It is designed to work just like fzf except that it does
+not take up the whole screen. You can safely use fzf-tmux instead of fzf in
+your scripts as the extra options will be silently ignored if you're not on
+tmux.
 
-.SH OPTIONS
-.SS Layout
+.SH LAYOUT OPTIONS
 
-(default: \fB-d 50%\fR)
+(default layout: \fB-d 50%\fR)
 
+.SS Popup window
+(requires tmux 3.2 or above)
+.TP
+.B "-p [WIDTH[%][,HEIGHT[%]]]"
+.TP
+.B "-w WIDTH[%]"
+.TP
+.B "-h WIDTH[%]"
+.TP
+.B "-x COL"
+.TP
+.B "-y ROW"
+
+.SS Split pane
 .TP
 .B "-u [height[%]]"
 Split above (up)

man/man1/fzf.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Oct 2017" "fzf 0.17.1" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Apr 2021" "fzf 0.27.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -70,6 +70,11 @@ Transform the presentation of each line using field index expressions
 .TP
 .BI "-d, --delimiter=" "STR"
 Field delimiter regex for \fB--nth\fR and \fB--with-nth\fR (default: AWK-style)
+.TP
+.BI "--disabled"
+Do not perform search. With this option, fzf becomes a simple selector
+interface rather than a "fuzzy finder". You can later enable the search using
+\fBenable-search\fR or \fBtoggle-search\fR action.
 .SS Search result
 .TP
 .B "+s, --no-sort"
@@ -79,7 +84,8 @@ Do not sort the result
 Reverse the order of the input
 
 .RS
-e.g. \fBhistory | fzf --tac --no-sort\fR
+e.g.
+     \fBhistory | fzf --tac --no-sort\fR
 .RE
 .TP
 .BI "--tiebreak=" "CRI[,..]"
@@ -109,7 +115,8 @@ Comma-separated list of sort criteria to apply when the scores are tied.
 .SS Interface
 .TP
 .B "-m, --multi"
-Enable multi-select with tab/shift-tab
+Enable multi-select with tab/shift-tab. It optionally takes an integer argument
+which denotes the maximum number of items that can be selected.
 .TP
 .B "+m, --no-multi"
 Disable multi-select
@@ -118,12 +125,16 @@ Disable multi-select
 Disable mouse
 .TP
 .BI "--bind=" "KEYBINDS"
-Comma-separated list of custom key bindings. See \fBKEY BINDINGS\fR for the
-details.
+Comma-separated list of custom key bindings. See \fBKEY/EVENT BINDINGS\fR for
+the details.
 .TP
 .B "--cycle"
 Enable cyclic scroll
 .TP
+.B "--keep-right"
+Keep the right end of the line visible when it's too long. Effective only when
+the query string is empty.
+.TP
 .B "--no-hscroll"
 Disable horizontal scroll
 .TP
@@ -156,11 +167,49 @@ the full screen.
 Minimum height when \fB--height\fR is given in percent (default: 10).
 Ignored when \fB--height\fR is not specified.
 .TP
-.B "--reverse"
-Reverse orientation
+.BI "--layout=" "LAYOUT"
+Choose the layout (default: default)
+
+.br
+.BR default "       Display from the bottom of the screen"
+.br
+.BR reverse "       Display from the top of the screen"
+.br
+.BR reverse-list "  Display from the top of the screen, prompt at the bottom"
+.br
+
 .TP
-.B "--border"
-Draw border above and below the finder
+.B "--reverse"
+A synonym for \fB--layout=reverse\fB
+
+.TP
+.BI "--border" [=STYLE]
+Draw border around the finder
+
+.br
+.BR rounded "     Border with rounded corners (default)"
+.br
+.BR sharp "       Border with sharp corners"
+.br
+.BR horizontal "  Horizontal lines above and below the finder"
+.br
+.BR vertical "    Vertical lines on each side of the finder"
+.br
+.BR top
+.br
+.BR bottom
+.br
+.BR left
+.br
+.BR right
+.br
+.BR none
+.br
+
+.TP
+.B "--no-unicode"
+Use ASCII characters instead of Unicode box drawing characters to draw border
+
 .TP
 .BI "--margin=" MARGIN
 Comma-separated expression for margins around the finder.
@@ -183,19 +232,62 @@ terminal size with \fB%\fR suffix.
 .br
 
 .br
-e.g. \fBfzf --margin 10%\fR
-     \fBfzf --margin 1,5%\fR
+e.g.
+     \fBfzf --margin 10%
+     fzf --margin 1,5%\fR
 .RE
 .TP
-.B "--inline-info"
-Display finder info inline with the query
+.BI "--padding=" PADDING
+Comma-separated expression for padding inside the border. Padding is
+distinguishable from margin only when \fB--border\fR option is used.
+.br
+
+.br
+e.g.
+     \fBfzf --margin 5% --padding 5% --border --preview 'cat {}' \\
+         --color bg:#222222,preview-bg:#333333\fR
+
+.br
+.RS
+.BR TRBL "     Same padding for top, right, bottom, and left"
+.br
+.BR TB,RL "    Vertical, horizontal padding"
+.br
+.BR T,RL,B "   Top, horizontal, bottom padding"
+.br
+.BR T,R,B,L "  Top, right, bottom, left padding"
+.br
+.RE
+
+.TP
+.BI "--info=" "STYLE"
+Determines the display style of finder info.
+
+.br
+.BR default "       Display on the next line to the prompt"
+.br
+.BR inline "        Display on the same line"
+.br
+.BR hidden "        Do not display finder info"
+.br
+
+.TP
+.B "--no-info"
+A synonym for \fB--info=hidden\fB
+
 .TP
 .BI "--prompt=" "STR"
 Input prompt (default: '> ')
 .TP
+.BI "--pointer=" "STR"
+Pointer to the current line (default: '>')
+.TP
+.BI "--marker=" "STR"
+Multi-select marker (default: '>')
+.TP
 .BI "--header=" "STR"
 The given string will be printed as the sticky header. The lines are displayed
-in the given order from top to bottom regardless of \fB--reverse\fR option, and
+in the given order from top to bottom regardless of \fB--layout\fR option, and
 are not affected by \fB--with-nth\fR. ANSI color codes are processed even when
 \fB--ansi\fR is not set.
 .TP
@@ -211,16 +303,9 @@ Enable processing of ANSI color codes
 .BI "--tabstop=" SPACES
 Number of spaces for a tab character (default: 8)
 .TP
-.BI "--color=" "[BASE_SCHEME][,COLOR:ANSI]"
+.BI "--color=" "[BASE_SCHEME][,COLOR_NAME[:ANSI_COLOR][:ANSI_ATTRIBUTES]]..."
 Color configuration. The name of the base color scheme is followed by custom
-color mappings. Ansi color code of -1 denotes terminal default
-foreground/background color. You can also specify 24-bit color in \fB#rrggbb\fR
-format.
-
-.RS
-e.g. \fBfzf --color=bg+:24\fR
-     \fBfzf --color=light,fg:232,bg:255,bg+:116,info:27\fR
-.RE
+color mappings.
 
 .RS
 .B BASE SCHEME:
@@ -229,22 +314,55 @@ e.g. \fBfzf --color=bg+:24\fR
     \fBdark    \fRColor scheme for dark 256-color terminal
     \fBlight   \fRColor scheme for light 256-color terminal
     \fB16      \fRColor scheme for 16-color terminal
-    \fBbw      \fRNo colors
+    \fBbw      \fRNo colors (equivalent to \fB--no-color\fR)
 
-.B COLOR:
-    \fBfg      \fRText
-    \fBbg      \fRBackground
-    \fBhl      \fRHighlighted substrings
-    \fBfg+     \fRText (current line)
-    \fBbg+     \fRBackground (current line)
-    \fBhl+     \fRHighlighted substrings (current line)
-    \fBinfo    \fRInfo
-    \fBborder  \fRBorder of the preview window and horizontal separators (\fB--border\fR)
-    \fBprompt  \fRPrompt
-    \fBpointer \fRPointer to the current line
-    \fBmarker  \fRMulti-select marker
-    \fBspinner \fRStreaming input indicator
-    \fBheader  \fRHeader
+.B COLOR NAMES:
+    \fBfg         \fRText
+    \fBbg         \fRBackground
+    \fBpreview-fg \fRPreview window text
+    \fBpreview-bg \fRPreview window background
+    \fBhl         \fRHighlighted substrings
+    \fBfg+        \fRText (current line)
+    \fBbg+        \fRBackground (current line)
+    \fBgutter     \fRGutter on the left (defaults to \fBbg+\fR)
+    \fBhl+        \fRHighlighted substrings (current line)
+    \fBquery      \fRQuery string
+    \fBdisabled   \fRQuery string when search is disabled
+    \fBinfo       \fRInfo line (match counters)
+    \fBborder     \fRBorder around the window (\fB--border\fR and \fB--preview\fR)
+    \fBprompt     \fRPrompt
+    \fBpointer    \fRPointer to the current line
+    \fBmarker     \fRMulti-select marker
+    \fBspinner    \fRStreaming input indicator
+    \fBheader     \fRHeader
+
+.B ANSI COLORS:
+    \fB-1         \fRDefault terminal foreground/background color
+    \fB           \fR(or the original color of the text)
+    \fB0 ~ 15     \fR16 base colors
+    \fB16 ~ 255   \fRANSI 256 colors
+    \fB#rrggbb    \fR24-bit colors
+
+.B ANSI ATTRIBUTES: (Only applies to foreground colors)
+    \fBregular    \fRClears previously set attributes; should precede the other ones
+    \fBbold\fR
+    \fBunderline\fR
+    \fBreverse\fR
+    \fBdim\fR
+    \fBitalic\fR
+
+.B EXAMPLES:
+
+     \fB# Seoul256 theme with 8-bit colors
+     # (https://github.com/junegunn/seoul256.vim)
+     fzf --color='bg:237,bg+:236,info:143,border:240,spinner:108' \\
+         --color='hl:65,fg:252,header:65,fg+:252' \\
+         --color='pointer:161,marker:168,prompt:110,hl+:108'
+
+     # Seoul256 theme with 24-bit colors
+     fzf --color='bg:#4B4B4B,bg+:#3F3F3F,info:#BDBB72,border:#6B6B6B,spinner:#98BC99' \\
+         --color='hl:#719872,fg:#D9D9D9,header:#719872,fg+:#D9D9D9' \\
+         --color='pointer:#E12672,marker:#E17899,prompt:#98BEDE,hl+:#98BC99'\fR
 .RE
 .TP
 .B "--no-bold"
@@ -272,29 +390,61 @@ string, specify field index expressions between the braces (See \fBFIELD INDEX
 EXPRESSION\fR for the details).
 
 .RS
-e.g. \fBfzf --preview="head -$LINES {}"\fR
-     \fBls -l | fzf --preview="echo user={3} when={-4..-2}; cat {-1}" --header-lines=1\fR
+e.g.
+     \fBfzf --preview='head -$LINES {}'
+     ls -l | fzf --preview="echo user={3} when={-4..-2}; cat {-1}" --header-lines=1\fR
+
+fzf exports \fB$FZF_PREVIEW_LINES\fR and \fB$FZF_PREVIEW_COLUMNS\fR so that
+they represent the exact size of the preview window. (It also overrides
+\fB$LINES\fR and \fB$COLUMNS\fR with the same values but they can be reset
+by the default shell, so prefer to refer to the ones with \fBFZF_PREVIEW_\fR
+prefix.)
 
 A placeholder expression starting with \fB+\fR flag will be replaced to the
 space-separated list of the selected lines (or the current line if no selection
 was made) individually quoted.
 
-e.g. \fBfzf --multi --preview="head -10 {+}"\fR
-     \fBgit log --oneline | fzf --multi --preview 'git show {+1}'\fR
+e.g.
+     \fBfzf --multi --preview='head -10 {+}'
+     git log --oneline | fzf --multi --preview 'git show {+1}'\fR
 
-Also, \fB{q}\fR is replaced to the current query string.
+When using a field index expression, leading and trailing whitespace is stripped
+from the replacement string. To preserve the whitespace, use the \fBs\fR flag.
+
+Also, \fB{q}\fR is replaced to the current query string, and \fB{n}\fR is
+replaced to zero-based ordinal index of the line. Use \fB{+n}\fR if you want
+all index numbers when multiple lines are selected.
+
+A placeholder expression with \fBf\fR flag is replaced to the path of
+a temporary file that holds the evaluated list. This is useful when you
+multi-select a large number of items and the length of the evaluated string may
+exceed \fBARG_MAX\fR.
+
+e.g.
+     \fB# Press CTRL-A to select 100K items and see the sum of all the numbers.
+     # This won't work properly without 'f' flag due to ARG_MAX limit.
+     seq 100000 | fzf --multi --bind ctrl-a:select-all \\
+                      --preview "awk '{sum+=\$1} END {print sum}' {+f}"\fR
 
 Note that you can escape a placeholder pattern by prepending a backslash.
+
+Preview window will be updated even when there is no match for the current
+query if any of the placeholder expressions evaluates to a non-empty string.
+
+Since 0.24.0, fzf can render partial preview content before the preview command
+completes. ANSI escape sequence for clearing the display (\fBCSI 2 J\fR) is
+supported, so you can use it to implement preview window that is constantly
+updating.
+
+e.g.
+      \fBfzf --preview 'for i in $(seq 100000); do
+        (( i % 200 == 0 )) && printf "\\033[2J"
+        echo "$i"
+        sleep 0.01
+      done'\fR
 .RE
 .TP
-.BI "--preview-window=" "[POSITION][:SIZE[%]][:wrap][:hidden]"
-Determine the layout of the preview window. If the argument ends with
-\fB:hidden\fR, the preview window will be hidden by default until
-\fBtoggle-preview\fR action is triggered. Long lines are truncated by default.
-Line wrap can be enabled with \fB:wrap\fR flag.
-
-If size is given as 0, preview window will not be visible, but fzf will still
-execute the command in the background.
+.BI "--preview-window=" "[POSITION][,SIZE[%]][,border-BORDER_OPT][,[no]wrap][,[no]follow][,[no]cycle][,[no]hidden][,+SCROLL[OFFSETS][/DENOM]][,~HEADER_LINES][,default]"
 
 .RS
 .B POSITION: (default: right)
@@ -302,12 +452,80 @@ execute the command in the background.
     \fBdown
     \fBleft
     \fBright
-.RE
+
+\fRDetermines the layout of the preview window.
+
+* If the argument contains \fB:hidden\fR, the preview window will be hidden by
+default until \fBtoggle-preview\fR action is triggered.
+
+* If size is given as 0, preview window will not be visible, but fzf will still
+execute the command in the background.
+
+* Long lines are truncated by default. Line wrap can be enabled with
+\fB:wrap\fR flag.
+
+* Preview window will automatically scroll to the bottom when \fB:follow\fR
+flag is set, similarly to how \fBtail -f\fR works.
 
 .RS
-e.g. \fBfzf --preview="head {}" --preview-window=up:30%\fR
-     \fBfzf --preview="file {}" --preview-window=down:1\fR
+e.g.
+      \fBfzf --preview-window follow --preview 'for i in $(seq 100000); do
+        echo "$i"
+        sleep 0.01
+        (( i % 300 == 0 )) && printf "\\033[2J"
+      done'\fR
 .RE
+
+* Cyclic scrolling is enabled with \fB:cycle\fR flag.
+
+* To change the style of the border of the preview window, specify one of
+the options for \fB--border\fR with \fBborder-\fR prefix.
+e.g. \fBborder-rounded\fR (border with rounded edges, default),
+\fBborder-sharp\fR (border with sharp edges), \fBborder-left\fR,
+\fBborder-none\fR, etc.
+
+* \fB[:+SCROLL[OFFSETS][/DENOM]]\fR determines the initial scroll offset of the
+preview window.
+
+  - \fBSCROLL\fR can be either a numeric integer or a single-field index expression that refers to a numeric integer.
+
+  - The optional \fBOFFSETS\fR part is for adjusting the base offset. It should be given as a series of signed integers (\fB-INTEGER\fR or \fB+INTEGER\fR).
+
+  - The final \fB/DENOM\fR part is for specifying a fraction of the preview window height.
+
+* \fB~HEADER_LINES\fR keeps the top N lines as the fixed header so that they
+are always visible.
+
+* \fBdefault\fR resets all options previously set to the default.
+
+.RS
+e.g.
+     \fB# Non-default scroll window positions and sizes
+     fzf --preview="head {}" --preview-window=up,30%
+     fzf --preview="file {}" --preview-window=down,1
+
+     # Initial scroll offset is set to the line number of each line of
+     # git grep output *minus* 5 lines (-5)
+     git grep --line-number '' |
+       fzf --delimiter : --preview 'nl {1}' --preview-window '+{2}-5'
+
+     # Preview with bat, matching line in the middle of the window below
+     # the fixed header of the top 3 lines
+     #
+     #   ~3    Top 3 lines as the fixed header
+     #   +{2}  Base scroll offset extracted from the second field
+     #   +3    Extra offset to compensate for the 3-line header
+     #   /2    Put in the middle of the preview area
+     #
+     git grep --line-number '' |
+       fzf --delimiter : \\
+           --preview 'bat --style=full --color=always --highlight-line {2} {1}' \\
+           --preview-window '~3,+{2}+3/2'
+
+     # Display top 3 lines as the fixed header
+     fzf --preview 'bat --style=full --color=always {}' --preview-window '~3'\fR
+.RE
+
 .SS Scripting
 .TP
 .BI "-q, --query=" "STR"
@@ -336,7 +554,8 @@ times, fzf will expect the union of the keys. \fB--no-expect\fR will clear the
 list.
 
 .RS
-e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s --expect=f1,f2,~,@\fR
+e.g.
+     \fBfzf --expect=ctrl-v,ctrl-t,alt-s --expect=f1,f2,~,@\fR
 .RE
 .TP
 .B "--read0"
@@ -368,7 +587,9 @@ Note that most options have the opposite versions with \fB--no-\fR prefix.
 .SH ENVIRONMENT VARIABLES
 .TP
 .B FZF_DEFAULT_COMMAND
-Default command to use when input is tty
+Default command to use when input is tty. On *nix systems, fzf runs the command
+with \fB$SHELL -c\fR if \fBSHELL\fR is set, otherwise with \fBsh -c\fR, so in
+this case make sure that the command is POSIX-compliant.
 .TP
 .B FZF_DEFAULT_OPTS
 Default options. e.g. \fBexport FZF_DEFAULT_OPTS="--extended --cycle"\fR
@@ -441,104 +662,240 @@ query matches entries that start with \fBcore\fR and end with either \fBgo\fR,
 
 e.g. \fB^core go$ | rb$ | py$\fR
 
-.SH KEY BINDINGS
-You can customize key bindings of fzf with \fB--bind\fR option which takes
-a comma-separated list of key binding expressions. Each key binding expression
-follows the following format: \fBKEY:ACTION\fR
+.SH KEY/EVENT BINDINGS
+\fB--bind\fR option allows you to bind \fBa key\fR or \fBan event\fR to one or
+more \fBactions\fR. You can use it to customize key bindings or implement
+dynamic behaviors.
 
-e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
+\fB--bind\fR takes a comma-separated list of binding expressions. Each binding
+expression is \fBKEY:ACTION\fR or \fBEVENT:ACTION\fR.
 
-.B AVAILABLE KEYS:    (SYNONYMS)
-    \fIctrl-[a-z]\fR
-    \fIctrl-space\fR
-    \fIctrl-alt-[a-z]\fR
-    \fIalt-[a-z]\fR
-    \fIalt-[0-9]\fR
-    \fIf[1-12]\fR
-    \fIenter\fR       (\fIreturn\fR \fIctrl-m\fR)
-    \fIspace\fR
-    \fIbspace\fR      (\fIbs\fR)
-    \fIalt-enter\fR
-    \fIalt-space\fR
-    \fIalt-bspace\fR  (\fIalt-bs\fR)
-    \fIalt-/\fR
-    \fItab\fR
-    \fIbtab\fR        (\fIshift-tab\fR)
-    \fIesc\fR
-    \fIdel\fR
-    \fIup\fR
-    \fIdown\fR
-    \fIleft\fR
-    \fIright\fR
-    \fIhome\fR
-    \fIend\fR
-    \fIpgup\fR        (\fIpage-up\fR)
-    \fIpgdn\fR        (\fIpage-down\fR)
-    \fIshift-left\fR
-    \fIshift-right\fR
-    \fIdouble-click\fR
-    or any single character
+e.g.
+     \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
 
-Additionally, a special event named \fIchange\fR is available which is
-triggered whenever the query string is changed.
+.SS AVAILABLE KEYS:    (SYNONYMS)
+\fIctrl-[a-z]\fR
+.br
+\fIctrl-space\fR
+.br
+\fIctrl-\\\fR
+.br
+\fIctrl-]\fR
+.br
+\fIctrl-^\fR      (\fIctrl-6\fR)
+.br
+\fIctrl-/\fR      (\fIctrl-_\fR)
+.br
+\fIctrl-alt-[a-z]\fR
+.br
+\fIalt-[*]\fR     (Any case-sensitive single character is allowed)
+.br
+\fIf[1-12]\fR
+.br
+\fIenter\fR       (\fIreturn\fR \fIctrl-m\fR)
+.br
+\fIspace\fR
+.br
+\fIbspace\fR      (\fIbs\fR)
+.br
+\fIalt-up\fR
+.br
+\fIalt-down\fR
+.br
+\fIalt-left\fR
+.br
+\fIalt-right\fR
+.br
+\fIalt-enter\fR
+.br
+\fIalt-space\fR
+.br
+\fIalt-bspace\fR  (\fIalt-bs\fR)
+.br
+\fItab\fR
+.br
+\fIbtab\fR        (\fIshift-tab\fR)
+.br
+\fIesc\fR
+.br
+\fIdel\fR
+.br
+\fIup\fR
+.br
+\fIdown\fR
+.br
+\fIleft\fR
+.br
+\fIright\fR
+.br
+\fIhome\fR
+.br
+\fIend\fR
+.br
+\fIinsert\fR
+.br
+\fIpgup\fR        (\fIpage-up\fR)
+.br
+\fIpgdn\fR        (\fIpage-down\fR)
+.br
+\fIshift-up\fR
+.br
+\fIshift-down\fR
+.br
+\fIshift-left\fR
+.br
+\fIshift-right\fR
+.br
+\fIalt-shift-up\fR
+.br
+\fIalt-shift-down\fR
+.br
+\fIalt-shift-left\fR
+.br
+\fIalt-shift-right\fR
+.br
+\fIleft-click\fR
+.br
+\fIright-click\fR
+.br
+\fIdouble-click\fR
+.br
+or any single character
 
-    e.g. \fBfzf --bind change:top\fR
+.SS AVAILABLE EVENTS:
+\fIchange\fR
+.RS
+Triggered whenever the query string is changed
 
-  \fBACTION:               DEFAULT BINDINGS (NOTES):
-    \fBabort\fR                 \fIctrl-c  ctrl-g  ctrl-q  esc\fR
-    \fBaccept\fR                \fIenter   double-click\fR
-    \fBbackward-char\fR         \fIctrl-b  left\fR
-    \fBbackward-delete-char\fR  \fIctrl-h  bspace\fR
-    \fBbackward-kill-word\fR    \fIalt-bs\fR
-    \fBbackward-word\fR         \fIalt-b   shift-left\fR
-    \fBbeginning-of-line\fR     \fIctrl-a  home\fR
-    \fBcancel\fR
-    \fBclear-screen\fR          \fIctrl-l\fR
-    \fBdelete-char\fR           \fIdel\fR
-    \fBdelete-char/eof\fR       \fIctrl-d\fR
-    \fBdeselect-all\fR
-    \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
-    \fBend-of-line\fR           \fIctrl-e  end\fR
-    \fBexecute(...)\fR          (see below for the details)
-    \fBexecute-silent(...)\fR   (see below for the details)
-    \fRexecute-multi(...)\fR    (deprecated in favor of \fB{+}\fR expression)
-    \fBforward-char\fR          \fIctrl-f  right\fR
-    \fBforward-word\fR          \fIalt-f   shift-right\fR
+e.g.
+     \fB# Move cursor to the first entry whenever the query is changed
+     fzf --bind change:first\fR
+.RE
+
+\fIbackward-eof\fR
+.RS
+Triggered when the query string is already empty and you try to delete it
+backward.
+
+e.g.
+     \fBfzf --bind backward-eof:abort\fR
+.RE
+
+.SS AVAILABLE ACTIONS:
+A key or an event can be bound to one or more of the following actions.
+
+  \fBACTION:                   DEFAULT BINDINGS (NOTES):
+    \fBabort\fR                     \fIctrl-c  ctrl-g  ctrl-q  esc\fR
+    \fBaccept\fR                    \fIenter   double-click\fR
+    \fBaccept-non-empty\fR          (same as \fBaccept\fR except that it prevents fzf from exiting without selection)
+    \fBbackward-char\fR             \fIctrl-b  left\fR
+    \fBbackward-delete-char\fR      \fIctrl-h  bspace\fR
+    \fBbackward-delete-char/eof\fR  (same as \fBbackward-delete-char\fR except aborts fzf if query is empty)
+    \fBbackward-kill-word\fR        \fIalt-bs\fR
+    \fBbackward-word\fR             \fIalt-b   shift-left\fR
+    \fBbeginning-of-line\fR         \fIctrl-a  home\fR
+    \fBcancel\fR                    (clear query string if not empty, abort fzf otherwise)
+    \fBchange-prompt(...)\fR        (change prompt to the given string)
+    \fBclear-screen\fR              \fIctrl-l\fR
+    \fBclear-selection\fR           (clear multi-selection)
+    \fBclose\fR                     (close preview window if open, abort fzf otherwise)
+    \fBclear-query\fR               (clear query string)
+    \fBdelete-char\fR               \fIdel\fR
+    \fBdelete-char/eof\fR           \fIctrl-d\fR (same as \fBdelete-char\fR except aborts fzf if query is empty)
+    \fBdeselect\fR
+    \fBdeselect-all\fR              (deselect all matches)
+    \fBdisable-search\fR            (disable search functionality)
+    \fBdown\fR                      \fIctrl-j  ctrl-n  down\fR
+    \fBenable-search\fR             (enable search functionality)
+    \fBend-of-line\fR               \fIctrl-e  end\fR
+    \fBexecute(...)\fR              (see below for the details)
+    \fBexecute-silent(...)\fR       (see below for the details)
+    \fBfirst\fR                     (move to the first match)
+    \fBforward-char\fR              \fIctrl-f  right\fR
+    \fBforward-word\fR              \fIalt-f   shift-right\fR
     \fBignore\fR
-    \fBjump\fR                  (EasyMotion-like 2-keystroke movement)
-    \fBjump-accept\fR           (jump and accept)
+    \fBjump\fR                      (EasyMotion-like 2-keystroke movement)
+    \fBjump-accept\fR               (jump and accept)
     \fBkill-line\fR
-    \fBkill-word\fR             \fIalt-d\fR
-    \fBnext-history\fR          (\fIctrl-n\fR on \fB--history\fR)
-    \fBpage-down\fR             \fIpgdn\fR
-    \fBpage-up\fR               \fIpgup\fR
+    \fBkill-word\fR                 \fIalt-d\fR
+    \fBlast\fR                      (move to the last match)
+    \fBnext-history\fR              (\fIctrl-n\fR on \fB--history\fR)
+    \fBpage-down\fR                 \fIpgdn\fR
+    \fBpage-up\fR                   \fIpgup\fR
     \fBhalf-page-down\fR
     \fBhalf-page-up\fR
-    \fBpreview-down\fR
-    \fBpreview-up\fR
+    \fBpreview(...)\fR              (see below for the details)
+    \fBpreview-down\fR              \fIshift-down\fR
+    \fBpreview-up\fR                \fIshift-up\fR
     \fBpreview-page-down\fR
     \fBpreview-page-up\fR
-    \fBprevious-history\fR      (\fIctrl-p\fR on \fB--history\fR)
-    \fBprint-query\fR           (print query and exit)
-    \fBselect-all\fR
-    \fBtoggle\fR
-    \fBtoggle-all\fR
-    \fBtoggle+down\fR           \fIctrl-i  (tab)\fR
-    \fBtoggle-in\fR             (\fB--reverse\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
-    \fBtoggle-out\fR            (\fB--reverse\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
+    \fBpreview-half-page-down\fR
+    \fBpreview-half-page-up\fR
+    \fBpreview-bottom\fR
+    \fBpreview-top\fR
+    \fBprevious-history\fR          (\fIctrl-p\fR on \fB--history\fR)
+    \fBprint-query\fR               (print query and exit)
+    \fBrefresh-preview\fR
+    \fBreload(...)\fR               (see below for the details)
+    \fBreplace-query\fR             (replace query string with the current selection)
+    \fBselect\fR
+    \fBselect-all\fR                (select all matches)
+    \fBtoggle\fR                    (\fIright-click\fR)
+    \fBtoggle-all\fR                (toggle all matches)
+    \fBtoggle+down\fR               \fIctrl-i  (tab)\fR
+    \fBtoggle-in\fR                 (\fB--layout=reverse*\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
+    \fBtoggle-out\fR                (\fB--layout=reverse*\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
     \fBtoggle-preview\fR
     \fBtoggle-preview-wrap\fR
+    \fBtoggle-search\fR             (toggle search functionality)
     \fBtoggle-sort\fR
-    \fBtoggle+up\fR             \fIbtab    (shift-tab)\fR
-    \fBtop\fR                   (move to the top result)
-    \fBunix-line-discard\fR     \fIctrl-u\fR
-    \fBunix-word-rubout\fR      \fIctrl-w\fR
-    \fBup\fR                    \fIctrl-k  ctrl-p  up\fR
-    \fByank\fR                  \fIctrl-y\fR
+    \fBtoggle+up\fR                 \fIbtab    (shift-tab)\fR
+    \fBunix-line-discard\fR         \fIctrl-u\fR
+    \fBunix-word-rubout\fR          \fIctrl-w\fR
+    \fBup\fR                        \fIctrl-k  ctrl-p  up\fR
+    \fByank\fR                      \fIctrl-y\fR
+
+.SS ACTION COMPOSITION
 
 Multiple actions can be chained using \fB+\fR separator.
 
-    \fBfzf --bind 'ctrl-a:select-all+accept'\fR
+e.g.
+     \fBfzf --multi --bind 'ctrl-a:select-all+accept'\fR
+     \fBfzf --multi --bind 'ctrl-a:select-all' --bind 'ctrl-a:+accept'\fR
+
+.SS ACTION ARGUMENT
+
+An action denoted with \fB(...)\fR suffix takes an argument.
+
+e.g.
+     \fBfzf --bind 'ctrl-a:change-prompt(NewPrompt> )'\fR
+     \fBfzf --bind 'ctrl-v:preview(cat {})' --preview-window hidden\fR
+
+If the argument contains parentheses, fzf may fail to parse the expression. In
+that case, you can use any of the following alternative notations to avoid
+parse errors.
+
+    \fBaction-name[...]\fR
+    \fBaction-name~...~\fR
+    \fBaction-name!...!\fR
+    \fBaction-name@...@\fR
+    \fBaction-name#...#\fR
+    \fBaction-name$...$\fR
+    \fBaction-name%...%\fR
+    \fBaction-name^...^\fR
+    \fBaction-name&...&\fR
+    \fBaction-name*...*\fR
+    \fBaction-name;...;\fR
+    \fBaction-name/.../\fR
+    \fBaction-name|...|\fR
+    \fBaction-name:...\fR
+.RS
+The last one is the special form that frees you from parse errors as it does
+not expect the closing character. The catch is that it should be the last one
+in the comma-separated list of key-action pairs.
+.RE
+
+.SS COMMAND EXECUTION
 
 With \fBexecute(...)\fR action, you can execute arbitrary commands without
 leaving fzf. For example, you can turn fzf into a simple file browser by
@@ -548,37 +905,55 @@ binding \fBenter\fR key to \fBless\fR command like follows.
 
 You can use the same placeholder expressions as in \fB--preview\fR.
 
-If the command contains parentheses, fzf may fail to parse the expression. In
-that case, you can use any of the following alternative notations to avoid
-parse errors.
-
-    \fBexecute[...]\fR
-    \fBexecute~...~\fR
-    \fBexecute!...!\fR
-    \fBexecute@...@\fR
-    \fBexecute#...#\fR
-    \fBexecute$...$\fR
-    \fBexecute%...%\fR
-    \fBexecute^...^\fR
-    \fBexecute&...&\fR
-    \fBexecute*...*\fR
-    \fBexecute;...;\fR
-    \fBexecute/.../\fR
-    \fBexecute|...|\fR
-    \fBexecute:...\fR
-.RS
-This is the special form that frees you from parse errors as it does not expect
-the closing character. The catch is that it should be the last one in the
-comma-separated list of key-action pairs.
-.RE
-
 fzf switches to the alternate screen when executing a command. However, if the
 command is expected to complete quickly, and you are not interested in its
 output, you might want to use \fBexecute-silent\fR instead, which silently
 executes the command without the switching. Note that fzf will not be
-responsible until the command is complete. For asynchronous execution, start
+responsive until the command is complete. For asynchronous execution, start
 your command as a background process (i.e. appending \fB&\fR).
 
+On *nix systems, fzf runs the command with \fB$SHELL -c\fR if \fBSHELL\fR is
+set, otherwise with \fBsh -c\fR, so in this case make sure that the command is
+POSIX-compliant.
+
+.SS RELOAD INPUT
+
+\fBreload(...)\fR action is used to dynamically update the input list
+without restarting fzf. It takes the same command template with placeholder
+expressions as \fBexecute(...)\fR.
+
+See \fIhttps://github.com/junegunn/fzf/issues/1750\fR for more info.
+
+e.g.
+     \fB# Update the list of processes by pressing CTRL-R
+     ps -ef | fzf --bind 'ctrl-r:reload(ps -ef)' --header 'Press CTRL-R to reload' \\
+                  --header-lines=1 --layout=reverse
+
+     # Integration with ripgrep
+     RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+     INITIAL_QUERY="foobar"
+     FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY'" \\
+       fzf --bind "change:reload:$RG_PREFIX {q} || true" \\
+           --ansi --disabled --query "$INITIAL_QUERY"\fR
+
+.SS PREVIEW BINDING
+
+With \fBpreview(...)\fR action, you can specify multiple different preview
+commands in addition to the default preview command given by \fB--preview\fR
+option.
+
+e.g.
+
+     # Default preview command with an extra preview binding
+     fzf --preview 'file {}' --bind '?:preview:cat {}'
+
+     # A preview binding with no default preview command
+     # (Preview window is initially empty)
+     fzf --bind '?:preview:cat {}'
+
+     # Preview window hidden by default, it appears when you first hit '?'
+     fzf --bind '?:preview:cat {}' --preview-window hidden
+
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
 

plugin/fzf.vim

@@ -49,10 +49,23 @@ if s:is_win
 
   " Use utf-8 for fzf.vim commands
   " Return array of shell commands for cmd.exe
+  function! s:enc_to_cp(str)
+    if !has('iconv')
+      return a:str
+    endif
+    if !exists('s:codepage')
+      let s:codepage = libcallnr('kernel32.dll', 'GetACP', 0)
+    endif
+    return iconv(a:str, &encoding, 'cp'.s:codepage)
+  endfunction
   function! s:wrap_cmds(cmds)
-    return ['@echo off', 'for /f "tokens=4" %%a in (''chcp'') do set origchcp=%%a', 'chcp 65001 > nul'] +
-          \ (type(a:cmds) == type([]) ? a:cmds : [a:cmds]) +
-          \ ['chcp %origchcp% > nul']
+    return map([
+      \ '@echo off',
+      \ 'setlocal enabledelayedexpansion']
+    \ + (has('gui_running') ? ['set TERM= > nul'] : [])
+    \ + (type(a:cmds) == type([]) ? a:cmds : [a:cmds])
+    \ + ['endlocal'],
+    \ '<SID>enc_to_cp(v:val."\r")')
   endfunction
 else
   let s:term_marker = ";#FZF"
@@ -64,6 +77,10 @@ else
   function! s:wrap_cmds(cmds)
     return a:cmds
   endfunction
+
+  function! s:enc_to_cp(str)
+    return a:str
+  endfunction
 endif
 
 function! s:shellesc_cmd(arg)
@@ -75,7 +92,7 @@ function! s:shellesc_cmd(arg)
 endfunction
 
 function! fzf#shellescape(arg, ...)
-  let shell = get(a:000, 0, &shell)
+  let shell = get(a:000, 0, s:is_win ? 'cmd.exe' : 'sh')
   if shell =~# 'cmd.exe$'
     return s:shellesc_cmd(a:arg)
   endif
@@ -98,45 +115,131 @@ function! s:fzf_tempname()
   return s:fzf_call('tempname')
 endfunction
 
-let s:default_layout = { 'down': '~40%' }
-let s:layout_keys = ['window', 'up', 'down', 'left', 'right']
+let s:layout_keys = ['window', 'tmux', 'up', 'down', 'left', 'right']
 let s:fzf_go = s:base_dir.'/bin/fzf'
 let s:fzf_tmux = s:base_dir.'/bin/fzf-tmux'
-let s:install = s:base_dir.'/install'
-let s:installed = 0
 
 let s:cpo_save = &cpo
 set cpo&vim
 
-function! s:fzf_exec()
+function! s:popup_support()
+  return has('nvim') ? has('nvim-0.4') : has('popupwin') && has('patch-8.2.191')
+endfunction
+
+function! s:default_layout()
+  return s:popup_support()
+        \ ? { 'window' : { 'width': 0.9, 'height': 0.6 } }
+        \ : { 'down': '~40%' }
+endfunction
+
+function! fzf#install()
+  if s:is_win && !has('win32unix')
+    let script = s:base_dir.'/install.ps1'
+    if !filereadable(script)
+      throw script.' not found'
+    endif
+    let script = 'powershell -ExecutionPolicy Bypass -file ' . script
+  else
+    let script = s:base_dir.'/install'
+    if !executable(script)
+      throw script.' not found'
+    endif
+    let script .= ' --bin'
+  endif
+
+  call s:warn('Running fzf installer ...')
+  call system(script)
+  if v:shell_error
+    throw 'Failed to download fzf: '.script
+  endif
+endfunction
+
+let s:versions = {}
+function s:get_version(bin)
+  if has_key(s:versions, a:bin)
+    return s:versions[a:bin]
+  end
+  let command = a:bin . ' --version'
+  let output = systemlist(command)
+  if v:shell_error || empty(output)
+    return ''
+  endif
+  let ver = matchstr(output[-1], '[0-9.]\+')
+  let s:versions[a:bin] = ver
+  return ver
+endfunction
+
+function! s:compare_versions(a, b)
+  let a = split(a:a, '\.')
+  let b = split(a:b, '\.')
+  for idx in range(0, max([len(a), len(b)]) - 1)
+    let v1 = str2nr(get(a, idx, 0))
+    let v2 = str2nr(get(b, idx, 0))
+    if     v1 < v2 | return -1
+    elseif v1 > v2 | return 1
+    endif
+  endfor
+  return 0
+endfunction
+
+function! s:compare_binary_versions(a, b)
+  return s:compare_versions(s:get_version(a:a), s:get_version(a:b))
+endfunction
+
+let s:checked = {}
+function! fzf#exec(...)
   if !exists('s:exec')
+    let binaries = []
+    if executable('fzf')
+      call add(binaries, 'fzf')
+    endif
     if executable(s:fzf_go)
-      let s:exec = s:fzf_go
-    elseif executable('fzf')
-      let s:exec = 'fzf'
-    elseif s:is_win && !has('win32unix')
-      call s:warn('fzf executable not found.')
-      call s:warn('Download fzf binary for Windows from https://github.com/junegunn/fzf-bin/releases/')
-      call s:warn('and place it as '.s:base_dir.'\bin\fzf.exe')
-      throw 'fzf executable not found'
-    elseif !s:installed && executable(s:install) &&
-          \ input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
+      call add(binaries, s:fzf_go)
+    endif
+
+    if empty(binaries)
+      if input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
+        redraw
+        call fzf#install()
+        return fzf#exec()
+      else
+        redraw
+        throw 'fzf executable not found'
+      endif
+    elseif len(binaries) > 1
+      call sort(binaries, 's:compare_binary_versions')
+    endif
+
+    let s:exec = binaries[-1]
+  endif
+
+  if a:0 && !has_key(s:checked, a:1)
+    let fzf_version = s:get_version(s:exec)
+    if empty(fzf_version)
+      let message = printf('Failed to run "%s --version"', s:exec)
+      unlet s:exec
+      throw message
+    end
+
+    if s:compare_versions(fzf_version, a:1) >= 0
+      let s:checked[a:1] = 1
+      return s:exec
+    elseif a:0 < 2 && input(printf('You need fzf %s or above. Found: %s. Download binary? (y/n) ', a:1, fzf_version)) =~? '^y'
+      let s:versions = {}
+      unlet s:exec
       redraw
-      echo
-      call s:warn('Downloading fzf binary. Please wait ...')
-      let s:installed = 1
-      call system(s:install.' --bin')
-      return s:fzf_exec()
+      call fzf#install()
+      return fzf#exec(a:1, 1)
     else
-      redraw
-      throw 'fzf executable not found'
+      throw printf('You need to upgrade fzf (required: %s or above)', a:1)
     endif
   endif
-  return fzf#shellescape(s:exec)
+
+  return s:exec
 endfunction
 
 function! s:tmux_enabled()
-  if has('gui_running')
+  if has('gui_running') || !exists('$TMUX')
     return 0
   endif
 
@@ -145,10 +248,16 @@ function! s:tmux_enabled()
   endif
 
   let s:tmux = 0
-  if exists('$TMUX') && executable(s:fzf_tmux)
-    let output = system('tmux -V')
-    let s:tmux = !v:shell_error && output >= 'tmux 1.7'
+  if !executable(s:fzf_tmux)
+    if executable('fzf-tmux')
+      let s:fzf_tmux = 'fzf-tmux'
+    else
+      return 0
+    endif
   endif
+
+  let output = system('tmux -V')
+  let s:tmux = !v:shell_error && output >= 'tmux 1.7'
   return s:tmux
 endfunction
 
@@ -157,21 +266,6 @@ function! s:escape(path)
   return s:is_win ? escape(path, '$') : path
 endfunction
 
-" Upgrade legacy options
-function! s:upgrade(dict)
-  let copy = copy(a:dict)
-  if has_key(copy, 'tmux')
-    let copy.down = remove(copy, 'tmux')
-  endif
-  if has_key(copy, 'tmux_height')
-    let copy.down = remove(copy, 'tmux_height')
-  endif
-  if has_key(copy, 'tmux_width')
-    let copy.right = remove(copy, 'tmux_width')
-  endif
-  return copy
-endfunction
-
 function! s:error(msg)
   echohl ErrorMsg
   echom a:msg
@@ -217,9 +311,14 @@ function! s:common_sink(action, lines) abort
   endif
   try
     let empty = empty(s:fzf_expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
-    let autochdir = &autochdir
-    set noautochdir
+    " Preserve the current working directory in case it's changed during
+    " the execution (e.g. `set autochdir` or `autocmd BufEnter * lcd ...`)
+    let cwd = exists('w:fzf_pushd') ? w:fzf_pushd.dir : expand('%:p:h')
     for item in a:lines
+      if item[0] != '~' && item !~ (s:is_win ? '^[A-Z]:\' : '^/')
+        let sep = s:is_win ? '\' : '/'
+        let item = join([cwd, item], cwd[len(cwd)-1] == sep ? '' : sep)
+      endif
       if empty
         execute 'e' s:escape(item)
         let empty = 0
@@ -231,14 +330,14 @@ function! s:common_sink(action, lines) abort
         doautocmd BufEnter
       endif
     endfor
+  catch /^Vim:Interrupt$/
   finally
-    let &autochdir = autochdir
     silent! autocmd! fzf_swap
   endtry
 endfunction
 
 function! s:get_color(attr, ...)
-  let gui = has('termguicolors') && &termguicolors
+  let gui = !s:is_win && !has('win32unix') && has('termguicolors') && &termguicolors
   let fam = gui ? 'gui' : 'cterm'
   let pat = gui ? '^#[a-f0-9]\+' : '^[0-9]\+$'
   for group in a:000
@@ -253,7 +352,7 @@ endfunction
 function! s:defaults()
   let rules = copy(get(g:, 'fzf_colors', {}))
   let colors = join(map(items(filter(map(rules, 'call("s:get_color", v:val)'), '!empty(v:val)')), 'join(v:val, ":")'), ',')
-  return empty(colors) ? '' : ('--color='.colors)
+  return empty(colors) ? '' : fzf#shellescape('--color='.colors)
 endfunction
 
 function! s:validate_layout(layout)
@@ -277,7 +376,7 @@ function! fzf#wrap(...)
   let expects = map(copy(args), 'type(v:val)')
   let tidx = 0
   for arg in copy(a:000)
-    let tidx = index(expects, type(arg), tidx)
+    let tidx = index(expects, type(arg) == 6 ? type(0) : type(arg), tidx)
     if tidx < 0
       throw 'Invalid arguments (expected: [name string] [opts dict] [fullscreen boolean])'
     endif
@@ -302,7 +401,7 @@ function! fzf#wrap(...)
     if !exists('g:fzf_layout') && exists('g:fzf_height')
       let opts.down = g:fzf_height
     else
-      let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout)))
+      let opts = extend(opts, s:validate_layout(get(g:, 'fzf_layout', s:default_layout())))
     endif
   endif
 
@@ -333,42 +432,38 @@ function! fzf#wrap(...)
 endfunction
 
 function! s:use_sh()
-  let [shell, shellslash] = [&shell, &shellslash]
+  let [shell, shellslash, shellcmdflag, shellxquote] = [&shell, &shellslash, &shellcmdflag, &shellxquote]
   if s:is_win
     set shell=cmd.exe
     set noshellslash
+    let &shellcmdflag = has('nvim') ? '/s /c' : '/c'
+    let &shellxquote = has('nvim') ? '"' : '('
   else
     set shell=sh
   endif
-  return [shell, shellslash]
+  return [shell, shellslash, shellcmdflag, shellxquote]
 endfunction
 
 function! fzf#run(...) abort
 try
-  let [shell, shellslash] = s:use_sh()
+  let [shell, shellslash, shellcmdflag, shellxquote] = s:use_sh()
 
-  let dict   = exists('a:1') ? s:upgrade(a:1) : {}
+  let dict   = exists('a:1') ? copy(a:1) : {}
   let temps  = { 'result': s:fzf_tempname() }
   let optstr = s:evaluate_opts(get(dict, 'options', ''))
   try
-    let fzf_exec = s:fzf_exec()
+    let fzf_exec = fzf#shellescape(fzf#exec())
   catch
     throw v:exception
   endtry
 
-  if has('nvim') && !has_key(dict, 'dir')
+  if !s:present(dict, 'dir')
     let dict.dir = s:fzf_getcwd()
   endif
-  if has('win32unix') && has_key(dict, 'dir')
+  if has('win32unix') && s:present(dict, 'dir')
     let dict.dir = fnamemodify(dict.dir, ':p')
   endif
 
-  if !has_key(dict, 'source') && !empty($FZF_DEFAULT_COMMAND) && !s:is_win
-    let temps.source = s:fzf_tempname()
-    call writefile(s:wrap_cmds(split($FZF_DEFAULT_COMMAND, "\n")), temps.source)
-    let dict.source = (empty($SHELL) ? &shell : $SHELL).' '.fzf#shellescape(temps.source)
-  endif
-
   if has_key(dict, 'source')
     let source = dict.source
     let type = type(source)
@@ -385,15 +480,15 @@ try
     let prefix = ''
   endif
 
-  let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0)
+  let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0) || has_key(dict, 'tmux')
   let use_height = has_key(dict, 'down') && !has('gui_running') &&
         \ !(has('nvim') || s:is_win || has('win32unix') || s:present(dict, 'up', 'left', 'right', 'window')) &&
         \ executable('tput') && filereadable('/dev/tty')
   let has_vim8_term = has('terminal') && has('patch-8.0.995')
   let has_nvim_term = has('nvim-0.2.1') || has('nvim') && !s:is_win
   let use_term = has_nvim_term ||
-    \ has_vim8_term && (has('gui_running') || s:is_win || !use_height && s:present(dict, 'down', 'up', 'left', 'right', 'window'))
-  let use_tmux = (!use_height && !use_term || prefer_tmux) && !has('win32unix') && s:tmux_enabled() && s:splittable(dict)
+    \ has_vim8_term && !has('win32unix') && (has('gui_running') || s:is_win || !use_height && s:present(dict, 'down', 'up', 'left', 'right', 'window'))
+  let use_tmux = (has_key(dict, 'tmux') || (!use_height && !use_term || prefer_tmux) && !has('win32unix') && s:splittable(dict)) && s:tmux_enabled()
   if prefer_tmux && use_tmux
     let use_height = 0
     let use_term = 0
@@ -404,6 +499,7 @@ try
   elseif use_term
     let optstr .= ' --no-height'
   endif
+  let optstr .= s:border_opt(get(dict, 'window', 0))
   let command = prefix.(use_tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result
 
   if use_term
@@ -415,7 +511,7 @@ try
   call s:callback(dict, lines)
   return lines
 finally
-  let [&shell, &shellslash] = [shell, shellslash]
+  let [&shell, &shellslash, &shellcmdflag, &shellxquote] = [shell, shellslash, shellcmdflag, shellxquote]
 endtry
 endfunction
 
@@ -429,19 +525,21 @@ function! s:present(dict, ...)
 endfunction
 
 function! s:fzf_tmux(dict)
-  let size = ''
-  for o in ['up', 'down', 'left', 'right']
-    if s:present(a:dict, o)
-      let spec = a:dict[o]
-      if (o == 'up' || o == 'down') && spec[0] == '~'
-        let size = '-'.o[0].s:calc_size(&lines, spec, a:dict)
-      else
-        " Legacy boolean option
-        let size = '-'.o[0].(spec == 1 ? '' : substitute(spec, '^\~', '', ''))
+  let size = get(a:dict, 'tmux', '')
+  if empty(size)
+    for o in ['up', 'down', 'left', 'right']
+      if s:present(a:dict, o)
+        let spec = a:dict[o]
+        if (o == 'up' || o == 'down') && spec[0] == '~'
+          let size = '-'.o[0].s:calc_size(&lines, spec, a:dict)
+        else
+          " Legacy boolean option
+          let size = '-'.o[0].(spec == 1 ? '' : substitute(spec, '^\~', '', ''))
+        endif
+        break
       endif
-      break
-    endif
-  endfor
+    endfor
+  endif
   return printf('LINES=%d COLUMNS=%d %s %s %s --',
     \ &lines, &columns, fzf#shellescape(s:fzf_tmux), size, (has_key(a:dict, 'source') ? '' : '-'))
 endfunction
@@ -454,15 +552,18 @@ endfunction
 function! s:pushd(dict)
   if s:present(a:dict, 'dir')
     let cwd = s:fzf_getcwd()
-    if get(a:dict, 'prev_dir', '') ==# cwd
-      return 1
-    endif
-    let a:dict.prev_dir = cwd
+    let w:fzf_pushd = {
+    \   'command': haslocaldir() ? 'lcd' : (exists(':tcd') && haslocaldir(-1) ? 'tcd' : 'cd'),
+    \   'origin': cwd,
+    \   'bufname': bufname('')
+    \ }
     execute 'lcd' s:escape(a:dict.dir)
-    let a:dict.dir = s:fzf_getcwd()
-    return 1
+    let cwd = s:fzf_getcwd()
+    let w:fzf_pushd.dir = cwd
+    let a:dict.pushd = w:fzf_pushd
+    return cwd
   endif
-  return 0
+  return ''
 endfunction
 
 augroup fzf_popd
@@ -471,20 +572,38 @@ augroup fzf_popd
 augroup END
 
 function! s:dopopd()
-  if !exists('w:fzf_dir') || s:fzf_getcwd() != w:fzf_dir[1]
+  if !exists('w:fzf_pushd')
     return
   endif
-  execute 'lcd' s:escape(w:fzf_dir[0])
-  unlet w:fzf_dir
+
+  " FIXME: We temporarily change the working directory to 'dir' entry
+  " of options dictionary (set to the current working directory if not given)
+  " before running fzf.
+  "
+  " e.g. call fzf#run({'dir': '/tmp', 'source': 'ls', 'sink': 'e'})
+  "
+  " After processing the sink function, we have to restore the current working
+  " directory. But doing so may not be desirable if the function changed the
+  " working directory on purpose.
+  "
+  " So how can we tell if we should do it or not? A simple heuristic we use
+  " here is that we change directory only if the current working directory
+  " matches 'dir' entry. However, it is possible that the sink function did
+  " change the directory to 'dir'. In that case, the user will have an
+  " unexpected result.
+  if s:fzf_getcwd() ==# w:fzf_pushd.dir && (!&autochdir || w:fzf_pushd.bufname ==# bufname(''))
+    execute w:fzf_pushd.command s:escape(w:fzf_pushd.origin)
+  endif
+  unlet! w:fzf_pushd
 endfunction
 
 function! s:xterm_launcher()
-  let fmt = 'xterm -T "[fzf]" -bg "\%s" -fg "\%s" -geometry %dx%d+%d+%d -e bash -ic %%s'
+  let fmt = 'xterm -T "[fzf]" -bg "%s" -fg "%s" -geometry %dx%d+%d+%d -e bash -ic %%s'
   if has('gui_macvim')
     let fmt .= '&& osascript -e "tell application \"MacVim\" to activate"'
   endif
   return printf(fmt,
-    \ synIDattr(hlID("Normal"), "bg"), synIDattr(hlID("Normal"), "fg"),
+    \ escape(synIDattr(hlID("Normal"), "bg"), '#'), escape(synIDattr(hlID("Normal"), "fg"), '#'),
     \ &columns, &lines/2, getwinposx(), getwinposy())
 endfunction
 unlet! s:launcher
@@ -497,6 +616,10 @@ endif
 function! s:exit_handler(code, command, ...)
   if a:code == 130
     return 0
+  elseif has('nvim') && a:code == 129
+    " When deleting the terminal buffer while fzf is still running,
+    " Nvim sends SIGHUP.
+    return 0
   elseif a:code > 1
     call s:error('Error running ' . a:command)
     if !empty(a:000)
@@ -533,9 +656,7 @@ function! s:execute(dict, command, use_height, temps) abort
       let fzf.dict = a:dict
       let fzf.temps = a:temps
       function! fzf.on_exit(job_id, exit_status, event) dict
-        if s:present(self.dict, 'dir')
-          execute 'lcd' s:escape(self.dict.dir)
-        endif
+        call s:pushd(self.dict)
         let lines = s:collect(self.temps)
         call s:callback(self.dict, lines)
       endfunction
@@ -557,20 +678,23 @@ function! s:execute(dict, command, use_height, temps) abort
   endif
   let exit_status = v:shell_error
   redraw!
-  return s:exit_handler(exit_status, command) ? s:collect(a:temps) : []
+  let lines = s:collect(a:temps)
+  return s:exit_handler(exit_status, command) ? lines : []
 endfunction
 
 function! s:execute_tmux(dict, command, temps) abort
   let command = a:command
-  if s:pushd(a:dict)
+  let cwd = s:pushd(a:dict)
+  if len(cwd)
     " -c '#{pane_current_path}' is only available on tmux 1.9 or above
-    let command = join(['cd', fzf#shellescape(a:dict.dir), '&&', command])
+    let command = join(['cd', fzf#shellescape(cwd), '&&', command])
   endif
 
   call system(command)
   let exit_status = v:shell_error
   redraw!
-  return s:exit_handler(exit_status, command) ? s:collect(a:temps) : []
+  let lines = s:collect(a:temps)
+  return s:exit_handler(exit_status, command) ? lines : []
 endfunction
 
 function! s:calc_size(max, val, dict)
@@ -586,14 +710,46 @@ function! s:calc_size(max, val, dict)
     let srcsz = len(a:dict.source)
   endif
 
-  let opts = get(a:dict, 'options', '').$FZF_DEFAULT_OPTS
-  let margin = stridx(opts, '--inline-info') > stridx(opts, '--no-inline-info') ? 1 : 2
-  let margin += stridx(opts, '--header') > stridx(opts, '--no-header')
+  let opts = $FZF_DEFAULT_OPTS.' '.s:evaluate_opts(get(a:dict, 'options', ''))
+  if opts =~ 'preview'
+    return size
+  endif
+  let margin = match(opts, '--inline-info\|--info[^-]\{-}inline') > match(opts, '--no-inline-info\|--info[^-]\{-}\(default\|hidden\)') ? 1 : 2
+  let margin += stridx(opts, '--border') > stridx(opts, '--no-border') ? 2 : 0
+  if stridx(opts, '--header') > stridx(opts, '--no-header')
+    let margin += len(split(opts, "\n"))
+  endif
   return srcsz >= 0 ? min([srcsz + margin, size]) : size
 endfunction
 
 function! s:getpos()
-  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$'), 'tcnt': tabpagenr('$')}
+  return {'tab': tabpagenr(), 'win': winnr(), 'winid': win_getid(), 'cnt': winnr('$'), 'tcnt': tabpagenr('$')}
+endfunction
+
+function! s:border_opt(window)
+  if type(a:window) != type({})
+    return ''
+  endif
+
+  " Border style
+  let style = tolower(get(a:window, 'border', 'rounded'))
+  if !has_key(a:window, 'border') && !get(a:window, 'rounded', 1)
+    let style = 'sharp'
+  endif
+  if style == 'none' || style == 'no'
+    return ''
+  endif
+
+  " For --border styles, we need fzf 0.24.0 or above
+  call fzf#exec('0.24.0')
+  let opt = ' --border=' . style
+  if has_key(a:window, 'highlight')
+    let color = s:get_color('fg', a:window.highlight)
+    if len(color)
+      let opt .= ' --color=border:' . color
+    endif
+  endif
+  return opt
 endfunction
 
 function! s:split(dict)
@@ -603,9 +759,18 @@ function! s:split(dict)
   \ 'left':  ['vertical topleft', 'vertical resize', &columns],
   \ 'right': ['vertical botright', 'vertical resize', &columns] }
   let ppos = s:getpos()
+  let is_popup = 0
   try
     if s:present(a:dict, 'window')
-      execute 'keepalt' a:dict.window
+      if type(a:dict.window) == type({})
+        if !s:popup_support()
+          throw 'Nvim 0.4+ or Vim 8.2.191+ with popupwin feature is required for pop-up window'
+        end
+        call s:popup(a:dict.window)
+        let is_popup = 1
+      else
+        execute 'keepalt' a:dict.window
+      endif
     elseif !s:splittable(a:dict)
       execute (tabpagenr()-1).'tabnew'
     else
@@ -620,20 +785,29 @@ function! s:split(dict)
           endif
           execute cmd sz.'new'
           execute resz sz
-          return [ppos, {}]
+          return [ppos, {}, is_popup]
         endif
       endfor
     endif
-    return [ppos, { '&l:wfw': &l:wfw, '&l:wfh': &l:wfh }]
+    return [ppos, is_popup ? {} : { '&l:wfw': &l:wfw, '&l:wfh': &l:wfh }, is_popup]
   finally
-    setlocal winfixwidth winfixheight
+    if !is_popup
+      setlocal winfixwidth winfixheight
+    endif
   endtry
 endfunction
 
+nnoremap <silent> <Plug>(fzf-insert) i
+nnoremap <silent> <Plug>(fzf-normal) <Nop>
+if exists(':tnoremap')
+  tnoremap <silent> <Plug>(fzf-insert) <C-\><C-n>i
+  tnoremap <silent> <Plug>(fzf-normal) <C-\><C-n>
+endif
+
 function! s:execute_term(dict, command, temps) abort
   let winrest = winrestcmd()
   let pbuf = bufnr('')
-  let [ppos, winopts] = s:split(a:dict)
+  let [ppos, winopts, is_popup] = s:split(a:dict)
   call s:use_sh()
   let b:fzf = a:dict
   let fzf = { 'buf': bufnr(''), 'pbuf': pbuf, 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
@@ -642,7 +816,7 @@ function! s:execute_term(dict, command, temps) abort
   function! fzf.switch_back(inplace)
     if a:inplace && bufnr('') == self.buf
       if bufexists(self.pbuf)
-        execute 'keepalt b' self.pbuf
+        execute 'keepalt keepjumps b' self.pbuf
       endif
       " No other listed buffer
       if bufnr('') == self.buf
@@ -662,8 +836,8 @@ function! s:execute_term(dict, command, temps) abort
         " there's no other listed buffer (nvim +'set nobuflisted')
         close
       endif
-      execute 'tabnext' self.ppos.tab
-      execute self.ppos.win.'wincmd w'
+      silent! execute 'tabnext' self.ppos.tab
+      silent! execute self.ppos.win.'wincmd w'
     endif
 
     if bufexists(self.buf)
@@ -674,20 +848,22 @@ function! s:execute_term(dict, command, temps) abort
       execute self.winrest
     endif
 
+    let lines = s:collect(self.temps)
     if !s:exit_handler(a:code, self.command, 1)
       return
     endif
 
     call s:pushd(self.dict)
-    let lines = s:collect(self.temps)
     call s:callback(self.dict, lines)
     call self.switch_back(s:getpos() == self.ppos)
+
+    if &buftype == 'terminal'
+      call feedkeys(&filetype == 'fzf' ? "\<Plug>(fzf-insert)" : "\<Plug>(fzf-normal)")
+    endif
   endfunction
 
   try
-    if s:present(a:dict, 'dir')
-      execute 'lcd' s:escape(a:dict.dir)
-    endif
+    call s:pushd(a:dict)
     if s:is_win
       let fzf.temps.batchfile = s:fzf_tempname().'.bat'
       call writefile(s:wrap_cmds(a:command), fzf.temps.batchfile)
@@ -699,16 +875,29 @@ function! s:execute_term(dict, command, temps) abort
     if has('nvim')
       call termopen(command, fzf)
     else
-      let t = term_start([&shell, &shellcmdflag, command], {'curwin': fzf.buf, 'exit_cb': function(fzf.on_exit)})
-      " FIXME: https://github.com/vim/vim/issues/1998
-      if !has('nvim') && !s:is_win
-        call term_wait(t, 20)
+      let term_opts = {'exit_cb': function(fzf.on_exit)}
+      if v:version >= 802
+        let term_opts.term_kill = 'term'
+      endif
+      if is_popup
+        let term_opts.hidden = 1
+      else
+        let term_opts.curwin = 1
+      endif
+      let fzf.buf = term_start([&shell, &shellcmdflag, command], term_opts)
+      if is_popup && exists('#TerminalWinOpen')
+        doautocmd <nomodeline> TerminalWinOpen
+      endif
+      if !has('patch-8.0.1261') && !s:is_win
+        call term_wait(fzf.buf, 20)
       endif
     endif
-  finally
-    if s:present(a:dict, 'dir')
-      lcd -
+    tnoremap <buffer> <c-z> <nop>
+    if exists('&termwinkey') && (empty(&termwinkey) || &termwinkey =~? '<c-w>')
+      tnoremap <buffer> <c-w> <c-w>.
     endif
+  finally
+    call s:dopopd()
   endtry
   setlocal nospell bufhidden=wipe nobuflisted nonumber
   setf fzf
@@ -727,21 +916,9 @@ function! s:collect(temps) abort
 endfunction
 
 function! s:callback(dict, lines) abort
-  " Since anything can be done in the sink function, there is no telling that
-  " the change of the working directory was made by &autochdir setting.
-  "
-  " We use the following heuristic to determine whether to restore CWD:
-  " - Always restore the current directory when &autochdir is disabled.
-  "   FIXME This makes it impossible to change directory from inside the sink
-  "   function when &autochdir is not used.
-  " - In case of an error or an interrupt, a:lines will be empty.
-  "   And it will be an array of a single empty string when fzf was finished
-  "   without a match. In these cases, we presume that the change of the
-  "   directory is not expected and should be undone.
-  let popd = has_key(a:dict, 'prev_dir') &&
-        \ (!&autochdir || (empty(a:lines) || len(a:lines) == 1 && empty(a:lines[0])))
+  let popd = has_key(a:dict, 'pushd')
   if popd
-    let w:fzf_dir = [a:dict.prev_dir, a:dict.dir]
+    let w:fzf_pushd = a:dict.pushd
   endif
 
   try
@@ -765,11 +942,53 @@ function! s:callback(dict, lines) abort
 
   " We may have opened a new window or tab
   if popd
-    let w:fzf_dir = [a:dict.prev_dir, a:dict.dir]
+    let w:fzf_pushd = a:dict.pushd
     call s:dopopd()
   endif
 endfunction
 
+if has('nvim')
+  function s:create_popup(hl, opts) abort
+    let buf = nvim_create_buf(v:false, v:true)
+    let opts = extend({'relative': 'editor', 'style': 'minimal'}, a:opts)
+    let win = nvim_open_win(buf, v:true, opts)
+    call setwinvar(win, '&winhighlight', 'NormalFloat:'..a:hl)
+    call setwinvar(win, '&colorcolumn', '')
+    return buf
+  endfunction
+else
+  function! s:create_popup(hl, opts) abort
+    let s:popup_create = {buf -> popup_create(buf, #{
+      \ line: a:opts.row,
+      \ col: a:opts.col,
+      \ minwidth: a:opts.width,
+      \ maxwidth: a:opts.width,
+      \ minheight: a:opts.height,
+      \ maxheight: a:opts.height,
+      \ zindex: 1000,
+    \ })}
+    autocmd TerminalOpen * ++once call s:popup_create(str2nr(expand('<abuf>')))
+  endfunction
+endif
+
+function! s:popup(opts) abort
+  " Size and position
+  let width = min([max([8, a:opts.width > 1 ? a:opts.width : float2nr(&columns * a:opts.width)]), &columns])
+  let height = min([max([4, a:opts.height > 1 ? a:opts.height : float2nr(&lines * a:opts.height)]), &lines - has('nvim')])
+  let row = float2nr(get(a:opts, 'yoffset', 0.5) * (&lines - height))
+  let col = float2nr(get(a:opts, 'xoffset', 0.5) * (&columns - width))
+
+  " Managing the differences
+  let row = min([max([0, row]), &lines - has('nvim') - height])
+  let col = min([max([0, col]), &columns - width])
+  let row += !has('nvim')
+  let col += !has('nvim')
+
+  call s:create_popup('Normal', {
+    \ 'row': row, 'col': col, 'width': width, 'height': height
+  \ })
+endfunction
+
 let s:default_action = {
   \ 'ctrl-t': 'tab split',
   \ 'ctrl-x': 'split',

shell/completion.bash

@@ -1,21 +1,22 @@
-#!/bin/bash
 #     ____      ____
 #    / __/___  / __/
 #   / /_/_  / / /_
 #  / __/ / /_/ __/
-# /_/   /___/_/-completion.bash
+# /_/   /___/_/ completion.bash
 #
 # - $FZF_TMUX               (default: 0)
-# - $FZF_TMUX_HEIGHT        (default: '40%')
+# - $FZF_TMUX_OPTS          (default: empty)
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+if [[ $- =~ i ]]; then
+
 # To use custom commands instead of find, override _fzf_compgen_{path,dir}
 if ! declare -f _fzf_compgen_path > /dev/null; then
   _fzf_compgen_path() {
     echo "$1"
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
@@ -23,7 +24,7 @@ fi
 if ! declare -f _fzf_compgen_dir > /dev/null; then
   _fzf_compgen_dir() {
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o -type d \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o -type d \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
@@ -33,14 +34,32 @@ fi
 # To redraw line after fzf closes (printf '\e[5n')
 bind '"\e[0n": redraw-current-line'
 
-__fzfcmd_complete() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] &&
-    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+__fzf_comprun() {
+  if [ "$(type -t _fzf_comprun 2>&1)" = function ]; then
+    _fzf_comprun "$@"
+  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
+    shift
+    fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- "$@"
+  else
+    shift
+    fzf "$@"
+  fi
 }
 
-_fzf_orig_completion_filter() {
-  sed 's/^\(.*-F\) *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\3="\1 %s \3 #\2";/' |
-  awk -F= '{gsub(/[^A-Za-z0-9_= ;]/, "_", $1); print $1"="$2}'
+__fzf_orig_completion() {
+  local l comp f cmd
+  while read -r l; do
+    if [[ "$l" =~ ^(.*\ -F)\ *([^ ]*).*\ ([^ ]*)$ ]]; then
+      comp="${BASH_REMATCH[1]}"
+      f="${BASH_REMATCH[2]}"
+      cmd="${BASH_REMATCH[3]}"
+      [[ "$f" = _fzf_* ]] && continue
+      printf -v "_fzf_orig_completion_${cmd//[^A-Za-z0-9_]/_}" "%s" "${comp} %s ${cmd} #${f}"
+      if [[ "$l" = *" -o nospace "* ]] && [[ ! "$__fzf_nospace_commands" = *" $cmd "* ]]; then
+        __fzf_nospace_commands="$__fzf_nospace_commands $cmd "
+      fi
+    fi
+  done
 }
 
 _fzf_opts_completion() {
@@ -71,6 +90,8 @@ _fzf_opts_completion() {
     --margin
     --inline-info
     --prompt
+    --pointer
+    --marker
     --header
     --header-lines
     --ansi
@@ -113,7 +134,7 @@ _fzf_opts_completion() {
 }
 
 _fzf_handle_dynamic_completion() {
-  local cmd orig_var orig ret orig_cmd
+  local cmd orig_var orig ret orig_cmd orig_complete
   cmd="$1"
   shift
   orig_cmd="$1"
@@ -122,17 +143,24 @@ _fzf_handle_dynamic_completion() {
   if [ -n "$orig" ] && type "$orig" > /dev/null 2>&1; then
     $orig "$@"
   elif [ -n "$_fzf_completion_loader" ]; then
+    orig_complete=$(complete -p "$orig_cmd" 2> /dev/null)
     _completion_loader "$@"
     ret=$?
-    eval "$(complete | command grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)"
-    source "${BASH_SOURCE[0]}"
+    # _completion_loader may not have updated completion for the command
+    if [ "$(complete -p "$orig_cmd" 2> /dev/null)" != "$orig_complete" ]; then
+      __fzf_orig_completion < <(complete -p "$orig_cmd" 2> /dev/null)
+      if [[ "$__fzf_nospace_commands" = *" $orig_cmd "* ]]; then
+        eval "${orig_complete/ -F / -o nospace -F }"
+      else
+        eval "$orig_complete"
+      fi
+    fi
     return $ret
   fi
 }
 
 __fzf_generic_path_completion() {
-  local cur base dir leftover matches trigger cmd fzf
-  fzf="$(__fzfcmd_complete)"
+  local cur base dir leftover matches trigger cmd
   cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
   COMPREPLY=()
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
@@ -141,17 +169,18 @@ __fzf_generic_path_completion() {
     base=${cur:0:${#cur}-${#trigger}}
     eval "base=$base"
 
-    dir="$base"
+    [[ $base = *"/"* ]] && dir="$base"
     while true; do
       if [ -z "$dir" ] || [ -d "$dir" ]; then
         leftover=${base/#"$dir"}
         leftover=${leftover/#\/}
         [ -z "$dir" ] && dir='.'
         [ "$dir" != "/" ] && dir="${dir/%\//}"
-        matches=$(eval "$1 $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" $fzf $2 -q "$leftover" | while read -r item; do
+        matches=$(eval "$1 $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS $2" __fzf_comprun "$4" -q "$leftover" | while read -r item; do
           printf "%q$3 " "$item"
         done)
         matches=${matches% }
+        [[ -z "$3" ]] && [[ "$__fzf_nospace_commands" = *" ${COMP_WORDS[0]} "* ]] && matches="$matches "
         if [ -n "$matches" ]; then
           COMPREPLY=( "$matches" )
         else
@@ -172,10 +201,30 @@ __fzf_generic_path_completion() {
 }
 
 _fzf_complete() {
-  local cur selected trigger cmd fzf post
+  # Split arguments around --
+  local args rest str_arg i sep
+  args=("$@")
+  sep=
+  for i in "${!args[@]}"; do
+    if [[ "${args[$i]}" = -- ]]; then
+      sep=$i
+      break
+    fi
+  done
+  if [[ -n "$sep" ]]; then
+    str_arg=
+    rest=("${args[@]:$((sep + 1)):${#args[@]}}")
+    args=("${args[@]:0:$sep}")
+  else
+    str_arg=$1
+    args=()
+    shift
+    rest=("$@")
+  fi
+
+  local cur selected trigger cmd post
   post="$(caller 0 | awk '{print $2}')_post"
   type -t "$post" > /dev/null 2>&1 || post=cat
-  fzf="$(__fzfcmd_complete)"
 
   cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
@@ -183,17 +232,17 @@ _fzf_complete() {
   if [[ "$cur" == *"$trigger" ]]; then
     cur=${cur:0:${#cur}-${#trigger}}
 
-    selected=$(cat | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" $fzf $1 -q "$cur" | $post | tr '\n' ' ')
+    selected=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS $str_arg" __fzf_comprun "${rest[0]}" "${args[@]}" -q "$cur" | $post | tr '\n' ' ')
     selected=${selected% } # Strip trailing space not to repeat "-o nospace"
-    printf '\e[5n'
-
     if [ -n "$selected" ]; then
       COMPREPLY=("$selected")
-      return 0
+    else
+      COMPREPLY=("$cur")
     fi
+    printf '\e[5n'
+    return 0
   else
-    shift
-    _fzf_handle_dynamic_completion "$cmd" "$@"
+    _fzf_handle_dynamic_completion "$cmd" "${rest[@]}"
   fi
 }
 
@@ -211,49 +260,44 @@ _fzf_dir_completion() {
 }
 
 _fzf_complete_kill() {
-  [ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
-
-  local selected fzf
-  fzf="$(__fzfcmd_complete)"
-  selected=$(ps -ef | sed 1d | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-50%} --min-height 15 --reverse $FZF_DEFAULT_OPTS --preview 'echo {}' --preview-window down:3:wrap $FZF_COMPLETION_OPTS" $fzf -m | awk '{print $2}' | tr '\n' ' ')
-  printf '\e[5n'
-
-  if [ -n "$selected" ]; then
-    COMPREPLY=( "$selected" )
-    return 0
+  local trigger=${FZF_COMPLETION_TRIGGER-'**'}
+  local cur="${COMP_WORDS[COMP_CWORD]}"
+  if [[ -z "$cur" ]]; then
+    COMP_WORDS[$COMP_CWORD]=$trigger
+  elif [[ "$cur" != *"$trigger" ]]; then
+    return 1
   fi
+
+  _fzf_proc_completion "$@"
 }
 
-_fzf_complete_telnet() {
-  _fzf_complete '+m' "$@" < <(
-    command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
-        awk '{if (length($2) > 0) {print $2}}' | sort -u
+_fzf_proc_completion() {
+  _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
+    command ps -ef | sed 1d
   )
 }
 
-_fzf_complete_ssh() {
-  _fzf_complete '+m' "$@" < <(
-    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}') \
-        <(command grep -oE '^[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
+_fzf_proc_completion_post() {
+  awk '{print $2}'
+}
+
+_fzf_host_completion() {
+  _fzf_complete +m -- "$@" < <(
+    command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
+        <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
         <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
 
-_fzf_complete_unset() {
-  _fzf_complete '-m' "$@" < <(
+_fzf_var_completion() {
+  _fzf_complete -m -- "$@" < <(
     declare -xp | sed 's/=.*//' | sed 's/.* //'
   )
 }
 
-_fzf_complete_export() {
-  _fzf_complete '-m' "$@" < <(
-    declare -xp | sed 's/=.*//' | sed 's/.* //'
-  )
-}
-
-_fzf_complete_unalias() {
-  _fzf_complete '-m' "$@" < <(
+_fzf_alias_completion() {
+  _fzf_complete -m -- "$@" < <(
     alias | sed 's/=.*//' | sed 's/.* //'
   )
 }
@@ -271,18 +315,15 @@ a_cmds="
   find git grep gunzip gzip hg jar
   ln ls mv open rm rsync scp
   svn tar unzip zip"
-x_cmds="kill ssh telnet unset unalias export"
 
 # Preserve existing completion
-eval $(complete |
-  sed -E '/-F/!d; / _fzf/d; '"/ ($(echo $d_cmds $a_cmds $x_cmds | sed 's/ /|/g; s/+/\\+/g'))$/"'!d' |
-  _fzf_orig_completion_filter)
+__fzf_orig_completion < <(complete -p $d_cmds $a_cmds 2> /dev/null)
 
 if type _completion_loader > /dev/null 2>&1; then
   _fzf_completion_loader=1
 fi
 
-_fzf_defc() {
+__fzf_defc() {
   local cmd func opts orig_var orig def
   cmd="$1"
   func="$2"
@@ -299,26 +340,42 @@ _fzf_defc() {
 
 # Anything
 for cmd in $a_cmds; do
-  _fzf_defc "$cmd" _fzf_path_completion "-o default -o bashdefault"
+  __fzf_defc "$cmd" _fzf_path_completion "-o default -o bashdefault"
 done
 
 # Directory
 for cmd in $d_cmds; do
-  _fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
+  __fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
 done
 
-unset _fzf_defc
+# Kill completion (supports empty completion trigger)
+complete -F _fzf_complete_kill -o default -o bashdefault kill
 
-# Kill completion
-complete -F _fzf_complete_kill -o nospace -o default -o bashdefault kill
+unset cmd d_cmds a_cmds
 
-# Host completion
-complete -F _fzf_complete_ssh -o default -o bashdefault ssh
-complete -F _fzf_complete_telnet -o default -o bashdefault telnet
+_fzf_setup_completion() {
+  local kind fn cmd
+  kind=$1
+  fn=_fzf_${1}_completion
+  if [[ $# -lt 2 ]] || ! type -t "$fn" > /dev/null; then
+    echo "usage: ${FUNCNAME[0]} path|dir|var|alias|host|proc COMMANDS..."
+    return 1
+  fi
+  shift
+  __fzf_orig_completion < <(complete -p "$@" 2> /dev/null)
+  for cmd in "$@"; do
+    case "$kind" in
+      dir)   __fzf_defc "$cmd" "$fn" "-o nospace -o dirnames" ;;
+      var)   __fzf_defc "$cmd" "$fn" "-o default -o nospace -v" ;;
+      alias) __fzf_defc "$cmd" "$fn" "-a" ;;
+      *)     __fzf_defc "$cmd" "$fn" "-o default -o bashdefault" ;;
+    esac
+  done
+}
 
-# Environment variables / Aliases
-complete -F _fzf_complete_unset -o default -o bashdefault unset
-complete -F _fzf_complete_export -o default -o bashdefault export
-complete -F _fzf_complete_unalias -o default -o bashdefault unalias
+# Environment variables / Aliases / Hosts
+_fzf_setup_completion 'var'   export unset
+_fzf_setup_completion 'alias' unalias
+_fzf_setup_completion 'host'  ssh telnet
 
-unset cmd d_cmds a_cmds x_cmds
+fi

shell/completion.zsh

@@ -1,21 +1,87 @@
-#!/bin/zsh
 #     ____      ____
 #    / __/___  / __/
 #   / /_/_  / / /_
 #  / __/ / /_/ __/
-# /_/   /___/_/-completion.zsh
+# /_/   /___/_/ completion.zsh
 #
 # - $FZF_TMUX               (default: 0)
-# - $FZF_TMUX_HEIGHT        (default: '40%')
+# - $FZF_TMUX_OPTS          (default: '-d 40%')
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+# Both branches of the following `if` do the same thing -- define
+# __fzf_completion_options such that `eval $__fzf_completion_options` sets
+# all options to the same values they currently have. We'll do just that at
+# the bottom of the file after changing options to what we prefer.
+#
+# IMPORTANT: Until we get to the `emulate` line, all words that *can* be quoted
+# *must* be quoted in order to prevent alias expansion. In addition, code must
+# be written in a way works with any set of zsh options. This is very tricky, so
+# careful when you change it.
+#
+# Start by loading the builtin zsh/parameter module. It provides `options`
+# associative array that stores current shell options.
+if 'zmodload' 'zsh/parameter' 2>'/dev/null' && (( ${+options} )); then
+  # This is the fast branch and it gets taken on virtually all Zsh installations.
+  #
+  # ${(kv)options[@]} expands to array of keys (option names) and values ("on"
+  # or "off"). The subsequent expansion# with (j: :) flag joins all elements
+  # together separated by spaces. __fzf_completion_options ends up with a value
+  # like this: "options=(shwordsplit off aliases on ...)".
+  __fzf_completion_options="options=(${(j: :)${(kv)options[@]}})"
+else
+  # This branch is much slower because it forks to get the names of all
+  # zsh options. It's possible to eliminate this fork but it's not worth the
+  # trouble because this branch gets taken only on very ancient or broken
+  # zsh installations.
+  () {
+    # That `()` above defines an anonymous function. This is essentially a scope
+    # for local parameters. We use it to avoid polluting global scope.
+    'local' '__fzf_opt'
+    __fzf_completion_options="setopt"
+    # `set -o` prints one line for every zsh option. Each line contains option
+    # name, some spaces, and then either "on" or "off". We just want option names.
+    # Expansion with (@f) flag splits a string into lines. The outer expansion
+    # removes spaces and everything that follow them on every line. __fzf_opt
+    # ends up iterating over option names: shwordsplit, aliases, etc.
+    for __fzf_opt in "${(@)${(@f)$(set -o)}%% *}"; do
+      if [[ -o "$__fzf_opt" ]]; then
+        # Option $__fzf_opt is currently on, so remember to set it back on.
+        __fzf_completion_options+=" -o $__fzf_opt"
+      else
+        # Option $__fzf_opt is currently off, so remember to set it back off.
+        __fzf_completion_options+=" +o $__fzf_opt"
+      fi
+    done
+    # The value of __fzf_completion_options here looks like this:
+    # "setopt +o shwordsplit -o aliases ..."
+  }
+fi
+
+# Enable the default zsh options (those marked with <Z> in `man zshoptions`)
+# but without `aliases`. Aliases in functions are expanded when functions are
+# defined, so if we disable aliases here, we'll be sure to have no pesky
+# aliases in any of our functions. This way we won't need prefix every
+# command with `command` or to quote every word to defend against global
+# aliases. Note that `aliases` is not the only option that's important to
+# control. There are several others that could wreck havoc if they are set
+# to values we don't expect. With the following `emulate` command we
+# sidestep this issue entirely.
+'emulate' 'zsh' '-o' 'no_aliases'
+
+# This brace is the start of try-always block. The `always` part is like
+# `finally` in lesser languages. We use it to *always* restore user options.
+{
+
+# Bail out if not interactive shell.
+[[ -o interactive ]] || return 0
+
 # To use custom commands instead of find, override _fzf_compgen_{path,dir}
 if ! declare -f _fzf_compgen_path > /dev/null; then
   _fzf_compgen_path() {
     echo "$1"
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
@@ -23,47 +89,70 @@ fi
 if ! declare -f _fzf_compgen_dir > /dev/null; then
   _fzf_compgen_dir() {
     command find -L "$1" \
-      -name .git -prune -o -name .svn -prune -o -type d \
+      -name .git -prune -o -name .hg -prune -o -name .svn -prune -o -type d \
       -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
   }
 fi
 
 ###########################################################
 
-__fzfcmd_complete() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ] &&
-    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+__fzf_comprun() {
+  if [[ "$(type _fzf_comprun 2>&1)" =~ function ]]; then
+    _fzf_comprun "$@"
+  elif [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; }; then
+    shift
+    if [ -n "$FZF_TMUX_OPTS" ]; then
+      fzf-tmux ${(Q)${(Z+n+)FZF_TMUX_OPTS}} -- "$@"
+    else
+      fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%} -- "$@"
+    fi
+  else
+    shift
+    fzf "$@"
+  fi
+}
+
+# Extract the name of the command. e.g. foo=1 bar baz**<tab>
+__fzf_extract_command() {
+  local token tokens
+  tokens=(${(z)1})
+  for token in $tokens; do
+    token=${(Q)token}
+    if [[ "$token" =~ [[:alnum:]] && ! "$token" =~ "=" ]]; then
+      echo "$token"
+      return
+    fi
+  done
+  echo "${tokens[1]}"
 }
 
 __fzf_generic_path_completion() {
-  local base lbuf compgen fzf_opts suffix tail fzf dir leftover matches
-  # (Q) flag removes a quoting level: "foo\ bar" => "foo bar"
-  base=${(Q)1}
+  local base lbuf cmd compgen fzf_opts suffix tail dir leftover matches
+  base=$1
   lbuf=$2
+  cmd=$(__fzf_extract_command "$lbuf")
   compgen=$3
   fzf_opts=$4
   suffix=$5
   tail=$6
-  fzf="$(__fzfcmd_complete)"
 
   setopt localoptions nonomatch
-  dir="$base"
+  eval "base=$base"
+  [[ $base = *"/"* ]] && dir="$base"
   while [ 1 ]; do
-    if [[ -z "$dir" || -d ${~dir} ]]; then
+    if [[ -z "$dir" || -d ${dir} ]]; then
       leftover=${base/#"$dir"}
       leftover=${leftover/#\/}
       [ -z "$dir" ] && dir='.'
       [ "$dir" != "/" ] && dir="${dir/%\//}"
-      dir=${~dir}
-      matches=$(eval "$compgen $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" ${=fzf} ${=fzf_opts} -q "$leftover" | while read item; do
+      matches=$(eval "$compgen $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" __fzf_comprun "$cmd" ${(Q)${(Z+n+)fzf_opts}} -q "$leftover" | while read item; do
         echo -n "${(q)item}$suffix "
       done)
       matches=${matches% }
       if [ -n "$matches" ]; then
         LBUFFER="$lbuf$matches$tail"
       fi
-      zle redisplay
-      typeset -f zle-line-init >/dev/null && zle zle-line-init
+      zle reset-prompt
       break
     fi
     dir=$(dirname "$dir")
@@ -88,61 +177,90 @@ _fzf_feed_fifo() (
 )
 
 _fzf_complete() {
-  local fifo fzf_opts lbuf fzf matches post
+  setopt localoptions ksh_arrays
+  # Split arguments around --
+  local args rest str_arg i sep
+  args=("$@")
+  sep=
+  for i in {0..${#args[@]}}; do
+    if [[ "${args[$i]}" = -- ]]; then
+      sep=$i
+      break
+    fi
+  done
+  if [[ -n "$sep" ]]; then
+    str_arg=
+    rest=("${args[@]:$((sep + 1)):${#args[@]}}")
+    args=("${args[@]:0:$sep}")
+  else
+    str_arg=$1
+    args=()
+    shift
+    rest=("$@")
+  fi
+
+  local fifo lbuf cmd matches post
   fifo="${TMPDIR:-/tmp}/fzf-complete-fifo-$$"
-  fzf_opts=$1
-  lbuf=$2
-  post="${funcstack[2]}_post"
+  lbuf=${rest[0]}
+  cmd=$(__fzf_extract_command "$lbuf")
+  post="${funcstack[1]}_post"
   type $post > /dev/null 2>&1 || post=cat
 
-  fzf="$(__fzfcmd_complete)"
-
   _fzf_feed_fifo "$fifo"
-  matches=$(cat "$fifo" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS" ${=fzf} ${=fzf_opts} -q "${(Q)prefix}" | $post | tr '\n' ' ')
+  matches=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS $str_arg" __fzf_comprun "$cmd" "${args[@]}" -q "${(Q)prefix}" < "$fifo" | $post | tr '\n' ' ')
   if [ -n "$matches" ]; then
     LBUFFER="$lbuf$matches"
   fi
-  zle redisplay
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
   command rm -f "$fifo"
 }
 
 _fzf_complete_telnet() {
-  _fzf_complete '+m' "$@" < <(
+  _fzf_complete +m -- "$@" < <(
     command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
 
 _fzf_complete_ssh() {
-  _fzf_complete '+m' "$@" < <(
-    command cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}') \
-        <(command grep -oE '^[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
+  _fzf_complete +m -- "$@" < <(
+    setopt localoptions nonomatch
+    command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?]') \
+        <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
         <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
 
 _fzf_complete_export() {
-  _fzf_complete '-m' "$@" < <(
+  _fzf_complete -m -- "$@" < <(
     declare -xp | sed 's/=.*//' | sed 's/.* //'
   )
 }
 
 _fzf_complete_unset() {
-  _fzf_complete '-m' "$@" < <(
+  _fzf_complete -m -- "$@" < <(
     declare -xp | sed 's/=.*//' | sed 's/.* //'
   )
 }
 
 _fzf_complete_unalias() {
-  _fzf_complete '+m' "$@" < <(
+  _fzf_complete +m -- "$@" < <(
     alias | sed 's/=.*//'
   )
 }
 
+_fzf_complete_kill() {
+  _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
+    command ps -ef | sed 1d
+  )
+}
+
+_fzf_complete_kill_post() {
+  awk '{print $2}'
+}
+
 fzf-completion() {
-  local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
+  local tokens cmd prefix trigger tail matches lbuf d_cmds
   setopt localoptions noshwordsplit noksh_arrays noposixbuiltins
 
   # http://zsh.sourceforge.net/FAQ/zshfaq03.html
@@ -153,31 +271,37 @@ fzf-completion() {
     return
   fi
 
-  cmd=${tokens[1]}
+  cmd=$(__fzf_extract_command "$LBUFFER")
 
   # Explicitly allow for empty trigger.
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
   [ -z "$trigger" -a ${LBUFFER[-1]} = ' ' ] && tokens+=("")
 
+  # When the trigger starts with ';', it becomes a separate token
+  if [[ ${LBUFFER} = *"${tokens[-2]}${tokens[-1]}" ]]; then
+    tokens[-2]="${tokens[-2]}${tokens[-1]}"
+    tokens=(${tokens[0,-2]})
+  fi
+
+  lbuf=$LBUFFER
   tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
   # Kill completion (do not require trigger sequence)
-  if [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
-    fzf="$(__fzfcmd_complete)"
-    matches=$(ps -ef | sed 1d | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-50%} --min-height 15 --reverse $FZF_DEFAULT_OPTS --preview 'echo {}' --preview-window down:3:wrap $FZF_COMPLETION_OPTS" ${=fzf} -m | awk '{print $2}' | tr '\n' ' ')
-    if [ -n "$matches" ]; then
-      LBUFFER="$LBUFFER$matches"
-    fi
-    zle redisplay
-    typeset -f zle-line-init >/dev/null && zle zle-line-init
+  if [ "$cmd" = kill -a ${LBUFFER[-1]} = ' ' ]; then
+    tail=$trigger
+    tokens+=$trigger
+    lbuf="$lbuf$trigger"
+  fi
+
   # Trigger sequence given
-  elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
+  if [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
     d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir})
 
     [ -z "$trigger"      ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
-    [ -z "${tokens[-1]}" ] && lbuf=$LBUFFER        || lbuf=${LBUFFER:0:-${#tokens[-1]}}
+    [ -n "${tokens[-1]}" ] && lbuf=${lbuf:0:-${#tokens[-1]}}
 
     if eval "type _fzf_complete_${cmd} > /dev/null"; then
-      eval "prefix=\"$prefix\" _fzf_complete_${cmd} \"$lbuf\""
+      prefix="$prefix" eval _fzf_complete_${cmd} ${(q)lbuf}
+      zle reset-prompt
     elif [ ${d_cmds[(i)$cmd]} -le ${#d_cmds} ]; then
       _fzf_dir_completion "$prefix" "$lbuf"
     else
@@ -197,3 +321,9 @@ fzf-completion() {
 
 zle     -N   fzf-completion
 bindkey '^I' fzf-completion
+
+} always {
+  # Restore the original options.
+  eval $__fzf_completion_options
+  'unset' '__fzf_completion_options'
+}

shell/key-bindings.bash

@@ -1,3 +1,16 @@
+#     ____      ____
+#    / __/___  / __/
+#   / /_/_  / / /_
+#  / __/ / /_/ __/
+# /_/   /___/_/ key-bindings.bash
+#
+# - $FZF_TMUX_OPTS
+# - $FZF_CTRL_T_COMMAND
+# - $FZF_CTRL_T_OPTS
+# - $FZF_CTRL_R_OPTS
+# - $FZF_ALT_C_COMMAND
+# - $FZF_ALT_C_OPTS
+
 # Key bindings
 # ------------
 __fzf_select__() {
@@ -5,7 +18,7 @@ __fzf_select__() {
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | cut -b3-"}"
-  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" fzf -m "$@" | while read -r item; do
+  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" $(__fzfcmd) -m "$@" | while read -r item; do
     printf '%q ' "$item"
   done
   echo
@@ -13,109 +26,71 @@ __fzf_select__() {
 
 if [[ $- =~ i ]]; then
 
-__fzf_use_tmux__() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
-}
-
 __fzfcmd() {
-  __fzf_use_tmux__ &&
-    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
-}
-
-__fzf_select_tmux__() {
-  local height
-  height=${FZF_TMUX_HEIGHT:-40%}
-  if [[ $height =~ %$ ]]; then
-    height="-p ${height%\%}"
-  else
-    height="-l $height"
-  fi
-
-  tmux split-window $height "cd $(printf %q "$PWD"); FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS") PATH=$(printf %q "$PATH") FZF_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") FZF_CTRL_T_OPTS=$(printf %q "$FZF_CTRL_T_OPTS") bash -c 'source \"${BASH_SOURCE[0]}\"; RESULT=\"\$(__fzf_select__ --no-height)\"; tmux setb -b fzf \"\$RESULT\" \\; pasteb -b fzf -t $TMUX_PANE \\; deleteb -b fzf || tmux send-keys -t $TMUX_PANE \"\$RESULT\"'"
+  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
+    echo "fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- " || echo "fzf"
 }
 
 fzf-file-widget() {
-  if __fzf_use_tmux__; then
-    __fzf_select_tmux__
-  else
-    local selected="$(__fzf_select__)"
-    READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$selected${READLINE_LINE:$READLINE_POINT}"
-    READLINE_POINT=$(( READLINE_POINT + ${#selected} ))
-  fi
+  local selected="$(__fzf_select__)"
+  READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$selected${READLINE_LINE:$READLINE_POINT}"
+  READLINE_POINT=$(( READLINE_POINT + ${#selected} ))
 }
 
 __fzf_cd__() {
   local cmd dir
   cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
     -o -type d -print 2> /dev/null | cut -b3-"}"
-  dir=$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m) && printf 'cd %q' "$dir"
+  dir=$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m) && printf 'cd %q' "$dir"
 }
 
-__fzf_history__() (
-  local line
-  shopt -u nocaseglob nocasematch
-  line=$(
-    HISTTIMEFORMAT= history |
-    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS --tac -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m" $(__fzfcmd) |
-    command grep '^ *[0-9]') &&
-    if [[ $- =~ H ]]; then
-      sed 's/^ *\([0-9]*\)\** .*/!\1/' <<< "$line"
-    else
-      sed 's/^ *\([0-9]*\)\** *//' <<< "$line"
-    fi
-)
-
-if [[ ! -o vi ]]; then
-  # Required to refresh the prompt after fzf
-  bind '"\er": redraw-current-line'
-  bind '"\e^": history-expand-line'
-
-  # CTRL-T - Paste the selected file path into the command line
-  if [ $BASH_VERSINFO -gt 3 ]; then
-    bind -x '"\C-t": "fzf-file-widget"'
-  elif __fzf_use_tmux__; then
-    bind '"\C-t": " \C-u \C-a\C-k`__fzf_select_tmux__`\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
+__fzf_history__() {
+  local output
+  output=$(
+    builtin fc -lnr -2147483648 |
+      last_hist=$(HISTTIMEFORMAT='' builtin history 1) perl -n -l0 -e 'BEGIN { getc; $/ = "\n\t"; $HISTCMD = $ENV{last_hist} + 1 } s/^[ *]//; print $HISTCMD - $. . "\t$_" if !$seen{$_}++' |
+      FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS +m --read0" $(__fzfcmd) --query "$READLINE_LINE"
+  ) || return
+  READLINE_LINE=${output#*$'\t'}
+  if [ -z "$READLINE_POINT" ]; then
+    echo "$READLINE_LINE"
   else
-    bind '"\C-t": " \C-u \C-a\C-k`__fzf_select__`\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
+    READLINE_POINT=0x7fffffff
   fi
+}
+
+# Required to refresh the prompt after fzf
+bind -m emacs-standard '"\er": redraw-current-line'
+
+bind -m vi-command '"\C-z": emacs-editing-mode'
+bind -m vi-insert '"\C-z": emacs-editing-mode'
+bind -m emacs-standard '"\C-z": vi-editing-mode'
+
+if [ "${BASH_VERSINFO[0]}" -lt 4 ]; then
+  # CTRL-T - Paste the selected file path into the command line
+  bind -m emacs-standard '"\C-t": " \C-b\C-k \C-u`__fzf_select__`\e\C-e\er\C-a\C-y\C-h\C-e\e \C-y\ey\C-x\C-x\C-f"'
+  bind -m vi-command '"\C-t": "\C-z\C-t\C-z"'
+  bind -m vi-insert '"\C-t": "\C-z\C-t\C-z"'
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": " \C-e\C-u`__fzf_history__`\e\C-e\e^\er"'
-
-  # ALT-C - cd into the selected directory
-  bind '"\ec": " \C-e\C-u`__fzf_cd__`\e\C-e\er\C-m"'
+  bind -m emacs-standard '"\C-r": "\C-e \C-u\C-y\ey\C-u"$(__fzf_history__)"\e\C-e\er"'
+  bind -m vi-command '"\C-r": "\C-z\C-r\C-z"'
+  bind -m vi-insert '"\C-r": "\C-z\C-r\C-z"'
 else
-  # We'd usually use "\e" to enter vi-movement-mode so we can do our magic,
-  # but this incurs a very noticeable delay of a half second or so,
-  # because many other commands start with "\e".
-  # Instead, we bind an unused key, "\C-x\C-a",
-  # to also enter vi-movement-mode,
-  # and then use that thereafter.
-  # (We imagine that "\C-x\C-a" is relatively unlikely to be in use.)
-  bind '"\C-x\C-a": vi-movement-mode'
-
-  bind '"\C-x\C-e": shell-expand-line'
-  bind '"\C-x\C-r": redraw-current-line'
-  bind '"\C-x^": history-expand-line'
-
   # CTRL-T - Paste the selected file path into the command line
-  # - FIXME: Selected items are attached to the end regardless of cursor position
-  if [ $BASH_VERSINFO -gt 3 ]; then
-    bind -x '"\C-t": "fzf-file-widget"'
-  elif __fzf_use_tmux__; then
-    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi`__fzf_select_tmux__`\C-x\C-e\C-x\C-a0P$xa"'
-  else
-    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi`__fzf_select__`\C-x\C-e\C-x\C-a0Px$a \C-x\C-r\C-x\C-axa "'
-  fi
-  bind -m vi-command '"\C-t": "i\C-t"'
+  bind -m emacs-standard -x '"\C-t": fzf-file-widget'
+  bind -m vi-command -x '"\C-t": fzf-file-widget'
+  bind -m vi-insert -x '"\C-t": fzf-file-widget'
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": "\C-x\C-addi`__fzf_history__`\C-x\C-e\C-x^\C-x\C-a$a\C-x\C-r"'
-  bind -m vi-command '"\C-r": "i\C-r"'
-
-  # ALT-C - cd into the selected directory
-  bind '"\ec": "\C-x\C-addi`__fzf_cd__`\C-x\C-e\C-x\C-r\C-m"'
-  bind -m vi-command '"\ec": "ddi`__fzf_cd__`\C-x\C-e\C-x\C-r\C-m"'
+  bind -m emacs-standard -x '"\C-r": __fzf_history__'
+  bind -m vi-command -x '"\C-r": __fzf_history__'
+  bind -m vi-insert -x '"\C-r": __fzf_history__'
 fi
 
+# ALT-C - cd into the selected directory
+bind -m emacs-standard '"\ec": " \C-b\C-k \C-u`__fzf_cd__`\e\C-e\er\C-m\C-y\C-h\e \C-y\ey\C-x\C-x\C-d"'
+bind -m vi-command '"\ec": "\C-z\ec\C-z"'
+bind -m vi-insert '"\ec": "\C-z\ec\C-z"'
+
 fi

shell/key-bindings.fish

@@ -1,3 +1,16 @@
+#     ____      ____
+#    / __/___  / __/
+#   / /_/_  / / /_
+#  / __/ / /_/ __/
+# /_/   /___/_/ key-bindings.fish
+#
+# - $FZF_TMUX_OPTS
+# - $FZF_CTRL_T_COMMAND
+# - $FZF_CTRL_T_OPTS
+# - $FZF_CTRL_R_OPTS
+# - $FZF_ALT_C_COMMAND
+# - $FZF_ALT_C_OPTS
+
 # Key bindings
 # ------------
 function fzf_key_bindings
@@ -7,18 +20,19 @@ function fzf_key_bindings
     set -l commandline (__fzf_parse_commandline)
     set -l dir $commandline[1]
     set -l fzf_query $commandline[2]
+    set -l prefix $commandline[3]
 
     # "-path \$dir'*/\\.*'" matches hidden files/folders inside $dir but not
     # $dir itself, even if hidden.
-    set -q FZF_CTRL_T_COMMAND; or set -l FZF_CTRL_T_COMMAND "
+    test -n "$FZF_CTRL_T_COMMAND"; or set -l FZF_CTRL_T_COMMAND "
     command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | sed 's@^\./@@'"
 
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
+    test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     begin
-      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS"
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS"
       eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)' -m --query "'$fzf_query'"' | while read -l r; set result $result $r; end
     end
     if [ -z "$result" ]
@@ -29,6 +43,7 @@ function fzf_key_bindings
       commandline -t ""
     end
     for i in $result
+      commandline -it -- $prefix
       commandline -it -- (string escape $i)
       commandline -it -- ' '
     end
@@ -36,18 +51,18 @@ function fzf_key_bindings
   end
 
   function fzf-history-widget -d "Show command history"
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
+    test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     begin
-      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT $FZF_DEFAULT_OPTS --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m"
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT $FZF_DEFAULT_OPTS --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS +m"
 
-      set -l FISH_MAJOR (echo $FISH_VERSION | cut -f1 -d.)
-      set -l FISH_MINOR (echo $FISH_VERSION | cut -f2 -d.)
+      set -l FISH_MAJOR (echo $version | cut -f1 -d.)
+      set -l FISH_MINOR (echo $version | cut -f2 -d.)
 
       # history's -z flag is needed for multi-line support.
       # history's -z flag was added in fish 2.4.0, so don't use it for versions
       # before 2.4.0.
       if [ "$FISH_MAJOR" -gt 2 -o \( "$FISH_MAJOR" -eq 2 -a "$FISH_MINOR" -ge 4 \) ];
-        history -z | eval (__fzfcmd) --read0 -q '(commandline)' | perl -pe 'chomp if eof' | read -lz result
+        history -z | eval (__fzfcmd) --read0 --print0 -q '(commandline)' | read -lz result
         and commandline -- $result
       else
         history | eval (__fzfcmd) -q '(commandline)' | read -l result
@@ -61,13 +76,14 @@ function fzf_key_bindings
     set -l commandline (__fzf_parse_commandline)
     set -l dir $commandline[1]
     set -l fzf_query $commandline[2]
+    set -l prefix $commandline[3]
 
-    set -q FZF_ALT_C_COMMAND; or set -l FZF_ALT_C_COMMAND "
+    test -n "$FZF_ALT_C_COMMAND"; or set -l FZF_ALT_C_COMMAND "
     command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
     -o -type d -print 2> /dev/null | sed 's@^\./@@'"
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
+    test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     begin
-      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS"
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS"
       eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)' +m --query "'$fzf_query'"' | read -l result
 
       if [ -n "$result" ]
@@ -75,6 +91,7 @@ function fzf_key_bindings
 
         # Remove last token from commandline.
         commandline -t ""
+        commandline -it -- $prefix
       end
     end
 
@@ -82,10 +99,12 @@ function fzf_key_bindings
   end
 
   function __fzfcmd
-    set -q FZF_TMUX; or set FZF_TMUX 0
-    set -q FZF_TMUX_HEIGHT; or set FZF_TMUX_HEIGHT 40%
-    if [ $FZF_TMUX -eq 1 ]
-      echo "fzf-tmux -d$FZF_TMUX_HEIGHT"
+    test -n "$FZF_TMUX"; or set FZF_TMUX 0
+    test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
+    if [ -n "$FZF_TMUX_OPTS" ]
+      echo "fzf-tmux $FZF_TMUX_OPTS -- "
+    else if [ $FZF_TMUX -eq 1 ]
+      echo "fzf-tmux -d$FZF_TMUX_HEIGHT -- "
     else
       echo "fzf"
     end
@@ -101,9 +120,15 @@ function fzf_key_bindings
     bind -M insert \ec fzf-cd-widget
   end
 
-  function __fzf_parse_commandline -d 'Parse the current command line token and return split of existing filepath and rest of token'
+  function __fzf_parse_commandline -d 'Parse the current command line token and return split of existing filepath, fzf query, and optional -option= prefix'
+    set -l commandline (commandline -t)
+
+    # strip -option= from token if present
+    set -l prefix (string match -r -- '^-[^\s=]+=' $commandline)
+    set commandline (string replace -- "$prefix" '' $commandline)
+
     # eval is used to do shell expansion on paths
-    set -l commandline (eval "printf '%s' "(commandline -t))
+    eval set commandline $commandline
 
     if [ -z $commandline ]
       # Default to current directory with no --query
@@ -112,32 +137,33 @@ function fzf_key_bindings
     else
       set dir (__fzf_get_dir $commandline)
 
-      if [ "$dir" = "." -a (string sub -l 1 $commandline) != '.' ]
+      if [ "$dir" = "." -a (string sub -l 1 -- $commandline) != '.' ]
         # if $dir is "." but commandline is not a relative path, this means no file path found
         set fzf_query $commandline
       else
         # Also remove trailing slash after dir, to "split" input properly
-        set fzf_query (string replace -r "^$dir/?" '' "$commandline")
+        set fzf_query (string replace -r "^$dir/?" -- '' "$commandline")
       end
     end
 
     echo $dir
     echo $fzf_query
+    echo $prefix
   end
 
   function __fzf_get_dir -d 'Find the longest existing filepath from input string'
     set dir $argv
 
     # Strip all trailing slashes. Ignore if $dir is root dir (/)
-    if [ (string length $dir) -gt 1 ]
-      set dir (string replace -r '/*$' '' $dir)
+    if [ (string length -- $dir) -gt 1 ]
+      set dir (string replace -r '/*$' -- '' $dir)
     end
 
     # Iteratively check if dir exists and strip tail end of path
     while [ ! -d "$dir" ]
       # If path is absolute, this can keep going until ends up at /
       # If path is relative, this can keep going until entire input is consumed, dirname returns "."
-      set dir (dirname "$dir")
+      set dir (dirname -- "$dir")
     end
 
     echo $dir

shell/key-bindings.zsh

@@ -1,6 +1,42 @@
+#     ____      ____
+#    / __/___  / __/
+#   / /_/_  / / /_
+#  / __/ / /_/ __/
+# /_/   /___/_/ key-bindings.zsh
+#
+# - $FZF_TMUX_OPTS
+# - $FZF_CTRL_T_COMMAND
+# - $FZF_CTRL_T_OPTS
+# - $FZF_CTRL_R_OPTS
+# - $FZF_ALT_C_COMMAND
+# - $FZF_ALT_C_OPTS
+
 # Key bindings
 # ------------
-if [[ $- == *i* ]]; then
+
+# The code at the top and the bottom of this file is the same as in completion.zsh.
+# Refer to that file for explanation.
+if 'zmodload' 'zsh/parameter' 2>'/dev/null' && (( ${+options} )); then
+  __fzf_key_bindings_options="options=(${(j: :)${(kv)options[@]}})"
+else
+  () {
+    __fzf_key_bindings_options="setopt"
+    'local' '__fzf_opt'
+    for __fzf_opt in "${(@)${(@f)$(set -o)}%% *}"; do
+      if [[ -o "$__fzf_opt" ]]; then
+        __fzf_key_bindings_options+=" -o $__fzf_opt"
+      else
+        __fzf_key_bindings_options+=" +o $__fzf_opt"
+      fi
+    done
+  }
+fi
+
+'emulate' 'zsh' '-o' 'no_aliases'
+
+{
+
+[[ -o interactive ]] || return 0
 
 # CTRL-T - Paste the selected file path(s) into the command line
 __fsel() {
@@ -8,8 +44,9 @@ __fsel() {
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | cut -b3-"}"
-  setopt localoptions pipefail 2> /dev/null
-  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" $(__fzfcmd) -m "$@" | while read item; do
+  setopt localoptions pipefail no_aliases 2> /dev/null
+  local item
+  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" $(__fzfcmd) -m "$@" | while read item; do
     echo -n "${(q)item} "
   done
   local ret=$?
@@ -17,20 +54,15 @@ __fsel() {
   return $ret
 }
 
-__fzf_use_tmux__() {
-  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-0}" != 0 ] && [ ${LINES:-40} -gt 15 ]
-}
-
 __fzfcmd() {
-  __fzf_use_tmux__ &&
-    echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+  [ -n "$TMUX_PANE" ] && { [ "${FZF_TMUX:-0}" != 0 ] || [ -n "$FZF_TMUX_OPTS" ]; } &&
+    echo "fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- " || echo "fzf"
 }
 
 fzf-file-widget() {
   LBUFFER="${LBUFFER}$(__fsel)"
   local ret=$?
-  zle redisplay
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  zle reset-prompt
   return $ret
 }
 zle     -N   fzf-file-widget
@@ -40,16 +72,18 @@ bindkey '^T' fzf-file-widget
 fzf-cd-widget() {
   local cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
     -o -type d -print 2> /dev/null | cut -b3-"}"
-  setopt localoptions pipefail 2> /dev/null
-  local dir="$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m)"
+  setopt localoptions pipefail no_aliases 2> /dev/null
+  local dir="$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m)"
   if [[ -z "$dir" ]]; then
     zle redisplay
     return 0
   fi
-  cd "$dir"
+  zle push-line # Clear buffer. Auto-restored on next prompt.
+  BUFFER="cd ${(q)dir}"
+  zle accept-line
   local ret=$?
+  unset dir # ensure this doesn't end up appearing in prompt expansion
   zle reset-prompt
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
   return $ret
 }
 zle     -N    fzf-cd-widget
@@ -58,9 +92,9 @@ bindkey '\ec' fzf-cd-widget
 # CTRL-R - Paste the selected command from history into the command line
 fzf-history-widget() {
   local selected num
-  setopt localoptions noglobsubst noposixbuiltins pipefail 2> /dev/null
-  selected=( $(fc -l 1 |
-    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS --tac -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
+  setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2> /dev/null
+  selected=( $(fc -rl 1 | perl -ne 'print if !$seen{(/^\s*[0-9]+\**\s+(.*)/, $1)}++' |
+    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
   local ret=$?
   if [ -n "$selected" ]; then
     num=$selected[1]
@@ -68,11 +102,13 @@ fzf-history-widget() {
       zle vi-fetch-history -n $num
     fi
   fi
-  zle redisplay
-  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  zle reset-prompt
   return $ret
 }
 zle     -N   fzf-history-widget
 bindkey '^R' fzf-history-widget
 
-fi
+} always {
+  eval $__fzf_key_bindings_options
+  'unset' '__fzf_key_bindings_options'
+}

src/LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

src/algo/algo.go

@@ -371,7 +371,7 @@ func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input *util.
 	// The first occurrence of each character in the pattern
 	offset32, F := alloc32(offset32, slab, M)
 	// Rune array
-	offset32, T := alloc32(offset32, slab, N)
+	_, T := alloc32(offset32, slab, N)
 	input.CopyRunes(T)
 
 	// Phase 2. Calculate bonus for each point
@@ -453,7 +453,7 @@ func FuzzyMatchV2(caseSensitive bool, normalize bool, forward bool, input *util.
 	copy(H, H0[f0:lastIdx+1])
 
 	// Possible length of consecutive chunk at each position.
-	offset16, C := alloc16(offset16, slab, width*M)
+	_, C := alloc16(offset16, slab, width*M)
 	copy(C, C0[f0:lastIdx+1])
 
 	Fsub := F[1:]
@@ -773,12 +773,17 @@ func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Ch
 		return Result{0, 0, 0}, nil
 	}
 
-	if text.Length() < len(pattern) {
+	trimmedLen := 0
+	if !unicode.IsSpace(pattern[0]) {
+		trimmedLen = text.LeadingWhitespaces()
+	}
+
+	if text.Length()-trimmedLen < len(pattern) {
 		return Result{-1, -1, 0}, nil
 	}
 
 	for index, r := range pattern {
-		char := text.Get(index)
+		char := text.Get(trimmedLen + index)
 		if !caseSensitive {
 			char = unicode.ToLower(char)
 		}
@@ -790,14 +795,17 @@ func PrefixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Ch
 		}
 	}
 	lenPattern := len(pattern)
-	score, _ := calculateScore(caseSensitive, normalize, text, pattern, 0, lenPattern, false)
-	return Result{0, lenPattern, score}, nil
+	score, _ := calculateScore(caseSensitive, normalize, text, pattern, trimmedLen, trimmedLen+lenPattern, false)
+	return Result{trimmedLen, trimmedLen + lenPattern, score}, nil
 }
 
 // SuffixMatch performs suffix-match
 func SuffixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	lenRunes := text.Length()
-	trimmedLen := lenRunes - text.TrailingWhitespaces()
+	trimmedLen := lenRunes
+	if len(pattern) == 0 || !unicode.IsSpace(pattern[len(pattern)-1]) {
+		trimmedLen -= text.TrailingWhitespaces()
+	}
 	if len(pattern) == 0 {
 		return Result{trimmedLen, trimmedLen, 0}, nil
 	}
@@ -828,14 +836,30 @@ func SuffixMatch(caseSensitive bool, normalize bool, forward bool, text *util.Ch
 // EqualMatch performs equal-match
 func EqualMatch(caseSensitive bool, normalize bool, forward bool, text *util.Chars, pattern []rune, withPos bool, slab *util.Slab) (Result, *[]int) {
 	lenPattern := len(pattern)
-	if text.Length() != lenPattern {
+	if lenPattern == 0 {
+		return Result{-1, -1, 0}, nil
+	}
+
+	// Strip leading whitespaces
+	trimmedLen := 0
+	if !unicode.IsSpace(pattern[0]) {
+		trimmedLen = text.LeadingWhitespaces()
+	}
+
+	// Strip trailing whitespaces
+	trimmedEndLen := 0
+	if !unicode.IsSpace(pattern[lenPattern-1]) {
+		trimmedEndLen = text.TrailingWhitespaces()
+	}
+
+	if text.Length()-trimmedLen-trimmedEndLen != lenPattern {
 		return Result{-1, -1, 0}, nil
 	}
 	match := true
 	if normalize {
 		runes := text.ToRunes()
 		for idx, pchar := range pattern {
-			char := runes[idx]
+			char := runes[trimmedLen+idx]
 			if !caseSensitive {
 				char = unicode.To(unicode.LowerCase, char)
 			}
@@ -845,14 +869,15 @@ func EqualMatch(caseSensitive bool, normalize bool, forward bool, text *util.Cha
 			}
 		}
 	} else {
-		runesStr := text.ToString()
+		runes := text.ToRunes()
+		runesStr := string(runes[trimmedLen : len(runes)-trimmedEndLen])
 		if !caseSensitive {
 			runesStr = strings.ToLower(runesStr)
 		}
 		match = runesStr == string(pattern)
 	}
 	if match {
-		return Result{0, lenPattern, (scoreMatch+bonusBoundary)*lenPattern +
+		return Result{trimmedLen, trimmedLen + lenPattern, (scoreMatch+bonusBoundary)*lenPattern +
 			(bonusFirstCharMultiplier-1)*bonusBoundary}, nil
 	}
 	return Result{-1, -1, 0}, nil

src/algo/algo_test.go

@@ -136,6 +136,10 @@ func TestPrefixMatch(t *testing.T) {
 		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3, score)
 		assertMatch(t, PrefixMatch, false, dir, "foOBarBaZ", "foo", 0, 3, score)
 		assertMatch(t, PrefixMatch, false, dir, "f-oBarbaz", "f-o", 0, 3, score)
+
+		assertMatch(t, PrefixMatch, false, dir, " fooBar", "foo", 1, 4, score)
+		assertMatch(t, PrefixMatch, false, dir, " fooBar", " fo", 0, 3, score)
+		assertMatch(t, PrefixMatch, false, dir, "     fo", "foo", -1, -1, 0)
 	}
 }
 
@@ -148,6 +152,13 @@ func TestSuffixMatch(t *testing.T) {
 			scoreMatch*3+bonusConsecutive*2)
 		assertMatch(t, SuffixMatch, false, dir, "fooBarBaZ", "baz", 6, 9,
 			(scoreMatch+bonusCamel123)*3+bonusCamel123*(bonusFirstCharMultiplier-1))
+
+		// Strip trailing white space from the string
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz ", "baz", 6, 9,
+			scoreMatch*3+bonusConsecutive*2)
+		// Only when the pattern doesn't end with a space
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz ", "baz ", 6, 10,
+			scoreMatch*4+bonusConsecutive*2+bonusNonWord)
 	}
 }
 

src/algo/normalize.go

@@ -405,6 +405,74 @@ var normalized map[rune]rune = map[rune]rune{
 	0x024E: 'Y', //  WITH STROKE, LATIN CAPITAL LETTER
 	0x028F: 'Y', // , LATIN LETTER SMALL CAPITAL
 	0x1D22: 'Z', // , LATIN LETTER SMALL CAPITAL
+
+	'Ắ': 'A',
+	'Ấ': 'A',
+	'Ằ': 'A',
+	'Ầ': 'A',
+	'Ẳ': 'A',
+	'Ẩ': 'A',
+	'Ẵ': 'A',
+	'Ẫ': 'A',
+	'Ặ': 'A',
+	'Ậ': 'A',
+
+	'ắ': 'a',
+	'ấ': 'a',
+	'ằ': 'a',
+	'ầ': 'a',
+	'ẳ': 'a',
+	'ẩ': 'a',
+	'ẵ': 'a',
+	'ẫ': 'a',
+	'ặ': 'a',
+	'ậ': 'a',
+
+	'Ế': 'E',
+	'Ề': 'E',
+	'Ể': 'E',
+	'Ễ': 'E',
+	'Ệ': 'E',
+
+	'ế': 'e',
+	'ề': 'e',
+	'ể': 'e',
+	'ễ': 'e',
+	'ệ': 'e',
+
+	'Ố': 'O',
+	'Ớ': 'O',
+	'Ồ': 'O',
+	'Ờ': 'O',
+	'Ổ': 'O',
+	'Ở': 'O',
+	'Ỗ': 'O',
+	'Ỡ': 'O',
+	'Ộ': 'O',
+	'Ợ': 'O',
+
+	'ố': 'o',
+	'ớ': 'o',
+	'ồ': 'o',
+	'ờ': 'o',
+	'ổ': 'o',
+	'ở': 'o',
+	'ỗ': 'o',
+	'ỡ': 'o',
+	'ộ': 'o',
+	'ợ': 'o',
+
+	'Ứ': 'U',
+	'Ừ': 'U',
+	'Ử': 'U',
+	'Ữ': 'U',
+	'Ự': 'U',
+
+	'ứ': 'u',
+	'ừ': 'u',
+	'ử': 'u',
+	'ữ': 'u',
+	'ự': 'u',
 }
 
 // NormalizeRunes normalizes latin script letters

src/ansi.go

@@ -1,8 +1,6 @@
 package fzf
 
 import (
-	"bytes"
-	"regexp"
 	"strconv"
 	"strings"
 	"unicode/utf8"
@@ -19,85 +17,217 @@ type ansiState struct {
 	fg   tui.Color
 	bg   tui.Color
 	attr tui.Attr
+	lbg  tui.Color
 }
 
 func (s *ansiState) colored() bool {
-	return s.fg != -1 || s.bg != -1 || s.attr > 0
+	return s.fg != -1 || s.bg != -1 || s.attr > 0 || s.lbg >= 0
 }
 
 func (s *ansiState) equals(t *ansiState) bool {
 	if t == nil {
 		return !s.colored()
 	}
-	return s.fg == t.fg && s.bg == t.bg && s.attr == t.attr
+	return s.fg == t.fg && s.bg == t.bg && s.attr == t.attr && s.lbg == t.lbg
 }
 
-var ansiRegex *regexp.Regexp
+func (s *ansiState) ToString() string {
+	if !s.colored() {
+		return ""
+	}
 
-func init() {
-	/*
-		References:
-		- https://github.com/gnachman/iTerm2
-		- http://ascii-table.com/ansi-escape-sequences.php
-		- http://ascii-table.com/ansi-escape-sequences-vt-100.php
-		- http://tldp.org/HOWTO/Bash-Prompt-HOWTO/x405.html
-	*/
-	// The following regular expression will include not all but most of the
-	// frequently used ANSI sequences
-	ansiRegex = regexp.MustCompile("(?:\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b.|[\x0e\x0f]|.\x08)")
+	ret := ""
+	if s.attr&tui.Bold > 0 {
+		ret += "1;"
+	}
+	if s.attr&tui.Dim > 0 {
+		ret += "2;"
+	}
+	if s.attr&tui.Italic > 0 {
+		ret += "3;"
+	}
+	if s.attr&tui.Underline > 0 {
+		ret += "4;"
+	}
+	if s.attr&tui.Blink > 0 {
+		ret += "5;"
+	}
+	if s.attr&tui.Reverse > 0 {
+		ret += "7;"
+	}
+	ret += toAnsiString(s.fg, 30) + toAnsiString(s.bg, 40)
+
+	return "\x1b[" + strings.TrimSuffix(ret, ";") + "m"
 }
 
-func findAnsiStart(str string) int {
-	idx := 0
-	for ; idx < len(str); idx++ {
-		b := str[idx]
-		if b == 0x1b || b == 0x0e || b == 0x0f {
-			return idx
+func toAnsiString(color tui.Color, offset int) string {
+	col := int(color)
+	ret := ""
+	if col == -1 {
+		ret += strconv.Itoa(offset + 9)
+	} else if col < 8 {
+		ret += strconv.Itoa(offset + col)
+	} else if col < 16 {
+		ret += strconv.Itoa(offset - 30 + 90 + col - 8)
+	} else if col < 256 {
+		ret += strconv.Itoa(offset+8) + ";5;" + strconv.Itoa(col)
+	} else if col >= (1 << 24) {
+		r := strconv.Itoa((col >> 16) & 0xff)
+		g := strconv.Itoa((col >> 8) & 0xff)
+		b := strconv.Itoa(col & 0xff)
+		ret += strconv.Itoa(offset+8) + ";2;" + r + ";" + g + ";" + b
+	}
+	return ret + ";"
+}
+
+func isPrint(c uint8) bool {
+	return '\x20' <= c && c <= '\x7e'
+}
+
+func matchOperatingSystemCommand(s string) int {
+	// `\x1b][0-9];[[:print:]]+(?:\x1b\\\\|\x07)`
+	//                        ^ match starting here
+	//
+	i := 5 // prefix matched in nextAnsiEscapeSequence()
+	for ; i < len(s) && isPrint(s[i]); i++ {
+	}
+	if i < len(s) {
+		if s[i] == '\x07' {
+			return i + 1
 		}
-		if b == 0x08 && idx > 0 {
-			return idx - 1
+		if s[i] == '\x1b' && i < len(s)-1 && s[i+1] == '\\' {
+			return i + 2
 		}
 	}
-	return idx
+	return -1
+}
+
+func matchControlSequence(s string) int {
+	// `\x1b[\\[()][0-9;?]*[a-zA-Z@]`
+	//                    ^ match starting here
+	//
+	i := 2 // prefix matched in nextAnsiEscapeSequence()
+	for ; i < len(s) && (isNumeric(s[i]) || s[i] == ';' || s[i] == '?'); i++ {
+	}
+	if i < len(s) {
+		c := s[i]
+		if 'a' <= c && c <= 'z' || 'A' <= c && c <= 'Z' || c == '@' {
+			return i + 1
+		}
+	}
+	return -1
+}
+
+func isCtrlSeqStart(c uint8) bool {
+	return c == '\\' || c == '[' || c == '(' || c == ')'
+}
+
+// nextAnsiEscapeSequence returns the ANSI escape sequence and is equivalent to
+// calling FindStringIndex() on the below regex (which was originally used):
+//
+// "(?:\x1b[\\[()][0-9;?]*[a-zA-Z@]|\x1b][0-9];[[:print:]]+(?:\x1b\\\\|\x07)|\x1b.|[\x0e\x0f]|.\x08)"
+//
+func nextAnsiEscapeSequence(s string) (int, int) {
+	// fast check for ANSI escape sequences
+	i := 0
+	for ; i < len(s); i++ {
+		switch s[i] {
+		case '\x0e', '\x0f', '\x1b', '\x08':
+			// We ignore the fact that '\x08' cannot be the first char
+			// in the string and be an escape sequence for the sake of
+			// speed and simplicity.
+			goto Loop
+		}
+	}
+	return -1, -1
+
+Loop:
+	for ; i < len(s); i++ {
+		switch s[i] {
+		case '\x08':
+			// backtrack to match: `.\x08`
+			if i > 0 && s[i-1] != '\n' {
+				if s[i-1] < utf8.RuneSelf {
+					return i - 1, i + 1
+				}
+				_, n := utf8.DecodeLastRuneInString(s[:i])
+				return i - n, i + 1
+			}
+		case '\x1b':
+			// match: `\x1b[\\[()][0-9;?]*[a-zA-Z@]`
+			if i+2 < len(s) && isCtrlSeqStart(s[i+1]) {
+				if j := matchControlSequence(s[i:]); j != -1 {
+					return i, i + j
+				}
+			}
+
+			// match: `\x1b][0-9];[[:print:]]+(?:\x1b\\\\|\x07)`
+			if i+5 < len(s) && s[i+1] == ']' && isNumeric(s[i+2]) &&
+				s[i+3] == ';' && isPrint(s[i+4]) {
+
+				if j := matchOperatingSystemCommand(s[i:]); j != -1 {
+					return i, i + j
+				}
+			}
+
+			// match: `\x1b.`
+			if i+1 < len(s) && s[i+1] != '\n' {
+				if s[i+1] < utf8.RuneSelf {
+					return i, i + 2
+				}
+				_, n := utf8.DecodeRuneInString(s[i+1:])
+				return i, i + n + 1
+			}
+		case '\x0e', '\x0f':
+			// match: `[\x0e\x0f]`
+			return i, i + 1
+		}
+	}
+	return -1, -1
 }
 
 func extractColor(str string, state *ansiState, proc func(string, *ansiState) bool) (string, *[]ansiOffset, *ansiState) {
-	var offsets []ansiOffset
-	var output bytes.Buffer
+	// We append to a stack allocated variable that we'll
+	// later copy and return, to save on allocations.
+	offsets := make([]ansiOffset, 0, 32)
 
 	if state != nil {
 		offsets = append(offsets, ansiOffset{[2]int32{0, 0}, *state})
 	}
 
-	prevIdx := 0
-	runeCount := 0
+	var (
+		pstate    *ansiState // lazily allocated
+		output    strings.Builder
+		prevIdx   int
+		runeCount int
+	)
 	for idx := 0; idx < len(str); {
-		idx += findAnsiStart(str[idx:])
-		if idx == len(str) {
+		// Make sure that we found an ANSI code
+		start, end := nextAnsiEscapeSequence(str[idx:])
+		if start == -1 {
 			break
 		}
-
-		// Make sure that we found an ANSI code
-		offset := ansiRegex.FindStringIndex(str[idx:])
-		if len(offset) < 2 {
-			idx++
-			continue
-		}
-		offset[0] += idx
-		offset[1] += idx
-		idx = offset[1]
+		start += idx
+		idx += end
 
 		// Check if we should continue
-		prev := str[prevIdx:offset[0]]
+		prev := str[prevIdx:start]
 		if proc != nil && !proc(prev, state) {
 			return "", nil, nil
 		}
+		prevIdx = idx
 
-		prevIdx = offset[1]
-		runeCount += utf8.RuneCountInString(prev)
-		output.WriteString(prev)
+		if len(prev) != 0 {
+			runeCount += utf8.RuneCountInString(prev)
+			// Grow the buffer size to the maximum possible length (string length
+			// containing ansi codes) to avoid repetitive allocation
+			if output.Cap() == 0 {
+				output.Grow(len(str))
+			}
+			output.WriteString(prev)
+		}
 
-		newState := interpretCode(str[offset[0]:offset[1]], state)
+		newState := interpretCode(str[start:idx], state)
 		if !newState.equals(state) {
 			if state != nil {
 				// Update last offset
@@ -106,8 +236,15 @@ func extractColor(str string, state *ansiState, proc func(string, *ansiState) bo
 
 			if newState.colored() {
 				// Append new offset
-				state = newState
-				offsets = append(offsets, ansiOffset{[2]int32{int32(runeCount), int32(runeCount)}, *state})
+				if pstate == nil {
+					pstate = &ansiState{}
+				}
+				*pstate = newState
+				state = pstate
+				offsets = append(offsets, ansiOffset{
+					[2]int32{int32(runeCount), int32(runeCount)},
+					newState,
+				})
 			} else {
 				// Discard state
 				state = nil
@@ -117,7 +254,6 @@ func extractColor(str string, state *ansiState, proc func(string, *ansiState) bo
 
 	var rest string
 	var trimmed string
-
 	if prevIdx == 0 {
 		// No ANSI code found
 		rest = str
@@ -127,48 +263,75 @@ func extractColor(str string, state *ansiState, proc func(string, *ansiState) bo
 		output.WriteString(rest)
 		trimmed = output.String()
 	}
-	if len(rest) > 0 && state != nil {
-		// Update last offset
-		runeCount += utf8.RuneCountInString(rest)
-		(&offsets[len(offsets)-1]).offset[1] = int32(runeCount)
-	}
 	if proc != nil {
 		proc(rest, state)
 	}
-	if len(offsets) == 0 {
-		return trimmed, nil, state
+	if len(offsets) > 0 {
+		if len(rest) > 0 && state != nil {
+			// Update last offset
+			runeCount += utf8.RuneCountInString(rest)
+			(&offsets[len(offsets)-1]).offset[1] = int32(runeCount)
+		}
+		// Return a copy of the offsets slice
+		a := make([]ansiOffset, len(offsets))
+		copy(a, offsets)
+		return trimmed, &a, state
 	}
-	return trimmed, &offsets, state
+	return trimmed, nil, state
 }
 
-func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
-	// State
-	var state *ansiState
+func parseAnsiCode(s string) (int, string) {
+	var remaining string
+	if i := strings.IndexByte(s, ';'); i >= 0 {
+		remaining = s[i+1:]
+		s = s[:i]
+	}
+
+	if len(s) > 0 {
+		// Inlined version of strconv.Atoi() that only handles positive
+		// integers and does not allocate on error.
+		code := 0
+		for _, ch := range []byte(s) {
+			ch -= '0'
+			if ch > 9 {
+				return -1, remaining
+			}
+			code = code*10 + int(ch)
+		}
+		return code, remaining
+	}
+
+	return -1, remaining
+}
+
+func interpretCode(ansiCode string, prevState *ansiState) ansiState {
+	var state ansiState
 	if prevState == nil {
-		state = &ansiState{-1, -1, 0}
+		state = ansiState{-1, -1, 0, -1}
 	} else {
-		state = &ansiState{prevState.fg, prevState.bg, prevState.attr}
+		state = ansiState{prevState.fg, prevState.bg, prevState.attr, prevState.lbg}
 	}
 	if ansiCode[0] != '\x1b' || ansiCode[1] != '[' || ansiCode[len(ansiCode)-1] != 'm' {
+		if prevState != nil && strings.HasSuffix(ansiCode, "0K") {
+			state.lbg = prevState.bg
+		}
 		return state
 	}
 
-	ptr := &state.fg
-	state256 := 0
-
-	init := func() {
+	if len(ansiCode) <= 3 {
 		state.fg = -1
 		state.bg = -1
 		state.attr = 0
-		state256 = 0
+		return state
 	}
-
 	ansiCode = ansiCode[2 : len(ansiCode)-1]
-	if len(ansiCode) == 0 {
-		init()
-	}
-	for _, code := range strings.Split(ansiCode, ";") {
-		if num, err := strconv.Atoi(code); err == nil {
+
+	state256 := 0
+	ptr := &state.fg
+
+	for len(ansiCode) != 0 {
+		var num int
+		if num, ansiCode = parseAnsiCode(ansiCode); num != -1 {
 			switch state256 {
 			case 0:
 				switch num {
@@ -194,8 +357,15 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 					state.attr = state.attr | tui.Blink
 				case 7:
 					state.attr = state.attr | tui.Reverse
+				case 23: // tput rmso
+					state.attr = state.attr &^ tui.Italic
+				case 24: // tput rmul
+					state.attr = state.attr &^ tui.Underline
 				case 0:
-					init()
+					state.fg = -1
+					state.bg = -1
+					state.attr = 0
+					state256 = 0
 				default:
 					if num >= 30 && num <= 37 {
 						state.fg = tui.Color(num - 30)
@@ -231,6 +401,7 @@ func interpretCode(ansiCode string, prevState *ansiState) *ansiState {
 			}
 		}
 	}
+
 	if state256 > 0 {
 		*ptr = -1
 	}

src/ansi_test.go

@@ -2,11 +2,190 @@ package fzf
 
 import (
 	"fmt"
+	"math/rand"
+	"regexp"
+	"strings"
 	"testing"
+	"unicode/utf8"
 
 	"github.com/junegunn/fzf/src/tui"
 )
 
+// The following regular expression will include not all but most of the
+// frequently used ANSI sequences. This regex is used as a reference for
+// testing nextAnsiEscapeSequence().
+//
+// References:
+// 	- https://github.com/gnachman/iTerm2
+// 	- http://ascii-table.com/ansi-escape-sequences.php
+// 	- http://ascii-table.com/ansi-escape-sequences-vt-100.php
+// 	- http://tldp.org/HOWTO/Bash-Prompt-HOWTO/x405.html
+// 	- https://invisible-island.net/xterm/ctlseqs/ctlseqs.html
+var ansiRegexRefence = regexp.MustCompile("(?:\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b][0-9];[[:print:]]+(?:\x1b\\\\|\x07)|\x1b.|[\x0e\x0f]|.\x08)")
+
+func testParserReference(t testing.TB, str string) {
+	t.Helper()
+
+	toSlice := func(start, end int) []int {
+		if start == -1 {
+			return nil
+		}
+		return []int{start, end}
+	}
+
+	s := str
+	for i := 0; ; i++ {
+		got := toSlice(nextAnsiEscapeSequence(s))
+		exp := ansiRegexRefence.FindStringIndex(s)
+
+		equal := len(got) == len(exp)
+		if equal {
+			for i := 0; i < len(got); i++ {
+				if got[i] != exp[i] {
+					equal = false
+					break
+				}
+			}
+		}
+		if !equal {
+			var exps, gots []rune
+			if len(got) == 2 {
+				gots = []rune(s[got[0]:got[1]])
+			}
+			if len(exp) == 2 {
+				exps = []rune(s[exp[0]:exp[1]])
+			}
+			t.Errorf("%d: %q: got: %v (%q) want: %v (%q)", i, s, got, gots, exp, exps)
+			return
+		}
+		if len(exp) == 0 {
+			return
+		}
+		s = s[exp[1]:]
+	}
+}
+
+func TestNextAnsiEscapeSequence(t *testing.T) {
+	testStrs := []string{
+		"\x1b[0mhello world",
+		"\x1b[1mhello world",
+		"椙\x1b[1m椙",
+		"椙\x1b[1椙m椙",
+		"\x1b[1mhello \x1b[mw\x1b7o\x1b8r\x1b(Bl\x1b[2@d",
+		"\x1b[1mhello \x1b[Kworld",
+		"hello \x1b[34;45;1mworld",
+		"hello \x1b[34;45;1mwor\x1b[34;45;1mld",
+		"hello \x1b[34;45;1mwor\x1b[0mld",
+		"hello \x1b[34;48;5;233;1mwo\x1b[38;5;161mr\x1b[0ml\x1b[38;5;161md",
+		"hello \x1b[38;5;38;48;5;48;1mwor\x1b[38;5;48;48;5;38ml\x1b[0md",
+		"hello \x1b[32;1mworld",
+		"hello world",
+		"hello \x1b[0;38;5;200;48;5;100mworld",
+		"\x1b椙",
+		"椙\x08",
+		"\n\x08",
+		"X\x08",
+		"",
+		"\x1b]4;3;rgb:aa/bb/cc\x07 ",
+		"\x1b]4;3;rgb:aa/bb/cc\x1b\\ ",
+		ansiBenchmarkString,
+	}
+
+	for _, s := range testStrs {
+		testParserReference(t, s)
+	}
+}
+
+func TestNextAnsiEscapeSequence_Fuzz_Modified(t *testing.T) {
+	t.Parallel()
+	if testing.Short() {
+		t.Skip("short test")
+	}
+
+	testStrs := []string{
+		"\x1b[0mhello world",
+		"\x1b[1mhello world",
+		"椙\x1b[1m椙",
+		"椙\x1b[1椙m椙",
+		"\x1b[1mhello \x1b[mw\x1b7o\x1b8r\x1b(Bl\x1b[2@d",
+		"\x1b[1mhello \x1b[Kworld",
+		"hello \x1b[34;45;1mworld",
+		"hello \x1b[34;45;1mwor\x1b[34;45;1mld",
+		"hello \x1b[34;45;1mwor\x1b[0mld",
+		"hello \x1b[34;48;5;233;1mwo\x1b[38;5;161mr\x1b[0ml\x1b[38;5;161md",
+		"hello \x1b[38;5;38;48;5;48;1mwor\x1b[38;5;48;48;5;38ml\x1b[0md",
+		"hello \x1b[32;1mworld",
+		"hello world",
+		"hello \x1b[0;38;5;200;48;5;100mworld",
+		ansiBenchmarkString,
+	}
+
+	replacementBytes := [...]rune{'\x0e', '\x0f', '\x1b', '\x08'}
+
+	modifyString := func(s string, rr *rand.Rand) string {
+		n := rr.Intn(len(s))
+		b := []rune(s)
+		for ; n >= 0 && len(b) != 0; n-- {
+			i := rr.Intn(len(b))
+			switch x := rr.Intn(4); x {
+			case 0:
+				b = append(b[:i], b[i+1:]...)
+			case 1:
+				j := rr.Intn(len(replacementBytes) - 1)
+				b[i] = replacementBytes[j]
+			case 2:
+				x := rune(rr.Intn(utf8.MaxRune))
+				for !utf8.ValidRune(x) {
+					x = rune(rr.Intn(utf8.MaxRune))
+				}
+				b[i] = x
+			case 3:
+				b[i] = rune(rr.Intn(utf8.MaxRune)) // potentially invalid
+			default:
+				t.Fatalf("unsupported value: %d", x)
+			}
+		}
+		return string(b)
+	}
+
+	rr := rand.New(rand.NewSource(1))
+	for _, s := range testStrs {
+		for i := 1_000; i >= 0; i-- {
+			testParserReference(t, modifyString(s, rr))
+		}
+	}
+}
+
+func TestNextAnsiEscapeSequence_Fuzz_Random(t *testing.T) {
+	t.Parallel()
+
+	if testing.Short() {
+		t.Skip("short test")
+	}
+
+	randomString := func(rr *rand.Rand) string {
+		numChars := rand.Intn(50)
+		codePoints := make([]rune, numChars)
+		for i := 0; i < len(codePoints); i++ {
+			var r rune
+			for n := 0; n < 1000; n++ {
+				r = rune(rr.Intn(utf8.MaxRune))
+				// Allow 10% of runes to be invalid
+				if utf8.ValidRune(r) || rr.Float64() < 0.10 {
+					break
+				}
+			}
+			codePoints[i] = r
+		}
+		return string(codePoints)
+	}
+
+	rr := rand.New(rand.NewSource(1))
+	for i := 0; i < 100_000; i++ {
+		testParserReference(t, randomString(rr))
+	}
+}
+
 func TestExtractColor(t *testing.T) {
 	assert := func(offset ansiOffset, b int32, e int32, fg tui.Color, bg tui.Color, bold bool) {
 		var attr tui.Attr
@@ -26,7 +205,7 @@ func TestExtractColor(t *testing.T) {
 		output, ansiOffsets, newState := extractColor(src, state, nil)
 		state = newState
 		if output != "hello world" {
-			t.Errorf("Invalid output: %s %s", output, []rune(output))
+			t.Errorf("Invalid output: %s %v", output, []rune(output))
 		}
 		fmt.Println(src, ansiOffsets, clean)
 		assertion(ansiOffsets, state)
@@ -156,3 +335,92 @@ func TestExtractColor(t *testing.T) {
 		assert((*offsets)[1], 6, 11, 200, 100, false)
 	})
 }
+
+func TestAnsiCodeStringConversion(t *testing.T) {
+	assert := func(code string, prevState *ansiState, expected string) {
+		state := interpretCode(code, prevState)
+		if expected != state.ToString() {
+			t.Errorf("expected: %s, actual: %s",
+				strings.Replace(expected, "\x1b[", "\\x1b[", -1),
+				strings.Replace(state.ToString(), "\x1b[", "\\x1b[", -1))
+		}
+	}
+	assert("\x1b[m", nil, "")
+	assert("\x1b[m", &ansiState{attr: tui.Blink, lbg: -1}, "")
+
+	assert("\x1b[31m", nil, "\x1b[31;49m")
+	assert("\x1b[41m", nil, "\x1b[39;41m")
+
+	assert("\x1b[92m", nil, "\x1b[92;49m")
+	assert("\x1b[102m", nil, "\x1b[39;102m")
+
+	assert("\x1b[31m", &ansiState{fg: 4, bg: 4, lbg: -1}, "\x1b[31;44m")
+	assert("\x1b[1;2;31m", &ansiState{fg: 2, bg: -1, attr: tui.Reverse, lbg: -1}, "\x1b[1;2;7;31;49m")
+	assert("\x1b[38;5;100;48;5;200m", nil, "\x1b[38;5;100;48;5;200m")
+	assert("\x1b[48;5;100;38;5;200m", nil, "\x1b[38;5;200;48;5;100m")
+	assert("\x1b[48;5;100;38;2;10;20;30;1m", nil, "\x1b[1;38;2;10;20;30;48;5;100m")
+	assert("\x1b[48;5;100;38;2;10;20;30;7m",
+		&ansiState{attr: tui.Dim | tui.Italic, fg: 1, bg: 1},
+		"\x1b[2;3;7;38;2;10;20;30;48;5;100m")
+}
+
+func TestParseAnsiCode(t *testing.T) {
+	tests := []struct {
+		In, Exp string
+		N       int
+	}{
+		{"123", "", 123},
+		{"1a", "", -1},
+		{"1a;12", "12", -1},
+		{"12;a", "a", 12},
+		{"-2", "", -1},
+	}
+	for _, x := range tests {
+		n, s := parseAnsiCode(x.In)
+		if n != x.N || s != x.Exp {
+			t.Fatalf("%q: got: (%d %q) want: (%d %q)", x.In, n, s, x.N, x.Exp)
+		}
+	}
+}
+
+// kernel/bpf/preload/iterators/README
+const ansiBenchmarkString = "\x1b[38;5;81m\x1b[01;31m\x1b[Kkernel/\x1b[0m\x1b[38;5;81mbpf/" +
+	"\x1b[0m\x1b[38;5;81mpreload/\x1b[0m\x1b[38;5;81miterators/" +
+	"\x1b[0m\x1b[38;5;149mMakefile\x1b[m\x1b[K\x1b[0m"
+
+func BenchmarkNextAnsiEscapeSequence(b *testing.B) {
+	b.SetBytes(int64(len(ansiBenchmarkString)))
+	for i := 0; i < b.N; i++ {
+		s := ansiBenchmarkString
+		for {
+			_, o := nextAnsiEscapeSequence(s)
+			if o == -1 {
+				break
+			}
+			s = s[o:]
+		}
+	}
+}
+
+// Baseline test to compare the speed of nextAnsiEscapeSequence() to the
+// previously used regex based implementation.
+func BenchmarkNextAnsiEscapeSequence_Regex(b *testing.B) {
+	b.SetBytes(int64(len(ansiBenchmarkString)))
+	for i := 0; i < b.N; i++ {
+		s := ansiBenchmarkString
+		for {
+			a := ansiRegexRefence.FindStringIndex(s)
+			if len(a) == 0 {
+				break
+			}
+			s = s[a[1]:]
+		}
+	}
+}
+
+func BenchmarkExtractColor(b *testing.B) {
+	b.SetBytes(int64(len(ansiBenchmarkString)))
+	for i := 0; i < b.N; i++ {
+		extractColor(ansiBenchmarkString, nil, nil)
+	}
+}

src/cache_test.go

@@ -6,8 +6,8 @@ func TestChunkCache(t *testing.T) {
 	cache := NewChunkCache()
 	chunk1p := &Chunk{}
 	chunk2p := &Chunk{count: chunkSize}
-	items1 := []Result{Result{}}
-	items2 := []Result{Result{}, Result{}}
+	items1 := []Result{{}}
+	items2 := []Result{{}, {}}
 	cache.Add(chunk1p, "foo", items1)
 	cache.Add(chunk2p, "foo", items1)
 	cache.Add(chunk2p, "bar", items2)

src/chunklist.go

@@ -64,6 +64,13 @@ func (cl *ChunkList) Push(data []byte) bool {
 	return ret
 }
 
+// Clear clears the data
+func (cl *ChunkList) Clear() {
+	cl.mutex.Lock()
+	cl.chunks = nil
+	cl.mutex.Unlock()
+}
+
 // Snapshot returns immutable snapshot of the ChunkList
 func (cl *ChunkList) Snapshot() ([]*Chunk, int) {
 	cl.mutex.Lock()

src/constants.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"math"
 	"os"
 	"time"
 
@@ -8,9 +9,6 @@ import (
 )
 
 const (
-	// Current version
-	version = "0.17.1"
-
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
 	coordinatorDelayStep time.Duration = 10 * time.Millisecond
@@ -22,9 +20,14 @@ const (
 	readerPollIntervalMax  = 50 * time.Millisecond
 
 	// Terminal
-	initialDelay    = 20 * time.Millisecond
-	initialDelayTac = 100 * time.Millisecond
-	spinnerDuration = 200 * time.Millisecond
+	initialDelay      = 20 * time.Millisecond
+	initialDelayTac   = 100 * time.Millisecond
+	spinnerDuration   = 100 * time.Millisecond
+	previewCancelWait = 500 * time.Millisecond
+	previewChunkDelay = 100 * time.Millisecond
+	previewDelayed    = 500 * time.Millisecond
+	maxPatternLength  = 300
+	maxMulti          = math.MaxInt32
 
 	// Matcher
 	numPartitionsMultiplier = 8
@@ -55,11 +58,9 @@ var defaultCommand string
 
 func init() {
 	if !util.IsWindows() {
-		defaultCommand = `set -o pipefail; (command find -L . -mindepth 1 \( -path '*/\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \) -prune -o -type f -print -o -type l -print || command find -L . -mindepth 1 -path '*/\.*' -prune -o -type f -print -o -type l -print) 2> /dev/null | cut -b3-`
+		defaultCommand = `set -o pipefail; command find -L . -mindepth 1 \( -path '*/\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \) -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-`
 	} else if os.Getenv("TERM") == "cygwin" {
 		defaultCommand = `sh -c "command find -L . -mindepth 1 -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-"`
-	} else {
-		defaultCommand = `dir /s/b`
 	}
 }
 
@@ -72,9 +73,11 @@ const (
 	EvtSearchFin
 	EvtHeader
 	EvtReady
+	EvtQuit
 )
 
 const (
+	exitCancel    = -1
 	exitOk        = 0
 	exitNoMatch   = 1
 	exitError     = 2

src/core.go

@@ -3,7 +3,7 @@ Package fzf implements fzf, a command-line fuzzy finder.
 
 The MIT License (MIT)
 
-Copyright (c) 2017 Junegunn Choi
+Copyright (c) 2013-2021 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -43,7 +43,7 @@ Matcher  -> EvtHeader         -> Terminal (update header)
 */
 
 // Run starts fzf
-func Run(opts *Options, revision string) {
+func Run(opts *Options, version string, revision string) {
 	sort := opts.Sort > 0
 	sortCriteria = opts.Criteria
 
@@ -63,12 +63,14 @@ func Run(opts *Options, revision string) {
 	ansiProcessor := func(data []byte) (util.Chars, *[]ansiOffset) {
 		return util.ToChars(data), nil
 	}
+
+	var lineAnsiState, prevLineAnsiState *ansiState
 	if opts.Ansi {
-		if opts.Theme != nil {
-			var state *ansiState
+		if opts.Theme.Colored {
 			ansiProcessor = func(data []byte) (util.Chars, *[]ansiOffset) {
-				trimmed, offsets, newState := extractColor(string(data), state, nil)
-				state = newState
+				prevLineAnsiState = lineAnsiState
+				trimmed, offsets, newState := extractColor(string(data), lineAnsiState, nil)
+				lineAnsiState = newState
 				return util.ToChars([]byte(trimmed)), offsets
 			}
 		} else {
@@ -100,6 +102,22 @@ func Run(opts *Options, revision string) {
 	} else {
 		chunkList = NewChunkList(func(item *Item, data []byte) bool {
 			tokens := Tokenize(string(data), opts.Delimiter)
+			if opts.Ansi && opts.Theme.Colored && len(tokens) > 1 {
+				var ansiState *ansiState
+				if prevLineAnsiState != nil {
+					ansiStateDup := *prevLineAnsiState
+					ansiState = &ansiStateDup
+				}
+				for _, token := range tokens {
+					prevAnsiState := ansiState
+					_, _, ansiState = extractColor(token.text.ToString(), ansiState, nil)
+					if prevAnsiState != nil {
+						token.text.Prepend("\x1b[m" + prevAnsiState.ToString())
+					} else {
+						token.text.Prepend("\x1b[m")
+					}
+				}
+			}
 			trans := Transform(tokens, opts.WithNth)
 			transformed := joinTokens(trans)
 			if len(header) < opts.HeaderLines {
@@ -108,6 +126,7 @@ func Run(opts *Options, revision string) {
 				return false
 			}
 			item.text, item.colors = ansiProcessor([]byte(transformed))
+			item.text.TrimTrailingWhitespaces()
 			item.text.Index = itemIndex
 			item.origText = &data
 			itemIndex++
@@ -117,10 +136,11 @@ func Run(opts *Options, revision string) {
 
 	// Reader
 	streamingFilter := opts.Filter != nil && !sort && !opts.Tac && !opts.Sync
+	var reader *Reader
 	if !streamingFilter {
-		reader := NewReader(func(data []byte) bool {
+		reader = NewReader(func(data []byte) bool {
 			return chunkList.Push(data)
-		}, eventBox, opts.ReadZero)
+		}, eventBox, opts.ReadZero, opts.Filter == nil)
 		go reader.ReadSource()
 	}
 
@@ -149,6 +169,7 @@ func Run(opts *Options, revision string) {
 		}
 
 		pattern := patternBuilder([]rune(*opts.Filter))
+		matcher.sort = pattern.sortable
 
 		found := false
 		if streamingFilter {
@@ -163,7 +184,7 @@ func Run(opts *Options, revision string) {
 						}
 					}
 					return false
-				}, eventBox, opts.ReadZero)
+				}, eventBox, opts.ReadZero, false)
 			reader.ReadSource()
 		} else {
 			eventBox.Unwatch(EvtReadNew)
@@ -203,34 +224,75 @@ func Run(opts *Options, revision string) {
 
 	// Event coordination
 	reading := true
+	clearCache := util.Once(false)
+	clearSelection := util.Once(false)
 	ticks := 0
+	var nextCommand *string
+	restart := func(command string) {
+		reading = true
+		clearCache = util.Once(true)
+		clearSelection = util.Once(true)
+		chunkList.Clear()
+		header = make([]string, 0, opts.HeaderLines)
+		go reader.restart(command)
+	}
 	eventBox.Watch(EvtReadNew)
+	query := []rune{}
 	for {
 		delay := true
 		ticks++
+		input := func() []rune {
+			paused, input := terminal.Input()
+			if !paused {
+				query = input
+			}
+			return query
+		}
 		eventBox.Wait(func(events *util.Events) {
 			if _, fin := (*events)[EvtReadFin]; fin {
 				delete(*events, EvtReadNew)
 			}
 			for evt, value := range *events {
 				switch evt {
-
-				case EvtReadNew, EvtReadFin:
-					reading = reading && evt == EvtReadNew
-					snapshot, count := chunkList.Snapshot()
-					terminal.UpdateCount(count, !reading, value.(bool))
-					if opts.Sync {
-						terminal.UpdateList(PassMerger(&snapshot, opts.Tac))
+				case EvtQuit:
+					if reading {
+						reader.terminate()
 					}
-					matcher.Reset(snapshot, terminal.Input(), false, !reading, sort)
+					os.Exit(value.(int))
+				case EvtReadNew, EvtReadFin:
+					if evt == EvtReadFin && nextCommand != nil {
+						restart(*nextCommand)
+						nextCommand = nil
+						break
+					} else {
+						reading = reading && evt == EvtReadNew
+					}
+					snapshot, count := chunkList.Snapshot()
+					terminal.UpdateCount(count, !reading, value.(*string))
+					if opts.Sync {
+						opts.Sync = false
+						terminal.UpdateList(PassMerger(&snapshot, opts.Tac), false)
+					}
+					matcher.Reset(snapshot, input(), false, !reading, sort, clearCache())
 
 				case EvtSearchNew:
+					var command *string
 					switch val := value.(type) {
-					case bool:
-						sort = val
+					case searchRequest:
+						sort = val.sort
+						command = val.command
+					}
+					if command != nil {
+						if reading {
+							reader.terminate()
+							nextCommand = command
+						} else {
+							restart(*command)
+						}
+						break
 					}
 					snapshot, _ := chunkList.Snapshot()
-					matcher.Reset(snapshot, terminal.Input(), true, !reading, sort)
+					matcher.Reset(snapshot, input(), true, !reading, sort, clearCache())
 					delay = false
 
 				case EvtSearchProgress:
@@ -240,7 +302,9 @@ func Run(opts *Options, revision string) {
 					}
 
 				case EvtHeader:
-					terminal.UpdateHeader(value.([]string))
+					headerPadded := make([]string, opts.HeaderLines)
+					copy(headerPadded, value.([]string))
+					terminal.UpdateHeader(headerPadded)
 
 				case EvtSearchFin:
 					switch val := value.(type) {
@@ -270,7 +334,7 @@ func Run(opts *Options, revision string) {
 								terminal.startChan <- true
 							}
 						}
-						terminal.UpdateList(val)
+						terminal.UpdateList(val, clearSelection())
 					}
 				}
 			}

src/history.go

@@ -59,7 +59,7 @@ func (h *History) append(line string) error {
 
 	lines := append(h.lines[:len(h.lines)-1], line)
 	if len(lines) > h.maxSize {
-		lines = lines[len(lines)-h.maxSize : len(lines)]
+		lines = lines[len(lines)-h.maxSize:]
 	}
 	h.lines = append(lines, "")
 	return ioutil.WriteFile(h.path, []byte(strings.Join(h.lines, "\n")), 0600)

src/history_test.go

@@ -3,7 +3,6 @@ package fzf
 import (
 	"io/ioutil"
 	"os"
-	"os/user"
 	"runtime"
 	"testing"
 )
@@ -12,16 +11,12 @@ func TestHistory(t *testing.T) {
 	maxHistory := 50
 
 	// Invalid arguments
-	user, _ := user.Current()
 	var paths []string
 	if runtime.GOOS == "windows" {
 		// GOPATH should exist, so we shouldn't be able to override it
 		paths = []string{os.Getenv("GOPATH")}
 	} else {
 		paths = []string{"/etc", "/proc"}
-		if user.Name != "root" {
-			paths = append(paths, "/etc/sudoers")
-		}
 	}
 
 	for _, path := range paths {

src/matcher.go

@@ -12,10 +12,11 @@ import (
 
 // MatchRequest represents a search request
 type MatchRequest struct {
-	chunks  []*Chunk
-	pattern *Pattern
-	final   bool
-	sort    bool
+	chunks     []*Chunk
+	pattern    *Pattern
+	final      bool
+	sort       bool
+	clearCache bool
 }
 
 // Matcher is responsible for performing search
@@ -69,7 +70,7 @@ func (m *Matcher) Loop() {
 			events.Clear()
 		})
 
-		if request.sort != m.sort {
+		if request.sort != m.sort || request.clearCache {
 			m.sort = request.sort
 			m.mergerCache = make(map[string]*Merger)
 			clearChunkCache()
@@ -207,13 +208,13 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 			return nil, wait()
 		}
 
-		if time.Now().Sub(startedAt) > progressMinDuration {
+		if time.Since(startedAt) > progressMinDuration {
 			m.eventBox.Set(EvtSearchProgress, float32(count)/float32(numChunks))
 		}
 	}
 
 	partialResults := make([][]Result, numSlices)
-	for _ = range slices {
+	for range slices {
 		partialResult := <-resultChan
 		partialResults[partialResult.index] = partialResult.matches
 	}
@@ -221,7 +222,7 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 }
 
 // Reset is called to interrupt/signal the ongoing search
-func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool) {
+func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool, clearCache bool) {
 	pattern := m.patternBuilder(patternRunes)
 
 	var event util.EventType
@@ -230,5 +231,5 @@ func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final
 	} else {
 		event = reqRetry
 	}
-	m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort})
+	m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort && pattern.sortable, clearCache})
 }

src/merger.go

@@ -106,7 +106,6 @@ func (mg *Merger) mergedGet(idx int) Result {
 					minIdx = listIdx
 				}
 			}
-			mg.cursors[listIdx] = cursor
 		}
 
 		if minIdx >= 0 {

src/options_test.go

@@ -50,7 +50,7 @@ func TestDelimiterRegexString(t *testing.T) {
 		tokens[2].text.ToString() != "---*" ||
 		tokens[3].text.ToString() != "*" ||
 		tokens[4].text.ToString() != "---" {
-		t.Errorf("%s %s %d", delim, tokens, len(tokens))
+		t.Errorf("%s %v %d", delim, tokens, len(tokens))
 	}
 }
 
@@ -71,7 +71,7 @@ func TestSplitNth(t *testing.T) {
 		if len(ranges) != 1 ||
 			ranges[0].begin != rangeEllipsis ||
 			ranges[0].end != rangeEllipsis {
-			t.Errorf("%s", ranges)
+			t.Errorf("%v", ranges)
 		}
 	}
 	{
@@ -87,7 +87,7 @@ func TestSplitNth(t *testing.T) {
 			ranges[7].begin != -2 || ranges[7].end != -2 ||
 			ranges[8].begin != 2 || ranges[8].end != -2 ||
 			ranges[9].begin != rangeEllipsis || ranges[9].end != rangeEllipsis {
-			t.Errorf("%s", ranges)
+			t.Errorf("%v", ranges)
 		}
 	}
 }
@@ -99,16 +99,16 @@ func TestIrrelevantNth(t *testing.T) {
 		parseOptions(opts, words)
 		postProcessOptions(opts)
 		if len(opts.Nth) != 0 {
-			t.Errorf("nth should be empty: %s", opts.Nth)
+			t.Errorf("nth should be empty: %v", opts.Nth)
 		}
 	}
-	for _, words := range [][]string{[]string{"--nth", "..,3", "+x"}, []string{"--nth", "3,1..", "+x"}, []string{"--nth", "..-1,1", "+x"}} {
+	for _, words := range [][]string{{"--nth", "..,3", "+x"}, {"--nth", "3,1..", "+x"}, {"--nth", "..-1,1", "+x"}} {
 		{
 			opts := defaultOptions()
 			parseOptions(opts, words)
 			postProcessOptions(opts)
 			if len(opts.Nth) != 0 {
-				t.Errorf("nth should be empty: %s", opts.Nth)
+				t.Errorf("nth should be empty: %v", opts.Nth)
 			}
 		}
 		{
@@ -117,7 +117,7 @@ func TestIrrelevantNth(t *testing.T) {
 			parseOptions(opts, words)
 			postProcessOptions(opts)
 			if len(opts.Nth) != 2 {
-				t.Errorf("nth should not be empty: %s", opts.Nth)
+				t.Errorf("nth should not be empty: %v", opts.Nth)
 			}
 		}
 	}
@@ -125,26 +125,29 @@ func TestIrrelevantNth(t *testing.T) {
 
 func TestParseKeys(t *testing.T) {
 	pairs := parseKeyChords("ctrl-z,alt-z,f2,@,Alt-a,!,ctrl-G,J,g,ctrl-alt-a,ALT-enter,alt-SPACE", "")
-	check := func(i int, s string) {
-		if pairs[i] != s {
-			t.Errorf("%s != %s", pairs[i], s)
+	checkEvent := func(e tui.Event, s string) {
+		if pairs[e] != s {
+			t.Errorf("%s != %s", pairs[e], s)
 		}
 	}
+	check := func(et tui.EventType, s string) {
+		checkEvent(et.AsEvent(), s)
+	}
 	if len(pairs) != 12 {
 		t.Error(12)
 	}
 	check(tui.CtrlZ, "ctrl-z")
-	check(tui.AltZ, "alt-z")
 	check(tui.F2, "f2")
-	check(tui.AltZ+'@', "@")
-	check(tui.AltA, "Alt-a")
-	check(tui.AltZ+'!', "!")
-	check(tui.CtrlA+'g'-'a', "ctrl-G")
-	check(tui.AltZ+'J', "J")
-	check(tui.AltZ+'g', "g")
-	check(tui.CtrlAltA, "ctrl-alt-a")
-	check(tui.CtrlAltM, "ALT-enter")
-	check(tui.AltSpace, "alt-SPACE")
+	check(tui.CtrlG, "ctrl-G")
+	checkEvent(tui.AltKey('z'), "alt-z")
+	checkEvent(tui.Key('@'), "@")
+	checkEvent(tui.AltKey('a'), "Alt-a")
+	checkEvent(tui.Key('!'), "!")
+	checkEvent(tui.Key('J'), "J")
+	checkEvent(tui.Key('g'), "g")
+	checkEvent(tui.CtrlAltKey('a'), "ctrl-alt-a")
+	checkEvent(tui.CtrlAltKey('m'), "ALT-enter")
+	checkEvent(tui.AltKey(' '), "alt-SPACE")
 
 	// Synonyms
 	pairs = parseKeyChords("enter,Return,space,tab,btab,esc,up,down,left,right", "")
@@ -152,7 +155,7 @@ func TestParseKeys(t *testing.T) {
 		t.Error(9)
 	}
 	check(tui.CtrlM, "Return")
-	check(tui.AltZ+' ', "space")
+	checkEvent(tui.Key(' '), "space")
 	check(tui.Tab, "tab")
 	check(tui.BTab, "btab")
 	check(tui.ESC, "esc")
@@ -184,92 +187,98 @@ func TestParseKeysWithComma(t *testing.T) {
 			t.Errorf("%d != %d", a, b)
 		}
 	}
-	check := func(pairs map[int]string, i int, s string) {
-		if pairs[i] != s {
-			t.Errorf("%s != %s", pairs[i], s)
+	check := func(pairs map[tui.Event]string, e tui.Event, s string) {
+		if pairs[e] != s {
+			t.Errorf("%s != %s", pairs[e], s)
 		}
 	}
 
 	pairs := parseKeyChords(",", "")
 	checkN(len(pairs), 1)
-	check(pairs, tui.AltZ+',', ",")
+	check(pairs, tui.Key(','), ",")
 
 	pairs = parseKeyChords(",,a,b", "")
 	checkN(len(pairs), 3)
-	check(pairs, tui.AltZ+'a', "a")
-	check(pairs, tui.AltZ+'b', "b")
-	check(pairs, tui.AltZ+',', ",")
+	check(pairs, tui.Key('a'), "a")
+	check(pairs, tui.Key('b'), "b")
+	check(pairs, tui.Key(','), ",")
 
 	pairs = parseKeyChords("a,b,,", "")
 	checkN(len(pairs), 3)
-	check(pairs, tui.AltZ+'a', "a")
-	check(pairs, tui.AltZ+'b', "b")
-	check(pairs, tui.AltZ+',', ",")
+	check(pairs, tui.Key('a'), "a")
+	check(pairs, tui.Key('b'), "b")
+	check(pairs, tui.Key(','), ",")
 
 	pairs = parseKeyChords("a,,,b", "")
 	checkN(len(pairs), 3)
-	check(pairs, tui.AltZ+'a', "a")
-	check(pairs, tui.AltZ+'b', "b")
-	check(pairs, tui.AltZ+',', ",")
+	check(pairs, tui.Key('a'), "a")
+	check(pairs, tui.Key('b'), "b")
+	check(pairs, tui.Key(','), ",")
 
 	pairs = parseKeyChords("a,,,b,c", "")
 	checkN(len(pairs), 4)
-	check(pairs, tui.AltZ+'a', "a")
-	check(pairs, tui.AltZ+'b', "b")
-	check(pairs, tui.AltZ+'c', "c")
-	check(pairs, tui.AltZ+',', ",")
+	check(pairs, tui.Key('a'), "a")
+	check(pairs, tui.Key('b'), "b")
+	check(pairs, tui.Key('c'), "c")
+	check(pairs, tui.Key(','), ",")
 
 	pairs = parseKeyChords(",,,", "")
 	checkN(len(pairs), 1)
-	check(pairs, tui.AltZ+',', ",")
+	check(pairs, tui.Key(','), ",")
+
+	pairs = parseKeyChords(",ALT-,,", "")
+	checkN(len(pairs), 1)
+	check(pairs, tui.AltKey(','), "ALT-,")
 }
 
 func TestBind(t *testing.T) {
 	keymap := defaultKeymap()
-	check := func(keyName int, arg1 string, types ...actionType) {
-		if len(keymap[keyName]) != len(types) {
-			t.Errorf("invalid number of actions (%d != %d)", len(types), len(keymap[keyName]))
+	check := func(event tui.Event, arg1 string, types ...actionType) {
+		if len(keymap[event]) != len(types) {
+			t.Errorf("invalid number of actions for %v (%d != %d)",
+				event, len(types), len(keymap[event]))
 			return
 		}
-		for idx, action := range keymap[keyName] {
+		for idx, action := range keymap[event] {
 			if types[idx] != action.t {
 				t.Errorf("invalid action type (%d != %d)", types[idx], action.t)
 			}
 		}
-		if len(arg1) > 0 && keymap[keyName][0].a != arg1 {
-			t.Errorf("invalid action argument: (%s != %s)", arg1, keymap[keyName][0].a)
+		if len(arg1) > 0 && keymap[event][0].a != arg1 {
+			t.Errorf("invalid action argument: (%s != %s)", arg1, keymap[event][0].a)
 		}
 	}
-	check(tui.CtrlA, "", actBeginningOfLine)
+	check(tui.CtrlA.AsEvent(), "", actBeginningOfLine)
 	parseKeymap(keymap,
 		"ctrl-a:kill-line,ctrl-b:toggle-sort+up+down,c:page-up,alt-z:page-down,"+
-			"f1:execute(ls {})+abort,f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
+			"f1:execute(ls {+})+abort+execute(echo {+})+select-all,f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
 			"alt-a:execute-Multi@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};,"+
 			"x:Execute(foo+bar),X:execute/bar+baz/"+
+			",f1:+first,f1:+top"+
 			",,:abort,::accept,+:execute:++\nfoobar,Y:execute(baz)+up")
-	check(tui.CtrlA, "", actKillLine)
-	check(tui.CtrlB, "", actToggleSort, actUp, actDown)
-	check(tui.AltZ+'c', "", actPageUp)
-	check(tui.AltZ+',', "", actAbort)
-	check(tui.AltZ+':', "", actAccept)
-	check(tui.AltZ, "", actPageDown)
-	check(tui.F1, "ls {}", actExecute, actAbort)
-	check(tui.F2, "echo {}, {}, {}", actExecute)
-	check(tui.F3, "echo '({})'", actExecute)
-	check(tui.F4, "less {}", actExecute)
-	check(tui.AltZ+'x', "foo+bar", actExecute)
-	check(tui.AltZ+'X', "bar+baz", actExecute)
-	check(tui.AltA, "echo (,),[,],/,:,;,%,{}", actExecuteMulti)
-	check(tui.AltB, "echo (,),[,],/,:,@,%,{}", actExecute)
-	check(tui.AltZ+'+', "++\nfoobar,Y:execute(baz)+up", actExecute)
+	check(tui.CtrlA.AsEvent(), "", actKillLine)
+	check(tui.CtrlB.AsEvent(), "", actToggleSort, actUp, actDown)
+	check(tui.Key('c'), "", actPageUp)
+	check(tui.Key(','), "", actAbort)
+	check(tui.Key(':'), "", actAccept)
+	check(tui.AltKey('z'), "", actPageDown)
+	check(tui.F1.AsEvent(), "ls {+}", actExecute, actAbort, actExecute, actSelectAll, actFirst, actFirst)
+	check(tui.F2.AsEvent(), "echo {}, {}, {}", actExecute)
+	check(tui.F3.AsEvent(), "echo '({})'", actExecute)
+	check(tui.F4.AsEvent(), "less {}", actExecute)
+	check(tui.Key('x'), "foo+bar", actExecute)
+	check(tui.Key('X'), "bar+baz", actExecute)
+	check(tui.AltKey('a'), "echo (,),[,],/,:,;,%,{}", actExecuteMulti)
+	check(tui.AltKey('b'), "echo (,),[,],/,:,@,%,{}", actExecute)
+	check(tui.Key('+'), "++\nfoobar,Y:execute(baz)+up", actExecute)
 
 	for idx, char := range []rune{'~', '!', '@', '#', '$', '%', '^', '&', '*', '|', ';', '/'} {
 		parseKeymap(keymap, fmt.Sprintf("%d:execute%cfoobar%c", idx%10, char, char))
-		check(tui.AltZ+int([]rune(fmt.Sprintf("%d", idx%10))[0]), "foobar", actExecute)
+		check(tui.Key([]rune(fmt.Sprintf("%d", idx%10))[0]), "foobar", actExecute)
 	}
 
 	parseKeymap(keymap, "f1:abort")
-	check(tui.F1, "", actAbort)
+	check(tui.F1.AsEvent(), "", actAbort)
 }
 
 func TestColorSpec(t *testing.T) {
@@ -294,7 +303,7 @@ func TestColorSpec(t *testing.T) {
 	}
 
 	customized := parseTheme(theme, "fg:231,bg:232")
-	if customized.Fg != 231 || customized.Bg != 232 {
+	if customized.Fg.Color != 231 || customized.Bg.Color != 232 {
 		t.Errorf("color not customized")
 	}
 	if *tui.Dark256 == *customized {
@@ -312,24 +321,13 @@ func TestColorSpec(t *testing.T) {
 	}
 }
 
-func TestParseNilTheme(t *testing.T) {
-	var theme *tui.ColorTheme
-	newTheme := parseTheme(theme, "prompt:12")
-	if newTheme != nil {
-		t.Errorf("color is disabled. keep it that way.")
-	}
-	newTheme = parseTheme(theme, "prompt:12,dark,prompt:13")
-	if newTheme.Prompt != 13 {
-		t.Errorf("color should now be enabled and customized")
-	}
-}
-
 func TestDefaultCtrlNP(t *testing.T) {
-	check := func(words []string, key int, expected actionType) {
+	check := func(words []string, et tui.EventType, expected actionType) {
+		e := et.AsEvent()
 		opts := defaultOptions()
 		parseOptions(opts, words)
 		postProcessOptions(opts)
-		if opts.Keymap[key][0].t != expected {
+		if opts.Keymap[e][0].t != expected {
 			t.Error()
 		}
 	}
@@ -386,23 +384,26 @@ func TestPreviewOpts(t *testing.T) {
 		opts.Preview.size.size == 50) {
 		t.Error()
 	}
-	opts = optsFor("--preview", "cat {}", "--preview-window=left:15:hidden:wrap")
+	opts = optsFor("--preview", "cat {}", "--preview-window=left:15,hidden,wrap:+{1}-/2")
 	if !(opts.Preview.command == "cat {}" &&
 		opts.Preview.hidden == true &&
 		opts.Preview.wrap == true &&
 		opts.Preview.position == posLeft &&
+		opts.Preview.scroll == "+{1}-/2" &&
 		opts.Preview.size.percent == false &&
-		opts.Preview.size.size == 15+2+2) {
+		opts.Preview.size.size == 15) {
 		t.Error(opts.Preview)
 	}
-	opts = optsFor("--preview-window=up:15:wrap:hidden", "--preview-window=down")
+	opts = optsFor("--preview-window=up,15,wrap,hidden,+{1}+3-1-2/2", "--preview-window=down", "--preview-window=cycle")
 	if !(opts.Preview.command == "" &&
-		opts.Preview.hidden == false &&
-		opts.Preview.wrap == false &&
+		opts.Preview.hidden == true &&
+		opts.Preview.wrap == true &&
+		opts.Preview.cycle == true &&
 		opts.Preview.position == posDown &&
-		opts.Preview.size.percent == true &&
-		opts.Preview.size.size == 50) {
-		t.Error(opts.Preview)
+		opts.Preview.scroll == "+{1}+3-1-2/2" &&
+		opts.Preview.size.percent == false &&
+		opts.Preview.size.size == 15) {
+		t.Error(opts.Preview.size.size)
 	}
 	opts = optsFor("--preview-window=up:15:wrap:hidden")
 	if !(opts.Preview.command == "" &&
@@ -410,7 +411,14 @@ func TestPreviewOpts(t *testing.T) {
 		opts.Preview.wrap == true &&
 		opts.Preview.position == posUp &&
 		opts.Preview.size.percent == false &&
-		opts.Preview.size.size == 15+2) {
+		opts.Preview.size.size == 15) {
+		t.Error(opts.Preview)
+	}
+	opts = optsFor("--preview=foo", "--preview-window=up", "--preview-window=default:70%")
+	if !(opts.Preview.command == "foo" &&
+		opts.Preview.position == posRight &&
+		opts.Preview.size.percent == true &&
+		opts.Preview.size.size == 70) {
 		t.Error(opts.Preview)
 	}
 }
@@ -421,3 +429,29 @@ func TestAdditiveExpect(t *testing.T) {
 		t.Error(opts.Expect)
 	}
 }
+
+func TestValidateSign(t *testing.T) {
+	testCases := []struct {
+		inputSign string
+		isValid   bool
+	}{
+		{"> ", true},
+		{"아", true},
+		{"😀", true},
+		{"", false},
+		{">>>", false},
+		{"\n", false},
+		{"\t", false},
+	}
+
+	for _, testCase := range testCases {
+		err := validateSign(testCase.inputSign, "")
+		if testCase.isValid && err != nil {
+			t.Errorf("Input sign `%s` caused error", testCase.inputSign)
+		}
+
+		if !testCase.isValid && err == nil {
+			t.Errorf("Input sign `%s` did not cause error", testCase.inputSign)
+		}
+	}
+}

src/pattern.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"fmt"
 	"regexp"
 	"strings"
 
@@ -32,6 +33,12 @@ type term struct {
 	inv           bool
 	text          []rune
 	caseSensitive bool
+	normalize     bool
+}
+
+// String returns the string representation of a term.
+func (t term) String() string {
+	return fmt.Sprintf("term{typ: %d, inv: %v, text: []rune(%q), caseSensitive: %v}", t.typ, t.inv, string(t.text), t.caseSensitive)
 }
 
 type termSet []term
@@ -46,6 +53,7 @@ type Pattern struct {
 	forward       bool
 	text          []rune
 	termSets      []termSet
+	sortable      bool
 	cacheable     bool
 	cacheKey      string
 	delimiter     Delimiter
@@ -95,23 +103,34 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 	}
 
 	caseSensitive := true
+	sortable := true
 	termSets := []termSet{}
 
 	if extended {
 		termSets = parseTerms(fuzzy, caseMode, normalize, asString)
+		// We should not sort the result if there are only inverse search terms
+		sortable = false
 	Loop:
 		for _, termSet := range termSets {
 			for idx, term := range termSet {
+				if !term.inv {
+					sortable = true
+				}
 				// If the query contains inverse search terms or OR operators,
 				// we cannot cache the search scope
 				if !cacheable || idx > 0 || term.inv || fuzzy && term.typ != termFuzzy || !fuzzy && term.typ != termExact {
 					cacheable = false
-					break Loop
+					if sortable {
+						// Can't break until we see at least one non-inverse term
+						break Loop
+					}
 				}
 			}
 		}
 	} else {
 		lowerString := strings.ToLower(asString)
+		normalize = normalize &&
+			lowerString == string(algo.NormalizeRunes([]rune(lowerString)))
 		caseSensitive = caseMode == CaseRespect ||
 			caseMode == CaseSmart && lowerString != asString
 		if !caseSensitive {
@@ -128,6 +147,7 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 		forward:       forward,
 		text:          []rune(asString),
 		termSets:      termSets,
+		sortable:      sortable,
 		cacheable:     cacheable,
 		nth:           nth,
 		delimiter:     delimiter,
@@ -156,6 +176,8 @@ func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet
 		lowerText := strings.ToLower(text)
 		caseSensitive := caseMode == CaseRespect ||
 			caseMode == CaseSmart && text != lowerText
+		normalizeTerm := normalize &&
+			lowerText == string(algo.NormalizeRunes([]rune(lowerText)))
 		if !caseSensitive {
 			text = lowerText
 		}
@@ -205,14 +227,15 @@ func parseTerms(fuzzy bool, caseMode Case, normalize bool, str string) []termSet
 				set = termSet{}
 			}
 			textRunes := []rune(text)
-			if normalize {
+			if normalizeTerm {
 				textRunes = algo.NormalizeRunes(textRunes)
 			}
 			set = append(set, term{
 				typ:           typ,
 				inv:           inv,
 				text:          textRunes,
-				caseSensitive: caseSensitive})
+				caseSensitive: caseSensitive,
+				normalize:     normalizeTerm})
 			switchSet = true
 		}
 	}
@@ -314,7 +337,7 @@ func (p *Pattern) MatchItem(item *Item, withPos bool, slab *util.Slab) (*Result,
 func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset, int, *[]int) {
 	var input []Token
 	if len(p.nth) == 0 {
-		input = []Token{Token{text: &item.text, prefixLength: 0}}
+		input = []Token{{text: &item.text, prefixLength: 0}}
 	} else {
 		input = p.transformInput(item)
 	}
@@ -327,7 +350,7 @@ func (p *Pattern) basicMatch(item *Item, withPos bool, slab *util.Slab) (Offset,
 func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Offset, int, *[]int) {
 	var input []Token
 	if len(p.nth) == 0 {
-		input = []Token{Token{text: &item.text, prefixLength: 0}}
+		input = []Token{{text: &item.text, prefixLength: 0}}
 	} else {
 		input = p.transformInput(item)
 	}
@@ -343,7 +366,7 @@ func (p *Pattern) extendedMatch(item *Item, withPos bool, slab *util.Slab) ([]Of
 		matched := false
 		for _, term := range termSet {
 			pfun := p.procFun[term.typ]
-			off, score, pos := p.iter(pfun, input, term.caseSensitive, p.normalize, p.forward, term.text, withPos, slab)
+			off, score, pos := p.iter(pfun, input, term.caseSensitive, term.normalize, p.forward, term.text, withPos, slab)
 			if sidx := off[0]; sidx >= 0 {
 				if term.inv {
 					continue

src/pattern_test.go

@@ -31,12 +31,12 @@ func TestParseTermsExtended(t *testing.T) {
 		terms[8][1].typ != termExact || terms[8][1].inv ||
 		terms[8][2].typ != termSuffix || terms[8][2].inv ||
 		terms[8][3].typ != termExact || !terms[8][3].inv {
-		t.Errorf("%s", terms)
+		t.Errorf("%v", terms)
 	}
 	for _, termSet := range terms[:8] {
 		term := termSet[0]
 		if len(term.text) != 3 {
-			t.Errorf("%s", term)
+			t.Errorf("%v", term)
 		}
 	}
 }
@@ -53,14 +53,14 @@ func TestParseTermsExtendedExact(t *testing.T) {
 		terms[5][0].typ != termFuzzy || !terms[5][0].inv || len(terms[5][0].text) != 3 ||
 		terms[6][0].typ != termPrefix || !terms[6][0].inv || len(terms[6][0].text) != 3 ||
 		terms[7][0].typ != termSuffix || !terms[7][0].inv || len(terms[7][0].text) != 3 {
-		t.Errorf("%s", terms)
+		t.Errorf("%v", terms)
 	}
 }
 
 func TestParseTermsEmpty(t *testing.T) {
 	terms := parseTerms(true, CaseSmart, false, "' ^ !' !^")
 	if len(terms) != 0 {
-		t.Errorf("%s", terms)
+		t.Errorf("%v", terms)
 	}
 }
 
@@ -73,7 +73,7 @@ func TestExact(t *testing.T) {
 	res, pos := algo.ExactMatchNaive(
 		pattern.caseSensitive, pattern.normalize, pattern.forward, &chars, pattern.termSets[0][0].text, true, nil)
 	if res.Start != 7 || res.End != 10 {
-		t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
+		t.Errorf("%v / %d / %d", pattern.termSets, res.Start, res.End)
 	}
 	if pos != nil {
 		t.Errorf("pos is expected to be nil")
@@ -90,7 +90,7 @@ func TestEqual(t *testing.T) {
 		res, pos := algo.EqualMatch(
 			pattern.caseSensitive, pattern.normalize, pattern.forward, &chars, pattern.termSets[0][0].text, true, nil)
 		if res.Start != sidxExpected || res.End != eidxExpected {
-			t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
+			t.Errorf("%v / %d / %d", pattern.termSets, res.Start, res.End)
 		}
 		if pos != nil {
 			t.Errorf("pos is expected to be nil")
@@ -98,6 +98,9 @@ func TestEqual(t *testing.T) {
 	}
 	match("ABC", -1, -1)
 	match("AbC", 0, 3)
+	match("AbC  ", 0, 3)
+	match(" AbC ", 1, 4)
+	match("  AbC", 2, 5)
 }
 
 func TestCaseSensitivity(t *testing.T) {
@@ -128,7 +131,7 @@ func TestCaseSensitivity(t *testing.T) {
 func TestOrigTextAndTransformed(t *testing.T) {
 	pattern := BuildPattern(true, algo.FuzzyMatchV2, true, CaseSmart, false, true, true, []Range{}, Delimiter{}, []rune("jg"))
 	tokens := Tokenize("junegunn", Delimiter{})
-	trans := Transform(tokens, []Range{Range{1, 1}})
+	trans := Transform(tokens, []Range{{1, 1}})
 
 	origBytes := []byte("junegunn.choi")
 	for _, extended := range []bool{false, true} {

src/protector/protector.go

@@ -0,0 +1,8 @@
+// +build !openbsd
+
+package protector
+
+// Protect calls OS specific protections like pledge on OpenBSD
+func Protect() {
+	return
+}

src/protector/protector_openbsd.go

@@ -0,0 +1,10 @@
+// +build openbsd
+
+package protector
+
+import "golang.org/x/sys/unix"
+
+// Protect calls OS specific protections like pledge on OpenBSD
+func Protect() {
+	unix.PledgePromises("stdio rpath tty proc exec")
+}

src/reader.go

@@ -2,12 +2,17 @@ package fzf
 
 import (
 	"bufio"
+	"context"
 	"io"
 	"os"
+	"os/exec"
+	"path/filepath"
+	"sync"
 	"sync/atomic"
 	"time"
 
 	"github.com/junegunn/fzf/src/util"
+	"github.com/saracen/walker"
 )
 
 // Reader reads from command or standard input
@@ -16,11 +21,17 @@ type Reader struct {
 	eventBox *util.EventBox
 	delimNil bool
 	event    int32
+	finChan  chan bool
+	mutex    sync.Mutex
+	exec     *exec.Cmd
+	command  *string
+	killed   bool
+	wait     bool
 }
 
 // NewReader returns new Reader object
-func NewReader(pusher func([]byte) bool, eventBox *util.EventBox, delimNil bool) *Reader {
-	return &Reader{pusher, eventBox, delimNil, int32(EvtReady)}
+func NewReader(pusher func([]byte) bool, eventBox *util.EventBox, delimNil bool, wait bool) *Reader {
+	return &Reader{pusher, eventBox, delimNil, int32(EvtReady), make(chan bool, 1), sync.Mutex{}, nil, nil, false, wait}
 }
 
 func (r *Reader) startEventPoller() {
@@ -29,9 +40,12 @@ func (r *Reader) startEventPoller() {
 		pollInterval := readerPollIntervalMin
 		for {
 			if atomic.CompareAndSwapInt32(ptr, int32(EvtReadNew), int32(EvtReady)) {
-				r.eventBox.Set(EvtReadNew, true)
+				r.eventBox.Set(EvtReadNew, (*string)(nil))
 				pollInterval = readerPollIntervalMin
 			} else if atomic.LoadInt32(ptr) == int32(EvtReadFin) {
+				if r.wait {
+					r.finChan <- true
+				}
 				return
 			} else {
 				pollInterval += readerPollIntervalStep
@@ -46,7 +60,37 @@ func (r *Reader) startEventPoller() {
 
 func (r *Reader) fin(success bool) {
 	atomic.StoreInt32(&r.event, int32(EvtReadFin))
-	r.eventBox.Set(EvtReadFin, success)
+	if r.wait {
+		<-r.finChan
+	}
+
+	r.mutex.Lock()
+	ret := r.command
+	if success || r.killed {
+		ret = nil
+	}
+	r.mutex.Unlock()
+
+	r.eventBox.Set(EvtReadFin, ret)
+}
+
+func (r *Reader) terminate() {
+	r.mutex.Lock()
+	defer func() { r.mutex.Unlock() }()
+
+	r.killed = true
+	if r.exec != nil && r.exec.Process != nil {
+		util.KillCommand(r.exec)
+	} else if defaultCommand != "" {
+		os.Stdin.Close()
+	}
+}
+
+func (r *Reader) restart(command string) {
+	r.event = int32(EvtReady)
+	r.startEventPoller()
+	success := r.readFromCommand(nil, command)
+	r.fin(success)
 }
 
 // ReadSource reads data from the default command or from standard input
@@ -54,12 +98,17 @@ func (r *Reader) ReadSource() {
 	r.startEventPoller()
 	var success bool
 	if util.IsTty() {
+		// The default command for *nix requires bash
+		shell := "bash"
 		cmd := os.Getenv("FZF_DEFAULT_COMMAND")
 		if len(cmd) == 0 {
-			// The default command for *nix requires bash
-			success = r.readFromCommand("bash", defaultCommand)
+			if defaultCommand != "" {
+				success = r.readFromCommand(&shell, defaultCommand)
+			} else {
+				success = r.readFiles()
+			}
 		} else {
-			success = r.readFromCommand("sh", cmd)
+			success = r.readFromCommand(nil, cmd)
 		}
 	} else {
 		success = r.readFromStdin()
@@ -102,16 +151,51 @@ func (r *Reader) readFromStdin() bool {
 	return true
 }
 
-func (r *Reader) readFromCommand(shell string, cmd string) bool {
-	listCommand := util.ExecCommandWith(shell, cmd)
-	out, err := listCommand.StdoutPipe()
+func (r *Reader) readFiles() bool {
+	r.killed = false
+	fn := func(path string, mode os.FileInfo) error {
+		path = filepath.Clean(path)
+		if path != "." {
+			isDir := mode.Mode().IsDir()
+			if isDir && filepath.Base(path)[0] == '.' {
+				return filepath.SkipDir
+			}
+			if !isDir && r.pusher([]byte(path)) {
+				atomic.StoreInt32(&r.event, int32(EvtReadNew))
+			}
+		}
+		r.mutex.Lock()
+		defer r.mutex.Unlock()
+		if r.killed {
+			return context.Canceled
+		}
+		return nil
+	}
+	cb := walker.WithErrorCallback(func(pathname string, err error) error {
+		return nil
+	})
+	return walker.Walk(".", fn, cb) == nil
+}
+
+func (r *Reader) readFromCommand(shell *string, command string) bool {
+	r.mutex.Lock()
+	r.killed = false
+	r.command = &command
+	if shell != nil {
+		r.exec = util.ExecCommandWith(*shell, command, true)
+	} else {
+		r.exec = util.ExecCommand(command, true)
+	}
+	out, err := r.exec.StdoutPipe()
 	if err != nil {
+		r.mutex.Unlock()
 		return false
 	}
-	err = listCommand.Start()
+	err = r.exec.Start()
+	r.mutex.Unlock()
 	if err != nil {
 		return false
 	}
 	r.feed(out)
-	return listCommand.Wait() == nil
+	return r.exec.Wait() == nil
 }

src/reader_test.go

@@ -10,10 +10,9 @@ import (
 func TestReadFromCommand(t *testing.T) {
 	strs := []string{}
 	eb := util.NewEventBox()
-	reader := Reader{
-		pusher:   func(s []byte) bool { strs = append(strs, string(s)); return true },
-		eventBox: eb,
-		event:    int32(EvtReady)}
+	reader := NewReader(
+		func(s []byte) bool { strs = append(strs, string(s)); return true },
+		eb, false, true)
 
 	reader.startEventPoller()
 
@@ -23,7 +22,7 @@ func TestReadFromCommand(t *testing.T) {
 	}
 
 	// Normal command
-	reader.fin(reader.readFromCommand("sh", `echo abc && echo def`))
+	reader.fin(reader.readFromCommand(nil, `echo abc && echo def`))
 	if len(strs) != 2 || strs[0] != "abc" || strs[1] != "def" {
 		t.Errorf("%s", strs)
 	}
@@ -48,7 +47,7 @@ func TestReadFromCommand(t *testing.T) {
 	reader.startEventPoller()
 
 	// Failing command
-	reader.fin(reader.readFromCommand("sh", `no-such-command`))
+	reader.fin(reader.readFromCommand(nil, `no-such-command`))
 	strs = []string{}
 	if len(strs) > 0 {
 		t.Errorf("%s", strs)

src/result.go

@@ -15,8 +15,6 @@ type Offset [2]int32
 type colorOffset struct {
 	offset [2]int32
 	color  tui.ColorPair
-	attr   tui.Attr
-	index  int32
 }
 
 type Result struct {
@@ -88,14 +86,14 @@ func minRank() Result {
 	return Result{item: &minItem, points: [4]uint16{math.MaxUint16, 0, 0, 0}}
 }
 
-func (result *Result) colorOffsets(matchOffsets []Offset, theme *tui.ColorTheme, color tui.ColorPair, attr tui.Attr, current bool) []colorOffset {
+func (result *Result) colorOffsets(matchOffsets []Offset, theme *tui.ColorTheme, colBase tui.ColorPair, colMatch tui.ColorPair, current bool) []colorOffset {
 	itemColors := result.item.Colors()
 
-	// No ANSI code, or --color=no
+	// No ANSI codes
 	if len(itemColors) == 0 {
 		var offsets []colorOffset
 		for _, off := range matchOffsets {
-			offsets = append(offsets, colorOffset{offset: [2]int32{off[0], off[1]}, color: color, attr: attr})
+			offsets = append(offsets, colorOffset{offset: [2]int32{off[0], off[1]}, color: colMatch})
 		}
 		return offsets
 	}
@@ -112,17 +110,19 @@ func (result *Result) colorOffsets(matchOffsets []Offset, theme *tui.ColorTheme,
 			maxCol = ansi.offset[1]
 		}
 	}
-	cols := make([]int, maxCol)
 
+	cols := make([]int, maxCol)
 	for colorIndex, ansi := range itemColors {
 		for i := ansi.offset[0]; i < ansi.offset[1]; i++ {
-			cols[i] = colorIndex + 1 // XXX
+			cols[i] = colorIndex + 1 // 1-based index of itemColors
 		}
 	}
 
 	for _, off := range matchOffsets {
 		for i := off[0]; i < off[1]; i++ {
-			cols[i] = -1
+			// Negative of 1-based index of itemColors
+			// - The extra -1 means highlighted
+			cols[i] = cols[i]*-1 - 1
 		}
 	}
 
@@ -134,36 +134,53 @@ func (result *Result) colorOffsets(matchOffsets []Offset, theme *tui.ColorTheme,
 	// --++++++++--  --++++++++++---
 	curr := 0
 	start := 0
+	ansiToColorPair := func(ansi ansiOffset, base tui.ColorPair) tui.ColorPair {
+		fg := ansi.color.fg
+		bg := ansi.color.bg
+		if fg == -1 {
+			if current {
+				fg = theme.Current.Color
+			} else {
+				fg = theme.Fg.Color
+			}
+		}
+		if bg == -1 {
+			if current {
+				bg = theme.DarkBg.Color
+			} else {
+				bg = theme.Bg.Color
+			}
+		}
+		return tui.NewColorPair(fg, bg, ansi.color.attr).MergeAttr(base)
+	}
 	var colors []colorOffset
 	add := func(idx int) {
 		if curr != 0 && idx > start {
-			if curr == -1 {
-				colors = append(colors, colorOffset{
-					offset: [2]int32{int32(start), int32(idx)}, color: color, attr: attr})
-			} else {
-				ansi := itemColors[curr-1]
-				fg := ansi.color.fg
-				bg := ansi.color.bg
-				if theme != nil {
-					if fg == -1 {
-						if current {
-							fg = theme.Current
-						} else {
-							fg = theme.Fg
-						}
-					}
-					if bg == -1 {
-						if current {
-							bg = theme.DarkBg
-						} else {
-							bg = theme.Bg
-						}
+			if curr < 0 {
+				color := colMatch
+				if curr < -1 && theme.Colored {
+					origColor := ansiToColorPair(itemColors[-curr-2], colMatch)
+					// hl or hl+ only sets the foreground color, so colMatch is the
+					// combination of either [hl and bg] or [hl+ and bg+].
+					//
+					// If the original text already has background color, and the
+					// foreground color of colMatch is -1, we shouldn't only apply the
+					// background color of colMatch.
+					// e.g. echo -e "\x1b[32;7mfoo\x1b[mbar" | fzf --ansi --color bg+:1,hl+:-1:underline
+					//      echo -e "\x1b[42mfoo\x1b[mbar" | fzf --ansi --color bg+:1,hl+:-1:underline
+					if color.Fg().IsDefault() && origColor.HasBg() {
+						color = origColor
+					} else {
+						color = origColor.MergeNonDefault(color)
 					}
 				}
+				colors = append(colors, colorOffset{
+					offset: [2]int32{int32(start), int32(idx)}, color: color})
+			} else {
+				ansi := itemColors[curr-1]
 				colors = append(colors, colorOffset{
 					offset: [2]int32{int32(start), int32(idx)},
-					color:  tui.NewColorPair(fg, bg),
-					attr:   ansi.color.attr.Merge(attr)})
+					color:  ansiToColorPair(ansi, colBase)})
 			}
 		}
 	}

src/result_test.go

@@ -18,8 +18,8 @@ func withIndex(i *Item, index int) *Item {
 
 func TestOffsetSort(t *testing.T) {
 	offsets := []Offset{
-		Offset{3, 5}, Offset{2, 7},
-		Offset{1, 3}, Offset{2, 9}}
+		{3, 5}, {2, 7},
+		{1, 3}, {2, 9}}
 	sort.Sort(ByOrder(offsets))
 
 	if offsets[0][0] != 1 || offsets[0][1] != 3 ||
@@ -84,13 +84,13 @@ func TestResultRank(t *testing.T) {
 
 	// Sort by relevance
 	item3 := buildResult(
-		withIndex(&Item{}, 2), []Offset{Offset{1, 3}, Offset{5, 7}}, 3)
+		withIndex(&Item{}, 2), []Offset{{1, 3}, {5, 7}}, 3)
 	item4 := buildResult(
-		withIndex(&Item{}, 2), []Offset{Offset{1, 2}, Offset{6, 7}}, 4)
+		withIndex(&Item{}, 2), []Offset{{1, 2}, {6, 7}}, 4)
 	item5 := buildResult(
-		withIndex(&Item{}, 2), []Offset{Offset{1, 3}, Offset{5, 7}}, 5)
+		withIndex(&Item{}, 2), []Offset{{1, 3}, {5, 7}}, 5)
 	item6 := buildResult(
-		withIndex(&Item{}, 2), []Offset{Offset{1, 2}, Offset{6, 7}}, 6)
+		withIndex(&Item{}, 2), []Offset{{1, 2}, {6, 7}}, 6)
 	items = []Result{item1, item2, item3, item4, item5, item6}
 	sort.Sort(ByRelevance(items))
 	if !(items[0] == item6 && items[1] == item5 &&
@@ -105,32 +105,55 @@ func TestColorOffset(t *testing.T) {
 	//   ++++++++        ++++++++++
 	// --++++++++--    --++++++++++---
 
-	offsets := []Offset{Offset{5, 15}, Offset{25, 35}}
+	offsets := []Offset{{5, 15}, {25, 35}}
 	item := Result{
 		item: &Item{
 			colors: &[]ansiOffset{
-				ansiOffset{[2]int32{0, 20}, ansiState{1, 5, 0}},
-				ansiOffset{[2]int32{22, 27}, ansiState{2, 6, tui.Bold}},
-				ansiOffset{[2]int32{30, 32}, ansiState{3, 7, 0}},
-				ansiOffset{[2]int32{33, 40}, ansiState{4, 8, tui.Bold}}}}}
-	// [{[0 5] 9 false} {[5 15] 99 false} {[15 20] 9 false} {[22 25] 10 true} {[25 35] 99 false} {[35 40] 11 true}]
+				{[2]int32{0, 20}, ansiState{1, 5, 0, -1}},
+				{[2]int32{22, 27}, ansiState{2, 6, tui.Bold, -1}},
+				{[2]int32{30, 32}, ansiState{3, 7, 0, -1}},
+				{[2]int32{33, 40}, ansiState{4, 8, tui.Bold, -1}}}}}
 
-	pair := tui.NewColorPair(99, 199)
-	colors := item.colorOffsets(offsets, tui.Dark256, pair, tui.AttrRegular, true)
-	assert := func(idx int, b int32, e int32, c tui.ColorPair, bold bool) {
-		var attr tui.Attr
-		if bold {
-			attr = tui.Bold
-		}
+	colBase := tui.NewColorPair(89, 189, tui.AttrUndefined)
+	colMatch := tui.NewColorPair(99, 199, tui.AttrUndefined)
+	colors := item.colorOffsets(offsets, tui.Dark256, colBase, colMatch, true)
+	assert := func(idx int, b int32, e int32, c tui.ColorPair) {
 		o := colors[idx]
-		if o.offset[0] != b || o.offset[1] != e || o.color != c || o.attr != attr {
-			t.Error(o)
+		if o.offset[0] != b || o.offset[1] != e || o.color != c {
+			t.Error(o, b, e, c)
 		}
 	}
-	assert(0, 0, 5, tui.NewColorPair(1, 5), false)
-	assert(1, 5, 15, pair, false)
-	assert(2, 15, 20, tui.NewColorPair(1, 5), false)
-	assert(3, 22, 25, tui.NewColorPair(2, 6), true)
-	assert(4, 25, 35, pair, false)
-	assert(5, 35, 40, tui.NewColorPair(4, 8), true)
+	// [{[0 5] {1 5 0}} {[5 15] {99 199 0}} {[15 20] {1 5 0}}
+	//  {[22 25] {2 6 1}} {[25 27] {99 199 1}} {[27 30] {99 199 0}}
+	//  {[30 32] {99 199 0}} {[32 33] {99 199 0}} {[33 35] {99 199 1}}
+	//  {[35 40] {4 8 1}}]
+	assert(0, 0, 5, tui.NewColorPair(1, 5, tui.AttrUndefined))
+	assert(1, 5, 15, colMatch)
+	assert(2, 15, 20, tui.NewColorPair(1, 5, tui.AttrUndefined))
+	assert(3, 22, 25, tui.NewColorPair(2, 6, tui.Bold))
+	assert(4, 25, 27, colMatch.WithAttr(tui.Bold))
+	assert(5, 27, 30, colMatch)
+	assert(6, 30, 32, colMatch)
+	assert(7, 32, 33, colMatch) // TODO: Should we merge consecutive blocks?
+	assert(8, 33, 35, colMatch.WithAttr(tui.Bold))
+	assert(9, 35, 40, tui.NewColorPair(4, 8, tui.Bold))
+
+	colRegular := tui.NewColorPair(-1, -1, tui.AttrUndefined)
+	colUnderline := tui.NewColorPair(-1, -1, tui.Underline)
+	colors = item.colorOffsets(offsets, tui.Dark256, colRegular, colUnderline, true)
+
+	// [{[0 5] {1 5 0}} {[5 15] {1 5 8}} {[15 20] {1 5 0}}
+	//  {[22 25] {2 6 1}} {[25 27] {2 6 9}} {[27 30] {-1 -1 8}}
+	//  {[30 32] {3 7 8}} {[32 33] {-1 -1 8}} {[33 35] {4 8 9}}
+	//  {[35 40] {4 8 1}}]
+	assert(0, 0, 5, tui.NewColorPair(1, 5, tui.AttrUndefined))
+	assert(1, 5, 15, tui.NewColorPair(1, 5, tui.Underline))
+	assert(2, 15, 20, tui.NewColorPair(1, 5, tui.AttrUndefined))
+	assert(3, 22, 25, tui.NewColorPair(2, 6, tui.Bold))
+	assert(4, 25, 27, tui.NewColorPair(2, 6, tui.Bold|tui.Underline))
+	assert(5, 27, 30, colUnderline)
+	assert(6, 30, 32, tui.NewColorPair(3, 7, tui.Underline))
+	assert(7, 32, 33, colUnderline)
+	assert(8, 33, 35, tui.NewColorPair(4, 8, tui.Bold|tui.Underline))
+	assert(9, 35, 40, tui.NewColorPair(4, 8, tui.Bold))
 }

src/terminal_test.go

@@ -21,74 +21,101 @@ func TestReplacePlaceholder(t *testing.T) {
 		newItem("foo'bar \x1b[31mbaz\x1b[m"),
 		newItem("FOO'BAR \x1b[31mBAZ\x1b[m")}
 
+	delim := "'"
+	var regex *regexp.Regexp
+
 	var result string
 	check := func(expected string) {
 		if result != expected {
 			t.Errorf("expected: %s, actual: %s", expected, result)
 		}
 	}
-
+	printsep := "\n"
 	// {}, preserve ansi
-	result = replacePlaceholder("echo {}", false, Delimiter{}, false, "query", items1)
+	result = replacePlaceholder("echo {}", false, Delimiter{}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar \x1b[31mbaz\x1b[m'")
 
 	// {}, strip ansi
-	result = replacePlaceholder("echo {}", true, Delimiter{}, false, "query", items1)
+	result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar baz'")
 
 	// {}, with multiple items
-	result = replacePlaceholder("echo {}", true, Delimiter{}, false, "query", items2)
+	result = replacePlaceholder("echo {}", true, Delimiter{}, printsep, false, "query", items2)
 	check("echo 'foo'\\''bar baz'")
 
 	// {..}, strip leading whitespaces, preserve ansi
-	result = replacePlaceholder("echo {..}", false, Delimiter{}, false, "query", items1)
+	result = replacePlaceholder("echo {..}", false, Delimiter{}, printsep, false, "query", items1)
 	check("echo 'foo'\\''bar \x1b[31mbaz\x1b[m'")
 
 	// {..}, strip leading whitespaces, strip ansi
-	result = replacePlaceholder("echo {..}", true, Delimiter{}, false, "query", items1)
+	result = replacePlaceholder("echo {..}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo 'foo'\\''bar baz'")
 
 	// {q}
-	result = replacePlaceholder("echo {} {q}", true, Delimiter{}, false, "query", items1)
+	result = replacePlaceholder("echo {} {q}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar baz' 'query'")
 
 	// {q}, multiple items
-	result = replacePlaceholder("echo {+}{q}{+}", true, Delimiter{}, false, "query 'string'", items2)
+	result = replacePlaceholder("echo {+}{q}{+}", true, Delimiter{}, printsep, false, "query 'string'", items2)
 	check("echo 'foo'\\''bar baz' 'FOO'\\''BAR BAZ''query '\\''string'\\''''foo'\\''bar baz' 'FOO'\\''BAR BAZ'")
 
-	result = replacePlaceholder("echo {}{q}{}", true, Delimiter{}, false, "query 'string'", items2)
+	result = replacePlaceholder("echo {}{q}{}", true, Delimiter{}, printsep, false, "query 'string'", items2)
 	check("echo 'foo'\\''bar baz''query '\\''string'\\''''foo'\\''bar baz'")
 
-	result = replacePlaceholder("echo {1}/{2}/{2,1}/{-1}/{-2}/{}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, false, "query", items1)
+	result = replacePlaceholder("echo {1}/{2}/{2,1}/{-1}/{-2}/{}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items1)
 	check("echo 'foo'\\''bar'/'baz'/'bazfoo'\\''bar'/'baz'/'foo'\\''bar'/'  foo'\\''bar baz'/'foo'\\''bar baz'/{n.t}/{}/{1}/{q}/''")
 
-	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, false, "query", items2)
+	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, false, "query", items2)
 	check("echo 'foo'\\''bar'/'baz'/'baz'/'foo'\\''bar'/'foo'\\''bar baz'/{n.t}/{}/{1}/{q}/''")
 
-	result = replacePlaceholder("echo {+1}/{+2}/{+-1}/{+-2}/{+..}/{n.t}/\\{}/\\{1}/\\{q}/{+3}", true, Delimiter{}, false, "query", items2)
+	result = replacePlaceholder("echo {+1}/{+2}/{+-1}/{+-2}/{+..}/{n.t}/\\{}/\\{1}/\\{q}/{+3}", true, Delimiter{}, printsep, false, "query", items2)
 	check("echo 'foo'\\''bar' 'FOO'\\''BAR'/'baz' 'BAZ'/'baz' 'BAZ'/'foo'\\''bar' 'FOO'\\''BAR'/'foo'\\''bar baz' 'FOO'\\''BAR BAZ'/{n.t}/{}/{1}/{q}/'' ''")
 
 	// forcePlus
-	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, true, "query", items2)
+	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, printsep, true, "query", items2)
 	check("echo 'foo'\\''bar' 'FOO'\\''BAR'/'baz' 'BAZ'/'baz' 'BAZ'/'foo'\\''bar' 'FOO'\\''BAR'/'foo'\\''bar baz' 'FOO'\\''BAR BAZ'/{n.t}/{}/{1}/{q}/'' ''")
 
+	// Whitespace preserving flag with "'" delimiter
+	result = replacePlaceholder("echo {s1}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo '  foo'")
+
+	result = replacePlaceholder("echo {s2}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo 'bar baz'")
+
+	result = replacePlaceholder("echo {s}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo '  foo'\\''bar baz'")
+
+	result = replacePlaceholder("echo {s..}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
+	check("echo '  foo'\\''bar baz'")
+
+	// Whitespace preserving flag with regex delimiter
+	regex = regexp.MustCompile(`\w+`)
+
+	result = replacePlaceholder("echo {s1}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
+	check("echo '  '")
+
+	result = replacePlaceholder("echo {s2}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
+	check("echo ''\\'''")
+
+	result = replacePlaceholder("echo {s3}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
+	check("echo ' '")
+
 	// No match
-	result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, false, "query", []*Item{nil, nil})
+	result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, nil})
 	check("echo /")
 
 	// No match, but with selections
-	result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, false, "query", []*Item{nil, item1})
+	result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, printsep, false, "query", []*Item{nil, item1})
 	check("echo /'  foo'\\''bar baz'")
 
 	// String delimiter
-	delim := "'"
-	result = replacePlaceholder("echo {}/{1}/{2}", true, Delimiter{str: &delim}, false, "query", items1)
+	result = replacePlaceholder("echo {}/{1}/{2}", true, Delimiter{str: &delim}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar baz'/'foo'/'bar baz'")
 
 	// Regex delimiter
-	regex := regexp.MustCompile("[oa]+")
+	regex = regexp.MustCompile("[oa]+")
 	// foo'bar baz
-	result = replacePlaceholder("echo {}/{1}/{3}/{2..3}", true, Delimiter{regex: regex}, false, "query", items1)
+	result = replacePlaceholder("echo {}/{1}/{3}/{2..3}", true, Delimiter{regex: regex}, printsep, false, "query", items1)
 	check("echo '  foo'\\''bar baz'/'f'/'r b'/''\\''bar b'")
 }
 

src/tokenizer.go

@@ -2,6 +2,7 @@ package fzf
 
 import (
 	"bytes"
+	"fmt"
 	"regexp"
 	"strconv"
 	"strings"
@@ -23,12 +24,22 @@ type Token struct {
 	prefixLength int32
 }
 
+// String returns the string representation of a Token.
+func (t Token) String() string {
+	return fmt.Sprintf("Token{text: %s, prefixLength: %d}", t.text, t.prefixLength)
+}
+
 // Delimiter for tokenizing the input
 type Delimiter struct {
 	regex *regexp.Regexp
 	str   *string
 }
 
+// String returns the string representation of a Delimiter.
+func (d Delimiter) String() string {
+	return fmt.Sprintf("Delimiter{regex: %v, str: &%q}", d.regex, *d.str)
+}
+
 func newRange(begin int, end int) Range {
 	if begin == 1 {
 		begin = rangeEllipsis
@@ -227,7 +238,7 @@ func Transform(tokens []Token, withNth []Range) []Token {
 			for _, part := range parts {
 				output.WriteString(part.ToString())
 			}
-			merged = util.ToChars([]byte(output.String()))
+			merged = util.ToChars(output.Bytes())
 		}
 
 		var prefixLength int32

src/tokenizer_test.go

@@ -9,35 +9,35 @@ func TestParseRange(t *testing.T) {
 		i := ".."
 		r, _ := ParseRange(&i)
 		if r.begin != rangeEllipsis || r.end != rangeEllipsis {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "3.."
 		r, _ := ParseRange(&i)
 		if r.begin != 3 || r.end != rangeEllipsis {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "3..5"
 		r, _ := ParseRange(&i)
 		if r.begin != 3 || r.end != 5 {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "-3..-5"
 		r, _ := ParseRange(&i)
 		if r.begin != -3 || r.end != -5 {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 	{
 		i := "3"
 		r, _ := ParseRange(&i)
 		if r.begin != 3 || r.end != 3 {
-			t.Errorf("%s", r)
+			t.Errorf("%v", r)
 		}
 	}
 }
@@ -73,7 +73,7 @@ func TestTransform(t *testing.T) {
 		{
 			ranges := splitNth("1,2,3")
 			tx := Transform(tokens, ranges)
-			if string(joinTokens(tx)) != "abc:  def:  ghi:  " {
+			if joinTokens(tx) != "abc:  def:  ghi:  " {
 				t.Errorf("%s", tx)
 			}
 		}
@@ -95,7 +95,7 @@ func TestTransform(t *testing.T) {
 		{
 			ranges := splitNth("1..2,3,2..,1")
 			tx := Transform(tokens, ranges)
-			if string(joinTokens(tx)) != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
+			if joinTokens(tx) != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
 				len(tx) != 4 ||
 				tx[0].text.ToString() != "  abc:  def:" || tx[0].prefixLength != 0 ||
 				tx[1].text.ToString() != "  ghi:" || tx[1].prefixLength != 12 ||

src/tui/dummy.go

@@ -4,7 +4,7 @@
 
 package tui
 
-type Attr int
+type Attr int32
 
 func HasFullscreenRenderer() bool {
 	return false
@@ -15,30 +15,32 @@ func (a Attr) Merge(b Attr) Attr {
 }
 
 const (
-	AttrRegular Attr = Attr(0)
-	Bold             = Attr(1)
-	Dim              = Attr(1 << 1)
-	Italic           = Attr(1 << 2)
-	Underline        = Attr(1 << 3)
-	Blink            = Attr(1 << 4)
-	Blink2           = Attr(1 << 5)
-	Reverse          = Attr(1 << 6)
+	AttrUndefined = Attr(0)
+	AttrRegular   = Attr(1 << 7)
+	AttrClear     = Attr(1 << 8)
+
+	Bold      = Attr(1)
+	Dim       = Attr(1 << 1)
+	Italic    = Attr(1 << 2)
+	Underline = Attr(1 << 3)
+	Blink     = Attr(1 << 4)
+	Blink2    = Attr(1 << 5)
+	Reverse   = Attr(1 << 6)
 )
 
-func (r *FullscreenRenderer) Init()       {}
-func (r *FullscreenRenderer) Pause(bool)  {}
-func (r *FullscreenRenderer) Resume(bool) {}
-func (r *FullscreenRenderer) Clear()      {}
-func (r *FullscreenRenderer) Refresh()    {}
-func (r *FullscreenRenderer) Close()      {}
+func (r *FullscreenRenderer) Init()             {}
+func (r *FullscreenRenderer) Pause(bool)        {}
+func (r *FullscreenRenderer) Resume(bool, bool) {}
+func (r *FullscreenRenderer) Clear()            {}
+func (r *FullscreenRenderer) Refresh()          {}
+func (r *FullscreenRenderer) Close()            {}
 
-func (r *FullscreenRenderer) DoesAutoWrap() bool { return false }
-func (r *FullscreenRenderer) GetChar() Event     { return Event{} }
-func (r *FullscreenRenderer) MaxX() int          { return 0 }
-func (r *FullscreenRenderer) MaxY() int          { return 0 }
+func (r *FullscreenRenderer) GetChar() Event { return Event{} }
+func (r *FullscreenRenderer) MaxX() int      { return 0 }
+func (r *FullscreenRenderer) MaxY() int      { return 0 }
 
 func (r *FullscreenRenderer) RefreshWindows(windows []Window) {}
 
-func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window {
 	return nil
 }

src/tui/light.go

@@ -1,19 +1,18 @@
 package tui
 
 import (
+	"bytes"
 	"fmt"
 	"os"
-	"os/exec"
 	"regexp"
 	"strconv"
 	"strings"
-	"syscall"
 	"time"
 	"unicode/utf8"
 
 	"github.com/junegunn/fzf/src/util"
 
-	"golang.org/x/crypto/ssh/terminal"
+	"golang.org/x/term"
 )
 
 const (
@@ -23,20 +22,13 @@ const (
 	defaultEscDelay = 100
 	escPollInterval = 5
 	offsetPollTries = 10
+	maxInputBuffer  = 10 * 1024
 )
 
 const consoleDevice string = "/dev/tty"
 
-var offsetRegexp *regexp.Regexp = regexp.MustCompile("\x1b\\[([0-9]+);([0-9]+)R")
-
-func openTtyIn() *os.File {
-	in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0)
-	if err != nil {
-		fmt.Fprintln(os.Stderr, "Failed to open "+consoleDevice)
-		os.Exit(2)
-	}
-	return in
-}
+var offsetRegexp *regexp.Regexp = regexp.MustCompile("(.*)\x1b\\[([0-9]+);([0-9]+)R")
+var offsetRegexpBegin *regexp.Regexp = regexp.MustCompile("^\x1b\\[[0-9]+;[0-9]+R")
 
 func (r *LightRenderer) stderr(str string) {
 	r.stderrInternal(str, true)
@@ -48,11 +40,13 @@ func (r *LightRenderer) stderrInternal(str string, allowNLCR bool) {
 	runes := []rune{}
 	for len(bytes) > 0 {
 		r, sz := utf8.DecodeRune(bytes)
-		if r == utf8.RuneError || r < 32 &&
-			r != '\x1b' && (!allowNLCR || r != '\n' && r != '\r') {
-			runes = append(runes, '?')
-		} else {
-			runes = append(runes, r)
+		nlcr := r == '\n' || r == '\r'
+		if r >= 32 || r == '\x1b' || nlcr {
+			if r == utf8.RuneError || nlcr && !allowNLCR {
+				runes = append(runes, ' ')
+			} else {
+				runes = append(runes, r)
+			}
 		}
 		bytes = bytes[sz:]
 	}
@@ -80,7 +74,7 @@ type LightRenderer struct {
 	clickY        []int
 	ttyin         *os.File
 	buffer        []byte
-	origState     *terminal.State
+	origState     *term.State
 	width         int
 	height        int
 	yoffset       int
@@ -92,11 +86,19 @@ type LightRenderer struct {
 	y             int
 	x             int
 	maxHeightFunc func(int) int
+
+	// Windows only
+	ttyinChannel    chan byte
+	inHandle        uintptr
+	outHandle       uintptr
+	origStateInput  uint32
+	origStateOutput uint32
 }
 
 type LightWindow struct {
 	renderer *LightRenderer
 	colored  bool
+	preview  bool
 	border   BorderStyle
 	top      int
 	left     int
@@ -124,38 +126,9 @@ func NewLightRenderer(theme *ColorTheme, forceBlack bool, mouse bool, tabstop in
 	return &r
 }
 
-func (r *LightRenderer) fd() int {
-	return int(r.ttyin.Fd())
-}
-
-func (r *LightRenderer) defaultTheme() *ColorTheme {
-	if strings.Contains(os.Getenv("TERM"), "256") {
-		return Dark256
-	}
-	colors, err := exec.Command("tput", "colors").Output()
-	if err == nil && atoi(strings.TrimSpace(string(colors)), 16) > 16 {
-		return Dark256
-	}
-	return Default16
-}
-
-func (r *LightRenderer) findOffset() (row int, col int) {
-	r.csi("6n")
-	r.flush()
-	bytes := []byte{}
-	for tries := 0; tries < offsetPollTries; tries++ {
-		bytes = r.getBytesInternal(bytes, tries > 0)
-		offsets := offsetRegexp.FindSubmatch(bytes)
-		if len(offsets) > 2 {
-			return atoi(string(offsets[1]), 0) - 1, atoi(string(offsets[2]), 0) - 1
-		}
-	}
-	return -1, -1
-}
-
-func repeat(s string, times int) string {
+func repeat(r rune, times int) string {
 	if times > 0 {
-		return strings.Repeat(s, times)
+		return strings.Repeat(string(r), times)
 	}
 	return ""
 }
@@ -171,13 +144,9 @@ func atoi(s string, defaultValue int) int {
 func (r *LightRenderer) Init() {
 	r.escDelay = atoi(os.Getenv("ESCDELAY"), defaultEscDelay)
 
-	fd := r.fd()
-	origState, err := terminal.GetState(fd)
-	if err != nil {
+	if err := r.initPlatform(); err != nil {
 		errorExit(err.Error())
 	}
-	r.origState = origState
-	terminal.MakeRaw(fd)
 	r.updateTerminalSize()
 	initTheme(r.theme, r.defaultTheme(), r.forceBlack)
 
@@ -250,28 +219,6 @@ func getEnv(name string, defaultValue int) int {
 	return atoi(env, defaultValue)
 }
 
-func (r *LightRenderer) updateTerminalSize() {
-	width, height, err := terminal.GetSize(r.fd())
-	if err == nil {
-		r.width = width
-		r.height = r.maxHeightFunc(height)
-	} else {
-		r.width = getEnv("COLUMNS", defaultWidth)
-		r.height = r.maxHeightFunc(getEnv("LINES", defaultHeight))
-	}
-}
-
-func (r *LightRenderer) getch(nonblock bool) (int, bool) {
-	b := make([]byte, 1)
-	fd := r.fd()
-	util.SetNonblock(r.ttyin, nonblock)
-	_, err := util.Read(fd, b)
-	if err != nil {
-		return 0, false
-	}
-	return int(b[0]), true
-}
-
 func (r *LightRenderer) getBytes() []byte {
 	return r.getBytesInternal(r.buffer, false)
 }
@@ -284,11 +231,12 @@ func (r *LightRenderer) getBytesInternal(buffer []byte, nonblock bool) []byte {
 	}
 
 	retries := 0
-	if c == ESC || nonblock {
+	if c == ESC.Int() || nonblock {
 		retries = r.escDelay / escPollInterval
 	}
 	buffer = append(buffer, byte(c))
 
+	pc := c
 	for {
 		c, ok = r.getch(true)
 		if !ok {
@@ -298,9 +246,20 @@ func (r *LightRenderer) getBytesInternal(buffer []byte, nonblock bool) []byte {
 				continue
 			}
 			break
+		} else if c == ESC.Int() && pc != c {
+			retries = r.escDelay / escPollInterval
+		} else {
+			retries = 0
 		}
-		retries = 0
 		buffer = append(buffer, byte(c))
+		pc = c
+
+		// This should never happen under normal conditions,
+		// so terminate fzf immediately.
+		if len(buffer) > maxInputBuffer {
+			r.Close()
+			panic(fmt.Sprintf("Input buffer overflow (%d): %v", len(buffer), buffer))
+		}
 	}
 
 	return buffer
@@ -320,17 +279,25 @@ func (r *LightRenderer) GetChar() Event {
 	}()
 
 	switch r.buffer[0] {
-	case CtrlC:
+	case CtrlC.Byte():
 		return Event{CtrlC, 0, nil}
-	case CtrlG:
+	case CtrlG.Byte():
 		return Event{CtrlG, 0, nil}
-	case CtrlQ:
+	case CtrlQ.Byte():
 		return Event{CtrlQ, 0, nil}
 	case 127:
 		return Event{BSpace, 0, nil}
 	case 0:
 		return Event{CtrlSpace, 0, nil}
-	case ESC:
+	case 28:
+		return Event{CtrlBackSlash, 0, nil}
+	case 29:
+		return Event{CtrlRightBracket, 0, nil}
+	case 30:
+		return Event{CtrlCaret, 0, nil}
+	case 31:
+		return Event{CtrlSlash, 0, nil}
+	case ESC.Byte():
 		ev := r.escSequence(&sz)
 		// Second chance
 		if ev.Type == Invalid {
@@ -341,8 +308,8 @@ func (r *LightRenderer) GetChar() Event {
 	}
 
 	// CTRL-A ~ CTRL-Z
-	if r.buffer[0] <= CtrlZ {
-		return Event{int(r.buffer[0]), 0, nil}
+	if r.buffer[0] <= CtrlZ.Byte() {
+		return Event{EventType(r.buffer[0]), 0, nil}
 	}
 	char, rsz := utf8.DecodeRune(r.buffer)
 	if char == utf8.RuneError {
@@ -356,135 +323,197 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 	if len(r.buffer) < 2 {
 		return Event{ESC, 0, nil}
 	}
+
+	loc := offsetRegexpBegin.FindIndex(r.buffer)
+	if loc != nil && loc[0] == 0 {
+		*sz = loc[1]
+		return Event{Invalid, 0, nil}
+	}
+
 	*sz = 2
 	if r.buffer[1] >= 1 && r.buffer[1] <= 'z'-'a'+1 {
-		return Event{int(CtrlAltA + r.buffer[1] - 1), 0, nil}
+		return CtrlAltKey(rune(r.buffer[1] + 'a' - 1))
+	}
+	alt := false
+	if len(r.buffer) > 2 && r.buffer[1] == ESC.Byte() {
+		r.buffer = r.buffer[1:]
+		alt = true
 	}
 	switch r.buffer[1] {
-	case 32:
-		return Event{AltSpace, 0, nil}
-	case 47:
-		return Event{AltSlash, 0, nil}
-	case 98:
-		return Event{AltB, 0, nil}
-	case 100:
-		return Event{AltD, 0, nil}
-	case 102:
-		return Event{AltF, 0, nil}
+	case ESC.Byte():
+		return Event{ESC, 0, nil}
 	case 127:
 		return Event{AltBS, 0, nil}
-	case 91, 79:
+	case '[', 'O':
 		if len(r.buffer) < 3 {
 			return Event{Invalid, 0, nil}
 		}
 		*sz = 3
 		switch r.buffer[2] {
-		case 68:
+		case 'D':
+			if alt {
+				return Event{AltLeft, 0, nil}
+			}
 			return Event{Left, 0, nil}
-		case 67:
+		case 'C':
+			if alt {
+				// Ugh..
+				return Event{AltRight, 0, nil}
+			}
 			return Event{Right, 0, nil}
-		case 66:
+		case 'B':
+			if alt {
+				return Event{AltDown, 0, nil}
+			}
 			return Event{Down, 0, nil}
-		case 65:
+		case 'A':
+			if alt {
+				return Event{AltUp, 0, nil}
+			}
 			return Event{Up, 0, nil}
-		case 90:
+		case 'Z':
 			return Event{BTab, 0, nil}
-		case 72:
+		case 'H':
 			return Event{Home, 0, nil}
-		case 70:
+		case 'F':
 			return Event{End, 0, nil}
-		case 77:
+		case 'M':
 			return r.mouseSequence(sz)
-		case 80:
+		case 'P':
 			return Event{F1, 0, nil}
-		case 81:
+		case 'Q':
 			return Event{F2, 0, nil}
-		case 82:
+		case 'R':
 			return Event{F3, 0, nil}
-		case 83:
+		case 'S':
 			return Event{F4, 0, nil}
-		case 49, 50, 51, 52, 53, 54:
+		case '1', '2', '3', '4', '5', '6':
 			if len(r.buffer) < 4 {
 				return Event{Invalid, 0, nil}
 			}
 			*sz = 4
 			switch r.buffer[2] {
-			case 50:
-				if len(r.buffer) == 5 && r.buffer[4] == 126 {
+			case '2':
+				if r.buffer[3] == '~' {
+					return Event{Insert, 0, nil}
+				}
+				if len(r.buffer) > 4 && r.buffer[4] == '~' {
 					*sz = 5
 					switch r.buffer[3] {
-					case 48:
+					case '0':
 						return Event{F9, 0, nil}
-					case 49:
+					case '1':
 						return Event{F10, 0, nil}
-					case 51:
+					case '3':
 						return Event{F11, 0, nil}
-					case 52:
+					case '4':
 						return Event{F12, 0, nil}
 					}
 				}
 				// Bracketed paste mode: \e[200~ ... \e[201~
-				if r.buffer[3] == '0' && (r.buffer[4] == '0' || r.buffer[4] == '1') && r.buffer[5] == '~' {
+				if len(r.buffer) > 5 && r.buffer[3] == '0' && (r.buffer[4] == '0' || r.buffer[4] == '1') && r.buffer[5] == '~' {
 					// Immediately discard the sequence from the buffer and reread input
 					r.buffer = r.buffer[6:]
 					*sz = 0
 					return r.GetChar()
 				}
 				return Event{Invalid, 0, nil} // INS
-			case 51:
+			case '3':
 				return Event{Del, 0, nil}
-			case 52:
+			case '4':
 				return Event{End, 0, nil}
-			case 53:
+			case '5':
 				return Event{PgUp, 0, nil}
-			case 54:
+			case '6':
 				return Event{PgDn, 0, nil}
-			case 49:
+			case '1':
 				switch r.buffer[3] {
-				case 126:
+				case '~':
 					return Event{Home, 0, nil}
-				case 53, 55, 56, 57:
-					if len(r.buffer) == 5 && r.buffer[4] == 126 {
+				case '1', '2', '3', '4', '5', '7', '8', '9':
+					if len(r.buffer) == 5 && r.buffer[4] == '~' {
 						*sz = 5
 						switch r.buffer[3] {
-						case 53:
+						case '1':
+							return Event{F1, 0, nil}
+						case '2':
+							return Event{F2, 0, nil}
+						case '3':
+							return Event{F3, 0, nil}
+						case '4':
+							return Event{F4, 0, nil}
+						case '5':
 							return Event{F5, 0, nil}
-						case 55:
+						case '7':
 							return Event{F6, 0, nil}
-						case 56:
+						case '8':
 							return Event{F7, 0, nil}
-						case 57:
+						case '9':
 							return Event{F8, 0, nil}
 						}
 					}
 					return Event{Invalid, 0, nil}
-				case 59:
-					if len(r.buffer) != 6 {
+				case ';':
+					if len(r.buffer) < 6 {
 						return Event{Invalid, 0, nil}
 					}
 					*sz = 6
 					switch r.buffer[4] {
-					case 50:
-						switch r.buffer[5] {
-						case 68:
-							return Event{Home, 0, nil}
-						case 67:
-							return Event{End, 0, nil}
+					case '1', '2', '3', '5':
+						alt := r.buffer[4] == '3'
+						altShift := r.buffer[4] == '1' && r.buffer[5] == '0'
+						char := r.buffer[5]
+						if altShift {
+							if len(r.buffer) < 7 {
+								return Event{Invalid, 0, nil}
+							}
+							*sz = 7
+							char = r.buffer[6]
 						}
-					case 53:
-						switch r.buffer[5] {
-						case 68:
-							return Event{SLeft, 0, nil}
-						case 67:
+						switch char {
+						case 'A':
+							if alt {
+								return Event{AltUp, 0, nil}
+							}
+							if altShift {
+								return Event{AltSUp, 0, nil}
+							}
+							return Event{SUp, 0, nil}
+						case 'B':
+							if alt {
+								return Event{AltDown, 0, nil}
+							}
+							if altShift {
+								return Event{AltSDown, 0, nil}
+							}
+							return Event{SDown, 0, nil}
+						case 'C':
+							if alt {
+								return Event{AltRight, 0, nil}
+							}
+							if altShift {
+								return Event{AltSRight, 0, nil}
+							}
 							return Event{SRight, 0, nil}
+						case 'D':
+							if alt {
+								return Event{AltLeft, 0, nil}
+							}
+							if altShift {
+								return Event{AltSLeft, 0, nil}
+							}
+							return Event{SLeft, 0, nil}
 						}
 					} // r.buffer[4]
 				} // r.buffer[3]
 			} // r.buffer[2]
 		} // r.buffer[2]
 	} // r.buffer[1]
-	if r.buffer[1] >= 'a' && r.buffer[1] <= 'z' {
-		return Event{AltA + int(r.buffer[1]) - 'a', 0, nil}
+	rest := bytes.NewBuffer(r.buffer[1:])
+	c, size, err := rest.ReadRune()
+	if err == nil {
+		*sz = 1 + size
+		return AltKey(c)
 	}
 	return Event{Invalid, 0, nil}
 }
@@ -495,16 +524,19 @@ func (r *LightRenderer) mouseSequence(sz *int) Event {
 	}
 	*sz = 6
 	switch r.buffer[3] {
-	case 32, 36, 40, 48, // mouse-down / shift / cmd / ctrl
+	case 32, 34, 36, 40, 48, // mouse-down / shift / cmd / ctrl
 		35, 39, 43, 51: // mouse-up / shift / cmd / ctrl
 		mod := r.buffer[3] >= 36
+		left := r.buffer[3] == 32
 		down := r.buffer[3]%2 == 0
 		x := int(r.buffer[4] - 33)
 		y := int(r.buffer[5]-33) - r.yoffset
 		double := false
 		if down {
 			now := time.Now()
-			if now.Sub(r.prevDownTime) < doubleClickDuration {
+			if !left { // Right double click is not allowed
+				r.clickY = []int{}
+			} else if now.Sub(r.prevDownTime) < doubleClickDuration {
 				r.clickY = append(r.clickY, y)
 			} else {
 				r.clickY = []int{y}
@@ -512,19 +544,19 @@ func (r *LightRenderer) mouseSequence(sz *int) Event {
 			r.prevDownTime = now
 		} else {
 			if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
-				time.Now().Sub(r.prevDownTime) < doubleClickDuration {
+				time.Since(r.prevDownTime) < doubleClickDuration {
 				double = true
 			}
 		}
 
-		return Event{Mouse, 0, &MouseEvent{y, x, 0, down, double, mod}}
+		return Event{Mouse, 0, &MouseEvent{y, x, 0, left, down, double, mod}}
 	case 96, 100, 104, 112, // scroll-up / shift / cmd / ctrl
 		97, 101, 105, 113: // scroll-down / shift / cmd / ctrl
 		mod := r.buffer[3] >= 100
 		s := 1 - int(r.buffer[3]%2)*2
 		x := int(r.buffer[4] - 33)
 		y := int(r.buffer[5]-33) - r.yoffset
-		return Event{Mouse, 0, &MouseEvent{y, x, s, false, false, mod}}
+		return Event{Mouse, 0, &MouseEvent{y, x, s, false, false, false, mod}}
 	}
 	return Event{Invalid, 0, nil}
 }
@@ -538,7 +570,7 @@ func (r *LightRenderer) rmcup() {
 }
 
 func (r *LightRenderer) Pause(clear bool) {
-	terminal.Restore(r.fd(), r.origState)
+	r.restoreTerminal()
 	if clear {
 		if r.fullscreen {
 			r.rmcup()
@@ -550,8 +582,8 @@ func (r *LightRenderer) Pause(clear bool) {
 	}
 }
 
-func (r *LightRenderer) Resume(clear bool) {
-	terminal.MakeRaw(r.fd())
+func (r *LightRenderer) Resume(clear bool, sigcont bool) {
+	r.setupTerminal()
 	if clear {
 		if r.fullscreen {
 			r.smcup()
@@ -559,10 +591,10 @@ func (r *LightRenderer) Resume(clear bool) {
 			r.rmcup()
 		}
 		r.flush()
-	} else if !r.fullscreen && r.mouse {
-		// NOTE: Resume(false) is only called on SIGCONT after SIGSTOP.
-		// And It's highly likely that the offset we obtained at the beginning will
-		// no longer be correct, so we simply disable mouse input.
+	} else if sigcont && !r.fullscreen && r.mouse {
+		// NOTE: SIGCONT (Coming back from CTRL-Z):
+		// It's highly likely that the offset we obtained at the beginning is
+		// no longer correct, so we simply disable mouse input.
 		r.csi("?1000l")
 		r.mouse = false
 	}
@@ -605,7 +637,8 @@ func (r *LightRenderer) Close() {
 		r.csi("?1000l")
 	}
 	r.flush()
-	terminal.Restore(r.fd(), r.origState)
+	r.closePlatform()
+	r.restoreTerminal()
 }
 
 func (r *LightRenderer) MaxX() int {
@@ -616,14 +649,11 @@ func (r *LightRenderer) MaxY() int {
 	return r.height
 }
 
-func (r *LightRenderer) DoesAutoWrap() bool {
-	return false
-}
-
-func (r *LightRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
+func (r *LightRenderer) NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window {
 	w := &LightWindow{
 		renderer: r,
-		colored:  r.theme != nil,
+		colored:  r.theme.Colored,
+		preview:  preview,
 		border:   borderStyle,
 		top:      top,
 		left:     left,
@@ -632,51 +662,93 @@ func (r *LightRenderer) NewWindow(top int, left int, width int, height int, bord
 		tabstop:  r.tabstop,
 		fg:       colDefault,
 		bg:       colDefault}
-	if r.theme != nil {
-		w.fg = r.theme.Fg
-		w.bg = r.theme.Bg
+	if preview {
+		w.fg = r.theme.PreviewFg.Color
+		w.bg = r.theme.PreviewBg.Color
+	} else {
+		w.fg = r.theme.Fg.Color
+		w.bg = r.theme.Bg.Color
 	}
 	w.drawBorder()
 	return w
 }
 
 func (w *LightWindow) drawBorder() {
-	switch w.border {
-	case BorderAround:
+	switch w.border.shape {
+	case BorderRounded, BorderSharp:
 		w.drawBorderAround()
 	case BorderHorizontal:
-		w.drawBorderHorizontal()
+		w.drawBorderHorizontal(true, true)
+	case BorderVertical:
+		w.drawBorderVertical(true, true)
+	case BorderTop:
+		w.drawBorderHorizontal(true, false)
+	case BorderBottom:
+		w.drawBorderHorizontal(false, true)
+	case BorderLeft:
+		w.drawBorderVertical(true, false)
+	case BorderRight:
+		w.drawBorderVertical(false, true)
 	}
 }
 
-func (w *LightWindow) drawBorderHorizontal() {
-	w.Move(0, 0)
-	w.CPrint(ColBorder, AttrRegular, repeat("─", w.width))
-	w.Move(w.height-1, 0)
-	w.CPrint(ColBorder, AttrRegular, repeat("─", w.width))
+func (w *LightWindow) drawBorderHorizontal(top, bottom bool) {
+	color := ColBorder
+	if w.preview {
+		color = ColPreviewBorder
+	}
+	if top {
+		w.Move(0, 0)
+		w.CPrint(color, repeat(w.border.horizontal, w.width))
+	}
+	if bottom {
+		w.Move(w.height-1, 0)
+		w.CPrint(color, repeat(w.border.horizontal, w.width))
+	}
+}
+
+func (w *LightWindow) drawBorderVertical(left, right bool) {
+	width := w.width - 2
+	if !left || !right {
+		width++
+	}
+	color := ColBorder
+	if w.preview {
+		color = ColPreviewBorder
+	}
+	for y := 0; y < w.height; y++ {
+		w.Move(y, 0)
+		if left {
+			w.CPrint(color, string(w.border.vertical))
+		}
+		w.CPrint(color, repeat(' ', width))
+		if right {
+			w.CPrint(color, string(w.border.vertical))
+		}
+	}
 }
 
 func (w *LightWindow) drawBorderAround() {
 	w.Move(0, 0)
-	w.CPrint(ColBorder, AttrRegular, "┌"+repeat("─", w.width-2)+"┐")
+	color := ColBorder
+	if w.preview {
+		color = ColPreviewBorder
+	}
+	w.CPrint(color, string(w.border.topLeft)+repeat(w.border.horizontal, w.width-2)+string(w.border.topRight))
 	for y := 1; y < w.height-1; y++ {
 		w.Move(y, 0)
-		w.CPrint(ColBorder, AttrRegular, "│")
-		w.cprint2(colDefault, w.bg, AttrRegular, repeat(" ", w.width-2))
-		w.CPrint(ColBorder, AttrRegular, "│")
+		w.CPrint(color, string(w.border.vertical))
+		w.CPrint(color, repeat(' ', w.width-2))
+		w.CPrint(color, string(w.border.vertical))
 	}
 	w.Move(w.height-1, 0)
-	w.CPrint(ColBorder, AttrRegular, "└"+repeat("─", w.width-2)+"┘")
+	w.CPrint(color, string(w.border.bottomLeft)+repeat(w.border.horizontal, w.width-2)+string(w.border.bottomRight))
 }
 
 func (w *LightWindow) csi(code string) {
 	w.renderer.csi(code)
 }
 
-func (w *LightWindow) stderr(str string) {
-	w.renderer.stderr(str)
-}
-
 func (w *LightWindow) stderrInternal(str string, allowNLCR bool) {
 	w.renderer.stderrInternal(str, allowNLCR)
 }
@@ -727,12 +799,15 @@ func (w *LightWindow) MoveAndClear(y int, x int) {
 	w.Move(y, x)
 	// We should not delete preview window on the right
 	// csi("K")
-	w.Print(repeat(" ", w.width-x))
+	w.Print(repeat(' ', w.width-x))
 	w.Move(y, x)
 }
 
 func attrCodes(attr Attr) []string {
 	codes := []string{}
+	if (attr & AttrClear) > 0 {
+		return codes
+	}
 	if (attr & Bold) > 0 {
 		codes = append(codes, "1")
 	}
@@ -789,15 +864,11 @@ func (w *LightWindow) Print(text string) {
 }
 
 func cleanse(str string) string {
-	return strings.Replace(str, "\x1b", "?", -1)
+	return strings.Replace(str, "\x1b", "", -1)
 }
 
-func (w *LightWindow) CPrint(pair ColorPair, attr Attr, text string) {
-	if !w.colored {
-		w.csiColor(colDefault, colDefault, attrFor(pair, attr))
-	} else {
-		w.csiColor(pair.Fg(), pair.Bg(), attr)
-	}
+func (w *LightWindow) CPrint(pair ColorPair, text string) {
+	w.csiColor(pair.Fg(), pair.Bg(), pair.Attr())
 	w.stderrInternal(cleanse(text), false)
 	w.csi("m")
 }
@@ -819,11 +890,11 @@ func wrapLine(input string, prefixLength int, max int, tabstop int) []wrappedLin
 	width := 0
 	line := ""
 	for _, r := range input {
-		w := util.Max(util.RuneWidth(r, prefixLength+width, 8), 1)
+		w := util.RuneWidth(r, prefixLength+width, 8)
 		width += w
 		str := string(r)
 		if r == '\t' {
-			str = repeat(" ", w)
+			str = repeat(' ', w)
 		}
 		if prefixLength+width <= max {
 			line += str
@@ -843,12 +914,6 @@ func (w *LightWindow) fill(str string, onMove func()) FillReturn {
 	for i, line := range allLines {
 		lines := wrapLine(line, w.posx, w.width, w.tabstop)
 		for j, wl := range lines {
-			if w.posx >= w.Width()-1 && wl.displayWidth == 0 {
-				if w.posy < w.height-1 {
-					w.Move(w.posy+1, 0)
-				}
-				return FillNextLine
-			}
 			w.stderrInternal(wl.text, false)
 			w.posx += wl.displayWidth
 
@@ -863,6 +928,14 @@ func (w *LightWindow) fill(str string, onMove func()) FillReturn {
 			}
 		}
 	}
+	if w.posx+1 >= w.Width() {
+		if w.posy+1 >= w.height {
+			return FillSuspend
+		}
+		w.Move(w.posy+1, 0)
+		onMove()
+		return FillNextLine
+	}
 	return FillContinue
 }
 

src/tui/light_unix.go

@@ -0,0 +1,110 @@
+// +build !windows
+
+package tui
+
+import (
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+	"syscall"
+
+	"github.com/junegunn/fzf/src/util"
+	"golang.org/x/term"
+)
+
+func IsLightRendererSupported() bool {
+	return true
+}
+
+func (r *LightRenderer) defaultTheme() *ColorTheme {
+	if strings.Contains(os.Getenv("TERM"), "256") {
+		return Dark256
+	}
+	colors, err := exec.Command("tput", "colors").Output()
+	if err == nil && atoi(strings.TrimSpace(string(colors)), 16) > 16 {
+		return Dark256
+	}
+	return Default16
+}
+
+func (r *LightRenderer) fd() int {
+	return int(r.ttyin.Fd())
+}
+
+func (r *LightRenderer) initPlatform() error {
+	fd := r.fd()
+	origState, err := term.GetState(fd)
+	if err != nil {
+		return err
+	}
+	r.origState = origState
+	term.MakeRaw(fd)
+	return nil
+}
+
+func (r *LightRenderer) closePlatform() {
+	// NOOP
+}
+
+func openTtyIn() *os.File {
+	in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0)
+	if err != nil {
+		tty := ttyname()
+		if len(tty) > 0 {
+			if in, err := os.OpenFile(tty, syscall.O_RDONLY, 0); err == nil {
+				return in
+			}
+		}
+		fmt.Fprintln(os.Stderr, "Failed to open "+consoleDevice)
+		os.Exit(2)
+	}
+	return in
+}
+
+func (r *LightRenderer) setupTerminal() {
+	term.MakeRaw(r.fd())
+}
+
+func (r *LightRenderer) restoreTerminal() {
+	term.Restore(r.fd(), r.origState)
+}
+
+func (r *LightRenderer) updateTerminalSize() {
+	width, height, err := term.GetSize(r.fd())
+
+	if err == nil {
+		r.width = width
+		r.height = r.maxHeightFunc(height)
+	} else {
+		r.width = getEnv("COLUMNS", defaultWidth)
+		r.height = r.maxHeightFunc(getEnv("LINES", defaultHeight))
+	}
+}
+
+func (r *LightRenderer) findOffset() (row int, col int) {
+	r.csi("6n")
+	r.flush()
+	bytes := []byte{}
+	for tries := 0; tries < offsetPollTries; tries++ {
+		bytes = r.getBytesInternal(bytes, tries > 0)
+		offsets := offsetRegexp.FindSubmatch(bytes)
+		if len(offsets) > 3 {
+			// Add anything we skipped over to the input buffer
+			r.buffer = append(r.buffer, offsets[1]...)
+			return atoi(string(offsets[2]), 0) - 1, atoi(string(offsets[3]), 0) - 1
+		}
+	}
+	return -1, -1
+}
+
+func (r *LightRenderer) getch(nonblock bool) (int, bool) {
+	b := make([]byte, 1)
+	fd := r.fd()
+	util.SetNonblock(r.ttyin, nonblock)
+	_, err := util.Read(fd, b)
+	if err != nil {
+		return 0, false
+	}
+	return int(b[0]), true
+}

src/tui/light_windows.go

@@ -0,0 +1,142 @@
+//+build windows
+
+package tui
+
+import (
+	"os"
+	"syscall"
+	"time"
+
+	"github.com/junegunn/fzf/src/util"
+	"golang.org/x/sys/windows"
+)
+
+const (
+	timeoutInterval = 10
+)
+
+var (
+	consoleFlagsInput  = uint32(windows.ENABLE_VIRTUAL_TERMINAL_INPUT | windows.ENABLE_PROCESSED_INPUT | windows.ENABLE_EXTENDED_FLAGS)
+	consoleFlagsOutput = uint32(windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING | windows.ENABLE_PROCESSED_OUTPUT | windows.DISABLE_NEWLINE_AUTO_RETURN)
+)
+
+// IsLightRendererSupported checks to see if the Light renderer is supported
+func IsLightRendererSupported() bool {
+	var oldState uint32
+	// enable vt100 emulation (https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences)
+	if windows.GetConsoleMode(windows.Stderr, &oldState) != nil {
+		return false
+	}
+	// attempt to set mode to determine if we support VT 100 codes. This will work on newer Windows 10
+	// version:
+	canSetVt100 := windows.SetConsoleMode(windows.Stderr, oldState|windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING) == nil
+	var checkState uint32
+	if windows.GetConsoleMode(windows.Stderr, &checkState) != nil ||
+		(checkState&windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING) != windows.ENABLE_VIRTUAL_TERMINAL_PROCESSING {
+		return false
+	}
+	windows.SetConsoleMode(windows.Stderr, oldState)
+	return canSetVt100
+}
+
+func (r *LightRenderer) defaultTheme() *ColorTheme {
+	// the getenv check is borrowed from here: https://github.com/gdamore/tcell/commit/0c473b86d82f68226a142e96cc5a34c5a29b3690#diff-b008fcd5e6934bf31bc3d33bf49f47d8R178:
+	if !IsLightRendererSupported() || os.Getenv("ConEmuPID") != "" || os.Getenv("TCELL_TRUECOLOR") == "disable" {
+		return Default16
+	}
+	return Dark256
+}
+
+func (r *LightRenderer) initPlatform() error {
+	//outHandle := windows.Stdout
+	outHandle, _ := syscall.Open("CONOUT$", syscall.O_RDWR, 0)
+	// enable vt100 emulation (https://docs.microsoft.com/en-us/windows/console/console-virtual-terminal-sequences)
+	if err := windows.GetConsoleMode(windows.Handle(outHandle), &r.origStateOutput); err != nil {
+		return err
+	}
+	r.outHandle = uintptr(outHandle)
+	inHandle, _ := syscall.Open("CONIN$", syscall.O_RDWR, 0)
+	if err := windows.GetConsoleMode(windows.Handle(inHandle), &r.origStateInput); err != nil {
+		return err
+	}
+	r.inHandle = uintptr(inHandle)
+
+	r.setupTerminal()
+
+	// channel for non-blocking reads. Buffer to make sure
+	// we get the ESC sets:
+	r.ttyinChannel = make(chan byte, 1024)
+
+	// the following allows for non-blocking IO.
+	// syscall.SetNonblock() is a NOOP under Windows.
+	go func() {
+		fd := int(r.inHandle)
+		b := make([]byte, 1)
+		for {
+			_, err := util.Read(fd, b)
+			if err == nil {
+				r.ttyinChannel <- b[0]
+			}
+		}
+	}()
+
+	return nil
+}
+
+func (r *LightRenderer) closePlatform() {
+	windows.SetConsoleMode(windows.Handle(r.outHandle), r.origStateOutput)
+	windows.SetConsoleMode(windows.Handle(r.inHandle), r.origStateInput)
+}
+
+func openTtyIn() *os.File {
+	// not used
+	return nil
+}
+
+func (r *LightRenderer) setupTerminal() error {
+	if err := windows.SetConsoleMode(windows.Handle(r.outHandle), consoleFlagsOutput); err != nil {
+		return err
+	}
+	return windows.SetConsoleMode(windows.Handle(r.inHandle), consoleFlagsInput)
+}
+
+func (r *LightRenderer) restoreTerminal() error {
+	if err := windows.SetConsoleMode(windows.Handle(r.inHandle), r.origStateInput); err != nil {
+		return err
+	}
+	return windows.SetConsoleMode(windows.Handle(r.outHandle), r.origStateOutput)
+}
+
+func (r *LightRenderer) updateTerminalSize() {
+	var bufferInfo windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(r.outHandle), &bufferInfo); err != nil {
+		r.width = getEnv("COLUMNS", defaultWidth)
+		r.height = r.maxHeightFunc(getEnv("LINES", defaultHeight))
+
+	} else {
+		r.width = int(bufferInfo.Window.Right - bufferInfo.Window.Left)
+		r.height = r.maxHeightFunc(int(bufferInfo.Window.Bottom - bufferInfo.Window.Top))
+	}
+}
+
+func (r *LightRenderer) findOffset() (row int, col int) {
+	var bufferInfo windows.ConsoleScreenBufferInfo
+	if err := windows.GetConsoleScreenBufferInfo(windows.Handle(r.outHandle), &bufferInfo); err != nil {
+		return -1, -1
+	}
+	return int(bufferInfo.CursorPosition.X), int(bufferInfo.CursorPosition.Y)
+}
+
+func (r *LightRenderer) getch(nonblock bool) (int, bool) {
+	if nonblock {
+		select {
+		case bc := <-r.ttyinChannel:
+			return int(bc), true
+		case <-time.After(timeoutInterval * time.Millisecond):
+			return 0, false
+		}
+	} else {
+		bc := <-r.ttyinChannel
+		return int(bc), true
+	}
+}

src/tui/tcell.go

@@ -28,10 +28,12 @@ type Attr tcell.Style
 
 type TcellWindow struct {
 	color       bool
+	preview     bool
 	top         int
 	left        int
 	width       int
 	height      int
+	normal      ColorPair
 	lastX       int
 	lastY       int
 	moveCursor  bool
@@ -61,12 +63,8 @@ func (w *TcellWindow) Refresh() {
 	}
 	w.lastX = 0
 	w.lastY = 0
-	switch w.borderStyle {
-	case BorderAround:
-		w.drawBorder(true)
-	case BorderHorizontal:
-		w.drawBorder(false)
-	}
+
+	w.drawBorder()
 }
 
 func (w *TcellWindow) FinishFill() {
@@ -79,11 +77,13 @@ const (
 	Blink          = Attr(tcell.AttrBlink)
 	Reverse        = Attr(tcell.AttrReverse)
 	Underline      = Attr(tcell.AttrUnderline)
-	Italic         = Attr(tcell.AttrNone) // Not supported
+	Italic         = Attr(tcell.AttrItalic)
 )
 
 const (
-	AttrRegular Attr = 0
+	AttrUndefined = Attr(0)
+	AttrRegular   = Attr(1 << 7)
+	AttrClear     = Attr(1 << 8)
 )
 
 func (r *FullscreenRenderer) defaultTheme() *ColorTheme {
@@ -168,10 +168,6 @@ func (w *TcellWindow) Y() int {
 	return w.lastY
 }
 
-func (r *FullscreenRenderer) DoesAutoWrap() bool {
-	return false
-}
-
 func (r *FullscreenRenderer) Clear() {
 	_screen.Sync()
 	_screen.Clear()
@@ -193,19 +189,22 @@ func (r *FullscreenRenderer) GetChar() Event {
 		button := ev.Buttons()
 		mod := ev.Modifiers() != 0
 		if button&tcell.WheelDown != 0 {
-			return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, mod}}
+			return Event{Mouse, 0, &MouseEvent{y, x, -1, false, false, false, mod}}
 		} else if button&tcell.WheelUp != 0 {
-			return Event{Mouse, 0, &MouseEvent{y, x, +1, false, false, mod}}
+			return Event{Mouse, 0, &MouseEvent{y, x, +1, false, false, false, mod}}
 		} else if runtime.GOOS != "windows" {
 			// double and single taps on Windows don't quite work due to
 			// the console acting on the events and not allowing us
 			// to consume them.
 
-			down := button&tcell.Button1 != 0 // left
+			left := button&tcell.Button1 != 0
+			down := left || button&tcell.Button3 != 0
 			double := false
 			if down {
 				now := time.Now()
-				if now.Sub(r.prevDownTime) < doubleClickDuration {
+				if !left {
+					r.clickY = []int{}
+				} else if now.Sub(r.prevDownTime) < doubleClickDuration {
 					r.clickY = append(r.clickY, x)
 				} else {
 					r.clickY = []int{x}
@@ -218,73 +217,82 @@ func (r *FullscreenRenderer) GetChar() Event {
 				}
 			}
 
-			return Event{Mouse, 0, &MouseEvent{y, x, 0, down, double, mod}}
+			return Event{Mouse, 0, &MouseEvent{y, x, 0, left, down, double, mod}}
 		}
 
 		// process keyboard:
 	case *tcell.EventKey:
-		alt := (ev.Modifiers() & tcell.ModAlt) > 0
-		keyfn := func(r rune) int {
+		mods := ev.Modifiers()
+		alt := (mods & tcell.ModAlt) > 0
+		shift := (mods & tcell.ModShift) > 0
+		altShift := alt && shift
+		keyfn := func(r rune) Event {
 			if alt {
-				return CtrlAltA - 'a' + int(r)
+				return CtrlAltKey(r)
 			}
-			return CtrlA - 'a' + int(r)
+			return EventType(CtrlA.Int() - 'a' + int(r)).AsEvent()
 		}
 		switch ev.Key() {
 		case tcell.KeyCtrlA:
-			return Event{keyfn('a'), 0, nil}
+			return keyfn('a')
 		case tcell.KeyCtrlB:
-			return Event{keyfn('b'), 0, nil}
+			return keyfn('b')
 		case tcell.KeyCtrlC:
-			return Event{keyfn('c'), 0, nil}
+			return keyfn('c')
 		case tcell.KeyCtrlD:
-			return Event{keyfn('d'), 0, nil}
+			return keyfn('d')
 		case tcell.KeyCtrlE:
-			return Event{keyfn('e'), 0, nil}
+			return keyfn('e')
 		case tcell.KeyCtrlF:
-			return Event{keyfn('f'), 0, nil}
+			return keyfn('f')
 		case tcell.KeyCtrlG:
-			return Event{keyfn('g'), 0, nil}
+			return keyfn('g')
 		case tcell.KeyCtrlH:
-			return Event{keyfn('h'), 0, nil}
+			return keyfn('h')
 		case tcell.KeyCtrlI:
-			return Event{keyfn('i'), 0, nil}
+			return keyfn('i')
 		case tcell.KeyCtrlJ:
-			return Event{keyfn('j'), 0, nil}
+			return keyfn('j')
 		case tcell.KeyCtrlK:
-			return Event{keyfn('k'), 0, nil}
+			return keyfn('k')
 		case tcell.KeyCtrlL:
-			return Event{keyfn('l'), 0, nil}
+			return keyfn('l')
 		case tcell.KeyCtrlM:
-			return Event{keyfn('m'), 0, nil}
+			return keyfn('m')
 		case tcell.KeyCtrlN:
-			return Event{keyfn('n'), 0, nil}
+			return keyfn('n')
 		case tcell.KeyCtrlO:
-			return Event{keyfn('o'), 0, nil}
+			return keyfn('o')
 		case tcell.KeyCtrlP:
-			return Event{keyfn('p'), 0, nil}
+			return keyfn('p')
 		case tcell.KeyCtrlQ:
-			return Event{keyfn('q'), 0, nil}
+			return keyfn('q')
 		case tcell.KeyCtrlR:
-			return Event{keyfn('r'), 0, nil}
+			return keyfn('r')
 		case tcell.KeyCtrlS:
-			return Event{keyfn('s'), 0, nil}
+			return keyfn('s')
 		case tcell.KeyCtrlT:
-			return Event{keyfn('t'), 0, nil}
+			return keyfn('t')
 		case tcell.KeyCtrlU:
-			return Event{keyfn('u'), 0, nil}
+			return keyfn('u')
 		case tcell.KeyCtrlV:
-			return Event{keyfn('v'), 0, nil}
+			return keyfn('v')
 		case tcell.KeyCtrlW:
-			return Event{keyfn('w'), 0, nil}
+			return keyfn('w')
 		case tcell.KeyCtrlX:
-			return Event{keyfn('x'), 0, nil}
+			return keyfn('x')
 		case tcell.KeyCtrlY:
-			return Event{keyfn('y'), 0, nil}
+			return keyfn('y')
 		case tcell.KeyCtrlZ:
-			return Event{keyfn('z'), 0, nil}
+			return keyfn('z')
 		case tcell.KeyCtrlSpace:
 			return Event{CtrlSpace, 0, nil}
+		case tcell.KeyCtrlBackslash:
+			return Event{CtrlBackSlash, 0, nil}
+		case tcell.KeyCtrlRightSq:
+			return Event{CtrlRightBracket, 0, nil}
+		case tcell.KeyCtrlUnderscore:
+			return Event{CtrlSlash, 0, nil}
 		case tcell.KeyBackspace2:
 			if alt {
 				return Event{AltBS, 0, nil}
@@ -292,14 +300,52 @@ func (r *FullscreenRenderer) GetChar() Event {
 			return Event{BSpace, 0, nil}
 
 		case tcell.KeyUp:
+			if altShift {
+				return Event{AltSUp, 0, nil}
+			}
+			if shift {
+				return Event{SUp, 0, nil}
+			}
+			if alt {
+				return Event{AltUp, 0, nil}
+			}
 			return Event{Up, 0, nil}
 		case tcell.KeyDown:
+			if altShift {
+				return Event{AltSDown, 0, nil}
+			}
+			if shift {
+				return Event{SDown, 0, nil}
+			}
+			if alt {
+				return Event{AltDown, 0, nil}
+			}
 			return Event{Down, 0, nil}
 		case tcell.KeyLeft:
+			if altShift {
+				return Event{AltSLeft, 0, nil}
+			}
+			if shift {
+				return Event{SLeft, 0, nil}
+			}
+			if alt {
+				return Event{AltLeft, 0, nil}
+			}
 			return Event{Left, 0, nil}
 		case tcell.KeyRight:
+			if altShift {
+				return Event{AltSRight, 0, nil}
+			}
+			if shift {
+				return Event{SRight, 0, nil}
+			}
+			if alt {
+				return Event{AltRight, 0, nil}
+			}
 			return Event{Right, 0, nil}
 
+		case tcell.KeyInsert:
+			return Event{Insert, 0, nil}
 		case tcell.KeyHome:
 			return Event{Home, 0, nil}
 		case tcell.KeyDelete:
@@ -343,18 +389,7 @@ func (r *FullscreenRenderer) GetChar() Event {
 		case tcell.KeyRune:
 			r := ev.Rune()
 			if alt {
-				switch r {
-				case ' ':
-					return Event{AltSpace, 0, nil}
-				case '/':
-					return Event{AltSlash, 0, nil}
-				}
-				if r >= 'a' && r <= 'z' {
-					return Event{AltA + int(r) - 'a', 0, nil}
-				}
-				if r >= '0' && r <= '9' {
-					return Event{Alt0 + int(r) - '0', 0, nil}
-				}
+				return AltKey(r)
 			}
 			return Event{Rune, r, nil}
 
@@ -367,12 +402,16 @@ func (r *FullscreenRenderer) GetChar() Event {
 	return Event{Invalid, 0, nil}
 }
 
-func (r *FullscreenRenderer) Pause(bool) {
-	_screen.Fini()
+func (r *FullscreenRenderer) Pause(clear bool) {
+	if clear {
+		_screen.Fini()
+	}
 }
 
-func (r *FullscreenRenderer) Resume(bool) {
-	r.initScreen()
+func (r *FullscreenRenderer) Resume(clear bool, sigcont bool) {
+	if clear {
+		r.initScreen()
+	}
 }
 
 func (r *FullscreenRenderer) Close() {
@@ -387,14 +426,19 @@ func (r *FullscreenRenderer) RefreshWindows(windows []Window) {
 	_screen.Show()
 }
 
-func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
-	// TODO
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window {
+	normal := ColNormal
+	if preview {
+		normal = ColPreview
+	}
 	return &TcellWindow{
-		color:       r.theme != nil,
+		color:       r.theme.Colored,
+		preview:     preview,
 		top:         top,
 		left:        left,
 		width:       width,
 		height:      height,
+		normal:      normal,
 		borderStyle: borderStyle}
 }
 
@@ -402,16 +446,16 @@ func (w *TcellWindow) Close() {
 	// TODO
 }
 
-func fill(x, y, w, h int, r rune) {
+func fill(x, y, w, h int, n ColorPair, r rune) {
 	for ly := 0; ly <= h; ly++ {
 		for lx := 0; lx <= w; lx++ {
-			_screen.SetContent(x+lx, y+ly, r, nil, ColNormal.style())
+			_screen.SetContent(x+lx, y+ly, r, nil, n.style())
 		}
 	}
 }
 
 func (w *TcellWindow) Erase() {
-	fill(w.left-1, w.top, w.width+1, w.height, ' ')
+	fill(w.left-1, w.top, w.width+1, w.height, w.normal, ' ')
 }
 
 func (w *TcellWindow) Enclose(y int, x int) bool {
@@ -428,33 +472,29 @@ func (w *TcellWindow) Move(y int, x int) {
 func (w *TcellWindow) MoveAndClear(y int, x int) {
 	w.Move(y, x)
 	for i := w.lastX; i < w.width; i++ {
-		_screen.SetContent(i+w.left, w.lastY+w.top, rune(' '), nil, ColNormal.style())
+		_screen.SetContent(i+w.left, w.lastY+w.top, rune(' '), nil, w.normal.style())
 	}
 	w.lastX = x
 }
 
 func (w *TcellWindow) Print(text string) {
-	w.printString(text, ColNormal, 0)
+	w.printString(text, w.normal)
 }
 
-func (w *TcellWindow) printString(text string, pair ColorPair, a Attr) {
+func (w *TcellWindow) printString(text string, pair ColorPair) {
 	t := text
 	lx := 0
+	a := pair.Attr()
 
-	var style tcell.Style
-	if w.color {
-		style = pair.style().
+	style := pair.style()
+	if a&AttrClear == 0 {
+		style = style.
 			Reverse(a&Attr(tcell.AttrReverse) != 0).
-			Underline(a&Attr(tcell.AttrUnderline) != 0)
-	} else {
-		style = ColNormal.style().
-			Reverse(a&Attr(tcell.AttrReverse) != 0 || pair == ColCurrent || pair == ColCurrentMatch).
-			Underline(a&Attr(tcell.AttrUnderline) != 0 || pair == ColMatch || pair == ColCurrentMatch)
+			Underline(a&Attr(tcell.AttrUnderline) != 0).
+			Italic(a&Attr(tcell.AttrItalic) != 0).
+			Blink(a&Attr(tcell.AttrBlink) != 0).
+			Dim(a&Attr(tcell.AttrDim) != 0)
 	}
-	style = style.
-		Blink(a&Attr(tcell.AttrBlink) != 0).
-		Bold(a&Attr(tcell.AttrBold) != 0).
-		Dim(a&Attr(tcell.AttrDim) != 0)
 
 	for {
 		if len(t) == 0 {
@@ -487,25 +527,27 @@ func (w *TcellWindow) printString(text string, pair ColorPair, a Attr) {
 	w.lastX += lx
 }
 
-func (w *TcellWindow) CPrint(pair ColorPair, attr Attr, text string) {
-	w.printString(text, pair, attr)
+func (w *TcellWindow) CPrint(pair ColorPair, text string) {
+	w.printString(text, pair)
 }
 
-func (w *TcellWindow) fillString(text string, pair ColorPair, a Attr) FillReturn {
+func (w *TcellWindow) fillString(text string, pair ColorPair) FillReturn {
 	lx := 0
+	a := pair.Attr()
 
 	var style tcell.Style
 	if w.color {
 		style = pair.style()
 	} else {
-		style = ColNormal.style()
+		style = w.normal.style()
 	}
 	style = style.
 		Blink(a&Attr(tcell.AttrBlink) != 0).
 		Bold(a&Attr(tcell.AttrBold) != 0).
 		Dim(a&Attr(tcell.AttrDim) != 0).
 		Reverse(a&Attr(tcell.AttrReverse) != 0).
-		Underline(a&Attr(tcell.AttrUnderline) != 0)
+		Underline(a&Attr(tcell.AttrUnderline) != 0).
+		Italic(a&Attr(tcell.AttrItalic) != 0)
 
 	for _, r := range text {
 		if r == '\n' {
@@ -533,25 +575,35 @@ func (w *TcellWindow) fillString(text string, pair ColorPair, a Attr) FillReturn
 		}
 	}
 	w.lastX += lx
+	if w.lastX == w.width {
+		w.lastY++
+		w.lastX = 0
+		return FillNextLine
+	}
 
 	return FillContinue
 }
 
 func (w *TcellWindow) Fill(str string) FillReturn {
-	return w.fillString(str, ColNormal, 0)
+	return w.fillString(str, w.normal)
 }
 
 func (w *TcellWindow) CFill(fg Color, bg Color, a Attr, str string) FillReturn {
 	if fg == colDefault {
-		fg = ColNormal.Fg()
+		fg = w.normal.Fg()
 	}
 	if bg == colDefault {
-		bg = ColNormal.Bg()
+		bg = w.normal.Bg()
 	}
-	return w.fillString(str, NewColorPair(fg, bg), a)
+	return w.fillString(str, NewColorPair(fg, bg, a))
 }
 
-func (w *TcellWindow) drawBorder(around bool) {
+func (w *TcellWindow) drawBorder() {
+	shape := w.borderStyle.shape
+	if shape == BorderNone {
+		return
+	}
+
 	left := w.left
 	right := left + w.width
 	top := w.top
@@ -559,25 +611,44 @@ func (w *TcellWindow) drawBorder(around bool) {
 
 	var style tcell.Style
 	if w.color {
-		style = ColBorder.style()
-	} else {
-		style = ColNormal.style()
-	}
-
-	for x := left; x < right; x++ {
-		_screen.SetContent(x, top, tcell.RuneHLine, nil, style)
-		_screen.SetContent(x, bot-1, tcell.RuneHLine, nil, style)
-	}
-
-	if around {
-		for y := top; y < bot; y++ {
-			_screen.SetContent(left, y, tcell.RuneVLine, nil, style)
-			_screen.SetContent(right-1, y, tcell.RuneVLine, nil, style)
+		if w.preview {
+			style = ColPreviewBorder.style()
+		} else {
+			style = ColBorder.style()
 		}
+	} else {
+		style = w.normal.style()
+	}
 
-		_screen.SetContent(left, top, tcell.RuneULCorner, nil, style)
-		_screen.SetContent(right-1, top, tcell.RuneURCorner, nil, style)
-		_screen.SetContent(left, bot-1, tcell.RuneLLCorner, nil, style)
-		_screen.SetContent(right-1, bot-1, tcell.RuneLRCorner, nil, style)
+	switch shape {
+	case BorderRounded, BorderSharp, BorderHorizontal, BorderTop:
+		for x := left; x < right; x++ {
+			_screen.SetContent(x, top, w.borderStyle.horizontal, nil, style)
+		}
+	}
+	switch shape {
+	case BorderRounded, BorderSharp, BorderHorizontal, BorderBottom:
+		for x := left; x < right; x++ {
+			_screen.SetContent(x, bot-1, w.borderStyle.horizontal, nil, style)
+		}
+	}
+	switch shape {
+	case BorderRounded, BorderSharp, BorderVertical, BorderLeft:
+		for y := top; y < bot; y++ {
+			_screen.SetContent(left, y, w.borderStyle.vertical, nil, style)
+		}
+	}
+	switch shape {
+	case BorderRounded, BorderSharp, BorderVertical, BorderRight:
+		for y := top; y < bot; y++ {
+			_screen.SetContent(right-1, y, w.borderStyle.vertical, nil, style)
+		}
+	}
+	switch shape {
+	case BorderRounded, BorderSharp:
+		_screen.SetContent(left, top, w.borderStyle.topLeft, nil, style)
+		_screen.SetContent(right-1, top, w.borderStyle.topRight, nil, style)
+		_screen.SetContent(left, bot-1, w.borderStyle.bottomLeft, nil, style)
+		_screen.SetContent(right-1, bot-1, w.borderStyle.bottomRight, nil, style)
 	}
 }

src/tui/ttyname_unix.go

@@ -0,0 +1,47 @@
+// +build !windows
+
+package tui
+
+import (
+	"io/ioutil"
+	"os"
+	"syscall"
+)
+
+var devPrefixes = [...]string{"/dev/pts/", "/dev/"}
+
+func ttyname() string {
+	var stderr syscall.Stat_t
+	if syscall.Fstat(2, &stderr) != nil {
+		return ""
+	}
+
+	for _, prefix := range devPrefixes {
+		files, err := ioutil.ReadDir(prefix)
+		if err != nil {
+			continue
+		}
+
+		for _, file := range files {
+			if stat, ok := file.Sys().(*syscall.Stat_t); ok && stat.Rdev == stderr.Rdev {
+				return prefix + file.Name()
+			}
+		}
+	}
+	return ""
+}
+
+// TtyIn returns terminal device to be used as STDIN, falls back to os.Stdin
+func TtyIn() *os.File {
+	in, err := os.OpenFile(consoleDevice, syscall.O_RDONLY, 0)
+	if err != nil {
+		tty := ttyname()
+		if len(tty) > 0 {
+			if in, err := os.OpenFile(tty, syscall.O_RDONLY, 0); err == nil {
+				return in
+			}
+		}
+		return os.Stdin
+	}
+	return in
+}

src/tui/ttyname_windows.go

@@ -0,0 +1,14 @@
+// +build windows
+
+package tui
+
+import "os"
+
+func ttyname() string {
+	return ""
+}
+
+// TtyIn on Windows returns os.Stdin
+func TtyIn() *os.File {
+	return os.Stdin
+}

src/tui/tui.go

@@ -8,8 +8,10 @@ import (
 )
 
 // Types of user action
+type EventType int
+
 const (
-	Rune = iota
+	Rune EventType = iota
 
 	CtrlA
 	CtrlB
@@ -40,10 +42,18 @@ const (
 	ESC
 	CtrlSpace
 
+	// https://apple.stackexchange.com/questions/24261/how-do-i-send-c-that-is-control-slash-to-the-terminal
+	CtrlBackSlash
+	CtrlRightBracket
+	CtrlCaret
+	CtrlSlash
+
 	Invalid
 	Resize
 	Mouse
 	DoubleClick
+	LeftClick
+	RightClick
 
 	BTab
 	BSpace
@@ -58,7 +68,10 @@ const (
 	Right
 	Home
 	End
+	Insert
 
+	SUp
+	SDown
 	SLeft
 	SRight
 
@@ -76,25 +89,52 @@ const (
 	F12
 
 	Change
+	BackwardEOF
 
-	AltSpace
-	AltSlash
 	AltBS
 
-	Alt0
+	AltUp
+	AltDown
+	AltLeft
+	AltRight
+
+	AltSUp
+	AltSDown
+	AltSLeft
+	AltSRight
+
+	Alt
+	CtrlAlt
 )
 
-const ( // Reset iota
-	AltA = Alt0 + 'a' - '0' + iota
-	AltB
-	AltC
-	AltD
-	AltE
-	AltF
-	AltZ     = AltA + 'z' - 'a'
-	CtrlAltA = AltZ + 1
-	CtrlAltM = CtrlAltA + 'm' - 'a'
-)
+func (t EventType) AsEvent() Event {
+	return Event{t, 0, nil}
+}
+
+func (t EventType) Int() int {
+	return int(t)
+}
+
+func (t EventType) Byte() byte {
+	return byte(t)
+}
+
+func (e Event) Comparable() Event {
+	// Ignore MouseEvent pointer
+	return Event{e.Type, e.Char, nil}
+}
+
+func Key(r rune) Event {
+	return Event{Rune, r, nil}
+}
+
+func AltKey(r rune) Event {
+	return Event{Alt, r, nil}
+}
+
+func CtrlAltKey(r rune) Event {
+	return Event{CtrlAlt, r, nil}
+}
 
 const (
 	doubleClickDuration = 500 * time.Millisecond
@@ -102,13 +142,26 @@ const (
 
 type Color int32
 
+func (c Color) IsDefault() bool {
+	return c == colDefault
+}
+
 func (c Color) is24() bool {
 	return c > 0 && (c&(1<<24)) > 0
 }
 
+type ColorAttr struct {
+	Color Color
+	Attr  Attr
+}
+
+func NewColorAttr() ColorAttr {
+	return ColorAttr{Color: colUndefined, Attr: AttrUndefined}
+}
+
 const (
 	colUndefined Color = -2
-	colDefault         = -1
+	colDefault   Color = -1
 )
 
 const (
@@ -131,9 +184,9 @@ const (
 )
 
 type ColorPair struct {
-	fg Color
-	bg Color
-	id int
+	fg   Color
+	bg   Color
+	attr Attr
 }
 
 func HexToColor(rrggbb string) Color {
@@ -143,8 +196,8 @@ func HexToColor(rrggbb string) Color {
 	return Color((1 << 24) + (r << 16) + (g << 8) + b)
 }
 
-func NewColorPair(fg Color, bg Color) ColorPair {
-	return ColorPair{fg, bg, -1}
+func NewColorPair(fg Color, bg Color, attr Attr) ColorPair {
+	return ColorPair{fg, bg, attr}
 }
 
 func (p ColorPair) Fg() Color {
@@ -155,28 +208,69 @@ func (p ColorPair) Bg() Color {
 	return p.bg
 }
 
-func (p ColorPair) is24() bool {
-	return p.fg.is24() || p.bg.is24()
+func (p ColorPair) Attr() Attr {
+	return p.attr
+}
+
+func (p ColorPair) HasBg() bool {
+	return p.attr&Reverse == 0 && p.bg != colDefault ||
+		p.attr&Reverse > 0 && p.fg != colDefault
+}
+
+func (p ColorPair) merge(other ColorPair, except Color) ColorPair {
+	dup := p
+	dup.attr = dup.attr.Merge(other.attr)
+	if other.fg != except {
+		dup.fg = other.fg
+	}
+	if other.bg != except {
+		dup.bg = other.bg
+	}
+	return dup
+}
+
+func (p ColorPair) WithAttr(attr Attr) ColorPair {
+	dup := p
+	dup.attr = dup.attr.Merge(attr)
+	return dup
+}
+
+func (p ColorPair) MergeAttr(other ColorPair) ColorPair {
+	return p.WithAttr(other.attr)
+}
+
+func (p ColorPair) Merge(other ColorPair) ColorPair {
+	return p.merge(other, colUndefined)
+}
+
+func (p ColorPair) MergeNonDefault(other ColorPair) ColorPair {
+	return p.merge(other, colDefault)
 }
 
 type ColorTheme struct {
-	Fg           Color
-	Bg           Color
-	DarkBg       Color
-	Prompt       Color
-	Match        Color
-	Current      Color
-	CurrentMatch Color
-	Spinner      Color
-	Info         Color
-	Cursor       Color
-	Selected     Color
-	Header       Color
-	Border       Color
+	Colored      bool
+	Input        ColorAttr
+	Disabled     ColorAttr
+	Fg           ColorAttr
+	Bg           ColorAttr
+	PreviewFg    ColorAttr
+	PreviewBg    ColorAttr
+	DarkBg       ColorAttr
+	Gutter       ColorAttr
+	Prompt       ColorAttr
+	Match        ColorAttr
+	Current      ColorAttr
+	CurrentMatch ColorAttr
+	Spinner      ColorAttr
+	Info         ColorAttr
+	Cursor       ColorAttr
+	Selected     ColorAttr
+	Header       ColorAttr
+	Border       ColorAttr
 }
 
 type Event struct {
-	Type       int
+	Type       EventType
 	Char       rune
 	MouseEvent *MouseEvent
 }
@@ -185,23 +279,87 @@ type MouseEvent struct {
 	Y      int
 	X      int
 	S      int
+	Left   bool
 	Down   bool
 	Double bool
 	Mod    bool
 }
 
-type BorderStyle int
+type BorderShape int
 
 const (
-	BorderNone BorderStyle = iota
-	BorderAround
+	BorderNone BorderShape = iota
+	BorderRounded
+	BorderSharp
 	BorderHorizontal
+	BorderVertical
+	BorderTop
+	BorderBottom
+	BorderLeft
+	BorderRight
 )
 
+type BorderStyle struct {
+	shape       BorderShape
+	horizontal  rune
+	vertical    rune
+	topLeft     rune
+	topRight    rune
+	bottomLeft  rune
+	bottomRight rune
+}
+
+type BorderCharacter int
+
+func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
+	if unicode {
+		if shape == BorderRounded {
+			return BorderStyle{
+				shape:       shape,
+				horizontal:  '─',
+				vertical:    '│',
+				topLeft:     '╭',
+				topRight:    '╮',
+				bottomLeft:  '╰',
+				bottomRight: '╯',
+			}
+		}
+		return BorderStyle{
+			shape:       shape,
+			horizontal:  '─',
+			vertical:    '│',
+			topLeft:     '┌',
+			topRight:    '┐',
+			bottomLeft:  '└',
+			bottomRight: '┘',
+		}
+	}
+	return BorderStyle{
+		shape:       shape,
+		horizontal:  '-',
+		vertical:    '|',
+		topLeft:     '+',
+		topRight:    '+',
+		bottomLeft:  '+',
+		bottomRight: '+',
+	}
+}
+
+func MakeTransparentBorder() BorderStyle {
+	return BorderStyle{
+		shape:       BorderRounded,
+		horizontal:  ' ',
+		vertical:    ' ',
+		topLeft:     ' ',
+		topRight:    ' ',
+		bottomLeft:  ' ',
+		bottomRight: ' '}
+}
+
 type Renderer interface {
 	Init()
 	Pause(clear bool)
-	Resume(clear bool)
+	Resume(clear bool, sigcont bool)
 	Clear()
 	RefreshWindows(windows []Window)
 	Refresh()
@@ -211,9 +369,8 @@ type Renderer interface {
 
 	MaxX() int
 	MaxY() int
-	DoesAutoWrap() bool
 
-	NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window
+	NewWindow(top int, left int, width int, height int, preview bool, borderStyle BorderStyle) Window
 }
 
 type Window interface {
@@ -233,7 +390,7 @@ type Window interface {
 	Move(y int, x int)
 	MoveAndClear(y int, x int)
 	Print(text string)
-	CPrint(color ColorPair, attr Attr, text string)
+	CPrint(color ColorPair, text string)
 	Fill(text string) FillReturn
 	CFill(fg Color, bg Color, attr Attr, text string) FillReturn
 	Erase()
@@ -262,34 +419,72 @@ var (
 	Dark256   *ColorTheme
 	Light256  *ColorTheme
 
-	ColNormal       ColorPair
-	ColPrompt       ColorPair
-	ColMatch        ColorPair
-	ColCurrent      ColorPair
-	ColCurrentMatch ColorPair
-	ColSpinner      ColorPair
-	ColInfo         ColorPair
-	ColCursor       ColorPair
-	ColSelected     ColorPair
-	ColHeader       ColorPair
-	ColBorder       ColorPair
+	ColPrompt               ColorPair
+	ColNormal               ColorPair
+	ColInput                ColorPair
+	ColDisabled             ColorPair
+	ColMatch                ColorPair
+	ColCursor               ColorPair
+	ColCursorEmpty          ColorPair
+	ColSelected             ColorPair
+	ColCurrent              ColorPair
+	ColCurrentMatch         ColorPair
+	ColCurrentCursor        ColorPair
+	ColCurrentCursorEmpty   ColorPair
+	ColCurrentSelected      ColorPair
+	ColCurrentSelectedEmpty ColorPair
+	ColSpinner              ColorPair
+	ColInfo                 ColorPair
+	ColHeader               ColorPair
+	ColBorder               ColorPair
+	ColPreview              ColorPair
+	ColPreviewBorder        ColorPair
 )
 
 func EmptyTheme() *ColorTheme {
 	return &ColorTheme{
-		Fg:           colUndefined,
-		Bg:           colUndefined,
-		DarkBg:       colUndefined,
-		Prompt:       colUndefined,
-		Match:        colUndefined,
-		Current:      colUndefined,
-		CurrentMatch: colUndefined,
-		Spinner:      colUndefined,
-		Info:         colUndefined,
-		Cursor:       colUndefined,
-		Selected:     colUndefined,
-		Header:       colUndefined,
-		Border:       colUndefined}
+		Colored:      true,
+		Input:        ColorAttr{colUndefined, AttrUndefined},
+		Disabled:     ColorAttr{colUndefined, AttrUndefined},
+		Fg:           ColorAttr{colUndefined, AttrUndefined},
+		Bg:           ColorAttr{colUndefined, AttrUndefined},
+		PreviewFg:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewBg:    ColorAttr{colUndefined, AttrUndefined},
+		DarkBg:       ColorAttr{colUndefined, AttrUndefined},
+		Gutter:       ColorAttr{colUndefined, AttrUndefined},
+		Prompt:       ColorAttr{colUndefined, AttrUndefined},
+		Match:        ColorAttr{colUndefined, AttrUndefined},
+		Current:      ColorAttr{colUndefined, AttrUndefined},
+		CurrentMatch: ColorAttr{colUndefined, AttrUndefined},
+		Spinner:      ColorAttr{colUndefined, AttrUndefined},
+		Info:         ColorAttr{colUndefined, AttrUndefined},
+		Cursor:       ColorAttr{colUndefined, AttrUndefined},
+		Selected:     ColorAttr{colUndefined, AttrUndefined},
+		Header:       ColorAttr{colUndefined, AttrUndefined},
+		Border:       ColorAttr{colUndefined, AttrUndefined}}
+}
+
+func NoColorTheme() *ColorTheme {
+	return &ColorTheme{
+		Colored:      false,
+		Input:        ColorAttr{colDefault, AttrRegular},
+		Disabled:     ColorAttr{colDefault, AttrRegular},
+		Fg:           ColorAttr{colDefault, AttrRegular},
+		Bg:           ColorAttr{colDefault, AttrRegular},
+		PreviewFg:    ColorAttr{colDefault, AttrRegular},
+		PreviewBg:    ColorAttr{colDefault, AttrRegular},
+		DarkBg:       ColorAttr{colDefault, AttrRegular},
+		Gutter:       ColorAttr{colDefault, AttrRegular},
+		Prompt:       ColorAttr{colDefault, AttrRegular},
+		Match:        ColorAttr{colDefault, Underline},
+		Current:      ColorAttr{colDefault, Reverse},
+		CurrentMatch: ColorAttr{colDefault, Reverse | Underline},
+		Spinner:      ColorAttr{colDefault, AttrRegular},
+		Info:         ColorAttr{colDefault, AttrRegular},
+		Cursor:       ColorAttr{colDefault, AttrRegular},
+		Selected:     ColorAttr{colDefault, AttrRegular},
+		Header:       ColorAttr{colDefault, AttrRegular},
+		Border:       ColorAttr{colDefault, AttrRegular}}
 }
 
 func errorExit(message string) {
@@ -299,68 +494,90 @@ func errorExit(message string) {
 
 func init() {
 	Default16 = &ColorTheme{
-		Fg:           colDefault,
-		Bg:           colDefault,
-		DarkBg:       colBlack,
-		Prompt:       colBlue,
-		Match:        colGreen,
-		Current:      colYellow,
-		CurrentMatch: colGreen,
-		Spinner:      colGreen,
-		Info:         colWhite,
-		Cursor:       colRed,
-		Selected:     colMagenta,
-		Header:       colCyan,
-		Border:       colBlack}
+		Colored:      true,
+		Input:        ColorAttr{colDefault, AttrUndefined},
+		Disabled:     ColorAttr{colUndefined, AttrUndefined},
+		Fg:           ColorAttr{colDefault, AttrUndefined},
+		Bg:           ColorAttr{colDefault, AttrUndefined},
+		PreviewFg:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewBg:    ColorAttr{colUndefined, AttrUndefined},
+		DarkBg:       ColorAttr{colBlack, AttrUndefined},
+		Gutter:       ColorAttr{colUndefined, AttrUndefined},
+		Prompt:       ColorAttr{colBlue, AttrUndefined},
+		Match:        ColorAttr{colGreen, AttrUndefined},
+		Current:      ColorAttr{colYellow, AttrUndefined},
+		CurrentMatch: ColorAttr{colGreen, AttrUndefined},
+		Spinner:      ColorAttr{colGreen, AttrUndefined},
+		Info:         ColorAttr{colWhite, AttrUndefined},
+		Cursor:       ColorAttr{colRed, AttrUndefined},
+		Selected:     ColorAttr{colMagenta, AttrUndefined},
+		Header:       ColorAttr{colCyan, AttrUndefined},
+		Border:       ColorAttr{colBlack, AttrUndefined}}
 	Dark256 = &ColorTheme{
-		Fg:           colDefault,
-		Bg:           colDefault,
-		DarkBg:       236,
-		Prompt:       110,
-		Match:        108,
-		Current:      254,
-		CurrentMatch: 151,
-		Spinner:      148,
-		Info:         144,
-		Cursor:       161,
-		Selected:     168,
-		Header:       109,
-		Border:       59}
+		Colored:      true,
+		Input:        ColorAttr{colDefault, AttrUndefined},
+		Disabled:     ColorAttr{colUndefined, AttrUndefined},
+		Fg:           ColorAttr{colDefault, AttrUndefined},
+		Bg:           ColorAttr{colDefault, AttrUndefined},
+		PreviewFg:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewBg:    ColorAttr{colUndefined, AttrUndefined},
+		DarkBg:       ColorAttr{236, AttrUndefined},
+		Gutter:       ColorAttr{colUndefined, AttrUndefined},
+		Prompt:       ColorAttr{110, AttrUndefined},
+		Match:        ColorAttr{108, AttrUndefined},
+		Current:      ColorAttr{254, AttrUndefined},
+		CurrentMatch: ColorAttr{151, AttrUndefined},
+		Spinner:      ColorAttr{148, AttrUndefined},
+		Info:         ColorAttr{144, AttrUndefined},
+		Cursor:       ColorAttr{161, AttrUndefined},
+		Selected:     ColorAttr{168, AttrUndefined},
+		Header:       ColorAttr{109, AttrUndefined},
+		Border:       ColorAttr{59, AttrUndefined}}
 	Light256 = &ColorTheme{
-		Fg:           colDefault,
-		Bg:           colDefault,
-		DarkBg:       251,
-		Prompt:       25,
-		Match:        66,
-		Current:      237,
-		CurrentMatch: 23,
-		Spinner:      65,
-		Info:         101,
-		Cursor:       161,
-		Selected:     168,
-		Header:       31,
-		Border:       145}
+		Colored:      true,
+		Input:        ColorAttr{colDefault, AttrUndefined},
+		Disabled:     ColorAttr{colUndefined, AttrUndefined},
+		Fg:           ColorAttr{colDefault, AttrUndefined},
+		Bg:           ColorAttr{colDefault, AttrUndefined},
+		PreviewFg:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewBg:    ColorAttr{colUndefined, AttrUndefined},
+		DarkBg:       ColorAttr{251, AttrUndefined},
+		Gutter:       ColorAttr{colUndefined, AttrUndefined},
+		Prompt:       ColorAttr{25, AttrUndefined},
+		Match:        ColorAttr{66, AttrUndefined},
+		Current:      ColorAttr{237, AttrUndefined},
+		CurrentMatch: ColorAttr{23, AttrUndefined},
+		Spinner:      ColorAttr{65, AttrUndefined},
+		Info:         ColorAttr{101, AttrUndefined},
+		Cursor:       ColorAttr{161, AttrUndefined},
+		Selected:     ColorAttr{168, AttrUndefined},
+		Header:       ColorAttr{31, AttrUndefined},
+		Border:       ColorAttr{145, AttrUndefined}}
 }
 
 func initTheme(theme *ColorTheme, baseTheme *ColorTheme, forceBlack bool) {
-	if theme == nil {
-		initPalette(theme)
-		return
-	}
-
 	if forceBlack {
-		theme.Bg = colBlack
+		theme.Bg = ColorAttr{colBlack, AttrUndefined}
 	}
 
-	o := func(a Color, b Color) Color {
-		if b == colUndefined {
-			return a
+	o := func(a ColorAttr, b ColorAttr) ColorAttr {
+		c := a
+		if b.Color != colUndefined {
+			c.Color = b.Color
 		}
-		return b
+		if b.Attr != AttrUndefined {
+			c.Attr = b.Attr
+		}
+		return c
 	}
+	theme.Input = o(baseTheme.Input, theme.Input)
+	theme.Disabled = o(theme.Input, o(baseTheme.Disabled, theme.Disabled))
 	theme.Fg = o(baseTheme.Fg, theme.Fg)
 	theme.Bg = o(baseTheme.Bg, theme.Bg)
+	theme.PreviewFg = o(theme.Fg, o(baseTheme.PreviewFg, theme.PreviewFg))
+	theme.PreviewBg = o(theme.Bg, o(baseTheme.PreviewBg, theme.PreviewBg))
 	theme.DarkBg = o(baseTheme.DarkBg, theme.DarkBg)
+	theme.Gutter = o(theme.DarkBg, o(baseTheme.Gutter, theme.Gutter))
 	theme.Prompt = o(baseTheme.Prompt, theme.Prompt)
 	theme.Match = o(baseTheme.Match, theme.Match)
 	theme.Current = o(baseTheme.Current, theme.Current)
@@ -376,46 +593,33 @@ func initTheme(theme *ColorTheme, baseTheme *ColorTheme, forceBlack bool) {
 }
 
 func initPalette(theme *ColorTheme) {
-	idx := 0
-	pair := func(fg, bg Color) ColorPair {
-		idx++
-		return ColorPair{fg, bg, idx}
+	pair := func(fg, bg ColorAttr) ColorPair {
+		if fg.Color == colDefault && (fg.Attr&Reverse) > 0 {
+			bg.Color = colDefault
+		}
+		return ColorPair{fg.Color, bg.Color, fg.Attr}
 	}
-	if theme != nil {
-		ColNormal = pair(theme.Fg, theme.Bg)
-		ColPrompt = pair(theme.Prompt, theme.Bg)
-		ColMatch = pair(theme.Match, theme.Bg)
-		ColCurrent = pair(theme.Current, theme.DarkBg)
-		ColCurrentMatch = pair(theme.CurrentMatch, theme.DarkBg)
-		ColSpinner = pair(theme.Spinner, theme.Bg)
-		ColInfo = pair(theme.Info, theme.Bg)
-		ColCursor = pair(theme.Cursor, theme.DarkBg)
-		ColSelected = pair(theme.Selected, theme.DarkBg)
-		ColHeader = pair(theme.Header, theme.Bg)
-		ColBorder = pair(theme.Border, theme.Bg)
-	} else {
-		ColNormal = pair(colDefault, colDefault)
-		ColPrompt = pair(colDefault, colDefault)
-		ColMatch = pair(colDefault, colDefault)
-		ColCurrent = pair(colDefault, colDefault)
-		ColCurrentMatch = pair(colDefault, colDefault)
-		ColSpinner = pair(colDefault, colDefault)
-		ColInfo = pair(colDefault, colDefault)
-		ColCursor = pair(colDefault, colDefault)
-		ColSelected = pair(colDefault, colDefault)
-		ColHeader = pair(colDefault, colDefault)
-		ColBorder = pair(colDefault, colDefault)
-	}
-}
+	blank := theme.Fg
+	blank.Attr = AttrRegular
 
-func attrFor(color ColorPair, attr Attr) Attr {
-	switch color {
-	case ColCurrent:
-		return attr | Reverse
-	case ColMatch:
-		return attr | Underline
-	case ColCurrentMatch:
-		return attr | Underline | Reverse
-	}
-	return attr
+	ColPrompt = pair(theme.Prompt, theme.Bg)
+	ColNormal = pair(theme.Fg, theme.Bg)
+	ColInput = pair(theme.Input, theme.Bg)
+	ColDisabled = pair(theme.Disabled, theme.Bg)
+	ColMatch = pair(theme.Match, theme.Bg)
+	ColCursor = pair(theme.Cursor, theme.Gutter)
+	ColCursorEmpty = pair(blank, theme.Gutter)
+	ColSelected = pair(theme.Selected, theme.Gutter)
+	ColCurrent = pair(theme.Current, theme.DarkBg)
+	ColCurrentMatch = pair(theme.CurrentMatch, theme.DarkBg)
+	ColCurrentCursor = pair(theme.Cursor, theme.DarkBg)
+	ColCurrentCursorEmpty = pair(blank, theme.DarkBg)
+	ColCurrentSelected = pair(theme.Selected, theme.DarkBg)
+	ColCurrentSelectedEmpty = pair(blank, theme.DarkBg)
+	ColSpinner = pair(theme.Spinner, theme.Bg)
+	ColInfo = pair(theme.Info, theme.Bg)
+	ColHeader = pair(theme.Header, theme.Bg)
+	ColBorder = pair(theme.Border, theme.Bg)
+	ColPreview = pair(theme.PreviewFg, theme.PreviewBg)
+	ColPreviewBorder = pair(theme.Border, theme.PreviewBg)
 }

src/update_assets.rb

@@ -1,45 +0,0 @@
-#!/usr/bin/env ruby
-
-# http://www.rubydoc.info/github/rest-client/rest-client/RestClient
-require 'rest_client'
-require 'json'
-
-if ARGV.length < 3
-  puts "usage: #$0 <token> <version> <files...>"
-  exit 1
-end
-
-token, version, *files = ARGV
-base = "https://api.github.com/repos/junegunn/fzf-bin/releases"
-
-# List releases
-rels = JSON.parse(RestClient.get(base, :authorization => "token #{token}"))
-rel = rels.find { |r| r['tag_name'] == version }
-unless rel
-  puts "#{version} not found"
-  exit 1
-end
-
-# List assets
-assets = Hash[rel['assets'].map { |a| a.values_at *%w[name id] }]
-
-files.select { |f| File.exists? f }.map do |file|
-  Thread.new do
-    name = File.basename file
-
-    if asset_id = assets[name]
-      puts "#{name} found. Deleting asset id #{asset_id}."
-      RestClient.delete "#{base}/assets/#{asset_id}",
-        :authorization => "token #{token}"
-    else
-      puts "#{name} not found"
-    end
-
-    puts "Uploading #{name}"
-    RestClient.post(
-      "#{base.sub 'api', 'uploads'}/#{rel['id']}/assets?name=#{name}",
-      File.read(file),
-      :authorization => "token #{token}",
-      :content_type  => "application/octet-stream")
-  end
-end.each(&:join)

src/util/atomicbool.go

@@ -1,32 +1,34 @@
 package util
 
-import "sync"
+import (
+	"sync/atomic"
+)
+
+func convertBoolToInt32(b bool) int32 {
+	if b {
+		return 1
+	}
+	return 0
+}
 
 // AtomicBool is a boxed-class that provides synchronized access to the
 // underlying boolean value
 type AtomicBool struct {
-	mutex sync.Mutex
-	state bool
+	state int32 // "1" is true, "0" is false
 }
 
 // NewAtomicBool returns a new AtomicBool
 func NewAtomicBool(initialState bool) *AtomicBool {
-	return &AtomicBool{
-		mutex: sync.Mutex{},
-		state: initialState}
+	return &AtomicBool{state: convertBoolToInt32(initialState)}
 }
 
 // Get returns the current boolean value synchronously
 func (a *AtomicBool) Get() bool {
-	a.mutex.Lock()
-	defer a.mutex.Unlock()
-	return a.state
+	return atomic.LoadInt32(&a.state) == 1
 }
 
 // Set updates the boolean value synchronously
 func (a *AtomicBool) Set(newState bool) bool {
-	a.mutex.Lock()
-	defer a.mutex.Unlock()
-	a.state = newState
-	return a.state
+	atomic.StoreInt32(&a.state, convertBoolToInt32(newState))
+	return newState
 }

src/util/chars.go

@@ -1,6 +1,7 @@
 package util
 
 import (
+	"fmt"
 	"unicode"
 	"unicode/utf8"
 	"unsafe"
@@ -94,6 +95,11 @@ func (chars *Chars) Length() int {
 	return len(chars.slice)
 }
 
+// String returns the string representation of a Chars object.
+func (chars *Chars) String() string {
+	return fmt.Sprintf("Chars{slice: []byte(%q), inBytes: %v, trimLengthKnown: %v, trimLength: %d, Index: %d}", chars.slice, chars.inBytes, chars.trimLengthKnown, chars.trimLength, chars.Index)
+}
+
 // TrimLength returns the length after trimming leading and trailing whitespaces
 func (chars *Chars) TrimLength() uint16 {
 	if chars.trimLengthKnown {
@@ -124,6 +130,18 @@ func (chars *Chars) TrimLength() uint16 {
 	return chars.trimLength
 }
 
+func (chars *Chars) LeadingWhitespaces() int {
+	whitespaces := 0
+	for i := 0; i < chars.Length(); i++ {
+		char := chars.Get(i)
+		if !unicode.IsSpace(char) {
+			break
+		}
+		whitespaces++
+	}
+	return whitespaces
+}
+
 func (chars *Chars) TrailingWhitespaces() int {
 	whitespaces := 0
 	for i := chars.Length() - 1; i >= 0; i-- {
@@ -136,6 +154,11 @@ func (chars *Chars) TrailingWhitespaces() int {
 	return whitespaces
 }
 
+func (chars *Chars) TrimTrailingWhitespaces() {
+	whitespaces := chars.TrailingWhitespaces()
+	chars.slice = chars.slice[0 : len(chars.slice)-whitespaces]
+}
+
 func (chars *Chars) ToString() string {
 	if runes := chars.optionalRunes(); runes != nil {
 		return string(runes)
@@ -163,5 +186,13 @@ func (chars *Chars) CopyRunes(dest []rune) {
 	for idx, b := range chars.slice[:len(dest)] {
 		dest[idx] = rune(b)
 	}
-	return
+}
+
+func (chars *Chars) Prepend(prefix string) {
+	if runes := chars.optionalRunes(); runes != nil {
+		runes = append([]rune(prefix), runes...)
+		chars.slice = *(*[]byte)(unsafe.Pointer(&runes))
+	} else {
+		chars.slice = append([]byte(prefix), chars.slice...)
+	}
 }

src/util/util.go

@@ -17,11 +17,12 @@ func RuneWidth(r rune, prefixWidth int, tabstop int) int {
 		return tabstop - prefixWidth%tabstop
 	} else if w, found := _runeWidths[r]; found {
 		return w
-	} else {
-		w := Max(runewidth.RuneWidth(r), 1)
-		_runeWidths[r] = w
-		return w
+	} else if r == '\n' || r == '\r' {
+		return 1
 	}
+	w := runewidth.RuneWidth(r)
+	_runeWidths[r] = w
+	return w
 }
 
 // Max returns the largest integer
@@ -111,3 +112,13 @@ func DurWithin(
 func IsTty() bool {
 	return isatty.IsTerminal(os.Stdin.Fd())
 }
+
+// Once returns a function that returns the specified boolean value only once
+func Once(nextResponse bool) func() bool {
+	state := nextResponse
+	return func() bool {
+		prevState := state
+		state = false
+		return prevState
+	}
+}

src/util/util_test.go

@@ -20,3 +20,21 @@ func TestContrain(t *testing.T) {
 		t.Error("Expected", 3)
 	}
 }
+
+func TestOnce(t *testing.T) {
+	o := Once(false)
+	if o() {
+		t.Error("Expected: false")
+	}
+	if o() {
+		t.Error("Expected: false")
+	}
+
+	o = Once(true)
+	if !o() {
+		t.Error("Expected: true")
+	}
+	if o() {
+		t.Error("Expected: false")
+	}
+}

src/util/util_unix.go

@@ -9,17 +9,26 @@ import (
 )
 
 // ExecCommand executes the given command with $SHELL
-func ExecCommand(command string) *exec.Cmd {
+func ExecCommand(command string, setpgid bool) *exec.Cmd {
 	shell := os.Getenv("SHELL")
 	if len(shell) == 0 {
 		shell = "sh"
 	}
-	return ExecCommandWith(shell, command)
+	return ExecCommandWith(shell, command, setpgid)
 }
 
 // ExecCommandWith executes the given command with the specified shell
-func ExecCommandWith(shell string, command string) *exec.Cmd {
-	return exec.Command(shell, "-c", command)
+func ExecCommandWith(shell string, command string, setpgid bool) *exec.Cmd {
+	cmd := exec.Command(shell, "-c", command)
+	if setpgid {
+		cmd.SysProcAttr = &syscall.SysProcAttr{Setpgid: true}
+	}
+	return cmd
+}
+
+// KillCommand kills the process for the given command
+func KillCommand(cmd *exec.Cmd) error {
+	return syscall.Kill(-cmd.Process.Pid, syscall.SIGKILL)
 }
 
 // IsWindows returns true on Windows
@@ -27,7 +36,7 @@ func IsWindows() bool {
 	return false
 }
 
-// SetNonBlock executes syscall.SetNonblock on file descriptor
+// SetNonblock executes syscall.SetNonblock on file descriptor
 func SetNonblock(file *os.File, nonblock bool) {
 	syscall.SetNonblock(int(file.Fd()), nonblock)
 }

src/util/util_windows.go

@@ -10,28 +10,35 @@ import (
 )
 
 // ExecCommand executes the given command with cmd
-func ExecCommand(command string) *exec.Cmd {
-	return ExecCommandWith("cmd", command)
+func ExecCommand(command string, setpgid bool) *exec.Cmd {
+	return ExecCommandWith("cmd", command, setpgid)
 }
 
 // ExecCommandWith executes the given command with cmd. _shell parameter is
 // ignored on Windows.
-func ExecCommandWith(_shell string, command string) *exec.Cmd {
+// FIXME: setpgid is unused. We set it in the Unix implementation so that we
+// can kill preview process with its child processes at once.
+func ExecCommandWith(_shell string, command string, setpgid bool) *exec.Cmd {
 	cmd := exec.Command("cmd")
 	cmd.SysProcAttr = &syscall.SysProcAttr{
 		HideWindow:    false,
-		CmdLine:       fmt.Sprintf(` /s /c "%s"`, command),
+		CmdLine:       fmt.Sprintf(` /v:on/s/c "%s"`, command),
 		CreationFlags: 0,
 	}
 	return cmd
 }
 
+// KillCommand kills the process for the given command
+func KillCommand(cmd *exec.Cmd) error {
+	return cmd.Process.Kill()
+}
+
 // IsWindows returns true on Windows
 func IsWindows() bool {
 	return true
 }
 
-// SetNonBlock executes syscall.SetNonblock on file descriptor
+// SetNonblock executes syscall.SetNonblock on file descriptor
 func SetNonblock(file *os.File, nonblock bool) {
 	syscall.SetNonblock(syscall.Handle(file.Fd()), nonblock)
 }

test/fzf.vader

@@ -8,10 +8,13 @@ Execute (fzf#run with dir option):
   let cwd = getcwd()
   let result = fzf#run({ 'source': 'git ls-files', 'options': '--filter=vdr', 'dir': g:dir })
   AssertEqual ['fzf.vader'], result
+  AssertEqual 0, haslocaldir()
   AssertEqual getcwd(), cwd
 
+  execute 'lcd' fnameescape(cwd)
   let result = sort(fzf#run({ 'source': 'git ls-files', 'options': '--filter e', 'dir': g:dir }))
   AssertEqual ['fzf.vader', 'test_go.rb'], result
+  AssertEqual 1, haslocaldir()
   AssertEqual getcwd(), cwd
 
 Execute (fzf#run with Funcref command):
@@ -56,11 +59,11 @@ Execute (Incomplete fzf#run with dir option and autochdir):
   " No change in working directory even if &acd is set
   AssertEqual cwd, getcwd()
 
-Execute (fzf#run with dir option and autochdir):
+Execute (FIXME: fzf#run with dir option and autochdir):
   set acd
-  let cwd = getcwd()
   call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/tmp', 'options': '-1'})
   " Working directory changed due to &acd
+  AssertEqual '/foobar', expand('%')
   AssertEqual '/', getcwd()
 
 Execute (fzf#run with dir option and autochdir when final cwd is same as dir):

uninstall

@@ -1,12 +1,45 @@
 #!/usr/bin/env bash
 
-confirm() {
-  while [ 1 ]; do
-    read -p "$1" -n 1 -r
-    echo
-    if [[ "$REPLY" =~ ^[Yy] ]]; then
+xdg=0
+prefix='~/.fzf'
+prefix_expand=~/.fzf
+fish_dir=${XDG_CONFIG_HOME:-$HOME/.config}/fish
+
+help() {
+  cat << EOF
+usage: $0 [OPTIONS]
+
+    --help               Show this message
+    --xdg                Remove files generated under \$XDG_CONFIG_HOME/fzf
+EOF
+}
+
+for opt in "$@"; do
+  case $opt in
+    --help)
+      help
+      exit 0
+      ;;
+    --xdg)
+      xdg=1
+      prefix='"${XDG_CONFIG_HOME:-$HOME/.config}"/fzf/fzf'
+      prefix_expand=${XDG_CONFIG_HOME:-$HOME/.config}/fzf/fzf
+      ;;
+    *)
+      echo "unknown option: $opt"
+      help
+      exit 1
+      ;;
+  esac
+done
+
+ask() {
+  while true; do
+    read -p "$1 ([y]/n) " -r
+    REPLY=${REPLY:-"y"}
+    if [[ $REPLY =~ ^[Yy]$ ]]; then
       return 0
-    elif [[ "$REPLY" =~ ^[Nn] ]]; then
+    elif [[ $REPLY =~ ^[Nn]$ ]]; then
       return 1
     fi
   done
@@ -40,7 +73,7 @@ remove_line() {
     content=$(sed 's/^[0-9]*://' <<< "$line")
     match=1
     echo    "  - Line #$line_no: $content"
-    [ "$content" = "$1" ] || confirm "    - Remove (y/n) ? "
+    [ "$content" = "$1" ] || ask "    - Remove?"
     if [ $? -eq 0 ]; then
       awk -v n=$line_no 'NR == n {next} {print}' "$src" > "$src.bak" &&
         mv "$src.bak" "$src" || break
@@ -55,25 +88,30 @@ remove_line() {
 }
 
 for shell in bash zsh; do
-  remove ~/.fzf.${shell}
+  shell_config=${prefix_expand}.${shell}
+  remove "${shell_config}"
   remove_line ~/.${shell}rc \
-    "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" \
-    "source ~/.fzf.${shell}"
+    "[ -f ${prefix}.${shell} ] && source ${prefix}.${shell}" \
+    "source ${prefix}.${shell}"
 done
 
-bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
+bind_file="${fish_dir}/functions/fish_user_key_bindings.fish"
 if [ -f "$bind_file" ]; then
   remove_line "$bind_file" "fzf_key_bindings"
 fi
 
-if [ -d ~/.config/fish/functions ]; then
-  remove ~/.config/fish/functions/fzf.fish
-  remove ~/.config/fish/functions/fzf_key_bindings.fish
+if [ -d "${fish_dir}/functions" ]; then
+  remove "${fish_dir}/functions/fzf.fish"
+  remove "${fish_dir}/functions/fzf_key_bindings.fish"
 
-  if [ "$(ls -A ~/.config/fish/functions)" ]; then
-    echo "Can't delete non-empty directory: \"~/.config/fish/functions\""
+  if [ "$(ls -A "${fish_dir}/functions")" ]; then
+    echo "Can't delete non-empty directory: \"${fish_dir}/functions\""
   else
-    rmdir ~/.config/fish/functions
+    rmdir "${fish_dir}/functions"
   fi
 fi
 
+config_dir=$(dirname "$prefix_expand")
+if [[ "$xdg" = 1 ]] && [[ "$config_dir" = */fzf ]] && [[ -d "$config_dir" ]]; then
+  rmdir "$config_dir"
+fi