0.17.4

- Update preview window even if there is no match for the query string
  if any of the placeholder expressions evaluates to a non-empty string.
- Also, if the command template contains {q}, preview window will be
  updated if the query string changes even though the focus remains on
  the same item.

An example:

    git log --oneline --color=always |
       fzf --reverse --ansi --preview \
       '[ -n {1} ] && git show --color=always {1} || git show --color=always {q}'

Close #1307

.github/ISSUE_TEMPLATE.md

@@ -22,7 +22,7 @@
 ### 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
+- If you use tmux, make sure $TERM starts with "screen"
 - For more Vim stuff, check out https://github.com/junegunn/fzf.vim
 
 Describe your problem or suggestion from here ...

CHANGELOG.md

@@ -1,6 +1,26 @@
 CHANGELOG
 =========
 
+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

Dockerfile

@@ -0,0 +1,11 @@
+FROM archlinux/base:latest
+RUN pacman -Sy && pacman --noconfirm -S awk git tmux zsh fish ruby procps go make
+RUN gem install --no-ri --no-rdoc 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 ]

Makefile

@@ -1,12 +1,5 @@
 ifndef GOOS
-UNAME_S := $(shell uname -s)
-ifeq ($(UNAME_S),Darwin)
-	GOOS := darwin
-else ifeq ($(UNAME_S),Linux)
-	GOOS := linux
-else
-$(error "$$GOOS is not defined.")
-endif
+GOOS        := $(word 1, $(subst /, " ", $(word 4, $(shell go version))))
 endif
 
 MAKEFILE    := $(realpath $(lastword $(MAKEFILE_LIST)))
@@ -135,4 +128,12 @@ target/$(BINARYARM8): $(SOURCES) vendor
 bin/fzf: target/$(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
+
+.PHONY: all release release-all test install clean docker docker-test

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"> [![travis-ci](https://travis-ci.org/junegunn/fzf.svg?branch=master)](https://travis-ci.org/junegunn/fzf)
 ===
 
 fzf is a general-purpose command-line fuzzy finder.
@@ -26,6 +26,7 @@ Table of Contents
       * [Using Homebrew or Linuxbrew](#using-homebrew-or-linuxbrew)
       * [Using git](#using-git)
       * [As Vim plugin](#as-vim-plugin)
+      * [Arch Linux](#arch-linux)
       * [Fedora](#fedora)
       * [Windows](#windows)
    * [Upgrading fzf](#upgrading-fzf)
@@ -99,7 +100,7 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 ### As Vim plugin
 
 Once you have fzf installed, you can enable it inside Vim simply by adding the
-directory to `&runtimepath` as follows:
+directory to `&runtimepath` in your Vim configuration file as follows:
 
 ```vim
 " If installed using Homebrew
@@ -131,6 +132,12 @@ Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
   " and you don't have to run install script if you use fzf only in Vim.
 ```
 
+### Arch Linux
+
+```sh
+sudo pacman -S fzf
+```
+
 ### Fedora
 
 fzf is available in Fedora 26 and above, and can be installed using the usual
@@ -142,8 +149,7 @@ sudo dnf install fzf
 
 Shell completion and plugins for vim or neovim are enabled by default. Shell
 key bindings are installed but not enabled by default. See Fedora's package
-documentation for more information.
-
+documentation (/usr/share/doc/fzf/README.Fedora) for more information.
 
 ### Windows
 
@@ -217,8 +223,8 @@ 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 $(fzf --height 40% --reverse)
@@ -228,7 +234,7 @@ You can add these options to `$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
@@ -237,14 +243,15 @@ 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,
@@ -265,7 +272,7 @@ or `py`.
     - e.g. `export FZF_DEFAULT_COMMAND='fd --type f'`
 - `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
 

bin/fzf-tmux

@@ -136,6 +136,11 @@ fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
 cleanup() {
   \rm -f $argsf $fifo1 $fifo2 $fifo3
 
+  # Restore tmux window options
+  if [[ "${#tmux_win_opts[@]}" -gt 0 ]]; then
+    eval "tmux ${tmux_win_opts[@]}"
+  fi
+
   # Remove temp window if we were zoomed
   if [[ -n "$zoomed" ]]; then
     tmux display-message -p "#{window_id}" > /dev/null
@@ -174,6 +179,8 @@ pppid=$$
 echo -n "trap 'kill -SIGUSR1 -$pppid' EXIT SIGINT SIGTERM;" > $argsf
 close="; trap - EXIT SIGINT SIGTERM $close"
 
+tmux_win_opts=( $(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/') )
+
 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 \;\

install

@@ -2,13 +2,16 @@
 
 set -u
 
-version=0.17.3
+version=0.17.4
 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 +21,7 @@ usage: $0 [OPTIONS]
     --bin                Download fzf binary only; Do not generate ~/.fzf.{bash,zsh}
     --all                Download fzf binary and update configuration files
                          to enable key bindings and fuzzy completion
+    --xdg                Generate files under \$XDG_CONFIG_HOME/fzf
     --[no-]key-bindings  Enable/disable key bindings (CTRL-T, CTRL-R, ALT-C)
     --[no-]completion    Enable/disable fuzzy completion (bash & zsh)
     --[no-]update-rc     Whether or not to update shell configuration files
@@ -43,6 +47,11 @@ for opt in "$@"; do
       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    ;;
     --completion)      auto_completion=1 ;;
@@ -69,6 +78,7 @@ fzf_base="$(pwd)"
 ask() {
   while true; do
     read -p "$1 ([y]/n) " -r
+    REPLY=${REPLY:-"y"}
     if [[ $REPLY =~ ^[Yy]$ ]]; then
       return 1
     elif [[ $REPLY =~ ^[Nn]$ ]]; then
@@ -239,8 +249,8 @@ 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
@@ -252,7 +262,7 @@ for shell in $shells; do
     fzf_key_bindings="# $fzf_key_bindings"
   fi
 
-  cat > $src << EOF
+  cat > "$src" << EOF
 # Setup fzf
 # ---------
 if [[ ! "\$PATH" == *$fzf_base/bin* ]]; then
@@ -280,13 +290,13 @@ if [[ "$shells" =~ fish ]]; then
 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 +362,11 @@ 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' \

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 "Dec 2017" "fzf 0.17.3" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Jun 2018" "fzf 0.17.4" "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 "Dec 2017" "fzf 0.17.3" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Jun 2018" "fzf 0.17.4" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -155,9 +155,22 @@ the full screen.
 .BI "--min-height=" "HEIGHT"
 Minimum height when \fB--height\fR is given in percent (default: 10).
 Ignored when \fB--height\fR is not specified.
+.TP
+.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 "--reverse"
-Reverse orientation
+A synonym for \fB--layout=reverse\fB
+
 .TP
 .B "--border"
 Draw border above and below the finder
@@ -195,7 +208,7 @@ Input prompt (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
@@ -285,9 +298,15 @@ was made) individually quoted.
 e.g. \fBfzf --multi --preview='head -10 {+}'\fR
      \fBgit log --oneline | fzf --multi --preview 'git show {+1}'\fR
 
+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.
 
 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.
 .RE
 .TP
 .BI "--preview-window=" "[POSITION][:SIZE[%]][:wrap][:hidden]"
@@ -461,6 +480,10 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fIenter\fR       (\fIreturn\fR \fIctrl-m\fR)
     \fIspace\fR
     \fIbspace\fR      (\fIbs\fR)
+    \fIalt-up\fR
+    \fIalt-down\fR
+    \fIalt-left\fR
+    \fIalt-right\fR
     \fIalt-enter\fR
     \fIalt-space\fR
     \fIalt-bspace\fR  (\fIalt-bs\fR)
@@ -477,6 +500,8 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
     \fIend\fR
     \fIpgup\fR        (\fIpage-up\fR)
     \fIpgdn\fR        (\fIpage-down\fR)
+    \fIshift-up\fR
+    \fIshift-down\fR
     \fIshift-left\fR
     \fIshift-right\fR
     \fIleft-click\fR
@@ -520,8 +545,8 @@ triggered whenever the query string is changed.
     \fBpage-up\fR               \fIpgup\fR
     \fBhalf-page-down\fR
     \fBhalf-page-up\fR
-    \fBpreview-down\fR
-    \fBpreview-up\fR
+    \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)
@@ -531,8 +556,8 @@ triggered whenever the query string is changed.
     \fBtoggle\fR                (\fIright-click\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)
+    \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-sort\fR
@@ -583,7 +608,7 @@ 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).
 
 .SH AUTHOR

plugin/fzf.vim

@@ -50,9 +50,9 @@ if s:is_win
   " Use utf-8 for fzf.vim commands
   " Return array of shell commands for cmd.exe
   function! s:wrap_cmds(cmds)
-    return ['@echo off', 'for /f "tokens=4" %%a in (''chcp'') do set origchcp=%%a', 'chcp 65001 > nul'] +
+    return map(['@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']
+          \ ['chcp %origchcp% > nul'], 'v:val."\r"')
   endfunction
 else
   let s:term_marker = ";#FZF"
@@ -231,6 +231,7 @@ function! s:common_sink(action, lines) abort
         doautocmd BufEnter
       endif
     endfor
+  catch /^Vim:Interrupt$/
   finally
     let &autochdir = autochdir
     silent! autocmd! fzf_swap
@@ -586,7 +587,7 @@ function! s:calc_size(max, val, dict)
     let srcsz = len(a:dict.source)
   endif
 
-  let opts = get(a:dict, 'options', '').$FZF_DEFAULT_OPTS
+  let opts = s:evaluate_opts(get(a:dict, 'options', '')).$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')
   return srcsz >= 0 ? min([srcsz + margin, size]) : size
@@ -699,9 +700,9 @@ 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)})
+      let fzf.buf = term_start([&shell, &shellcmdflag, command], {'curwin': 1, 'exit_cb': function(fzf.on_exit)})
       if !has('patch-8.0.1261') && !has('nvim') && !s:is_win
-        call term_wait(t, 20)
+        call term_wait(fzf.buf, 20)
       endif
     endif
   finally

shell/completion.bash

@@ -1,4 +1,3 @@
-#!/bin/bash
 #     ____      ____
 #    / __/___  / __/
 #   / /_/_  / / /_
@@ -38,9 +37,9 @@ __fzfcmd_complete() {
     echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
 }
 
-_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_filter() {
+  sed 's/^\(.*-F\) *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\3="\1 %s \3 #\2"; [[ "\1" = *" -o nospace "* ]] \&\& [[ ! "$__fzf_nospace_commands" = *" \3 "* ]] \&\& __fzf_nospace_commands="$__fzf_nospace_commands \3 ";/' |
+  awk -F= '{OFS = FS} {gsub(/[^A-Za-z0-9_= ;]/, "_", $1);}1'
 }
 
 _fzf_opts_completion() {
@@ -122,13 +121,17 @@ _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 "$cmd")
+    orig_complete=$(complete -p "$cmd" 2> /dev/null)
     _completion_loader "$@"
     ret=$?
     # _completion_loader may not have updated completion for the command
-    if [ "$(complete -p "$cmd")" != "$orig_complete" ]; then
-      eval "$(complete | command grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)"
-      eval "$orig_complete"
+    if [ "$(complete -p "$cmd" 2> /dev/null)" != "$orig_complete" ]; then
+      eval "$(complete | command grep " -F.* $orig_cmd$" | __fzf_orig_completion_filter)"
+      if [[ "$__fzf_nospace_commands" = *" $orig_cmd "* ]]; then
+        eval "${orig_complete/ -F / -o nospace -F }"
+      else
+        eval "$orig_complete"
+      fi
     fi
     return $ret
   fi
@@ -145,7 +148,7 @@ __fzf_generic_path_completion() {
     base=${cur:0:${#cur}-${#trigger}}
     eval "base=$base"
 
-    dir="$base"
+    [[ $base = *"/"* ]] && dir="$base"
     while true; do
       if [ -z "$dir" ] || [ -d "$dir" ]; then
         leftover=${base/#"$dir"}
@@ -156,6 +159,7 @@ __fzf_generic_path_completion() {
           printf "%q$3 " "$item"
         done)
         matches=${matches% }
+        [[ -z "$3" ]] && [[ "$__fzf_nospace_commands" = *" ${COMP_WORDS[0]} "* ]] && matches="$matches "
         if [ -n "$matches" ]; then
           COMPREPLY=( "$matches" )
         else
@@ -278,9 +282,9 @@ a_cmds="
 x_cmds="kill ssh telnet unset unalias export"
 
 # Preserve existing completion
-eval $(complete |
+eval "$(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_filter)"
 
 if type _completion_loader > /dev/null 2>&1; then
   _fzf_completion_loader=1

shell/completion.zsh

@@ -1,4 +1,3 @@
-#!/bin/zsh
 #     ____      ____
 #    / __/___  / __/
 #   / /_/_  / / /_
@@ -37,8 +36,7 @@ __fzfcmd_complete() {
 
 __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}
+  base=$1
   lbuf=$2
   compgen=$3
   fzf_opts=$4
@@ -47,14 +45,14 @@ __fzf_generic_path_completion() {
   fzf="$(__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
         echo -n "${(q)item}$suffix "
       done)

shell/key-bindings.bash

@@ -56,7 +56,7 @@ __fzf_history__() (
   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) |
+    FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS --tac --sync -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"
@@ -80,7 +80,7 @@ if [[ ! -o vi ]]; then
   fi
 
   # 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"'
+  bind '"\C-r": " \C-e\C-u\C-y\ey\C-u`__fzf_history__`\e\C-e\er\e^"'
 
   # ALT-C - cd into the selected directory
   bind '"\ec": " \C-e\C-u`__fzf_cd__`\e\C-e\er\C-m"'
@@ -110,7 +110,7 @@ else
   bind -m vi-command '"\C-t": "i\C-t"'
 
   # 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$a\C-x\C-r"'
+  bind '"\C-r": "\C-x\C-addi`__fzf_history__`\C-x\C-e\C-x\C-r\C-x^\C-x\C-a$a"'
   bind -m vi-command '"\C-r": "i\C-r"'
 
   # ALT-C - cd into the selected directory

src/ansi_test.go

@@ -26,7 +26,7 @@ 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)

src/constants.go

@@ -9,7 +9,7 @@ import (
 
 const (
 	// Current version
-	version = "0.17.3"
+	version = "0.17.4"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
@@ -59,7 +59,7 @@ func init() {
 	} 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`
+		defaultCommand = `for /r %P in (*) do @(set "_curfile=%P" & set "_curfile=!_curfile:%__CD__%=!" & echo !_curfile!)`
 	}
 }
 

src/options.go

@@ -53,7 +53,7 @@ const usage = `usage: fzf [options]
                           height instead of using fullscreen
     --min-height=HEIGHT   Minimum height when --height is given in percent
                           (default: 10)
-    --reverse             Reverse orientation
+    --layout=LAYOUT       Choose layout: [default|reverse|reverse-list]
     --border              Draw border above and below the finder
     --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
     --inline-info         Display finder info inline with the query
@@ -90,7 +90,8 @@ const usage = `usage: fzf [options]
 
   Environment variables
     FZF_DEFAULT_COMMAND   Default command to use when input is tty
-    FZF_DEFAULT_OPTS      Default options (e.g. '--reverse --inline-info')
+    FZF_DEFAULT_OPTS      Default options
+                          (e.g. '--layout=reverse --inline-info')
 
 `
 
@@ -132,6 +133,14 @@ const (
 	posRight
 )
 
+type layoutType int
+
+const (
+	layoutDefault layoutType = iota
+	layoutReverse
+	layoutReverseList
+)
+
 type previewOpts struct {
 	command  string
 	position windowPosition
@@ -161,7 +170,7 @@ type Options struct {
 	Bold        bool
 	Height      sizeSpec
 	MinHeight   int
-	Reverse     bool
+	Layout      layoutType
 	Cycle       bool
 	Hscroll     bool
 	HscrollOff  int
@@ -211,7 +220,7 @@ func defaultOptions() *Options {
 		Black:       false,
 		Bold:        true,
 		MinHeight:   10,
-		Reverse:     false,
+		Layout:      layoutDefault,
 		Cycle:       false,
 		Hscroll:     true,
 		HscrollOff:  10,
@@ -410,6 +419,14 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = tui.AltSlash
 		case "alt-bs", "alt-bspace":
 			chord = tui.AltBS
+		case "alt-up":
+			chord = tui.AltUp
+		case "alt-down":
+			chord = tui.AltDown
+		case "alt-left":
+			chord = tui.AltLeft
+		case "alt-right":
+			chord = tui.AltRight
 		case "tab":
 			chord = tui.Tab
 		case "btab", "shift-tab":
@@ -426,6 +443,10 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = tui.PgUp
 		case "pgdn", "page-down":
 			chord = tui.PgDn
+		case "shift-up":
+			chord = tui.SUp
+		case "shift-down":
+			chord = tui.SDown
 		case "shift-left":
 			chord = tui.SLeft
 		case "shift-right":
@@ -845,6 +866,20 @@ func parseHeight(str string) sizeSpec {
 	return size
 }
 
+func parseLayout(str string) layoutType {
+	switch str {
+	case "default":
+		return layoutDefault
+	case "reverse":
+		return layoutReverse
+	case "reverse-list":
+		return layoutReverseList
+	default:
+		errorExit("invalid layout (expected: default / reverse / reverse-list)")
+	}
+	return layoutDefault
+}
+
 func parsePreviewWindow(opts *previewOpts, input string) {
 	// Default
 	opts.position = posRight
@@ -1025,10 +1060,13 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Bold = true
 		case "--no-bold":
 			opts.Bold = false
+		case "--layout":
+			opts.Layout = parseLayout(
+				nextString(allArgs, &i, "layout required (default / reverse / reverse-list)"))
 		case "--reverse":
-			opts.Reverse = true
+			opts.Layout = layoutReverse
 		case "--no-reverse":
-			opts.Reverse = false
+			opts.Layout = layoutDefault
 		case "--cycle":
 			opts.Cycle = true
 		case "--no-cycle":
@@ -1144,6 +1182,8 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.Height = parseHeight(value)
 			} else if match, value := optString(arg, "--min-height="); match {
 				opts.MinHeight = atoi(value)
+			} else if match, value := optString(arg, "--layout="); match {
+				opts.Layout = parseLayout(value)
 			} else if match, value := optString(arg, "--toggle-sort="); match {
 				parseToggleSort(opts.Keymap, value)
 			} else if match, value := optString(arg, "--expect="); match {

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)
 		}
 	}
 }
@@ -99,7 +99,7 @@ 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"}} {
@@ -108,7 +108,7 @@ 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)
 			}
 		}
 		{
@@ -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)
 			}
 		}
 	}

src/pattern.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"fmt"
 	"regexp"
 	"strings"
 
@@ -34,6 +35,11 @@ type term struct {
 	caseSensitive 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
 
 // Pattern represents search pattern

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")

src/terminal.go

@@ -24,7 +24,7 @@ import (
 var placeholder *regexp.Regexp
 
 func init() {
-	placeholder = regexp.MustCompile("\\\\?(?:{\\+?[0-9,-.]*}|{q})")
+	placeholder = regexp.MustCompile("\\\\?(?:{[+s]*[0-9,-.]*}|{q})")
 }
 
 type jumpMode int
@@ -59,7 +59,7 @@ type Terminal struct {
 	inlineInfo bool
 	prompt     string
 	promptLen  int
-	reverse    bool
+	layout     layoutType
 	fullscreen bool
 	hscroll    bool
 	hscrollOff int
@@ -221,6 +221,12 @@ const (
 	actTop
 )
 
+type placeholderFlags struct {
+	plus          bool
+	preserveSpace bool
+	query         bool
+}
+
 func toActions(types ...actionType) []action {
 	actions := make([]action, len(types))
 	for idx, t := range types {
@@ -277,6 +283,9 @@ func defaultKeymap() map[int][]action {
 	keymap[tui.PgUp] = toActions(actPageUp)
 	keymap[tui.PgDn] = toActions(actPageDown)
 
+	keymap[tui.SUp] = toActions(actPreviewUp)
+	keymap[tui.SDown] = toActions(actPreviewDown)
+
 	keymap[tui.Rune] = toActions(actRune)
 	keymap[tui.Mouse] = toActions(actMouse)
 	keymap[tui.DoubleClick] = toActions(actAccept)
@@ -293,10 +302,11 @@ func trimQuery(query string) []rune {
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	input := trimQuery(opts.Query)
 	var header []string
-	if opts.Reverse {
-		header = opts.Header
-	} else {
+	switch opts.Layout {
+	case layoutDefault, layoutReverseList:
 		header = reverseStringArray(opts.Header)
+	default:
+		header = opts.Header
 	}
 	var delay time.Duration
 	if opts.Tac {
@@ -354,7 +364,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	t := Terminal{
 		initDelay:  delay,
 		inlineInfo: opts.InlineInfo,
-		reverse:    opts.Reverse,
+		layout:     opts.Layout,
 		fullscreen: fullscreen,
 		hscroll:    opts.Hscroll,
 		hscrollOff: opts.HscrollOff,
@@ -634,8 +644,21 @@ func (t *Terminal) resizeWindows() {
 }
 
 func (t *Terminal) move(y int, x int, clear bool) {
-	if !t.reverse {
-		y = t.window.Height() - y - 1
+	h := t.window.Height()
+
+	switch t.layout {
+	case layoutDefault:
+		y = h - y - 1
+	case layoutReverseList:
+		n := 2 + len(t.header)
+		if t.inlineInfo {
+			n--
+		}
+		if y < n {
+			y = h - y - 1
+		} else {
+			y -= n
+		}
 	}
 
 	if clear {
@@ -739,7 +762,7 @@ func (t *Terminal) printList() {
 	count := t.merger.Length() - t.offset
 	for j := 0; j < maxy; j++ {
 		i := j
-		if !t.reverse {
+		if t.layout == layoutDefault {
 			i = maxy - 1 - j
 		}
 		line := i + 2 + len(t.header)
@@ -1127,16 +1150,46 @@ func quoteEntry(entry string) string {
 	return "'" + strings.Replace(entry, "'", "'\\''", -1) + "'"
 }
 
-func hasPlusFlag(template string) bool {
-	for _, match := range placeholder.FindAllString(template, -1) {
-		if match[0] == '\\' {
-			continue
-		}
-		if match[1] == '+' {
-			return true
+func parsePlaceholder(match string) (bool, string, placeholderFlags) {
+	flags := placeholderFlags{}
+
+	if match[0] == '\\' {
+		// Escaped placeholder pattern
+		return true, match[1:], flags
+	}
+
+	skipChars := 1
+	for _, char := range match[1:] {
+		switch char {
+		case '+':
+			flags.plus = true
+			skipChars++
+		case 's':
+			flags.preserveSpace = true
+			skipChars++
+		case 'q':
+			flags.query = true
+		default:
+			break
 		}
 	}
-	return false
+
+	matchWithoutFlags := "{" + match[skipChars:]
+
+	return false, matchWithoutFlags, flags
+}
+
+func hasPreviewFlags(template string) (plus bool, query bool) {
+	for _, match := range placeholder.FindAllString(template, -1) {
+		_, _, flags := parsePlaceholder(match)
+		if flags.plus {
+			plus = true
+		}
+		if flags.query {
+			query = true
+		}
+	}
+	return
 }
 
 func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, forcePlus bool, query string, allItems []*Item) string {
@@ -1149,9 +1202,10 @@ func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, fo
 		selected = []*Item{}
 	}
 	return placeholder.ReplaceAllStringFunc(template, func(match string) string {
-		// Escaped pattern
-		if match[0] == '\\' {
-			return match[1:]
+		escaped, match, flags := parsePlaceholder(match)
+
+		if escaped {
+			return match
 		}
 
 		// Current query
@@ -1159,13 +1213,8 @@ func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, fo
 			return quoteEntry(query)
 		}
 
-		plusFlag := forcePlus
-		if match[1] == '+' {
-			match = "{" + match[2:]
-			plusFlag = true
-		}
 		items := current
-		if plusFlag {
+		if flags.plus || forcePlus {
 			items = selected
 		}
 
@@ -1201,7 +1250,9 @@ func replacePlaceholder(template string, stripAnsi bool, delimiter Delimiter, fo
 					str = str[:delims[len(delims)-1][0]]
 				}
 			}
-			str = strings.TrimSpace(str)
+			if !flags.preserveSpace {
+				str = strings.TrimSpace(str)
+			}
 			replacements[idx] = quoteEntry(str)
 		}
 		return strings.Join(replacements, " ")
@@ -1257,13 +1308,28 @@ func (t *Terminal) currentItem() *Item {
 
 func (t *Terminal) buildPlusList(template string, forcePlus bool) (bool, []*Item) {
 	current := t.currentItem()
-	if !forcePlus && !hasPlusFlag(template) || len(t.selected) == 0 {
+	plus, query := hasPreviewFlags(template)
+	if !(query && len(t.input) > 0 || (forcePlus || plus) && len(t.selected) > 0) {
 		return current != nil, []*Item{current, current}
 	}
-	sels := make([]*Item, len(t.selected)+1)
-	sels[0] = current
-	for i, sel := range t.sortSelected() {
-		sels[i+1] = sel.item
+
+	// We would still want to update preview window even if there is no match if
+	//   1. command template contains {q} and the query string is not empty
+	//   2. or it contains {+} and we have more than one item already selected.
+	// To do so, we pass an empty Item instead of nil to trigger an update.
+	if current == nil {
+		current = &Item{}
+	}
+
+	var sels []*Item
+	if len(t.selected) == 0 {
+		sels = []*Item{current, current}
+	} else {
+		sels = make([]*Item, len(t.selected)+1)
+		sels[0] = current
+		for i, sel := range t.sortSelected() {
+			sels[i+1] = sel.item
+		}
 	}
 	return true, sels
 }
@@ -1628,12 +1694,12 @@ func (t *Terminal) Loop() {
 					req(reqList, reqInfo)
 				}
 			case actToggleIn:
-				if t.reverse {
+				if t.layout != layoutDefault {
 					return doAction(action{t: actToggleUp}, mapkey)
 				}
 				return doAction(action{t: actToggleDown}, mapkey)
 			case actToggleOut:
-				if t.reverse {
+				if t.layout != layoutDefault {
 					return doAction(action{t: actToggleDown}, mapkey)
 				}
 				return doAction(action{t: actToggleUp}, mapkey)
@@ -1761,13 +1827,21 @@ func (t *Terminal) Loop() {
 					mx -= t.window.Left()
 					my -= t.window.Top()
 					mx = util.Constrain(mx-t.promptLen, 0, len(t.input))
-					if !t.reverse {
-						my = t.window.Height() - my - 1
-					}
 					min := 2 + len(t.header)
 					if t.inlineInfo {
 						min--
 					}
+					h := t.window.Height()
+					switch t.layout {
+					case layoutDefault:
+						my = h - my - 1
+					case layoutReverseList:
+						if my < h-min {
+							my += min
+						} else {
+							my = h - my - 1
+						}
+					}
 					if me.Double {
 						// Double-click
 						if my >= min {
@@ -1830,6 +1904,12 @@ func (t *Terminal) Loop() {
 		t.mutex.Unlock() // Must be unlocked before touching reqBox
 
 		if changed {
+			if t.isPreviewEnabled() {
+				_, q := hasPreviewFlags(t.preview.command)
+				if q {
+					t.version++
+				}
+			}
 			t.eventBox.Set(EvtSearchNew, t.sort)
 		}
 		for _, event := range events {
@@ -1854,7 +1934,7 @@ func (t *Terminal) constrain() {
 }
 
 func (t *Terminal) vmove(o int, allowCycle bool) {
-	if t.reverse {
+	if t.layout != layoutDefault {
 		o *= -1
 	}
 	dest := t.cy + o

src/terminal_test.go

@@ -21,6 +21,9 @@ 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 {
@@ -72,6 +75,31 @@ func TestReplacePlaceholder(t *testing.T) {
 	result = replacePlaceholder("echo {1}/{2}/{-1}/{-2}/{..}/{n.t}/\\{}/\\{1}/\\{q}/{3}", true, Delimiter{}, 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}, false, "query", items1)
+	check("echo '  foo'")
+
+	result = replacePlaceholder("echo {s2}", true, Delimiter{str: &delim}, false, "query", items1)
+	check("echo 'bar baz'")
+
+	result = replacePlaceholder("echo {s}", true, Delimiter{str: &delim}, false, "query", items1)
+	check("echo '  foo'\\''bar baz'")
+
+	result = replacePlaceholder("echo {s..}", true, Delimiter{str: &delim}, 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}, false, "query", items1)
+	check("echo '  '")
+
+	result = replacePlaceholder("echo {s2}", true, Delimiter{regex: regex}, false, "query", items1)
+	check("echo ''\\'''")
+
+	result = replacePlaceholder("echo {s3}", true, Delimiter{regex: regex}, false, "query", items1)
+	check("echo ' '")
+
 	// No match
 	result = replacePlaceholder("echo {}/{+}", true, Delimiter{}, false, "query", []*Item{nil, nil})
 	check("echo /")
@@ -81,12 +109,11 @@ func TestReplacePlaceholder(t *testing.T) {
 	check("echo /'  foo'\\''bar baz'")
 
 	// String delimiter
-	delim := "'"
 	result = replacePlaceholder("echo {}/{1}/{2}", true, Delimiter{str: &delim}, 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)
 	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 Delimeter.
+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

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)
 		}
 	}
 }

src/tui/light.go

@@ -32,6 +32,12 @@ 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 {
+		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)
 	}
@@ -48,11 +54,13 @@ 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:]
 	}
@@ -360,6 +368,11 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 	if r.buffer[1] >= 1 && r.buffer[1] <= 'z'-'a'+1 {
 		return Event{int(CtrlAltA + r.buffer[1] - 1), 0, nil}
 	}
+	alt := false
+	if len(r.buffer) > 2 && r.buffer[1] == ESC {
+		r.buffer = r.buffer[1:]
+		alt = true
+	}
 	switch r.buffer[1] {
 	case 32:
 		return Event{AltSpace, 0, nil}
@@ -380,12 +393,25 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 		*sz = 3
 		switch r.buffer[2] {
 		case 68:
+			if alt {
+				return Event{AltLeft, 0, nil}
+			}
 			return Event{Left, 0, nil}
 		case 67:
+			if alt {
+				// Ugh..
+				return Event{AltRight, 0, nil}
+			}
 			return Event{Right, 0, nil}
 		case 66:
+			if alt {
+				return Event{AltDown, 0, nil}
+			}
 			return Event{Down, 0, nil}
 		case 65:
+			if alt {
+				return Event{AltUp, 0, nil}
+			}
 			return Event{Up, 0, nil}
 		case 90:
 			return Event{BTab, 0, nil}
@@ -458,25 +484,22 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 						}
 					}
 					return Event{Invalid, 0, nil}
-				case 59:
+				case ';':
 					if len(r.buffer) != 6 {
 						return Event{Invalid, 0, nil}
 					}
 					*sz = 6
 					switch r.buffer[4] {
-					case 50:
+					case '2', '5':
 						switch r.buffer[5] {
-						case 68:
-							return Event{Home, 0, nil}
-						case 67:
-							return Event{End, 0, nil}
-						}
-					case 53:
-						switch r.buffer[5] {
-						case 68:
-							return Event{SLeft, 0, nil}
-						case 67:
+						case 'A':
+							return Event{SUp, 0, nil}
+						case 'B':
+							return Event{SDown, 0, nil}
+						case 'C':
 							return Event{SRight, 0, nil}
+						case 'D':
+							return Event{SLeft, 0, nil}
 						}
 					} // r.buffer[4]
 				} // r.buffer[3]
@@ -792,7 +815,7 @@ 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) {

src/tui/tcell.go

@@ -295,12 +295,24 @@ func (r *FullscreenRenderer) GetChar() Event {
 			return Event{BSpace, 0, nil}
 
 		case tcell.KeyUp:
+			if alt {
+				return Event{AltUp, 0, nil}
+			}
 			return Event{Up, 0, nil}
 		case tcell.KeyDown:
+			if alt {
+				return Event{AltDown, 0, nil}
+			}
 			return Event{Down, 0, nil}
 		case tcell.KeyLeft:
+			if alt {
+				return Event{AltLeft, 0, nil}
+			}
 			return Event{Left, 0, nil}
 		case tcell.KeyRight:
+			if alt {
+				return Event{AltRight, 0, nil}
+			}
 			return Event{Right, 0, nil}
 
 		case tcell.KeyHome:

src/tui/ttyname_unix.go

@@ -0,0 +1,31 @@
+// +build !windows
+
+package tui
+
+import (
+	"io/ioutil"
+	"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 ""
+}

src/tui/ttyname_windows.go

@@ -0,0 +1,7 @@
+// +build windows
+
+package tui
+
+func ttyname() string {
+	return ""
+}

src/tui/tui.go

@@ -61,6 +61,8 @@ const (
 	Home
 	End
 
+	SUp
+	SDown
 	SLeft
 	SRight
 
@@ -83,6 +85,11 @@ const (
 	AltSlash
 	AltBS
 
+	AltUp
+	AltDown
+	AltLeft
+	AltRight
+
 	Alt0
 )
 

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 {

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

src/util/util_windows.go

@@ -20,7 +20,7 @@ func ExecCommandWith(_shell string, command string) *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

test/test_go.rb

@@ -1060,6 +1060,21 @@ class TestGoFZF < TestBase
     assert_equal '50', readonce.chomp
   end
 
+  def test_header_lines_reverse_list
+    tmux.send_keys "seq 100 | #{fzf '--header-lines=10 -q 5 --layout=reverse-list'}", :Enter
+    2.times do
+      tmux.until do |lines|
+        lines[0]    == '> 50' &&
+          lines[-4] == '  2' &&
+          lines[-3] == '  1' &&
+          lines[-2].include?('/90')
+      end
+      tmux.send_keys :Up
+    end
+    tmux.send_keys :Enter
+    assert_equal '50', readonce.chomp
+  end
+
   def test_header_lines_overflow
     tmux.send_keys "seq 100 | #{fzf '--header-lines=200'}", :Enter
     tmux.until do |lines|
@@ -1087,7 +1102,8 @@ class TestGoFZF < TestBase
     header = File.readlines(FILE).take(5).map(&:strip)
     tmux.until do |lines|
       lines[-2].include?('100/100') &&
-        lines[-7..-3].map(&:strip) == header
+        lines[-7..-3].map(&:strip) == header &&
+        lines[-8] == '> 1'
     end
   end
 
@@ -1096,7 +1112,18 @@ class TestGoFZF < TestBase
     header = File.readlines(FILE).take(5).map(&:strip)
     tmux.until do |lines|
       lines[1].include?('100/100') &&
-        lines[2..6].map(&:strip) == header
+        lines[2..6].map(&:strip) == header &&
+        lines[7] == '> 1'
+    end
+  end
+
+  def test_header_reverse_list
+    tmux.send_keys "seq 100 | #{fzf "--header=\\\"\\$(head -5 #{FILE})\\\" --layout=reverse-list"}", :Enter
+    header = File.readlines(FILE).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[-2].include?('100/100') &&
+        lines[-7..-3].map(&:strip) == header &&
+        lines[0] == '> 1'
     end
   end
 
@@ -1120,6 +1147,16 @@ class TestGoFZF < TestBase
     end
   end
 
+  def test_header_and_header_lines_reverse_list
+    tmux.send_keys "seq 100 | #{fzf "--layout=reverse-list --header-lines 10 --header \\\"\\$(head -5 #{FILE})\\\""}", :Enter
+    header = File.readlines(FILE).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[-2].include?('90/90') &&
+        lines[-7...-2].map(&:strip) == header &&
+        lines[-17...-7].map(&:strip) == (1..10).map(&:to_s).reverse
+    end
+  end
+
   def test_cancel
     tmux.send_keys "seq 10 | #{fzf '--bind 2:cancel'}", :Enter
     tmux.until { |lines| lines[-2].include?('10/10') }
@@ -1145,6 +1182,12 @@ class TestGoFZF < TestBase
     tmux.send_keys :Enter
   end
 
+  def test_margin_reverse_list
+    tmux.send_keys "yes | head -1000 | #{fzf '--margin 5,3 --layout=reverse-list'}", :Enter
+    tmux.until { |lines| lines[4] == '' && lines[5] == '   > y' }
+    tmux.send_keys :Enter
+  end
+
   def test_tabstop
     writelines tempname, ["f\too\tba\tr\tbaz\tbarfooq\tux"]
     {
@@ -1355,6 +1398,35 @@ class TestGoFZF < TestBase
     tmux.until { |_| %w[1 2 3] == File.readlines(tempname).map(&:chomp) }
   end
 
+  def test_preview_flags
+    tmux.send_keys %(seq 10 | sed 's/^/:: /; s/$/  /' |
+        #{FZF} --multi --preview 'echo {{2}/{s2}/{+2}/{+s2}/{q}}'), :Enter
+    tmux.until { |lines| lines[1].include?('{1/1  /1/1  /}') }
+    tmux.send_keys '123'
+    tmux.until { |lines| lines[1].include?('{////123}') }
+    tmux.send_keys 'C-u', '1'
+    tmux.until { |lines| lines.match_count == 2 }
+    tmux.until { |lines| lines[1].include?('{1/1  /1/1  /1}') }
+    tmux.send_keys :BTab
+    tmux.until { |lines| lines[1].include?('{10/10  /1/1  /1}') }
+    tmux.send_keys :BTab
+    tmux.until { |lines| lines[1].include?('{10/10  /1 10/1   10  /1}') }
+    tmux.send_keys '2'
+    tmux.until { |lines| lines[1].include?('{//1 10/1   10  /12}') }
+    tmux.send_keys '3'
+    tmux.until { |lines| lines[1].include?('{//1 10/1   10  /123}') }
+  end
+
+  def test_preview_q_no_match
+    tmux.send_keys %(: | #{FZF} --preview 'echo foo {q}'), :Enter
+    tmux.until { |lines| lines.match_count == 0 }
+    tmux.until { |lines| !lines[1].include?('foo') }
+    tmux.send_keys 'bar'
+    tmux.until { |lines| lines[1].include?('foo bar') }
+    tmux.send_keys 'C-u'
+    tmux.until { |lines| !lines[1].include?('foo') }
+  end
+
   def test_no_clear
     tmux.send_keys "seq 10 | fzf --no-clear --inline-info --height 5 > #{tempname}", :Enter
     prompt = '>   < 10/10'
@@ -1514,7 +1586,7 @@ module TestShell
     lines = retries do
       tmux.prepare
       tmux.send_keys :Escape, :c
-      tmux.until { |lines| lines.item_count.positive? }
+      tmux.until { |lines| lines.match_count.positive? }
     end
     expected = lines.reverse.select { |l| l.start_with? '>' }.first[2..-1]
     tmux.send_keys :Enter
@@ -1551,7 +1623,7 @@ module TestShell
     retries do
       tmux.prepare
       tmux.send_keys 'C-r'
-      tmux.until { |lines| lines.item_count.positive? }
+      tmux.until { |lines| lines.match_count.positive? }
     end
     tmux.send_keys 'C-r'
     tmux.send_keys '3d'
@@ -1583,7 +1655,7 @@ module CompletionTest
     end
     tmux.prepare
     tmux.send_keys 'cat /tmp/fzf-test/10**', :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
     tmux.send_keys ' !d'
     tmux.until { |lines| lines.match_count == 2 }
     tmux.send_keys :Tab, :Tab
@@ -1597,7 +1669,7 @@ module CompletionTest
     # ~USERNAME**<TAB>
     tmux.send_keys 'C-u'
     tmux.send_keys "cat ~#{ENV['USER']}**", :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
     tmux.send_keys "'.fzf-home"
     tmux.until { |lines| lines.select { |l| l.include? '.fzf-home' }.count > 1 }
     tmux.send_keys :Enter
@@ -1615,7 +1687,7 @@ module CompletionTest
     # /tmp/fzf\ test**<TAB>
     tmux.send_keys 'C-u'
     tmux.send_keys 'cat /tmp/fzf\ test/**', :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
     tmux.send_keys 'foobar$'
     tmux.until { |lines| lines.match_count == 1 }
     tmux.send_keys :Enter
@@ -1635,7 +1707,7 @@ module CompletionTest
 
   def test_file_completion_root
     tmux.send_keys 'ls /**', :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
     tmux.send_keys :Enter
   end
 
@@ -1646,7 +1718,7 @@ module CompletionTest
     FileUtils.touch '/tmp/fzf-test/d55/xxx'
     tmux.prepare
     tmux.send_keys 'cd /tmp/fzf-test/**', :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
     tmux.send_keys :Tab, :Tab # Tab does not work here
     tmux.send_keys 55
     tmux.until { |lines| lines.match_count == 1 }
@@ -1675,7 +1747,7 @@ module CompletionTest
     tmux.prepare
     tmux.send_keys 'C-L'
     tmux.send_keys 'kill ', :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
     tmux.send_keys 'sleep12345'
     tmux.until { |lines| lines.any_include? 'sleep 12345' }
     tmux.send_keys :Enter
@@ -1694,7 +1766,7 @@ module CompletionTest
     tmux.send_keys '_fzf_compgen_path() { echo "\$1"; seq 10; }', :Enter
     tmux.prepare
     tmux.send_keys 'ls /tmp/**', :Tab
-    tmux.until { |lines| lines.item_count == 11 }
+    tmux.until { |lines| lines.match_count == 11 }
     tmux.send_keys :Tab, :Tab, :Tab
     tmux.until { |lines| lines.select_count == 3 }
     tmux.send_keys :Enter
@@ -1767,7 +1839,7 @@ class TestBash < TestBase
     tmux.paste '_completion_loader() { complete -o default fake; }'
     tmux.paste 'complete -F _fzf_path_completion -o default -o bashdefault fake'
     tmux.send_keys 'fake /tmp/foo**', :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
     tmux.send_keys 'C-c'
 
     tmux.prepare
@@ -1776,7 +1848,7 @@ class TestBash < TestBase
 
     tmux.prepare
     tmux.send_keys 'fake /tmp/foo**', :Tab
-    tmux.until { |lines| lines.item_count.positive? }
+    tmux.until { |lines| lines.match_count.positive? }
   end
 end
 

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