0.13.3

Close #617

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,29 @@
+<!-- Check all that apply [x] -->
+- Category
+    - [ ] fzf binary
+    - [ ] fzf-tmux script
+    - [ ] Key bindings
+    - [ ] Completion
+    - [ ] Vim
+    - [ ] Neovim
+    - [ ] Etc.
+- OS
+    - [ ] Linux
+    - [ ] Mac OS X
+    - [ ] Windows
+    - [ ] Etc.
+- Shell
+    - [ ] bash
+    - [ ] zsh
+    - [ ] fish
+
+<!--
+### Before submitting
+
+- Make sure that you have the latest version of fzf
+- If you use tmux, make sure $TERM is set to screen or screen-256color
+- For more Vim stuff, check out https://github.com/junegunn/fzf.vim
+
+Describe your problem or suggestion from here ...
+-->
+

.gitignore

@@ -1,5 +1,6 @@
 bin
-src/fzf/fzf_*
+src/fzf/fzf-*
+gopath
 pkg
 Gemfile.lock
 .DS_Store

CHANGELOG.md

@@ -1,6 +1,114 @@
 CHANGELOG
 =========
 
+0.13.3
+------
+- Fixed duplicate rendering of the last line in preview window
+
+0.13.2
+------
+- Fixed race condition where preview window is not properly cleared
+
+0.13.1
+------
+- Fixed UI issue with large `--preview` output with many ANSI codes
+
+0.13.0
+------
+- Added preview feature
+    - `--preview CMD`
+    - `--preview-window POS[:SIZE][:hidden]`
+- `{}` in execute action is now replaced to the single-quoted (instead of
+  double-quoted) string of the current line
+- Fixed to ignore control characters for bracketed paste mode
+
+0.12.2
+------
+
+- 256-color capability detection does not require `256` in `$TERM`
+- Added `print-query` action
+- More named keys for binding; <kbd>F1</kbd> ~ <kbd>F10</kbd>,
+  <kbd>ALT-/</kbd>, <kbd>ALT-space</kbd>, and <kbd>ALT-enter</kbd>
+- Added `jump` and `jump-accept` actions that implement [EasyMotion][em]-like
+  movement
+  ![][jump]
+
+[em]: https://github.com/easymotion/vim-easymotion
+[jump]: https://cloud.githubusercontent.com/assets/700826/15367574/b3999dc4-1d64-11e6-85da-28ceeb1a9bc2.png
+
+0.12.1
+------
+
+- Ranking algorithm introduced in 0.12.0 is now universally applied
+- Fixed invalid cache reference in exact mode
+- Fixes and improvements in Vim plugin and shell extensions
+
+0.12.0
+------
+
+- Enhanced ranking algorithm
+- Minor bug fixes
+
+0.11.4
+------
+
+- Added `--hscroll-off=COL` option (default: 10) (#513)
+- Some fixes in Vim plugin and shell extensions
+
+0.11.3
+------
+
+- Graceful exit on SIGTERM (#482)
+- `$SHELL` instead of `sh` for `execute` action and `$FZF_DEFAULT_COMMAND` (#481)
+- Changes in fuzzy completion API
+    - [`_fzf_compgen_{path,dir}`](https://github.com/junegunn/fzf/commit/9617647)
+    - [`_fzf_complete_COMMAND_post`](https://github.com/junegunn/fzf/commit/8206746)
+      for post-processing
+
+0.11.2
+------
+
+- `--tiebreak` now accepts comma-separated list of sort criteria
+    - Each criterion should appear only once in the list
+    - `index` is only allowed at the end of the list
+    - `index` is implicitly appended to the list when not specified
+    - Default is `length` (or equivalently `length,index`)
+- `begin` criterion will ignore leading whitespaces when calculating the index
+- Added `toggle-in` and `toggle-out` actions
+    - Switch direction depending on `--reverse`-ness
+    - `export FZF_DEFAULT_OPTS="--bind tab:toggle-out,shift-tab:toggle-in"`
+- Reduced the initial delay when `--tac` is not given
+    - fzf defers the initial rendering of the screen up to 100ms if the input
+      stream is ongoing to prevent unnecessary redraw during the initial
+      phase. However, 100ms delay is quite noticeable and might give the
+      impression that fzf is not snappy enough. This commit reduces the
+      maximum delay down to 20ms when `--tac` is not specified, in which case
+      the input list quickly fills the entire screen.
+
+0.11.1
+------
+
+- Added `--tabstop=SPACES` option
+
+0.11.0
+------
+
+- Added OR operator for extended-search mode
+- Added `--execute-multi` action
+- Fixed incorrect cursor position when unicode wide characters are used in
+  `--prompt`
+- Fixes and improvements in shell extensions
+
+0.10.9
+------
+
+- Extended-search mode is now enabled by default
+    - `--extended-exact` is deprecated and instead we have `--exact` for
+      orthogonally controlling "exactness" of search
+- Fixed not to display non-printable characters
+- Added `double-click` for `--bind` option
+- More robust handling of SIGWINCH
+
 0.10.8
 ------
 

LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

README.md

@@ -21,7 +21,7 @@ Pros
 Installation
 ------------
 
-fzf project consists of the followings:
+fzf project consists of the following:
 
 - `fzf` executable
 - `fzf-tmux` script for launching fzf in a tmux pane
@@ -50,10 +50,10 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 On OS X, you can use [Homebrew](http://brew.sh/) to install fzf.
 
 ```sh
-brew reinstall --HEAD fzf
+brew install fzf
 
 # Install shell extensions
-/usr/local/Cellar/fzf/HEAD/install
+/usr/local/opt/fzf/install
 ```
 
 #### Install as Vim plugin
@@ -68,7 +68,7 @@ Or you can have [vim-plug](https://github.com/junegunn/vim-plug) manage fzf
 (recommended):
 
 ```vim
-Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': 'yes \| ./install' }
+Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
 ```
 
 #### Upgrading fzf
@@ -78,7 +78,7 @@ while. Please follow the instruction below depending on the installation
 method.
 
 - git: `cd ~/.fzf && git pull && ./install`
-- brew: `brew reinstall --HEAD fzf`
+- brew: `brew update; brew reinstall fzf`
 - vim-plug: `:PlugUpdate fzf`
 
 Usage
@@ -108,32 +108,41 @@ vim $(fzf)
 - Mouse: scroll, click, double-click; shift-click and shift-scroll on
   multi-select mode
 
-#### Extended-search mode
+#### Search syntax
 
-With `-x` or `--extended` option, fzf will start in "extended-search mode".
+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
+!rmx`
 
-In this mode, you can specify multiple patterns delimited by spaces,
-such as: `^music .mp3$ sbtrkt !rmx`
-
-| Token    | Description                      | Match type           |
-| -------- | -------------------------------- | -------------------- |
-| `^music` | Items that start with `music`    | prefix-exact-match   |
-| `.mp3$`  | Items that end with `.mp3`       | suffix-exact-match   |
-| `sbtrkt` | Items that match `sbtrkt`        | fuzzy-match          |
-| `!rmx`   | Items that do not match `rmx`    | inverse-fuzzy-match  |
-| `'wild`  | Items that include `wild`        | exact-match (quoted) |
-| `!'fire` | Items that do not include `fire` | inverse-exact-match  |
+| Token    | Match type           | Description                      |
+| -------- | -------------------- | -------------------------------- |
+| `sbtrkt` | fuzzy-match          | Items that match `sbtrkt`        |
+| `^music` | prefix-exact-match   | Items that start with `music`    |
+| `.mp3$`  | suffix-exact-match   | Items that end with `.mp3`       |
+| `'wild`  | exact-match (quoted) | Items that include `wild`        |
+| `!rmx`   | inverse-fuzzy-match  | Items that do not match `rmx`    |
+| `!'fire` | inverse-exact-match  | Items that do not include `fire` |
 
 If you don't prefer fuzzy matching and do not wish to "quote" every word,
-start fzf with `-e` or `--extended-exact` option. Note that in
-`--extended-exact` mode, `'`-prefix "unquotes" the term.
+start fzf with `-e` or `--exact` option. Note that when  `--exact` is set,
+`'`-prefix "unquotes" the term.
+
+A single bar character term acts as an OR operator. For example, the following
+query matches entries that start with `core` and end with either `go`, `rb`,
+or `py`.
+
+```
+^core go$ | rb$ | py$
+```
 
 #### Environment variables
 
 - `FZF_DEFAULT_COMMAND`
     - Default command to use when input is tty
+    - e.g. `export FZF_DEFAULT_COMMAND='ag -g ""'`
 - `FZF_DEFAULT_OPTS`
-    - Default options. e.g. `export FZF_DEFAULT_OPTS="--extended --cycle"`
+    - Default options
+    - e.g. `export FZF_DEFAULT_OPTS="--reverse --inline-info"`
 
 Examples
 --------
@@ -142,27 +151,6 @@ Many useful examples can be found on [the wiki
 page](https://github.com/junegunn/fzf/wiki/examples). Feel free to add your
 own as well.
 
-Key bindings for command line
------------------------------
-
-The install script will setup the following key bindings for bash, zsh, and
-fish.
-
-- `CTRL-T` - Paste the selected files and directories onto the command line
-    - Set `FZF_CTRL_T_COMMAND` to override the default command
-- `CTRL-R` - Paste the selected command from history onto the command line
-    - Sort is disabled by default to respect chronological ordering
-    - Press `CTRL-R` again to toggle sort
-- `ALT-C` - cd into the selected directory
-
-If you're on a tmux session, fzf will start in a split pane. You may disable
-this tmux integration by setting `FZF_TMUX` to 0, or change the height of the
-pane with `FZF_TMUX_HEIGHT` (e.g. `20`, `50%`).
-
-If you use vi mode on bash, you need to add `set -o vi` *before* `source
-~/.fzf.bash` in your .bashrc, so that it correctly sets up key bindings for vi
-mode.
-
 `fzf-tmux` script
 -----------------
 
@@ -182,6 +170,31 @@ cat /usr/share/dict/words | fzf-tmux -l 20% --multi --reverse
 It will still work even when you're not on tmux, silently ignoring `-[udlr]`
 options, so you can invariably use `fzf-tmux` in your scripts.
 
+Key bindings for command line
+-----------------------------
+
+The install script will setup the following key bindings for bash, zsh, and
+fish.
+
+- `CTRL-T` - Paste the selected files and directories onto the command line
+    - Set `FZF_CTRL_T_COMMAND` to override the default command
+    - Set `FZF_CTRL_T_OPTS` to pass additional options
+- `CTRL-R` - Paste the selected command from history onto the command line
+    - Sort is disabled by default to respect chronological ordering
+    - Press `CTRL-R` again to toggle sort
+    - Set `FZF_CTRL_R_OPTS` to pass additional options
+- `ALT-C` - cd into the selected directory
+    - Set `FZF_ALT_C_COMMAND` to override the default command
+    - Set `FZF_ALT_C_OPTS` to pass additional options
+
+If you're on a tmux session, fzf will start in a split pane. You may disable
+this tmux integration by setting `FZF_TMUX` to 0, or change the height of the
+pane with `FZF_TMUX_HEIGHT` (e.g. `20`, `50%`).
+
+If you use vi mode on bash, you need to add `set -o vi` *before* `source
+~/.fzf.bash` in your .bashrc, so that it correctly sets up key bindings for vi
+mode.
+
 Fuzzy completion for bash and zsh
 ---------------------------------
 
@@ -250,6 +263,25 @@ export FZF_COMPLETION_TRIGGER='~~'
 
 # Options to fzf command
 export FZF_COMPLETION_OPTS='+c -x'
+
+# Use ag instead of the default find command for listing candidates.
+# - The first argument to the function is the base path to start traversal
+# - Note that ag only lists files not directories
+# - See the source code (completion.{bash,zsh}) for the details.
+_fzf_compgen_path() {
+  ag -g "" "$1"
+}
+```
+
+#### Supported commands
+
+On bash, fuzzy completion is enabled only for a predefined set of commands
+(`complete | grep _fzf` to see the list). But you can enable it for other
+commands as well like follows.
+
+```sh
+# There are also _fzf_path_completion and _fzf_dir_completion
+complete -F _fzf_file_completion -o default -o bashdefault doge
 ```
 
 Usage as Vim plugin
@@ -315,7 +347,7 @@ Tips
 
 #### Rendering issues
 
-If you have any rendering issues, check the followings:
+If you have any rendering issues, check the following:
 
 1. Make sure `$TERM` is correctly set. fzf will use 256-color only if it
    contains `256` (e.g. `xterm-256color`)
@@ -335,10 +367,10 @@ filtering:
 
 ```sh
 # Feed the output of ag into fzf
-ag -l -g "" | fzf
+ag -g "" | fzf
 
 # Setting ag as the default source for fzf
-export FZF_DEFAULT_COMMAND='ag -l -g ""'
+export FZF_DEFAULT_COMMAND='ag -g ""'
 
 # Now fzf (w/o pipe) will use ag instead of find
 fzf
@@ -355,7 +387,8 @@ speed of the traversal.
 ```sh
 export FZF_DEFAULT_COMMAND='
   (git ls-tree -r --name-only HEAD ||
-   find * -name ".*" -prune -o -type f -print -o -type l -print) 2> /dev/null'
+   find . -path "*/\.*" -prune -o -type f -print -o -type l -print |
+      sed s/^..//) 2> /dev/null'
 ```
 
 #### Fish shell

bin/fzf-tmux

@@ -2,24 +2,51 @@
 # fzf-tmux: starts fzf in a tmux pane
 # usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
 
+fail() {
+  >&2 echo "$1"
+  exit 2
+}
+
+fzf="$(command -v fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
+[[ -x "$fzf" ]] || fail 'fzf executable not found'
+
 args=()
 opt=""
 skip=""
 swap=""
 close=""
 term=""
-while [ $# -gt 0 ]; do
+[[ -n "$LINES" ]] && lines=$LINES || lines=$(tput lines)
+
+help() {
+  >&2 echo 'usage: fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+
+  Layout
+    -u [HEIGHT[%]]  Split above (up)
+    -d [HEIGHT[%]]  Split below (down)
+    -l [WIDTH[%]]   Split left
+    -r [WIDTH[%]]   Split right
+
+    (default: -d 50%)
+'
+  exit
+}
+
+while [[ $# -gt 0 ]]; do
   arg="$1"
-  case "$arg" in
+  shift
+  [[ -z "$skip" ]] && case "$arg" in
     -)
       term=1
       ;;
+    --help)
+      help
+      ;;
+    --version)
+      echo "fzf-tmux (with fzf $("$fzf" --version))"
+      exit
+      ;;
     -w*|-h*|-d*|-u*|-r*|-l*)
-      if [ -n "$skip" ]; then
-        args+=("$1")
-        shift
-        continue
-      fi
       if [[ "$arg" =~ ^.[lrw] ]]; then
         opt="-h"
         if [[ "$arg" =~ ^.l ]]; then
@@ -35,35 +62,33 @@ while [ $# -gt 0 ]; do
           close="; tmux swap-pane -D"
         fi
       fi
-      if [ ${#arg} -gt 2 ]; then
+      if [[ ${#arg} -gt 2 ]]; then
         size="${arg:2}"
       else
-        shift
         if [[ "$1" =~ ^[0-9]+%?$ ]]; then
           size="$1"
-        else
-          [ -n "$1" -a "$1" != "--" ] && args+=("$1")
           shift
+        else
           continue
         fi
       fi
 
       if [[ "$size" =~ %$ ]]; then
         size=${size:0:((${#size}-1))}
-        if [ -n "$swap" ]; then
+        if [[ -n "$swap" ]]; then
           opt="$opt -p $(( 100 - size ))"
         else
           opt="$opt -p $size"
         fi
       else
-        if [ -n "$swap" ]; then
+        if [[ -n "$swap" ]]; then
           if [[ "$arg" =~ ^.l ]]; then
-            [ -n "$COLUMNS" ] && max=$COLUMNS || max=$(tput cols)
+            [[ -n "$COLUMNS" ]] && max=$COLUMNS || max=$(tput cols)
           else
-            [ -n "$LINES" ] && max=$LINES || max=$(tput lines)
+            max=$lines
           fi
           size=$(( max - size ))
-          [ $size -lt 0 ] && size=0
+          [[ $size -lt 0 ]] && size=0
           opt="$opt -l $size"
         else
           opt="$opt -l $size"
@@ -74,19 +99,28 @@ while [ $# -gt 0 ]; do
       # "--" can be used to separate fzf-tmux options from fzf options to
       # avoid conflicts
       skip=1
+      continue
       ;;
     *)
-      args+=("$1")
+      args+=("$arg")
       ;;
   esac
-  shift
+  [[ -n "$skip" ]] && args+=("$arg")
 done
 
-if [ -z "$TMUX_PANE" ] || tmux list-panes -F '#F' | grep -q Z; then
-  fzf "${args[@]}"
+if [[ -z "$TMUX" ]] || [[ "$lines" -le 15 ]]; then
+  "$fzf" "${args[@]}"
   exit $?
 fi
 
+# Handle zoomed tmux pane by moving it to a temp window
+if tmux list-panes -F '#F' | grep -q Z; then
+  zoomed=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
+fi
+
 set -e
 
 # Clean up named pipes on exit
@@ -97,40 +131,47 @@ fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
 fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
 cleanup() {
   rm -f $argsf $fifo1 $fifo2 $fifo3
+
+  # Remove temp window if we were zoomed
+  if [[ -n "$zoomed" ]]; then
+    tmux swap-pane -t $original_window \; \
+      select-window -t $original_window \; \
+      kill-window -t $tmp_window \; \
+      resize-pane -Z
+  fi
 }
 trap cleanup EXIT SIGINT SIGTERM
 
-fail() {
-  >&2 echo "$1"
-  exit 2
-}
-fzf="$(which fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
-[ -x "$fzf" ] || fail "fzf executable not found"
-
 envs="env TERM=$TERM "
-[ -n "$FZF_DEFAULT_OPTS"    ] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
-[ -n "$FZF_DEFAULT_COMMAND" ] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
+[[ -n "$FZF_DEFAULT_OPTS"    ]] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
+[[ -n "$FZF_DEFAULT_COMMAND" ]] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
 
-mkfifo $fifo2
-mkfifo $fifo3
+mkfifo -m o+w $fifo2
+mkfifo -m o+w $fifo3
 
 # Build arguments to fzf
 opts=""
 for arg in "${args[@]}"; do
+  arg="${arg//\\/\\\\}"
   arg="${arg//\"/\\\"}"
   arg="${arg//\`/\\\`}"
+  arg="${arg//$/\\$}"
   opts="$opts \"$arg\""
 done
 
-if [ -n "$term" -o -t 0 ]; then
-  cat <<< "$fzf $opts > $fifo2; echo \$? > $fifo3 $close" > $argsf
-  tmux set-window-option -q synchronize-panes off \;\
-    split-window $opt "cd $(printf %q "$PWD");$envs bash $argsf" $swap
+if [[ -n "$term" ]] || [[ -t 0 ]]; then
+  cat <<< "\"$fzf\" $opts > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  tmux set-window-option synchronize-panes off \;\
+    set-window-option remain-on-exit off \;\
+    split-window $opt "cd $(printf %q "$PWD");$envs bash $argsf" $swap \
+    > /dev/null 2>&1
 else
   mkfifo $fifo1
-  cat <<< "$fzf $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" > $argsf
-  tmux set-window-option -q synchronize-panes off \;\
-    split-window $opt "$envs bash $argsf" $swap
+  cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" > $argsf
+  tmux set-window-option synchronize-panes off \;\
+    set-window-option remain-on-exit off \;\
+    split-window $opt "$envs bash $argsf" $swap \
+    > /dev/null 2>&1
   cat <&0 > $fifo1 &
 fi
 cat $fifo2

fzf

@@ -370,7 +370,7 @@ class FZF
     +i                    Case-sensitive match
     -n, --nth=N[,..]      Comma-separated list of field index expressions
                           for limiting search scope. Each can be a non-zero
-                          integer or a range expression ([BEGIN]..[END])
+                          integer or a range expression ([BEGIN]..[END]).
         --with-nth=N[,..] Transform the item using index expressions for search
     -d, --delimiter=STR   Field delimiter regex for --nth (default: AWK-style)
 
@@ -396,7 +396,7 @@ class FZF
 
   Environment variables
     FZF_DEFAULT_COMMAND   Default command to use when input is tty
-    FZF_DEFAULT_OPTS      Defaults options. (e.g. "-x -m --sort 10000")] + $/ + $/
+    FZF_DEFAULT_OPTS      Default options (e.g. "-x -m --sort 10000")] + $/ + $/
    exit x
   end
 

install

@@ -1,22 +1,74 @@
 #!/usr/bin/env bash
 
-[[ "$@" =~ --pre ]] && version=0.10.8 pre=1 ||
-                       version=0.10.8 pre=0
+set -u
 
-cd $(dirname $BASH_SOURCE)
-fzf_base=$(pwd)
+[[ "$@" =~ --pre ]] && version=0.13.3 pre=1 ||
+                       version=0.13.3 pre=0
 
-# If stdin is a tty, we are "interactive".
-[ -t 0 ] && interactive=yes
+auto_completion=
+key_bindings=
+update_config=2
+binary_arch=
+allow_legacy=
+
+help() {
+  cat << EOF
+usage: $0 [OPTIONS]
+
+    --help               Show this message
+    --bin                Download fzf binary only; Do not generate ~/.fzf.{bash,zsh}
+    --all                Download fzf binary and update configuration files
+                         to enable key bindings and fuzzy completion
+    --[no-]key-bindings  Enable/disable key bindings (CTRL-T, CTRL-R, ALT-C)
+    --[no-]completion    Enable/disable fuzzy completion (bash & zsh)
+    --[no-]update-rc     Whether or not to update shell configuration files
+
+    --32                 Download 32-bit binary
+    --64                 Download 64-bit binary
+EOF
+}
+
+for opt in "$@"; do
+  case $opt in
+    --help)
+      help
+      exit 0
+      ;;
+    --all)
+      auto_completion=1
+      key_bindings=1
+      update_config=1
+      allow_legacy=1
+      ;;
+    --key-bindings)    key_bindings=1    ;;
+    --no-key-bindings) key_bindings=0    ;;
+    --completion)      auto_completion=1 ;;
+    --no-completion)   auto_completion=0 ;;
+    --update-rc)       update_config=1   ;;
+    --no-update-rc)    update_config=0   ;;
+    --32)              binary_arch=386   ;;
+    --64)              binary_arch=amd64 ;;
+    --bin|--pre)       ;;
+    *)
+      echo "unknown option: $opt"
+      help
+      exit 1
+      ;;
+  esac
+done
+
+cd "$(dirname "${BASH_SOURCE[0]}")"
+fzf_base="$(pwd)"
 
 ask() {
+  # If stdin is a tty, we are "interactive".
   # non-interactive shell: wait for a linefeed
   #     interactive shell: continue after a single keypress
-  [ -n "$interactive" ] && read_n='-n 1' || read_n=
+  read_n=$([ -t 0 ] && echo "-n 1")
 
   read -p "$1 ([y]/n) " $read_n -r
   echo
-  [[ ! $REPLY =~ ^[Nn]$ ]]
+  [[ $REPLY =~ ^[Nn]$ ]]
 }
 
 check_binary() {
@@ -49,15 +101,35 @@ symlink() {
   fi
 }
 
+link_fzf_in_path() {
+  if which_fzf="$(command -v fzf)"; then
+    echo "  - Found in \$PATH"
+    echo "  - Creating symlink: $which_fzf -> bin/fzf"
+    (cd "$fzf_base"/bin && rm -f fzf && ln -sf "$which_fzf" fzf)
+    check_binary && return
+  fi
+  return 1
+}
+
+try_curl() {
+  command -v curl > /dev/null && curl -fL $1 | tar -xz
+}
+
+try_wget() {
+  command -v wget > /dev/null && wget -O - $1 | tar -xz
+}
+
 download() {
   echo "Downloading bin/fzf ..."
   if [ $pre = 0 ]; then
     if [ -x "$fzf_base"/bin/fzf ]; then
       echo "  - Already exists"
       check_binary && return
-    elif [ -x "$fzf_base"/bin/$1 ]; then
+    fi
+    if [ -x "$fzf_base"/bin/$1 ]; then
       symlink $1 && check_binary && return
     fi
+    link_fzf_in_path && return
   fi
   mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
   if [ $? -ne 0 ]; then
@@ -66,14 +138,13 @@ download() {
   fi
 
   local url=https://github.com/junegunn/fzf-bin/releases/download/$version/${1}.tgz
-  if which curl > /dev/null; then
-    curl -fL $url | tar -xz
-  elif which wget > /dev/null; then
-    wget -O - $url | tar -xz
-  else
-    binary_error="curl or wget not found"
+  set -o pipefail
+  if ! (try_curl $url || try_wget $url); then
+    set +o pipefail
+    binary_error="Failed to download with curl and wget"
     return
   fi
+  set +o pipefail
 
   if [ ! -f $1 ]; then
     binary_error="Failed to download ${1}"
@@ -88,26 +159,22 @@ archi=$(uname -sm)
 binary_available=1
 binary_error=""
 case "$archi" in
-  Darwin\ x86_64) download fzf-$version-darwin_amd64 ;;
-  Darwin\ i*86)   download fzf-$version-darwin_386   ;;
-  Linux\ x86_64)  download fzf-$version-linux_amd64  ;;
-  Linux\ i*86)    download fzf-$version-linux_386    ;;
+  Darwin\ x86_64) download fzf-$version-darwin_${binary_arch:-amd64} ;;
+  Darwin\ i*86)   download fzf-$version-darwin_${binary_arch:-386}   ;;
+  Linux\ x86_64)  download fzf-$version-linux_${binary_arch:-amd64}  ;;
+  Linux\ i*86)    download fzf-$version-linux_${binary_arch:-386}    ;;
   *)              binary_available=0 binary_error=1  ;;
 esac
 
-cd "$fzf_base"
-if [ -n "$binary_error" ]; then
-  if [ $binary_available -eq 0 ]; then
-    echo "No prebuilt binary for $archi ... "
-  else
-    echo "  - $binary_error !!!"
-    exit 1
+install_ruby_fzf() {
+  if [ -z "$allow_legacy" ]; then
+    ask "Do you want to install legacy Ruby version instead?" && exit 1
   fi
   echo "Installing legacy Ruby version ..."
 
   # ruby executable
   echo -n "Checking Ruby executable ... "
-  ruby=`which ruby`
+  ruby=$(command -v ruby)
   if [ $? -ne 0 ]; then
     echo "ruby executable not found !!!"
     exit 1
@@ -115,7 +182,7 @@ if [ -n "$binary_error" ]; then
 
   # System ruby is preferred
   system_ruby=/usr/bin/ruby
-  if [ -x $system_ruby -a $system_ruby != "$ruby" ]; then
+  if [ -x $system_ruby ] && [ $system_ruby != "$ruby" ]; then
     $system_ruby --disable-gems -rcurses -e0 2> /dev/null
     [ $? -eq 0 ] && ruby=$system_ruby
   fi
@@ -168,30 +235,62 @@ if [ -n "$binary_error" ]; then
   echo "$fzf_cmd \"\$@\"" >> "$fzf_base"/bin/fzf
   chmod +x "$fzf_base"/bin/fzf
   echo "OK"
+}
+
+cd "$fzf_base"
+if [ -n "$binary_error" ]; then
+  if [ $binary_available -eq 0 ]; then
+    echo "No prebuilt binary for $archi ..."
+  else
+    echo "  - $binary_error !!!"
+  fi
+  if command -v go > /dev/null; then
+    echo -n "Building binary (go get -u github.com/junegunn/fzf/src/fzf) ... "
+    if [ -z "${GOPATH-}" ]; then
+      export GOPATH="${TMPDIR:-/tmp}/fzf-gopath"
+      mkdir -p "$GOPATH"
+    fi
+    if go get -u github.com/junegunn/fzf/src/fzf; then
+      echo "OK"
+      cp "$GOPATH/bin/fzf" "$fzf_base/bin/"
+    else
+      echo "Failed to build binary ..."
+      install_ruby_fzf
+    fi
+  else
+    echo "go executable not found. Cannot build binary ..."
+    install_ruby_fzf
+  fi
 fi
 
 [[ "$*" =~ "--bin" ]] && exit 0
 
 # Auto-completion
-ask "Do you want to add auto-completion support?"
-auto_completion=$?
+if [ -z "$auto_completion" ]; then
+  ask "Do you want to enable fuzzy auto-completion?"
+  auto_completion=$?
+fi
 
 # Key-bindings
-ask "Do you want to add key bindings?"
-key_bindings=$?
+if [ -z "$key_bindings" ]; then
+  ask "Do you want to enable key bindings?"
+  key_bindings=$?
+fi
 
 echo
-for shell in bash zsh; do
+has_zsh=$(command -v zsh > /dev/null && echo 1 || echo 0)
+shells=$([ $has_zsh -eq 1 ] && echo "bash zsh" || echo "bash")
+for shell in $shells; do
   echo -n "Generate ~/.fzf.$shell ... "
   src=~/.fzf.${shell}
 
   fzf_completion="[[ \$- == *i* ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
-  if [ $auto_completion -ne 0 ]; then
+  if [ $auto_completion -eq 0 ]; then
     fzf_completion="# $fzf_completion"
   fi
 
   fzf_key_bindings="source \"$fzf_base/shell/key-bindings.${shell}\""
-  if [ $key_bindings -ne 0 ]; then
+  if [ $key_bindings -eq 0 ]; then
     fzf_key_bindings="# $fzf_key_bindings"
   fi
 
@@ -221,9 +320,8 @@ EOF
 done
 
 # fish
-has_fish=0
-if [ -n "$(which fish 2> /dev/null)" ]; then
-  has_fish=1
+has_fish=$(command -v fish > /dev/null && echo 1 || echo 0)
+if [ $has_fish -eq 1 ]; then
   echo -n "Update fish_user_paths ... "
   fish << EOF
   echo \$fish_user_paths | grep $fzf_base/bin > /dev/null
@@ -237,53 +335,74 @@ EOF
     rm -f ~/.config/fish/functions/fzf.fish && echo "OK" || echo "Failed"
   fi
 
-  if [ $key_bindings -eq 0 ]; then
-    echo -n "Symlink ~/.config/fish/functions/fzf_key_bindings.fish ... "
-    ln -sf $fzf_base/shell/key-bindings.fish \
-           ~/.config/fish/functions/fzf_key_bindings.fish && echo "OK" || echo "Failed"
+  fish_binding=~/.config/fish/functions/fzf_key_bindings.fish
+  if [ $key_bindings -ne 0 ]; then
+    echo -n "Symlink $fish_binding ... "
+    ln -sf "$fzf_base/shell/key-bindings.fish" \
+           "$fish_binding" && echo "OK" || echo "Failed"
+  else
+    echo -n "Removing $fish_binding ... "
+    rm -f "$fish_binding"
+    echo "OK"
   fi
 fi
 
 append_line() {
   set -e
-  echo "Update $2:"
-  echo "  - $1"
-  [ -f "$2" ] || touch "$2"
-  if [ $# -lt 3 ]; then
-    line=$(\grep -nF "$1" "$2" | sed 's/:.*//' | tr '\n' ' ')
+
+  local update line file pat lno
+  update="$1"
+  line="$2"
+  file="$3"
+  pat="${4:-}"
+
+  echo "Update $file:"
+  echo "  - $line"
+  [ -f "$file" ] || touch "$file"
+  if [ $# -lt 4 ]; then
+    lno=$(\grep -nF "$line" "$file" | sed 's/:.*//' | tr '\n' ' ')
   else
-    line=$(\grep -nF "$3" "$2" | sed 's/:.*//' | tr '\n' ' ')
+    lno=$(\grep -nF "$pat" "$file" | sed 's/:.*//' | tr '\n' ' ')
   fi
-  if [ -n "$line" ]; then
-    echo "    - Already exists: line #$line"
+  if [ -n "$lno" ]; then
+    echo "    - Already exists: line #$lno"
   else
-    echo >> "$2"
-    echo "$1" >> "$2"
-    echo "    + Added"
+    if [ $update -eq 1 ]; then
+      echo >> "$file"
+      echo "$line" >> "$file"
+      echo "    + Added"
+    else
+      echo "    ~ Skipped"
+    fi
   fi
   echo
   set +e
 }
 
+if [ $update_config -eq 2 ]; then
+  echo
+  ask "Do you want to update your shell configuration files?"
+  update_config=$?
+fi
 echo
-for shell in bash zsh; do
-  append_line "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" ~/.${shell}rc "~/.fzf.${shell}"
+for shell in $shells; do
+  [ $shell = zsh ] && dest=${ZDOTDIR:-~}/.zshrc || dest=~/.bashrc
+  append_line $update_config "[ -f ~/.fzf.${shell} ] && source ~/.fzf.${shell}" "$dest" "~/.fzf.${shell}"
 done
 
-if [ $key_bindings -eq 0 -a $has_fish -eq 1 ]; then
+if [ $key_bindings -eq 1 ] && [ $has_fish -eq 1 ]; then
   bind_file=~/.config/fish/functions/fish_user_key_bindings.fish
-  append_line "fzf_key_bindings" "$bind_file"
+  append_line $update_config "fzf_key_bindings" "$bind_file"
 fi
 
-cat << EOF
-Finished. Restart your shell or reload config file.
-   source ~/.bashrc  # bash
-   source ~/.zshrc   # zsh
-EOF
-[ $has_fish -eq 1 ] && echo "   fzf_key_bindings  # fish"; cat << EOF
-
-Use uninstall script to remove fzf.
-
-For more information, see: https://github.com/junegunn/fzf
-EOF
+if [ $update_config -eq 1 ]; then
+  echo 'Finished. Restart your shell or reload config file.'
+  echo '   source ~/.bashrc  # bash'
+  [ $has_zsh  -eq 1 ] && echo "   source ${ZDOTDIR:-~}/.zshrc   # zsh"
+  [ $has_fish -eq 1 ] && [ $key_bindings -eq 1 ] && echo '   fzf_key_bindings  # fish'
+  echo
+  echo 'Use uninstall script to remove fzf.'
+  echo
+fi
+echo 'For more information, see: https://github.com/junegunn/fzf'
 

man/man1/fzf-tmux.1

@@ -0,0 +1,54 @@
+.ig
+The MIT License (MIT)
+
+Copyright (c) 2016 Junegunn Choi
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+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 "Jul 2016" "fzf 0.13.3" "fzf-tmux - open fzf in tmux split pane"
+
+.SH NAME
+fzf-tmux - open fzf in tmux split pane
+
+.SH SYNOPSIS
+.B fzf-tmux [-u|-d [HEIGHT[%]]] [-l|-r [WIDTH[%]]] [--] [FZF OPTIONS]
+
+.SH DESCRIPTION
+fzf-tmux is a wrapper script for fzf that opens fzf in a tmux split pane. It is
+designed to work just like fzf except that it does not take up the whole
+screen. You can safely use fzf-tmux instead of fzf in your scripts as the extra
+options will be silently ignored if you're not on tmux.
+
+.SH OPTIONS
+.SS Layout
+
+(default: \fB-d 50%\fR)
+
+.TP
+.B "-u [height[%]]"
+Split above (up)
+.TP
+.B "-d [height[%]]"
+Split below (down)
+.TP
+.B "-l [width[%]]"
+Split left
+.TP
+.B "-r [width[%]]"
+Split right

man/man1/fzf.1

@@ -1,7 +1,7 @@
 .ig
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Oct 2015" "fzf 0.10.8" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Jul 2016" "fzf 0.13.3" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -36,10 +36,11 @@ fzf is a general-purpose command-line fuzzy finder.
 .SS Search mode
 .TP
 .B "-x, --extended"
-Extended-search mode
+Extended-search mode. Since 0.10.9, this is enabled by default. You can disable
+it with \fB+x\fR or \fB--no-extended\fR.
 .TP
-.B "-e, --extended-exact"
-Extended-search mode (exact match)
+.B "-e, --exact"
+Enable exact-match
 .TP
 .B "-i"
 Case-insensitive match (default: smart-case match)
@@ -49,10 +50,10 @@ Case-sensitive match
 .TP
 .BI "-n, --nth=" "N[,..]"
 Comma-separated list of field index expressions for limiting search scope.
-See \fBFIELD INDEX EXPRESSION\fR for details.
+See \fBFIELD INDEX EXPRESSION\fR for the details.
 .TP
 .BI "--with-nth=" "N[,..]"
-Transform each item using index expressions within finder
+Transform the presentation of each line using field index expressions
 .TP
 .BI "-d, --delimiter=" "STR"
 Field delimiter regex for \fB--nth\fR and \fB--with-nth\fR (default: AWK-style)
@@ -63,33 +64,113 @@ Do not sort the result
 .TP
 .B "--tac"
 Reverse the order of the input
+
 .RS
 e.g. \fBhistory | fzf --tac --no-sort\fR
 .RE
 .TP
-.BI "--tiebreak=" "CRI"
-Sort criterion to use when the scores are tied
+.BI "--tiebreak=" "CRI[,..]"
+Comma-separated list of sort criteria to apply when the scores are tied.
 .br
-.R ""
+
 .br
-.BR length "  Prefers item with shorter length"
+.BR length "  Prefers line with shorter length"
 .br
-.BR begin "   Prefers item with matched substring closer to the beginning"
+.BR begin "   Prefers line with matched substring closer to the beginning"
 .br
-.BR end "     Prefers item with matched substring closer to the end"
+.BR end "     Prefers line with matched substring closer to the end"
 .br
-.BR index "   Prefers item that appeared earlier in the input stream"
+.BR index "   Prefers line that appeared earlier in the input stream"
 .br
+
+.br
+- Each criterion should appear only once in the list
+.br
+- \fBindex\fR is only allowed at the end of the list
+.br
+- \fBindex\fR is implicitly appended to the list when not specified
+.br
+- Default is \fBlength\fR (or equivalently \fBlength\fR,index)
+.br
+- If \fBend\fR is found in the list, fzf will scan each line backwards
 .SS Interface
 .TP
 .B "-m, --multi"
 Enable multi-select with tab/shift-tab
 .TP
+.B "--no-mouse"
+Disable mouse
+.TP
+.BI "--bind=" "KEYBINDS"
+Comma-separated list of custom key bindings. See \fBKEY BINDINGS\fR for the
+details.
+.TP
+.B "--cycle"
+Enable cyclic scroll
+.TP
+.B "--no-hscroll"
+Disable horizontal scroll
+.TP
+.BI "--hscroll-off=" "COL"
+Number of screen columns to keep to the right of the highlighted substring
+(default: 10). Setting it to a large value will cause the text to be positioned
+on the center of the screen.
+.TP
+.BI "--jump-labels=" "CHARS"
+Label characters for \fBjump\fR and \fBjump-accept\fR
+.SS Layout
+.TP
+.B "--reverse"
+Reverse orientation
+.TP
+.BI "--margin=" MARGIN
+Comma-separated expression for margins around the finder.
+.br
+
+.br
+.RS
+.BR TRBL "     Same margin for top, right, bottom, and left"
+.br
+.BR TB,RL "    Vertical, horizontal margin"
+.br
+.BR T,RL,B "   Top, horizontal, bottom margin"
+.br
+.BR T,R,B,L "  Top, right, bottom, left margin"
+.br
+
+.br
+Each part can be given in absolute number or in percentage relative to the
+terminal size with \fB%\fR suffix.
+.br
+
+.br
+e.g. \fBfzf --margin 10%\fR
+     \fBfzf --margin 1,5%\fR
+.RE
+.TP
+.B "--inline-info"
+Display finder info inline with the query
+.TP
+.BI "--prompt=" "STR"
+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
+are not affected by \fB--with-nth\fR. ANSI color codes are processed even when
+\fB--ansi\fR is not set.
+.TP
+.BI "--header-lines=" "N"
+The first N lines of the input are treated as the sticky header. When
+\fB--with-nth\fR is set, the lines are transformed just like the other
+lines that follow.
+.SS Display
+.TP
 .B "--ansi"
 Enable processing of ANSI color codes
 .TP
-.B "--no-mouse"
-Disable mouse
+.BI "--tabstop=" SPACES
+Number of spaces for a tab character (default: 8)
 .TP
 .BI "--color=" "[BASE_SCHEME][,COLOR:ANSI]"
 Color configuration. The name of the base color scheme is followed by custom
@@ -127,154 +208,7 @@ e.g. \fBfzf --color=bg+:24\fR
 .TP
 .B "--black"
 Use black background
-.TP
-.B "--reverse"
-Reverse orientation
-.TP
-.BI "--margin=" MARGIN
-Comma-separated expression for margins around the finder.
-.br
-.R ""
-.br
-.RS
-.BR TRBL "     Same margin for top, right, bottom, and left"
-.br
-.BR TB,RL "    Vertical, horizontal margin"
-.br
-.BR T,RL,B "   Top, horizontal, bottom margin"
-.br
-.BR T,R,B,L "  Top, right, bottom, left margin"
-.br
-.R ""
-.br
-Each part can be given in absolute number or in percentage relative to the
-terminal size with \fB%\fR suffix.
-.br
-.R ""
-.br
-e.g. \fBfzf --margin 10%\fR
-     \fBfzf --margin 1,5%\fR
-.RE
-.TP
-.B "--cycle"
-Enable cyclic scroll
-.TP
-.B "--no-hscroll"
-Disable horizontal scroll
-.TP
-.B "--inline-info"
-Display finder info inline with the query
-.TP
-.BI "--prompt=" "STR"
-Input prompt (default: '> ')
-.TP
-.BI "--toggle-sort=" "KEY"
-Key to toggle sort. For the list of the allowed key names, see \fB--bind\fR.
-.TP
-.BI "--bind=" "KEYBINDS"
-Comma-separated list of custom key bindings. Each key binding expression
-follows the following format: \fBKEY:ACTION\fR
-.RS
-e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
-.RE
-
-.RS
-.B AVAILABLE KEYS:
-    \fIctrl-[a-z]\fR
-    \fIalt-[a-z]\fR
-    \fIf[1-4]\fR
-    \fIenter\fR       (\fIreturn\fR)
-    \fIspace\fR
-    \fIbspace\fR      (\fIbs\fR)
-    \fIalt-bspace\fR  (\fIalt-bs\fR)
-    \fItab\fR
-    \fIbtab\fR        (\fIshift-tab\fR)
-    \fIesc\fR
-    \fIdel\fR
-    \fIup\fR
-    \fIdown\fR
-    \fIleft\fR
-    \fIright\fR
-    \fIhome\fR
-    \fIend\fR
-    \fIpgup\fR        (\fIpage-up\fR)
-    \fIpgdn\fR        (\fIpage-down\fR)
-    \fIshift-left\fR
-    \fIshift-right\fR
-    or any single character
-.RE
-
-.RS
-  \fBACTION:               DEFAULT BINDINGS:
-    \fBabort\fR                 \fIctrl-c  ctrl-g  ctrl-q  esc\fR
-    \fBaccept\fR                \fIctrl-m  (enter)\fR
-    \fBbackward-char\fR         \fIctrl-b  left\fR
-    \fBbackward-delete-char\fR  \fIctrl-h  bspace\fR
-    \fBbackward-kill-word\fR    \fIalt-bs\fR
-    \fBbackward-word\fR         \fIalt-b   shift-left\fR
-    \fBbeginning-of-line\fR     \fIctrl-a  home\fR
-    \fBcancel\fR
-    \fBclear-screen\fR          \fIctrl-l\fR
-    \fBdelete-char\fR           \fIdel\fR
-    \fBdelete-char/eof\fR       \fIctrl-d\fR
-    \fBdeselect-all\fR
-    \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
-    \fBend-of-line\fR           \fIctrl-e  end\fR
-    \fBexecute(...)\fR          (see below for the details)
-    \fBforward-char\fR          \fIctrl-f  right\fR
-    \fBforward-word\fR          \fIalt-f   shift-right\fR
-    \fBignore\fR
-    \fBkill-line\fR
-    \fBkill-word\fR             \fIalt-d\fR
-    \fBnext-history\fR          (\fIctrl-n\fR on \fB--history\fR)
-    \fBpage-down\fR             \fIpgdn\fR
-    \fBpage-up\fR               \fIpgup\fR
-    \fBprevious-history\fR      (\fIctrl-p\fR on \fB--history\fR)
-    \fBselect-all\fR
-    \fBtoggle\fR
-    \fBtoggle-all\fR
-    \fBtoggle-down\fR           \fIctrl-i  (tab)\fR
-    \fBtoggle-sort\fR           (equivalent to \fB--toggle-sort\fR)
-    \fBtoggle-up\fR             \fIbtab    (shift-tab)\fR
-    \fBunix-line-discard\fR     \fIctrl-u\fR
-    \fBunix-word-rubout\fR      \fIctrl-w\fR
-    \fBup\fR                    \fIctrl-k  ctrl-p  up\fR
-    \fByank\fR                  \fIctrl-y\fR
-.RE
-
-.RS
-With \fBexecute(...)\fR action, you can execute arbitrary commands without
-leaving fzf. For example, you can turn fzf into a simple file browser by
-binding \fBenter\fR key to \fBless\fR command like follows.
-
-.RS
-\fBfzf --bind "enter:execute(less {})"\fR
-.RE
-
-\fB{}\fR is the placeholder for the double-quoted string of the current line.
-If the command contains parentheses, you can use any of the following
-alternative notations to avoid parse errors.
-
-    \fBexecute[...]\fR
-    \fBexecute~...~\fR
-    \fBexecute!...!\fR
-    \fBexecute@...@\fR
-    \fBexecute#...#\fR
-    \fBexecute$...$\fR
-    \fBexecute%...%\fR
-    \fBexecute^...^\fR
-    \fBexecute&...&\fR
-    \fBexecute*...*\fR
-    \fBexecute;...;\fR
-    \fBexecute/.../\fR
-    \fBexecute|...|\fR
-    \fBexecute:...\fR
-.RS
-This is the special form that frees you from parse errors as it does not expect
-the closing character. The catch is that it should be the last one in the
-comma-separated list.
-.RE
-.RE
+.SS History
 .TP
 .BI "--history=" "HISTORY_FILE"
 Load search history from the specified file and update the file on completion.
@@ -284,17 +218,34 @@ When enabled, \fBCTRL-N\fR and \fBCTRL-P\fR are automatically remapped to
 .BI "--history-size=" "N"
 Maximum number of entries in the history file (default: 1000). The file is
 automatically truncated when the number of the lines exceeds the value.
+.SS Preview
 .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
-are not affected by \fB--with-nth\fR. ANSI color codes are processed even when
-\fB--ansi\fR is not set.
+.BI "--preview=" "COMMAND"
+Execute the given command for the current line and display the result on the
+preview window. \fB{}\fR is the placeholder for the quoted string of the
+current line.
+
+.RS
+e.g. \fBfzf --preview="head -$LINES {}"\fR
+.RE
 .TP
-.BI "--header-lines=" "N"
-The first N lines of the input are treated as the sticky header. When
-\fB--with-nth\fR is set, the lines are transformed just like the other
-lines that follow.
+.BI "--preview-window=" "[POSITION][:SIZE[%]][:hidden]"
+Determine the layout of the preview window. If the argument ends with
+\fB:hidden\fR, the preview window will be hidden by default until
+\fBtoggle-preview\fR action is triggered.
+
+.RS
+.B POSITION: (default: right)
+    \fBup
+    \fBdown
+    \fBleft
+    \fBright
+.RE
+
+.RS
+e.g. \fBfzf --preview="head {}" --preview-window=up:30%\fR
+     \fBfzf --preview="file {}" --preview-window=down:1\fR
+.RE
 .SS Scripting
 .TP
 .BI "-q, --query=" "STR"
@@ -319,6 +270,7 @@ the default enter key. When this option is set, fzf will print the name of the
 key pressed as the first line of its output (or as the second line if
 \fB--print-query\fR is also used). The line will be empty if fzf is completed
 with the default enter key.
+
 .RS
 e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@\fR
 .RE
@@ -326,11 +278,12 @@ e.g. \fBfzf --expect=ctrl-v,ctrl-t,alt-s,f1,f2,~,@\fR
 .B "--sync"
 Synchronous search for multi-staged filtering. If specified, fzf will launch
 ncurses finder only after the input stream is complete.
+
 .RS
 e.g. \fBfzf --multi | fzf --sync\fR
 .RE
 
-.SH ENVIRONMENT
+.SH ENVIRONMENT VARIABLES
 .TP
 .B FZF_DEFAULT_COMMAND
 Default command to use when input is tty
@@ -341,7 +294,11 @@ Default options. e.g. \fBexport FZF_DEFAULT_OPTS="--extended --cycle"\fR
 .SH EXIT STATUS
 .BR 0 "      Normal exit"
 .br
-.BR 1 "      Interrupted with \fBCTRL-C\fR or \fBESC\fR"
+.BR 1 "      No match"
+.br
+.BR 2 "      Error"
+.br
+.BR 130 "    Interrupted with \fBCTRL-C\fR or \fBESC\fR"
 
 .SH FIELD INDEX EXPRESSION
 
@@ -369,9 +326,9 @@ of field index expressions.
 
 .SH EXTENDED SEARCH MODE
 
-With \fB-x\fR or \fB--extended\fR option, fzf will start in "extended-search
-mode". In this mode, you can specify multiple patterns delimited by spaces,
-such as: \fB'wild ^music .mp3$ sbtrkt !rmx\fR
+Unless specified otherwise, fzf will start in "extended-search mode". In this
+mode, you can specify multiple patterns delimited by spaces, such as: \fB'wild
+^music .mp3$ sbtrkt !rmx\fR
 
 .SS Exact-match (quoted)
 A term that is prefixed by a single-quote character (\fB'\fR) is interpreted as
@@ -380,18 +337,137 @@ occurrences of the string.
 
 .SS Anchored-match
 A term can be prefixed by \fB^\fR, or suffixed by \fB$\fR to become an
-anchored-match term. Then fzf will search for the items that start with or end
+anchored-match term. Then fzf will search for the lines that start with or end
 with the given string. An anchored-match term is also an exact-match term.
 
 .SS Negation
-If a term is prefixed by \fB!\fR, fzf will exclude the items that satisfy the
+If a term is prefixed by \fB!\fR, fzf will exclude the lines that satisfy the
 term from the result.
 
-.SS Extended-exact mode
+.SS Exact-match by default
 If you don't prefer fuzzy matching and do not wish to "quote" (prefixing with
-\fB'\fR) every word, start fzf with \fB-e\fR or \fB--extended-exact\fR option
-(instead of \fB-x\fR or \fB--extended\fR). Note that in \fB--extended-exact\fR
-mode, \fB'\fR-prefix "unquotes" the term.
+\fB'\fR) every word, start fzf with \fB-e\fR or \fB--exact\fR option. Note that
+when \fB--exact\fR is set, \fB'\fR-prefix "unquotes" the term.
+
+.SS OR operator
+A single bar character term acts as an OR operator. For example, the following
+query matches entries that start with \fBcore\fR and end with either \fBgo\fR,
+\fBrb\fR, or \fBpy\fR.
+
+e.g. \fB^core go$ | rb$ | py$\fR
+
+.SH KEY BINDINGS
+You can customize key bindings of fzf with \fB--bind\fR option which takes
+a comma-separated list of key binding expressions. Each key binding expression
+follows the following format: \fBKEY:ACTION\fR
+
+e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
+
+.B AVAILABLE KEYS:    (SYNONYMS)
+    \fIctrl-[a-z]\fR
+    \fIalt-[a-z]\fR
+    \fIf[1-10]\fR
+    \fIenter\fR       (\fIreturn\fR \fIctrl-m\fR)
+    \fIspace\fR
+    \fIbspace\fR      (\fIbs\fR)
+    \fIalt-enter\fR
+    \fIalt-space\fR
+    \fIalt-bspace\fR  (\fIalt-bs\fR)
+    \fIalt-/\fR
+    \fItab\fR
+    \fIbtab\fR        (\fIshift-tab\fR)
+    \fIesc\fR
+    \fIdel\fR
+    \fIup\fR
+    \fIdown\fR
+    \fIleft\fR
+    \fIright\fR
+    \fIhome\fR
+    \fIend\fR
+    \fIpgup\fR        (\fIpage-up\fR)
+    \fIpgdn\fR        (\fIpage-down\fR)
+    \fIshift-left\fR
+    \fIshift-right\fR
+    \fIdouble-click\fR
+    or any single character
+
+  \fBACTION:               DEFAULT BINDINGS (NOTES):
+    \fBabort\fR                 \fIctrl-c  ctrl-g  ctrl-q  esc\fR
+    \fBaccept\fR                \fIenter   double-click\fR
+    \fBbackward-char\fR         \fIctrl-b  left\fR
+    \fBbackward-delete-char\fR  \fIctrl-h  bspace\fR
+    \fBbackward-kill-word\fR    \fIalt-bs\fR
+    \fBbackward-word\fR         \fIalt-b   shift-left\fR
+    \fBbeginning-of-line\fR     \fIctrl-a  home\fR
+    \fBcancel\fR
+    \fBclear-screen\fR          \fIctrl-l\fR
+    \fBdelete-char\fR           \fIdel\fR
+    \fBdelete-char/eof\fR       \fIctrl-d\fR
+    \fBdeselect-all\fR
+    \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
+    \fBend-of-line\fR           \fIctrl-e  end\fR
+    \fBexecute(...)\fR          (see below for the details)
+    \fBexecute-multi(...)\fR    (see below for the details)
+    \fBforward-char\fR          \fIctrl-f  right\fR
+    \fBforward-word\fR          \fIalt-f   shift-right\fR
+    \fBignore\fR
+    \fBjump\fR                  (EasyMotion-like 2-keystroke movement)
+    \fBjump-accept\fR           (jump and accept)
+    \fBkill-line\fR
+    \fBkill-word\fR             \fIalt-d\fR
+    \fBnext-history\fR          (\fIctrl-n\fR on \fB--history\fR)
+    \fBpage-down\fR             \fIpgdn\fR
+    \fBpage-up\fR               \fIpgup\fR
+    \fBprevious-history\fR      (\fIctrl-p\fR on \fB--history\fR)
+    \fBprint-query\fR           (print query and exit)
+    \fBselect-all\fR
+    \fBtoggle\fR
+    \fBtoggle-all\fR
+    \fBtoggle-down\fR           \fIctrl-i  (tab)\fR
+    \fBtoggle-in\fR             (\fB--reverse\fR ? \fBtoggle-up\fR : \fBtoggle-down\fR)
+    \fBtoggle-out\fR            (\fB--reverse\fR ? \fBtoggle-down\fR : \fBtoggle-up\fR)
+    \fBtoggle-preview\fR
+    \fBtoggle-sort\fR           (equivalent to \fB--toggle-sort\fR)
+    \fBtoggle-up\fR             \fIbtab    (shift-tab)\fR
+    \fBunix-line-discard\fR     \fIctrl-u\fR
+    \fBunix-word-rubout\fR      \fIctrl-w\fR
+    \fBup\fR                    \fIctrl-k  ctrl-p  up\fR
+    \fByank\fR                  \fIctrl-y\fR
+
+With \fBexecute(...)\fR action, you can execute arbitrary commands without
+leaving fzf. For example, you can turn fzf into a simple file browser by
+binding \fBenter\fR key to \fBless\fR command like follows.
+
+    \fBfzf --bind "enter:execute(less {})"\fR
+
+\fB{}\fR is the placeholder for the quoted string of the current line.
+If the command contains parentheses, you can use any of the following
+alternative notations to avoid parse errors.
+
+    \fBexecute[...]\fR
+    \fBexecute~...~\fR
+    \fBexecute!...!\fR
+    \fBexecute@...@\fR
+    \fBexecute#...#\fR
+    \fBexecute$...$\fR
+    \fBexecute%...%\fR
+    \fBexecute^...^\fR
+    \fBexecute&...&\fR
+    \fBexecute*...*\fR
+    \fBexecute;...;\fR
+    \fBexecute/.../\fR
+    \fBexecute|...|\fR
+    \fBexecute:...\fR
+.RS
+This is the special form that frees you from parse errors as it does not expect
+the closing character. The catch is that it should be the last one in the
+comma-separated list.
+.RE
+
+\fBexecute-multi(...)\fR is an alternative action that executes the command
+with the selected entries when multi-select is enabled (\fB--multi\fR). With
+this action, \fB{}\fR is replaced with the quoted strings of the selected
+entries separated by spaces.
 
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
@@ -402,7 +478,7 @@ Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
 .I https://github.com/junegunn/fzf
 .RE
 .br
-.R ""
+
 .br
 .B Extra Vim plugin:
 .RS

plugin/fzf.vim

@@ -1,4 +1,4 @@
-" Copyright (c) 2015 Junegunn Choi
+" Copyright (c) 2016 Junegunn Choi
 "
 " MIT License
 "
@@ -49,11 +49,7 @@ function! s:fzf_exec()
       throw 'fzf executable not found'
     endif
   endif
-  return s:exec
-endfunction
-
-function! s:tmux_not_zoomed()
-  return system('tmux list-panes -F "#F"') !~# 'Z'
+  return s:shellesc(s:exec)
 endfunction
 
 function! s:tmux_enabled()
@@ -62,7 +58,7 @@ function! s:tmux_enabled()
   endif
 
   if exists('s:tmux')
-    return s:tmux && s:tmux_not_zoomed()
+    return s:tmux
   endif
 
   let s:tmux = 0
@@ -70,7 +66,7 @@ function! s:tmux_enabled()
     let output = system('tmux -V')
     let s:tmux = !v:shell_error && output >= 'tmux 1.7'
   endif
-  return s:tmux && s:tmux_not_zoomed()
+  return s:tmux
 endfunction
 
 function! s:shellesc(arg)
@@ -78,7 +74,7 @@ function! s:shellesc(arg)
 endfunction
 
 function! s:escape(path)
-  return escape(a:path, ' %#''"\')
+  return escape(a:path, ' $%#''"\')
 endfunction
 
 " Upgrade legacy options
@@ -125,6 +121,12 @@ try
     throw v:exception
   endtry
 
+  if !has_key(dict, 'source') && !empty($FZF_DEFAULT_COMMAND)
+    let temps.source = tempname()
+    call writefile(split($FZF_DEFAULT_COMMAND, "\n"), temps.source)
+    let dict.source = (empty($SHELL) ? 'sh' : $SHELL) . ' ' . s:shellesc(temps.source)
+  endif
+
   if has_key(dict, 'source')
     let source = dict.source
     let type = type(source)
@@ -140,20 +142,16 @@ try
   else
     let prefix = ''
   endif
-  let tmux = !has('nvim') && s:tmux_enabled() && s:splittable(dict)
+  let tmux = (!has('nvim') || get(g:, 'fzf_prefer_tmux', 0)) && s:tmux_enabled() && s:splittable(dict)
   let command = prefix.(tmux ? s:fzf_tmux(dict) : fzf_exec).' '.optstr.' > '.temps.result
 
-  try
-    if tmux
-      return s:execute_tmux(dict, command, temps)
-    elseif has('nvim')
-      return s:execute_term(dict, command, temps)
-    else
-      return s:execute(dict, command, temps)
-    endif
-  finally
-    call s:popd(dict)
-  endtry
+  if has('nvim') && !tmux
+    return s:execute_term(dict, command, temps)
+  endif
+
+  let lines = tmux ? s:execute_tmux(dict, command, temps) : s:execute(dict, command, temps)
+  call s:callback(dict, lines)
+  return lines
 finally
   let &shell = oshell
 endtry
@@ -183,7 +181,7 @@ function! s:fzf_tmux(dict)
     endif
   endfor
   return printf('LINES=%d COLUMNS=%d %s %s %s --',
-    \ &lines, &columns, s:fzf_tmux, size, (has_key(a:dict, 'source') ? '' : '-'))
+    \ &lines, &columns, s:shellesc(s:fzf_tmux), size, (has_key(a:dict, 'source') ? '' : '-'))
 endfunction
 
 function! s:splittable(dict)
@@ -197,17 +195,24 @@ function! s:pushd(dict)
       return 1
     endif
     let a:dict.prev_dir = cwd
-    execute 'chdir '.s:escape(a:dict.dir)
+    execute 'lcd' s:escape(a:dict.dir)
     let a:dict.dir = getcwd()
     return 1
   endif
   return 0
 endfunction
 
-function! s:popd(dict)
-  if has_key(a:dict, 'prev_dir')
-    execute 'chdir '.s:escape(remove(a:dict, 'prev_dir'))
+augroup fzf_popd
+  autocmd!
+  autocmd WinEnter * call s:dopopd()
+augroup END
+
+function! s:dopopd()
+  if !exists('w:fzf_prev_dir') || exists('*haslocaldir') && !haslocaldir()
+    return
   endif
+  execute 'lcd' s:escape(w:fzf_prev_dir)
+  unlet w:fzf_prev_dir
 endfunction
 
 function! s:xterm_launcher()
@@ -235,7 +240,7 @@ function! s:exit_handler(code, command, ...)
   return 1
 endfunction
 
-function! s:execute(dict, command, temps)
+function! s:execute(dict, command, temps) abort
   call s:pushd(a:dict)
   silent! !clear 2> /dev/null
   let escaped = escape(substitute(a:command, '\n', '\\n', 'g'), '%#')
@@ -248,10 +253,10 @@ function! s:execute(dict, command, temps)
   endif
   execute 'silent !'.command
   redraw!
-  return s:exit_handler(v:shell_error, command) ? s:callback(a:dict, a:temps) : []
+  return s:exit_handler(v:shell_error, command) ? s:collect(a:temps) : []
 endfunction
 
-function! s:execute_tmux(dict, command, temps)
+function! s:execute_tmux(dict, command, temps) abort
   let command = a:command
   if s:pushd(a:dict)
     " -c '#{pane_current_path}' is only available on tmux 1.9 or above
@@ -260,7 +265,7 @@ function! s:execute_tmux(dict, command, temps)
 
   call system(command)
   redraw!
-  return s:exit_handler(v:shell_error, command) ? s:callback(a:dict, a:temps) : []
+  return s:exit_handler(v:shell_error, command) ? s:collect(a:temps) : []
 endfunction
 
 function! s:calc_size(max, val, dict)
@@ -277,11 +282,12 @@ function! s:calc_size(max, val, dict)
 
   let opts = get(a:dict, 'options', '').$FZF_DEFAULT_OPTS
   let margin = stridx(opts, '--inline-info') > stridx(opts, '--no-inline-info') ? 1 : 2
+  let margin += stridx(opts, '--header') > stridx(opts, '--no-header')
   return srcsz >= 0 ? min([srcsz + margin, size]) : size
 endfunction
 
 function! s:getpos()
-  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$')}
+  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$'), 'tcnt': tabpagenr('$')}
 endfunction
 
 function! s:split(dict)
@@ -290,7 +296,7 @@ function! s:split(dict)
   \ 'down':  ['botright', 'resize', &lines],
   \ 'left':  ['vertical topleft', 'vertical resize', &columns],
   \ 'right': ['vertical botright', 'vertical resize', &columns] }
-  let s:ppos = s:getpos()
+  let ppos = s:getpos()
   try
     for [dir, triple] in items(directions)
       let val = get(a:dict, dir, '')
@@ -303,72 +309,108 @@ function! s:split(dict)
         endif
         execute cmd sz.'new'
         execute resz sz
-        return
+        return [ppos, {}]
       endif
     endfor
     if s:present(a:dict, 'window')
       execute a:dict.window
     else
-      tabnew
+      execute (tabpagenr()-1).'tabnew'
     endif
+    return [ppos, { '&l:wfw': &l:wfw, '&l:wfh': &l:wfh }]
   finally
-    setlocal winfixwidth winfixheight buftype=nofile bufhidden=wipe nobuflisted
+    setlocal winfixwidth winfixheight
   endtry
 endfunction
 
-function! s:execute_term(dict, command, temps)
-  call s:split(a:dict)
-  call s:pushd(a:dict)
-
-  let fzf = { 'buf': bufnr('%'), 'dict': a:dict, 'temps': a:temps, 'name': 'FZF' }
-  let s:command = a:command
+function! s:execute_term(dict, command, temps) abort
+  let [ppos, winopts] = s:split(a:dict)
+  let fzf = { 'buf': bufnr('%'), 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
+            \ 'name': 'FZF', 'winopts': winopts, 'command': a:command }
+  function! fzf.switch_back(inplace)
+    if a:inplace && bufnr('') == self.buf
+      " FIXME: Can't re-enter normal mode from terminal mode
+      " execute "normal! \<c-^>"
+      b #
+      " No other listed buffer
+      if bufnr('') == self.buf
+        enew
+      endif
+    endif
+  endfunction
   function! fzf.on_exit(id, code)
-    let pos = s:getpos()
-    let inplace = pos == s:ppos " {'window': 'enew'}
-    if !inplace
+    if s:getpos() == self.ppos " {'window': 'enew'}
+      for [opt, val] in items(self.winopts)
+        execute 'let' opt '=' val
+      endfor
+      call self.switch_back(1)
+    else
       if bufnr('') == self.buf
         " We use close instead of bd! since Vim does not close the split when
         " there's no other listed buffer (nvim +'set nobuflisted')
         close
       endif
-      if pos.tab == s:ppos.tab
-        wincmd p
-      endif
+      execute 'tabnext' self.ppos.tab
+      execute self.ppos.win.'wincmd w'
     endif
 
-    if !s:exit_handler(a:code, s:command, 1)
+    if !s:exit_handler(a:code, self.command, 1)
       return
     endif
 
     call s:pushd(self.dict)
-    try
-      call s:callback(self.dict, self.temps)
-
-      if inplace && bufnr('') == self.buf
-        execute "normal! \<c-^>"
-        " No other listed buffer
-        if bufnr('') == self.buf
-          bd!
-        endif
-      endif
-    finally
-      call s:popd(self.dict)
-    endtry
+    let lines = s:collect(self.temps)
+    call s:callback(self.dict, lines)
+    call self.switch_back(s:getpos() == self.ppos)
   endfunction
 
-  call termopen(a:command, fzf)
+  try
+    if s:present(a:dict, 'dir')
+      execute 'lcd' s:escape(a:dict.dir)
+    endif
+    call termopen(a:command, fzf)
+  finally
+    if s:present(a:dict, 'dir')
+      lcd -
+    endif
+  endtry
+  setlocal nospell bufhidden=wipe nobuflisted
+  setf fzf
   startinsert
   return []
 endfunction
 
-function! s:callback(dict, temps)
-try
-  if !filereadable(a:temps.result)
-    let lines = []
-  else
-    let lines = readfile(a:temps.result)
+function! s:collect(temps) abort
+  try
+    return filereadable(a:temps.result) ? readfile(a:temps.result) : []
+  finally
+    for tf in values(a:temps)
+      silent! call delete(tf)
+    endfor
+  endtry
+endfunction
+
+function! s:callback(dict, lines) abort
+  " Since anything can be done in the sink function, there is no telling that
+  " the change of the working directory was made by &autochdir setting.
+  "
+  " We use the following heuristic to determine whether to restore CWD:
+  " - Always restore the current directory when &autochdir is disabled.
+  "   FIXME This makes it impossible to change directory from inside the sink
+  "   function when &autochdir is not used.
+  " - In case of an error or an interrupt, a:lines will be empty.
+  "   And it will be an array of a single empty string when fzf was finished
+  "   without a match. In these cases, we presume that the change of the
+  "   directory is not expected and should be undone.
+  let popd = has_key(a:dict, 'prev_dir') &&
+        \ (!&autochdir || (empty(a:lines) || len(a:lines) == 1 && empty(a:lines[0])))
+  if popd
+    let w:fzf_prev_dir = a:dict.prev_dir
+  endif
+
+  try
     if has_key(a:dict, 'sink')
-      for line in lines
+      for line in a:lines
         if type(a:dict.sink) == 2
           call a:dict.sink(line)
         else
@@ -377,20 +419,19 @@ try
       endfor
     endif
     if has_key(a:dict, 'sink*')
-      call a:dict['sink*'](lines)
+      call a:dict['sink*'](a:lines)
     endif
-  endif
+  catch
+    if stridx(v:exception, ':E325:') < 0
+      echoerr v:exception
+    endif
+  endtry
 
-  for tf in values(a:temps)
-    silent! call delete(tf)
-  endfor
-
-  return lines
-catch
-  if stridx(v:exception, ':E325:') < 0
-    echoerr v:exception
+  " We may have opened a new window or tab
+  if popd
+    let w:fzf_prev_dir = a:dict.prev_dir
+    call s:dopopd()
   endif
-endtry
 endfunction
 
 let s:default_action = {
@@ -412,10 +453,16 @@ function! s:cmd_callback(lines) abort
     augroup END
   endif
   try
+    let empty = empty(expand('%')) && line('$') == 1 && empty(getline(1)) && !&modified
     let autochdir = &autochdir
     set noautochdir
     for item in a:lines
-      execute cmd s:escape(item)
+      if empty
+        execute 'e' s:escape(item)
+        let empty = 0
+      else
+        execute cmd s:escape(item)
+      endif
       if exists('#BufEnter') && isdirectory(item)
         doautocmd BufEnter
       endif

shell/completion.bash

@@ -10,9 +10,29 @@
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+# To use custom commands instead of find, override _fzf_compgen_{path,dir}
+if ! declare -f _fzf_compgen_path > /dev/null; then
+  _fzf_compgen_path() {
+    echo "$1"
+    command find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+if ! declare -f _fzf_compgen_dir > /dev/null; then
+  _fzf_compgen_dir() {
+    command find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o -type d \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+###########################################################
+
 _fzf_orig_completion_filter() {
-  sed 's/.*-F *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\2=\1;/' |
-  sed 's/[^a-z0-9_= ;]/_/g'
+  sed 's/^\(.*-F\) *\([^ ]*\).* \([^ ]*\)$/export _fzf_orig_completion_\3="\1 %s \3 #\2";/' |
+  awk -F= '{gsub(/[^a-z0-9_= ;]/, "_", $1); print $1"="$2}'
 }
 
 _fzf_opts_completion() {
@@ -22,7 +42,7 @@ _fzf_opts_completion() {
   prev="${COMP_WORDS[COMP_CWORD-1]}"
   opts="
     -x --extended
-    -e --extended-exact
+    -e --exact
     -i +i
     -n --nth
     -d --delimiter
@@ -55,11 +75,11 @@ _fzf_opts_completion() {
 
   case "${prev}" in
   --tiebreak)
-    COMPREPLY=( $(compgen -W "length begin end index" -- ${cur}) )
+    COMPREPLY=( $(compgen -W "length begin end index" -- "$cur") )
     return 0
     ;;
   --color)
-    COMPREPLY=( $(compgen -W "dark light 16 bw" -- ${cur}) )
+    COMPREPLY=( $(compgen -W "dark light 16 bw" -- "$cur") )
     return 0
     ;;
   --history)
@@ -68,8 +88,8 @@ _fzf_opts_completion() {
     ;;
   esac
 
-  if [[ ${cur} =~ ^-|\+ ]]; then
-    COMPREPLY=( $(compgen -W "${opts}" -- ${cur}) )
+  if [[ "$cur" =~ ^-|\+ ]]; then
+    COMPREPLY=( $(compgen -W "${opts}" -- "$cur") )
     return 0
   fi
 
@@ -77,42 +97,43 @@ _fzf_opts_completion() {
 }
 
 _fzf_handle_dynamic_completion() {
-  local cmd orig ret orig_cmd
+  local cmd orig_var orig ret orig_cmd
   cmd="$1"
   shift
   orig_cmd="$1"
-
-  orig=$(eval "echo \$_fzf_orig_completion_$cmd")
+  orig_var="_fzf_orig_completion_$cmd"
+  orig="${!orig_var##*#}"
   if [ -n "$orig" ] && type "$orig" > /dev/null 2>&1; then
     $orig "$@"
   elif [ -n "$_fzf_completion_loader" ]; then
     _completion_loader "$@"
     ret=$?
-    eval $(complete | \grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)
-    source $BASH_SOURCE
+    eval "$(complete | command grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)"
+    source "${BASH_SOURCE[0]}"
     return $ret
   fi
 }
 
 __fzf_generic_path_completion() {
   local cur base dir leftover matches trigger cmd fzf
-  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
-  cmd=$(echo ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
+  [ "${FZF_TMUX:-1}" != 0 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  cmd=$(echo "${COMP_WORDS[0]}" | sed 's/[^a-z0-9_=]/_/g')
   COMPREPLY=()
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
-  if [[ ${cur} == *"$trigger" ]]; then
+  if [[ "$cur" == *"$trigger" ]]; then
     base=${cur:0:${#cur}-${#trigger}}
-    eval base=$base
+    eval "base=$base"
 
     dir="$base"
-    while [ 1 ]; do
-      if [ -z "$dir" -o -d "$dir" ]; then
+    while true; do
+      if [ -z "$dir" ] || [ -d "$dir" ]; then
         leftover=${base/#"$dir"}
         leftover=${leftover/#\/}
-        [ "$dir" = './' ] && dir=''
+        [ -z "$dir" ] && dir='.'
+        [ "$dir" != "/" ] && dir="${dir/%\//}"
         tput sc
-        matches=$(find -L "$dir"* $1 2> /dev/null | $fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read item; do
+        matches=$(eval "$1 $(printf %q "$dir")" | $fzf $FZF_COMPLETION_OPTS $2 -q "$leftover" | while read -r item; do
           printf "%q$3 " "$item"
         done)
         matches=${matches% }
@@ -135,29 +156,22 @@ __fzf_generic_path_completion() {
   fi
 }
 
-_fzf_feed_fifo() (
-  rm -f "$fifo"
-  mkfifo "$fifo"
-  cat <&0 > "$fifo" &
-)
-
 _fzf_complete() {
-  local fifo cur selected trigger cmd fzf
-  fifo="${TMPDIR:-/tmp}/fzf-complete-fifo-$$"
-  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  local cur selected trigger cmd fzf post
+  post="$(caller 0 | awk '{print $2}')_post"
+  type -t "$post" > /dev/null 2>&1 || post=cat
+  [ "${FZF_TMUX:-1}" != 0 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
 
-  cmd=$(echo ${COMP_WORDS[0]} | sed 's/[^a-z0-9_=]/_/g')
+  cmd=$(echo "${COMP_WORDS[0]}" | sed 's/[^a-z0-9_=]/_/g')
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
-  if [[ ${cur} == *"$trigger" ]]; then
+  if [[ "$cur" == *"$trigger" ]]; then
     cur=${cur:0:${#cur}-${#trigger}}
 
-    _fzf_feed_fifo "$fifo"
     tput sc
-    selected=$(eval "cat '$fifo' | $fzf $FZF_COMPLETION_OPTS $1 -q '$cur'" | tr '\n' ' ')
+    selected=$(cat | $fzf $FZF_COMPLETION_OPTS $1 -q "$cur" | $post | tr '\n' ' ')
     selected=${selected% } # Strip trailing space not to repeat "-o nospace"
     tput rc
-    rm -f "$fifo"
 
     if [ -n "$selected" ]; then
       COMPREPLY=("$selected")
@@ -170,28 +184,23 @@ _fzf_complete() {
 }
 
 _fzf_path_completion() {
-  __fzf_generic_path_completion \
-    "-name .git -prune -o -name .svn -prune -o -type d -print -o -type f -print -o -type l -print" \
-    "-m" "" "$@"
+  __fzf_generic_path_completion _fzf_compgen_path "-m" "" "$@"
 }
 
+# Deprecated. No file only completion.
 _fzf_file_completion() {
-  __fzf_generic_path_completion \
-    "-name .git -prune -o -name .svn -prune -o -type f -print -o -type l -print" \
-    "-m" "" "$@"
+  _fzf_path_completion "$@"
 }
 
 _fzf_dir_completion() {
-  __fzf_generic_path_completion \
-    "-name .git -prune -o -name .svn -prune -o -type d -print" \
-    "" "/" "$@"
+  __fzf_generic_path_completion _fzf_compgen_dir "" "/" "$@"
 }
 
 _fzf_complete_kill() {
   [ -n "${COMP_WORDS[COMP_CWORD]}" ] && return 1
 
   local selected fzf
-  [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
+  [ "${FZF_TMUX:-1}" != 0 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
   tput sc
   selected=$(ps -ef | sed 1d | $fzf -m $FZF_COMPLETION_OPTS | awk '{print $2}' | tr '\n' ' ')
   tput rc
@@ -204,15 +213,16 @@ _fzf_complete_kill() {
 
 _fzf_complete_telnet() {
   _fzf_complete '+m' "$@" < <(
-    \grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' |
+    command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
 
 _fzf_complete_ssh() {
   _fzf_complete '+m' "$@" < <(
-    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i '^host' | \grep -v '*') \
-        <(\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0') |
+    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*') \
+        <(command grep -oE '^[^ ]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
+        <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
@@ -238,13 +248,12 @@ _fzf_complete_unalias() {
 # fzf options
 complete -o default -F _fzf_opts_completion fzf
 
-d_cmds="cd pushd rmdir"
-f_cmds="
-  awk cat diff diff3
-  emacs ex file ftp g++ gcc gvim head hg java
-  javac ld less more mvim patch perl python ruby
-  sed sftp sort source tail tee uniq vi view vim wc"
+d_cmds="${FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir}"
 a_cmds="
+  awk cat diff diff3
+  emacs emacsclient ex file ftp g++ gcc gvim head hg java
+  javac ld less more mvim nvim patch perl python ruby
+  sed sftp sort source tail tee uniq vi view vim wc xdg-open
   basename bunzip2 bzip2 chmod chown curl cp dirname du
   find git grep gunzip gzip hg jar
   ln ls mv open rm rsync scp
@@ -252,32 +261,44 @@ a_cmds="
 x_cmds="kill ssh telnet unset unalias export"
 
 # Preserve existing completion
-if [ "$_fzf_completion_loaded" != '0.9.12' ]; then
+if [ "$_fzf_completion_loaded" != '0.11.3' ]; then
   # Really wish I could use associative array but OSX comes with bash 3.2 :(
-  eval $(complete | \grep '\-F' | \grep -v _fzf_ |
-    \grep -E " ($(echo $d_cmds $f_cmds $a_cmds $x_cmds | sed 's/ /|/g' | sed 's/+/\\+/g'))$" | _fzf_orig_completion_filter)
-  export _fzf_completion_loaded=0.9.12
+  eval $(complete | command grep '\-F' | command grep -v _fzf_ |
+    command grep -E " ($(echo $d_cmds $a_cmds $x_cmds | sed 's/ /|/g' | sed 's/+/\\+/g'))$" | _fzf_orig_completion_filter)
+  export _fzf_completion_loaded=0.11.3
 fi
 
 if type _completion_loader > /dev/null 2>&1; then
   _fzf_completion_loader=1
 fi
 
-# Directory
-for cmd in $d_cmds; do
-  complete -F _fzf_dir_completion -o nospace -o plusdirs $cmd
-done
-
-# File
-for cmd in $f_cmds; do
-  complete -F _fzf_file_completion -o default -o bashdefault $cmd
-done
+_fzf_defc() {
+  local cmd func opts orig_var orig def
+  cmd="$1"
+  func="$2"
+  opts="$3"
+  orig_var="_fzf_orig_completion_$cmd"
+  orig="${!orig_var}"
+  if [ -n "$orig" ]; then
+    printf -v def "$orig" "$func"
+    eval "$def"
+  else
+    complete -F "$func" $opts "$cmd"
+  fi
+}
 
 # Anything
 for cmd in $a_cmds; do
-  complete -F _fzf_path_completion -o default -o bashdefault $cmd
+  _fzf_defc "$cmd" _fzf_path_completion "-o default -o bashdefault"
 done
 
+# Directory
+for cmd in $d_cmds; do
+  _fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o plusdirs"
+done
+
+unset _fzf_defc
+
 # Kill completion
 complete -F _fzf_complete_kill -o nospace -o default -o bashdefault kill
 
@@ -290,4 +311,4 @@ complete -F _fzf_complete_unset -o default -o bashdefault unset
 complete -F _fzf_complete_export -o default -o bashdefault export
 complete -F _fzf_complete_unalias -o default -o bashdefault unalias
 
-unset cmd d_cmds f_cmds a_cmds x_cmds
+unset cmd d_cmds a_cmds x_cmds

shell/completion.zsh

@@ -10,89 +10,110 @@
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+# To use custom commands instead of find, override _fzf_compgen_{path,dir}
+if ! declare -f _fzf_compgen_path > /dev/null; then
+  _fzf_compgen_path() {
+    echo "$1"
+    command find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+if ! declare -f _fzf_compgen_dir > /dev/null; then
+  _fzf_compgen_dir() {
+    command find -L "$1" \
+      -name .git -prune -o -name .svn -prune -o -type d \
+      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+  }
+fi
+
+###########################################################
+
 __fzf_generic_path_completion() {
-  local base lbuf find_opts fzf_opts suffix tail fzf dir leftover matches nnm
+  local base lbuf compgen fzf_opts suffix tail fzf dir leftover matches
   # (Q) flag removes a quoting level: "foo\ bar" => "foo bar"
   base=${(Q)1}
   lbuf=$2
-  find_opts=$3
+  compgen=$3
   fzf_opts=$4
   suffix=$5
   tail=$6
   [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
 
-  if ! setopt | grep nonomatch > /dev/null; then
-    nnm=1
-    setopt nonomatch
-  fi
+  setopt localoptions nonomatch
   dir="$base"
   while [ 1 ]; do
     if [ -z "$dir" -o -d ${~dir} ]; then
       leftover=${base/#"$dir"}
       leftover=${leftover/#\/}
-      [ "$dir" = './' ] && dir=''
+      [ -z "$dir" ] && dir='.'
+      [ "$dir" != "/" ] && dir="${dir/%\//}"
       dir=${~dir}
-      matches=$(\find -L $dir* ${=find_opts} 2> /dev/null | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
-        printf "%q$suffix " "$item"
+      matches=$(eval "$compgen $(printf %q "$dir")" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "$leftover" | while read item; do
+        echo -n "${(q)item}$suffix "
       done)
       matches=${matches% }
       if [ -n "$matches" ]; then
         LBUFFER="$lbuf$matches$tail"
       fi
       zle redisplay
+      typeset -f zle-line-init >/dev/null && zle zle-line-init
       break
     fi
     dir=$(dirname "$dir")
     dir=${dir%/}/
   done
-  [ -n "$nnm" ] && unsetopt nonomatch
 }
 
 _fzf_path_completion() {
-  __fzf_generic_path_completion "$1" "$2" \
-    "-name .git -prune -o -name .svn -prune -o -type d -print -o -type f -print -o -type l -print" \
+  __fzf_generic_path_completion "$1" "$2" _fzf_compgen_path \
     "-m" "" " "
 }
 
 _fzf_dir_completion() {
-  __fzf_generic_path_completion "$1" "$2" \
-    "-name .git -prune -o -name .svn -prune -o -type d -print" \
+  __fzf_generic_path_completion "$1" "$2" _fzf_compgen_dir \
     "" "/" ""
 }
 
 _fzf_feed_fifo() (
-  rm -f "$fifo"
-  mkfifo "$fifo"
-  cat <&0 > "$fifo" &
+  command rm -f "$1"
+  mkfifo "$1"
+  cat <&0 > "$1" &
 )
 
 _fzf_complete() {
-  local fifo fzf_opts lbuf fzf matches
+  local fifo fzf_opts lbuf fzf matches post
   fifo="${TMPDIR:-/tmp}/fzf-complete-fifo-$$"
   fzf_opts=$1
   lbuf=$2
+  post="${funcstack[2]}_post"
+  type $post > /dev/null 2>&1 || post=cat
+
   [ ${FZF_TMUX:-1} -eq 1 ] && fzf="fzf-tmux -d ${FZF_TMUX_HEIGHT:-40%}" || fzf="fzf"
 
   _fzf_feed_fifo "$fifo"
-  matches=$(cat "$fifo" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "${(Q)prefix}" | tr '\n' ' ')
+  matches=$(cat "$fifo" | ${=fzf} ${=FZF_COMPLETION_OPTS} ${=fzf_opts} -q "${(Q)prefix}" | $post | tr '\n' ' ')
   if [ -n "$matches" ]; then
     LBUFFER="$lbuf$matches"
   fi
   zle redisplay
-  rm -f "$fifo"
+  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  command rm -f "$fifo"
 }
 
 _fzf_complete_telnet() {
   _fzf_complete '+m' "$@" < <(
-    \grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0' |
+    command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
 
 _fzf_complete_ssh() {
   _fzf_complete '+m' "$@" < <(
-    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | \grep -i '^host' | \grep -v '*') \
-        <(\grep -v '^\s*\(#\|$\)' /etc/hosts | \grep -Fv '0.0.0.0') |
+    cat <(cat ~/.ssh/config /etc/ssh/ssh_config 2> /dev/null | command grep -i '^host' | command grep -v '*') \
+        <(command grep -oE '^[^ ]+' ~/.ssh/known_hosts | tr ',' '\n' | awk '{ print $1 " " $1 }') \
+        <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
         awk '{if (length($2) > 0) {print $2}}' | sort -u
   )
 }
@@ -116,17 +137,14 @@ _fzf_complete_unalias() {
 }
 
 fzf-completion() {
-  local tokens cmd prefix trigger tail fzf matches lbuf d_cmds sws
-  if setopt | grep shwordsplit > /dev/null; then
-    sws=1
-    unsetopt shwordsplit
-  fi
+  local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
+  setopt localoptions noshwordsplit noksh_arrays
 
   # http://zsh.sourceforge.net/FAQ/zshfaq03.html
   # http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
   tokens=(${(z)LBUFFER})
   if [ ${#tokens} -lt 1 ]; then
-    eval "zle ${fzf_default_completion:-expand-or-complete}"
+    zle ${fzf_default_completion:-expand-or-complete}
     return
   fi
 
@@ -145,9 +163,10 @@ fzf-completion() {
       LBUFFER="$LBUFFER$matches"
     fi
     zle redisplay
+    typeset -f zle-line-init >/dev/null && zle zle-line-init
   # Trigger sequence given
   elif [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then
-    d_cmds=(cd pushd rmdir)
+    d_cmds=(${=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]}}
@@ -161,14 +180,15 @@ fzf-completion() {
     fi
   # Fall back to default completion
   else
-    eval "zle ${fzf_default_completion:-expand-or-complete}"
+    zle ${fzf_default_completion:-expand-or-complete}
   fi
-  [ -n "$sws" ] && setopt shwordsplit
 }
 
-[ -z "$fzf_default_completion" ] &&
-  fzf_default_completion=$(bindkey '^I' | grep -v undefined-key | awk '{print $2}')
+[ -z "$fzf_default_completion" ] && {
+  binding=$(bindkey '^I')
+  [[ $binding =~ 'undefined-key' ]] || fzf_default_completion=$binding[(w)2]
+  unset binding
+}
 
 zle     -N   fzf-completion
 bindkey '^I' fzf-completion
-

shell/key-bindings.bash

@@ -1,11 +1,11 @@
 # Key bindings
 # ------------
 __fzf_select__() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command \\find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
-  eval "$cmd" | fzf -m | while read item; do
+  eval "$cmd | fzf -m $FZF_CTRL_T_OPTS" | while read -r item; do
     printf '%q ' "$item"
   done
   echo
@@ -14,7 +14,7 @@ __fzf_select__() {
 if [[ $- =~ i ]]; then
 
 __fzfcmd() {
-  [ ${FZF_TMUX:-1} -eq 1 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
+  [ "${FZF_TMUX:-1}" != 0 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
 }
 
 __fzf_select_tmux__() {
@@ -25,13 +25,25 @@ __fzf_select_tmux__() {
   else
     height="-l $height"
   fi
-  tmux split-window $height "cd $(printf %q "$PWD"); FZF_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") bash -c 'source ~/.fzf.bash; tmux send-keys -t $TMUX_PANE \"\$(__fzf_select__)\"'"
+
+  tmux split-window $height "cd $(printf %q "$PWD"); FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS") PATH=$(printf %q "$PATH") FZF_CTRL_T_COMMAND=$(printf %q "$FZF_CTRL_T_COMMAND") FZF_CTRL_T_OPTS=$(printf %q "$FZF_CTRL_T_OPTS") bash -c 'source \"${BASH_SOURCE[0]}\"; RESULT=\"\$(__fzf_select__)\"; tmux setb -b fzf \"\$RESULT\" \\; pasteb -b fzf -t $TMUX_PANE \\; deleteb -b fzf || tmux send-keys -t $TMUX_PANE \"\$RESULT\"'"
+}
+
+fzf-file-widget() {
+  if __fzf_use_tmux__; then
+    __fzf_select_tmux__
+  else
+    local selected="$(__fzf_select__)"
+    READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$selected${READLINE_LINE:$READLINE_POINT}"
+    READLINE_POINT=$(( READLINE_POINT + ${#selected} ))
+  fi
 }
 
 __fzf_cd__() {
-  local dir
-  dir=$(command \find -L ${1:-.} \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-    -o -type d -print 2> /dev/null | sed 1d | cut -b3- | $(__fzfcmd) +m) && printf 'cd %q' "$dir"
+  local cmd dir
+  cmd="${FZF_ALT_C_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+    -o -type d -print 2> /dev/null | sed 1d | cut -b3-"}"
+  dir=$(eval "$cmd | $(__fzfcmd) +m $FZF_ALT_C_OPTS") && printf 'cd %q' "$dir"
 }
 
 __fzf_history__() (
@@ -39,8 +51,8 @@ __fzf_history__() (
   shopt -u nocaseglob nocasematch
   line=$(
     HISTTIMEFORMAT= history |
-    $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r |
-    \grep '^ *[0-9]') &&
+    eval "$(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS" |
+    command grep '^ *[0-9]') &&
     if [[ $- =~ H ]]; then
       sed 's/^ *\([0-9]*\)\** .*/!\1/' <<< "$line"
     else
@@ -48,49 +60,66 @@ __fzf_history__() (
     fi
 )
 
-__use_tmux=0
-[ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ] && __use_tmux=1
+__fzf_use_tmux__() {
+  [ -n "$TMUX_PANE" ] && [ "${FZF_TMUX:-1}" != 0 ] && [ ${LINES:-40} -gt 15 ]
+}
 
-if [ -z "$(set -o | \grep '^vi.*on')" ]; then
+[ $BASH_VERSINFO -gt 3 ] && __use_bind_x=1 || __use_bind_x=0
+__fzf_use_tmux__ && __use_tmux=1 || __use_tmux=0
+
+if [[ ! -o vi ]]; then
   # Required to refresh the prompt after fzf
   bind '"\er": redraw-current-line'
   bind '"\e^": history-expand-line'
 
   # CTRL-T - Paste the selected file path into the command line
-  if [ $__use_tmux -eq 1 ]; then
+  if [ $__use_bind_x -eq 1 ]; then
+    bind -x '"\C-t": "fzf-file-widget"'
+  elif [ $__use_tmux -eq 1 ]; then
     bind '"\C-t": " \C-u \C-a\C-k$(__fzf_select_tmux__)\e\C-e\C-y\C-a\C-d\C-y\ey\C-h"'
   else
     bind '"\C-t": " \C-u \C-a\C-k$(__fzf_select__)\e\C-e\C-y\C-a\C-y\ey\C-h\C-e\er \C-h"'
   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`__fzf_history__`\e\C-e\e^\er"'
 
   # ALT-C - cd into the selected directory
-  bind '"\ec": " \C-e\C-u$(__fzf_cd__)\e\C-e\er\C-m"'
+  bind '"\ec": " \C-e\C-u`__fzf_cd__`\e\C-e\er\C-m"'
 else
+  # We'd usually use "\e" to enter vi-movement-mode so we can do our magic,
+  # but this incurs a very noticeable delay of a half second or so,
+  # because many other commands start with "\e".
+  # Instead, we bind an unused key, "\C-x\C-a",
+  # to also enter vi-movement-mode,
+  # and then use that thereafter.
+  # (We imagine that "\C-x\C-a" is relatively unlikely to be in use.)
+  bind '"\C-x\C-a": vi-movement-mode'
+
   bind '"\C-x\C-e": shell-expand-line'
   bind '"\C-x\C-r": redraw-current-line'
   bind '"\C-x^": history-expand-line'
 
   # CTRL-T - Paste the selected file path into the command line
   # - FIXME: Selected items are attached to the end regardless of cursor position
-  if [ $__use_tmux -eq 1 ]; then
-    bind '"\C-t": "\e$a \eddi$(__fzf_select_tmux__)\C-x\C-e\e0P$xa"'
+  if [ $__use_bind_x -eq 1 ]; then
+    bind -x '"\C-t": "fzf-file-widget"'
+  elif [ $__use_tmux -eq 1 ]; then
+    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi$(__fzf_select_tmux__)\C-x\C-e\C-x\C-a0P$xa"'
   else
-    bind '"\C-t": "\e$a \eddi$(__fzf_select__)\C-x\C-e\e0Px$a \C-x\C-r\exa "'
+    bind '"\C-t": "\C-x\C-a$a \C-x\C-addi$(__fzf_select__)\C-x\C-e\C-x\C-a0Px$a \C-x\C-r\C-x\C-axa "'
   fi
   bind -m vi-command '"\C-t": "i\C-t"'
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind '"\C-r": "\eddi$(__fzf_history__)\C-x\C-e\C-x^\e$a\C-x\C-r"'
+  bind '"\C-r": "\C-x\C-addi$(__fzf_history__)\C-x\C-e\C-x^\C-x\C-a$a\C-x\C-r"'
   bind -m vi-command '"\C-r": "i\C-r"'
 
   # ALT-C - cd into the selected directory
-  bind '"\ec": "\eddi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
-  bind -m vi-command '"\ec": "i\ec"'
+  bind '"\ec": "\C-x\C-addi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
+  bind -m vi-command '"\ec": "ddi$(__fzf_cd__)\C-x\C-e\C-x\C-r\C-m"'
 fi
 
-unset __use_tmux
+unset -v __use_tmux __use_bind_x
 
 fi

shell/key-bindings.fish

@@ -13,29 +13,31 @@ function fzf_key_bindings
     end
   end
 
-  function __fzf_ctrl_t
+  function fzf-file-widget
     set -q FZF_CTRL_T_COMMAND; or set -l FZF_CTRL_T_COMMAND "
     command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
       -o -type f -print \
       -o -type d -print \
       -o -type l -print 2> /dev/null | sed 1d | cut -b3-"
-    eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)" -m > $TMPDIR/fzf.result"
-    and commandline -i (cat $TMPDIR/fzf.result | __fzf_escape)
+    eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)" -m $FZF_CTRL_T_OPTS > $TMPDIR/fzf.result"
+    and for i in (seq 20); commandline -i (cat $TMPDIR/fzf.result | __fzf_escape) 2> /dev/null; and break; sleep 0.1; end
     commandline -f repaint
     rm -f $TMPDIR/fzf.result
   end
 
-  function __fzf_ctrl_r
-    history | eval (__fzfcmd) +s +m --tiebreak=index --toggle-sort=ctrl-r > $TMPDIR/fzf.result
+  function fzf-history-widget
+    history | eval (__fzfcmd) +s +m --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS > $TMPDIR/fzf.result
     and commandline (cat $TMPDIR/fzf.result)
     commandline -f repaint
     rm -f $TMPDIR/fzf.result
   end
 
-  function __fzf_alt_c
+  function fzf-cd-widget
+    set -q FZF_ALT_C_COMMAND; or set -l FZF_ALT_C_COMMAND "
+    command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+      -o -type d -print 2> /dev/null | sed 1d | cut -b3-"
     # Fish hangs if the command before pipe redirects (2> /dev/null)
-    command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) \
-      -prune -o -type d -print 2> /dev/null | sed 1d | cut -b3- | eval (__fzfcmd) +m > $TMPDIR/fzf.result
+    eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)" +m $FZF_ALT_C_OPTS > $TMPDIR/fzf.result"
     [ (cat $TMPDIR/fzf.result | wc -l) -gt 0 ]
     and cd (cat $TMPDIR/fzf.result)
     commandline -f repaint
@@ -56,14 +58,14 @@ function fzf_key_bindings
     end
   end
 
-  bind \ct '__fzf_ctrl_t'
-  bind \cr '__fzf_ctrl_r'
-  bind \ec '__fzf_alt_c'
+  bind \ct fzf-file-widget
+  bind \cr fzf-history-widget
+  bind \ec fzf-cd-widget
 
   if bind -M insert > /dev/null 2>&1
-    bind -M insert \ct '__fzf_ctrl_t'
-    bind -M insert \cr '__fzf_ctrl_r'
-    bind -M insert \ec '__fzf_alt_c'
+    bind -M insert \ct fzf-file-widget
+    bind -M insert \cr fzf-history-widget
+    bind -M insert \ec fzf-cd-widget
   end
 end
 

shell/key-bindings.zsh

@@ -4,14 +4,17 @@ if [[ $- == *i* ]]; then
 
 # CTRL-T - Paste the selected file path(s) into the command line
 __fsel() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command \\find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
-  eval "$cmd" | $(__fzfcmd) -m | while read item; do
-    printf '%q ' "$item"
+  setopt localoptions pipefail 2> /dev/null
+  eval "$cmd | $(__fzfcmd) -m $FZF_CTRL_T_OPTS" | while read item; do
+    echo -n "${(q)item} "
   done
+  local ret=$?
   echo
+  return $ret
 }
 
 __fzfcmd() {
@@ -20,30 +23,43 @@ __fzfcmd() {
 
 fzf-file-widget() {
   LBUFFER="${LBUFFER}$(__fsel)"
+  local ret=$?
   zle redisplay
+  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  return $ret
 }
 zle     -N   fzf-file-widget
 bindkey '^T' fzf-file-widget
 
 # ALT-C - cd into the selected directory
 fzf-cd-widget() {
-  cd "${$(command \find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
-    -o -type d -print 2> /dev/null | sed 1d | cut -b3- | $(__fzfcmd) +m):-.}"
+  local cmd="${FZF_ALT_C_COMMAND:-"command find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
+    -o -type d -print 2> /dev/null | sed 1d | cut -b3-"}"
+  setopt localoptions pipefail 2> /dev/null
+  cd "${$(eval "$cmd | $(__fzfcmd) +m $FZF_ALT_C_OPTS"):-.}"
+  local ret=$?
   zle reset-prompt
+  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  return $ret
 }
 zle     -N    fzf-cd-widget
 bindkey '\ec' fzf-cd-widget
 
 # CTRL-R - Paste the selected command from history into the command line
 fzf-history-widget() {
-  local selected restore_no_bang_hist
-  if selected=( $(fc -l 1 | $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r -q "$LBUFFER") ); then
+  local selected num
+  setopt localoptions noglobsubst pipefail 2> /dev/null
+  selected=( $(fc -l 1 | eval "$(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r $FZF_CTRL_R_OPTS -q ${(q)LBUFFER}") )
+  local ret=$?
+  if [ -n "$selected" ]; then
     num=$selected[1]
     if [ -n "$num" ]; then
       zle vi-fetch-history -n $num
     fi
   fi
   zle redisplay
+  typeset -f zle-line-init >/dev/null && zle zle-line-init
+  return $ret
 }
 zle     -N   fzf-history-widget
 bindkey '^R' fzf-history-widget

src/Dockerfile.android

@@ -0,0 +1,40 @@
+FROM ubuntu:14.04
+MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
+
+# apt-get
+RUN apt-get update && apt-get -y upgrade && \
+    apt-get install -y --force-yes git curl build-essential
+
+# Install Go 1.4
+RUN cd / && curl \
+    https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
+    tar -xz && mv go go1.4 && \
+    sed -i 's@#define PTHREAD_KEYS_MAX 128@@' /go1.4/src/runtime/cgo/gcc_android_arm.c
+
+ENV GOROOT /go1.4
+ENV PATH /go1.4/bin:$PATH
+
+RUN cd / && \
+    curl -O http://dl.google.com/android/ndk/android-ndk-r10e-linux-x86_64.bin && \
+    chmod 755 /android-ndk* && /android-ndk-r10e-linux-x86_64.bin && \
+    mv android-ndk-r10e /android-ndk
+
+RUN cd /android-ndk && bash ./build/tools/make-standalone-toolchain.sh --platform=android-21 --install-dir=/ndk --arch=arm
+
+ENV NDK_CC /ndk/bin/arm-linux-androideabi-gcc
+
+RUN cd $GOROOT/src && \
+    CC_FOR_TARGET=$NDK_CC GOOS=android GOARCH=arm GOARM=7 ./make.bash
+
+RUN cd / && curl \
+    http://ftp.gnu.org/gnu/ncurses/ncurses-5.9.tar.gz | \
+    tar -xz && cd /ncurses-5.9 && \
+    ./configure CC=$NDK_CC CFLAGS="-fPIE -march=armv7-a -mfpu=neon -mhard-float -Wl,--no-warn-mismatch" LDFLAGS="-march=armv7-a -Wl,--no-warn-mismatch" --host=arm-linux --enable-overwrite --enable-const --without-cxx-binding  --without-shared --without-debug --enable-widec --enable-ext-colors --enable-ext-mouse --enable-pc-files --with-pkg-config-libdir=$PKG_CONFIG_LIBDIR --without-manpages --without-ada --disable-shared --without-tests --prefix=/ndk/sysroot/usr --with-default-terminfo-dirs=/usr/share/terminfo --with-terminfo-dirs=/usr/share/terminfo ac_cv_header_locale_h=n ac_cv_func_getpwent=no ac_cv_func_getpwnam=no ac_cv_func_getpwuid=no && \
+    sed -i 's@#define HAVE_LOCALE_H 1@/* #undef HAVE_LOCALE_H */@' include/ncurses_cfg.h && \
+    make && \
+    sed -i '0,/echo.*/{s/echo.*/exit 0/}' misc/run_tic.sh && \
+    make install && \
+    mv /ndk/sysroot/usr/lib/libncursesw.a /ndk/sysroot/usr/lib/libncurses.a
+
+# Default CMD
+CMD cd /fzf/src && /bin/bash

src/Dockerfile.arch

@@ -10,7 +10,6 @@ RUN cd / && curl \
     https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
     tar -xz && mv go go1.4
 
-ENV GOPATH /go
 ENV GOROOT /go1.4
 ENV PATH /go1.4/bin:$PATH
 
@@ -20,9 +19,6 @@ RUN echo '[multilib]' >> /etc/pacman.conf && \
     pacman-db-upgrade && yes | pacman -Sy gcc-multilib lib32-ncurses && \
     cd $GOROOT/src && GOARCH=386 ./make.bash
 
-# Volume
-VOLUME /go
-
 # Default CMD
-CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash
+CMD cd /fzf/src && /bin/bash
 

src/Dockerfile.centos

@@ -11,16 +11,22 @@ RUN cd / && curl \
     https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
     tar -xz && mv go go1.4
 
-ENV GOPATH /go
-ENV GOROOT /go1.4
-ENV PATH /go1.4/bin:$PATH
+# Install Go 1.5
+RUN cd / && curl \
+    https://storage.googleapis.com/golang/go1.5.3.linux-amd64.tar.gz | \
+    tar -xz && mv go go1.5
+
+# Install RPMs for building static 32-bit binary
+RUN curl ftp://ftp.pbone.net/mirror/ftp.centos.org/6.7/os/i386/Packages/ncurses-static-5.7-4.20090207.el6.i686.rpm -o rpm && rpm -i rpm && \
+    curl ftp://ftp.pbone.net/mirror/ftp.centos.org/6.7/os/i386/Packages/gpm-static-1.20.6-12.el6.i686.rpm -o rpm && rpm -i rpm
+
+ENV GOROOT_BOOTSTRAP /go1.4
+ENV GOROOT /go1.5
+ENV PATH /go1.5/bin:$PATH
 
 # For i386 build
 RUN cd $GOROOT/src && GOARCH=386 ./make.bash
 
-# Volume
-VOLUME /go
-
 # Default CMD
-CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash
+CMD cd /fzf/src && /bin/bash
 

src/Dockerfile.ubuntu

@@ -10,7 +10,6 @@ RUN cd / && curl \
     https://storage.googleapis.com/golang/go1.4.2.linux-amd64.tar.gz | \
     tar -xz && mv go go1.4
 
-ENV GOPATH /go
 ENV GOROOT /go1.4
 ENV PATH /go1.4/bin:$PATH
 
@@ -18,9 +17,6 @@ ENV PATH /go1.4/bin:$PATH
 RUN apt-get install -y lib32ncurses5-dev && \
     cd $GOROOT/src && GOARCH=386 ./make.bash
 
-# Volume
-VOLUME /go
-
 # Default CMD
-CMD cd /go/src/github.com/junegunn/fzf/src && /bin/bash
+CMD cd /fzf/src && /bin/bash
 

src/LICENSE

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

src/Makefile

@@ -1,57 +1,76 @@
-ifndef GOPATH
-$(error GOPATH is undefined)
-endif
-
+ifndef GOOS
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Darwin)
 	GOOS := darwin
 else ifeq ($(UNAME_S),Linux)
 	GOOS := linux
 endif
+endif
 
-ifneq ($(shell uname -m),x86_64)
+SOURCES     := $(wildcard *.go */*.go)
+ROOTDIR     := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))
+BINDIR      := $(shell dirname $(ROOTDIR))/bin
+GOPATH      := $(shell dirname $(ROOTDIR))/gopath
+SRCDIR      := $(GOPATH)/src/github.com/junegunn/fzf/src
+DOCKEROPTS  := -i -t -v $(ROOTDIR):/fzf/src
+BINARY32    := fzf-$(GOOS)_386
+BINARY64    := fzf-$(GOOS)_amd64
+BINARYARM7  := fzf-$(GOOS)_arm7
+VERSION     := $(shell awk -F= '/version =/ {print $$2}' constants.go | tr -d "\" ")
+RELEASE32   := fzf-$(VERSION)-$(GOOS)_386
+RELEASE64   := fzf-$(VERSION)-$(GOOS)_amd64
+RELEASEARM7 := fzf-$(VERSION)-$(GOOS)_arm7
+export GOPATH
+
+UNAME_M := $(shell uname -m)
+ifeq ($(UNAME_M),x86_64)
+	BINARY := $(BINARY64)
+else ifeq ($(UNAME_M),i686)
+	BINARY := $(BINARY32)
+else
 $(error "Build on $(UNAME_M) is not supported, yet.")
 endif
 
-SOURCES   := $(wildcard *.go */*.go)
-BINDIR    := ../bin
+all: fzf/$(BINARY)
 
-BINARY32  := fzf-$(GOOS)_386
-BINARY64  := fzf-$(GOOS)_amd64
-VERSION    = $(shell fzf/$(BINARY64) --version)
-RELEASE32  = fzf-$(VERSION)-$(GOOS)_386
-RELEASE64  = fzf-$(VERSION)-$(GOOS)_amd64
-
-all: release
-
-release: build
+release: test fzf/$(BINARY32) fzf/$(BINARY64)
 	-cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
 	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
 	rm -f $(RELEASE32) $(RELEASE64)
 
-build: test fzf/$(BINARY32) fzf/$(BINARY64)
+$(SRCDIR):
+	mkdir -p $(shell dirname $(SRCDIR))
+	ln -s $(ROOTDIR) $(SRCDIR)
 
-test:
-	go get
-	go test -v ./...
+deps: $(SRCDIR) $(SOURCES)
+	cd $(SRCDIR) && go get
+
+android-build: $(SRCDIR)
+	cd $(SRCDIR) && GOARCH=arm GOARM=7 CGO_ENABLED=1 go get
+	cd $(SRCDIR)/fzf && GOARCH=arm GOARM=7 CGO_ENABLED=1 go build -a -ldflags="-w -extldflags=-pie" -o $(BINARYARM7)
+	cd $(SRCDIR)/fzf && cp $(BINARYARM7) $(RELEASEARM7) && tar -czf $(RELEASEARM7).tgz $(RELEASEARM7) && \
+	rm -f $(RELEASEARM7)
+
+test: deps
+	SHELL=/bin/sh go test -v ./...
 
 install: $(BINDIR)/fzf
 
 uninstall:
-	rm -f $(BINDIR)/fzf $(BINDIR)/$(BINARY64)
+	rm -f $(BINDIR)/fzf $(BINDIR)/$(BINARY)
 
 clean:
 	cd fzf && rm -f fzf-*
 
-fzf/$(BINARY32): $(SOURCES)
-	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -a -o $(BINARY32)
+fzf/$(BINARY32): deps
+	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -a -ldflags -w -tags "$(TAGS)" -o $(BINARY32)
 
-fzf/$(BINARY64): $(SOURCES)
-	cd fzf && go build -a -tags "$(TAGS)" -o $(BINARY64)
+fzf/$(BINARY64): deps
+	cd fzf && go build -a -ldflags -w -tags "$(TAGS)" -o $(BINARY64)
 
-$(BINDIR)/fzf: fzf/$(BINARY64) | $(BINDIR)
-	cp -f fzf/$(BINARY64) $(BINDIR)
-	cd $(BINDIR) && ln -sf $(BINARY64) fzf
+$(BINDIR)/fzf: fzf/$(BINARY) | $(BINDIR)
+	cp -f fzf/$(BINARY) $(BINDIR)
+	cd $(BINDIR) && ln -sf $(BINARY) fzf
 
 $(BINDIR):
 	mkdir -p $@
@@ -65,21 +84,33 @@ docker-ubuntu:
 docker-centos:
 	docker build -t junegunn/centos-sandbox - < Dockerfile.centos
 
+docker-android:
+	docker build -t junegunn/android-sandbox - < Dockerfile.android
+
 arch: docker-arch
-	docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
-		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
+	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
 
 ubuntu: docker-ubuntu
-	docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
-		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
+	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
 
 centos: docker-centos
-	docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
-		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
+	docker run $(DOCKEROPTS) junegunn/$@-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
 
 linux: docker-centos
-	docker run -i -t -v $(GOPATH):/go junegunn/centos-sandbox \
-		/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make TAGS=static'
+	docker run $(DOCKEROPTS) junegunn/centos-sandbox \
+		/bin/bash -ci 'cd /fzf/src; make TAGS=static release'
 
-.PHONY: all build release test install uninstall clean docker \
-	linux arch ubuntu centos docker-arch docker-ubuntu docker-centos
+ubuntu-android: docker-android
+	docker run $(DOCKEROPTS) junegunn/android-sandbox \
+		sh -c 'cd /fzf/src; /bin/bash'
+
+android: docker-android
+	docker run $(DOCKEROPTS) junegunn/android-sandbox \
+		/bin/bash -ci 'cd /fzf/src; GOOS=android make android-build'
+
+.PHONY: all deps release test install uninstall clean \
+	linux arch ubuntu centos docker-arch docker-ubuntu docker-centos \
+	android-build docker-android ubuntu-android android

src/README.md

@@ -79,7 +79,7 @@ Build
 
 ```sh
 # Build fzf executables and tarballs
-make
+make release
 
 # Install the executable to ../bin directory
 make install

src/algo/algo.go

@@ -22,10 +22,94 @@ func runeAt(runes []rune, index int, max int, forward bool) rune {
 	return runes[max-index-1]
 }
 
+// Result conatins the results of running a match function.
+type Result struct {
+	Start int32
+	End   int32
+
+	// Items are basically sorted by the lengths of matched substrings.
+	// But we slightly adjust the score with bonus for better results.
+	Bonus int32
+}
+
+type charClass int
+
+const (
+	charNonWord charClass = iota
+	charLower
+	charUpper
+	charLetter
+	charNumber
+)
+
+func evaluateBonus(caseSensitive bool, runes []rune, pattern []rune, sidx int, eidx int) int32 {
+	var bonus int32
+	pidx := 0
+	lenPattern := len(pattern)
+	consecutive := false
+	prevClass := charNonWord
+	for index := 0; index < eidx; index++ {
+		char := runes[index]
+		var class charClass
+		if unicode.IsLower(char) {
+			class = charLower
+		} else if unicode.IsUpper(char) {
+			class = charUpper
+		} else if unicode.IsLetter(char) {
+			class = charLetter
+		} else if unicode.IsNumber(char) {
+			class = charNumber
+		} else {
+			class = charNonWord
+		}
+
+		var point int32
+		if prevClass == charNonWord && class != charNonWord {
+			// Word boundary
+			point = 2
+		} else if prevClass == charLower && class == charUpper ||
+			prevClass != charNumber && class == charNumber {
+			// camelCase letter123
+			point = 1
+		}
+		prevClass = class
+
+		if index >= sidx {
+			if !caseSensitive {
+				if char >= 'A' && char <= 'Z' {
+					char += 32
+				} else if char > unicode.MaxASCII {
+					char = unicode.To(unicode.LowerCase, char)
+				}
+			}
+			pchar := pattern[pidx]
+			if pchar == char {
+				// Boost bonus for the first character in the pattern
+				if pidx == 0 {
+					point *= 2
+				}
+				// Bonus to consecutive matching chars
+				if consecutive {
+					point++
+				}
+				bonus += point
+
+				if pidx++; pidx == lenPattern {
+					break
+				}
+				consecutive = true
+			} else {
+				consecutive = false
+			}
+		}
+	}
+	return bonus
+}
+
 // FuzzyMatch performs fuzzy-match
-func FuzzyMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
+func FuzzyMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
 	if len(pattern) == 0 {
-		return 0, 0
+		return Result{0, 0, 0}
 	}
 
 	// 0. (FIXME) How to find the shortest match?
@@ -90,12 +174,17 @@ func FuzzyMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune)
 				}
 			}
 		}
-		if forward {
-			return sidx, eidx
+
+		// Calculate the bonus. This can't be done at the same time as the
+		// pattern scan above because 'forward' may be false.
+		if !forward {
+			sidx, eidx = lenRunes-eidx, lenRunes-sidx
 		}
-		return lenRunes - eidx, lenRunes - sidx
+
+		return Result{int32(sidx), int32(eidx),
+			evaluateBonus(caseSensitive, runes, pattern, sidx, eidx)}
 	}
-	return -1, -1
+	return Result{-1, -1, 0}
 }
 
 // ExactMatchNaive is a basic string searching algorithm that handles case
@@ -105,16 +194,16 @@ func FuzzyMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune)
 //
 // We might try to implement better algorithms in the future:
 // http://en.wikipedia.org/wiki/String_searching_algorithm
-func ExactMatchNaive(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
+func ExactMatchNaive(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
 	if len(pattern) == 0 {
-		return 0, 0
+		return Result{0, 0, 0}
 	}
 
 	lenRunes := len(runes)
 	lenPattern := len(pattern)
 
 	if lenRunes < lenPattern {
-		return -1, -1
+		return Result{-1, -1, 0}
 	}
 
 	pidx := 0
@@ -131,23 +220,29 @@ func ExactMatchNaive(caseSensitive bool, forward bool, runes []rune, pattern []r
 		if pchar == char {
 			pidx++
 			if pidx == lenPattern {
+				var sidx, eidx int
 				if forward {
-					return index - lenPattern + 1, index + 1
+					sidx = index - lenPattern + 1
+					eidx = index + 1
+				} else {
+					sidx = lenRunes - (index + 1)
+					eidx = lenRunes - (index - lenPattern + 1)
 				}
-				return lenRunes - (index + 1), lenRunes - (index - lenPattern + 1)
+				return Result{int32(sidx), int32(eidx),
+					evaluateBonus(caseSensitive, runes, pattern, sidx, eidx)}
 			}
 		} else {
 			index -= pidx
 			pidx = 0
 		}
 	}
-	return -1, -1
+	return Result{-1, -1, 0}
 }
 
 // PrefixMatch performs prefix-match
-func PrefixMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
+func PrefixMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
 	if len(runes) < len(pattern) {
-		return -1, -1
+		return Result{-1, -1, 0}
 	}
 
 	for index, r := range pattern {
@@ -156,19 +251,21 @@ func PrefixMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune)
 			char = unicode.ToLower(char)
 		}
 		if char != r {
-			return -1, -1
+			return Result{-1, -1, 0}
 		}
 	}
-	return 0, len(pattern)
+	lenPattern := len(pattern)
+	return Result{0, int32(lenPattern),
+		evaluateBonus(caseSensitive, runes, pattern, 0, lenPattern)}
 }
 
 // SuffixMatch performs suffix-match
-func SuffixMatch(caseSensitive bool, forward bool, input []rune, pattern []rune) (int, int) {
+func SuffixMatch(caseSensitive bool, forward bool, input []rune, pattern []rune) Result {
 	runes := util.TrimRight(input)
 	trimmedLen := len(runes)
 	diff := trimmedLen - len(pattern)
 	if diff < 0 {
-		return -1, -1
+		return Result{-1, -1, 0}
 	}
 
 	for index, r := range pattern {
@@ -177,23 +274,28 @@ func SuffixMatch(caseSensitive bool, forward bool, input []rune, pattern []rune)
 			char = unicode.ToLower(char)
 		}
 		if char != r {
-			return -1, -1
+			return Result{-1, -1, 0}
 		}
 	}
-	return trimmedLen - len(pattern), trimmedLen
+	lenPattern := len(pattern)
+	sidx := trimmedLen - lenPattern
+	eidx := trimmedLen
+	return Result{int32(sidx), int32(eidx),
+		evaluateBonus(caseSensitive, runes, pattern, sidx, eidx)}
 }
 
 // EqualMatch performs equal-match
-func EqualMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
+func EqualMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) Result {
+	// Note: EqualMatch always return a zero bonus.
 	if len(runes) != len(pattern) {
-		return -1, -1
+		return Result{-1, -1, 0}
 	}
 	runesStr := string(runes)
 	if !caseSensitive {
 		runesStr = strings.ToLower(runesStr)
 	}
 	if runesStr == string(pattern) {
-		return 0, len(pattern)
+		return Result{0, int32(len(pattern)), 0}
 	}
-	return -1, -1
+	return Result{-1, -1, 0}
 }

src/algo/algo_test.go

@@ -5,65 +5,91 @@ import (
 	"testing"
 )
 
-func assertMatch(t *testing.T, fun func(bool, bool, []rune, []rune) (int, int), caseSensitive bool, forward bool, input string, pattern string, sidx int, eidx int) {
+func assertMatch(t *testing.T, fun func(bool, bool, []rune, []rune) Result, caseSensitive, forward bool, input, pattern string, sidx int32, eidx int32, bonus int32) {
 	if !caseSensitive {
 		pattern = strings.ToLower(pattern)
 	}
-	s, e := fun(caseSensitive, forward, []rune(input), []rune(pattern))
-	if s != sidx {
-		t.Errorf("Invalid start index: %d (expected: %d, %s / %s)", s, sidx, input, pattern)
+	res := fun(caseSensitive, forward, []rune(input), []rune(pattern))
+	if res.Start != sidx {
+		t.Errorf("Invalid start index: %d (expected: %d, %s / %s)", res.Start, sidx, input, pattern)
 	}
-	if e != eidx {
-		t.Errorf("Invalid end index: %d (expected: %d, %s / %s)", e, eidx, input, pattern)
+	if res.End != eidx {
+		t.Errorf("Invalid end index: %d (expected: %d, %s / %s)", res.End, eidx, input, pattern)
+	}
+	if res.Bonus != bonus {
+		t.Errorf("Invalid bonus: %d (expected: %d, %s / %s)", res.Bonus, bonus, input, pattern)
 	}
 }
 
 func TestFuzzyMatch(t *testing.T) {
-	assertMatch(t, FuzzyMatch, false, true, "fooBarbaz", "oBZ", 2, 9)
-	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBZ", -1, -1)
-	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBz", 2, 9)
-	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "fooBarbazz", -1, -1)
+	assertMatch(t, FuzzyMatch, false, true, "fooBarbaz", "oBZ", 2, 9, 2)
+	assertMatch(t, FuzzyMatch, false, true, "foo bar baz", "fbb", 0, 9, 8)
+	assertMatch(t, FuzzyMatch, false, true, "/AutomatorDocument.icns", "rdoc", 9, 13, 4)
+	assertMatch(t, FuzzyMatch, false, true, "/man1/zshcompctl.1", "zshc", 6, 10, 7)
+	assertMatch(t, FuzzyMatch, false, true, "/.oh-my-zsh/cache", "zshc", 8, 13, 8)
+	assertMatch(t, FuzzyMatch, false, true, "ab0123 456", "12356", 3, 10, 3)
+	assertMatch(t, FuzzyMatch, false, true, "abc123 456", "12356", 3, 10, 5)
+
+	assertMatch(t, FuzzyMatch, false, true, "foo/bar/baz", "fbb", 0, 9, 8)
+	assertMatch(t, FuzzyMatch, false, true, "fooBarBaz", "fbb", 0, 7, 6)
+	assertMatch(t, FuzzyMatch, false, true, "foo barbaz", "fbb", 0, 8, 6)
+	assertMatch(t, FuzzyMatch, false, true, "fooBar Baz", "foob", 0, 4, 8)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBZ", -1, -1, 0)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBz", 2, 9, 2)
+	assertMatch(t, FuzzyMatch, true, true, "Foo Bar Baz", "fbb", -1, -1, 0)
+	assertMatch(t, FuzzyMatch, true, true, "Foo/Bar/Baz", "FBB", 0, 9, 8)
+	assertMatch(t, FuzzyMatch, true, true, "FooBarBaz", "FBB", 0, 7, 6)
+	assertMatch(t, FuzzyMatch, true, true, "foo BarBaz", "fBB", 0, 8, 7)
+	assertMatch(t, FuzzyMatch, true, true, "FooBar Baz", "FooB", 0, 4, 8)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "fooBarbazz", -1, -1, 0)
 }
 
 func TestFuzzyMatchBackward(t *testing.T) {
-	assertMatch(t, FuzzyMatch, false, true, "foobar fb", "fb", 0, 4)
-	assertMatch(t, FuzzyMatch, false, false, "foobar fb", "fb", 7, 9)
+	assertMatch(t, FuzzyMatch, false, true, "foobar fb", "fb", 0, 4, 4)
+	assertMatch(t, FuzzyMatch, false, false, "foobar fb", "fb", 7, 9, 5)
 }
 
 func TestExactMatchNaive(t *testing.T) {
 	for _, dir := range []bool{true, false} {
-		assertMatch(t, ExactMatchNaive, false, dir, "fooBarbaz", "oBA", 2, 5)
-		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "oBA", -1, -1)
-		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "fooBarbazz", -1, -1)
+		assertMatch(t, ExactMatchNaive, false, dir, "fooBarbaz", "oBA", 2, 5, 3)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "oBA", -1, -1, 0)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "fooBarbazz", -1, -1, 0)
+
+		assertMatch(t, ExactMatchNaive, false, dir, "/AutomatorDocument.icns", "rdoc", 9, 13, 4)
+		assertMatch(t, ExactMatchNaive, false, dir, "/man1/zshcompctl.1", "zshc", 6, 10, 7)
+		assertMatch(t, ExactMatchNaive, false, dir, "/.oh-my-zsh/cache", "zsh/c", 8, 13, 10)
 	}
 }
 
 func TestExactMatchNaiveBackward(t *testing.T) {
-	assertMatch(t, FuzzyMatch, false, true, "foobar foob", "oo", 1, 3)
-	assertMatch(t, FuzzyMatch, false, false, "foobar foob", "oo", 8, 10)
+	assertMatch(t, ExactMatchNaive, false, true, "foobar foob", "oo", 1, 3, 1)
+	assertMatch(t, ExactMatchNaive, false, false, "foobar foob", "oo", 8, 10, 1)
 }
 
 func TestPrefixMatch(t *testing.T) {
 	for _, dir := range []bool{true, false} {
-		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3)
-		assertMatch(t, PrefixMatch, true, dir, "fooBarbaz", "Foo", -1, -1)
-		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "baz", -1, -1)
+		assertMatch(t, PrefixMatch, true, dir, "fooBarbaz", "Foo", -1, -1, 0)
+		assertMatch(t, PrefixMatch, false, dir, "fooBarBaz", "baz", -1, -1, 0)
+		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3, 6)
+		assertMatch(t, PrefixMatch, false, dir, "foOBarBaZ", "foo", 0, 3, 7)
+		assertMatch(t, PrefixMatch, false, dir, "f-oBarbaz", "f-o", 0, 3, 8)
 	}
 }
 
 func TestSuffixMatch(t *testing.T) {
 	for _, dir := range []bool{true, false} {
-		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "Foo", -1, -1)
-		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "baz", 6, 9)
-		assertMatch(t, SuffixMatch, true, dir, "fooBarbaz", "Baz", -1, -1)
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "Foo", -1, -1, 0)
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "baz", 6, 9, 2)
+		assertMatch(t, SuffixMatch, false, dir, "fooBarBaZ", "baz", 6, 9, 5)
+		assertMatch(t, SuffixMatch, true, dir, "fooBarbaz", "Baz", -1, -1, 0)
 	}
 }
 
 func TestEmptyPattern(t *testing.T) {
 	for _, dir := range []bool{true, false} {
-		assertMatch(t, FuzzyMatch, true, dir, "foobar", "", 0, 0)
-		assertMatch(t, ExactMatchNaive, true, dir, "foobar", "", 0, 0)
-		assertMatch(t, PrefixMatch, true, dir, "foobar", "", 0, 0)
-		assertMatch(t, SuffixMatch, true, dir, "foobar", "", 6, 6)
+		assertMatch(t, FuzzyMatch, true, dir, "foobar", "", 0, 0, 0)
+		assertMatch(t, ExactMatchNaive, true, dir, "foobar", "", 0, 0, 0)
+		assertMatch(t, PrefixMatch, true, dir, "foobar", "", 0, 0, 0)
+		assertMatch(t, SuffixMatch, true, dir, "foobar", "", 6, 6, 0)
 	}
 }

src/ansi.go

@@ -36,7 +36,7 @@ func init() {
 	ansiRegex = regexp.MustCompile("\x1b\\[[0-9;]*[mK]")
 }
 
-func extractColor(str string, state *ansiState) (string, []ansiOffset, *ansiState) {
+func extractColor(str string, state *ansiState, proc func(string, *ansiState) bool) (string, []ansiOffset, *ansiState) {
 	var offsets []ansiOffset
 	var output bytes.Buffer
 
@@ -46,7 +46,11 @@ func extractColor(str string, state *ansiState) (string, []ansiOffset, *ansiStat
 
 	idx := 0
 	for _, offset := range ansiRegex.FindAllStringIndex(str, -1) {
-		output.WriteString(str[idx:offset[0]])
+		prev := str[idx:offset[0]]
+		output.WriteString(prev)
+		if proc != nil && !proc(prev, state) {
+			return "", nil, nil
+		}
 		newState := interpretCode(str[offset[0]:offset[1]], state)
 
 		if !newState.equals(state) {
@@ -77,6 +81,9 @@ func extractColor(str string, state *ansiState) (string, []ansiOffset, *ansiStat
 			(&offsets[len(offsets)-1]).offset[1] = int32(utf8.RuneCount(output.Bytes()))
 		}
 	}
+	if proc != nil {
+		proc(rest, state)
+	}
 	return output.String(), offsets, state
 }
 

src/ansi_test.go

@@ -17,7 +17,7 @@ func TestExtractColor(t *testing.T) {
 	var state *ansiState
 	clean := "\x1b[0m"
 	check := func(assertion func(ansiOffsets []ansiOffset, state *ansiState)) {
-		output, ansiOffsets, newState := extractColor(src, state)
+		output, ansiOffsets, newState := extractColor(src, state, nil)
 		state = newState
 		if output != "hello world" {
 			t.Errorf("Invalid output: {}", output)

src/chunklist_test.go

@@ -6,8 +6,11 @@ import (
 )
 
 func TestChunkList(t *testing.T) {
+	// FIXME global
+	sortCriteria = []criterion{byMatchLen, byLength}
+
 	cl := NewChunkList(func(s []byte, i int) *Item {
-		return &Item{text: []rune(string(s)), rank: Rank{0, 0, uint32(i * 2)}}
+		return &Item{text: []rune(string(s)), rank: buildEmptyRank(int32(i * 2))}
 	})
 
 	// Snapshot
@@ -36,8 +39,11 @@ func TestChunkList(t *testing.T) {
 	if len(*chunk1) != 2 {
 		t.Error("Snapshot should contain only two items")
 	}
-	if string((*chunk1)[0].text) != "hello" || (*chunk1)[0].rank.index != 0 ||
-		string((*chunk1)[1].text) != "world" || (*chunk1)[1].rank.index != 2 {
+	last := func(arr [5]int32) int32 {
+		return arr[len(arr)-1]
+	}
+	if string((*chunk1)[0].text) != "hello" || last((*chunk1)[0].rank) != 0 ||
+		string((*chunk1)[1].text) != "world" || last((*chunk1)[1].rank) != 2 {
 		t.Error("Invalid data")
 	}
 	if chunk1.IsFull() {

src/constants.go

@@ -8,7 +8,7 @@ import (
 
 const (
 	// Current version
-	version = "0.10.8"
+	version = "0.13.3"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
@@ -18,7 +18,8 @@ const (
 	defaultCommand = `find . -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | sed s/^..//`
 
 	// Terminal
-	initialDelay    = 100 * time.Millisecond
+	initialDelay    = 20 * time.Millisecond
+	initialDelayTac = 100 * time.Millisecond
 	spinnerDuration = 200 * time.Millisecond
 
 	// Matcher
@@ -35,6 +36,9 @@ const (
 
 	// History
 	defaultHistoryMax int = 1000
+
+	// Jump labels
+	defaultJumpLabels string = "asdfghjklqwertyuiopzxcvbnm1234567890ASDFGHJKLQWERTYUIOPZXCVBNM`~;:,<.>/?'\"!@#$%^&*()[{]}-_=+"
 )
 
 // fzf events

src/core.go

@@ -3,7 +3,7 @@ Package fzf implements fzf, a command-line fuzzy finder.
 
 The MIT License (MIT)
 
-Copyright (c) 2015 Junegunn Choi
+Copyright (c) 2016 Junegunn Choi
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -52,7 +52,7 @@ func Run(opts *Options) {
 	initProcs()
 
 	sort := opts.Sort > 0
-	rankTiebreak = opts.Tiebreak
+	sortCriteria = opts.Criteria
 
 	if opts.Version {
 		fmt.Println(version)
@@ -73,7 +73,7 @@ func Run(opts *Options) {
 		if opts.Theme != nil {
 			var state *ansiState
 			ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
-				trimmed, offsets, newState := extractColor(string(data), state)
+				trimmed, offsets, newState := extractColor(string(data), state, nil)
 				state = newState
 				return []rune(trimmed), offsets
 			}
@@ -81,7 +81,7 @@ func Run(opts *Options) {
 			// When color is disabled but ansi option is given,
 			// we simply strip out ANSI codes from the input
 			ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
-				trimmed, _, _ := extractColor(string(data), nil)
+				trimmed, _, _ := extractColor(string(data), nil, nil)
 				return []rune(trimmed), nil
 			}
 		}
@@ -103,9 +103,8 @@ func Run(opts *Options) {
 			runes, colors := ansiProcessor(data)
 			return &Item{
 				text:   runes,
-				index:  uint32(index),
 				colors: colors,
-				rank:   Rank{0, 0, uint32(index)}}
+				rank:   buildEmptyRank(int32(index))}
 		})
 	} else {
 		chunkList = NewChunkList(func(data []byte, index int) *Item {
@@ -120,9 +119,8 @@ func Run(opts *Options) {
 			item := Item{
 				text:     joinTokens(trans),
 				origText: &runes,
-				index:    uint32(index),
 				colors:   nil,
-				rank:     Rank{0, 0, uint32(index)}}
+				rank:     buildEmptyRank(int32(index))}
 
 			trimmed, colors := ansiProcessorRunes(item.text)
 			item.text = trimmed
@@ -141,9 +139,19 @@ func Run(opts *Options) {
 	}
 
 	// Matcher
+	forward := true
+	for _, cri := range opts.Criteria[1:] {
+		if cri == byEnd {
+			forward = false
+			break
+		}
+		if cri == byBegin {
+			break
+		}
+	}
 	patternBuilder := func(runes []rune) *Pattern {
 		return BuildPattern(
-			opts.Mode, opts.Case, opts.Tiebreak != byEnd,
+			opts.Fuzzy, opts.Extended, opts.Case, forward,
 			opts.Nth, opts.Delimiter, runes)
 	}
 	matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox)

src/curses/curses.go

@@ -4,13 +4,20 @@ package curses
 #include <ncurses.h>
 #include <locale.h>
 #cgo !static LDFLAGS: -lncurses
-#cgo static LDFLAGS: -l:libncurses.a -l:libtinfo.a -l:libgpm.a -ldl
+#cgo static LDFLAGS: -l:libncursesw.a -l:libtinfo.a -l:libgpm.a -ldl
+#cgo android static LDFLAGS: -l:libncurses.a -fPIE -march=armv7-a -mfpu=neon -mhard-float -Wl,--no-warn-mismatch
+
+SCREEN *c_newterm () {
+	return newterm(NULL, stderr, stdin);
+}
+
 */
 import "C"
 
 import (
 	"fmt"
 	"os"
+	"strings"
 	"syscall"
 	"time"
 	"unicode/utf8"
@@ -50,6 +57,7 @@ const (
 
 	Invalid
 	Mouse
+	DoubleClick
 
 	BTab
 	BSpace
@@ -72,7 +80,16 @@ const (
 	F2
 	F3
 	F4
+	F5
+	F6
+	F7
+	F8
+	F9
+	F10
 
+	AltEnter
+	AltSpace
+	AltSlash
 	AltBS
 	AltA
 	AltB
@@ -96,11 +113,14 @@ const (
 	ColCursor
 	ColSelected
 	ColHeader
-	ColUser
+	ColBorder
+	ColUser // Should be the last entry
 )
 
 const (
 	doubleClickDuration = 500 * time.Millisecond
+	colDefault          = -1
+	colUndefined        = -2
 )
 
 type ColorTheme struct {
@@ -117,6 +137,7 @@ type ColorTheme struct {
 	Cursor       int16
 	Selected     int16
 	Header       int16
+	Border       int16
 }
 
 type Event struct {
@@ -151,6 +172,49 @@ var (
 	DarkBG        int
 )
 
+type Window struct {
+	win    *C.WINDOW
+	Top    int
+	Left   int
+	Width  int
+	Height int
+}
+
+func NewWindow(top int, left int, width int, height int, border bool) *Window {
+	win := C.newwin(C.int(height), C.int(width), C.int(top), C.int(left))
+	if border {
+		attr := _color(ColBorder, false)
+		C.wattron(win, attr)
+		C.box(win, 0, 0)
+		C.wattroff(win, attr)
+	}
+	return &Window{
+		win:    win,
+		Top:    top,
+		Left:   left,
+		Width:  width,
+		Height: height,
+	}
+}
+
+func EmptyTheme() *ColorTheme {
+	return &ColorTheme{
+		UseDefault:   true,
+		Fg:           colUndefined,
+		Bg:           colUndefined,
+		DarkBg:       colUndefined,
+		Prompt:       colUndefined,
+		Match:        colUndefined,
+		Current:      colUndefined,
+		CurrentMatch: colUndefined,
+		Spinner:      colUndefined,
+		Info:         colUndefined,
+		Cursor:       colUndefined,
+		Selected:     colUndefined,
+		Header:       colUndefined,
+		Border:       colUndefined}
+}
+
 func init() {
 	_prevDownTime = time.Unix(0, 0)
 	_clickY = []int{}
@@ -168,7 +232,8 @@ func init() {
 		Info:         C.COLOR_WHITE,
 		Cursor:       C.COLOR_RED,
 		Selected:     C.COLOR_MAGENTA,
-		Header:       C.COLOR_CYAN}
+		Header:       C.COLOR_CYAN,
+		Border:       C.COLOR_BLACK}
 	Dark256 = &ColorTheme{
 		UseDefault:   true,
 		Fg:           15,
@@ -182,7 +247,8 @@ func init() {
 		Info:         144,
 		Cursor:       161,
 		Selected:     168,
-		Header:       109}
+		Header:       109,
+		Border:       59}
 	Light256 = &ColorTheme{
 		UseDefault:   true,
 		Fg:           15,
@@ -196,7 +262,8 @@ func init() {
 		Info:         101,
 		Cursor:       161,
 		Selected:     168,
-		Header:       31}
+		Header:       31,
+		Border:       145}
 }
 
 func attrColored(pair int, bold bool) C.int {
@@ -258,7 +325,7 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
 	}
 
 	C.setlocale(C.LC_ALL, C.CString(""))
-	_screen = C.newterm(nil, C.stderr, C.stdin)
+	_screen = C.c_newterm()
 	if _screen == nil {
 		fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
 		os.Exit(2)
@@ -272,44 +339,59 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
 
 	if theme != nil {
 		C.start_color()
-		initPairs(theme, black)
+		var baseTheme *ColorTheme
+		if C.tigetnum(C.CString("colors")) >= 256 {
+			baseTheme = Dark256
+		} else {
+			baseTheme = Default16
+		}
+		initPairs(baseTheme, theme, black)
 		_color = attrColored
 	} else {
 		_color = attrMono
 	}
 }
 
-func initPairs(theme *ColorTheme, black bool) {
-	fg := C.short(theme.Fg)
-	bg := C.short(theme.Bg)
+func override(a int16, b int16) C.short {
+	if b == colUndefined {
+		return C.short(a)
+	}
+	return C.short(b)
+}
+
+func initPairs(baseTheme *ColorTheme, theme *ColorTheme, black bool) {
+	fg := override(baseTheme.Fg, theme.Fg)
+	bg := override(baseTheme.Bg, theme.Bg)
 	if black {
 		bg = C.COLOR_BLACK
 	} else if theme.UseDefault {
-		fg = -1
-		bg = -1
+		fg = colDefault
+		bg = colDefault
 		C.use_default_colors()
 	}
 	if theme.UseDefault {
-		FG = -1
-		BG = -1
+		FG = colDefault
+		BG = colDefault
 	} else {
 		FG = int(fg)
 		BG = int(bg)
-		C.assume_default_colors(C.int(theme.Fg), C.int(bg))
+		C.assume_default_colors(C.int(override(baseTheme.Fg, theme.Fg)), C.int(bg))
 	}
 
-	CurrentFG = int(theme.Current)
-	DarkBG = int(theme.DarkBg)
-	darkBG := C.short(DarkBG)
-	C.init_pair(ColPrompt, C.short(theme.Prompt), bg)
-	C.init_pair(ColMatch, C.short(theme.Match), bg)
-	C.init_pair(ColCurrent, C.short(theme.Current), darkBG)
-	C.init_pair(ColCurrentMatch, C.short(theme.CurrentMatch), darkBG)
-	C.init_pair(ColSpinner, C.short(theme.Spinner), bg)
-	C.init_pair(ColInfo, C.short(theme.Info), bg)
-	C.init_pair(ColCursor, C.short(theme.Cursor), darkBG)
-	C.init_pair(ColSelected, C.short(theme.Selected), darkBG)
-	C.init_pair(ColHeader, C.short(theme.Header), bg)
+	currentFG := override(baseTheme.Current, theme.Current)
+	darkBG := override(baseTheme.DarkBg, theme.DarkBg)
+	CurrentFG = int(currentFG)
+	DarkBG = int(darkBG)
+	C.init_pair(ColPrompt, override(baseTheme.Prompt, theme.Prompt), bg)
+	C.init_pair(ColMatch, override(baseTheme.Match, theme.Match), bg)
+	C.init_pair(ColCurrent, currentFG, darkBG)
+	C.init_pair(ColCurrentMatch, override(baseTheme.CurrentMatch, theme.CurrentMatch), darkBG)
+	C.init_pair(ColSpinner, override(baseTheme.Spinner, theme.Spinner), bg)
+	C.init_pair(ColInfo, override(baseTheme.Info, theme.Info), bg)
+	C.init_pair(ColCursor, override(baseTheme.Cursor, theme.Cursor), darkBG)
+	C.init_pair(ColSelected, override(baseTheme.Selected, theme.Selected), darkBG)
+	C.init_pair(ColHeader, override(baseTheme.Header, theme.Header), bg)
+	C.init_pair(ColBorder, override(baseTheme.Border, theme.Border), bg)
 }
 
 func Close() {
@@ -365,7 +447,9 @@ func mouseSequence(sz *int) Event {
 		97, 101, 105, 113: // scroll-down / shift / cmd / ctrl
 		mod := _buf[3] >= 100
 		s := 1 - int(_buf[3]%2)*2
-		return Event{Mouse, 0, &MouseEvent{0, 0, s, false, false, mod}}
+		x := int(_buf[4] - 33)
+		y := int(_buf[5] - 33)
+		return Event{Mouse, 0, &MouseEvent{y, x, s, false, false, mod}}
 	}
 	return Event{Invalid, 0, nil}
 }
@@ -376,6 +460,12 @@ func escSequence(sz *int) Event {
 	}
 	*sz = 2
 	switch _buf[1] {
+	case 13:
+		return Event{AltEnter, 0, nil}
+	case 32:
+		return Event{AltSpace, 0, nil}
+	case 47:
+		return Event{AltSlash, 0, nil}
 	case 98:
 		return Event{AltB, 0, nil}
 	case 100:
@@ -421,6 +511,20 @@ func escSequence(sz *int) Event {
 			*sz = 4
 			switch _buf[2] {
 			case 50:
+				if len(_buf) == 5 && _buf[4] == 126 {
+					*sz = 5
+					switch _buf[3] {
+					case 48:
+						return Event{F9, 0, nil}
+					case 49:
+						return Event{F10, 0, nil}
+					}
+				}
+				// Bracketed paste mode \e[200~ / \e[201
+				if _buf[3] == 48 && (_buf[4] == 48 || _buf[4] == 49) && _buf[5] == 126 {
+					*sz = 6
+					return Event{Invalid, 0, nil}
+				}
 				return Event{Invalid, 0, nil} // INS
 			case 51:
 				return Event{Del, 0, nil}
@@ -434,6 +538,21 @@ func escSequence(sz *int) Event {
 				switch _buf[3] {
 				case 126:
 					return Event{Home, 0, nil}
+				case 53, 55, 56, 57:
+					if len(_buf) == 5 && _buf[4] == 126 {
+						*sz = 5
+						switch _buf[3] {
+						case 53:
+							return Event{F5, 0, nil}
+						case 55:
+							return Event{F6, 0, nil}
+						case 56:
+							return Event{F7, 0, nil}
+						case 57:
+							return Event{F8, 0, nil}
+						}
+					}
+					return Event{Invalid, 0, nil}
 				case 59:
 					if len(_buf) != 6 {
 						return Event{Invalid, 0, nil}
@@ -503,24 +622,37 @@ func GetChar() Event {
 	return Event{Rune, r, nil}
 }
 
-func Move(y int, x int) {
-	C.move(C.int(y), C.int(x))
+func (w *Window) Close() {
+	C.delwin(w.win)
 }
 
-func MoveAndClear(y int, x int) {
-	Move(y, x)
-	C.clrtoeol()
+func (w *Window) Enclose(y int, x int) bool {
+	return bool(C.wenclose(w.win, C.int(y), C.int(x)))
 }
 
-func Print(text string) {
-	C.addstr(C.CString(text))
+func (w *Window) Move(y int, x int) {
+	C.wmove(w.win, C.int(y), C.int(x))
 }
 
-func CPrint(pair int, bold bool, text string) {
+func (w *Window) MoveAndClear(y int, x int) {
+	w.Move(y, x)
+	C.wclrtoeol(w.win)
+}
+
+func (w *Window) Print(text string) {
+	C.waddstr(w.win, C.CString(strings.Map(func(r rune) rune {
+		if r < 32 {
+			return -1
+		}
+		return r
+	}, text)))
+}
+
+func (w *Window) CPrint(pair int, bold bool, text string) {
 	attr := _color(pair, bold)
-	C.attron(attr)
-	Print(text)
-	C.attroff(attr)
+	C.wattron(w.win, attr)
+	w.Print(text)
+	C.wattroff(w.win, attr)
 }
 
 func Clear() {
@@ -535,6 +667,30 @@ func Refresh() {
 	C.refresh()
 }
 
+func (w *Window) Erase() {
+	C.werase(w.win)
+}
+
+func (w *Window) Fill(str string) bool {
+	return C.waddstr(w.win, C.CString(str)) == C.OK
+}
+
+func (w *Window) CFill(str string, fg int, bg int, bold bool) bool {
+	attr := _color(PairFor(fg, bg), bold)
+	C.wattron(w.win, attr)
+	ret := w.Fill(str)
+	C.wattroff(w.win, attr)
+	return ret
+}
+
+func (w *Window) Refresh() {
+	C.wnoutrefresh(w.win)
+}
+
+func DoUpdate() {
+	C.doupdate()
+}
+
 func PairFor(fg int, bg int) int {
 	key := (fg << 8) + bg
 	if found, prs := _colorMap[key]; prs {

src/item.go

@@ -20,31 +20,42 @@ type Item struct {
 	text        []rune
 	origText    *[]rune
 	transformed []Token
-	index       uint32
 	offsets     []Offset
 	colors      []ansiOffset
-	rank        Rank
+	rank        [5]int32
+	bonus       int32
 }
 
-// Rank is used to sort the search result
-type Rank struct {
-	matchlen uint16
-	tiebreak uint16
-	index    uint32
+// Sort criteria to use. Never changes once fzf is started.
+var sortCriteria []criterion
+
+func isRankValid(rank [5]int32) bool {
+	// Exclude ordinal index
+	for _, r := range rank[:4] {
+		if r > 0 {
+			return true
+		}
+	}
+	return false
 }
 
-// Tiebreak criterion to use. Never changes once fzf is started.
-var rankTiebreak tiebreak
+func buildEmptyRank(index int32) [5]int32 {
+	return [5]int32{0, 0, 0, 0, index}
+}
+
+func (item *Item) Index() int32 {
+	return item.rank[4]
+}
 
 // Rank calculates rank of the Item
-func (item *Item) Rank(cache bool) Rank {
-	if cache && (item.rank.matchlen > 0 || item.rank.tiebreak > 0) {
+func (item *Item) Rank(cache bool) [5]int32 {
+	if cache && isRankValid(item.rank) {
 		return item.rank
 	}
 	matchlen := 0
 	prevEnd := 0
 	lenSum := 0
-	minBegin := math.MaxUint16
+	minBegin := math.MaxInt32
 	for _, offset := range item.offsets {
 		begin := int(offset[0])
 		end := int(offset[1])
@@ -63,30 +74,45 @@ func (item *Item) Rank(cache bool) Rank {
 			matchlen += end - begin
 		}
 	}
-	var tiebreak uint16
-	switch rankTiebreak {
-	case byLength:
-		// It is guaranteed that .transformed in not null in normal execution
-		if item.transformed != nil {
-			// If offsets is empty, lenSum will be 0, but we don't care
-			tiebreak = uint16(lenSum)
-		} else {
-			tiebreak = uint16(len(item.text))
+	rank := buildEmptyRank(item.Index())
+	for idx, criterion := range sortCriteria {
+		var val int32
+		switch criterion {
+		case byMatchLen:
+			if matchlen == 0 {
+				val = math.MaxInt32
+			} else {
+				// It is extremely unlikely that bonus exceeds 128
+				val = 128*int32(matchlen) - item.bonus
+			}
+		case byLength:
+			// It is guaranteed that .transformed in not null in normal execution
+			if item.transformed != nil {
+				// If offsets is empty, lenSum will be 0, but we don't care
+				val = int32(lenSum)
+			} else {
+				val = int32(len(item.text))
+			}
+		case byBegin:
+			// We can't just look at item.offsets[0][0] because it can be an inverse term
+			whitePrefixLen := 0
+			for idx, r := range item.text {
+				whitePrefixLen = idx
+				if idx == minBegin || r != ' ' && r != '\t' {
+					break
+				}
+			}
+			val = int32(minBegin - whitePrefixLen)
+		case byEnd:
+			if prevEnd > 0 {
+				val = int32(1 + len(item.text) - prevEnd)
+			} else {
+				// Empty offsets due to inverse terms.
+				val = 1
+			}
 		}
-	case byBegin:
-		// We can't just look at item.offsets[0][0] because it can be an inverse term
-		tiebreak = uint16(minBegin)
-	case byEnd:
-		if prevEnd > 0 {
-			tiebreak = uint16(1 + len(item.text) - prevEnd)
-		} else {
-			// Empty offsets due to inverse terms.
-			tiebreak = 1
-		}
-	case byIndex:
-		tiebreak = 1
+		rank[idx] = val
 	}
-	rank := Rank{uint16(matchlen), tiebreak, item.index}
 	if cache {
 		item.rank = rank
 	}
@@ -102,7 +128,7 @@ func (item *Item) AsString(stripAnsi bool) string {
 func (item *Item) StringPtr(stripAnsi bool) *string {
 	if item.origText != nil {
 		if stripAnsi {
-			trimmed, _, _ := extractColor(string(*item.origText), nil)
+			trimmed, _, _ := extractColor(string(*item.origText), nil, nil)
 			return &trimmed
 		}
 		orig := string(*item.origText)
@@ -251,18 +277,15 @@ func (a ByRelevanceTac) Less(i, j int) bool {
 	return compareRanks(irank, jrank, true)
 }
 
-func compareRanks(irank Rank, jrank Rank, tac bool) bool {
-	if irank.matchlen < jrank.matchlen {
-		return true
-	} else if irank.matchlen > jrank.matchlen {
-		return false
+func compareRanks(irank [5]int32, jrank [5]int32, tac bool) bool {
+	for idx := 0; idx < 4; idx++ {
+		left := irank[idx]
+		right := jrank[idx]
+		if left < right {
+			return true
+		} else if left > right {
+			return false
+		}
 	}
-
-	if irank.tiebreak < jrank.tiebreak {
-		return true
-	} else if irank.tiebreak > jrank.tiebreak {
-		return false
-	}
-
-	return (irank.index <= jrank.index) != tac
+	return (irank[4] <= jrank[4]) != tac
 }

src/item_test.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"math"
 	"sort"
 	"testing"
 
@@ -22,31 +23,34 @@ func TestOffsetSort(t *testing.T) {
 }
 
 func TestRankComparison(t *testing.T) {
-	if compareRanks(Rank{3, 0, 5}, Rank{2, 0, 7}, false) ||
-		!compareRanks(Rank{3, 0, 5}, Rank{3, 0, 6}, false) ||
-		!compareRanks(Rank{1, 2, 3}, Rank{1, 3, 2}, false) ||
-		!compareRanks(Rank{0, 0, 0}, Rank{0, 0, 0}, false) {
+	if compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{2, 0, 0, 0, 7}, false) ||
+		!compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{3, 0, 0, 0, 6}, false) ||
+		!compareRanks([5]int32{1, 2, 0, 0, 3}, [5]int32{1, 3, 0, 0, 2}, false) ||
+		!compareRanks([5]int32{0, 0, 0, 0, 0}, [5]int32{0, 0, 0, 0, 0}, false) {
 		t.Error("Invalid order")
 	}
 
-	if compareRanks(Rank{3, 0, 5}, Rank{2, 0, 7}, true) ||
-		!compareRanks(Rank{3, 0, 5}, Rank{3, 0, 6}, false) ||
-		!compareRanks(Rank{1, 2, 3}, Rank{1, 3, 2}, true) ||
-		!compareRanks(Rank{0, 0, 0}, Rank{0, 0, 0}, false) {
+	if compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{2, 0, 0, 0, 7}, true) ||
+		!compareRanks([5]int32{3, 0, 0, 0, 5}, [5]int32{3, 0, 0, 0, 6}, false) ||
+		!compareRanks([5]int32{1, 2, 0, 0, 3}, [5]int32{1, 3, 0, 0, 2}, true) ||
+		!compareRanks([5]int32{0, 0, 0, 0, 0}, [5]int32{0, 0, 0, 0, 0}, false) {
 		t.Error("Invalid order (tac)")
 	}
 }
 
 // Match length, string length, index
 func TestItemRank(t *testing.T) {
+	// FIXME global
+	sortCriteria = []criterion{byMatchLen, byLength}
+
 	strs := [][]rune{[]rune("foo"), []rune("foobar"), []rune("bar"), []rune("baz")}
-	item1 := Item{text: strs[0], index: 1, offsets: []Offset{}}
+	item1 := Item{text: strs[0], offsets: []Offset{}, rank: [5]int32{0, 0, 0, 0, 1}}
 	rank1 := item1.Rank(true)
-	if rank1.matchlen != 0 || rank1.tiebreak != 3 || rank1.index != 1 {
+	if rank1[0] != math.MaxInt32 || rank1[1] != 3 || rank1[4] != 1 {
 		t.Error(item1.Rank(true))
 	}
 	// Only differ in index
-	item2 := Item{text: strs[0], index: 0, offsets: []Offset{}}
+	item2 := Item{text: strs[0], offsets: []Offset{}}
 
 	items := []*Item{&item1, &item2}
 	sort.Sort(ByRelevance(items))
@@ -62,15 +66,15 @@ func TestItemRank(t *testing.T) {
 	}
 
 	// Sort by relevance
-	item3 := Item{text: strs[1], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
-	item4 := Item{text: strs[1], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
-	item5 := Item{text: strs[2], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
-	item6 := Item{text: strs[2], rank: Rank{0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
+	item3 := Item{text: strs[1], rank: [5]int32{0, 0, 0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
+	item4 := Item{text: strs[1], rank: [5]int32{0, 0, 0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
+	item5 := Item{text: strs[2], rank: [5]int32{0, 0, 0, 0, 2}, offsets: []Offset{Offset{1, 3}, Offset{5, 7}}}
+	item6 := Item{text: strs[2], rank: [5]int32{0, 0, 0, 0, 2}, offsets: []Offset{Offset{1, 2}, Offset{6, 7}}}
 	items = []*Item{&item1, &item2, &item3, &item4, &item5, &item6}
 	sort.Sort(ByRelevance(items))
-	if items[0] != &item2 || items[1] != &item1 ||
-		items[2] != &item6 || items[3] != &item4 ||
-		items[4] != &item5 || items[5] != &item3 {
+	if items[0] != &item6 || items[1] != &item4 ||
+		items[2] != &item5 || items[3] != &item3 ||
+		items[4] != &item2 || items[5] != &item1 {
 		t.Error(items)
 	}
 }

src/matcher.go

@@ -200,7 +200,7 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 	}
 
 	partialResults := make([][]*Item, numSlices)
-	for range slices {
+	for _, _ = range slices {
 		partialResult := <-resultChan
 		partialResults[partialResult.index] = partialResult.matches
 	}

src/merger.go

@@ -88,7 +88,7 @@ func (mg *Merger) cacheable() bool {
 
 func (mg *Merger) mergedGet(idx int) *Item {
 	for i := len(mg.merged); i <= idx; i++ {
-		minRank := Rank{0, 0, 0}
+		minRank := buildEmptyRank(0)
 		minIdx := -1
 		for listIdx, list := range mg.lists {
 			cursor := mg.cursors[listIdx]

src/merger_test.go

@@ -23,7 +23,7 @@ func randItem() *Item {
 	}
 	return &Item{
 		text:    []rune(str),
-		index:   rand.Uint32(),
+		rank:    buildEmptyRank(rand.Int31()),
 		offsets: offsets}
 }
 

src/options.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"fmt"
 	"os"
 	"regexp"
 	"strconv"
@@ -16,37 +17,54 @@ const usage = `usage: fzf [options]
 
   Search
     -x, --extended        Extended-search mode
-    -e, --extended-exact  Extended-search mode (exact match)
+                          (enabled by default; +x or --no-extended to disable)
+    -e, --exact           Enable Exact-match
     -i                    Case-insensitive match (default: smart-case match)
     +i                    Case-sensitive match
     -n, --nth=N[,..]      Comma-separated list of field index expressions
                           for limiting search scope. Each can be a non-zero
-                          integer or a range expression ([BEGIN]..[END])
-    --with-nth=N[,..]     Transform item using index expressions within finder
-    -d, --delimiter=STR   Field delimiter regex for --nth (default: AWK-style)
+                          integer or a range expression ([BEGIN]..[END]).
+    --with-nth=N[,..]     Transform the presentation of each line using
+                          field index expressions
+    -d, --delimiter=STR   Field delimiter regex (default: AWK-style)
     +s, --no-sort         Do not sort the result
     --tac                 Reverse the order of the input
-    --tiebreak=CRITERION  Sort criterion when the scores are tied;
-                          [length|begin|end|index] (default: length)
+    --tiebreak=CRI[,..]   Comma-separated list of sort criteria to apply
+                          when the scores are tied [length|begin|end|index]
+                          (default: length)
 
   Interface
     -m, --multi           Enable multi-select with tab/shift-tab
-    --ansi                Enable processing of ANSI color codes
     --no-mouse            Disable mouse
-    --color=COLSPEC       Base scheme (dark|light|16|bw) and/or custom colors
-    --black               Use black background
-    --reverse             Reverse orientation
-    --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
+    --bind=KEYBINDS       Custom key bindings. Refer to the man page.
     --cycle               Enable cyclic scroll
     --no-hscroll          Disable horizontal scroll
+    --hscroll-off=COL     Number of screen columns to keep to the right of the
+                          highlighted substring (default: 10)
+    --jump-labels=CHARS   Label characters for jump and jump-accept
+
+  Layout
+    --reverse             Reverse orientation
+    --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
     --inline-info         Display finder info inline with the query
     --prompt=STR          Input prompt (default: '> ')
-    --bind=KEYBINDS       Custom key bindings. Refer to the man page.
-    --history=FILE        History file
-    --history-size=N      Maximum number of history entries (default: 1000)
     --header=STR          String to print as header
     --header-lines=N      The first N lines of the input are treated as header
 
+  Display
+    --ansi                Enable processing of ANSI color codes
+    --tabstop=SPACES      Number of spaces for a tab character (default: 8)
+    --color=COLSPEC       Base scheme (dark|light|16|bw) and/or custom colors
+
+  History
+    --history=FILE        History file
+    --history-size=N      Maximum number of history entries (default: 1000)
+
+  Preview
+    --preview=COMMAND     Command to preview highlighted line ({})
+    --preview-window=OPT  Preview window layout (default: right:50%)
+                          [up|down|left|right][:SIZE[%]][:hidden]
+
   Scripting
     -q, --query=STR       Start the finder with the given query
     -1, --select-1        Automatically select the only match
@@ -58,20 +76,10 @@ const usage = `usage: fzf [options]
 
   Environment variables
     FZF_DEFAULT_COMMAND   Default command to use when input is tty
-    FZF_DEFAULT_OPTS      Defaults options. (e.g. '-x -m')
+    FZF_DEFAULT_OPTS      Default options (e.g. '--reverse --inline-info')
 
 `
 
-// Mode denotes the current search mode
-type Mode int
-
-// Search modes
-const (
-	ModeFuzzy Mode = iota
-	ModeExtended
-	ModeExtendedExact
-)
-
 // Case denotes case-sensitivity of search
 type Case int
 
@@ -83,29 +91,51 @@ const (
 )
 
 // Sort criteria
-type tiebreak int
+type criterion int
 
 const (
-	byLength tiebreak = iota
+	byMatchLen criterion = iota
+	byLength
 	byBegin
 	byEnd
-	byIndex
 )
 
-func defaultMargin() [4]string {
-	return [4]string{"0", "0", "0", "0"}
+type sizeSpec struct {
+	size    float64
+	percent bool
+}
+
+func defaultMargin() [4]sizeSpec {
+	return [4]sizeSpec{}
+}
+
+type windowPosition int
+
+const (
+	posUp windowPosition = iota
+	posDown
+	posLeft
+	posRight
+)
+
+type previewOpts struct {
+	command  string
+	position windowPosition
+	size     sizeSpec
+	hidden   bool
 }
 
 // Options stores the values of command-line options
 type Options struct {
-	Mode        Mode
+	Fuzzy       bool
+	Extended    bool
 	Case        Case
 	Nth         []Range
 	WithNth     []Range
 	Delimiter   Delimiter
 	Sort        int
 	Tac         bool
-	Tiebreak    tiebreak
+	Criteria    []criterion
 	Multi       bool
 	Ansi        bool
 	Mouse       bool
@@ -114,7 +144,9 @@ type Options struct {
 	Reverse     bool
 	Cycle       bool
 	Hscroll     bool
+	HscrollOff  int
 	InlineInfo  bool
+	JumpLabels  string
 	Prompt      string
 	Query       string
 	Select1     bool
@@ -124,42 +156,40 @@ type Options struct {
 	Expect      map[int]string
 	Keymap      map[int]actionType
 	Execmap     map[int]string
+	Preview     previewOpts
 	PrintQuery  bool
 	ReadZero    bool
 	Sync        bool
 	History     *History
 	Header      []string
 	HeaderLines int
-	Margin      [4]string
+	Margin      [4]sizeSpec
+	Tabstop     int
 	Version     bool
 }
 
-func defaultTheme() *curses.ColorTheme {
-	if strings.Contains(os.Getenv("TERM"), "256") {
-		return curses.Dark256
-	}
-	return curses.Default16
-}
-
 func defaultOptions() *Options {
 	return &Options{
-		Mode:        ModeFuzzy,
+		Fuzzy:       true,
+		Extended:    true,
 		Case:        CaseSmart,
 		Nth:         make([]Range, 0),
 		WithNth:     make([]Range, 0),
 		Delimiter:   Delimiter{},
 		Sort:        1000,
 		Tac:         false,
-		Tiebreak:    byLength,
+		Criteria:    []criterion{byMatchLen, byLength},
 		Multi:       false,
 		Ansi:        false,
 		Mouse:       true,
-		Theme:       defaultTheme(),
+		Theme:       curses.EmptyTheme(),
 		Black:       false,
 		Reverse:     false,
 		Cycle:       false,
 		Hscroll:     true,
+		HscrollOff:  10,
 		InlineInfo:  false,
+		JumpLabels:  defaultJumpLabels,
 		Prompt:      "> ",
 		Query:       "",
 		Select1:     false,
@@ -167,8 +197,9 @@ func defaultOptions() *Options {
 		Filter:      nil,
 		ToggleSort:  false,
 		Expect:      make(map[int]string),
-		Keymap:      defaultKeymap(),
+		Keymap:      make(map[int]actionType),
 		Execmap:     make(map[int]string),
+		Preview:     previewOpts{"", posRight, sizeSpec{50, true}, false},
 		PrintQuery:  false,
 		ReadZero:    false,
 		Sync:        false,
@@ -176,6 +207,7 @@ func defaultOptions() *Options {
 		Header:      make([]string, 0),
 		HeaderLines: 0,
 		Margin:      defaultMargin(),
+		Tabstop:     8,
 		Version:     false}
 }
 
@@ -321,6 +353,12 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = curses.AltZ + int(' ')
 		case "bspace", "bs":
 			chord = curses.BSpace
+		case "alt-enter", "alt-return":
+			chord = curses.AltEnter
+		case "alt-space":
+			chord = curses.AltSpace
+		case "alt-/":
+			chord = curses.AltSlash
 		case "alt-bs", "alt-bspace":
 			chord = curses.AltBS
 		case "tab":
@@ -343,12 +381,16 @@ func parseKeyChords(str string, message string) map[int]string {
 			chord = curses.SLeft
 		case "shift-right":
 			chord = curses.SRight
+		case "double-click":
+			chord = curses.DoubleClick
+		case "f10":
+			chord = curses.F10
 		default:
 			if len(key) == 6 && strings.HasPrefix(lkey, "ctrl-") && isAlphabet(lkey[5]) {
 				chord = curses.CtrlA + int(lkey[5]) - 'a'
 			} else if len(key) == 5 && strings.HasPrefix(lkey, "alt-") && isAlphabet(lkey[4]) {
 				chord = curses.AltA + int(lkey[4]) - 'a'
-			} else if len(key) == 2 && strings.HasPrefix(lkey, "f") && key[1] >= '1' && key[1] <= '4' {
+			} else if len(key) == 2 && strings.HasPrefix(lkey, "f") && key[1] >= '1' && key[1] <= '9' {
 				chord = curses.F1 + int(key[1]) - '1'
 			} else if utf8.RuneCountInString(key) == 1 {
 				chord = curses.AltZ + int([]rune(key)[0])
@@ -363,20 +405,39 @@ func parseKeyChords(str string, message string) map[int]string {
 	return chords
 }
 
-func parseTiebreak(str string) tiebreak {
-	switch strings.ToLower(str) {
-	case "length":
-		return byLength
-	case "index":
-		return byIndex
-	case "begin":
-		return byBegin
-	case "end":
-		return byEnd
-	default:
-		errorExit("invalid sort criterion: " + str)
+func parseTiebreak(str string) []criterion {
+	criteria := []criterion{byMatchLen}
+	hasIndex := false
+	hasLength := false
+	hasBegin := false
+	hasEnd := false
+	check := func(notExpected *bool, name string) {
+		if *notExpected {
+			errorExit("duplicate sort criteria: " + name)
+		}
+		if hasIndex {
+			errorExit("index should be the last criterion")
+		}
+		*notExpected = true
 	}
-	return byLength
+	for _, str := range strings.Split(strings.ToLower(str), ",") {
+		switch str {
+		case "index":
+			check(&hasIndex, "index")
+		case "length":
+			check(&hasLength, "length")
+			criteria = append(criteria, byLength)
+		case "begin":
+			check(&hasBegin, "begin")
+			criteria = append(criteria, byBegin)
+		case "end":
+			check(&hasEnd, "end")
+			criteria = append(criteria, byEnd)
+		default:
+			errorExit("invalid sort criterion: " + str)
+		}
+	}
+	return criteria
 }
 
 func dupeTheme(theme *curses.ColorTheme) *curses.ColorTheme {
@@ -432,6 +493,8 @@ func parseTheme(defaultTheme *curses.ColorTheme, str string) *curses.ColorTheme
 				theme.Match = ansi
 			case "hl+":
 				theme.CurrentMatch = ansi
+			case "border":
+				theme.Border = ansi
 			case "prompt":
 				theme.Prompt = ansi
 			case "spinner":
@@ -466,15 +529,18 @@ const (
 	escapedComma = 1
 )
 
-func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort bool, str string) (map[int]actionType, map[int]string, bool) {
+func parseKeymap(keymap map[int]actionType, execmap map[int]string, str string) {
 	if executeRegexp == nil {
 		// Backreferences are not supported.
 		// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
 		executeRegexp = regexp.MustCompile(
-			"(?s):execute:.*|:execute(\\([^)]*\\)|\\[[^\\]]*\\]|~[^~]*~|![^!]*!|@[^@]*@|\\#[^\\#]*\\#|\\$[^\\$]*\\$|%[^%]*%|\\^[^\\^]*\\^|&[^&]*&|\\*[^\\*]*\\*|;[^;]*;|/[^/]*/|\\|[^\\|]*\\|)")
+			"(?s):execute(-multi)?:.*|:execute(-multi)?(\\([^)]*\\)|\\[[^\\]]*\\]|~[^~]*~|![^!]*!|@[^@]*@|\\#[^\\#]*\\#|\\$[^\\$]*\\$|%[^%]*%|\\^[^\\^]*\\^|&[^&]*&|\\*[^\\*]*\\*|;[^;]*;|/[^/]*/|\\|[^\\|]*\\|)")
 	}
 	masked := executeRegexp.ReplaceAllStringFunc(str, func(src string) string {
-		return ":execute(" + strings.Repeat(" ", len(src)-10) + ")"
+		if strings.HasPrefix(src, ":execute-multi") {
+			return ":execute-multi(" + strings.Repeat(" ", len(src)-len(":execute-multi()")) + ")"
+		}
+		return ":execute(" + strings.Repeat(" ", len(src)-len(":execute()")) + ")"
 	})
 	masked = strings.Replace(masked, "::", string([]rune{escapedColon, ':'}), -1)
 	masked = strings.Replace(masked, ",:", string([]rune{escapedComma, ':'}), -1)
@@ -509,6 +575,8 @@ func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort b
 			keymap[key] = actAbort
 		case "accept":
 			keymap[key] = actAccept
+		case "print-query":
+			keymap[key] = actPrintQuery
 		case "backward-char":
 			keymap[key] = actBackwardChar
 		case "backward-delete-char":
@@ -529,6 +597,10 @@ func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort b
 			keymap[key] = actForwardChar
 		case "forward-word":
 			keymap[key] = actForwardWord
+		case "jump":
+			keymap[key] = actJump
+		case "jump-accept":
+			keymap[key] = actJumpAccept
 		case "kill-line":
 			keymap[key] = actKillLine
 		case "kill-word":
@@ -545,6 +617,10 @@ func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort b
 			keymap[key] = actToggleDown
 		case "toggle-up":
 			keymap[key] = actToggleUp
+		case "toggle-in":
+			keymap[key] = actToggleIn
+		case "toggle-out":
+			keymap[key] = actToggleOut
 		case "toggle-all":
 			keymap[key] = actToggleAll
 		case "select-all":
@@ -565,30 +641,43 @@ func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort b
 			keymap[key] = actPreviousHistory
 		case "next-history":
 			keymap[key] = actNextHistory
+		case "toggle-preview":
+			keymap[key] = actTogglePreview
 		case "toggle-sort":
 			keymap[key] = actToggleSort
-			toggleSort = true
 		default:
 			if isExecuteAction(actLower) {
-				keymap[key] = actExecute
-				if act[7] == ':' {
-					execmap[key] = act[8:]
+				var offset int
+				if strings.HasPrefix(actLower, "execute-multi") {
+					keymap[key] = actExecuteMulti
+					offset = len("execute-multi")
 				} else {
-					execmap[key] = act[8 : len(act)-1]
+					keymap[key] = actExecute
+					offset = len("execute")
+				}
+				if act[offset] == ':' {
+					execmap[key] = act[offset+1:]
+				} else {
+					execmap[key] = act[offset+1 : len(act)-1]
 				}
 			} else {
 				errorExit("unknown action: " + act)
 			}
 		}
 	}
-	return keymap, execmap, toggleSort
 }
 
 func isExecuteAction(str string) bool {
-	if !strings.HasPrefix(str, "execute") || len(str) < 9 {
+	if !strings.HasPrefix(str, "execute") || len(str) < len("execute()") {
 		return false
 	}
-	b := str[7]
+	b := str[len("execute")]
+	if strings.HasPrefix(str, "execute-multi") {
+		if len(str) < len("execute-multi()") {
+			return false
+		}
+		b = str[len("execute-multi")]
+	}
 	e := str[len(str)-1]
 	if b == ':' || b == '(' && e == ')' || b == '[' && e == ']' ||
 		b == e && strings.ContainsAny(string(b), "~!@#$%^&*;/|") {
@@ -597,53 +686,98 @@ func isExecuteAction(str string) bool {
 	return false
 }
 
-func checkToggleSort(keymap map[int]actionType, str string) map[int]actionType {
+func parseToggleSort(keymap map[int]actionType, str string) {
 	keys := parseKeyChords(str, "key name required")
 	if len(keys) != 1 {
 		errorExit("multiple keys specified")
 	}
 	keymap[firstKey(keys)] = actToggleSort
-	return keymap
 }
 
 func strLines(str string) []string {
 	return strings.Split(strings.TrimSuffix(str, "\n"), "\n")
 }
 
-func parseMargin(margin string) [4]string {
-	margins := strings.Split(margin, ",")
-	checked := func(str string) string {
-		if strings.HasSuffix(str, "%") {
-			val := atof(str[:len(str)-1])
-			if val < 0 {
-				errorExit("margin must be non-negative")
-			}
-			if val > 100 {
-				errorExit("margin too large")
-			}
-		} else {
-			val := atoi(str)
-			if val < 0 {
-				errorExit("margin must be non-negative")
-			}
+func parseSize(str string, maxPercent float64, label string) sizeSpec {
+	var val float64
+	percent := strings.HasSuffix(str, "%")
+	if percent {
+		val = atof(str[:len(str)-1])
+		if val < 0 {
+			errorExit(label + " must be non-negative")
 		}
-		return str
+		if val > maxPercent {
+			errorExit(fmt.Sprintf("%s too large (max: %d%%)", label, int(maxPercent)))
+		}
+	} else {
+		if strings.Contains(str, ".") {
+			errorExit(label + " (without %) must be a non-negative integer")
+		}
+
+		val = float64(atoi(str))
+		if val < 0 {
+			errorExit(label + " must be non-negative")
+		}
+	}
+	return sizeSpec{val, percent}
+}
+
+func parsePreviewWindow(opts *previewOpts, input string) {
+	layout := input
+	if strings.HasSuffix(layout, ":hidden") {
+		opts.hidden = true
+		layout = strings.TrimSuffix(layout, ":hidden")
+	}
+
+	tokens := strings.Split(layout, ":")
+	if len(tokens) == 0 || len(tokens) > 2 {
+		errorExit("invalid window layout: " + input)
+	}
+
+	if len(tokens) > 1 {
+		opts.size = parseSize(tokens[1], 99, "window size")
+	} else {
+		opts.size = sizeSpec{50, true}
+	}
+	if !opts.size.percent && opts.size.size > 0 {
+		// Adjust size for border
+		opts.size.size += 2
+	}
+
+	switch tokens[0] {
+	case "up":
+		opts.position = posUp
+	case "down":
+		opts.position = posDown
+	case "left":
+		opts.position = posLeft
+	case "right":
+		opts.position = posRight
+	default:
+		errorExit("invalid window position: " + input)
+	}
+}
+
+func parseMargin(margin string) [4]sizeSpec {
+	margins := strings.Split(margin, ",")
+	checked := func(str string) sizeSpec {
+		return parseSize(str, 49, "margin")
 	}
 	switch len(margins) {
 	case 1:
 		m := checked(margins[0])
-		return [4]string{m, m, m, m}
+		return [4]sizeSpec{m, m, m, m}
 	case 2:
 		tb := checked(margins[0])
 		rl := checked(margins[1])
-		return [4]string{tb, rl, tb, rl}
+		return [4]sizeSpec{tb, rl, tb, rl}
 	case 3:
 		t := checked(margins[0])
 		rl := checked(margins[1])
 		b := checked(margins[2])
-		return [4]string{t, rl, b, rl}
+		return [4]sizeSpec{t, rl, b, rl}
 	case 4:
-		return [4]string{
+		return [4]sizeSpec{
 			checked(margins[0]), checked(margins[1]),
 			checked(margins[2]), checked(margins[3])}
 	default:
@@ -653,7 +787,6 @@ func parseMargin(margin string) [4]string {
 }
 
 func parseOptions(opts *Options, allArgs []string) {
-	keymap := make(map[int]actionType)
 	var historyMax int
 	if opts.History == nil {
 		historyMax = defaultHistoryMax
@@ -676,17 +809,24 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.History.maxSize = historyMax
 		}
 	}
+	validateJumpLabels := false
 	for i := 0; i < len(allArgs); i++ {
 		arg := allArgs[i]
 		switch arg {
 		case "-h", "--help":
 			help(exitOk)
 		case "-x", "--extended":
-			opts.Mode = ModeExtended
-		case "-e", "--extended-exact":
-			opts.Mode = ModeExtendedExact
-		case "+x", "--no-extended", "+e", "--no-extended-exact":
-			opts.Mode = ModeFuzzy
+			opts.Extended = true
+		case "-e", "--exact":
+			opts.Fuzzy = false
+		case "--extended-exact":
+			// Note that we now don't have --no-extended-exact
+			opts.Fuzzy = false
+			opts.Extended = true
+		case "+x", "--no-extended":
+			opts.Extended = false
+		case "+e", "--no-exact":
+			opts.Fuzzy = true
 		case "-q", "--query":
 			opts.Query = nextString(allArgs, &i, "query string required")
 		case "-f", "--filter":
@@ -695,20 +835,18 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--expect":
 			opts.Expect = parseKeyChords(nextString(allArgs, &i, "key names required"), "key names required")
 		case "--tiebreak":
-			opts.Tiebreak = parseTiebreak(nextString(allArgs, &i, "sort criterion required"))
+			opts.Criteria = parseTiebreak(nextString(allArgs, &i, "sort criterion required"))
 		case "--bind":
-			keymap, opts.Execmap, opts.ToggleSort =
-				parseKeymap(keymap, opts.Execmap, opts.ToggleSort, nextString(allArgs, &i, "bind expression required"))
+			parseKeymap(opts.Keymap, opts.Execmap, nextString(allArgs, &i, "bind expression required"))
 		case "--color":
 			spec := optionalNextString(allArgs, &i)
 			if len(spec) == 0 {
-				opts.Theme = defaultTheme()
+				opts.Theme = curses.EmptyTheme()
 			} else {
 				opts.Theme = parseTheme(opts.Theme, spec)
 			}
 		case "--toggle-sort":
-			keymap = checkToggleSort(keymap, nextString(allArgs, &i, "key name required"))
-			opts.ToggleSort = true
+			parseToggleSort(opts.Keymap, nextString(allArgs, &i, "key name required"))
 		case "-d", "--delimiter":
 			opts.Delimiter = delimiterRegexp(nextString(allArgs, &i, "delimiter required"))
 		case "-n", "--nth":
@@ -757,10 +895,15 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Hscroll = true
 		case "--no-hscroll":
 			opts.Hscroll = false
+		case "--hscroll-off":
+			opts.HscrollOff = nextInt(allArgs, &i, "hscroll offset required")
 		case "--inline-info":
 			opts.InlineInfo = true
 		case "--no-inline-info":
 			opts.InlineInfo = false
+		case "--jump-labels":
+			opts.JumpLabels = nextString(allArgs, &i, "label characters required")
+			validateJumpLabels = true
 		case "-1", "--select-1":
 			opts.Select1 = true
 		case "+1", "--no-select-1":
@@ -800,11 +943,20 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--header-lines":
 			opts.HeaderLines = atoi(
 				nextString(allArgs, &i, "number of header lines required"))
+		case "--preview":
+			opts.Preview.command = nextString(allArgs, &i, "preview command required")
+		case "--no-preview":
+			opts.Preview.command = ""
+		case "--preview-window":
+			parsePreviewWindow(&opts.Preview,
+				nextString(allArgs, &i, "preview window layout required: [up|down|left|right][:SIZE[%]]"))
 		case "--no-margin":
 			opts.Margin = defaultMargin()
 		case "--margin":
 			opts.Margin = parseMargin(
 				nextString(allArgs, &i, "margin required (TRBL / TB,RL / T,RL,B / T,R,B,L)"))
+		case "--tabstop":
+			opts.Tabstop = nextInt(allArgs, &i, "tab stop required")
 		case "--version":
 			opts.Version = true
 		default:
@@ -823,17 +975,15 @@ func parseOptions(opts *Options, allArgs []string) {
 			} else if match, _ := optString(arg, "-s", "--sort="); match {
 				opts.Sort = 1 // Don't care
 			} else if match, value := optString(arg, "--toggle-sort="); match {
-				keymap = checkToggleSort(keymap, value)
-				opts.ToggleSort = true
+				parseToggleSort(opts.Keymap, value)
 			} else if match, value := optString(arg, "--expect="); match {
 				opts.Expect = parseKeyChords(value, "key names required")
 			} else if match, value := optString(arg, "--tiebreak="); match {
-				opts.Tiebreak = parseTiebreak(value)
+				opts.Criteria = parseTiebreak(value)
 			} else if match, value := optString(arg, "--color="); match {
 				opts.Theme = parseTheme(opts.Theme, value)
 			} else if match, value := optString(arg, "--bind="); match {
-				keymap, opts.Execmap, opts.ToggleSort =
-					parseKeymap(keymap, opts.Execmap, opts.ToggleSort, value)
+				parseKeymap(opts.Keymap, opts.Execmap, value)
 			} else if match, value := optString(arg, "--history="); match {
 				setHistory(value)
 			} else if match, value := optString(arg, "--history-size="); match {
@@ -842,8 +992,18 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.Header = strLines(value)
 			} else if match, value := optString(arg, "--header-lines="); match {
 				opts.HeaderLines = atoi(value)
+			} else if match, value := optString(arg, "--preview="); match {
+				opts.Preview.command = value
+			} else if match, value := optString(arg, "--preview-window="); match {
+				parsePreviewWindow(&opts.Preview, value)
 			} else if match, value := optString(arg, "--margin="); match {
 				opts.Margin = parseMargin(value)
+			} else if match, value := optString(arg, "--tabstop="); match {
+				opts.Tabstop = atoi(value)
+			} else if match, value := optString(arg, "--hscroll-off="); match {
+				opts.HscrollOff = atoi(value)
+			} else if match, value := optString(arg, "--jump-labels="); match {
+				opts.JumpLabels = value
 			} else {
 				errorExit("unknown option: " + arg)
 			}
@@ -854,24 +1014,51 @@ func parseOptions(opts *Options, allArgs []string) {
 		errorExit("header lines must be a non-negative integer")
 	}
 
-	// Change default actions for CTRL-N / CTRL-P when --history is used
-	if opts.History != nil {
-		if _, prs := keymap[curses.CtrlP]; !prs {
-			keymap[curses.CtrlP] = actPreviousHistory
+	if opts.HscrollOff < 0 {
+		errorExit("hscroll offset must be a non-negative integer")
+	}
+
+	if opts.Tabstop < 1 {
+		errorExit("tab stop must be a positive integer")
+	}
+
+	if len(opts.JumpLabels) == 0 {
+		errorExit("empty jump labels")
+	}
+
+	if validateJumpLabels {
+		for _, r := range opts.JumpLabels {
+			if r < 32 || r > 126 {
+				errorExit("non-ascii jump labels are not allowed")
+			}
 		}
-		if _, prs := keymap[curses.CtrlN]; !prs {
-			keymap[curses.CtrlN] = actNextHistory
+	}
+}
+
+func postProcessOptions(opts *Options) {
+	// Default actions for CTRL-N / CTRL-P when --history is set
+	if opts.History != nil {
+		if _, prs := opts.Keymap[curses.CtrlP]; !prs {
+			opts.Keymap[curses.CtrlP] = actPreviousHistory
+		}
+		if _, prs := opts.Keymap[curses.CtrlN]; !prs {
+			opts.Keymap[curses.CtrlN] = actNextHistory
 		}
 	}
 
-	// Override default key bindings
-	for key, act := range keymap {
-		opts.Keymap[key] = act
+	// Extend the default key map
+	keymap := defaultKeymap()
+	for key, act := range opts.Keymap {
+		if act == actToggleSort {
+			opts.ToggleSort = true
+		}
+		keymap[key] = act
 	}
+	opts.Keymap = keymap
 
 	// If we're not using extended search mode, --nth option becomes irrelevant
 	// if it contains the whole range
-	if opts.Mode == ModeFuzzy || len(opts.Nth) == 1 {
+	if !opts.Extended || len(opts.Nth) == 1 {
 		for _, r := range opts.Nth {
 			if r.begin == rangeEllipsis && r.end == rangeEllipsis {
 				opts.Nth = make([]Range, 0)
@@ -887,9 +1074,13 @@ func ParseOptions() *Options {
 
 	// Options from Env var
 	words, _ := shellwords.Parse(os.Getenv("FZF_DEFAULT_OPTS"))
-	parseOptions(opts, words)
+	if len(words) > 0 {
+		parseOptions(opts, words)
+	}
 
 	// Options from command-line arguments
 	parseOptions(opts, os.Args[1:])
+
+	postProcessOptions(opts)
 	return opts
 }

src/options_test.go

@@ -96,14 +96,16 @@ func TestIrrelevantNth(t *testing.T) {
 		opts := defaultOptions()
 		words := []string{"--nth", "..", "-x"}
 		parseOptions(opts, words)
+		postProcessOptions(opts)
 		if len(opts.Nth) != 0 {
 			t.Errorf("nth should be empty: %s", opts.Nth)
 		}
 	}
-	for _, words := range [][]string{[]string{"--nth", "..,3"}, []string{"--nth", "3,1.."}, []string{"--nth", "..-1,1"}} {
+	for _, words := range [][]string{[]string{"--nth", "..,3", "+x"}, []string{"--nth", "3,1..", "+x"}, []string{"--nth", "..-1,1", "+x"}} {
 		{
 			opts := defaultOptions()
 			parseOptions(opts, words)
+			postProcessOptions(opts)
 			if len(opts.Nth) != 0 {
 				t.Errorf("nth should be empty: %s", opts.Nth)
 			}
@@ -112,6 +114,7 @@ func TestIrrelevantNth(t *testing.T) {
 			opts := defaultOptions()
 			words = append(words, "-x")
 			parseOptions(opts, words)
+			postProcessOptions(opts)
 			if len(opts.Nth) != 2 {
 				t.Errorf("nth should not be empty: %s", opts.Nth)
 			}
@@ -120,14 +123,14 @@ func TestIrrelevantNth(t *testing.T) {
 }
 
 func TestParseKeys(t *testing.T) {
-	pairs := parseKeyChords("ctrl-z,alt-z,f2,@,Alt-a,!,ctrl-G,J,g", "")
+	pairs := parseKeyChords("ctrl-z,alt-z,f2,@,Alt-a,!,ctrl-G,J,g,ALT-enter,alt-SPACE", "")
 	check := func(i int, s string) {
 		if pairs[i] != s {
 			t.Errorf("%s != %s", pairs[i], s)
 		}
 	}
-	if len(pairs) != 9 {
-		t.Error(9)
+	if len(pairs) != 11 {
+		t.Error(11)
 	}
 	check(curses.CtrlZ, "ctrl-z")
 	check(curses.AltZ, "alt-z")
@@ -138,6 +141,8 @@ func TestParseKeys(t *testing.T) {
 	check(curses.CtrlA+'g'-'a', "ctrl-G")
 	check(curses.AltZ+'J', "J")
 	check(curses.AltZ+'g', "g")
+	check(curses.AltEnter, "ALT-enter")
+	check(curses.AltSpace, "alt-SPACE")
 
 	// Synonyms
 	pairs = parseKeyChords("enter,Return,space,tab,btab,esc,up,down,left,right", "")
@@ -231,15 +236,11 @@ func TestBind(t *testing.T) {
 	keymap := defaultKeymap()
 	execmap := make(map[int]string)
 	check(actBeginningOfLine, keymap[curses.CtrlA])
-	keymap, execmap, toggleSort :=
-		parseKeymap(keymap, execmap, false,
-			"ctrl-a:kill-line,ctrl-b:toggle-sort,c:page-up,alt-z:page-down,"+
-				"f1:execute(ls {}),f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
-				"alt-a:execute@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};"+
-				",,:abort,::accept,X:execute:\nfoobar,Y:execute(baz)")
-	if !toggleSort {
-		t.Errorf("toggleSort not set")
-	}
+	parseKeymap(keymap, execmap,
+		"ctrl-a:kill-line,ctrl-b:toggle-sort,c:page-up,alt-z:page-down,"+
+			"f1:execute(ls {}),f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
+			"alt-a:execute@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};"+
+			",,:abort,::accept,X:execute:\nfoobar,Y:execute(baz)")
 	check(actKillLine, keymap[curses.CtrlA])
 	check(actToggleSort, keymap[curses.CtrlB])
 	check(actPageUp, keymap[curses.AltZ+'c'])
@@ -259,15 +260,11 @@ func TestBind(t *testing.T) {
 	checkString("\nfoobar,Y:execute(baz)", execmap[curses.AltZ+'X'])
 
 	for idx, char := range []rune{'~', '!', '@', '#', '$', '%', '^', '&', '*', '|', ';', '/'} {
-		keymap, execmap, toggleSort =
-			parseKeymap(keymap, execmap, false, fmt.Sprintf("%d:execute%cfoobar%c", idx%10, char, char))
+		parseKeymap(keymap, execmap, fmt.Sprintf("%d:execute%cfoobar%c", idx%10, char, char))
 		checkString("foobar", execmap[curses.AltZ+int([]rune(fmt.Sprintf("%d", idx%10))[0])])
 	}
 
-	keymap, execmap, toggleSort = parseKeymap(keymap, execmap, false, "f1:abort")
-	if toggleSort {
-		t.Errorf("toggleSort set")
-	}
+	parseKeymap(keymap, execmap, "f1:abort")
 	check(actAbort, keymap[curses.F1])
 }
 
@@ -328,3 +325,53 @@ func TestParseNilTheme(t *testing.T) {
 		t.Errorf("color should now be enabled and customized")
 	}
 }
+
+func TestDefaultCtrlNP(t *testing.T) {
+	check := func(words []string, key int, expected actionType) {
+		opts := defaultOptions()
+		parseOptions(opts, words)
+		postProcessOptions(opts)
+		if opts.Keymap[key] != expected {
+			t.Error()
+		}
+	}
+	check([]string{}, curses.CtrlN, actDown)
+	check([]string{}, curses.CtrlP, actUp)
+
+	check([]string{"--bind=ctrl-n:accept"}, curses.CtrlN, actAccept)
+	check([]string{"--bind=ctrl-p:accept"}, curses.CtrlP, actAccept)
+
+	hist := "--history=/tmp/foo"
+	check([]string{hist}, curses.CtrlN, actNextHistory)
+	check([]string{hist}, curses.CtrlP, actPreviousHistory)
+
+	check([]string{hist, "--bind=ctrl-n:accept"}, curses.CtrlN, actAccept)
+	check([]string{hist, "--bind=ctrl-n:accept"}, curses.CtrlP, actPreviousHistory)
+
+	check([]string{hist, "--bind=ctrl-p:accept"}, curses.CtrlN, actNextHistory)
+	check([]string{hist, "--bind=ctrl-p:accept"}, curses.CtrlP, actAccept)
+}
+
+func TestToggle(t *testing.T) {
+	optsFor := func(words ...string) *Options {
+		opts := defaultOptions()
+		parseOptions(opts, words)
+		postProcessOptions(opts)
+		return opts
+	}
+
+	opts := optsFor()
+	if opts.ToggleSort {
+		t.Error()
+	}
+
+	opts = optsFor("--bind=a:toggle-sort")
+	if !opts.ToggleSort {
+		t.Error()
+	}
+
+	opts = optsFor("--bind=a:toggle-sort", "--bind=a:up")
+	if opts.ToggleSort {
+		t.Error()
+	}
+}

src/pattern.go

@@ -36,17 +36,20 @@ type term struct {
 	origText      []rune
 }
 
+type termSet []term
+
 // Pattern represents search pattern
 type Pattern struct {
-	mode          Mode
+	fuzzy         bool
+	extended      bool
 	caseSensitive bool
 	forward       bool
 	text          []rune
-	terms         []term
-	hasInvTerm    bool
+	termSets      []termSet
+	cacheable     bool
 	delimiter     Delimiter
 	nth           []Range
-	procFun       map[termType]func(bool, bool, []rune, []rune) (int, int)
+	procFun       map[termType]func(bool, bool, []rune, []rune) algo.Result
 }
 
 var (
@@ -63,7 +66,7 @@ func init() {
 
 func clearPatternCache() {
 	// We can uniquely identify the pattern for a given string since
-	// mode and caseMode do not change while the program is running
+	// search mode and caseMode do not change while the program is running
 	_patternCache = make(map[string]*Pattern)
 }
 
@@ -72,14 +75,13 @@ func clearChunkCache() {
 }
 
 // BuildPattern builds Pattern object from the given arguments
-func BuildPattern(mode Mode, caseMode Case, forward bool,
+func BuildPattern(fuzzy bool, extended bool, caseMode Case, forward bool,
 	nth []Range, delimiter Delimiter, runes []rune) *Pattern {
 
 	var asString string
-	switch mode {
-	case ModeExtended, ModeExtendedExact:
+	if extended {
 		asString = strings.Trim(string(runes), " ")
-	default:
+	} else {
 		asString = string(runes)
 	}
 
@@ -88,18 +90,23 @@ func BuildPattern(mode Mode, caseMode Case, forward bool,
 		return cached
 	}
 
-	caseSensitive, hasInvTerm := true, false
-	terms := []term{}
+	caseSensitive, cacheable := true, true
+	termSets := []termSet{}
 
-	switch mode {
-	case ModeExtended, ModeExtendedExact:
-		terms = parseTerms(mode, caseMode, asString)
-		for _, term := range terms {
-			if term.inv {
-				hasInvTerm = true
+	if extended {
+		termSets = parseTerms(fuzzy, caseMode, asString)
+	Loop:
+		for _, termSet := range termSets {
+			for idx, term := range termSet {
+				// If the query contains inverse search terms or OR operators,
+				// we cannot cache the search scope
+				if idx > 0 || term.inv {
+					cacheable = false
+					break Loop
+				}
 			}
 		}
-	default:
+	} else {
 		lowerString := strings.ToLower(asString)
 		caseSensitive = caseMode == CaseRespect ||
 			caseMode == CaseSmart && lowerString != asString
@@ -109,15 +116,16 @@ func BuildPattern(mode Mode, caseMode Case, forward bool,
 	}
 
 	ptr := &Pattern{
-		mode:          mode,
+		fuzzy:         fuzzy,
+		extended:      extended,
 		caseSensitive: caseSensitive,
 		forward:       forward,
 		text:          []rune(asString),
-		terms:         terms,
-		hasInvTerm:    hasInvTerm,
+		termSets:      termSets,
+		cacheable:     cacheable,
 		nth:           nth,
 		delimiter:     delimiter,
-		procFun:       make(map[termType]func(bool, bool, []rune, []rune) (int, int))}
+		procFun:       make(map[termType]func(bool, bool, []rune, []rune) algo.Result)}
 
 	ptr.procFun[termFuzzy] = algo.FuzzyMatch
 	ptr.procFun[termEqual] = algo.EqualMatch
@@ -129,9 +137,11 @@ func BuildPattern(mode Mode, caseMode Case, forward bool,
 	return ptr
 }
 
-func parseTerms(mode Mode, caseMode Case, str string) []term {
+func parseTerms(fuzzy bool, caseMode Case, str string) []termSet {
 	tokens := _splitRegex.Split(str, -1)
-	terms := []term{}
+	sets := []termSet{}
+	set := termSet{}
+	switchSet := false
 	for _, token := range tokens {
 		typ, inv, text := termFuzzy, false, token
 		lowerText := strings.ToLower(text)
@@ -141,20 +151,26 @@ func parseTerms(mode Mode, caseMode Case, str string) []term {
 			text = lowerText
 		}
 		origText := []rune(text)
-		if mode == ModeExtendedExact {
+		if !fuzzy {
 			typ = termExact
 		}
 
+		if text == "|" {
+			switchSet = false
+			continue
+		}
+
 		if strings.HasPrefix(text, "!") {
 			inv = true
 			text = text[1:]
 		}
 
 		if strings.HasPrefix(text, "'") {
-			if mode == ModeExtended {
+			// Flip exactness
+			if fuzzy {
 				typ = termExact
 				text = text[1:]
-			} else if mode == ModeExtendedExact {
+			} else {
 				typ = termFuzzy
 				text = text[1:]
 			}
@@ -172,23 +188,31 @@ func parseTerms(mode Mode, caseMode Case, str string) []term {
 		}
 
 		if len(text) > 0 {
-			terms = append(terms, term{
+			if switchSet {
+				sets = append(sets, set)
+				set = termSet{}
+			}
+			set = append(set, term{
 				typ:           typ,
 				inv:           inv,
 				text:          []rune(text),
 				caseSensitive: caseSensitive,
 				origText:      origText})
+			switchSet = true
 		}
 	}
-	return terms
+	if len(set) > 0 {
+		sets = append(sets, set)
+	}
+	return sets
 }
 
 // IsEmpty returns true if the pattern is effectively empty
 func (p *Pattern) IsEmpty() bool {
-	if p.mode == ModeFuzzy {
+	if !p.extended {
 		return len(p.text) == 0
 	}
-	return len(p.terms) == 0
+	return len(p.termSets) == 0
 }
 
 // AsString returns the search query in string type
@@ -198,15 +222,14 @@ func (p *Pattern) AsString() string {
 
 // CacheKey is used to build string to be used as the key of result cache
 func (p *Pattern) CacheKey() string {
-	if p.mode == ModeFuzzy {
+	if !p.extended {
 		return p.AsString()
 	}
 	cacheableTerms := []string{}
-	for _, term := range p.terms {
-		if term.inv {
-			continue
+	for _, termSet := range p.termSets {
+		if len(termSet) == 1 && !termSet[0].inv && (p.fuzzy || termSet[0].typ == termExact) {
+			cacheableTerms = append(cacheableTerms, string(termSet[0].origText))
 		}
-		cacheableTerms = append(cacheableTerms, string(term.origText))
 	}
 	return strings.Join(cacheableTerms, " ")
 }
@@ -217,7 +240,7 @@ func (p *Pattern) Match(chunk *Chunk) []*Item {
 
 	// ChunkCache: Exact match
 	cacheKey := p.CacheKey()
-	if !p.hasInvTerm { // Because we're excluding Inv-term from cache key
+	if p.cacheable {
 		if cached, found := _cache.Find(chunk, cacheKey); found {
 			return cached
 		}
@@ -242,7 +265,7 @@ Loop:
 
 	matches := p.matchChunk(space)
 
-	if !p.hasInvTerm {
+	if p.cacheable {
 		_cache.Add(chunk, cacheKey, matches)
 	}
 	return matches
@@ -250,17 +273,18 @@ Loop:
 
 func (p *Pattern) matchChunk(chunk *Chunk) []*Item {
 	matches := []*Item{}
-	if p.mode == ModeFuzzy {
+	if !p.extended {
 		for _, item := range *chunk {
-			if sidx, eidx, tlen := p.fuzzyMatch(item); sidx >= 0 {
+			offset, bonus := p.basicMatch(item)
+			if sidx := offset[0]; sidx >= 0 {
 				matches = append(matches,
-					dupItem(item, []Offset{Offset{int32(sidx), int32(eidx), int32(tlen)}}))
+					dupItem(item, []Offset{offset}, bonus))
 			}
 		}
 	} else {
 		for _, item := range *chunk {
-			if offsets := p.extendedMatch(item); len(offsets) == len(p.terms) {
-				matches = append(matches, dupItem(item, offsets))
+			if offsets, bonus := p.extendedMatch(item); len(offsets) == len(p.termSets) {
+				matches = append(matches, dupItem(item, offsets, bonus))
 			}
 		}
 	}
@@ -269,46 +293,62 @@ func (p *Pattern) matchChunk(chunk *Chunk) []*Item {
 
 // MatchItem returns true if the Item is a match
 func (p *Pattern) MatchItem(item *Item) bool {
-	if p.mode == ModeFuzzy {
-		sidx, _, _ := p.fuzzyMatch(item)
+	if !p.extended {
+		offset, _ := p.basicMatch(item)
+		sidx := offset[0]
 		return sidx >= 0
 	}
-	offsets := p.extendedMatch(item)
-	return len(offsets) == len(p.terms)
+	offsets, _ := p.extendedMatch(item)
+	return len(offsets) == len(p.termSets)
 }
 
-func dupItem(item *Item, offsets []Offset) *Item {
+func dupItem(item *Item, offsets []Offset, bonus int32) *Item {
 	sort.Sort(ByOrder(offsets))
 	return &Item{
 		text:        item.text,
 		origText:    item.origText,
 		transformed: item.transformed,
-		index:       item.index,
 		offsets:     offsets,
+		bonus:       bonus,
 		colors:      item.colors,
-		rank:        Rank{0, 0, item.index}}
+		rank:        buildEmptyRank(item.Index())}
 }
 
-func (p *Pattern) fuzzyMatch(item *Item) (int, int, int) {
+func (p *Pattern) basicMatch(item *Item) (Offset, int32) {
 	input := p.prepareInput(item)
-	return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.forward, p.text)
+	if p.fuzzy {
+		return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.forward, p.text)
+	}
+	return p.iter(algo.ExactMatchNaive, input, p.caseSensitive, p.forward, p.text)
 }
 
-func (p *Pattern) extendedMatch(item *Item) []Offset {
+func (p *Pattern) extendedMatch(item *Item) ([]Offset, int32) {
 	input := p.prepareInput(item)
 	offsets := []Offset{}
-	for _, term := range p.terms {
-		pfun := p.procFun[term.typ]
-		if sidx, eidx, tlen := p.iter(pfun, input, term.caseSensitive, p.forward, term.text); sidx >= 0 {
-			if term.inv {
+	var totalBonus int32
+	for _, termSet := range p.termSets {
+		var offset *Offset
+		var bonus int32
+		for _, term := range termSet {
+			pfun := p.procFun[term.typ]
+			off, pen := p.iter(pfun, input, term.caseSensitive, p.forward, term.text)
+			if sidx := off[0]; sidx >= 0 {
+				if term.inv {
+					continue
+				}
+				offset, bonus = &off, pen
 				break
+			} else if term.inv {
+				offset, bonus = &Offset{0, 0, 0}, 0
+				continue
 			}
-			offsets = append(offsets, Offset{int32(sidx), int32(eidx), int32(tlen)})
-		} else if term.inv {
-			offsets = append(offsets, Offset{0, 0, 0})
+		}
+		if offset != nil {
+			offsets = append(offsets, *offset)
+			totalBonus += bonus
 		}
 	}
-	return offsets
+	return offsets, totalBonus
 }
 
 func (p *Pattern) prepareInput(item *Item) []Token {
@@ -327,13 +367,16 @@ func (p *Pattern) prepareInput(item *Item) []Token {
 	return ret
 }
 
-func (p *Pattern) iter(pfun func(bool, bool, []rune, []rune) (int, int),
-	tokens []Token, caseSensitive bool, forward bool, pattern []rune) (int, int, int) {
+func (p *Pattern) iter(pfun func(bool, bool, []rune, []rune) algo.Result,
+	tokens []Token, caseSensitive bool, forward bool, pattern []rune) (Offset, int32) {
 	for _, part := range tokens {
-		prefixLength := part.prefixLength
-		if sidx, eidx := pfun(caseSensitive, forward, part.text, pattern); sidx >= 0 {
-			return sidx + prefixLength, eidx + prefixLength, part.trimLength
+		prefixLength := int32(part.prefixLength)
+		if res := pfun(caseSensitive, forward, part.text, pattern); res.Start >= 0 {
+			var sidx int32 = res.Start + prefixLength
+			var eidx int32 = res.End + prefixLength
+			return Offset{sidx, eidx, int32(part.trimLength)}, res.Bonus
 		}
 	}
-	return -1, -1, -1 // math.MaxUint16
+	// TODO: math.MaxUint16
+	return Offset{-1, -1, -1}, 0.0
 }

src/pattern_test.go

@@ -8,21 +8,26 @@ import (
 )
 
 func TestParseTermsExtended(t *testing.T) {
-	terms := parseTerms(ModeExtended, CaseSmart,
-		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ ^iii$")
+	terms := parseTerms(true, CaseSmart,
+		"| aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ | ^iii$ ^xxx | 'yyy | | zzz$ | !ZZZ |")
 	if len(terms) != 9 ||
-		terms[0].typ != termFuzzy || terms[0].inv ||
-		terms[1].typ != termExact || terms[1].inv ||
-		terms[2].typ != termPrefix || terms[2].inv ||
-		terms[3].typ != termSuffix || terms[3].inv ||
-		terms[4].typ != termFuzzy || !terms[4].inv ||
-		terms[5].typ != termExact || !terms[5].inv ||
-		terms[6].typ != termPrefix || !terms[6].inv ||
-		terms[7].typ != termSuffix || !terms[7].inv ||
-		terms[8].typ != termEqual || terms[8].inv {
+		terms[0][0].typ != termFuzzy || terms[0][0].inv ||
+		terms[1][0].typ != termExact || terms[1][0].inv ||
+		terms[2][0].typ != termPrefix || terms[2][0].inv ||
+		terms[3][0].typ != termSuffix || terms[3][0].inv ||
+		terms[4][0].typ != termFuzzy || !terms[4][0].inv ||
+		terms[5][0].typ != termExact || !terms[5][0].inv ||
+		terms[6][0].typ != termPrefix || !terms[6][0].inv ||
+		terms[7][0].typ != termSuffix || !terms[7][0].inv ||
+		terms[7][1].typ != termEqual || terms[7][1].inv ||
+		terms[8][0].typ != termPrefix || terms[8][0].inv ||
+		terms[8][1].typ != termExact || terms[8][1].inv ||
+		terms[8][2].typ != termSuffix || terms[8][2].inv ||
+		terms[8][3].typ != termFuzzy || !terms[8][3].inv {
 		t.Errorf("%s", terms)
 	}
-	for idx, term := range terms {
+	for idx, termSet := range terms[:8] {
+		term := termSet[0]
 		if len(term.text) != 3 {
 			t.Errorf("%s", term)
 		}
@@ -30,26 +35,31 @@ func TestParseTermsExtended(t *testing.T) {
 			t.Errorf("%s", term)
 		}
 	}
+	for _, term := range terms[8] {
+		if len(term.origText) != 4 {
+			t.Errorf("%s", term)
+		}
+	}
 }
 
 func TestParseTermsExtendedExact(t *testing.T) {
-	terms := parseTerms(ModeExtendedExact, CaseSmart,
+	terms := parseTerms(false, CaseSmart,
 		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$")
 	if len(terms) != 8 ||
-		terms[0].typ != termExact || terms[0].inv || len(terms[0].text) != 3 ||
-		terms[1].typ != termFuzzy || terms[1].inv || len(terms[1].text) != 3 ||
-		terms[2].typ != termPrefix || terms[2].inv || len(terms[2].text) != 3 ||
-		terms[3].typ != termSuffix || terms[3].inv || len(terms[3].text) != 3 ||
-		terms[4].typ != termExact || !terms[4].inv || len(terms[4].text) != 3 ||
-		terms[5].typ != termFuzzy || !terms[5].inv || len(terms[5].text) != 3 ||
-		terms[6].typ != termPrefix || !terms[6].inv || len(terms[6].text) != 3 ||
-		terms[7].typ != termSuffix || !terms[7].inv || len(terms[7].text) != 3 {
+		terms[0][0].typ != termExact || terms[0][0].inv || len(terms[0][0].text) != 3 ||
+		terms[1][0].typ != termFuzzy || terms[1][0].inv || len(terms[1][0].text) != 3 ||
+		terms[2][0].typ != termPrefix || terms[2][0].inv || len(terms[2][0].text) != 3 ||
+		terms[3][0].typ != termSuffix || terms[3][0].inv || len(terms[3][0].text) != 3 ||
+		terms[4][0].typ != termExact || !terms[4][0].inv || len(terms[4][0].text) != 3 ||
+		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)
 	}
 }
 
 func TestParseTermsEmpty(t *testing.T) {
-	terms := parseTerms(ModeExtended, CaseSmart, "' $ ^ !' !^ !$")
+	terms := parseTerms(true, CaseSmart, "' $ ^ !' !^ !$")
 	if len(terms) != 0 {
 		t.Errorf("%s", terms)
 	}
@@ -58,25 +68,25 @@ func TestParseTermsEmpty(t *testing.T) {
 func TestExact(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart, true,
+	pattern := BuildPattern(true, true, CaseSmart, true,
 		[]Range{}, Delimiter{}, []rune("'abc"))
-	sidx, eidx := algo.ExactMatchNaive(
-		pattern.caseSensitive, pattern.forward, []rune("aabbcc abc"), pattern.terms[0].text)
-	if sidx != 7 || eidx != 10 {
-		t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
+	res := algo.ExactMatchNaive(
+		pattern.caseSensitive, pattern.forward, []rune("aabbcc abc"), pattern.termSets[0][0].text)
+	if res.Start != 7 || res.End != 10 {
+		t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
 	}
 }
 
 func TestEqual(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart, true, []Range{}, Delimiter{}, []rune("^AbC$"))
+	pattern := BuildPattern(true, true, CaseSmart, true, []Range{}, Delimiter{}, []rune("^AbC$"))
 
-	match := func(str string, sidxExpected int, eidxExpected int) {
-		sidx, eidx := algo.EqualMatch(
-			pattern.caseSensitive, pattern.forward, []rune(str), pattern.terms[0].text)
-		if sidx != sidxExpected || eidx != eidxExpected {
-			t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
+	match := func(str string, sidxExpected int32, eidxExpected int32) {
+		res := algo.EqualMatch(
+			pattern.caseSensitive, pattern.forward, []rune(str), pattern.termSets[0][0].text)
+		if res.Start != sidxExpected || res.End != eidxExpected {
+			t.Errorf("%s / %d / %d", pattern.termSets, res.Start, res.End)
 		}
 	}
 	match("ABC", -1, -1)
@@ -86,17 +96,17 @@ func TestEqual(t *testing.T) {
 func TestCaseSensitivity(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pat1 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("abc"))
+	pat1 := BuildPattern(true, false, CaseSmart, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat2 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("Abc"))
+	pat2 := BuildPattern(true, false, CaseSmart, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat3 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("abc"))
+	pat3 := BuildPattern(true, false, CaseIgnore, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat4 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("Abc"))
+	pat4 := BuildPattern(true, false, CaseIgnore, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat5 := BuildPattern(ModeFuzzy, CaseRespect, true, []Range{}, Delimiter{}, []rune("abc"))
+	pat5 := BuildPattern(true, false, CaseRespect, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat6 := BuildPattern(ModeFuzzy, CaseRespect, true, []Range{}, Delimiter{}, []rune("Abc"))
+	pat6 := BuildPattern(true, false, CaseRespect, true, []Range{}, Delimiter{}, []rune("Abc"))
 
 	if string(pat1.text) != "abc" || pat1.caseSensitive != false ||
 		string(pat2.text) != "Abc" || pat2.caseSensitive != true ||
@@ -109,19 +119,19 @@ func TestCaseSensitivity(t *testing.T) {
 }
 
 func TestOrigTextAndTransformed(t *testing.T) {
-	pattern := BuildPattern(ModeExtended, CaseSmart, true, []Range{}, Delimiter{}, []rune("jg"))
+	pattern := BuildPattern(true, true, CaseSmart, true, []Range{}, Delimiter{}, []rune("jg"))
 	tokens := Tokenize([]rune("junegunn"), Delimiter{})
 	trans := Transform(tokens, []Range{Range{1, 1}})
 
 	origRunes := []rune("junegunn.choi")
-	for _, mode := range []Mode{ModeFuzzy, ModeExtended} {
+	for _, extended := range []bool{false, true} {
 		chunk := Chunk{
 			&Item{
 				text:        []rune("junegunn"),
 				origText:    &origRunes,
 				transformed: trans},
 		}
-		pattern.mode = mode
+		pattern.extended = extended
 		matches := pattern.matchChunk(&chunk)
 		if string(matches[0].text) != "junegunn" || string(*matches[0].origText) != "junegunn.choi" ||
 			matches[0].offsets[0][0] != 0 || matches[0].offsets[0][1] != 5 ||
@@ -130,3 +140,25 @@ func TestOrigTextAndTransformed(t *testing.T) {
 		}
 	}
 }
+
+func TestCacheKey(t *testing.T) {
+	test := func(extended bool, patStr string, expected string, cacheable bool) {
+		pat := BuildPattern(true, extended, CaseSmart, true, []Range{}, Delimiter{}, []rune(patStr))
+		if pat.CacheKey() != expected {
+			t.Errorf("Expected: %s, actual: %s", expected, pat.CacheKey())
+		}
+		if pat.cacheable != cacheable {
+			t.Errorf("Expected: %s, actual: %s (%s)", cacheable, pat.cacheable, patStr)
+		}
+		clearPatternCache()
+	}
+	test(false, "foo !bar", "foo !bar", true)
+	test(false, "foo | bar !baz", "foo | bar !baz", true)
+	test(true, "foo  bar  baz", "foo bar baz", true)
+	test(true, "foo !bar", "foo", false)
+	test(true, "foo !bar   baz", "foo baz", false)
+	test(true, "foo | bar baz", "baz", false)
+	test(true, "foo | bar | baz", "", false)
+	test(true, "foo | bar !baz", "", false)
+	test(true, "| | | foo", "foo", true)
+}

src/reader.go

@@ -4,7 +4,6 @@ import (
 	"bufio"
 	"io"
 	"os"
-	"os/exec"
 
 	"github.com/junegunn/fzf/src/util"
 )
@@ -59,7 +58,7 @@ func (r *Reader) readFromStdin() {
 }
 
 func (r *Reader) readFromCommand(cmd string) {
-	listCommand := exec.Command("sh", "-c", cmd)
+	listCommand := util.ExecCommand(cmd)
 	out, err := listCommand.StdoutPipe()
 	if err != nil {
 		return

src/util/util.go

@@ -5,6 +5,7 @@ import "C"
 
 import (
 	"os"
+	"os/exec"
 	"time"
 	"unicode/utf8"
 )
@@ -20,6 +21,14 @@ func Max(first int, items ...int) int {
 	return max
 }
 
+// Min returns the smallest integer
+func Min(first int, second int) int {
+	if first <= second {
+		return first
+	}
+	return second
+}
+
 // Min32 returns the smallest 32-bit integer
 func Min32(first int32, second int32) int32 {
 	if first <= second {
@@ -126,3 +135,12 @@ func TrimLen(runes []rune) int {
 	}
 	return i - j + 1
 }
+
+// ExecCommand executes the given command with $SHELL
+func ExecCommand(command string) *exec.Cmd {
+	shell := os.Getenv("SHELL")
+	if len(shell) == 0 {
+		shell = "sh"
+	}
+	return exec.Command(shell, "-c", command)
+}

test/fzf.vader

@@ -1,6 +1,7 @@
 Execute (Setup):
   let g:dir = fnamemodify(g:vader_file, ':p:h')
   Log 'Test directory: ' . g:dir
+  Save &acd
 
 Execute (fzf#run with dir option):
   let cwd = getcwd()
@@ -35,6 +36,39 @@ Execute (fzf#run with string source):
   let result = sort(fzf#run({ 'source': 'echo hi', 'options': '-f i' }))
   AssertEqual ['hi'], result
 
+Execute (fzf#run with dir option and noautochdir):
+  set noacd
+  let cwd = getcwd()
+  call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/tmp', 'options': '-1'})
+  " No change in working directory
+  AssertEqual cwd, getcwd()
+
+  call fzf#run({'source': ['/foobar'], 'sink': 'tabe', 'dir': '/tmp', 'options': '-1'})
+  AssertEqual cwd, getcwd()
+  tabclose
+  AssertEqual cwd, getcwd()
+
+Execute (Incomplete fzf#run with dir option and autochdir):
+  set acd
+  let cwd = getcwd()
+  call fzf#run({'source': [], 'sink': 'e', 'dir': '/tmp', 'options': '-0'})
+  " No change in working directory even if &acd is set
+  AssertEqual cwd, getcwd()
+
+Execute (fzf#run with dir option and autochdir):
+  set acd
+  let cwd = getcwd()
+  call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/tmp', 'options': '-1'})
+  " Working directory changed due to &acd
+  AssertEqual '/', getcwd()
+
+Execute (fzf#run with dir option and autochdir when final cwd is same as dir):
+  set acd
+  cd /tmp
+  call fzf#run({'source': ['/foobar'], 'sink': 'e', 'dir': '/', 'options': '-1'})
+  " Working directory changed due to &acd
+  AssertEqual '/', getcwd()
+
 Execute (Cleanup):
   unlet g:dir
   Restore

test/test_go.rb

@@ -6,9 +6,10 @@ require 'fileutils'
 
 DEFAULT_TIMEOUT = 20
 
+FILE = File.expand_path(__FILE__)
 base = File.expand_path('../../', __FILE__)
 Dir.chdir base
-FZF = "#{base}/bin/fzf"
+FZF = "FZF_DEFAULT_OPTS= FZF_DEFAULT_COMMAND= #{base}/bin/fzf"
 
 class NilClass
   def include? str
@@ -30,7 +31,7 @@ def wait
     return if yield
     sleep 0.05
   end
-  throw 'timeout'
+  raise 'timeout'
 end
 
 class Shell
@@ -89,6 +90,10 @@ class Tmux
     go("send-keys -t #{target} #{args}")
   end
 
+  def paste str
+    %x[tmux setb '#{str.gsub("'", "'\\''")}' \\; pasteb -t #{win} \\; send-keys -t #{win} Enter]
+  end
+
   def capture pane = 0
     File.unlink TEMPNAME while File.exists? TEMPNAME
     wait do
@@ -142,8 +147,10 @@ class TestBase < Minitest::Test
   attr_reader :tmux
 
   def tempname
+    @temp_suffix ||= 0
     [TEMPNAME,
-     caller_locations.map(&:label).find { |l| l =~ /^test_/ }].join '-'
+     caller_locations.map(&:label).find { |l| l =~ /^test_/ },
+     @temp_suffix].join '-'
   end
 
   def setup
@@ -157,6 +164,7 @@ class TestBase < Minitest::Test
     File.read(tempname)
   ensure
     File.unlink tempname while File.exists?(tempname)
+    @temp_suffix += 1
     tmux.prepare
   end
 
@@ -203,17 +211,17 @@ class TestGoFZF < TestBase
     tmux.send_keys '99', 'C-a', '1', 'C-f', '3', 'C-b', 'C-h', 'C-u', 'C-e', 'C-y', 'C-k', 'Tab', 'BTab'
     tmux.until { |lines| lines[-2] == '  856/100000' }
     lines = tmux.capture
-    assert_equal '> 1391',       lines[-4]
+    assert_equal '> 3910',       lines[-4]
     assert_equal '  391',        lines[-3]
     assert_equal '  856/100000', lines[-2]
     assert_equal '> 391',        lines[-1]
 
     tmux.send_keys :Enter
-    assert_equal '1391', readonce.chomp
+    assert_equal '3910', readonce.chomp
   end
 
   def test_fzf_default_command
-    tmux.send_keys "FZF_DEFAULT_COMMAND='echo hello' #{fzf}", :Enter
+    tmux.send_keys fzf.sub('FZF_DEFAULT_COMMAND=', "FZF_DEFAULT_COMMAND='echo hello'"), :Enter
     tmux.until { |lines| lines.last =~ /^>/ }
 
     tmux.send_keys :Enter
@@ -353,12 +361,12 @@ class TestGoFZF < TestBase
       tmux.send_keys :BTab, :BTab, :BTab
       tmux.until { |lines| lines[-2].include?('(3)') }
       tmux.send_keys :Enter
-      assert_equal ['5', '5', '15', '25'], readonce.split($/)
+      assert_equal ['5', '5', '50', '51'], readonce.split($/)
     end
   end
 
   def test_query_unicode
-    tmux.send_keys "(echo abc; echo 가나다) | #{fzf :query, '가다'}", :Enter
+    tmux.paste "(echo abc; echo 가나다) | #{fzf :query, '가다'}"
     tmux.until { |lines| lines[-2].include? '1/2' }
     tmux.send_keys :Enter
     assert_equal ['가나다'], readonce.split($/)
@@ -374,7 +382,7 @@ class TestGoFZF < TestBase
     tmux.send_keys :Enter
     tmux.until { |lines| lines[-1] == '>' }
     tmux.send_keys 'C-K', :Enter
-    assert_equal ['1919'], readonce.split($/)
+    assert_equal ['9090'], readonce.split($/)
   end
 
   def test_tac
@@ -390,6 +398,7 @@ class TestGoFZF < TestBase
     tmux.send_keys "seq 1 1000 | #{fzf :tac, :multi}", :Enter
     tmux.until { |lines| lines[-2].include? '1000/1000' }
     tmux.send_keys '99'
+    tmux.until { |lines| lines[-2].include? '28/1000' }
     tmux.send_keys :BTab, :BTab, :BTab
     tmux.until { |lines| lines[-2].include?('(3)') }
     tmux.send_keys :Enter
@@ -409,11 +418,12 @@ class TestGoFZF < TestBase
 
   def test_expect
     test = lambda do |key, feed, expected = key|
-      tmux.send_keys "seq 1 100 | #{fzf :expect, key}", :Enter
+      tmux.send_keys "seq 1 100 | #{fzf :expect, key}; sync", :Enter
       tmux.until { |lines| lines[-2].include? '100/100' }
       tmux.send_keys '55'
       tmux.until { |lines| lines[-2].include? '1/100' }
       tmux.send_keys *feed
+      tmux.prepare
       assert_equal [expected, '55'], readonce.split($/)
     end
     test.call 'ctrl-t', 'C-T'
@@ -424,6 +434,10 @@ class TestGoFZF < TestBase
     test.call 'f3', 'f3'
     test.call 'f2,f4', 'f2', 'f2'
     test.call 'f2,f4', 'f4', 'f4'
+    test.call 'alt-/', [:Escape, :/]
+    %w[f5 f6 f7 f8 f9 f10].each do |key|
+      test.call 'f5,f6,f7,f8,f9,f10', key, key
+    end
     test.call '@', '@'
   end
 
@@ -458,8 +472,8 @@ class TestGoFZF < TestBase
 
   def test_unicode_case
     writelines tempname, %w[строКА1 СТРОКА2 строка3 Строка4]
-    assert_equal %w[СТРОКА2 Строка4], `cat #{tempname} | #{FZF} -fС`.split($/)
-    assert_equal %w[строКА1 СТРОКА2 строка3 Строка4], `cat #{tempname} | #{FZF} -fс`.split($/)
+    assert_equal %w[СТРОКА2 Строка4], `#{FZF} -fС < #{tempname}`.split($/)
+    assert_equal %w[строКА1 СТРОКА2 строка3 Строка4], `#{FZF} -fс < #{tempname}`.split($/)
   end
 
   def test_tiebreak
@@ -471,7 +485,7 @@ class TestGoFZF < TestBase
     ]
     writelines tempname, input
 
-    assert_equal input, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=index`.split($/)
+    assert_equal input, `#{FZF} -ffoobar --tiebreak=index < #{tempname}`.split($/)
 
     by_length = %w[
       ----foobar--
@@ -479,8 +493,8 @@ class TestGoFZF < TestBase
       -------foobar-
       --foobar--------
     ]
-    assert_equal by_length, `cat #{tempname} | #{FZF} -ffoobar`.split($/)
-    assert_equal by_length, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=length`.split($/)
+    assert_equal by_length, `#{FZF} -ffoobar < #{tempname}`.split($/)
+    assert_equal by_length, `#{FZF} -ffoobar --tiebreak=length < #{tempname}`.split($/)
 
     by_begin = %w[
       --foobar--------
@@ -488,17 +502,175 @@ class TestGoFZF < TestBase
       -----foobar---
       -------foobar-
     ]
-    assert_equal by_begin, `cat #{tempname} | #{FZF} -ffoobar --tiebreak=begin`.split($/)
-    assert_equal by_begin, `cat #{tempname} | #{FZF} -f"!z foobar" -x --tiebreak begin`.split($/)
+    assert_equal by_begin, `#{FZF} -ffoobar --tiebreak=begin < #{tempname}`.split($/)
+    assert_equal by_begin, `#{FZF} -f"!z foobar" -x --tiebreak begin < #{tempname}`.split($/)
 
     assert_equal %w[
       -------foobar-
       ----foobar--
       -----foobar---
       --foobar--------
-    ], `cat #{tempname} | #{FZF} -ffoobar --tiebreak end`.split($/)
+    ], `#{FZF} -ffoobar --tiebreak end < #{tempname}`.split($/)
 
-    assert_equal input, `cat #{tempname} | #{FZF} -f"!z" -x --tiebreak end`.split($/)
+    assert_equal input, `#{FZF} -f"!z" -x --tiebreak end < #{tempname}`.split($/)
+  end
+
+  # Since 0.11.2
+  def test_tiebreak_list
+    input = %w[
+      f-o-o-b-a-r
+      foobar----
+      --foobar
+      ----foobar
+      foobar--
+      --foobar--
+      foobar
+    ]
+    writelines tempname, input
+
+    assert_equal %w[
+      foobar----
+      --foobar
+      ----foobar
+      foobar--
+      --foobar--
+      foobar
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=index < #{tempname}`.split($/)
+
+    by_length = %w[
+      foobar
+      --foobar
+      foobar--
+      foobar----
+      ----foobar
+      --foobar--
+      f-o-o-b-a-r
+    ]
+    assert_equal by_length, `#{FZF} -ffb < #{tempname}`.split($/)
+    assert_equal by_length, `#{FZF} -ffb --tiebreak=length < #{tempname}`.split($/)
+
+    assert_equal %w[
+      foobar
+      foobar--
+      --foobar
+      foobar----
+      --foobar--
+      ----foobar
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=length,begin < #{tempname}`.split($/)
+
+    assert_equal %w[
+      foobar
+      --foobar
+      foobar--
+      ----foobar
+      --foobar--
+      foobar----
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=length,end < #{tempname}`.split($/)
+
+    assert_equal %w[
+      foobar----
+      foobar--
+      foobar
+      --foobar
+      --foobar--
+      ----foobar
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=begin < #{tempname}`.split($/)
+
+    by_begin_end = %w[
+      foobar
+      foobar--
+      foobar----
+      --foobar
+      --foobar--
+      ----foobar
+      f-o-o-b-a-r
+    ]
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=begin,length < #{tempname}`.split($/)
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=begin,end < #{tempname}`.split($/)
+
+    assert_equal %w[
+      --foobar
+      ----foobar
+      foobar
+      foobar--
+      --foobar--
+      foobar----
+      f-o-o-b-a-r
+    ], `#{FZF} -ffb --tiebreak=end < #{tempname}`.split($/)
+
+    by_begin_end = %w[
+      foobar
+      --foobar
+      ----foobar
+      foobar--
+      --foobar--
+      foobar----
+      f-o-o-b-a-r
+    ]
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=end,begin < #{tempname}`.split($/)
+    assert_equal by_begin_end, `#{FZF} -ffb --tiebreak=end,length < #{tempname}`.split($/)
+  end
+
+  def test_tiebreak_white_prefix
+    writelines tempname, [
+      'f o o b a r',
+      '    foo bar',
+      '    foobar',
+      '----foo bar',
+      '----foobar',
+      '  foo bar',
+      '  foobar--',
+      '  foobar',
+      '--foo bar',
+      '--foobar',
+      'foobar',
+    ]
+
+    assert_equal [
+      '    foobar',
+      '  foobar',
+      'foobar',
+      '  foobar--',
+      '--foobar',
+      '----foobar',
+      '    foo bar',
+      '  foo bar',
+      '--foo bar',
+      '----foo bar',
+      'f o o b a r',
+    ], `#{FZF} -ffb < #{tempname}`.split($/)
+
+    assert_equal [
+      '    foobar',
+      '  foobar--',
+      '  foobar',
+      'foobar',
+      '--foobar',
+      '----foobar',
+      '    foo bar',
+      '  foo bar',
+      '--foo bar',
+      '----foo bar',
+      'f o o b a r',
+    ], `#{FZF} -ffb --tiebreak=begin < #{tempname}`.split($/)
+
+    assert_equal [
+      '    foobar',
+      '  foobar',
+      'foobar',
+      '  foobar--',
+      '--foobar',
+      '----foobar',
+      '    foo bar',
+      '  foo bar',
+      '--foo bar',
+      '----foo bar',
+      'f o o b a r',
+    ], `#{FZF} -ffb --tiebreak=begin,length < #{tempname}`.split($/)
   end
 
   def test_tiebreak_length_with_nth
@@ -516,7 +688,7 @@ class TestGoFZF < TestBase
       123:hello
       1234567:h
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -fh`.split($/)
+    assert_equal output, `#{FZF} -fh < #{tempname}`.split($/)
 
     output = %w[
       1234567:h
@@ -524,7 +696,7 @@ class TestGoFZF < TestBase
       1:hell
       123:hello
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -fh -n2 -d:`.split($/)
+    assert_equal output, `#{FZF} -fh -n2 -d: < #{tempname}`.split($/)
   end
 
   def test_tiebreak_length_with_nth_trim_length
@@ -543,16 +715,16 @@ class TestGoFZF < TestBase
       "apple juice   bottle 1",
       "apple  ui     bottle 2",
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -fa -n1`.split($/)
+    assert_equal output, `#{FZF} -fa -n1 < #{tempname}`.split($/)
 
     # len(1 ~ 2)
     output = [
-      "apple  ui     bottle 2",
       "app     ic    bottle 4",
-      "apple juice   bottle 1",
       "app     ice   bottle 3",
+      "apple  ui     bottle 2",
+      "apple juice   bottle 1",
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -fai -n1..2`.split($/)
+    assert_equal output, `#{FZF} -fai -n1..2 < #{tempname}`.split($/)
 
     # len(1) + len(2)
     output = [
@@ -561,17 +733,17 @@ class TestGoFZF < TestBase
       "apple  ui     bottle 2",
       "apple juice   bottle 1",
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -x -f"a i" -n1,2`.split($/)
+    assert_equal output, `#{FZF} -x -f"a i" -n1,2 < #{tempname}`.split($/)
 
     # len(2)
     output = [
-      "apple  ui     bottle 2",
       "app     ic    bottle 4",
       "app     ice   bottle 3",
+      "apple  ui     bottle 2",
       "apple juice   bottle 1",
     ]
-    assert_equal output, `cat #{tempname} | #{FZF} -fi -n2`.split($/)
-    assert_equal output, `cat #{tempname} | #{FZF} -fi -n2,1..2`.split($/)
+    assert_equal output, `#{FZF} -fi -n2 < #{tempname}`.split($/)
+    assert_equal output, `#{FZF} -fi -n2,1..2 < #{tempname}`.split($/)
   end
 
   def test_tiebreak_end_backward_scan
@@ -581,8 +753,8 @@ class TestGoFZF < TestBase
     ]
     writelines tempname, input
 
-    assert_equal input.reverse, `cat #{tempname} | #{FZF} -f fb`.split($/)
-    assert_equal input, `cat #{tempname} | #{FZF} -f fb --tiebreak=end`.split($/)
+    assert_equal input.reverse, `#{FZF} -f fb < #{tempname}`.split($/)
+    assert_equal input, `#{FZF} -f fb --tiebreak=end < #{tempname}`.split($/)
   end
 
   def test_invalid_cache
@@ -607,12 +779,19 @@ class TestGoFZF < TestBase
     assert_equal %w[4 5 6 9], readonce.split($/)
   end
 
+  def test_bind_print_query
+    tmux.send_keys "seq 1 1000 | #{fzf '-m --bind=ctrl-j:print-query'}", :Enter
+    tmux.until { |lines| lines[-2].end_with? '/1000' }
+    tmux.send_keys 'print-my-query', 'C-j'
+    assert_equal %w[print-my-query], readonce.split($/)
+  end
+
   def test_long_line
     data = '.' * 256 * 1024
     File.open(tempname, 'w') do |f|
       f << data
     end
-    assert_equal data, `cat #{tempname} | #{FZF} -f .`.chomp
+    assert_equal data, `#{FZF} -f . < #{tempname}`.chomp
   end
 
   def test_read0
@@ -694,25 +873,82 @@ class TestGoFZF < TestBase
 
   def test_execute
     output = '/tmp/fzf-test-execute'
-    opts = %[--bind \\"alt-a:execute(echo '[{}]' >> #{output}),alt-b:execute[echo '({}), ({})' >> #{output}],C:execute:echo '({}), [{}], @{}@' >> #{output}\\"]
-    tmux.send_keys "seq 100 | #{fzf opts}", :Enter
-    tmux.until { |lines| lines[-2].include? '100/100' }
-    tmux.send_keys :Escape, :a, :Escape, :a
+    opts = %[--bind \\"alt-a:execute(echo [{}] >> #{output}),alt-b:execute[echo /{}{}/ >> #{output}],C:execute:echo /{}{}{}/ >> #{output}\\"]
+    wait = lambda { |exp| tmux.until { |lines| lines[-2].include? exp } }
+    writelines tempname, %w[foo'bar foo"bar foo$bar]
+    tmux.send_keys "cat #{tempname} | #{fzf opts}; sync", :Enter
+    wait['3/3']
+    tmux.send_keys :Escape, :a
+    wait['/3']
+    tmux.send_keys :Escape, :a
+    wait['/3']
     tmux.send_keys :Up
-    tmux.send_keys :Escape, :b, :Escape, :b
+    tmux.send_keys :Escape, :b
+    wait['/3']
+    tmux.send_keys :Escape, :b
+    wait['/3']
     tmux.send_keys :Up
     tmux.send_keys :C
-    tmux.send_keys 'foobar'
-    tmux.until { |lines| lines[-2].include? '0/100' }
-    tmux.send_keys :Escape, :a, :Escape, :b, :Escape, :c
+    wait['3/3']
+    tmux.send_keys 'barfoo'
+    wait['0/3']
+    tmux.send_keys :Escape, :a
+    wait['/3']
+    tmux.send_keys :Escape, :b
+    wait['/3']
     tmux.send_keys :Enter
     readonce
-    assert_equal ['["1"]', '["1"]', '("2"), ("2")', '("2"), ("2")', '("3"), ["3"], @"3"@'],
+    assert_equal %w[[foo'bar] [foo'bar]
+                    /foo"barfoo"bar/ /foo"barfoo"bar/
+                    /foo$barfoo$barfoo$bar/],
       File.readlines(output).map(&:chomp)
   ensure
     File.unlink output rescue nil
   end
 
+  def test_execute_multi
+    output = '/tmp/fzf-test-execute-multi'
+    opts = %[--multi --bind \\"alt-a:execute-multi(echo {}/{} >> #{output}; sync)\\"]
+    writelines tempname, %w[foo'bar foo"bar foo$bar foobar]
+    tmux.send_keys "cat #{tempname} | #{fzf opts}", :Enter
+    tmux.until { |lines| lines[-2].include? '4/4' }
+    tmux.send_keys :Escape, :a
+    tmux.until { |lines| lines[-2].include? '/4' }
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.send_keys :Escape, :a
+    tmux.until { |lines| lines[-2].include? '/4' }
+    tmux.send_keys :Tab, :Tab
+    tmux.send_keys :Escape, :a
+    tmux.until { |lines| lines[-2].include? '/4' }
+    tmux.send_keys :Enter
+    tmux.prepare
+    readonce
+    assert_equal [%[foo'bar/foo'bar],
+                  %[foo'bar foo"bar foo$bar/foo'bar foo"bar foo$bar],
+                  %[foo'bar foo"bar foobar/foo'bar foo"bar foobar]],
+      File.readlines(output).map(&:chomp)
+  ensure
+    File.unlink output rescue nil
+  end
+
+  def test_execute_shell
+    # Custom script to use as $SHELL
+    output = tempname + '.out'
+    File.unlink output rescue nil
+    writelines tempname, ['#!/usr/bin/env bash', "echo $1 / $2 > #{output}", "sync"]
+    system "chmod +x #{tempname}"
+
+    tmux.send_keys "echo foo | SHELL=#{tempname} fzf --bind 'enter:execute:{}bar'", :Enter
+    tmux.until { |lines| lines[-2].include? '1/1' }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-2].include? '1/1' }
+    tmux.send_keys 'C-c'
+    tmux.prepare
+    assert_equal ["-c / 'foo'bar"], File.readlines(output).map(&:chomp)
+  ensure
+    File.unlink output rescue nil
+  end
+
   def test_cycle
     tmux.send_keys "seq 8 | #{fzf :cycle}", :Enter
     tmux.until { |lines| lines[-2].include? '8/8' }
@@ -739,12 +975,12 @@ class TestGoFZF < TestBase
         lines[-2].include?('/90') &&
         lines[-3]  == '  1' &&
         lines[-4]  == '  2' &&
-        lines[-13] == '> 15'
+        lines[-13] == '> 50'
       end
       tmux.send_keys :Down
     end
     tmux.send_keys :Enter
-    assert_equal '15', readonce.chomp
+    assert_equal '50', readonce.chomp
   end
 
   def test_header_lines_reverse
@@ -754,12 +990,12 @@ class TestGoFZF < TestBase
         lines[1].include?('/90') &&
         lines[2]  == '  1' &&
         lines[3]  == '  2' &&
-        lines[12] == '> 15'
+        lines[12] == '> 50'
       end
       tmux.send_keys :Up
     end
     tmux.send_keys :Enter
-    assert_equal '15', readonce.chomp
+    assert_equal '50', readonce.chomp
   end
 
   def test_header_lines_overflow
@@ -785,8 +1021,8 @@ class TestGoFZF < TestBase
   end
 
   def test_header
-    tmux.send_keys "seq 100 | #{fzf "--header \\\"\\$(head -5 #{__FILE__})\\\""}", :Enter
-    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.send_keys "seq 100 | #{fzf "--header \\\"\\$(head -5 #{FILE})\\\""}", :Enter
+    header = File.readlines(FILE).take(5).map(&:strip)
     tmux.until do |lines|
       lines[-2].include?('100/100') &&
       lines[-7..-3].map(&:strip) == header
@@ -794,8 +1030,8 @@ class TestGoFZF < TestBase
   end
 
   def test_header_reverse
-    tmux.send_keys "seq 100 | #{fzf "--header=\\\"\\$(head -5 #{__FILE__})\\\" --reverse"}", :Enter
-    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.send_keys "seq 100 | #{fzf "--header=\\\"\\$(head -5 #{FILE})\\\" --reverse"}", :Enter
+    header = File.readlines(FILE).take(5).map(&:strip)
     tmux.until do |lines|
       lines[1].include?('100/100') &&
       lines[2..6].map(&:strip) == header
@@ -803,8 +1039,8 @@ class TestGoFZF < TestBase
   end
 
   def test_header_and_header_lines
-    tmux.send_keys "seq 100 | #{fzf "--header-lines 10 --header \\\"\\$(head -5 #{__FILE__})\\\""}", :Enter
-    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.send_keys "seq 100 | #{fzf "--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 &&
@@ -813,8 +1049,8 @@ class TestGoFZF < TestBase
   end
 
   def test_header_and_header_lines_reverse
-    tmux.send_keys "seq 100 | #{fzf "--reverse --header-lines 10 --header \\\"\\$(head -5 #{__FILE__})\\\""}", :Enter
-    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.send_keys "seq 100 | #{fzf "--reverse --header-lines 10 --header \\\"\\$(head -5 #{FILE})\\\""}", :Enter
+    header = File.readlines(FILE).take(5).map(&:strip)
     tmux.until do |lines|
       lines[1].include?('90/90') &&
       lines[2...7].map(&:strip) == header &&
@@ -822,7 +1058,7 @@ class TestGoFZF < TestBase
     end
   end
 
-  def test_canel
+  def test_cancel
     tmux.send_keys "seq 10 | #{fzf "--bind 2:cancel"}", :Enter
     tmux.until { |lines| lines[-2].include?('10/10') }
     tmux.send_keys '123'
@@ -847,20 +1083,40 @@ class TestGoFZF < TestBase
     tmux.send_keys :Enter
   end
 
+  def test_tabstop
+    writelines tempname, ["f\too\tba\tr\tbaz\tbarfooq\tux"]
+    {
+      1 => '> f oo ba r baz barfooq ux',
+      2 => '> f oo  ba  r baz barfooq ux',
+      3 => '> f  oo ba r  baz   barfooq  ux',
+      4 => '> f   oo  ba  r   baz barfooq ux',
+      5 => '> f    oo   ba   r    baz  barfooq   ux',
+      6 => '> f     oo    ba    r     baz   barfooq     ux',
+      7 => '> f      oo     ba     r      baz    barfooq       ux',
+      8 => '> f       oo      ba      r       baz     barfooq ux',
+      9 => '> f        oo       ba       r        baz      barfooq  ux',
+    }.each do |ts, exp|
+      tmux.prepare
+      tmux.send_keys %[cat #{tempname} | fzf --tabstop=#{ts}], :Enter
+      tmux.until { |lines| exp.start_with? lines[-3].to_s.strip.sub(/\.\.$/, '') }
+      tmux.send_keys :Enter
+    end
+  end
+
   def test_with_nth
     writelines tempname, ['hello world ', 'byebye']
-    assert_equal 'hello world ', `cat #{tempname} | #{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1`.chomp
+    assert_equal 'hello world ', `#{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1 < #{tempname}`.chomp
   end
 
   def test_with_nth_ansi
     writelines tempname, ["\x1b[33mhello \x1b[34;1mworld\x1b[m ", 'byebye']
-    assert_equal 'hello world ', `cat #{tempname} | #{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1 --ansi`.chomp
+    assert_equal 'hello world ', `#{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1 --ansi < #{tempname}`.chomp
   end
 
   def test_with_nth_no_ansi
     src = "\x1b[33mhello \x1b[34;1mworld\x1b[m "
     writelines tempname, [src, 'byebye']
-    assert_equal src, `cat #{tempname} | #{FZF} -fhehe -x -n 2.. --with-nth 2,1,1 --no-ansi`.chomp
+    assert_equal src, `#{FZF} -fhehe -x -n 2.. --with-nth 2,1,1 --no-ansi < #{tempname}`.chomp
   end
 
   def test_exit_0_exit_code
@@ -893,21 +1149,121 @@ class TestGoFZF < TestBase
 
   def test_exitstatus_empty
     { '99' => '0', '999' => '1' }.each do |query, status|
-      tmux.send_keys "seq 100 | #{FZF} -q #{query}", :Enter
+      tmux.send_keys "seq 100 | #{FZF} -q #{query}; echo --\\$?--", :Enter
       tmux.until { |lines| lines[-2] =~ %r{ [10]/100} }
       tmux.send_keys :Enter
-
-      tmux.send_keys 'echo --\$?--'
-      tmux.until { |lines| lines.last.include? "echo --$?--" }
-      tmux.send_keys :Enter
       tmux.until { |lines| lines.last.include? "--#{status}--" }
     end
   end
 
+  def test_default_extended
+    assert_equal '100', `seq 100 | #{FZF} -f "1 00$"`.chomp
+    assert_equal '', `seq 100 | #{FZF} -f "1 00$" +x`.chomp
+  end
+
+  def test_exact
+    assert_equal 4, `seq 123 | #{FZF} -f 13`.lines.length
+    assert_equal 2, `seq 123 | #{FZF} -f 13 -e`.lines.length
+    assert_equal 4, `seq 123 | #{FZF} -f 13 +e`.lines.length
+  end
+
+  def test_or_operator
+    assert_equal %w[1 5 10], `seq 10 | #{FZF} -f "1 | 5"`.lines.map(&:chomp)
+    assert_equal %w[1 10 2 3 4 5 6 7 8 9],
+      `seq 10 | #{FZF} -f '1 | !1'`.lines.map(&:chomp)
+  end
+
+  def test_hscroll_off
+    writelines tempname, ['=' * 10000 + '0123456789']
+    [0, 3, 6].each do |off|
+      tmux.prepare
+      tmux.send_keys "#{FZF} --hscroll-off=#{off} -q 0 < #{tempname}", :Enter
+      tmux.until { |lines| lines[-3].end_with?((0..off).to_a.join + '..') }
+      tmux.send_keys '9'
+      tmux.until { |lines| lines[-3].end_with? '789' }
+      tmux.send_keys :Enter
+    end
+  end
+
+  def test_partial_caching
+    tmux.send_keys 'seq 1000 | fzf -e', :Enter
+    tmux.until { |lines| lines[-2] == '  1000/1000' }
+    tmux.send_keys 11
+    tmux.until { |lines| lines[-2] == '  19/1000' }
+    tmux.send_keys 'C-a', "'"
+    tmux.until { |lines| lines[-2] == '  28/1000' }
+    tmux.send_keys :Enter
+  end
+
+  def test_jump
+    tmux.send_keys "seq 1000 | #{fzf "--multi --jump-labels 12345 --bind 'ctrl-j:jump'"}", :Enter
+    tmux.until { |lines| lines[-2] == '  1000/1000' }
+    tmux.send_keys 'C-j'
+    tmux.until { |lines| lines[-7] == '5 5' }
+    tmux.until { |lines| lines[-8] == '  6' }
+    tmux.send_keys '5'
+    tmux.until { |lines| lines[-7] == '> 5' }
+    tmux.send_keys :Tab
+    tmux.until { |lines| lines[-7] == ' >5' }
+    tmux.send_keys 'C-j'
+    tmux.until { |lines| lines[-7] == '5>5' }
+    tmux.send_keys '2'
+    tmux.until { |lines| lines[-4] == '> 2' }
+    tmux.send_keys :Tab
+    tmux.until { |lines| lines[-4] == ' >2' }
+    tmux.send_keys 'C-j'
+    tmux.until { |lines| lines[-7] == '5>5' }
+
+    # Press any key other than jump labels to cancel jump
+    tmux.send_keys '6'
+    tmux.until { |lines| lines[-3] == '> 1' }
+    tmux.send_keys :Tab
+    tmux.until { |lines| lines[-3] == '>>1' }
+    tmux.send_keys :Enter
+    assert_equal %w[5 2 1], readonce.split($/)
+  end
+
+  def test_jump_accept
+    tmux.send_keys "seq 1000 | #{fzf "--multi --jump-labels 12345 --bind 'ctrl-j:jump-accept'"}", :Enter
+    tmux.until { |lines| lines[-2] == '  1000/1000' }
+    tmux.send_keys 'C-j'
+    tmux.until { |lines| lines[-7] == '5 5' }
+    tmux.send_keys '3'
+    assert_equal '3', readonce.chomp
+  end
+
+  def test_preview
+    tmux.send_keys %[seq 1000 | sed s/^2$// | #{FZF} --preview 'sleep 0.2; echo {{}-{}}' --bind ?:toggle-preview], :Enter
+    tmux.until { |lines| lines[1].include?(' {1-1}') }
+    tmux.send_keys :Up
+    tmux.until { |lines| lines[1].include?(' {-}') }
+    tmux.send_keys '555'
+    tmux.until { |lines| lines[1].include?(' {555-555}') }
+    tmux.send_keys '?'
+    tmux.until { |lines| !lines[1].include?(' {555-555}') }
+    tmux.send_keys '?'
+    tmux.until { |lines| lines[1].include?(' {555-555}') }
+    tmux.send_keys :BSpace
+    tmux.until { |lines| lines[-2].start_with? '  28/1000' }
+    tmux.send_keys 'foobar'
+    tmux.until { |lines| !lines[1].include?('{') }
+  end
+
+  def test_preview_hidden
+    tmux.send_keys %[seq 1000 | #{FZF} --preview 'echo {{}-{}}' --preview-window down:1:hidden --bind ?:toggle-preview], :Enter
+    tmux.until { |lines| lines[-1] == '>' }
+    tmux.send_keys '?'
+    tmux.until { |lines| lines[-2].include?(' {1-1}') }
+    tmux.send_keys '555'
+    tmux.until { |lines| lines[-2].include?(' {555-555}') }
+    tmux.send_keys '?'
+    tmux.until { |lines| lines[-1] == '> 555' }
+  end
+
 private
   def writelines path, lines
     File.unlink path while File.exists? path
-    File.open(path, 'w') { |f| f << lines.join($/) }
+    File.open(path, 'w') { |f| f << lines.join($/) + $/ }
   end
 end
 
@@ -959,6 +1315,35 @@ module TestShell
     tmux.until(0) { |lines| lines[-1].include? '1 2 3' }
   end
 
+  def test_ctrl_t_unicode
+    FileUtils.mkdir_p '/tmp/fzf-test'
+    tmux.paste 'cd /tmp/fzf-test; echo -n test1 > "fzf-unicode 테스트1"; echo -n test2 > "fzf-unicode 테스트2"'
+    tmux.prepare
+    tmux.send_keys 'cat ', 'C-t', pane: 0
+    tmux.until(1) { |lines| lines.item_count >= 1 }
+    tmux.send_keys 'fzf-unicode', pane: 1
+    tmux.until(1) { |lines| lines[-2].start_with? '  2/' }
+
+    tmux.send_keys '1', pane: 1
+    tmux.until(1) { |lines| lines[-2].start_with? '  1/' }
+    tmux.send_keys :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include? '(1)' }
+
+    tmux.send_keys :BSpace, pane: 1
+    tmux.until(1) { |lines| lines[-2].start_with? '  2/' }
+
+    tmux.send_keys '2', pane: 1
+    tmux.until(1) { |lines| lines[-2].start_with? '  1/' }
+    tmux.send_keys :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include? '(2)' }
+
+    tmux.send_keys :Enter, pane: 1
+    tmux.until { |lines| lines[-1].include?('cat') || lines[-2].include?('cat') }
+    tmux.until { |lines| lines[-1].include?('fzf-unicode') || lines[-2].include?('fzf-unicode') }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-1].include? 'test1test2' }
+  end
+
   def test_alt_c
     tmux.prepare
     tmux.send_keys :Escape, :c, pane: 0
@@ -970,6 +1355,22 @@ module TestShell
     tmux.until { |lines| lines[-1].end_with?(expected) }
   end
 
+  def test_alt_c_command
+    set_var 'FZF_ALT_C_COMMAND', 'echo /tmp'
+
+    tmux.prepare
+    tmux.send_keys 'cd /', :Enter
+
+    tmux.prepare
+    tmux.send_keys :Escape, :c, pane: 0
+    lines = tmux.until(1) { |lines| lines.item_count == 1 }
+    tmux.send_keys :Enter, pane: 1
+
+    tmux.prepare
+    tmux.send_keys :pwd, :Enter
+    tmux.until { |lines| lines[-1].end_with? '/tmp' }
+  end
+
   def test_ctrl_r
     tmux.prepare
     tmux.send_keys 'echo 1st', :Enter; tmux.prepare
@@ -999,6 +1400,8 @@ module CompletionTest
     tmux.prepare
     tmux.send_keys 'cat /tmp/fzf-test/10**', :Tab, pane: 0
     tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys ' !d'
+    tmux.until(1) { |lines| lines[-2].include?(' 2/') }
     tmux.send_keys :BTab, :BTab
     tmux.until(1) { |lines| lines[-2].include?('(2)') }
     tmux.send_keys :Enter
@@ -1034,17 +1437,34 @@ module CompletionTest
     tmux.send_keys 'C-u'
     tmux.send_keys 'cat /tmp/fzf\ test/**', :Tab, pane: 0
     tmux.until(1) { |lines| lines.item_count > 0 }
-    tmux.send_keys :Enter
+    tmux.send_keys 'C-K', :Enter
     tmux.until do |lines|
       tmux.send_keys 'C-L'
       lines[-1].end_with?('/tmp/fzf\ test/foobar')
     end
+
+    # Should include hidden files
+    (1..100).each { |i| FileUtils.touch "/tmp/fzf-test/.hidden-#{i}" }
+    tmux.send_keys 'C-u'
+    tmux.send_keys 'cat /tmp/fzf-test/hidden**', :Tab, pane: 0
+    tmux.until(1) do |lines|
+      tmux.send_keys 'C-L'
+      lines[-2].include?('100/') &&
+      lines[-3].include?('/tmp/fzf-test/.hidden-')
+    end
+    tmux.send_keys :Enter
   ensure
     ['/tmp/fzf-test', '/tmp/fzf test', '~/.fzf-home', 'no~such~user'].each do |f|
       FileUtils.rm_rf File.expand_path(f)
     end
   end
 
+  def test_file_completion_root
+    tmux.send_keys 'ls /**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count > 0 }
+    tmux.send_keys :Enter
+  end
+
   def test_dir_completion
     tmux.send_keys 'mkdir -p /tmp/fzf-test/d{1..100}; touch /tmp/fzf-test/d55/xxx', :Enter
     tmux.prepare
@@ -1091,6 +1511,65 @@ module CompletionTest
   ensure
     Process.kill 'KILL', pid.to_i rescue nil if pid
   end
+
+  def test_custom_completion
+    tmux.send_keys '_fzf_compgen_path() { echo "\$1"; seq 10; }', :Enter
+    tmux.prepare
+    tmux.send_keys 'ls /tmp/**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines.item_count == 11 }
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until(1) { |lines| lines[-2].include? '(3)' }
+    tmux.send_keys :Enter
+    tmux.until do |lines|
+      tmux.send_keys 'C-L'
+      lines[-1] == "ls /tmp 1 2"
+    end
+  end
+
+  def test_unset_completion
+    tmux.send_keys 'export FOO=BAR', :Enter
+    tmux.prepare
+
+    # Using tmux
+    tmux.send_keys 'unset FOO**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines[-2].include? ' 1/' }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-1] == 'unset FOO' }
+    tmux.send_keys 'C-c'
+
+    # FZF_TMUX=0
+    new_shell
+    tmux.send_keys 'unset FOO**', :Tab
+    tmux.until { |lines| lines[-2].include? ' 1/' }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-1] == 'unset FOO' }
+  end
+
+  def test_file_completion_unicode
+    FileUtils.mkdir_p '/tmp/fzf-test'
+    tmux.paste 'cd /tmp/fzf-test; echo -n test3 > "fzf-unicode 테스트1"; echo -n test4 > "fzf-unicode 테스트2"'
+    tmux.prepare
+    tmux.send_keys 'cat fzf-unicode**', :Tab, pane: 0
+    tmux.until(1) { |lines| lines[-2].start_with? '  2/' }
+
+    tmux.send_keys '1', pane: 1
+    tmux.until(1) { |lines| lines[-2].start_with? '  1/' }
+    tmux.send_keys :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include? '(1)' }
+
+    tmux.send_keys :BSpace, pane: 1
+    tmux.until(1) { |lines| lines[-2].start_with? '  2/' }
+
+    tmux.send_keys '2', pane: 1
+    tmux.until(1) { |lines| lines[-2].start_with? '  1/' }
+    tmux.send_keys :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include? '(2)' }
+
+    tmux.send_keys :Enter, pane: 1
+    tmux.until { |lines| lines[-1].include?('cat') || lines[-2].include?('cat') }
+    tmux.send_keys :Enter
+    tmux.until { |lines| lines[-1].include? 'test3test4' }
+  end
 end
 
 class TestBash < TestBase