0.22.0

This is to allow line numbers in a ctags output (e.g. 123;")

.rubocop.yml

@@ -0,0 +1,24 @@
+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/WordArray:
+  MinSize: 1

.travis.yml

@@ -1,22 +1,28 @@
 language: go
+go:
+  - "1.14"
 env: GO111MODULE=on
 os:
   - linux
   - osx
-dist: bionic # For fish >= 2.3.0 string builtin
+dist: bionic
 addons:
   apt:
     packages:
       - fish
       - zsh
+    sources:
+      sourceline: ppa:fish-shell/release-3
   homebrew:
     packages:
       - fish
       - tmux
     update: true
+install: gem install minitest rubocop rubocop-minitest rubocop-performance
 script:
   - make test
   # LC_ALL=C to avoid escape codes in
   # printf %q $'\355\205\214\354\212\244\355\212\270' on macOS. Bash on
   # macOS is built without HANDLE_MULTIBYTE?
   - make install && ./install --all && LC_ALL=C tmux new-session -d && ruby test/test_go.rb --verbose
+  - rubocop --require rubocop-minitest --require rubocop-performance

CHANGELOG.md

@@ -1,6 +1,49 @@
 CHANGELOG
 =========
 
+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

Makefile

@@ -6,7 +6,7 @@ ROOT_DIR       := $(shell dirname $(MAKEFILE))
 SOURCES        := $(wildcard *.go src/*.go src/*/*.go) $(MAKEFILE)
 
 REVISION       := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES))
-BUILD_FLAGS    := -a -ldflags "-X main.revision=$(REVISION) -w -extldflags=$(LDFLAGS)" -tags "$(TAGS)"
+BUILD_FLAGS    := -a -ldflags "-X main.revision=$(REVISION) -w '-extldflags=$(LDFLAGS)'" -tags "$(TAGS)"
 
 BINARY32       := fzf-$(GOOS)_386
 BINARY64       := fzf-$(GOOS)_amd64

README-VIM.md

@@ -128,7 +128,7 @@ let g:fzf_action = {
 
 " Default fzf layout
 " - down / up / left / right
-let g:fzf_layout = { 'down': '~40%' }
+let g:fzf_layout = { 'down': '40%' }
 
 " You can set up fzf window using a Vim command (Neovim or latest Vim 8 required)
 let g:fzf_layout = { 'window': 'enew' }
@@ -274,6 +274,7 @@ The following table summarizes the available options.
 | `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}`) |
 
@@ -397,13 +398,25 @@ The latest versions of Vim and Neovim include builtin terminal emulator
 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.
+
+```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 the default layout (`{'down': '~40%'}`) on Neovim, you
+For example, if you use the default layout (`{'down': '40%'}`) on Neovim, you
 might want to temporarily disable the statusline for a cleaner look.
 
 ```vim

README.md

@@ -104,16 +104,18 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 
 ### Using Linux package managers
 
-| Distro       | Command                    |
+| Package Manager | Linux Distribution      | Command                            |
-| ---          | ---                        |
+| ---             | ---                     | ---                                |
-| Alpine Linux | `sudo apk add fzf`         |
+| APK             | Alpine Linux            | `sudo apk add fzf`                 |
-| Arch Linux   | `sudo pacman -S fzf`       |
+| APT             | Debian 9+/Ubuntu 19.10+ | `sudo apt-get install fzf`         |
-| Debian       | `sudo apt-get install fzf` |
+| Conda           |                         | `conda install -c conda-forge fzf` |
-| Fedora       | `sudo dnf install fzf`     |
+| DNF             | Fedora                  | `sudo dnf install fzf`             |
-| FreeBSD      | `pkg install fzf`          |
+| Nix             | NixOS, etc.             | `nix-env -iA nixpkgs.fzf`          |
-| NixOS        | `nix-env -iA nixpkgs.fzf`  |
+| Pacman          | Arch Linux              | `sudo pacman -S fzf`               |
-| openSUSE     | `sudo zypper install fzf`  |
+| pkg             | FreeBSD                 | `pkg install fzf`                  |
-| OpenBSD      | `pkg_add fzf`              |
+| pkg_add         | OpenBSD                 | `pkg_add fzf`                      |
+| XBPS            | Void Linux              | `sudo xbps-install -S fzf`         |
+| Zypper          | openSUSE                | `sudo zypper install fzf`          |
 
 Shell extensions (key bindings and fuzzy auto-completion) and Vim/Neovim
 plugin may or may not be enabled by default depending on the package manager.
@@ -528,9 +530,10 @@ See *KEY BINDINGS* section of the man page for details.
 
 ### Preview window
 
-When `--preview` option is set, fzf automatically starts an external process with
+When the `--preview` option is set, fzf automatically starts an external process 
-the current line as the argument and shows the result in the split window. Your
+with the current line as the argument and shows the result in the split window. 
-`$SHELL` is used to execute the command with `$SHELL -c COMMAND`.
+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
@@ -546,13 +549,12 @@ fzf --preview 'head -100 {}'
 ```
 
 Preview window supports ANSI colors, so you can use any program that
-syntax-highlights the content of a file.
+syntax-highlights the content of a file, such as 
-
+[Bat](https://github.com/sharkdp/bat) or
-- Bat: https://github.com/sharkdp/bat
+[Highlight](http://www.andre-simon.de/doku/highlight/en/highlight.php):
-- Highlight: http://www.andre-simon.de/doku/highlight/en/highlight.php
 
 ```bash
-fzf --preview 'bat --style=numbers --color=always {} | head -500'
+fzf --preview 'bat --style=numbers --color=always --line-range :500 {}'
 ```
 
 You can customize the size, position, and border of the preview window using
@@ -581,7 +583,7 @@ not a good idea to add `--preview` option to your `$FZF_DEFAULT_OPTS`**.
 # *********************
 # ** DO NOT DO THIS! **
 # *********************
-export FZF_DEFAULT_OPTS='--preview "bat --style=numbers --color=always {} | head -500"'
+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

bin/fzf-tmux

@@ -77,7 +77,7 @@ while [[ $# -gt 0 ]]; do
       if [[ ${#arg} -gt 2 ]]; then
         size="${arg:2}"
       else
-        if [[ "$1" =~ ^[0-9%,C]+$ ]]; then
+        if [[ "$1" =~ ^[0-9%,]+$ ]] || [[ "$1" =~ ^[A-Z]$ ]]; then
           size="$1"
           shift
         else
@@ -138,9 +138,9 @@ fi
 # --height option is not allowed
 args=("--no-height" "${args[@]}")
 
-# Handle zoomed tmux pane by moving it to a temp window
+# Handle zoomed tmux pane without popup options by moving it to a temp window
-if tmux list-panes -F '#F' | grep -q Z; then
+if [[ ! "$opt" =~ "-K -E" ]] && tmux list-panes -F '#F' | grep -q Z; then
-  zoomed=1
+  zoomed_without_popup=1
   original_window=$(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
@@ -162,8 +162,8 @@ cleanup() {
     eval "tmux ${tmux_win_opts[@]}"
   fi
 
-  # Remove temp window if we were zoomed
+  # Remove temp window if we were zoomed without popup options
-  if [[ -n "$zoomed" ]]; then
+  if [[ -n "$zoomed_without_popup" ]]; then
     tmux display-message -p "#{window_id}" > /dev/null
     tmux swap-pane -t $original_window \; \
       select-window -t $original_window \; \

doc/fzf.txt

@@ -1,12 +1,14 @@
-fzf.txt	fzf	Last change: February 14 2020
+fzf.txt	fzf	Last change: April 4 2020
 FZF - TABLE OF CONTENTS                                            *fzf* *fzf-toc*
 ==============================================================================
 
   FZF Vim integration
+    Installation
     Summary
     :FZF[!]
       Configuration
         Examples
+          Explanation of g:fzf_colors
     fzf#run
     fzf#wrap
     Tips
@@ -19,6 +21,46 @@ FZF VIM INTEGRATION                                        *fzf-vim-integration*
 ==============================================================================
 
 
+INSTALLATION                                                  *fzf-installation*
+==============================================================================
+
+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*
 ==============================================================================
 
@@ -38,12 +80,12 @@ the basic file selector command built on top of them.
    - 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}{1} project.
+   - 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.
 
-                                       {1} https://github.com/junegunn/fzf.vim
+                                       {2} https://github.com/junegunn/fzf.vim
 
 
 :FZF[!]
@@ -144,6 +186,51 @@ Examples~
     let g:fzf_history_dir = '~/.local/share/fzf-history'
 <
 
+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)
+  `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
+  `prompt`               | Prompt before query ( `> ` )
+ ----------------------+------------------------------------------------------
+ - `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
 ==============================================================================
 
@@ -203,6 +290,7 @@ The following table summarizes the available options.
   `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}` )
  ---------------------------+---------------+----------------------------------------------------------------------
@@ -320,6 +408,16 @@ Starting fzf in a popup window~
     "   - '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
+<
 
 Hide statusline~
                                                            *fzf-hide-statusline*

install

@@ -2,7 +2,7 @@
 
 set -u
 
-version=0.21.1
+version=0.22.0
 auto_completion=
 key_bindings=
 update_config=2
@@ -384,7 +384,11 @@ 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

@@ -1,4 +1,4 @@
-$version="0.21.1"
+$version="0.22.0"
 
 if ([Environment]::Is64BitProcess) {
   $binary_arch="amd64"
@@ -57,7 +57,7 @@ function download {
   [Net.ServicePointManager]::SecurityProtocol = [Net.SecurityProtocolType]::Tls12
   (New-Object Net.WebClient).DownloadFile($url, $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath("$temp"))
   if ($?) {
-    (Expand-Archive -Path $temp -DestinationPath .); (Remove-Item $temp)
+    (Microsoft.PowerShell.Archive\Expand-Archive -Path $temp -DestinationPath .); (Remove-Item $temp)
   } else {
     $binary_error="Failed to download with powershell"
   }

man/man1/fzf-tmux.1

@@ -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-tmux 1 "Apr 2020" "fzf 0.21.1" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Aug 2020" "fzf 0.22.0" "fzf-tmux - open fzf in tmux split pane"
 
 .SH NAME
 fzf-tmux - open fzf in tmux split pane

man/man1/fzf.1

@@ -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 "Apr 2020" "fzf 0.21.1" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Aug 2020" "fzf 0.22.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -381,7 +381,7 @@ 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.
 .RE
 .TP
-.BI "--preview-window=" "[POSITION][:SIZE[%]][:noborder][:wrap][:hidden]"
+.BI "--preview-window=" "[POSITION][:SIZE[%]][:noborder][:wrap][:hidden][:+SCROLL[-OFFSET]]"
 Determines 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. Long lines are truncated by default.
@@ -390,6 +390,12 @@ 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.
 
+\fB+SCROLL[-OFFSET]\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 \fB-OFFSET\fR part is
+for adjusting the base offset so that you can see the text above it. It should
+be given as a numeric integer.
+
 .RS
 .B POSITION: (default: right)
     \fBup
@@ -400,8 +406,15 @@ execute the command in the background.
 
 .RS
 e.g.
-     \fBfzf --preview="head {}" --preview-window=up:30%
+     \fB# Non-default scroll window positions and sizes
-     fzf --preview="file {}" --preview-window=down:1\fR
+     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
+     git grep --line-number '' |
+       fzf --delimiter : --preview 'nl {1}' --preview-window +{2}-5\fR
+
 .RE
 .SS Scripting
 .TP
@@ -635,12 +648,23 @@ e.g.
 or any single character
 
 .SS AVAILABLE EVENTS:
-\fIchange\fR (triggered whenever the query string is changed)
+\fIchange\fR
-.br
+.RS
+Triggered whenever the query string is changed
 
-    e.g.
+e.g.
-         \fB# Moves cursor to the top (or bottom depending on --layout) whenever the query is changed
+     \fB# Moves cursor to the top (or bottom depending on --layout) whenever the query is changed
-         fzf --bind change:top\fR
+     fzf --bind change:top\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.
@@ -679,12 +703,14 @@ A key or an event can be bound to one or more of the following actions.
     \fBpage-up\fR                   \fIpgup\fR
     \fBhalf-page-down\fR
     \fBhalf-page-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)
+    \fBrefresh-preview\fR
     \fBreload(...)\fR               (see below for the details)
     \fBreplace-query\fR             (replace query string with the current selection)
     \fBselect-all\fR                (select all matches)
@@ -771,6 +797,24 @@ e.g.
        fzf --bind "change:reload:$RG_PREFIX {q} || true" \\
            --ansi --phony --query "$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

@@ -116,7 +116,7 @@ function! s:fzf_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'
 
@@ -191,21 +191,6 @@ 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
@@ -251,9 +236,13 @@ function! s:common_sink(action, lines) abort
   endif
   try
     let empty = empty(s:fzf_expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
-    let autochdir = &autochdir
+    " Preserve the current working directory in case it's changed during
-    set noautochdir
+    " the execution (e.g. `set autochdir` or `autocmd BufEnter * lcd ...`)
+    let cwd = exists('w:fzf_pushd') ? w:fzf_pushd.dir : expand('%:p:h')
     for item in a:lines
+      if item[0] != '~' && item !~ (s:is_win ? '^[A-Z]:\' : '^/')
+        let item = join([cwd, item], (s:is_win ? '\' : '/'))
+      endif
       if empty
         execute 'e' s:escape(item)
         let empty = 0
@@ -267,7 +256,6 @@ function! s:common_sink(action, lines) abort
     endfor
   catch /^Vim:Interrupt$/
   finally
-    let &autochdir = autochdir
     silent! autocmd! fzf_swap
   endtry
 endfunction
@@ -312,7 +300,7 @@ 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
@@ -384,7 +372,7 @@ function! fzf#run(...) abort
 try
   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
@@ -416,7 +404,7 @@ 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')
@@ -424,7 +412,7 @@ try
   let has_nvim_term = has('nvim-0.2.1') || has('nvim') && !s:is_win
   let use_term = has_nvim_term ||
     \ has_vim8_term && !has('win32unix') && (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)
+  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
@@ -460,19 +448,21 @@ function! s:present(dict, ...)
 endfunction
 
 function! s:fzf_tmux(dict)
-  let size = ''
+  let size = get(a:dict, 'tmux', '')
-  for o in ['up', 'down', 'left', 'right']
+  if empty(size)
-    if s:present(a:dict, o)
+    for o in ['up', 'down', 'left', 'right']
-      let spec = a:dict[o]
+      if s:present(a:dict, o)
-      if (o == 'up' || o == 'down') && spec[0] == '~'
+        let spec = a:dict[o]
-        let size = '-'.o[0].s:calc_size(&lines, spec, a:dict)
+        if (o == 'up' || o == 'down') && spec[0] == '~'
-      else
+          let size = '-'.o[0].s:calc_size(&lines, spec, a:dict)
-        " Legacy boolean option
+        else
-        let size = '-'.o[0].(spec == 1 ? '' : substitute(spec, '^\~', '', ''))
+          " Legacy boolean option
+          let size = '-'.o[0].(spec == 1 ? '' : substitute(spec, '^\~', '', ''))
+        endif
+        break
       endif
-      break
+    endfor
-    endif
+  endif
-  endfor
   return printf('LINES=%d COLUMNS=%d %s %s %s --',
     \ &lines, &columns, fzf#shellescape(s:fzf_tmux), size, (has_key(a:dict, 'source') ? '' : '-'))
 endfunction
@@ -527,7 +517,7 @@ function! s:dopopd()
   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
+  unlet! w:fzf_pushd
 endfunction
 
 function! s:xterm_launcher()
@@ -642,6 +632,9 @@ function! s:calc_size(max, val, dict)
   endif
 
   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')
@@ -661,13 +654,15 @@ 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')
       if type(a:dict.window) == type({})
-        if !has('nvim') && !has('patch-8.2.191')
+        if !(has('nvim') ? has('nvim-0.4') : has('popupwin') && has('patch-8.2.191'))
-          throw 'Vim 8.2.191 or later is required for pop-up window'
+          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
@@ -685,20 +680,22 @@ 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
 
 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,
@@ -762,11 +759,17 @@ function! s:execute_term(dict, command, temps) abort
     if has('nvim')
       call termopen(command, fzf)
     else
-      if !len(&bufhidden)
+      let term_opts = {'exit_cb': function(fzf.on_exit)}
-        setlocal bufhidden=hide
+      if is_popup
+        let term_opts.hidden = 1
+      else
+        let term_opts.curwin = 1
       endif
-      let fzf.buf = term_start([&shell, &shellcmdflag, command], {'curwin': 1, 'exit_cb': function(fzf.on_exit)})
+      let fzf.buf = term_start([&shell, &shellcmdflag, command], term_opts)
-      if !has('patch-8.0.1261') && !has('nvim') && !s:is_win
+      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
@@ -837,23 +840,22 @@ if has('nvim')
 else
   function! s:create_popup(hl, opts) abort
     let is_frame = has_key(a:opts, 'border')
-    let buf = is_frame ? '' : term_start(&shell, #{hidden: 1, term_finish: 'close'})
+    let s:popup_create = {buf -> popup_create(buf, #{
-    let id = popup_create(buf, #{
       \ line: a:opts.row,
       \ col: a:opts.col,
       \ minwidth: a:opts.width,
       \ minheight: a:opts.height,
       \ zindex: 50 - is_frame,
-    \ })
+    \ })}
-
     if is_frame
+      let id = s:popup_create('')
       call setwinvar(id, '&wincolor', a:hl)
       call setbufline(winbufnr(id), 1, a:opts.border)
       execute 'autocmd BufWipeout * ++once call popup_close('..id..')'
+      return winbufnr(id)
     else
-      execute 'autocmd BufWipeout * ++once call term_sendkeys('..buf..', "exit\<CR>")'
+      autocmd TerminalOpen * ++once call s:popup_create(str2nr(expand('<abuf>')))
     endif
-    return winbufnr(id)
   endfunction
 endif
 

shell/completion.bash

@@ -249,17 +249,25 @@ _fzf_dir_completion() {
 }
 
 _fzf_complete_kill() {
-  [ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
+  local trigger=${FZF_COMPLETION_TRIGGER-'**'}
-
+  local cur="${COMP_WORDS[COMP_CWORD]}"
-  local selected
+  if [[ -z "$cur" ]]; then
-  selected=$(command ps -ef | sed 1d | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-50%} --min-height 15 --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS --preview 'echo {}' --preview-window down:3:wrap" __fzf_comprun "kill" -m | awk '{print $2}' | tr '\n' ' ')
+    COMP_WORDS[$COMP_CWORD]=$trigger
-  selected=${selected% }
+  elif [[ "$cur" != *"$trigger" ]]; then
-  printf '\e[5n'
+    return 1
-
-  if [ -n "$selected" ]; then
-    COMPREPLY=( "$selected" )
-    return 0
   fi
+
+  _fzf_proc_completion "$@"
+}
+
+_fzf_proc_completion() {
+  _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
+    command ps -ef | sed 1d
+  )
+}
+
+_fzf_proc_completion_post() {
+  awk '{print $2}'
 }
 
 _fzf_host_completion() {
@@ -296,11 +304,10 @@ a_cmds="
   find git grep gunzip gzip hg jar
   ln ls mv open rm rsync scp
   svn tar unzip zip"
-x_cmds="kill"
 
 # Preserve existing completion
 eval "$(complete |
-  sed -E '/-F/!d; / _fzf/d; '"/ ($(echo $d_cmds $a_cmds $x_cmds | sed 's/ /|/g; s/+/\\+/g'))$/"'!d' |
+  sed -E '/-F/!d; / _fzf/d; '"/ ($(echo $d_cmds $a_cmds | sed 's/ /|/g; s/+/\\+/g'))$/"'!d' |
   __fzf_orig_completion_filter)"
 
 if type _completion_loader > /dev/null 2>&1; then
@@ -332,17 +339,17 @@ for cmd in $d_cmds; do
   __fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
 done
 
-# Kill completion
+# Kill completion (supports empty completion trigger)
 complete -F _fzf_complete_kill -o default -o bashdefault kill
 
-unset cmd d_cmds a_cmds x_cmds
+unset cmd d_cmds a_cmds
 
 _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 COMMANDS..."
+    echo "usage: ${FUNCNAME[0]} path|dir|var|alias|host|proc COMMANDS..."
     return 1
   fi
   shift

shell/completion.zsh

@@ -117,6 +117,7 @@ __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
@@ -249,6 +250,16 @@ _fzf_complete_unalias() {
   )
 }
 
+_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 $2}'
+}
+
 fzf-completion() {
   local tokens cmd prefix trigger tail matches lbuf d_cmds
   setopt localoptions noshwordsplit noksh_arrays noposixbuiltins
@@ -273,20 +284,21 @@ fzf-completion() {
     tokens=(${tokens[0,-2]})
   fi
 
+  lbuf=$LBUFFER
   tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
   # Kill completion (do not require trigger sequence)
-  if [ $cmd = kill -a ${LBUFFER[-1]} = ' ' ]; then
+  if [ "$cmd" = kill -a ${LBUFFER[-1]} = ' ' ]; then
-    matches=$(command ps -ef | sed 1d | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-50%} --min-height 15 --reverse $FZF_DEFAULT_OPTS $FZF_COMPLETION_OPTS --preview 'echo {}' --preview-window down:3:wrap" __fzf_comprun "$cmd" -m | awk '{print $2}' | tr '\n' ' ')
+    tail=$trigger
-    if [ -n "$matches" ]; then
+    tokens+=$trigger
-      LBUFFER="$LBUFFER$matches"
+    lbuf="$lbuf$trigger"
-    fi
+  fi
-    zle reset-prompt
+
   # 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_${cmd} > /dev/null"; then
       prefix="$prefix" eval _fzf_complete_${cmd} ${(q)lbuf}

shell/key-bindings.zsh

@@ -100,7 +100,7 @@ bindkey '\ec' fzf-cd-widget
 fzf-history-widget() {
   local selected num
   setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2> /dev/null
-  selected=( $(fc -rl 1 | perl -ne 'print if !$seen{($_ =~ s/^\s*[0-9]+\s+//r)}++' |
+  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 $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
   local ret=$?
   if [ -n "$selected" ]; then

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/constants.go

@@ -10,7 +10,7 @@ import (
 
 const (
 	// Current version
-	version = "0.21.1"
+	version = "0.22.0"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond

src/options.go

@@ -80,7 +80,7 @@ const usage = `usage: fzf [options]
   Preview
     --preview=COMMAND     Command to preview highlighted line ({})
     --preview-window=OPT  Preview window layout (default: right:50%)
-                          [up|down|left|right][:SIZE[%]][:wrap][:hidden]
+                          [up|down|left|right][:SIZE[%]][:wrap][:hidden][:+SCROLL[-OFFSET]]
 
   Scripting
     -q, --query=STR       Start the finder with the given query
@@ -159,6 +159,7 @@ type previewOpts struct {
 	command  string
 	position windowPosition
 	size     sizeSpec
+	scroll   string
 	hidden   bool
 	wrap     bool
 	border   bool
@@ -260,7 +261,7 @@ func defaultOptions() *Options {
 		ToggleSort:  false,
 		Expect:      make(map[int]string),
 		Keymap:      make(map[int][]action),
-		Preview:     previewOpts{"", posRight, sizeSpec{50, true}, false, false, true},
+		Preview:     previewOpts{"", posRight, sizeSpec{50, true}, "", false, false, true},
 		PrintQuery:  false,
 		ReadZero:    false,
 		Printer:     func(str string) { fmt.Println(str) },
@@ -464,6 +465,8 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = tui.CtrlRightBracket
 		case "change":
 			chord = tui.Change
+		case "backward-eof":
+			chord = tui.BackwardEOF
 		case "alt-enter", "alt-return":
 			chord = tui.CtrlAltM
 		case "alt-space":
@@ -682,7 +685,7 @@ func init() {
 	// Backreferences are not supported.
 	// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
 	executeRegexp = regexp.MustCompile(
-		`(?si)[:+](execute(?:-multi|-silent)?|reload):.+|[:+](execute(?:-multi|-silent)?|reload)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
+		`(?si)[:+](execute(?:-multi|-silent)?|reload|preview):.+|[:+](execute(?:-multi|-silent)?|reload|preview)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
 }
 
 func parseKeymap(keymap map[int][]action, str string) {
@@ -694,6 +697,8 @@ func parseKeymap(keymap map[int][]action, str string) {
 		prefix := symbol + "execute"
 		if strings.HasPrefix(src[1:], "reload") {
 			prefix = symbol + "reload"
+		} else if strings.HasPrefix(src[1:], "preview") {
+			prefix = symbol + "preview"
 		} else if src[len(prefix)] == '-' {
 			c := src[len(prefix)+1]
 			if c == 's' || c == 'S' {
@@ -754,6 +759,8 @@ func parseKeymap(keymap map[int][]action, str string) {
 				appendAction(actAcceptNonEmpty)
 			case "print-query":
 				appendAction(actPrintQuery)
+			case "refresh-preview":
+				appendAction(actRefreshPreview)
 			case "replace-query":
 				appendAction(actReplaceQuery)
 			case "backward-char":
@@ -859,6 +866,8 @@ func parseKeymap(keymap map[int][]action, str string) {
 					switch t {
 					case actReload:
 						offset = len("reload")
+					case actPreview:
+						offset = len("preview")
 					case actExecuteSilent:
 						offset = len("execute-silent")
 					case actExecuteMulti:
@@ -896,6 +905,8 @@ func isExecuteAction(str string) actionType {
 	switch prefix {
 	case "reload":
 		return actReload
+	case "preview":
+		return actPreview
 	case "execute":
 		return actExecute
 	case "execute-silent":
@@ -984,6 +995,7 @@ func parsePreviewWindow(opts *previewOpts, input string) {
 
 	tokens := strings.Split(input, ":")
 	sizeRegex := regexp.MustCompile("^[0-9]+%?$")
+	offsetRegex := regexp.MustCompile("^\\+([0-9]+|{-?[0-9]+})(-[0-9]+)?$")
 	for _, token := range tokens {
 		switch token {
 		case "":
@@ -1006,8 +1018,10 @@ func parsePreviewWindow(opts *previewOpts, input string) {
 		default:
 			if sizeRegex.MatchString(token) {
 				opts.size = parseSize(token, 99, "window size")
+			} else if offsetRegex.MatchString(token) {
+				opts.scroll = token[1:]
 			} else {
-				errorExit("invalid preview window layout: " + input)
+				errorExit("invalid preview window option: " + token)
 			}
 		}
 	}
@@ -1260,7 +1274,7 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Preview.command = ""
 		case "--preview-window":
 			parsePreviewWindow(&opts.Preview,
-				nextString(allArgs, &i, "preview window layout required: [up|down|left|right][:SIZE[%]][:noborder][:wrap][:hidden]"))
+				nextString(allArgs, &i, "preview window layout required: [up|down|left|right][:SIZE[%]][:noborder][:wrap][:hidden][:+SCROLL[-OFFSET]]"))
 		case "--height":
 			opts.Height = parseHeight(nextString(allArgs, &i, "height required: HEIGHT[%]"))
 		case "--min-height":

src/pattern.go

@@ -33,6 +33,7 @@ type term struct {
 	inv           bool
 	text          []rune
 	caseSensitive bool
+	normalize     bool
 }
 
 // String returns the string representation of a term.
@@ -128,6 +129,8 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 		}
 	} else {
 		lowerString := strings.ToLower(asString)
+		normalize = normalize &&
+			lowerString == string(algo.NormalizeRunes([]rune(lowerString)))
 		caseSensitive = caseMode == CaseRespect ||
 			caseMode == CaseSmart && lowerString != asString
 		if !caseSensitive {
@@ -173,6 +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
 		}
@@ -222,14 +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
 		}
 	}
@@ -360,7 +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/terminal.go

@@ -23,12 +23,14 @@ import (
 // import "github.com/pkg/profile"
 
 var placeholder *regexp.Regexp
+var numericPrefix *regexp.Regexp
 var activeTempFiles []string
 
 const ellipsis string = ".."
 
 func init() {
 	placeholder = regexp.MustCompile(`\\?(?:{[+sf]*[0-9,-.]*}|{q}|{\+?f?nf?})`)
+	numericPrefix = regexp.MustCompile(`^[[:punct:]]*([0-9]+)`)
 	activeTempFiles = []string{}
 }
 
@@ -64,7 +66,7 @@ type Terminal struct {
 	initDelay    time.Duration
 	infoStyle    infoStyle
 	spinner      []string
-	prompt       string
+	prompt       func()
 	promptLen    int
 	pointer      string
 	pointerLen   int
@@ -224,10 +226,12 @@ const (
 	actJump
 	actJumpAccept
 	actPrintQuery
+	actRefreshPreview
 	actReplaceQuery
 	actToggleSort
 	actTogglePreview
 	actTogglePreviewWrap
+	actPreview
 	actPreviewUp
 	actPreviewDown
 	actPreviewPageUp
@@ -255,6 +259,16 @@ type searchRequest struct {
 	command *string
 }
 
+type previewRequest struct {
+	template string
+	list     []*Item
+}
+
+type previewResult struct {
+	content string
+	offset  int
+}
+
 func toActions(types ...actionType) []action {
 	actions := make([]action, len(types))
 	for idx, t := range types {
@@ -326,6 +340,17 @@ func trimQuery(query string) []rune {
 	return []rune(strings.Replace(query, "\t", " ", -1))
 }
 
+func hasPreviewAction(opts *Options) bool {
+	for _, actions := range opts.Keymap {
+		for _, action := range actions {
+			if action.t == actPreview {
+				return true
+			}
+		}
+	}
+	return false
+}
+
 // NewTerminal returns new Terminal object
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	input := trimQuery(opts.Query)
@@ -343,7 +368,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		delay = initialDelay
 	}
 	var previewBox *util.EventBox
-	if len(opts.Preview.command) > 0 {
+	if len(opts.Preview.command) > 0 || hasPreviewAction(opts) {
 		previewBox = util.NewEventBox()
 	}
 	strongAttr := tui.Bold
@@ -382,8 +407,8 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		}
 		renderer = tui.NewLightRenderer(opts.Theme, opts.Black, opts.Mouse, opts.Tabstop, opts.ClearOnExit, false, maxHeightFunc)
 	}
-	wordRubout := "[^[:alnum:]][[:alnum:]]"
+	wordRubout := "[^\\pL\\pN][\\pL\\pN]"
-	wordNext := "[[:alnum:]][^[:alnum:]]|(.$)"
+	wordNext := "[\\pL\\pN][^\\pL\\pN]|(.$)"
 	if opts.FileWord {
 		sep := regexp.QuoteMeta(string(os.PathSeparator))
 		wordRubout = fmt.Sprintf("%s[^%s]", sep, sep)
@@ -451,7 +476,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		killChan:    make(chan int),
 		tui:         renderer,
 		initFunc:    func() { renderer.Init() }}
-	t.prompt, t.promptLen = t.processTabs([]rune(opts.Prompt), 0)
+	t.prompt, t.promptLen = t.parsePrompt(opts.Prompt)
 	t.pointer, t.pointerLen = t.processTabs([]rune(opts.Pointer), 0)
 	t.marker, t.markerLen = t.processTabs([]rune(opts.Marker), 0)
 	// Pre-calculated empty pointer and marker signs
@@ -461,6 +486,19 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	return &t
 }
 
+func (t *Terminal) parsePrompt(prompt string) (func(), int) {
+	var state *ansiState
+	trimmed, colors, _ := extractColor(prompt, state, nil)
+	item := &Item{text: util.ToChars([]byte(trimmed)), colors: colors}
+	output := func() {
+		t.printHighlighted(
+			Result{item: item}, t.strong, tui.ColPrompt, tui.ColPrompt, false, false)
+	}
+	_, promptLen := t.processTabs([]rune(trimmed), 0)
+
+	return output, promptLen
+}
+
 func (t *Terminal) noInfoLine() bool {
 	return t.infoStyle != infoDefault
 }
@@ -762,7 +800,7 @@ func (t *Terminal) placeCursor() {
 
 func (t *Terminal) printPrompt() {
 	t.move(0, 0, true)
-	t.window.CPrint(tui.ColPrompt, t.strong, t.prompt)
+	t.prompt()
 
 	before, after := t.updatePromptOffset()
 	t.window.CPrint(tui.ColNormal, t.strong, string(before))
@@ -1196,7 +1234,8 @@ func findLastMatch(pattern string, str string) int {
 	if locs == nil {
 		return -1
 	}
-	return locs[len(locs)-1][0]
+	prefix := []rune(str[:locs[len(locs)-1][0]])
+	return len(prefix)
 }
 
 func findFirstMatch(pattern string, str string) int {
@@ -1208,7 +1247,8 @@ func findFirstMatch(pattern string, str string) int {
 	if loc == nil {
 		return -1
 	}
-	return loc[0]
+	prefix := []rune(str[:loc[0]])
+	return len(prefix)
 }
 
 func copySlice(slice []rune) []rune {
@@ -1316,6 +1356,43 @@ func cleanTemporaryFiles() {
 	activeTempFiles = []string{}
 }
 
+func (t *Terminal) replacePlaceholder(template string, forcePlus bool, input string, list []*Item) string {
+	return replacePlaceholder(
+		template, t.ansi, t.delimiter, t.printsep, forcePlus, input, list)
+}
+
+// Ascii to positive integer
+func atopi(s string) int {
+	matches := numericPrefix.FindStringSubmatch(s)
+	if len(matches) < 2 {
+		return 0
+	}
+	n, e := strconv.Atoi(matches[1])
+	if e != nil || n < 1 {
+		return 0
+	}
+	return n
+}
+
+func (t *Terminal) evaluateScrollOffset(list []*Item) int {
+	offsetExpr := t.replacePlaceholder(t.preview.scroll, false, "", list)
+	nums := strings.Split(offsetExpr, "-")
+	switch len(nums) {
+	case 0:
+		return 0
+	case 1, 2:
+		base := atopi(nums[0])
+		if base == 0 {
+			return 0
+		} else if len(nums) == 1 {
+			return base - 1
+		}
+		return base - atopi(nums[1]) - 1
+	default:
+		return 0
+	}
+}
+
 func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, printsep string, forcePlus bool, query string, allItems []*Item) string {
 	current := allItems[:1]
 	selected := allItems[1:]
@@ -1414,7 +1491,7 @@ func (t *Terminal) executeCommand(template string, forcePlus bool, background bo
 	if !valid {
 		return
 	}
-	command := replacePlaceholder(template, t.ansi, t.delimiter, t.printsep, forcePlus, string(t.input), list)
+	command := t.replacePlaceholder(template, forcePlus, string(t.input), list)
 	cmd := util.ExecCommand(command, false)
 	if !background {
 		cmd.Stdin = os.Stdin
@@ -1422,13 +1499,13 @@ func (t *Terminal) executeCommand(template string, forcePlus bool, background bo
 		cmd.Stderr = os.Stderr
 		t.tui.Pause(true)
 		cmd.Run()
-		t.tui.Resume(true)
+		t.tui.Resume(true, false)
 		t.redraw()
 		t.refresh()
 	} else {
 		t.tui.Pause(false)
 		cmd.Run()
-		t.tui.Resume(false)
+		t.tui.Resume(false, false)
 	}
 	cleanTemporaryFiles()
 }
@@ -1583,20 +1660,23 @@ func (t *Terminal) Loop() {
 	if t.hasPreviewer() {
 		go func() {
 			for {
-				var request []*Item
+				var items []*Item
+				var commandTemplate string
 				t.previewBox.Wait(func(events *util.Events) {
 					for req, value := range *events {
 						switch req {
 						case reqPreviewEnqueue:
-							request = value.([]*Item)
+							request := value.(previewRequest)
+							commandTemplate = request.template
+							items = request.list
 						}
 					}
 					events.Clear()
 				})
 				// We don't display preview window if no match
-				if request[0] != nil {
+				if items[0] != nil {
-					command := replacePlaceholder(t.preview.command,
+					command := t.replacePlaceholder(commandTemplate, false, string(t.Input()), items)
-						t.ansi, t.delimiter, t.printsep, false, string(t.Input()), request)
+					offset := t.evaluateScrollOffset(items)
 					cmd := util.ExecCommand(command, true)
 					if t.pwindow != nil {
 						env := os.Environ()
@@ -1639,11 +1719,11 @@ func (t *Terminal) Loop() {
 					cmd.Wait()
 					finishChan <- true
 					if out.Len() > 0 || !<-updateChan {
-						t.reqBox.Set(reqPreviewDisplay, out.String())
+						t.reqBox.Set(reqPreviewDisplay, previewResult{out.String(), offset})
 					}
 					cleanTemporaryFiles()
 				} else {
-					t.reqBox.Set(reqPreviewDisplay, "")
+					t.reqBox.Set(reqPreviewDisplay, previewResult{"", 0})
 				}
 			}
 		}()
@@ -1659,6 +1739,14 @@ func (t *Terminal) Loop() {
 		t.killPreview(code)
 	}
 
+	refreshPreview := func(command string) {
+		if len(command) > 0 && t.isPreviewEnabled() {
+			_, list := t.buildPlusList(command, false)
+			t.cancelPreview()
+			t.previewBox.Set(reqPreviewEnqueue, previewRequest{command, list})
+		}
+	}
+
 	go func() {
 		var focusedIndex int32 = minItem.Index()
 		var version int64 = -1
@@ -1685,11 +1773,7 @@ func (t *Terminal) Loop() {
 						if focusedIndex != currentIndex || version != t.version {
 							version = t.version
 							focusedIndex = currentIndex
-							if t.isPreviewEnabled() {
+							refreshPreview(t.preview.command)
-								_, list := t.buildPlusList(t.preview.command, false)
-								t.cancelPreview()
-								t.previewBox.Set(reqPreviewEnqueue, list)
-							}
 						}
 					case reqJump:
 						if t.merger.Length() == 0 {
@@ -1701,7 +1785,7 @@ func (t *Terminal) Loop() {
 					case reqRefresh:
 						t.suppress = false
 					case reqReinit:
-						t.tui.Resume(t.fullscreen)
+						t.tui.Resume(t.fullscreen, true)
 						t.redraw()
 					case reqRedraw:
 						t.redraw()
@@ -1713,9 +1797,10 @@ func (t *Terminal) Loop() {
 							return exitNoMatch
 						})
 					case reqPreviewDisplay:
-						t.previewer.text = value.(string)
+						result := value.(previewResult)
+						t.previewer.text = result.content
 						t.previewer.lines = strings.Count(t.previewer.text, "\n")
-						t.previewer.offset = 0
+						t.previewer.offset = util.Constrain(result.offset, 0, t.previewer.lines-1)
 						t.printPreview()
 					case reqPreviewRefresh:
 						t.printPreview()
@@ -1738,6 +1823,7 @@ func (t *Terminal) Loop() {
 	for looping {
 		var newCommand *string
 		changed := false
+		beof := false
 		queryChanged := false
 
 		event := t.tui.GetChar()
@@ -1754,6 +1840,14 @@ func (t *Terminal) Loop() {
 				}
 			}
 		}
+		togglePreview := func(enabled bool) {
+			if t.previewer.enabled != enabled {
+				t.previewer.enabled = enabled
+				t.tui.Clear()
+				t.resizeWindows()
+				req(reqPrompt, reqList, reqInfo, reqHeader)
+			}
+		}
 		toggle := func() bool {
 			if t.cy < t.merger.Length() && t.toggleItem(t.merger.Get(t.cy).item) {
 				req(reqInfo)
@@ -1802,17 +1896,15 @@ func (t *Terminal) Loop() {
 				return false
 			case actTogglePreview:
 				if t.hasPreviewer() {
-					t.previewer.enabled = !t.previewer.enabled
+					togglePreview(!t.previewer.enabled)
-					t.tui.Clear()
-					t.resizeWindows()
 					if t.previewer.enabled {
 						valid, list := t.buildPlusList(t.preview.command, false)
 						if valid {
 							t.cancelPreview()
-							t.previewBox.Set(reqPreviewEnqueue, list)
+							t.previewBox.Set(reqPreviewEnqueue,
+								previewRequest{t.preview.command, list})
 						}
 					}
-					req(reqPrompt, reqList, reqInfo, reqHeader)
 				}
 			case actTogglePreviewWrap:
 				if t.hasPreviewWindow() {
@@ -1846,6 +1938,11 @@ func (t *Terminal) Loop() {
 				}
 			case actPrintQuery:
 				req(reqPrintQuery)
+			case actPreview:
+				togglePreview(true)
+				refreshPreview(a.a)
+			case actRefreshPreview:
+				refreshPreview(t.preview.command)
 			case actReplaceQuery:
 				if t.cy >= 0 && t.cy < t.merger.Length() {
 					t.input = t.merger.Get(t.cy).item.text.ToRunes()
@@ -1881,6 +1978,7 @@ func (t *Terminal) Loop() {
 					t.cx++
 				}
 			case actBackwardDeleteChar:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.input = append(t.input[:t.cx-1], t.input[t.cx:]...)
 					t.cx--
@@ -1973,16 +2071,19 @@ func (t *Terminal) Loop() {
 				t.vset(0)
 				req(reqList)
 			case actUnixLineDiscard:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.yanked = copySlice(t.input[:t.cx])
 					t.input = t.input[t.cx:]
 					t.cx = 0
 				}
 			case actUnixWordRubout:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.rubout("\\s\\S")
 				}
 			case actBackwardKillWord:
+				beof = len(t.input) == 0
 				if t.cx > 0 {
 					t.rubout(t.wordRubout)
 				}
@@ -2118,8 +2219,7 @@ func (t *Terminal) Loop() {
 					valid = !slot || query
 				}
 				if valid {
-					command := replacePlaceholder(a.a,
+					command := t.replacePlaceholder(a.a, false, string(t.input), list)
-						t.ansi, t.delimiter, t.printsep, false, string(t.input), list)
 					newCommand = &command
 				}
 			}
@@ -2145,6 +2245,11 @@ func (t *Terminal) Loop() {
 					continue
 				}
 			}
+			if onEOFs, prs := t.keymap[tui.BackwardEOF]; beof && prs {
+				if !doActions(onEOFs, tui.BackwardEOF) {
+					continue
+				}
+			}
 		} else {
 			if mapkey == tui.Rune {
 				if idx := strings.IndexRune(t.jumpLabels, event.Char); idx >= 0 && idx < t.maxItems() && idx < t.merger.Length() {

src/tui/dummy.go

@@ -25,12 +25,12 @@ const (
 	Reverse          = Attr(1 << 6)
 )
 
-func (r *FullscreenRenderer) Init()       {}
+func (r *FullscreenRenderer) Init()             {}
-func (r *FullscreenRenderer) Pause(bool)  {}
+func (r *FullscreenRenderer) Pause(bool)        {}
-func (r *FullscreenRenderer) Resume(bool) {}
+func (r *FullscreenRenderer) Resume(bool, bool) {}
-func (r *FullscreenRenderer) Clear()      {}
+func (r *FullscreenRenderer) Clear()            {}
-func (r *FullscreenRenderer) Refresh()    {}
+func (r *FullscreenRenderer) Refresh()          {}
-func (r *FullscreenRenderer) Close()      {}
+func (r *FullscreenRenderer) Close()            {}
 
 func (r *FullscreenRenderer) DoesAutoWrap() bool { return false }
 func (r *FullscreenRenderer) GetChar() Event     { return Event{} }

src/tui/light.go

@@ -28,6 +28,7 @@ const (
 const consoleDevice string = "/dev/tty"
 
 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)
@@ -333,6 +334,13 @@ 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}
@@ -345,81 +353,81 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 	switch r.buffer[1] {
 	case ESC:
 		return Event{ESC, 0, nil}
-	case 32:
+	case ' ':
 		return Event{AltSpace, 0, nil}
-	case 47:
+	case '/':
 		return Event{AltSlash, 0, nil}
-	case 98:
+	case 'b':
 		return Event{AltB, 0, nil}
-	case 100:
+	case 'd':
 		return Event{AltD, 0, nil}
-	case 102:
+	case 'f':
 		return Event{AltF, 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:
+			case '2':
-				if r.buffer[3] == 126 {
+				if r.buffer[3] == '~' {
 					return Event{Insert, 0, nil}
 				}
-				if len(r.buffer) > 4 && r.buffer[4] == 126 {
+				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}
 					}
 				}
@@ -431,37 +439,37 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 					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 49, 50, 51, 52, 53, 55, 56, 57:
+				case '1', '2', '3', '4', '5', '7', '8', '9':
-					if len(r.buffer) == 5 && r.buffer[4] == 126 {
+					if len(r.buffer) == 5 && r.buffer[4] == '~' {
 						*sz = 5
 						switch r.buffer[3] {
-						case 49:
+						case '1':
 							return Event{F1, 0, nil}
-						case 50:
+						case '2':
 							return Event{F2, 0, nil}
-						case 51:
+						case '3':
 							return Event{F3, 0, nil}
-						case 52:
+						case '4':
 							return Event{F4, 0, nil}
-						case 53:
+						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}
 						}
 					}
@@ -561,7 +569,7 @@ func (r *LightRenderer) Pause(clear bool) {
 	}
 }
 
-func (r *LightRenderer) Resume(clear bool) {
+func (r *LightRenderer) Resume(clear bool, sigcont bool) {
 	r.setupTerminal()
 	if clear {
 		if r.fullscreen {
@@ -570,10 +578,10 @@ func (r *LightRenderer) Resume(clear bool) {
 			r.rmcup()
 		}
 		r.flush()
-	} else if !r.fullscreen && r.mouse {
+	} else if sigcont && !r.fullscreen && r.mouse {
-		// NOTE: Resume(false) is only called on SIGCONT after SIGSTOP.
+		// NOTE: SIGCONT (Coming back from CTRL-Z):
-		// And It's highly likely that the offset we obtained at the beginning will
+		// It's highly likely that the offset we obtained at the beginning is
-		// no longer be correct, so we simply disable mouse input.
+		// no longer correct, so we simply disable mouse input.
 		r.csi("?1000l")
 		r.mouse = false
 	}

src/tui/tcell.go

@@ -394,7 +394,7 @@ func (r *FullscreenRenderer) Pause(clear bool) {
 	}
 }
 
-func (r *FullscreenRenderer) Resume(clear bool) {
+func (r *FullscreenRenderer) Resume(clear bool, sigcont bool) {
 	if clear {
 		r.initScreen()
 	}

src/tui/tui.go

@@ -87,6 +87,7 @@ const (
 	F12
 
 	Change
+	BackwardEOF
 
 	AltSpace
 	AltSlash
@@ -275,7 +276,7 @@ func MakeTransparentBorder() BorderStyle {
 type Renderer interface {
 	Init()
 	Pause(clear bool)
-	Resume(clear bool)
+	Resume(clear bool, sigcont bool)
 	Clear()
 	RefreshWindows(windows []Window)
 	Refresh()

src/update_assets.rb

@@ -1,19 +1,20 @@
 #!/usr/bin/env ruby
+# frozen_string_literal: true
 
 # http://www.rubydoc.info/github/rest-client/rest-client/RestClient
 require 'rest_client'
 require 'json'
 
 if ARGV.length < 3
-  puts "usage: #$0 <token> <version> <files...>"
+  puts "usage: #{$PROGRAM_NAME} <token> <version> <files...>"
   exit 1
 end
 
 token, version, *files = ARGV
-base = "https://api.github.com/repos/junegunn/fzf-bin/releases"
+base = 'https://api.github.com/repos/junegunn/fzf-bin/releases'
 
 # List releases
-rels = JSON.parse(RestClient.get(base, :authorization => "token #{token}"))
+rels = JSON.parse(RestClient.get(base, authorization: "token #{token}"))
 rel = rels.find { |r| r['tag_name'] == version }
 unless rel
   puts "#{version} not found"
@@ -21,25 +22,26 @@ unless rel
 end
 
 # List assets
-assets = Hash[rel['assets'].map { |a| a.values_at *%w[name id] }]
+assets = Hash[rel['assets'].map { |a| a.values_at('name', 'id') }]
 
-files.select { |f| File.exists? f }.map do |file|
+files.select { |f| File.exist?(f) }.map do |file|
   Thread.new do
-    name = File.basename file
+    name = File.basename(file)
 
-    if asset_id = assets[name]
+    if asset_id = assets[name] # rubocop:todo Lint/AssignmentInCondition
       puts "#{name} found. Deleting asset id #{asset_id}."
-      RestClient.delete "#{base}/assets/#{asset_id}",
+      RestClient.delete("#{base}/assets/#{asset_id}",
-        :authorization => "token #{token}"
+                        authorization: "token #{token}")
     else
       puts "#{name} not found"
     end
 
     puts "Uploading #{name}"
     RestClient.post(
-      "#{base.sub 'api', 'uploads'}/#{rel['id']}/assets?name=#{name}",
+      "#{base.sub('api', 'uploads')}/#{rel['id']}/assets?name=#{name}",
       File.read(file),
-      :authorization => "token #{token}",
+      authorization: "token #{token}",
-      :content_type  => "application/octet-stream")
+      content_type: 'application/octet-stream'
+    )
   end
 end.each(&:join)