0.10.2

> time cat /tmp/list | fzf-0.10.1-darwin_amd64 --ansi -fqwerty > /dev/null

    real    0m4.364s
    user    0m8.231s
    sys     0m0.820s

    > time cat /tmp/list | fzf --ansi -fqwerty > /dev/null

    real    0m4.624s
    user    0m5.755s
    sys     0m0.732s

CHANGELOG.md

@@ -1,6 +1,87 @@
 CHANGELOG
 =========
 
+0.10.2
+------
+
+### Fixes and improvements
+
+- Improvement in perceived response time of queries
+    - Eager, efficient rune array conversion
+- Graceful exit when failed to initialize ncurses (invalid $TERM)
+- Improved ranking algorithm when `--nth` option is set
+- Changed the default command not to fail when there are files whose names
+  start with dash
+
+0.10.1
+------
+
+### New features
+
+- Added `--margin` option
+- Added options for sticky header
+    - `--header-file`
+    - `--header-lines`
+- Added `cancel` action which clears the input or closes the finder when the
+  input is already empty
+    - e.g. `export FZF_DEFAULT_OPTS="--bind esc:cancel"`
+- Added `delete-char/eof` action to differentiate `CTRL-D` and `DEL`
+
+### Minor improvements/fixes
+
+- Fixed to allow binding colon and comma keys
+- Fixed ANSI processor to handle color regions spanning multiple lines
+
+0.10.0
+------
+
+### New features
+
+- More actions for `--bind`
+    - `select-all`
+    - `deselect-all`
+    - `toggle-all`
+    - `ignore`
+- `execute(...)` action for running arbitrary command without leaving fzf
+    - `fzf --bind "ctrl-m:execute(less {})"`
+    - `fzf --bind "ctrl-t:execute(tmux new-window -d 'vim {}')"`
+    - If the command contains parentheses, use any of the follows alternative
+      notations to avoid parse errors
+        - `execute[...]`
+        - `execute~...~`
+        - `execute!...!`
+        - `execute@...@`
+        - `execute#...#`
+        - `execute$...$`
+        - `execute%...%`
+        - `execute^...^`
+        - `execute&...&`
+        - `execute*...*`
+        - `execute;...;`
+        - `execute/.../`
+        - `execute|...|`
+        - `execute:...`
+            - This is the special form that frees you from parse errors as it
+              does not expect the closing character
+            - The catch is that it should be the last one in the
+              comma-separated list
+- Added support for optional search history
+    - `--history HISTORY_FILE`
+        - When used, `CTRL-N` and `CTRL-P` are automatically remapped to
+          `next-history` and `previous-history`
+    - `--history-size MAX_ENTRIES` (default: 1000)
+- Cyclic scrolling can be enabled with `--cycle`
+- Fixed the bug where the spinner was not spinning on idle input stream
+    - e.g. `sleep 100 | fzf`
+
+### Minor improvements/fixes
+
+- Added synonyms for key names that can be specified for `--bind`,
+  `--toggle-sort`, and `--expect`
+- Fixed the color of multi-select marker on the current line
+- Fixed to allow `^pattern$` in extended-search mode
+
+
 0.9.13
 ------
 

README.md

@@ -127,6 +127,13 @@ such as: `^music .mp3$ sbtrkt !rmx`
 If you don't need fuzzy matching and do not wish to "quote" every word, start
 fzf with `-e` or `--extended-exact` option.
 
+#### Environment variables
+
+- `FZF_DEFAULT_COMMAND`
+    - Default command to use when input is tty
+- `FZF_DEFAULT_OPTS`
+    - Default options. e.g. `export FZF_DEFAULT_OPTS="--extended --cycle"`
+
 Examples
 --------
 
@@ -140,8 +147,9 @@ Key bindings for command line
 The install script will setup the following key bindings for bash, zsh, and
 fish.
 
-- `CTRL-T` - Paste the selected file path(s) into the command line
+- `CTRL-T` - Paste the selected files and directories onto the command line
-- `CTRL-R` - Paste the selected command from history into 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
@@ -390,6 +398,9 @@ export FZF_DEFAULT_COMMAND='ag -l -g ""'
 
 # Now fzf (w/o pipe) will use ag instead of find
 fzf
+
+# To apply the command to CTRL-T as well
+export FZF_CTRL_T_COMMAND="$FZF_DEFAULT_COMMAND"
 ```
 
 #### `git ls-tree` for fast traversal

bin/fzf-tmux

@@ -82,7 +82,7 @@ while [ $# -gt 0 ]; do
   shift
 done
 
-if [ -z "$TMUX_PANE" ]; then
+if [ -z "$TMUX_PANE" ] || tmux list-panes -F '#F' | grep -q Z; then
   fzf "${args[@]}"
   exit $?
 fi
@@ -107,7 +107,7 @@ fail() {
 fzf="$(which fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
 [ -x "$fzf" ] || fail "fzf executable not found"
 
-envs="env "
+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")"
 

fzf

@@ -206,11 +206,11 @@ class FZF
         @expect = true
       when /^--expect=(.*)$/
         @expect = true
-      when '--toggle-sort', '--tiebreak', '--color', '--bind'
+      when '--toggle-sort', '--tiebreak', '--color', '--bind', '--history', '--history-size'
         argv.shift
       when '--tac', '--no-tac', '--sync', '--no-sync', '--hscroll', '--no-hscroll',
-           '--inline-info', '--no-inline-info', /^--bind=(.*)$/,
+           '--inline-info', '--no-inline-info', '--read0', '--cycle', /^--bind=(.*)$/,
-           /^--color=(.*)$/, /^--toggle-sort=(.*)$/, /^--tiebreak=(.*)$/
+           /^--color=(.*)$/, /^--toggle-sort=(.*)$/, /^--tiebreak=(.*)$/, /^--history(-max)?=(.*)$/
         # XXX
       else
         usage 1, "illegal option: #{o}"

install

@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 
-version=0.9.13
+[[ "$@" =~ --pre ]] && version=0.10.2 pre=1 ||
+                       version=0.10.2 pre=0
 
 cd $(dirname $BASH_SOURCE)
 fzf_base=$(pwd)
@@ -45,11 +46,13 @@ symlink() {
 
 download() {
   echo "Downloading bin/fzf ..."
-  if [[ ! $1 =~ dev && -x "$fzf_base"/bin/fzf ]]; then
+  if [ $pre = 0 ]; then
-    echo "  - Already exists"
+    if [ -x "$fzf_base"/bin/fzf ]; then
-    check_binary && return
+      echo "  - Already exists"
-  elif [ -x "$fzf_base"/bin/$1 ]; then
+      check_binary && return
-    symlink $1 && check_binary && return
+    elif [ -x "$fzf_base"/bin/$1 ]; then
+      symlink $1 && check_binary && return
+    fi
   fi
   mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
   if [ $? -ne 0 ]; then

man/man1/fzf.1

@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "June 2015" "fzf 0.9.13" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Aug 2015" "fzf 0.10.2" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -52,10 +52,10 @@ Comma-separated list of field index expressions for limiting search scope.
 See \fBFIELD INDEX EXPRESSION\fR for details.
 .TP
 .BI "--with-nth=" "N[,..]"
-Transform the item using the list of index expressions for search
+Transform each item using index expressions within finder
 .TP
 .BI "-d, --delimiter=" "STR"
-Field delimiter regex for \fI--nth\fR and \fI--with-nth\fR (default: AWK-style)
+Field delimiter regex for \fB--nth\fR and \fB--with-nth\fR (default: AWK-style)
 .SS Search result
 .TP
 .B "+s, --no-sort"
@@ -122,6 +122,7 @@ e.g. \fBfzf --color=bg+:24\fR
     \fBpointer \fRPointer to the current line
     \fBmarker  \fRMulti-select marker
     \fBspinner \fRStreaming input indicator
+    \fBheader  \fRHeader
 .RE
 .TP
 .B "--black"
@@ -130,6 +131,34 @@ Use black background
 .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
@@ -140,8 +169,7 @@ Display finder info inline with the query
 Input prompt (default: '> ')
 .TP
 .BI "--toggle-sort=" "KEY"
-Key to toggle sort (\fIctrl-[a-z]\fR, \fIalt-[a-z]\fR, \fIf[1-4]\fR,
+Key to toggle sort. For the list of the allowed key names, see \fB--bind\fR.
-or any single character)
 .TP
 .BI "--bind=" "KEYBINDS"
 Comma-separated list of custom key bindings. Each key binding expression
@@ -151,38 +179,122 @@ e.g. \fBfzf --bind=ctrl-j:accept,ctrl-k:kill-line\fR
 .RE
 
 .RS
-.B KEY:
+.B AVAILABLE KEYS:
-    \fIctrl-[a-z]\fR, \fIalt-[a-z]\fR, \fIf[1-4]\fR, or any single character
+    \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
-.B ACTION:
+  \fBACTION:               DEFAULT BINDINGS:
-    abort
+    \fBabort\fR                 \fIctrl-c  ctrl-g  ctrl-q  esc\fR
-    accept
+    \fBaccept\fR                \fIctrl-m  (enter)\fR
-    backward-char
+    \fBbackward-char\fR         \fIctrl-b  left\fR
-    backward-delete-char
+    \fBbackward-delete-char\fR  \fIctrl-h  bspace\fR
-    backward-kill-word
+    \fBbackward-kill-word\fR    \fIalt-bs\fR
-    backward-word
+    \fBbackward-word\fR         \fIalt-b   shift-left\fR
-    beginning-of-line
+    \fBbeginning-of-line\fR     \fIctrl-a  home\fR
-    clear-screen
+    \fBcancel\fR
-    delete-char
+    \fBclear-screen\fR          \fIctrl-l\fR
-    down
+    \fBdelete-char\fR           \fIdel\fR
-    end-of-line
+    \fBdelete-char/eof\fR       \fIctrl-d\fR
-    forward-char
+    \fBdeselect-all\fR
-    forward-word
+    \fBdown\fR                  \fIctrl-j  ctrl-n  down\fR
-    kill-line (not bound)
+    \fBend-of-line\fR           \fIctrl-e  end\fR
-    kill-word
+    \fBexecute(...)\fR          (see below for the details)
-    page-down
+    \fBforward-char\fR          \fIctrl-f  right\fR
-    page-up
+    \fBforward-word\fR          \fIalt-f   shift-right\fR
-    toggle (not bound)
+    \fBignore\fR
-    toggle-down
+    \fBkill-line\fR
-    toggle-sort (not bound; equivalent to \fB--toggle-sort\fR)
+    \fBkill-word\fR             \fIalt-d\fR
-    toggle-up
+    \fBnext-history\fR          (\fIctrl-n\fR on \fB--history\fR)
-    unix-line-discard
+    \fBpage-down\fR             \fIpgdn\fR
-    unix-word-rubout
+    \fBpage-up\fR               \fIpgup\fR
-    up
+    \fBprevious-history\fR      (\fIctrl-p\fR on \fB--history\fR)
-    yank
+    \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
+.TP
+.BI "--history=" "HISTORY_FILE"
+Load search history from the specified file and update the file on completion.
+When enabled, \fBCTRL-N\fR and \fBCTRL-P\fR are automatically remapped to
+\fBnext-history\fR and \fBprevious-history\fR.
+.TP
+.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.
+.TP
+.BI "--header-file=" "FILE"
+The content of the file will be printed as the sticky header. The lines in the
+file are displayed in order from top to bottom regardless of \fB--reverse\fR,
+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 Scripting
 .TP
 .BI "-q, --query=" "STR"
@@ -202,10 +314,9 @@ fzf becomes a fuzzy-version of grep.
 Print query as the first line
 .TP
 .BI "--expect=" "KEY[,..]"
-Comma-separated list of keys (\fIctrl-[a-z]\fR, \fIalt-[a-z]\fR, \fIf[1-4]\fR,
+Comma-separated list of keys that can be used to complete fzf in addition to
-or any single character) that can be used to complete fzf in addition to the
+the default enter key. When this option is set, fzf will print the name of the
-default enter key. When this option is set, fzf will print the name of the key
+key pressed as the first line of its output (or as the second line if
-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
@@ -225,7 +336,7 @@ e.g. \fBfzf --multi | fzf --sync\fR
 Default command to use when input is tty
 .TP
 .B FZF_DEFAULT_OPTS
-Default options. e.g. \fB--extended --ansi\fR
+Default options. e.g. \fBexport FZF_DEFAULT_OPTS="--extended --cycle"\fR
 
 .SH EXIT STATUS
 .BR 0 "      Normal exit"
@@ -235,7 +346,7 @@ Default options. e.g. \fB--extended --ansi\fR
 .SH FIELD INDEX EXPRESSION
 
 A field index expression can be a non-zero integer or a range expression
-([BEGIN]..[END]). \fI--nth\fR and \fI--with-nth\fR take a comma-separated list
+([BEGIN]..[END]). \fB--nth\fR and \fB--with-nth\fR take a comma-separated list
 of field index expressions.
 
 .SS Examples
@@ -258,7 +369,7 @@ of field index expressions.
 
 .SH EXTENDED SEARCH MODE
 
-With \fI-x\fR or \fI--extended\fR option, fzf will start in "extended-search
+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
 
@@ -278,8 +389,8 @@ from the result.
 
 .SS Extended-exact mode
 If you don't need fuzzy matching at all and do not wish to "quote" (prefixing
-with ') every word, start fzf with \fI-e\fR or \fI--extended-exact\fR option
+with ') every word, start fzf with \fB-e\fR or \fB--extended-exact\fR option
-(instead of \fI-x\fR or \fI--extended\fR).
+(instead of \fB-x\fR or \fB--extended\fR).
 
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)

plugin/fzf.vim

@@ -54,13 +54,17 @@ function! s:fzf_exec()
   return s:exec
 endfunction
 
+function! s:tmux_not_zoomed()
+  return system('tmux list-panes -F "#F"') !~# 'Z'
+endfunction
+
 function! s:tmux_enabled()
   if has('gui_running')
     return 0
   endif
 
   if exists('s:tmux')
-    return s:tmux
+    return s:tmux && s:tmux_not_zoomed()
   endif
 
   let s:tmux = 0
@@ -68,7 +72,7 @@ function! s:tmux_enabled()
     let output = system('tmux -V')
     let s:tmux = !v:shell_error && output >= 'tmux 1.7'
   endif
-  return s:tmux
+  return s:tmux && s:tmux_not_zoomed()
 endfunction
 
 function! s:shellesc(arg)
@@ -98,7 +102,7 @@ function! fzf#run(...) abort
 try
   let oshell = &shell
   set shell=sh
-  if has('nvim') && bufexists('[FZF]')
+  if has('nvim') && bufexists('term://*:FZF')
     echohl WarningMsg
     echomsg 'FZF is already running!'
     echohl None
@@ -248,13 +252,17 @@ function! s:calc_size(max, val)
   endif
 endfunction
 
+function! s:getpos()
+  return {'tab': tabpagenr(), 'win': winnr(), 'cnt': winnr('$')}
+endfunction
+
 function! s:split(dict)
   let directions = {
   \ 'up':    ['topleft', 'resize', &lines],
   \ 'down':  ['botright', 'resize', &lines],
   \ 'left':  ['vertical topleft', 'vertical resize', &columns],
   \ 'right': ['vertical botright', 'vertical resize', &columns] }
-  let s:ptab = tabpagenr()
+  let s:ppos = s:getpos()
   try
     for [dir, triple] in items(directions)
       let val = get(a:dict, dir, '')
@@ -280,32 +288,38 @@ 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 }
+  let fzf = { 'buf': bufnr('%'), 'dict': a:dict, 'temps': a:temps, 'name': 'FZF' }
   function! fzf.on_exit(id, code)
-    let tab = tabpagenr()
+    let pos = s:getpos()
-    if bufnr('') == self.buf
+    let inplace = pos == s:ppos " {'window': 'enew'}
-      " We use close instead of bd! since Vim does not close the split when
+    if !inplace
-      " there's no other listed buffer
+      if bufnr('') == self.buf
-      close
+        " We use close instead of bd! since Vim does not close the split when
-      " FIXME This should be unnecessary due to `bufhidden=wipe` but in some
+        " there's no other listed buffer (nvim +'set nobuflisted')
-      " cases Neovim fails to clean up the buffer and `bufexists('[FZF]')
+        close
-      " returns 1 even when it cannot be seen anywhere else. e.g. `FZF!`
+      endif
-      silent! execute 'bd!' self.buf
+      if pos.tab == s:ppos.tab
-    endif
+        wincmd p
-    if s:ptab == tab
+      endif
-      wincmd p
     endif
     call s:pushd(self.dict)
     try
       redraw!
       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
   endfunction
 
   call termopen(a:command, fzf)
-  silent file [FZF]
   startinsert
   return []
 endfunction
@@ -354,9 +368,15 @@ function! s:cmd_callback(lines) abort
   endif
   let key = remove(a:lines, 0)
   let cmd = get(s:action, key, 'e')
-  for item in a:lines
+  try
-    execute cmd s:escape(item)
+    let autochdir = &autochdir
-  endfor
+    set noautochdir
+    for item in a:lines
+      execute cmd s:escape(item)
+    endfor
+  finally
+    let &autochdir = autochdir
+  endtry
 endfunction
 
 function! s:cmd(bang, ...) abort

shell/completion.bash

@@ -45,7 +45,13 @@ _fzf_opts_completion() {
     --print-query
     --expect
     --toggle-sort
-    --sync"
+    --sync
+    --cycle
+    --history
+    --history-size
+    --header-file
+    --header-lines
+    --margin"
 
   case "${prev}" in
   --tiebreak)
@@ -56,6 +62,10 @@ _fzf_opts_completion() {
     COMPREPLY=( $(compgen -W "dark light 16 bw" -- ${cur}) )
     return 0
     ;;
+  --history|--header-file)
+    COMPREPLY=()
+    return 0
+    ;;
   esac
 
   if [[ ${cur} =~ ^-|\+ ]]; then
@@ -67,9 +77,10 @@ _fzf_opts_completion() {
 }
 
 _fzf_handle_dynamic_completion() {
-  local cmd orig ret
+  local cmd orig ret orig_cmd
   cmd="$1"
   shift
+  orig_cmd="$1"
 
   orig=$(eval "echo \$_fzf_orig_completion_$cmd")
   if [ -n "$orig" ] && type "$orig" > /dev/null 2>&1; then
@@ -77,7 +88,7 @@ _fzf_handle_dynamic_completion() {
   elif [ -n "$_fzf_completion_loader" ]; then
     _completion_loader "$@"
     ret=$?
-    eval $(complete | \grep "\-F.* $cmd$" | _fzf_orig_completion_filter)
+    eval $(complete | \grep "\-F.* $orig_cmd$" | _fzf_orig_completion_filter)
     source $BASH_SOURCE
     return $ret
   fi
@@ -207,7 +218,7 @@ EOF
 }
 
 # fzf options
-complete -F _fzf_opts_completion fzf
+complete -o default -F _fzf_opts_completion fzf
 
 d_cmds="cd pushd rmdir"
 f_cmds="

shell/key-bindings.bash

@@ -1,10 +1,11 @@
 # Key bindings
 # ------------
 __fzf_select__() {
-  command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
+  local cmd="${FZF_CTRL_T_COMMAND:-"command \\find -L . \\( -path '*/\\.*' -o -fstype 'dev' -o -fstype 'proc' \\) -prune \
     -o -type f -print \
     -o -type d -print \
-    -o -type l -print 2> /dev/null | sed 1d | cut -b3- | fzf -m | while read item; do
+    -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
+  eval "$cmd" | fzf -m | while read item; do
     printf '%q ' "$item"
   done
   echo
@@ -24,22 +25,28 @@ __fzf_select_tmux__() {
   else
     height="-l $height"
   fi
-  tmux split-window $height "cd $(printf %q "$PWD");bash -c 'source ~/.fzf.bash; tmux send-keys -t $TMUX_PANE \"\$(__fzf_select__)\"'"
+  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__)\"'"
 }
 
 __fzf_cd__() {
   local dir
-  dir=$(command find -L ${1:-.} \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
+  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"
 }
 
-__fzf_history__() {
+__fzf_history__() (
   local line
+  shopt -u nocaseglob nocasematch
   line=$(
     HISTTIMEFORMAT= history |
     $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r |
-    \grep '^ *[0-9]') && sed 's/ *\([0-9]*\)\** .*/!\1/' <<< "$line"
+    \grep '^ *[0-9]') &&
-}
+    if [[ $- =~ H ]]; then
+      sed 's/^ *\([0-9]*\)\** .*/!\1/' <<< "$line"
+    else
+      sed 's/^ *\([0-9]*\)\** *//' <<< "$line"
+    fi
+)
 
 __use_tmux=0
 [ -n "$TMUX_PANE" -a ${FZF_TMUX:-1} -ne 0 -a ${LINES:-40} -gt 15 ] && __use_tmux=1

shell/key-bindings.fish

@@ -14,10 +14,12 @@ function fzf_key_bindings
   end
 
   function __fzf_ctrl_t
-    command find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
+    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 (__fzfcmd) -m > $TMPDIR/fzf.result
+      -o -type l -print 2> /dev/null | sed 1d | cut -b3-"
+    eval $FZF_CTRL_T_COMMAND | eval (__fzfcmd) -m > $TMPDIR/fzf.result
     and commandline -i (cat $TMPDIR/fzf.result | __fzf_escape)
     commandline -f repaint
     rm -f $TMPDIR/fzf.result

shell/key-bindings.zsh

@@ -1,11 +1,14 @@
 # Key bindings
 # ------------
+if [[ $- =~ i ]]; then
+
 # CTRL-T - Paste the selected file path(s) into the command line
 __fsel() {
-  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- | $(__fzfcmd) -m | while read item; do
+    -o -type l -print 2> /dev/null | sed 1d | cut -b3-"}"
+  eval "$cmd" | $(__fzfcmd) -m | while read item; do
     printf '%q ' "$item"
   done
   echo
@@ -15,8 +18,6 @@ __fzfcmd() {
   [ ${FZF_TMUX:-1} -eq 1 ] && echo "fzf-tmux -d${FZF_TMUX_HEIGHT:-40%}" || echo "fzf"
 }
 
-if [[ $- =~ i ]]; then
-
 fzf-file-widget() {
   LBUFFER="${LBUFFER}$(__fsel)"
   zle redisplay
@@ -26,7 +27,7 @@ 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 \
+  cd "${$(command \find -L . \( -path '*/\.*' -o -fstype 'dev' -o -fstype 'proc' \) -prune \
     -o -type d -print 2> /dev/null | sed 1d | cut -b3- | $(__fzfcmd) +m):-.}"
   zle reset-prompt
 }
@@ -36,16 +37,10 @@ bindkey '\ec' fzf-cd-widget
 # CTRL-R - Paste the selected command from history into the command line
 fzf-history-widget() {
   local selected restore_no_bang_hist
-  if selected=$(fc -l 1 | $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r -q "$LBUFFER"); then
+  if selected=( $(fc -l 1 | $(__fzfcmd) +s --tac +m -n2..,.. --tiebreak=index --toggle-sort=ctrl-r -q "$LBUFFER") ); then
-    num=$(echo "$selected" | head -n1 | awk '{print $1}' | sed 's/[^0-9]//g')
+    num=$selected[1]
     if [ -n "$num" ]; then
-      LBUFFER=!$num
+      zle vi-fetch-history -n $num
-      if setopt | grep nobanghist > /dev/null; then
-        restore_no_bang_hist=1
-        unsetopt no_bang_hist
-      fi
-      zle expand-history
-      [ -n "$restore_no_bang_hist" ] && setopt no_bang_hist
     fi
   fi
   zle redisplay

src/algo/algo.go

@@ -1,6 +1,7 @@
 package algo
 
 import (
+	"strings"
 	"unicode"
 
 	"github.com/junegunn/fzf/src/util"
@@ -15,7 +16,7 @@ import (
  */
 
 // FuzzyMatch performs fuzzy-match
-func FuzzyMatch(caseSensitive bool, runes *[]rune, pattern []rune) (int, int) {
+func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 	if len(pattern) == 0 {
 		return 0, 0
 	}
@@ -33,7 +34,7 @@ func FuzzyMatch(caseSensitive bool, runes *[]rune, pattern []rune) (int, int) {
 	sidx := -1
 	eidx := -1
 
-	for index, char := range *runes {
+	for index, char := range runes {
 		// This is considerably faster than blindly applying strings.ToLower to the
 		// whole string
 		if !caseSensitive {
@@ -60,7 +61,7 @@ func FuzzyMatch(caseSensitive bool, runes *[]rune, pattern []rune) (int, int) {
 	if sidx >= 0 && eidx >= 0 {
 		pidx--
 		for index := eidx - 1; index >= sidx; index-- {
-			char := (*runes)[index]
+			char := runes[index]
 			if !caseSensitive {
 				if char >= 'A' && char <= 'Z' {
 					char += 32
@@ -87,12 +88,12 @@ func FuzzyMatch(caseSensitive bool, runes *[]rune, pattern []rune) (int, int) {
 //
 // We might try to implement better algorithms in the future:
 // http://en.wikipedia.org/wiki/String_searching_algorithm
-func ExactMatchNaive(caseSensitive bool, runes *[]rune, pattern []rune) (int, int) {
+func ExactMatchNaive(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 	if len(pattern) == 0 {
 		return 0, 0
 	}
 
-	numRunes := len(*runes)
+	numRunes := len(runes)
 	plen := len(pattern)
 	if numRunes < plen {
 		return -1, -1
@@ -100,7 +101,7 @@ func ExactMatchNaive(caseSensitive bool, runes *[]rune, pattern []rune) (int, in
 
 	pidx := 0
 	for index := 0; index < numRunes; index++ {
-		char := (*runes)[index]
+		char := runes[index]
 		if !caseSensitive {
 			if char >= 'A' && char <= 'Z' {
 				char += 32
@@ -122,13 +123,13 @@ func ExactMatchNaive(caseSensitive bool, runes *[]rune, pattern []rune) (int, in
 }
 
 // PrefixMatch performs prefix-match
-func PrefixMatch(caseSensitive bool, runes *[]rune, pattern []rune) (int, int) {
+func PrefixMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
-	if len(*runes) < len(pattern) {
+	if len(runes) < len(pattern) {
 		return -1, -1
 	}
 
 	for index, r := range pattern {
-		char := (*runes)[index]
+		char := runes[index]
 		if !caseSensitive {
 			char = unicode.ToLower(char)
 		}
@@ -140,7 +141,7 @@ func PrefixMatch(caseSensitive bool, runes *[]rune, pattern []rune) (int, int) {
 }
 
 // SuffixMatch performs suffix-match
-func SuffixMatch(caseSensitive bool, input *[]rune, pattern []rune) (int, int) {
+func SuffixMatch(caseSensitive bool, input []rune, pattern []rune) (int, int) {
 	runes := util.TrimRight(input)
 	trimmedLen := len(runes)
 	diff := trimmedLen - len(pattern)
@@ -159,3 +160,18 @@ func SuffixMatch(caseSensitive bool, input *[]rune, pattern []rune) (int, int) {
 	}
 	return trimmedLen - len(pattern), trimmedLen
 }
+
+// EqualMatch performs equal-match
+func EqualMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+	if len(runes) != len(pattern) {
+		return -1, -1
+	}
+	runesStr := string(runes)
+	if !caseSensitive {
+		runesStr = strings.ToLower(runesStr)
+	}
+	if runesStr == string(pattern) {
+		return 0, len(pattern)
+	}
+	return -1, -1
+}

src/algo/algo_test.go

@@ -5,12 +5,11 @@ import (
 	"testing"
 )
 
-func assertMatch(t *testing.T, fun func(bool, *[]rune, []rune) (int, int), caseSensitive bool, input string, pattern string, sidx int, eidx int) {
+func assertMatch(t *testing.T, fun func(bool, []rune, []rune) (int, int), caseSensitive bool, input string, pattern string, sidx int, eidx int) {
 	if !caseSensitive {
 		pattern = strings.ToLower(pattern)
 	}
-	runes := []rune(input)
+	s, e := fun(caseSensitive, []rune(input), []rune(pattern))
-	s, e := fun(caseSensitive, &runes, []rune(pattern))
 	if s != sidx {
 		t.Errorf("Invalid start index: %d (expected: %d, %s / %s)", s, sidx, input, pattern)
 	}

src/ansi.go

@@ -36,16 +36,18 @@ func init() {
 	ansiRegex = regexp.MustCompile("\x1b\\[[0-9;]*[mK]")
 }
 
-func extractColor(str *string) (*string, []ansiOffset) {
+func extractColor(str string, state *ansiState) (string, []ansiOffset, *ansiState) {
 	var offsets []ansiOffset
-
 	var output bytes.Buffer
-	var state *ansiState
+
+	if state != nil {
+		offsets = append(offsets, ansiOffset{[2]int32{0, 0}, *state})
+	}
 
 	idx := 0
-	for _, offset := range ansiRegex.FindAllStringIndex(*str, -1) {
+	for _, offset := range ansiRegex.FindAllStringIndex(str, -1) {
-		output.WriteString((*str)[idx:offset[0]])
+		output.WriteString(str[idx:offset[0]])
-		newState := interpretCode((*str)[offset[0]:offset[1]], state)
+		newState := interpretCode(str[offset[0]:offset[1]], state)
 
 		if !newState.equals(state) {
 			if state != nil {
@@ -67,7 +69,7 @@ func extractColor(str *string) (*string, []ansiOffset) {
 		idx = offset[1]
 	}
 
-	rest := (*str)[idx:]
+	rest := str[idx:]
 	if len(rest) > 0 {
 		output.WriteString(rest)
 		if state != nil {
@@ -75,8 +77,7 @@ func extractColor(str *string) (*string, []ansiOffset) {
 			(&offsets[len(offsets)-1]).offset[1] = int32(utf8.RuneCount(output.Bytes()))
 		}
 	}
-	outputStr := output.String()
+	return output.String(), offsets, state
-	return &outputStr, offsets
 }
 
 func interpretCode(ansiCode string, prevState *ansiState) *ansiState {

src/ansi_test.go

@@ -14,79 +14,89 @@ func TestExtractColor(t *testing.T) {
 	}
 
 	src := "hello world"
+	var state *ansiState
 	clean := "\x1b[0m"
-	check := func(assertion func(ansiOffsets []ansiOffset)) {
+	check := func(assertion func(ansiOffsets []ansiOffset, state *ansiState)) {
-		output, ansiOffsets := extractColor(&src)
+		output, ansiOffsets, newState := extractColor(src, state)
-		if *output != "hello world" {
+		state = newState
+		if output != "hello world" {
 			t.Errorf("Invalid output: {}", output)
 		}
 		fmt.Println(src, ansiOffsets, clean)
-		assertion(ansiOffsets)
+		assertion(ansiOffsets, state)
 	}
 
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) > 0 {
 			t.Fail()
 		}
 	})
 
+	state = nil
 	src = "\x1b[0mhello world"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) > 0 {
 			t.Fail()
 		}
 	})
 
+	state = nil
 	src = "\x1b[1mhello world"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 1 {
 			t.Fail()
 		}
 		assert(offsets[0], 0, 11, -1, -1, true)
 	})
 
+	state = nil
 	src = "\x1b[1mhello \x1b[mworld"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 1 {
 			t.Fail()
 		}
 		assert(offsets[0], 0, 6, -1, -1, true)
 	})
 
+	state = nil
 	src = "\x1b[1mhello \x1b[Kworld"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 1 {
 			t.Fail()
 		}
 		assert(offsets[0], 0, 11, -1, -1, true)
 	})
 
+	state = nil
 	src = "hello \x1b[34;45;1mworld"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 1 {
 			t.Fail()
 		}
 		assert(offsets[0], 6, 11, 4, 5, true)
 	})
 
+	state = nil
 	src = "hello \x1b[34;45;1mwor\x1b[34;45;1mld"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 1 {
 			t.Fail()
 		}
 		assert(offsets[0], 6, 11, 4, 5, true)
 	})
 
+	state = nil
 	src = "hello \x1b[34;45;1mwor\x1b[0mld"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 1 {
 			t.Fail()
 		}
 		assert(offsets[0], 6, 9, 4, 5, true)
 	})
 
+	state = nil
 	src = "hello \x1b[34;48;5;233;1mwo\x1b[38;5;161mr\x1b[0ml\x1b[38;5;161md"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 3 {
 			t.Fail()
 		}
@@ -96,12 +106,47 @@ func TestExtractColor(t *testing.T) {
 	})
 
 	// {38,48};5;{38,48}
+	state = nil
 	src = "hello \x1b[38;5;38;48;5;48;1mwor\x1b[38;5;48;48;5;38ml\x1b[0md"
-	check(func(offsets []ansiOffset) {
+	check(func(offsets []ansiOffset, state *ansiState) {
 		if len(offsets) != 2 {
 			t.Fail()
 		}
 		assert(offsets[0], 6, 9, 38, 48, true)
 		assert(offsets[1], 9, 10, 48, 38, true)
 	})
+
+	src = "hello \x1b[32;1mworld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		if state.fg != 2 || state.bg != -1 || !state.bold {
+			t.Fail()
+		}
+		assert(offsets[0], 6, 11, 2, -1, true)
+	})
+
+	src = "hello world"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 1 {
+			t.Fail()
+		}
+		if state.fg != 2 || state.bg != -1 || !state.bold {
+			t.Fail()
+		}
+		assert(offsets[0], 0, 11, 2, -1, true)
+	})
+
+	src = "hello \x1b[0;38;5;200;48;5;100mworld"
+	check(func(offsets []ansiOffset, state *ansiState) {
+		if len(offsets) != 2 {
+			t.Fail()
+		}
+		if state.fg != 200 || state.bg != 100 || state.bold {
+			t.Fail()
+		}
+		assert(offsets[0], 0, 6, 2, -1, true)
+		assert(offsets[1], 6, 11, 200, 100, false)
+	})
 }

src/chunklist.go

@@ -7,7 +7,7 @@ type Chunk []*Item // >>> []Item
 
 // ItemBuilder is a closure type that builds Item object from a pointer to a
 // string and an integer
-type ItemBuilder func(*string, int) *Item
+type ItemBuilder func([]byte, int) *Item
 
 // ChunkList is a list of Chunks
 type ChunkList struct {
@@ -26,8 +26,13 @@ func NewChunkList(trans ItemBuilder) *ChunkList {
 		trans:  trans}
 }
 
-func (c *Chunk) push(trans ItemBuilder, data *string, index int) {
+func (c *Chunk) push(trans ItemBuilder, data []byte, index int) bool {
-	*c = append(*c, trans(data, index))
+	item := trans(data, index)
+	if item != nil {
+		*c = append(*c, item)
+		return true
+	}
+	return false
 }
 
 // IsFull returns true if the Chunk is full
@@ -48,7 +53,7 @@ func CountItems(cs []*Chunk) int {
 }
 
 // Push adds the item to the list
-func (cl *ChunkList) Push(data string) {
+func (cl *ChunkList) Push(data []byte) bool {
 	cl.mutex.Lock()
 	defer cl.mutex.Unlock()
 
@@ -57,8 +62,11 @@ func (cl *ChunkList) Push(data string) {
 		cl.chunks = append(cl.chunks, &newChunk)
 	}
 
-	cl.lastChunk().push(cl.trans, &data, cl.count)
+	if cl.lastChunk().push(cl.trans, data, cl.count) {
-	cl.count++
+		cl.count++
+		return true
+	}
+	return false
 }
 
 // Snapshot returns immutable snapshot of the ChunkList

src/chunklist_test.go

@@ -6,8 +6,8 @@ import (
 )
 
 func TestChunkList(t *testing.T) {
-	cl := NewChunkList(func(s *string, i int) *Item {
+	cl := NewChunkList(func(s []byte, i int) *Item {
-		return &Item{text: s, rank: Rank{0, 0, uint32(i * 2)}}
+		return &Item{text: []rune(string(s)), rank: Rank{0, 0, uint32(i * 2)}}
 	})
 
 	// Snapshot
@@ -17,8 +17,8 @@ func TestChunkList(t *testing.T) {
 	}
 
 	// Add some data
-	cl.Push("hello")
+	cl.Push([]byte("hello"))
-	cl.Push("world")
+	cl.Push([]byte("world"))
 
 	// Previously created snapshot should remain the same
 	if len(snapshot) > 0 {
@@ -36,8 +36,8 @@ func TestChunkList(t *testing.T) {
 	if len(*chunk1) != 2 {
 		t.Error("Snapshot should contain only two items")
 	}
-	if *(*chunk1)[0].text != "hello" || (*chunk1)[0].rank.index != 0 ||
+	if string((*chunk1)[0].text) != "hello" || (*chunk1)[0].rank.index != 0 ||
-		*(*chunk1)[1].text != "world" || (*chunk1)[1].rank.index != 2 {
+		string((*chunk1)[1].text) != "world" || (*chunk1)[1].rank.index != 2 {
 		t.Error("Invalid data")
 	}
 	if chunk1.IsFull() {
@@ -46,7 +46,7 @@ func TestChunkList(t *testing.T) {
 
 	// Add more data
 	for i := 0; i < chunkSize*2; i++ {
-		cl.Push(fmt.Sprintf("item %d", i))
+		cl.Push([]byte(fmt.Sprintf("item %d", i)))
 	}
 
 	// Previous snapshot should remain the same
@@ -64,8 +64,8 @@ func TestChunkList(t *testing.T) {
 		t.Error("Unexpected number of items")
 	}
 
-	cl.Push("hello")
+	cl.Push([]byte("hello"))
-	cl.Push("world")
+	cl.Push([]byte("world"))
 
 	lastChunkCount := len(*snapshot[len(snapshot)-1])
 	if lastChunkCount != 2 {

src/constants.go

@@ -8,14 +8,14 @@ import (
 
 const (
 	// Current version
-	Version = "0.9.13"
+	version = "0.10.2"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
 	coordinatorDelayStep time.Duration = 10 * time.Millisecond
 
 	// Reader
-	defaultCommand = `find * -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null`
+	defaultCommand = `find . -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | sed s/^..//`
 
 	// Terminal
 	initialDelay    = 100 * time.Millisecond
@@ -32,6 +32,9 @@ const (
 
 	// Not to cache mergers with large lists
 	mergerCacheMax int = 100000
+
+	// History
+	defaultHistoryMax int = 1000
 )
 
 // fzf events
@@ -41,5 +44,6 @@ const (
 	EvtSearchNew
 	EvtSearchProgress
 	EvtSearchFin
+	EvtHeader
 	EvtClose
 )

src/core.go

@@ -44,6 +44,7 @@ Reader   -> EvtReadNew        -> Matcher  (restart)
 Terminal -> EvtSearchNew:bool -> Matcher  (restart)
 Matcher  -> EvtSearchProgress -> Terminal (update info)
 Matcher  -> EvtSearchFin      -> Terminal (update list)
+Matcher  -> EvtHeader         -> Terminal (update header)
 */
 
 // Run starts fzf
@@ -54,7 +55,7 @@ func Run(opts *Options) {
 	rankTiebreak = opts.Tiebreak
 
 	if opts.Version {
-		fmt.Println(Version)
+		fmt.Println(version)
 		os.Exit(0)
 	}
 
@@ -62,48 +63,68 @@ func Run(opts *Options) {
 	eventBox := util.NewEventBox()
 
 	// ANSI code processor
-	ansiProcessor := func(data *string) (*string, []ansiOffset) {
+	ansiProcessor := func(data []byte) ([]rune, []ansiOffset) {
-		// By default, we do nothing
+		return util.BytesToRunes(data), nil
+	}
+	ansiProcessorRunes := func(data []rune) ([]rune, []ansiOffset) {
 		return data, nil
 	}
 	if opts.Ansi {
 		if opts.Theme != nil {
-			ansiProcessor = func(data *string) (*string, []ansiOffset) {
+			var state *ansiState
-				return extractColor(data)
+			ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
+				trimmed, offsets, newState := extractColor(string(data), state)
+				state = newState
+				return []rune(trimmed), offsets
 			}
 		} else {
 			// When color is disabled but ansi option is given,
 			// we simply strip out ANSI codes from the input
-			ansiProcessor = func(data *string) (*string, []ansiOffset) {
+			ansiProcessor = func(data []byte) ([]rune, []ansiOffset) {
-				trimmed, _ := extractColor(data)
+				trimmed, _, _ := extractColor(string(data), nil)
-				return trimmed, nil
+				return []rune(trimmed), nil
 			}
 		}
+		ansiProcessorRunes = func(data []rune) ([]rune, []ansiOffset) {
+			return ansiProcessor([]byte(string(data)))
+		}
 	}
 
 	// Chunk list
 	var chunkList *ChunkList
+	header := make([]string, 0, opts.HeaderLines)
 	if len(opts.WithNth) == 0 {
-		chunkList = NewChunkList(func(data *string, index int) *Item {
+		chunkList = NewChunkList(func(data []byte, index int) *Item {
-			data, colors := ansiProcessor(data)
+			if len(header) < opts.HeaderLines {
+				header = append(header, string(data))
+				eventBox.Set(EvtHeader, header)
+				return nil
+			}
+			runes, colors := ansiProcessor(data)
 			return &Item{
-				text:   data,
+				text:   runes,
 				index:  uint32(index),
 				colors: colors,
 				rank:   Rank{0, 0, uint32(index)}}
 		})
 	} else {
-		chunkList = NewChunkList(func(data *string, index int) *Item {
+		chunkList = NewChunkList(func(data []byte, index int) *Item {
-			tokens := Tokenize(data, opts.Delimiter)
+			runes := util.BytesToRunes(data)
+			tokens := Tokenize(runes, opts.Delimiter)
 			trans := Transform(tokens, opts.WithNth)
+			if len(header) < opts.HeaderLines {
+				header = append(header, string(joinTokens(trans)))
+				eventBox.Set(EvtHeader, header)
+				return nil
+			}
 			item := Item{
 				text:     joinTokens(trans),
-				origText: data,
+				origText: &runes,
 				index:    uint32(index),
 				colors:   nil,
 				rank:     Rank{0, 0, uint32(index)}}
 
-			trimmed, colors := ansiProcessor(item.text)
+			trimmed, colors := ansiProcessorRunes(item.text)
 			item.text = trimmed
 			item.colors = colors
 			return &item
@@ -113,7 +134,9 @@ func Run(opts *Options) {
 	// Reader
 	streamingFilter := opts.Filter != nil && !sort && !opts.Tac && !opts.Sync
 	if !streamingFilter {
-		reader := Reader{func(str string) { chunkList.Push(str) }, eventBox}
+		reader := Reader{func(data []byte) bool {
+			return chunkList.Push(data)
+		}, eventBox, opts.ReadZero}
 		go reader.ReadSource()
 	}
 
@@ -134,12 +157,13 @@ func Run(opts *Options) {
 
 		if streamingFilter {
 			reader := Reader{
-				func(str string) {
+				func(runes []byte) bool {
-					item := chunkList.trans(&str, 0)
+					item := chunkList.trans(runes, 0)
-					if pattern.MatchItem(item) {
+					if item != nil && pattern.MatchItem(item) {
-						fmt.Println(*item.text)
+						fmt.Println(string(item.text))
 					}
-				}, eventBox}
+					return false
+				}, eventBox, opts.ReadZero}
 			reader.ReadSource()
 		} else {
 			eventBox.Unwatch(EvtReadNew)
@@ -206,6 +230,9 @@ func Run(opts *Options) {
 						terminal.UpdateProgress(val)
 					}
 
+				case EvtHeader:
+					terminal.UpdateHeader(value.([]string), opts.HeaderLines)
+
 				case EvtSearchFin:
 					switch val := value.(type) {
 					case *Merger:

src/curses/curses.go

@@ -4,15 +4,11 @@ package curses
 #include <ncurses.h>
 #include <locale.h>
 #cgo LDFLAGS: -lncurses
-void swapOutput() {
-  FILE* temp = stdout;
-  stdout = stderr;
-  stderr = temp;
-}
 */
 import "C"
 
 import (
+	"fmt"
 	"os"
 	"os/signal"
 	"syscall"
@@ -56,6 +52,7 @@ const (
 	Mouse
 
 	BTab
+	BSpace
 
 	Del
 	PgUp
@@ -98,6 +95,7 @@ const (
 	ColInfo
 	ColCursor
 	ColSelected
+	ColHeader
 	ColUser
 )
 
@@ -118,6 +116,7 @@ type ColorTheme struct {
 	Info         int16
 	Cursor       int16
 	Selected     int16
+	Header       int16
 }
 
 type Event struct {
@@ -142,6 +141,7 @@ var (
 	_colorMap     map[int]int
 	_prevDownTime time.Time
 	_clickY       []int
+	_screen       *C.SCREEN
 	Default16     *ColorTheme
 	Dark256       *ColorTheme
 	Light256      *ColorTheme
@@ -167,7 +167,8 @@ func init() {
 		Spinner:      C.COLOR_GREEN,
 		Info:         C.COLOR_WHITE,
 		Cursor:       C.COLOR_RED,
-		Selected:     C.COLOR_MAGENTA}
+		Selected:     C.COLOR_MAGENTA,
+		Header:       C.COLOR_CYAN}
 	Dark256 = &ColorTheme{
 		UseDefault:   true,
 		Fg:           15,
@@ -180,7 +181,8 @@ func init() {
 		Spinner:      148,
 		Info:         144,
 		Cursor:       161,
-		Selected:     168}
+		Selected:     168,
+		Header:       109}
 	Light256 = &ColorTheme{
 		UseDefault:   true,
 		Fg:           15,
@@ -193,7 +195,8 @@ func init() {
 		Spinner:      65,
 		Info:         101,
 		Cursor:       161,
-		Selected:     168}
+		Selected:     168,
+		Header:       31}
 }
 
 func attrColored(pair int, bold bool) C.int {
@@ -254,14 +257,16 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
 		// syscall.Dup2(int(in.Fd()), int(os.Stdin.Fd()))
 	}
 
-	C.swapOutput()
-
 	C.setlocale(C.LC_ALL, C.CString(""))
-	C.initscr()
+	_screen = C.newterm(nil, C.stderr, C.stdin)
+	if _screen == nil {
+		fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
+		os.Exit(1)
+	}
+	C.set_term(_screen)
 	if mouse {
 		C.mousemask(C.ALL_MOUSE_EVENTS, nil)
 	}
-	C.cbreak()
 	C.noecho()
 	C.raw() // stty dsusp undef
 
@@ -312,11 +317,12 @@ func initPairs(theme *ColorTheme, black bool) {
 	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)
 }
 
 func Close() {
 	C.endwin()
-	C.swapOutput()
+	C.delscreen(_screen)
 }
 
 func GetBytes() []byte {
@@ -481,10 +487,14 @@ func GetChar() Event {
 	}()
 
 	switch _buf[0] {
-	case CtrlC, CtrlG, CtrlQ:
+	case CtrlC:
 		return Event{CtrlC, 0, nil}
+	case CtrlG:
+		return Event{CtrlG, 0, nil}
+	case CtrlQ:
+		return Event{CtrlQ, 0, nil}
 	case 127:
-		return Event{CtrlH, 0, nil}
+		return Event{BSpace, 0, nil}
 	case ESC:
 		return escSequence(&sz)
 	}

src/history.go

@@ -0,0 +1,96 @@
+package fzf
+
+import (
+	"errors"
+	"io/ioutil"
+	"os"
+	"strings"
+)
+
+// History struct represents input history
+type History struct {
+	path     string
+	lines    []string
+	modified map[int]string
+	maxSize  int
+	cursor   int
+}
+
+// NewHistory returns the pointer to a new History struct
+func NewHistory(path string, maxSize int) (*History, error) {
+	fmtError := func(e error) error {
+		if os.IsPermission(e) {
+			return errors.New("permission denied: " + path)
+		}
+		return errors.New("invalid history file: " + e.Error())
+	}
+
+	// Read history file
+	data, err := ioutil.ReadFile(path)
+	if err != nil {
+		// If it doesn't exist, check if we can create a file with the name
+		if os.IsNotExist(err) {
+			data = []byte{}
+			if err := ioutil.WriteFile(path, data, 0600); err != nil {
+				return nil, fmtError(err)
+			}
+		} else {
+			return nil, fmtError(err)
+		}
+	}
+	// Split lines and limit the maximum number of lines
+	lines := strings.Split(strings.Trim(string(data), "\n"), "\n")
+	if len(lines[len(lines)-1]) > 0 {
+		lines = append(lines, "")
+	}
+	return &History{
+		path:     path,
+		maxSize:  maxSize,
+		lines:    lines,
+		modified: make(map[int]string),
+		cursor:   len(lines) - 1}, nil
+}
+
+func (h *History) append(line string) error {
+	// We don't append empty lines
+	if len(line) == 0 {
+		return nil
+	}
+
+	lines := append(h.lines[:len(h.lines)-1], line)
+	if len(lines) > h.maxSize {
+		lines = lines[len(lines)-h.maxSize : len(lines)]
+	}
+	h.lines = append(lines, "")
+	return ioutil.WriteFile(h.path, []byte(strings.Join(h.lines, "\n")), 0600)
+}
+
+func (h *History) override(str string) {
+	// You can update the history but they're not written to the file
+	if h.cursor == len(h.lines)-1 {
+		h.lines[h.cursor] = str
+	} else if h.cursor < len(h.lines)-1 {
+		h.modified[h.cursor] = str
+	}
+}
+
+func (h *History) current() string {
+	if str, prs := h.modified[h.cursor]; prs {
+		return str
+	}
+	return h.lines[h.cursor]
+}
+
+func (h *History) previous() string {
+	if h.cursor > 0 {
+		h.cursor--
+	}
+	return h.current()
+}
+
+func (h *History) next() string {
+	if h.cursor < len(h.lines)-1 {
+		h.cursor++
+	}
+	return h.current()
+}

src/history_test.go

@@ -0,0 +1,59 @@
+package fzf
+
+import (
+	"os/user"
+	"testing"
+)
+
+func TestHistory(t *testing.T) {
+	maxHistory := 50
+
+	// Invalid arguments
+	user, _ := user.Current()
+	paths := []string{"/etc", "/proc"}
+	if user.Name != "root" {
+		paths = append(paths, "/etc/sudoers")
+	}
+	for _, path := range paths {
+		if _, e := NewHistory(path, maxHistory); e == nil {
+			t.Error("Error expected for: " + path)
+		}
+	}
+	{ // Append lines
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		for i := 0; i < maxHistory+10; i++ {
+			h.append("foobar")
+		}
+	}
+	{ // Read lines
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		if len(h.lines) != maxHistory+1 {
+			t.Errorf("Expected: %d, actual: %d\n", maxHistory+1, len(h.lines))
+		}
+		for i := 0; i < maxHistory; i++ {
+			if h.lines[i] != "foobar" {
+				t.Error("Expected: foobar, actual: " + h.lines[i])
+			}
+		}
+	}
+	{ // Append lines
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		h.append("barfoo")
+		h.append("")
+		h.append("foobarbaz")
+	}
+	{ // Read lines again
+		h, _ := NewHistory("/tmp/fzf-history", maxHistory)
+		if len(h.lines) != maxHistory+1 {
+			t.Errorf("Expected: %d, actual: %d\n", maxHistory+1, len(h.lines))
+		}
+		compare := func(idx int, exp string) {
+			if h.lines[idx] != exp {
+				t.Errorf("Expected: %s, actual: %s\n", exp, h.lines[idx])
+			}
+		}
+		compare(maxHistory-3, "foobar")
+		compare(maxHistory-2, "barfoo")
+		compare(maxHistory-1, "foobarbaz")
+	}
+}

src/item.go

@@ -17,9 +17,9 @@ type colorOffset struct {
 
 // Item represents each input line
 type Item struct {
-	text        *string
+	text        []rune
-	origText    *string
+	origText    *[]rune
-	transformed *[]Token
+	transformed []Token
 	index       uint32
 	offsets     []Offset
 	colors      []ansiOffset
@@ -37,14 +37,14 @@ type Rank struct {
 var rankTiebreak tiebreak
 
 // Rank calculates rank of the Item
-func (i *Item) Rank(cache bool) Rank {
+func (item *Item) Rank(cache bool) Rank {
-	if cache && (i.rank.matchlen > 0 || i.rank.tiebreak > 0) {
+	if cache && (item.rank.matchlen > 0 || item.rank.tiebreak > 0) {
-		return i.rank
+		return item.rank
 	}
 	matchlen := 0
 	prevEnd := 0
 	minBegin := math.MaxUint16
-	for _, offset := range i.offsets {
+	for _, offset := range item.offsets {
 		begin := int(offset[0])
 		end := int(offset[1])
 		if prevEnd > begin {
@@ -63,13 +63,22 @@ func (i *Item) Rank(cache bool) Rank {
 	var tiebreak uint16
 	switch rankTiebreak {
 	case byLength:
-		tiebreak = uint16(len(*i.text))
+		// It is guaranteed that .transformed in not null in normal execution
+		if item.transformed != nil {
+			lenSum := 0
+			for _, token := range item.transformed {
+				lenSum += len(token.text)
+			}
+			tiebreak = uint16(lenSum)
+		} else {
+			tiebreak = uint16(len(item.text))
+		}
 	case byBegin:
-		// We can't just look at i.offsets[0][0] because it can be an inverse term
+		// 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(*i.text) - prevEnd)
+			tiebreak = uint16(1 + len(item.text) - prevEnd)
 		} else {
 			// Empty offsets due to inverse terms.
 			tiebreak = 1
@@ -77,19 +86,26 @@ func (i *Item) Rank(cache bool) Rank {
 	case byIndex:
 		tiebreak = 1
 	}
-	rank := Rank{uint16(matchlen), tiebreak, i.index}
+	rank := Rank{uint16(matchlen), tiebreak, item.index}
 	if cache {
-		i.rank = rank
+		item.rank = rank
 	}
 	return rank
 }
 
 // AsString returns the original string
-func (i *Item) AsString() string {
+func (item *Item) AsString() string {
-	if i.origText != nil {
+	return *item.StringPtr()
-		return *i.origText
+}
+
+// StringPtr returns the pointer to the original string
+func (item *Item) StringPtr() *string {
+	runes := item.text
+	if item.origText != nil {
+		runes = *item.origText
 	}
-	return *i.text
+	str := string(runes)
+	return &str
 }
 
 func (item *Item) colorOffsets(color int, bold bool, current bool) []colorOffset {

src/item_test.go

@@ -39,14 +39,14 @@ func TestRankComparison(t *testing.T) {
 
 // Match length, string length, index
 func TestItemRank(t *testing.T) {
-	strs := []string{"foo", "foobar", "bar", "baz"}
+	strs := [][]rune{[]rune("foo"), []rune("foobar"), []rune("bar"), []rune("baz")}
-	item1 := Item{text: &strs[0], index: 1, offsets: []Offset{}}
+	item1 := Item{text: strs[0], index: 1, offsets: []Offset{}}
 	rank1 := item1.Rank(true)
 	if rank1.matchlen != 0 || rank1.tiebreak != 3 || rank1.index != 1 {
 		t.Error(item1.Rank(true))
 	}
 	// Only differ in index
-	item2 := Item{text: &strs[0], index: 0, offsets: []Offset{}}
+	item2 := Item{text: strs[0], index: 0, offsets: []Offset{}}
 
 	items := []*Item{&item1, &item2}
 	sort.Sort(ByRelevance(items))
@@ -62,10 +62,10 @@ 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}}}
+	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}}}
+	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}}}
+	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}}}
+	item6 := Item{text: strs[2], rank: Rank{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 ||

src/matcher.go

@@ -96,7 +96,7 @@ func (m *Matcher) Loop() {
 		}
 
 		if !cancelled {
-			if merger.Cacheable() {
+			if merger.cacheable() {
 				m.mergerCache[patternString] = merger
 			}
 			merger.final = request.final

src/merger.go

@@ -82,7 +82,7 @@ func (mg *Merger) Get(idx int) *Item {
 	panic(fmt.Sprintf("Index out of bounds (unsorted, %d/%d)", idx, mg.count))
 }
 
-func (mg *Merger) Cacheable() bool {
+func (mg *Merger) cacheable() bool {
 	return mg.count < mergerCacheMax
 }
 

src/merger_test.go

@@ -22,7 +22,7 @@ func randItem() *Item {
 		offsets[idx] = Offset{sidx, eidx}
 	}
 	return &Item{
-		text:    &str,
+		text:    []rune(str),
 		index:   rand.Uint32(),
 		offsets: offsets}
 }

src/options.go

@@ -2,6 +2,7 @@ package fzf
 
 import (
 	"fmt"
+	"io/ioutil"
 	"os"
 	"regexp"
 	"strconv"
@@ -15,7 +16,7 @@ import (
 
 const usage = `usage: fzf [options]
 
-  Search mode
+  Search
     -x, --extended        Extended-search mode
     -e, --extended-exact  Extended-search mode (exact match)
     -i                    Case-insensitive match (default: smart-case match)
@@ -23,36 +24,39 @@ const usage = `usage: fzf [options]
     -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 the item using index expressions for search
+    --with-nth=N[,..]     Transform item using index expressions within finder
     -d, --delimiter=STR   Field delimiter regex for --nth (default: AWK-style)
-
-  Search result
     +s, --no-sort         Do not sort the result
-        --tac             Reverse the order of the input
+    --tac                 Reverse the order of the input
-        --tiebreak=CRI    Sort criterion when the scores are tied;
+    --tiebreak=CRITERION  Sort criterion 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
+    --ansi                Enable processing of ANSI color codes
-        --no-mouse        Disable mouse
+    --no-mouse            Disable mouse
-        --color=COLSPEC   Base scheme (dark|light|16|bw) and/or custom colors
+    --color=COLSPEC       Base scheme (dark|light|16|bw) and/or custom colors
-        --black           Use black background
+    --black               Use black background
-        --reverse         Reverse orientation
+    --reverse             Reverse orientation
-        --no-hscroll      Disable horizontal scroll
+    --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
-        --inline-info     Display finder info inline with the query
+    --cycle               Enable cyclic scroll
-        --prompt=STR      Input prompt (default: '> ')
+    --no-hscroll          Disable horizontal scroll
-        --toggle-sort=KEY Key to toggle sort
+    --inline-info         Display finder info inline with the query
-        --bind=KEYBINDS   Custom key bindings. Refer to the man page.
+    --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-file=FILE    The file whose content to be printed as header
+    --header-lines=N      The first N lines of the input are treated as header
 
   Scripting
     -q, --query=STR       Start the finder with the given query
     -1, --select-1        Automatically select the only match
     -0, --exit-0          Exit immediately when there's no match
     -f, --filter=STR      Filter mode. Do not start interactive finder.
-        --print-query     Print query as the first line
+    --print-query         Print query as the first line
-        --expect=KEYS     Comma-separated list of keys to complete fzf
+    --expect=KEYS         Comma-separated list of keys to complete fzf
-        --sync            Synchronous search for multi-staged filtering
+    --sync                Synchronous search for multi-staged filtering
 
   Environment variables
     FZF_DEFAULT_COMMAND   Default command to use when input is tty
@@ -90,35 +94,46 @@ const (
 	byIndex
 )
 
+func defaultMargin() [4]string {
+	return [4]string{"0", "0", "0", "0"}
+}
+
 // Options stores the values of command-line options
 type Options struct {
-	Mode       Mode
+	Mode        Mode
-	Case       Case
+	Case        Case
-	Nth        []Range
+	Nth         []Range
-	WithNth    []Range
+	WithNth     []Range
-	Delimiter  *regexp.Regexp
+	Delimiter   *regexp.Regexp
-	Sort       int
+	Sort        int
-	Tac        bool
+	Tac         bool
-	Tiebreak   tiebreak
+	Tiebreak    tiebreak
-	Multi      bool
+	Multi       bool
-	Ansi       bool
+	Ansi        bool
-	Mouse      bool
+	Mouse       bool
-	Theme      *curses.ColorTheme
+	Theme       *curses.ColorTheme
-	Black      bool
+	Black       bool
-	Reverse    bool
+	Reverse     bool
-	Hscroll    bool
+	Cycle       bool
-	InlineInfo bool
+	Hscroll     bool
-	Prompt     string
+	InlineInfo  bool
-	Query      string
+	Prompt      string
-	Select1    bool
+	Query       string
-	Exit0      bool
+	Select1     bool
-	Filter     *string
+	Exit0       bool
-	ToggleSort bool
+	Filter      *string
-	Expect     []int
+	ToggleSort  bool
-	Keymap     map[int]actionType
+	Expect      map[int]string
-	PrintQuery bool
+	Keymap      map[int]actionType
-	Sync       bool
+	Execmap     map[int]string
-	Version    bool
+	PrintQuery  bool
+	ReadZero    bool
+	Sync        bool
+	History     *History
+	Header      []string
+	HeaderLines int
+	Margin      [4]string
+	Version     bool
 }
 
 func defaultTheme() *curses.ColorTheme {
@@ -130,33 +145,40 @@ func defaultTheme() *curses.ColorTheme {
 
 func defaultOptions() *Options {
 	return &Options{
-		Mode:       ModeFuzzy,
+		Mode:        ModeFuzzy,
-		Case:       CaseSmart,
+		Case:        CaseSmart,
-		Nth:        make([]Range, 0),
+		Nth:         make([]Range, 0),
-		WithNth:    make([]Range, 0),
+		WithNth:     make([]Range, 0),
-		Delimiter:  nil,
+		Delimiter:   nil,
-		Sort:       1000,
+		Sort:        1000,
-		Tac:        false,
+		Tac:         false,
-		Tiebreak:   byLength,
+		Tiebreak:    byLength,
-		Multi:      false,
+		Multi:       false,
-		Ansi:       false,
+		Ansi:        false,
-		Mouse:      true,
+		Mouse:       true,
-		Theme:      defaultTheme(),
+		Theme:       defaultTheme(),
-		Black:      false,
+		Black:       false,
-		Reverse:    false,
+		Reverse:     false,
-		Hscroll:    true,
+		Cycle:       false,
-		InlineInfo: false,
+		Hscroll:     true,
-		Prompt:     "> ",
+		InlineInfo:  false,
-		Query:      "",
+		Prompt:      "> ",
-		Select1:    false,
+		Query:       "",
-		Exit0:      false,
+		Select1:     false,
-		Filter:     nil,
+		Exit0:       false,
-		ToggleSort: false,
+		Filter:      nil,
-		Expect:     []int{},
+		ToggleSort:  false,
-		Keymap:     defaultKeymap(),
+		Expect:      make(map[int]string),
-		PrintQuery: false,
+		Keymap:      defaultKeymap(),
-		Sync:       false,
+		Execmap:     make(map[int]string),
-		Version:    false}
+		PrintQuery:  false,
+		ReadZero:    false,
+		Sync:        false,
+		History:     nil,
+		Header:      make([]string, 0),
+		HeaderLines: 0,
+		Margin:      defaultMargin(),
+		Version:     false}
 }
 
 func help(ok int) {
@@ -166,14 +188,14 @@ func help(ok int) {
 
 func errorExit(msg string) {
 	os.Stderr.WriteString(msg + "\n")
-	help(1)
+	os.Exit(1)
 }
 
-func optString(arg string, prefix string) (bool, string) {
+func optString(arg string, prefixes ...string) (bool, string) {
-	rx, _ := regexp.Compile(fmt.Sprintf("^(?:%s)(.*)$", prefix))
+	for _, prefix := range prefixes {
-	matches := rx.FindStringSubmatch(arg)
+		if strings.HasPrefix(arg, prefix) {
-	if len(matches) > 1 {
+			return true, arg[len(prefix):]
-		return true, matches[1]
+		}
 	}
 	return false, ""
 }
@@ -195,6 +217,31 @@ func optionalNextString(args []string, i *int) string {
 	return ""
 }
 
+func atoi(str string) int {
+	num, err := strconv.Atoi(str)
+	if err != nil {
+		errorExit("not a valid integer: " + str)
+	}
+	return num
+}
+
+func atof(str string) float64 {
+	num, err := strconv.ParseFloat(str, 64)
+	if err != nil {
+		errorExit("not a valid number: " + str)
+	}
+	return num
+}
+
+func nextInt(args []string, i *int, message string) int {
+	if len(args) > *i+1 {
+		*i++
+	} else {
+		errorExit(message)
+	}
+	return atoi(args[*i])
+}
+
 func optionalNumeric(args []string, i *int) int {
 	if len(args) > *i+1 {
 		if strings.IndexAny(args[*i+1], "0123456789") == 0 {
@@ -238,7 +285,7 @@ func isAlphabet(char uint8) bool {
 	return char >= 'a' && char <= 'z'
 }
 
-func parseKeyChords(str string, message string) []int {
+func parseKeyChords(str string, message string) map[int]string {
 	if len(str) == 0 {
 		errorExit(message)
 	}
@@ -248,22 +295,65 @@ func parseKeyChords(str string, message string) []int {
 		tokens = append(tokens, ",")
 	}
 
-	var chords []int
+	chords := make(map[int]string)
 	for _, key := range tokens {
 		if len(key) == 0 {
 			continue // ignore
 		}
 		lkey := strings.ToLower(key)
-		if len(key) == 6 && strings.HasPrefix(lkey, "ctrl-") && isAlphabet(lkey[5]) {
+		chord := 0
-			chords = append(chords, curses.CtrlA+int(lkey[5])-'a')
+		switch lkey {
-		} else if len(key) == 5 && strings.HasPrefix(lkey, "alt-") && isAlphabet(lkey[4]) {
+		case "up":
-			chords = append(chords, curses.AltA+int(lkey[4])-'a')
+			chord = curses.Up
-		} else if len(key) == 2 && strings.HasPrefix(lkey, "f") && key[1] >= '1' && key[1] <= '4' {
+		case "down":
-			chords = append(chords, curses.F1+int(key[1])-'1')
+			chord = curses.Down
-		} else if utf8.RuneCountInString(key) == 1 {
+		case "left":
-			chords = append(chords, curses.AltZ+int([]rune(key)[0]))
+			chord = curses.Left
-		} else {
+		case "right":
-			errorExit("unsupported key: " + key)
+			chord = curses.Right
+		case "enter", "return":
+			chord = curses.CtrlM
+		case "space":
+			chord = curses.AltZ + int(' ')
+		case "bspace", "bs":
+			chord = curses.BSpace
+		case "alt-bs", "alt-bspace":
+			chord = curses.AltBS
+		case "tab":
+			chord = curses.Tab
+		case "btab", "shift-tab":
+			chord = curses.BTab
+		case "esc":
+			chord = curses.ESC
+		case "del":
+			chord = curses.Del
+		case "home":
+			chord = curses.Home
+		case "end":
+			chord = curses.End
+		case "pgup", "page-up":
+			chord = curses.PgUp
+		case "pgdn", "page-down":
+			chord = curses.PgDn
+		case "shift-left":
+			chord = curses.SLeft
+		case "shift-right":
+			chord = curses.SRight
+		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' {
+				chord = curses.F1 + int(key[1]) - '1'
+			} else if utf8.RuneCountInString(key) == 1 {
+				chord = curses.AltZ + int([]rune(key)[0])
+			} else {
+				errorExit("unsupported key: " + key)
+			}
+		}
+		if chord > 0 {
+			chords[chord] = key
 		}
 	}
 	return chords
@@ -345,6 +435,8 @@ func parseTheme(defaultTheme *curses.ColorTheme, str string) *curses.ColorTheme
 				theme.Cursor = ansi
 			case "marker":
 				theme.Selected = ansi
+			case "header":
+				theme.Header = ansi
 			default:
 				fail()
 			}
@@ -353,22 +445,57 @@ func parseTheme(defaultTheme *curses.ColorTheme, str string) *curses.ColorTheme
 	return theme
 }
 
-func parseKeymap(keymap map[int]actionType, toggleSort bool, str string) (map[int]actionType, bool) {
+var executeRegexp *regexp.Regexp
-	for _, pairStr := range strings.Split(str, ",") {
+
-		fail := func() {
+func firstKey(keymap map[int]string) int {
-			errorExit("invalid key binding: " + pairStr)
+	for k := range keymap {
+		return k
+	}
+	return 0
+}
+
+const (
+	escapedColon = 0
+	escapedComma = 1
+)
+
+func parseKeymap(keymap map[int]actionType, execmap map[int]string, toggleSort bool, str string) (map[int]actionType, map[int]string, bool) {
+	if executeRegexp == nil {
+		// Backreferences are not supported.
+		// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
+		executeRegexp = regexp.MustCompile(
+			"(?s):execute:.*|:execute(\\([^)]*\\)|\\[[^\\]]*\\]|~[^~]*~|![^!]*!|@[^@]*@|\\#[^\\#]*\\#|\\$[^\\$]*\\$|%[^%]*%|\\^[^\\^]*\\^|&[^&]*&|\\*[^\\*]*\\*|;[^;]*;|/[^/]*/|\\|[^\\|]*\\|)")
+	}
+	masked := executeRegexp.ReplaceAllStringFunc(str, func(src string) string {
+		return ":execute(" + strings.Repeat(" ", len(src)-10) + ")"
+	})
+	masked = strings.Replace(masked, "::", string([]rune{escapedColon, ':'}), -1)
+	masked = strings.Replace(masked, ",:", string([]rune{escapedComma, ':'}), -1)
+
+	idx := 0
+	for _, pairStr := range strings.Split(masked, ",") {
+		origPairStr := str[idx : idx+len(pairStr)]
+		idx += len(pairStr) + 1
+
+		pair := strings.SplitN(pairStr, ":", 2)
+		if len(pair) < 2 {
+			errorExit("bind action not specified: " + origPairStr)
 		}
-		pair := strings.Split(pairStr, ":")
+		var key int
-		if len(pair) != 2 {
+		if len(pair[0]) == 1 && pair[0][0] == escapedColon {
-			fail()
+			key = ':' + curses.AltZ
+		} else if len(pair[0]) == 1 && pair[0][0] == escapedComma {
+			key = ',' + curses.AltZ
+		} else {
+			keys := parseKeyChords(pair[0], "key name required")
+			key = firstKey(keys)
 		}
-		keys := parseKeyChords(pair[0], "key name required")
+
-		if len(keys) != 1 {
+		act := origPairStr[len(pair[0])+1 : len(origPairStr)]
-			fail()
+		actLower := strings.ToLower(act)
-		}
+		switch actLower {
-		key := keys[0]
+		case "ignore":
-		act := strings.ToLower(pair[1])
+			keymap[key] = actIgnore
-		switch act {
 		case "beginning-of-line":
 			keymap[key] = actBeginningOfLine
 		case "abort":
@@ -385,8 +512,12 @@ func parseKeymap(keymap map[int]actionType, toggleSort bool, str string) (map[in
 			keymap[key] = actClearScreen
 		case "delete-char":
 			keymap[key] = actDeleteChar
+		case "delete-char/eof":
+			keymap[key] = actDeleteCharEOF
 		case "end-of-line":
 			keymap[key] = actEndOfLine
+		case "cancel":
+			keymap[key] = actCancel
 		case "forward-char":
 			keymap[key] = actForwardChar
 		case "forward-word":
@@ -407,6 +538,12 @@ func parseKeymap(keymap map[int]actionType, toggleSort bool, str string) (map[in
 			keymap[key] = actToggleDown
 		case "toggle-up":
 			keymap[key] = actToggleUp
+		case "toggle-all":
+			keymap[key] = actToggleAll
+		case "select-all":
+			keymap[key] = actSelectAll
+		case "deselect-all":
+			keymap[key] = actDeselectAll
 		case "toggle":
 			keymap[key] = actToggle
 		case "down":
@@ -417,14 +554,40 @@ func parseKeymap(keymap map[int]actionType, toggleSort bool, str string) (map[in
 			keymap[key] = actPageUp
 		case "page-down":
 			keymap[key] = actPageDown
+		case "previous-history":
+			keymap[key] = actPreviousHistory
+		case "next-history":
+			keymap[key] = actNextHistory
 		case "toggle-sort":
 			keymap[key] = actToggleSort
 			toggleSort = true
 		default:
-			errorExit("unknown action: " + act)
+			if isExecuteAction(actLower) {
+				keymap[key] = actExecute
+				if act[7] == ':' {
+					execmap[key] = act[8:]
+				} else {
+					execmap[key] = act[8 : len(act)-1]
+				}
+			} else {
+				errorExit("unknown action: " + act)
+			}
 		}
 	}
-	return keymap, toggleSort
+	return keymap, execmap, toggleSort
+}
+
+func isExecuteAction(str string) bool {
+	if !strings.HasPrefix(str, "execute") || len(str) < 9 {
+		return false
+	}
+	b := str[7]
+	e := str[len(str)-1]
+	if b == ':' || b == '(' && e == ')' || b == '[' && e == ']' ||
+		b == e && strings.ContainsAny(string(b), "~!@#$%^&*;/|") {
+		return true
+	}
+	return false
 }
 
 func checkToggleSort(keymap map[int]actionType, str string) map[int]actionType {
@@ -432,11 +595,84 @@ func checkToggleSort(keymap map[int]actionType, str string) map[int]actionType {
 	if len(keys) != 1 {
 		errorExit("multiple keys specified")
 	}
-	keymap[keys[0]] = actToggleSort
+	keymap[firstKey(keys)] = actToggleSort
 	return keymap
 }
 
+func readHeaderFile(filename string) []string {
+	content, err := ioutil.ReadFile(filename)
+	if err != nil {
+		errorExit("failed to read header file: " + filename)
+	}
+	return strings.Split(strings.TrimSuffix(string(content), "\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")
+			}
+		}
+		return str
+	}
+	switch len(margins) {
+	case 1:
+		m := checked(margins[0])
+		return [4]string{m, m, m, m}
+	case 2:
+		tb := checked(margins[0])
+		rl := checked(margins[1])
+		return [4]string{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}
+	case 4:
+		return [4]string{
+			checked(margins[0]), checked(margins[1]),
+			checked(margins[2]), checked(margins[3])}
+	default:
+		errorExit("invalid margin: " + margin)
+	}
+	return defaultMargin()
+}
+
 func parseOptions(opts *Options, allArgs []string) {
+	keymap := make(map[int]actionType)
+	var historyMax int
+	if opts.History == nil {
+		historyMax = defaultHistoryMax
+	} else {
+		historyMax = opts.History.maxSize
+	}
+	setHistory := func(path string) {
+		h, e := NewHistory(path, historyMax)
+		if e != nil {
+			errorExit(e.Error())
+		}
+		opts.History = h
+	}
+	setHistoryMax := func(max int) {
+		historyMax = max
+		if historyMax < 1 {
+			errorExit("history max must be a positive integer")
+		}
+		if opts.History != nil {
+			opts.History.maxSize = historyMax
+		}
+	}
 	for i := 0; i < len(allArgs); i++ {
 		arg := allArgs[i]
 		switch arg {
@@ -458,7 +694,8 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--tiebreak":
 			opts.Tiebreak = parseTiebreak(nextString(allArgs, &i, "sort criterion required"))
 		case "--bind":
-			opts.Keymap, opts.ToggleSort = parseKeymap(opts.Keymap, opts.ToggleSort, nextString(allArgs, &i, "bind expression required"))
+			keymap, opts.Execmap, opts.ToggleSort =
+				parseKeymap(keymap, opts.Execmap, opts.ToggleSort, nextString(allArgs, &i, "bind expression required"))
 		case "--color":
 			spec := optionalNextString(allArgs, &i)
 			if len(spec) == 0 {
@@ -467,7 +704,7 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.Theme = parseTheme(opts.Theme, spec)
 			}
 		case "--toggle-sort":
-			opts.Keymap = checkToggleSort(opts.Keymap, nextString(allArgs, &i, "key name required"))
+			keymap = checkToggleSort(keymap, nextString(allArgs, &i, "key name required"))
 			opts.ToggleSort = true
 		case "-d", "--delimiter":
 			opts.Delimiter = delimiterRegexp(nextString(allArgs, &i, "delimiter required"))
@@ -509,6 +746,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Reverse = true
 		case "--no-reverse":
 			opts.Reverse = false
+		case "--cycle":
+			opts.Cycle = true
+		case "--no-cycle":
+			opts.Cycle = false
 		case "--hscroll":
 			opts.Hscroll = true
 		case "--no-hscroll":
@@ -525,6 +766,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Exit0 = true
 		case "+0", "--no-exit-0":
 			opts.Exit0 = false
+		case "--read0":
+			opts.ReadZero = true
+		case "--no-read0":
+			opts.ReadZero = false
 		case "--print-query":
 			opts.PrintQuery = true
 		case "--no-print-query":
@@ -537,25 +782,48 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Sync = false
 		case "--async":
 			opts.Sync = false
+		case "--no-history":
+			opts.History = nil
+		case "--history":
+			setHistory(nextString(allArgs, &i, "history file path required"))
+		case "--history-size":
+			setHistoryMax(nextInt(allArgs, &i, "history max size required"))
+		case "--no-header-file":
+			opts.Header = []string{}
+		case "--no-header-lines":
+			opts.HeaderLines = 0
+		case "--header-file":
+			opts.Header = readHeaderFile(
+				nextString(allArgs, &i, "header file name required"))
+			opts.HeaderLines = 0
+		case "--header-lines":
+			opts.Header = []string{}
+			opts.HeaderLines = atoi(
+				nextString(allArgs, &i, "number of header lines required"))
+		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 "--version":
 			opts.Version = true
 		default:
-			if match, value := optString(arg, "-q|--query="); match {
+			if match, value := optString(arg, "-q", "--query="); match {
 				opts.Query = value
-			} else if match, value := optString(arg, "-f|--filter="); match {
+			} else if match, value := optString(arg, "-f", "--filter="); match {
 				opts.Filter = &value
-			} else if match, value := optString(arg, "-d|--delimiter="); match {
+			} else if match, value := optString(arg, "-d", "--delimiter="); match {
 				opts.Delimiter = delimiterRegexp(value)
 			} else if match, value := optString(arg, "--prompt="); match {
 				opts.Prompt = value
-			} else if match, value := optString(arg, "-n|--nth="); match {
+			} else if match, value := optString(arg, "-n", "--nth="); match {
 				opts.Nth = splitNth(value)
 			} else if match, value := optString(arg, "--with-nth="); match {
 				opts.WithNth = splitNth(value)
-			} else if match, _ := optString(arg, "-s|--sort="); match {
+			} else if match, _ := optString(arg, "-s", "--sort="); match {
 				opts.Sort = 1 // Don't care
 			} else if match, value := optString(arg, "--toggle-sort="); match {
-				opts.Keymap = checkToggleSort(opts.Keymap, value)
+				keymap = checkToggleSort(keymap, value)
 				opts.ToggleSort = true
 			} else if match, value := optString(arg, "--expect="); match {
 				opts.Expect = parseKeyChords(value, "key names required")
@@ -564,13 +832,45 @@ func parseOptions(opts *Options, allArgs []string) {
 			} else if match, value := optString(arg, "--color="); match {
 				opts.Theme = parseTheme(opts.Theme, value)
 			} else if match, value := optString(arg, "--bind="); match {
-				opts.Keymap, opts.ToggleSort = parseKeymap(opts.Keymap, opts.ToggleSort, value)
+				keymap, opts.Execmap, opts.ToggleSort =
+					parseKeymap(keymap, opts.Execmap, opts.ToggleSort, value)
+			} else if match, value := optString(arg, "--history="); match {
+				setHistory(value)
+			} else if match, value := optString(arg, "--history-size="); match {
+				setHistoryMax(atoi(value))
+			} else if match, value := optString(arg, "--header-file="); match {
+				opts.Header = readHeaderFile(value)
+				opts.HeaderLines = 0
+			} else if match, value := optString(arg, "--header-lines="); match {
+				opts.Header = []string{}
+				opts.HeaderLines = atoi(value)
+			} else if match, value := optString(arg, "--margin="); match {
+				opts.Margin = parseMargin(value)
 			} else {
 				errorExit("unknown option: " + arg)
 			}
 		}
 	}
 
+	if opts.HeaderLines < 0 {
+		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 _, prs := keymap[curses.CtrlN]; !prs {
+			keymap[curses.CtrlN] = actNextHistory
+		}
+	}
+
+	// Override default key bindings
+	for key, act := range keymap {
+		opts.Keymap[key] = act
+	}
+
 	// 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 {

src/options_test.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"fmt"
 	"testing"
 
 	"github.com/junegunn/fzf/src/curses"
@@ -71,63 +72,101 @@ func TestIrrelevantNth(t *testing.T) {
 }
 
 func TestParseKeys(t *testing.T) {
-	keys := 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", "")
-	check := func(key int, expected int) {
+	check := func(i int, s string) {
-		if key != expected {
+		if pairs[i] != s {
-			t.Errorf("%d != %d", key, expected)
+			t.Errorf("%s != %s", pairs[i], s)
 		}
 	}
-	check(len(keys), 9)
+	if len(pairs) != 9 {
-	check(keys[0], curses.CtrlZ)
+		t.Error(9)
-	check(keys[1], curses.AltZ)
+	}
-	check(keys[2], curses.F2)
+	check(curses.CtrlZ, "ctrl-z")
-	check(keys[3], curses.AltZ+'@')
+	check(curses.AltZ, "alt-z")
-	check(keys[4], curses.AltA)
+	check(curses.F2, "f2")
-	check(keys[5], curses.AltZ+'!')
+	check(curses.AltZ+'@', "@")
-	check(keys[6], curses.CtrlA+'g'-'a')
+	check(curses.AltA, "Alt-a")
-	check(keys[7], curses.AltZ+'J')
+	check(curses.AltZ+'!', "!")
-	check(keys[8], curses.AltZ+'g')
+	check(curses.CtrlA+'g'-'a', "ctrl-G")
+	check(curses.AltZ+'J', "J")
+	check(curses.AltZ+'g', "g")
+
+	// Synonyms
+	pairs = parseKeyChords("enter,Return,space,tab,btab,esc,up,down,left,right", "")
+	if len(pairs) != 9 {
+		t.Error(9)
+	}
+	check(curses.CtrlM, "Return")
+	check(curses.AltZ+' ', "space")
+	check(curses.Tab, "tab")
+	check(curses.BTab, "btab")
+	check(curses.ESC, "esc")
+	check(curses.Up, "up")
+	check(curses.Down, "down")
+	check(curses.Left, "left")
+	check(curses.Right, "right")
+
+	pairs = parseKeyChords("Tab,Ctrl-I,PgUp,page-up,pgdn,Page-Down,Home,End,Alt-BS,Alt-BSpace,shift-left,shift-right,btab,shift-tab,return,Enter,bspace", "")
+	if len(pairs) != 11 {
+		t.Error(11)
+	}
+	check(curses.Tab, "Ctrl-I")
+	check(curses.PgUp, "page-up")
+	check(curses.PgDn, "Page-Down")
+	check(curses.Home, "Home")
+	check(curses.End, "End")
+	check(curses.AltBS, "Alt-BSpace")
+	check(curses.SLeft, "shift-left")
+	check(curses.SRight, "shift-right")
+	check(curses.BTab, "shift-tab")
+	check(curses.CtrlM, "Enter")
+	check(curses.BSpace, "bspace")
 }
 
 func TestParseKeysWithComma(t *testing.T) {
-	check := func(key int, expected int) {
+	checkN := func(a int, b int) {
-		if key != expected {
+		if a != b {
-			t.Errorf("%d != %d", key, expected)
+			t.Errorf("%d != %d", a, b)
+		}
+	}
+	check := func(pairs map[int]string, i int, s string) {
+		if pairs[i] != s {
+			t.Errorf("%s != %s", pairs[i], s)
 		}
 	}
 
-	keys := parseKeyChords(",", "")
+	pairs := parseKeyChords(",", "")
-	check(len(keys), 1)
+	checkN(len(pairs), 1)
-	check(keys[0], curses.AltZ+',')
+	check(pairs, curses.AltZ+',', ",")
 
-	keys = parseKeyChords(",,a,b", "")
+	pairs = parseKeyChords(",,a,b", "")
-	check(len(keys), 3)
+	checkN(len(pairs), 3)
-	check(keys[0], curses.AltZ+'a')
+	check(pairs, curses.AltZ+'a', "a")
-	check(keys[1], curses.AltZ+'b')
+	check(pairs, curses.AltZ+'b', "b")
-	check(keys[2], curses.AltZ+',')
+	check(pairs, curses.AltZ+',', ",")
 
-	keys = parseKeyChords("a,b,,", "")
+	pairs = parseKeyChords("a,b,,", "")
-	check(len(keys), 3)
+	checkN(len(pairs), 3)
-	check(keys[0], curses.AltZ+'a')
+	check(pairs, curses.AltZ+'a', "a")
-	check(keys[1], curses.AltZ+'b')
+	check(pairs, curses.AltZ+'b', "b")
-	check(keys[2], curses.AltZ+',')
+	check(pairs, curses.AltZ+',', ",")
 
-	keys = parseKeyChords("a,,,b", "")
+	pairs = parseKeyChords("a,,,b", "")
-	check(len(keys), 3)
+	checkN(len(pairs), 3)
-	check(keys[0], curses.AltZ+'a')
+	check(pairs, curses.AltZ+'a', "a")
-	check(keys[1], curses.AltZ+'b')
+	check(pairs, curses.AltZ+'b', "b")
-	check(keys[2], curses.AltZ+',')
+	check(pairs, curses.AltZ+',', ",")
 
-	keys = parseKeyChords("a,,,b,c", "")
+	pairs = parseKeyChords("a,,,b,c", "")
-	check(len(keys), 4)
+	checkN(len(pairs), 4)
-	check(keys[0], curses.AltZ+'a')
+	check(pairs, curses.AltZ+'a', "a")
-	check(keys[1], curses.AltZ+'b')
+	check(pairs, curses.AltZ+'b', "b")
-	check(keys[2], curses.AltZ+'c')
+	check(pairs, curses.AltZ+'c', "c")
-	check(keys[3], curses.AltZ+',')
+	check(pairs, curses.AltZ+',', ",")
 
-	keys = parseKeyChords(",,,", "")
+	pairs = parseKeyChords(",,,", "")
-	check(len(keys), 1)
+	checkN(len(pairs), 1)
-	check(keys[0], curses.AltZ+',')
+	check(pairs, curses.AltZ+',', ",")
 }
 
 func TestBind(t *testing.T) {
@@ -136,20 +175,48 @@ func TestBind(t *testing.T) {
 			t.Errorf("%d != %d", action, expected)
 		}
 	}
+	checkString := func(action string, expected string) {
+		if action != expected {
+			t.Errorf("%d != %d", action, expected)
+		}
+	}
 	keymap := defaultKeymap()
+	execmap := make(map[int]string)
 	check(actBeginningOfLine, keymap[curses.CtrlA])
-	keymap, toggleSort :=
+	keymap, execmap, toggleSort :=
-		parseKeymap(keymap, false,
+		parseKeymap(keymap, execmap, false,
-			"ctrl-a:kill-line,ctrl-b:toggle-sort,c:page-up,alt-z:page-down")
+			"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")
 	}
 	check(actKillLine, keymap[curses.CtrlA])
 	check(actToggleSort, keymap[curses.CtrlB])
 	check(actPageUp, keymap[curses.AltZ+'c'])
+	check(actAbort, keymap[curses.AltZ+','])
+	check(actAccept, keymap[curses.AltZ+':'])
 	check(actPageDown, keymap[curses.AltZ])
+	check(actExecute, keymap[curses.F1])
+	check(actExecute, keymap[curses.F2])
+	check(actExecute, keymap[curses.F3])
+	check(actExecute, keymap[curses.F4])
+	checkString("ls {}", execmap[curses.F1])
+	checkString("echo {}, {}, {}", execmap[curses.F2])
+	checkString("echo '({})'", execmap[curses.F3])
+	checkString("less {}", execmap[curses.F4])
+	checkString("echo (,),[,],/,:,;,%,{}", execmap[curses.AltA])
+	checkString("echo (,),[,],/,:,@,%,{}", execmap[curses.AltB])
+	checkString("\nfoobar,Y:execute(baz)", execmap[curses.AltZ+'X'])
 
-	keymap, toggleSort = parseKeymap(keymap, false, "f1:abort")
+	for idx, char := range []rune{'~', '!', '@', '#', '$', '%', '^', '&', '*', '|', ';', '/'} {
+		keymap, execmap, toggleSort =
+			parseKeymap(keymap, execmap, false, 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")
 	}

src/pattern.go

@@ -24,6 +24,7 @@ const (
 	termExact
 	termPrefix
 	termSuffix
+	termEqual
 )
 
 type term struct {
@@ -43,7 +44,7 @@ type Pattern struct {
 	hasInvTerm    bool
 	delimiter     *regexp.Regexp
 	nth           []Range
-	procFun       map[termType]func(bool, *[]rune, []rune) (int, int)
+	procFun       map[termType]func(bool, []rune, []rune) (int, int)
 }
 
 var (
@@ -113,9 +114,10 @@ func BuildPattern(mode Mode, caseMode Case,
 		hasInvTerm:    hasInvTerm,
 		nth:           nth,
 		delimiter:     delimiter,
-		procFun:       make(map[termType]func(bool, *[]rune, []rune) (int, int))}
+		procFun:       make(map[termType]func(bool, []rune, []rune) (int, int))}
 
 	ptr.procFun[termFuzzy] = algo.FuzzyMatch
+	ptr.procFun[termEqual] = algo.EqualMatch
 	ptr.procFun[termExact] = algo.ExactMatchNaive
 	ptr.procFun[termPrefix] = algo.PrefixMatch
 	ptr.procFun[termSuffix] = algo.SuffixMatch
@@ -151,8 +153,13 @@ func parseTerms(mode Mode, caseMode Case, str string) []term {
 				text = text[1:]
 			}
 		} else if strings.HasPrefix(text, "^") {
-			typ = termPrefix
+			if strings.HasSuffix(text, "$") {
-			text = text[1:]
+				typ = termEqual
+				text = text[1 : len(text)-1]
+			} else {
+				typ = termPrefix
+				text = text[1:]
+			}
 		} else if strings.HasSuffix(text, "$") {
 			typ = termSuffix
 			text = text[:len(text)-1]
@@ -298,27 +305,25 @@ func (p *Pattern) extendedMatch(item *Item) []Offset {
 	return offsets
 }
 
-func (p *Pattern) prepareInput(item *Item) *[]Token {
+func (p *Pattern) prepareInput(item *Item) []Token {
 	if item.transformed != nil {
 		return item.transformed
 	}
 
-	var ret *[]Token
+	var ret []Token
 	if len(p.nth) > 0 {
 		tokens := Tokenize(item.text, p.delimiter)
 		ret = Transform(tokens, p.nth)
 	} else {
-		runes := []rune(*item.text)
+		ret = []Token{Token{text: item.text, prefixLength: 0}}
-		trans := []Token{Token{text: &runes, prefixLength: 0}}
-		ret = &trans
 	}
 	item.transformed = ret
 	return ret
 }
 
-func (p *Pattern) iter(pfun func(bool, *[]rune, []rune) (int, int),
+func (p *Pattern) iter(pfun func(bool, []rune, []rune) (int, int),
-	tokens *[]Token, caseSensitive bool, pattern []rune) (int, int) {
+	tokens []Token, caseSensitive bool, pattern []rune) (int, int) {
-	for _, part := range *tokens {
+	for _, part := range tokens {
 		prefixLength := part.prefixLength
 		if sidx, eidx := pfun(caseSensitive, part.text, pattern); sidx >= 0 {
 			return sidx + prefixLength, eidx + prefixLength

src/pattern_test.go

@@ -1,6 +1,7 @@
 package fzf
 
 import (
+	"reflect"
 	"testing"
 
 	"github.com/junegunn/fzf/src/algo"
@@ -8,8 +9,8 @@ import (
 
 func TestParseTermsExtended(t *testing.T) {
 	terms := parseTerms(ModeExtended, CaseSmart,
-		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$")
+		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$ ^iii$")
-	if len(terms) != 8 ||
+	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 ||
@@ -17,7 +18,8 @@ func TestParseTermsExtended(t *testing.T) {
 		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[7].typ != termSuffix || !terms[7].inv ||
+		terms[8].typ != termEqual || terms[8].inv {
 		t.Errorf("%s", terms)
 	}
 	for idx, term := range terms {
@@ -58,13 +60,29 @@ func TestExact(t *testing.T) {
 	clearPatternCache()
 	pattern := BuildPattern(ModeExtended, CaseSmart,
 		[]Range{}, nil, []rune("'abc"))
-	runes := []rune("aabbcc abc")
+	sidx, eidx := algo.ExactMatchNaive(
-	sidx, eidx := algo.ExactMatchNaive(pattern.caseSensitive, &runes, pattern.terms[0].text)
+		pattern.caseSensitive, []rune("aabbcc abc"), pattern.terms[0].text)
 	if sidx != 7 || eidx != 10 {
 		t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
 	}
 }
 
+func TestEqual(t *testing.T) {
+	defer clearPatternCache()
+	clearPatternCache()
+	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, nil, []rune("^AbC$"))
+
+	match := func(str string, sidxExpected int, eidxExpected int) {
+		sidx, eidx := algo.EqualMatch(
+			pattern.caseSensitive, []rune(str), pattern.terms[0].text)
+		if sidx != sidxExpected || eidx != eidxExpected {
+			t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
+		}
+	}
+	match("ABC", -1, -1)
+	match("AbC", 0, 3)
+}
+
 func TestCaseSensitivity(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
@@ -91,25 +109,23 @@ func TestCaseSensitivity(t *testing.T) {
 }
 
 func TestOrigTextAndTransformed(t *testing.T) {
-	strptr := func(str string) *string {
-		return &str
-	}
 	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, nil, []rune("jg"))
-	tokens := Tokenize(strptr("junegunn"), nil)
+	tokens := Tokenize([]rune("junegunn"), nil)
 	trans := Transform(tokens, []Range{Range{1, 1}})
 
+	origRunes := []rune("junegunn.choi")
 	for _, mode := range []Mode{ModeFuzzy, ModeExtended} {
 		chunk := Chunk{
 			&Item{
-				text:        strptr("junegunn"),
+				text:        []rune("junegunn"),
-				origText:    strptr("junegunn.choi"),
+				origText:    &origRunes,
 				transformed: trans},
 		}
 		pattern.mode = mode
 		matches := pattern.matchChunk(&chunk)
-		if *matches[0].text != "junegunn" || *matches[0].origText != "junegunn.choi" ||
+		if string(matches[0].text) != "junegunn" || string(*matches[0].origText) != "junegunn.choi" ||
 			matches[0].offsets[0][0] != 0 || matches[0].offsets[0][1] != 5 ||
-			matches[0].transformed != trans {
+			!reflect.DeepEqual(matches[0].transformed, trans) {
 			t.Error("Invalid match result", matches)
 		}
 	}

src/reader.go

@@ -11,8 +11,9 @@ import (
 
 // Reader reads from command or standard input
 type Reader struct {
-	pusher   func(string)
+	pusher   func([]byte) bool
 	eventBox *util.EventBox
+	delimNil bool
 }
 
 // ReadSource reads data from the default command or from standard input
@@ -30,30 +31,25 @@ func (r *Reader) ReadSource() {
 }
 
 func (r *Reader) feed(src io.Reader) {
+	delim := byte('\n')
+	if r.delimNil {
+		delim = '\000'
+	}
 	reader := bufio.NewReader(src)
-	eof := false
+	for {
-Loop:
+		// ReadBytes returns err != nil if and only if the returned data does not
-	for !eof {
+		// end in delim.
-		buf := []byte{}
+		bytea, err := reader.ReadBytes(delim)
-		iter := 0 // TODO: max size?
+		if len(bytea) > 0 {
-		for {
+			if err == nil {
-			// "ReadLine either returns a non-nil line or it returns an error, never both"
+				bytea = bytea[:len(bytea)-1]
-			line, isPrefix, err := reader.ReadLine()
-			eof = err == io.EOF
-			if eof {
-				break
-			} else if err != nil {
-				break Loop
 			}
-			iter++
+			if r.pusher(bytea) {
-			buf = append(buf, line...)
+				r.eventBox.Set(EvtReadNew, nil)
-			if !isPrefix {
-				break
 			}
 		}
-		if iter > 0 {
+		if err != nil {
-			r.pusher(string(buf))
+			break
-			r.eventBox.Set(EvtReadNew, nil)
 		}
 	}
 }

src/reader_test.go

@@ -10,7 +10,7 @@ func TestReadFromCommand(t *testing.T) {
 	strs := []string{}
 	eb := util.NewEventBox()
 	reader := Reader{
-		pusher:   func(s string) { strs = append(strs, s) },
+		pusher:   func(s []byte) bool { strs = append(strs, string(s)); return true },
 		eventBox: eb}
 
 	// Check EventBox

src/terminal.go

@@ -4,9 +4,11 @@ import (
 	"bytes"
 	"fmt"
 	"os"
+	"os/exec"
 	"os/signal"
 	"regexp"
 	"sort"
+	"strconv"
 	"strings"
 	"sync"
 	"syscall"
@@ -32,10 +34,16 @@ type Terminal struct {
 	multi      bool
 	sort       bool
 	toggleSort bool
-	expect     []int
+	expect     map[int]string
 	keymap     map[int]actionType
-	pressed    int
+	execmap    map[int]string
+	pressed    string
 	printQuery bool
+	history    *History
+	cycle      bool
+	header     []string
+	margin     [4]string
+	marginInt  [4]int
 	count      int
 	progress   int
 	reading    bool
@@ -74,6 +82,7 @@ var _runeWidths = make(map[rune]int)
 const (
 	reqPrompt util.EventType = iota
 	reqInfo
+	reqHeader
 	reqList
 	reqRefresh
 	reqRedraw
@@ -94,8 +103,10 @@ const (
 	actBackwardChar
 	actBackwardDeleteChar
 	actBackwardWord
+	actCancel
 	actClearScreen
 	actDeleteChar
+	actDeleteCharEOF
 	actEndOfLine
 	actForwardChar
 	actForwardWord
@@ -105,7 +116,10 @@ const (
 	actUnixWordRubout
 	actYank
 	actBackwardKillWord
+	actSelectAll
+	actDeselectAll
 	actToggle
+	actToggleAll
 	actToggleDown
 	actToggleUp
 	actDown
@@ -113,6 +127,9 @@ const (
 	actPageUp
 	actPageDown
 	actToggleSort
+	actPreviousHistory
+	actNextHistory
+	actExecute
 )
 
 func defaultKeymap() map[int]actionType {
@@ -124,10 +141,11 @@ func defaultKeymap() map[int]actionType {
 	keymap[C.CtrlG] = actAbort
 	keymap[C.CtrlQ] = actAbort
 	keymap[C.ESC] = actAbort
-	keymap[C.CtrlD] = actDeleteChar
+	keymap[C.CtrlD] = actDeleteCharEOF
 	keymap[C.CtrlE] = actEndOfLine
 	keymap[C.CtrlF] = actForwardChar
 	keymap[C.CtrlH] = actBackwardDeleteChar
+	keymap[C.BSpace] = actBackwardDeleteChar
 	keymap[C.Tab] = actToggleDown
 	keymap[C.BTab] = actToggleUp
 	keymap[C.CtrlJ] = actDown
@@ -154,7 +172,7 @@ func defaultKeymap() map[int]actionType {
 
 	keymap[C.Home] = actBeginningOfLine
 	keymap[C.End] = actEndOfLine
-	keymap[C.Del] = actDeleteChar // FIXME Del vs. CTRL-D
+	keymap[C.Del] = actDeleteChar
 	keymap[C.PgUp] = actPageUp
 	keymap[C.PgDn] = actPageDown
 
@@ -181,8 +199,15 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		toggleSort: opts.ToggleSort,
 		expect:     opts.Expect,
 		keymap:     opts.Keymap,
-		pressed:    0,
+		execmap:    opts.Execmap,
+		pressed:    "",
 		printQuery: opts.PrintQuery,
+		history:    opts.History,
+		margin:     opts.Margin,
+		marginInt:  [4]int{0, 0, 0, 0},
+		cycle:      opts.Cycle,
+		header:     opts.Header,
+		reading:    true,
 		merger:     EmptyMerger,
 		selected:   make(map[uint32]selectedItem),
 		reqBox:     util.NewEventBox(),
@@ -214,6 +239,22 @@ func (t *Terminal) UpdateCount(cnt int, final bool) {
 	}
 }
 
+// UpdateHeader updates the header
+func (t *Terminal) UpdateHeader(header []string, lines int) {
+	t.mutex.Lock()
+	t.header = make([]string, lines)
+	copy(t.header, header)
+	if !t.reverse {
+		reversed := make([]string, lines)
+		for idx, str := range t.header {
+			reversed[lines-idx-1] = str
+		}
+		t.header = reversed
+	}
+	t.mutex.Unlock()
+	t.reqBox.Set(reqHeader, nil)
+}
+
 // UpdateProgress updates the search progress
 func (t *Terminal) UpdateProgress(progress float32) {
 	t.mutex.Lock()
@@ -242,17 +283,7 @@ func (t *Terminal) output() {
 		fmt.Println(string(t.input))
 	}
 	if len(t.expect) > 0 {
-		if t.pressed == 0 {
+		fmt.Println(t.pressed)
-			fmt.Println()
-		} else if util.Between(t.pressed, C.AltA, C.AltZ) {
-			fmt.Printf("alt-%c\n", t.pressed+'a'-C.AltA)
-		} else if util.Between(t.pressed, C.F1, C.F4) {
-			fmt.Printf("f%c\n", t.pressed+'1'-C.F1)
-		} else if util.Between(t.pressed, C.CtrlA, C.CtrlZ) {
-			fmt.Printf("ctrl-%c\n", t.pressed+'a'-C.CtrlA)
-		} else {
-			fmt.Printf("%c\n", t.pressed-C.AltZ)
-		}
 	}
 	if len(t.selected) == 0 {
 		cnt := t.merger.Length()
@@ -291,10 +322,50 @@ func displayWidth(runes []rune) int {
 	return l
 }
 
+const minWidth = 16
+const minHeight = 4
+
+func (t *Terminal) calculateMargins() {
+	screenWidth := C.MaxX()
+	screenHeight := C.MaxY()
+	for idx, str := range t.margin {
+		if str == "0" {
+			t.marginInt[idx] = 0
+		} else if strings.HasSuffix(str, "%") {
+			num, _ := strconv.ParseFloat(str[:len(str)-1], 64)
+			var val float64
+			if idx%2 == 0 {
+				val = float64(screenHeight)
+			} else {
+				val = float64(screenWidth)
+			}
+			t.marginInt[idx] = int(val * num * 0.01)
+		} else {
+			num, _ := strconv.Atoi(str)
+			t.marginInt[idx] = num
+		}
+	}
+	adjust := func(idx1 int, idx2 int, max int, min int) {
+		if max >= min {
+			margin := t.marginInt[idx1] + t.marginInt[idx2]
+			if max-margin < min {
+				desired := max - min
+				t.marginInt[idx1] = desired * t.marginInt[idx1] / margin
+				t.marginInt[idx2] = desired * t.marginInt[idx2] / margin
+			}
+		}
+	}
+	adjust(1, 3, screenWidth, minWidth)
+	adjust(0, 2, screenHeight, minHeight)
+}
+
 func (t *Terminal) move(y int, x int, clear bool) {
+	x += t.marginInt[3]
 	maxy := C.MaxY()
 	if !t.reverse {
-		y = maxy - y - 1
+		y = maxy - y - 1 - t.marginInt[2]
+	} else {
+		y += t.marginInt[0]
 	}
 
 	if clear {
@@ -349,17 +420,49 @@ func (t *Terminal) printInfo() {
 	C.CPrint(C.ColInfo, false, output)
 }
 
+func (t *Terminal) maxHeight() int {
+	return C.MaxY() - t.marginInt[0] - t.marginInt[2]
+}
+
+func (t *Terminal) printHeader() {
+	if len(t.header) == 0 {
+		return
+	}
+	max := t.maxHeight()
+	var state *ansiState
+	for idx, lineStr := range t.header {
+		if !t.reverse {
+			idx = len(t.header) - idx - 1
+		}
+		line := idx + 2
+		if t.inlineInfo {
+			line--
+		}
+		if line >= max {
+			continue
+		}
+		trimmed, colors, newState := extractColor(lineStr, state)
+		state = newState
+		item := &Item{
+			text:   []rune(trimmed),
+			index:  0,
+			colors: colors,
+			rank:   Rank{0, 0, 0}}
+
+		t.move(line, 2, true)
+		t.printHighlighted(item, false, C.ColHeader, 0, false)
+	}
+}
+
 func (t *Terminal) printList() {
 	t.constrain()
 
 	maxy := t.maxItems()
 	count := t.merger.Length() - t.offset
 	for i := 0; i < maxy; i++ {
-		var line int
+		line := i + 2 + len(t.header)
 		if t.inlineInfo {
-			line = i + 1
+			line--
-		} else {
-			line = i + 2
 		}
 		t.move(line, 0, true)
 		if i < count {
@@ -373,7 +476,7 @@ func (t *Terminal) printItem(item *Item, current bool) {
 	if current {
 		C.CPrint(C.ColCursor, true, ">")
 		if selected {
-			C.CPrint(C.ColCurrent, true, ">")
+			C.CPrint(C.ColSelected, true, ">")
 		} else {
 			C.CPrint(C.ColCurrent, true, " ")
 		}
@@ -434,9 +537,10 @@ func (t *Terminal) printHighlighted(item *Item, bold bool, col1 int, col2 int, c
 	}
 
 	// Overflow
-	text := []rune(*item.text)
+	text := make([]rune, len(item.text))
+	copy(text, item.text)
 	offsets := item.colorOffsets(col2, bold, current)
-	maxWidth := C.MaxX() - 3
+	maxWidth := C.MaxX() - 3 - t.marginInt[1] - t.marginInt[3]
 	fullWidth := displayWidth(text)
 	if fullWidth > maxWidth {
 		if t.hscroll {
@@ -519,9 +623,11 @@ func processTabs(runes []rune, prefixWidth int) (string, int) {
 }
 
 func (t *Terminal) printAll() {
+	t.calculateMargins()
 	t.printList()
 	t.printPrompt()
 	t.printInfo()
+	t.printHeader()
 }
 
 func (t *Terminal) refresh() {
@@ -580,16 +686,29 @@ func keyMatch(key int, event C.Event) bool {
 	return event.Type == key || event.Type == C.Rune && int(event.Char) == key-C.AltZ
 }
 
+func executeCommand(template string, current string) {
+	command := strings.Replace(template, "{}", fmt.Sprintf("%q", current), -1)
+	cmd := exec.Command("sh", "-c", command)
+	cmd.Stdin = os.Stdin
+	cmd.Stdout = os.Stdout
+	cmd.Stderr = os.Stderr
+	C.Endwin()
+	cmd.Run()
+	C.Refresh()
+}
+
 // Loop is called to start Terminal I/O
 func (t *Terminal) Loop() {
 	<-t.startChan
 	{ // Late initialization
 		t.mutex.Lock()
 		t.initFunc()
+		t.calculateMargins()
 		t.printPrompt()
 		t.placeCursor()
 		C.Refresh()
 		t.printInfo()
+		t.printHeader()
 		t.mutex.Unlock()
 		go func() {
 			timer := time.NewTimer(initialDelay)
@@ -605,6 +724,27 @@ func (t *Terminal) Loop() {
 				t.reqBox.Set(reqRedraw, nil)
 			}
 		}()
+
+		// Keep the spinner spinning
+		go func() {
+			for {
+				t.mutex.Lock()
+				reading := t.reading
+				t.mutex.Unlock()
+				if !reading {
+					break
+				}
+				time.Sleep(spinnerDuration)
+				t.reqBox.Set(reqInfo, nil)
+			}
+		}()
+	}
+
+	exit := func(code int) {
+		if code == 0 && t.history != nil {
+			t.history.append(string(t.input))
+		}
+		os.Exit(code)
 	}
 
 	go func() {
@@ -623,6 +763,8 @@ func (t *Terminal) Loop() {
 						t.printInfo()
 					case reqList:
 						t.printList()
+					case reqHeader:
+						t.printHeader()
 					case reqRefresh:
 						t.suppress = false
 					case reqRedraw:
@@ -633,10 +775,10 @@ func (t *Terminal) Loop() {
 					case reqClose:
 						C.Close()
 						t.output()
-						os.Exit(0)
+						exit(0)
 					case reqQuit:
 						C.Close()
-						os.Exit(1)
+						exit(1)
 					}
 				}
 				t.placeCursor()
@@ -661,39 +803,48 @@ func (t *Terminal) Loop() {
 				}
 			}
 		}
+		selectItem := func(item *Item) bool {
+			if _, found := t.selected[item.index]; !found {
+				t.selected[item.index] = selectedItem{time.Now(), item.StringPtr()}
+				return true
+			}
+			return false
+		}
+		toggleY := func(y int) {
+			item := t.merger.Get(y)
+			if !selectItem(item) {
+				delete(t.selected, item.index)
+			}
+		}
 		toggle := func() {
 			if t.cy < t.merger.Length() {
-				item := t.merger.Get(t.cy)
+				toggleY(t.cy)
-				if _, found := t.selected[item.index]; !found {
-					var strptr *string
-					if item.origText != nil {
-						strptr = item.origText
-					} else {
-						strptr = item.text
-					}
-					t.selected[item.index] = selectedItem{time.Now(), strptr}
-				} else {
-					delete(t.selected, item.index)
-				}
 				req(reqInfo)
 			}
 		}
-		for _, key := range t.expect {
+		for key, ret := range t.expect {
 			if keyMatch(key, event) {
-				t.pressed = key
+				t.pressed = ret
 				req(reqClose)
 				break
 			}
 		}
 
 		action := t.keymap[event.Type]
+		mapkey := event.Type
 		if event.Type == C.Rune {
-			code := int(event.Char) + int(C.AltZ)
+			mapkey = int(event.Char) + int(C.AltZ)
-			if act, prs := t.keymap[code]; prs {
+			if act, prs := t.keymap[mapkey]; prs {
 				action = act
 			}
 		}
 		switch action {
+		case actIgnore:
+		case actExecute:
+			if t.cy >= 0 && t.cy < t.merger.Length() {
+				item := t.merger.Get(t.cy)
+				executeCommand(t.execmap[mapkey], item.AsString())
+			}
 		case actInvalid:
 			t.mutex.Unlock()
 			continue
@@ -711,11 +862,21 @@ func (t *Terminal) Loop() {
 		case actAbort:
 			req(reqQuit)
 		case actDeleteChar:
+			t.delChar()
+		case actDeleteCharEOF:
 			if !t.delChar() && t.cx == 0 {
 				req(reqQuit)
 			}
 		case actEndOfLine:
 			t.cx = len(t.input)
+		case actCancel:
+			if len(t.input) == 0 {
+				req(reqQuit)
+			} else {
+				t.yanked = t.input
+				t.input = []rune{}
+				t.cx = 0
+			}
 		case actForwardChar:
 			if t.cx < len(t.input) {
 				t.cx++
@@ -725,11 +886,34 @@ func (t *Terminal) Loop() {
 				t.input = append(t.input[:t.cx-1], t.input[t.cx:]...)
 				t.cx--
 			}
+		case actSelectAll:
+			if t.multi {
+				for i := 0; i < t.merger.Length(); i++ {
+					item := t.merger.Get(i)
+					selectItem(item)
+				}
+				req(reqList, reqInfo)
+			}
+		case actDeselectAll:
+			if t.multi {
+				for i := 0; i < t.merger.Length(); i++ {
+					item := t.merger.Get(i)
+					delete(t.selected, item.index)
+				}
+				req(reqList, reqInfo)
+			}
 		case actToggle:
 			if t.multi && t.merger.Length() > 0 {
 				toggle()
 				req(reqList)
 			}
+		case actToggleAll:
+			if t.multi {
+				for i := 0; i < t.merger.Length(); i++ {
+					toggleY(i)
+				}
+				req(reqList, reqInfo)
+			}
 		case actToggleDown:
 			if t.multi && t.merger.Length() > 0 {
 				toggle()
@@ -796,16 +980,21 @@ func (t *Terminal) Loop() {
 			prefix := copySlice(t.input[:t.cx])
 			t.input = append(append(prefix, event.Char), t.input[t.cx:]...)
 			t.cx++
+		case actPreviousHistory:
+			if t.history != nil {
+				t.history.override(string(t.input))
+				t.input = []rune(t.history.previous())
+				t.cx = len(t.input)
+			}
+		case actNextHistory:
+			if t.history != nil {
+				t.history.override(string(t.input))
+				t.input = []rune(t.history.next())
+				t.cx = len(t.input)
+			}
 		case actMouse:
 			me := event.MouseEvent
-			mx, my := util.Constrain(me.X-len(t.prompt), 0, len(t.input)), me.Y
+			mx, my := me.X, me.Y
-			if !t.reverse {
-				my = C.MaxY() - my - 1
-			}
-			min := 2
-			if t.inlineInfo {
-				min = 1
-			}
 			if me.S != 0 {
 				// Scroll
 				if t.merger.Length() > 0 {
@@ -815,23 +1004,36 @@ func (t *Terminal) Loop() {
 					t.vmove(me.S)
 					req(reqList)
 				}
-			} else if me.Double {
+			} else if mx >= t.marginInt[3] && mx < C.MaxX()-t.marginInt[1] &&
-				// Double-click
+				my >= t.marginInt[0] && my < C.MaxY()-t.marginInt[2] {
-				if my >= min {
+				mx -= t.marginInt[3]
-					if t.vset(t.offset+my-min) && t.cy < t.merger.Length() {
+				my -= t.marginInt[0]
-						req(reqClose)
+				mx = util.Constrain(mx-len(t.prompt), 0, len(t.input))
-					}
+				if !t.reverse {
+					my = t.maxHeight() - my - 1
 				}
-			} else if me.Down {
+				min := 2 + len(t.header)
-				if my == 0 && mx >= 0 {
+				if t.inlineInfo {
-					// Prompt
+					min--
-					t.cx = mx
+				}
-				} else if my >= min {
+				if me.Double {
-					// List
+					// Double-click
-					if t.vset(t.offset+my-min) && t.multi && me.Mod {
+					if my >= min {
-						toggle()
+						if t.vset(t.offset+my-min) && t.cy < t.merger.Length() {
+							req(reqClose)
+						}
+					}
+				} else if me.Down {
+					if my == 0 && mx >= 0 {
+						// Prompt
+						t.cx = mx
+					} else if my >= min {
+						// List
+						if t.vset(t.offset+my-min) && t.multi && me.Mod {
+							toggle()
+						}
+						req(reqList)
 					}
-					req(reqList)
 				}
 			}
 		}
@@ -867,14 +1069,27 @@ func (t *Terminal) constrain() {
 		t.offset = util.Max(0, count-height)
 		t.cy = util.Constrain(t.offset+diffpos, 0, count-1)
 	}
+	t.offset = util.Max(0, t.offset)
 }
 
 func (t *Terminal) vmove(o int) {
 	if t.reverse {
-		t.vset(t.cy - o)
+		o *= -1
-	} else {
-		t.vset(t.cy + o)
 	}
+	dest := t.cy + o
+	if t.cycle {
+		max := t.merger.Length() - 1
+		if dest > max {
+			if t.cy == max {
+				dest = 0
+			}
+		} else if dest < 0 {
+			if t.cy == 0 {
+				dest = max
+			}
+		}
+	}
+	t.vset(dest)
 }
 
 func (t *Terminal) vset(o int) bool {
@@ -883,9 +1098,9 @@ func (t *Terminal) vset(o int) bool {
 }
 
 func (t *Terminal) maxItems() int {
+	max := t.maxHeight() - 2 - len(t.header)
 	if t.inlineInfo {
-		return C.MaxY() - 1
+		max++
-	} else {
-		return C.MaxY() - 2
 	}
+	return util.Max(max, 0)
 }

src/tokenizer.go

@@ -18,7 +18,7 @@ type Range struct {
 
 // Token contains the tokenized part of the strings and its prefix length
 type Token struct {
-	text         *[]rune
+	text         []rune
 	prefixLength int
 }
 
@@ -75,8 +75,7 @@ func withPrefixLengths(tokens []string, begin int) []Token {
 	for idx, token := range tokens {
 		// Need to define a new local variable instead of the reused token to take
 		// the pointer to it
-		runes := []rune(token)
+		ret[idx] = Token{text: []rune(token), prefixLength: prefixLength}
-		ret[idx] = Token{text: &runes, prefixLength: prefixLength}
 		prefixLength += len([]rune(token))
 	}
 	return ret
@@ -88,13 +87,13 @@ const (
 	awkWhite
 )
 
-func awkTokenizer(input *string) ([]string, int) {
+func awkTokenizer(input []rune) ([]string, int) {
 	// 9, 32
 	ret := []string{}
 	str := []rune{}
 	prefixLength := 0
 	state := awkNil
-	for _, r := range []rune(*input) {
+	for _, r := range input {
 		white := r == 9 || r == 32
 		switch state {
 		case awkNil:
@@ -126,34 +125,34 @@ func awkTokenizer(input *string) ([]string, int) {
 }
 
 // Tokenize tokenizes the given string with the delimiter
-func Tokenize(str *string, delimiter *regexp.Regexp) []Token {
+func Tokenize(runes []rune, delimiter *regexp.Regexp) []Token {
 	if delimiter == nil {
 		// AWK-style (\S+\s*)
-		tokens, prefixLength := awkTokenizer(str)
+		tokens, prefixLength := awkTokenizer(runes)
 		return withPrefixLengths(tokens, prefixLength)
 	}
-	tokens := delimiter.FindAllString(*str, -1)
+	tokens := delimiter.FindAllString(string(runes), -1)
 	return withPrefixLengths(tokens, 0)
 }
 
-func joinTokens(tokens *[]Token) *string {
+func joinTokens(tokens []Token) []rune {
-	ret := ""
+	ret := []rune{}
-	for _, token := range *tokens {
+	for _, token := range tokens {
-		ret += string(*token.text)
+		ret = append(ret, token.text...)
 	}
-	return &ret
+	return ret
 }
 
-func joinTokensAsRunes(tokens *[]Token) *[]rune {
+func joinTokensAsRunes(tokens []Token) []rune {
 	ret := []rune{}
-	for _, token := range *tokens {
+	for _, token := range tokens {
-		ret = append(ret, *token.text...)
+		ret = append(ret, token.text...)
 	}
-	return &ret
+	return ret
 }
 
 // Transform is used to transform the input when --with-nth option is given
-func Transform(tokens []Token, withNth []Range) *[]Token {
+func Transform(tokens []Token, withNth []Range) []Token {
 	transTokens := make([]Token, len(withNth))
 	numTokens := len(tokens)
 	for idx, r := range withNth {
@@ -162,14 +161,14 @@ func Transform(tokens []Token, withNth []Range) *[]Token {
 		if r.begin == r.end {
 			idx := r.begin
 			if idx == rangeEllipsis {
-				part = append(part, *joinTokensAsRunes(&tokens)...)
+				part = append(part, joinTokensAsRunes(tokens)...)
 			} else {
 				if idx < 0 {
 					idx += numTokens + 1
 				}
 				if idx >= 1 && idx <= numTokens {
 					minIdx = idx - 1
-					part = append(part, *tokens[idx-1].text...)
+					part = append(part, tokens[idx-1].text...)
 				}
 			}
 		} else {
@@ -196,7 +195,7 @@ func Transform(tokens []Token, withNth []Range) *[]Token {
 			minIdx = util.Max(0, begin-1)
 			for idx := begin; idx <= end; idx++ {
 				if idx >= 1 && idx <= numTokens {
-					part = append(part, *tokens[idx-1].text...)
+					part = append(part, tokens[idx-1].text...)
 				}
 			}
 		}
@@ -206,7 +205,7 @@ func Transform(tokens []Token, withNth []Range) *[]Token {
 		} else {
 			prefixLength = 0
 		}
-		transTokens[idx] = Token{&part, prefixLength}
+		transTokens[idx] = Token{part, prefixLength}
 	}
-	return &transTokens
+	return transTokens
 }

src/tokenizer_test.go

@@ -43,14 +43,14 @@ func TestParseRange(t *testing.T) {
 func TestTokenize(t *testing.T) {
 	// AWK-style
 	input := "  abc:  def:  ghi  "
-	tokens := Tokenize(&input, nil)
+	tokens := Tokenize([]rune(input), nil)
-	if string(*tokens[0].text) != "abc:  " || tokens[0].prefixLength != 2 {
+	if string(tokens[0].text) != "abc:  " || tokens[0].prefixLength != 2 {
 		t.Errorf("%s", tokens)
 	}
 
 	// With delimiter
-	tokens = Tokenize(&input, delimiterRegexp(":"))
+	tokens = Tokenize([]rune(input), delimiterRegexp(":"))
-	if string(*tokens[0].text) != "  abc:" || tokens[0].prefixLength != 0 {
+	if string(tokens[0].text) != "  abc:" || tokens[0].prefixLength != 0 {
 		t.Errorf("%s", tokens)
 	}
 }
@@ -58,39 +58,39 @@ func TestTokenize(t *testing.T) {
 func TestTransform(t *testing.T) {
 	input := "  abc:  def:  ghi:  jkl"
 	{
-		tokens := Tokenize(&input, nil)
+		tokens := Tokenize([]rune(input), nil)
 		{
 			ranges := splitNth("1,2,3")
 			tx := Transform(tokens, ranges)
-			if *joinTokens(tx) != "abc:  def:  ghi:  " {
+			if string(joinTokens(tx)) != "abc:  def:  ghi:  " {
-				t.Errorf("%s", *tx)
+				t.Errorf("%s", tx)
 			}
 		}
 		{
 			ranges := splitNth("1..2,3,2..,1")
 			tx := Transform(tokens, ranges)
-			if *joinTokens(tx) != "abc:  def:  ghi:  def:  ghi:  jklabc:  " ||
+			if string(joinTokens(tx)) != "abc:  def:  ghi:  def:  ghi:  jklabc:  " ||
-				len(*tx) != 4 ||
+				len(tx) != 4 ||
-				string(*(*tx)[0].text) != "abc:  def:  " || (*tx)[0].prefixLength != 2 ||
+				string(tx[0].text) != "abc:  def:  " || tx[0].prefixLength != 2 ||
-				string(*(*tx)[1].text) != "ghi:  " || (*tx)[1].prefixLength != 14 ||
+				string(tx[1].text) != "ghi:  " || tx[1].prefixLength != 14 ||
-				string(*(*tx)[2].text) != "def:  ghi:  jkl" || (*tx)[2].prefixLength != 8 ||
+				string(tx[2].text) != "def:  ghi:  jkl" || tx[2].prefixLength != 8 ||
-				string(*(*tx)[3].text) != "abc:  " || (*tx)[3].prefixLength != 2 {
+				string(tx[3].text) != "abc:  " || tx[3].prefixLength != 2 {
-				t.Errorf("%s", *tx)
+				t.Errorf("%s", tx)
 			}
 		}
 	}
 	{
-		tokens := Tokenize(&input, delimiterRegexp(":"))
+		tokens := Tokenize([]rune(input), delimiterRegexp(":"))
 		{
 			ranges := splitNth("1..2,3,2..,1")
 			tx := Transform(tokens, ranges)
-			if *joinTokens(tx) != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
+			if string(joinTokens(tx)) != "  abc:  def:  ghi:  def:  ghi:  jkl  abc:" ||
-				len(*tx) != 4 ||
+				len(tx) != 4 ||
-				string(*(*tx)[0].text) != "  abc:  def:" || (*tx)[0].prefixLength != 0 ||
+				string(tx[0].text) != "  abc:  def:" || tx[0].prefixLength != 0 ||
-				string(*(*tx)[1].text) != "  ghi:" || (*tx)[1].prefixLength != 12 ||
+				string(tx[1].text) != "  ghi:" || tx[1].prefixLength != 12 ||
-				string(*(*tx)[2].text) != "  def:  ghi:  jkl" || (*tx)[2].prefixLength != 6 ||
+				string(tx[2].text) != "  def:  ghi:  jkl" || tx[2].prefixLength != 6 ||
-				string(*(*tx)[3].text) != "  abc:" || (*tx)[3].prefixLength != 0 {
+				string(tx[3].text) != "  abc:" || tx[3].prefixLength != 0 {
-				t.Errorf("%s", *tx)
+				t.Errorf("%s", tx)
 			}
 		}
 	}

src/util/util.go

@@ -6,6 +6,7 @@ import "C"
 import (
 	"os"
 	"time"
+	"unicode/utf8"
 )
 
 // Max returns the largest integer
@@ -19,7 +20,7 @@ func Max(first int, items ...int) int {
 	return max
 }
 
-// Max32 returns the smallest 32-bit integer
+// Min32 returns the smallest 32-bit integer
 func Min32(first int32, second int32) int32 {
 	if first <= second {
 		return first
@@ -69,22 +70,33 @@ func DurWithin(
 	return val
 }
 
-func Between(val int, min int, max int) bool {
-	return val >= min && val <= max
-}
-
 // IsTty returns true is stdin is a terminal
 func IsTty() bool {
 	return int(C.isatty(C.int(os.Stdin.Fd()))) != 0
 }
 
-func TrimRight(runes *[]rune) []rune {
+func TrimRight(runes []rune) []rune {
 	var i int
-	for i = len(*runes) - 1; i >= 0; i-- {
+	for i = len(runes) - 1; i >= 0; i-- {
-		char := (*runes)[i]
+		char := runes[i]
 		if char != ' ' && char != '\t' {
 			break
 		}
 	}
-	return (*runes)[0 : i+1]
+	return runes[0 : i+1]
+}
+
+func BytesToRunes(bytea []byte) []rune {
+	runes := make([]rune, 0, len(bytea))
+	for i := 0; i < len(bytea); {
+		if bytea[i] < utf8.RuneSelf {
+			runes = append(runes, rune(bytea[i]))
+			i++
+		} else {
+			r, sz := utf8.DecodeRune(bytea[i:])
+			i += sz
+			runes = append(runes, r)
+		}
+	}
+	return runes
 }

test/test_go.rb

@@ -72,17 +72,6 @@ class Tmux
     end
   end
 
-  def closed?
-    !go("list-window -F '#I'").include?(win)
-  end
-
-  def close
-    wait do
-      send_keys 'C-c', 'C-u', 'exit', :Enter
-      closed?
-    end
-  end
-
   def kill
     go("kill-window -t #{win} 2> /dev/null")
   end
@@ -152,21 +141,27 @@ class TestBase < Minitest::Test
 
   attr_reader :tmux
 
+  def tempname
+    [TEMPNAME,
+     caller_locations.map(&:label).find { |l| l =~ /^test_/ }].join '-'
+  end
+
   def setup
     ENV.delete 'FZF_DEFAULT_OPTS'
+    ENV.delete 'FZF_CTRL_T_COMMAND'
     ENV.delete 'FZF_DEFAULT_COMMAND'
-    File.unlink TEMPNAME while File.exists?(TEMPNAME)
   end
 
   def readonce
-    wait { File.exists?(TEMPNAME) }
+    wait { File.exists?(tempname) }
-    File.read(TEMPNAME)
+    File.read(tempname)
   ensure
-    File.unlink TEMPNAME while File.exists?(TEMPNAME)
+    File.unlink tempname while File.exists?(tempname)
+    tmux.prepare
   end
 
   def fzf(*opts)
-    fzf!(*opts) + " > #{TEMPNAME}.tmp; mv #{TEMPNAME}.tmp #{TEMPNAME}"
+    fzf!(*opts) + " > #{tempname}.tmp; mv #{tempname}.tmp #{tempname}"
   end
 
   def fzf!(*opts)
@@ -214,7 +209,6 @@ class TestGoFZF < TestBase
     assert_equal '> 391',        lines[-1]
 
     tmux.send_keys :Enter
-    tmux.close
     assert_equal '1391', readonce.chomp
   end
 
@@ -223,7 +217,6 @@ class TestGoFZF < TestBase
     tmux.until { |lines| lines.last =~ /^>/ }
 
     tmux.send_keys :Enter
-    tmux.close
     assert_equal 'hello', readonce.chomp
   end
 
@@ -290,7 +283,6 @@ class TestGoFZF < TestBase
     # CTRL-M
     tmux.send_keys "C-M"
     tmux.until { |lines| lines.last !~ /^>/ }
-    tmux.close
   end
 
   def test_multi_order
@@ -303,7 +295,6 @@ class TestGoFZF < TestBase
     tmux.until { |lines| lines[-2].include? '(6)' }
     tmux.send_keys "C-M"
     assert_equal %w[3 2 5 6 8 7], readonce.split($/)
-    tmux.close
   end
 
   def test_with_nth
@@ -321,7 +312,9 @@ class TestGoFZF < TestBase
 
       # However, the output must not be transformed
       if multi
-        tmux.send_keys :BTab, :BTab, :Enter
+        tmux.send_keys :BTab, :BTab
+        tmux.until { |lines| lines[-2].include?('(2)') }
+        tmux.send_keys :Enter
         assert_equal ['  1st 2nd 3rd/', '  first second third/'], readonce.split($/)
       else
         tmux.send_keys '^', '3'
@@ -357,7 +350,9 @@ class TestGoFZF < TestBase
     [:'0', :'1', [:'1', :'0']].each do |opt|
       tmux.send_keys "seq 1 100 | #{fzf :print_query, :multi, :q, 5, *opt}", :Enter
       tmux.until { |lines| lines.last =~ /^> 5/ }
-      tmux.send_keys :BTab, :BTab, :BTab, :Enter
+      tmux.send_keys :BTab, :BTab, :BTab
+      tmux.until { |lines| lines[-2].include?('(3)') }
+      tmux.send_keys :Enter
       assert_equal ['5', '5', '15', '25'], readonce.split($/)
     end
   end
@@ -374,7 +369,9 @@ class TestGoFZF < TestBase
     tmux.until { |lines| lines[-1] == '>' }
     tmux.send_keys 9
     tmux.until { |lines| lines[-2] == '  19/100' }
-    tmux.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     tmux.until { |lines| lines[-1] == '>' }
     tmux.send_keys 'C-K', :Enter
     assert_equal ['1919'], readonce.split($/)
@@ -383,7 +380,9 @@ class TestGoFZF < TestBase
   def test_tac
     tmux.send_keys "seq 1 1000 | #{fzf :tac, :multi}", :Enter
     tmux.until { |lines| lines[-2].include? '1000/1000' }
-    tmux.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     assert_equal %w[1000 999 998], readonce.split($/)
   end
 
@@ -391,7 +390,9 @@ 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.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     assert_equal %w[99 999 998], readonce.split($/)
   end
 
@@ -400,7 +401,9 @@ class TestGoFZF < TestBase
     tmux.until { |lines| lines[-2].include? '1000/1000' }
     tmux.send_keys '00'
     tmux.until { |lines| lines[-2].include? '10/1000' }
-    tmux.send_keys :BTab, :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter
     assert_equal %w[1000 900 800], readonce.split($/)
   end
 
@@ -454,16 +457,12 @@ class TestGoFZF < TestBase
   end
 
   def test_unicode_case
-    tempname = TEMPNAME + Time.now.to_f.to_s
     writelines tempname, %w[строКА1 СТРОКА2 строка3 Строка4]
     assert_equal %w[СТРОКА2 Строка4], `cat #{tempname} | #{FZF} -fС`.split($/)
     assert_equal %w[строКА1 СТРОКА2 строка3 Строка4], `cat #{tempname} | #{FZF} -fс`.split($/)
-  rescue
-    File.unlink tempname
   end
 
   def test_tiebreak
-    tempname = TEMPNAME + Time.now.to_f.to_s
     input = %w[
       --foobar--------
       -----foobar---
@@ -500,8 +499,32 @@ class TestGoFZF < TestBase
     ], `cat #{tempname} | #{FZF} -ffoobar --tiebreak end`.split($/)
 
     assert_equal input, `cat #{tempname} | #{FZF} -f"!z" -x --tiebreak end`.split($/)
-  rescue
+  end
-    File.unlink tempname
+
+  def test_tiebreak_length_with_nth
+    input = %w[
+      1:hell
+      123:hello
+      12345:he
+      1234567:h
+    ]
+    writelines tempname, input
+
+    output = %w[
+      1:hell
+      12345:he
+      123:hello
+      1234567:h
+    ]
+    assert_equal output, `cat #{tempname} | #{FZF} -fh`.split($/)
+
+    output = %w[
+      1234567:h
+      12345:he
+      1:hell
+      123:hello
+    ]
+    assert_equal output, `cat #{tempname} | #{FZF} -fh -n2 -d:`.split($/)
   end
 
   def test_invalid_cache
@@ -527,15 +550,230 @@ class TestGoFZF < TestBase
   end
 
   def test_long_line
-    tempname = TEMPNAME + Time.now.to_f.to_s
     data = '.' * 256 * 1024
     File.open(tempname, 'w') do |f|
       f << data
     end
     assert_equal data, `cat #{tempname} | #{FZF} -f .`.chomp
-  ensure
-    File.unlink tempname
   end
+
+  def test_read0
+    lines = `find .`.split($/)
+    assert_equal lines.last, `find . | #{FZF} -e -f "^#{lines.last}$"`.chomp
+    assert_equal lines.last, `find . -print0 | #{FZF} --read0 -e -f "^#{lines.last}$"`.chomp
+  end
+
+  def test_select_all_deselect_all_toggle_all
+    tmux.send_keys "seq 100 | #{fzf '--bind ctrl-a:select-all,ctrl-d:deselect-all,ctrl-t:toggle-all --multi'}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys :BTab, :BTab, :BTab
+    tmux.until { |lines| lines[-2].include? '(3)' }
+    tmux.send_keys 'C-t'
+    tmux.until { |lines| lines[-2].include? '(97)' }
+    tmux.send_keys 'C-a'
+    tmux.until { |lines| lines[-2].include? '(100)' }
+    tmux.send_keys :Tab, :Tab
+    tmux.until { |lines| lines[-2].include? '(98)' }
+    tmux.send_keys 'C-d'
+    tmux.until { |lines| !lines[-2].include? '(' }
+    tmux.send_keys :Tab, :Tab
+    tmux.until { |lines| lines[-2].include? '(2)' }
+    tmux.send_keys 0
+    tmux.until { |lines| lines[-2].include? '10/100' }
+    tmux.send_keys 'C-a'
+    tmux.until { |lines| lines[-2].include? '(12)' }
+    tmux.send_keys :Enter
+    assert_equal %w[2 1 10 20 30 40 50 60 70 80 90 100], readonce.split($/)
+  end
+
+  def test_history
+    history_file = '/tmp/fzf-test-history'
+
+    # History with limited number of entries
+    File.unlink history_file rescue nil
+    opts = "--history=#{history_file} --history-size=4"
+    input = %w[00 11 22 33 44].map { |e| e + $/ }
+    input.each do |keys|
+      tmux.send_keys "seq 100 | #{fzf opts}", :Enter
+      tmux.until { |lines| lines[-2].include? '100/100' }
+      tmux.send_keys keys
+      tmux.until { |lines| lines[-2].include? '1/100' }
+      tmux.send_keys :Enter
+      readonce
+    end
+    assert_equal input[1..-1], File.readlines(history_file)
+
+    # Update history entries (not changed on disk)
+    tmux.send_keys "seq 100 | #{fzf opts}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys 'C-p'
+    tmux.until { |lines| lines[-1].end_with? '> 44' }
+    tmux.send_keys 'C-p'
+    tmux.until { |lines| lines[-1].end_with? '> 33' }
+    tmux.send_keys :BSpace
+    tmux.until { |lines| lines[-1].end_with? '> 3' }
+    tmux.send_keys 1
+    tmux.until { |lines| lines[-1].end_with? '> 31' }
+    tmux.send_keys 'C-p'
+    tmux.until { |lines| lines[-1].end_with? '> 22' }
+    tmux.send_keys 'C-n'
+    tmux.until { |lines| lines[-1].end_with? '> 31' }
+    tmux.send_keys 0
+    tmux.until { |lines| lines[-1].end_with? '> 310' }
+    tmux.send_keys :Enter
+    readonce
+    assert_equal %w[22 33 44 310].map { |e| e + $/ }, File.readlines(history_file)
+
+    # Respect --bind option
+    tmux.send_keys "seq 100 | #{fzf opts + ' --bind ctrl-p:next-history,ctrl-n:previous-history'}", :Enter
+    tmux.until { |lines| lines[-2].include? '100/100' }
+    tmux.send_keys 'C-n', 'C-n', 'C-n', 'C-n', 'C-p'
+    tmux.until { |lines| lines[-1].end_with?('33') }
+    tmux.send_keys :Enter
+  ensure
+    File.unlink history_file
+  end
+
+  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
+    tmux.send_keys :Up
+    tmux.send_keys :Escape, :b, :Escape, :b
+    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
+    tmux.send_keys :Enter
+    readonce
+    assert_equal ['["1"]', '["1"]', '("2"), ("2")', '("2"), ("2")', '("3"), ["3"], @"3"@'],
+      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' }
+    tmux.send_keys :Down
+    tmux.until { |lines| lines[-10].start_with? '>' }
+    tmux.send_keys :Down
+    tmux.until { |lines| lines[-9].start_with? '>' }
+    tmux.send_keys :PgUp
+    tmux.until { |lines| lines[-10].start_with? '>' }
+    tmux.send_keys :PgUp
+    tmux.until { |lines| lines[-3].start_with? '>' }
+    tmux.send_keys :Up
+    tmux.until { |lines| lines[-4].start_with? '>' }
+    tmux.send_keys :PgDn
+    tmux.until { |lines| lines[-3].start_with? '>' }
+    tmux.send_keys :PgDn
+    tmux.until { |lines| lines[-10].start_with? '>' }
+  end
+
+  def test_header_lines
+    tmux.send_keys "seq 100 | #{fzf '--header-lines=10 -q 5'}", :Enter
+    2.times do
+      tmux.until do |lines|
+        lines[-2].include?('/90') &&
+        lines[-3]  == '  1' &&
+        lines[-4]  == '  2' &&
+        lines[-13] == '> 15'
+      end
+      tmux.send_keys :Down
+    end
+    tmux.send_keys :Enter
+    assert_equal '15', readonce.chomp
+  end
+
+  def test_header_lines_reverse
+    tmux.send_keys "seq 100 | #{fzf '--header-lines=10 -q 5 --reverse'}", :Enter
+    2.times do
+      tmux.until do |lines|
+        lines[1].include?('/90') &&
+        lines[2]  == '  1' &&
+        lines[3]  == '  2' &&
+        lines[12] == '> 15'
+      end
+      tmux.send_keys :Up
+    end
+    tmux.send_keys :Enter
+    assert_equal '15', readonce.chomp
+  end
+
+  def test_header_lines_overflow
+    tmux.send_keys "seq 100 | #{fzf '--header-lines=200'}", :Enter
+    tmux.until do |lines|
+      lines[-2].include?('0/0') &&
+      lines[-3].include?('  1')
+    end
+    tmux.send_keys :Enter
+    assert_equal '', readonce.chomp
+  end
+
+  def test_header_lines_with_nth
+    tmux.send_keys "seq 100 | #{fzf "--header-lines 5 --with-nth 1,1,1,1,1"}", :Enter
+    tmux.until do |lines|
+      lines[-2].include?('95/95') &&
+      lines[-3] == '  11111' &&
+      lines[-7] == '  55555' &&
+      lines[-8] == '> 66666'
+    end
+    tmux.send_keys :Enter
+    assert_equal '6', readonce.chomp
+  end
+
+  def test_header_file
+    tmux.send_keys "seq 100 | #{fzf "--header-file <(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
+    end
+  end
+
+  def test_header_file_reverse
+    tmux.send_keys "seq 100 | #{fzf "--header-file=<(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
+    end
+  end
+
+  def test_canel
+    tmux.send_keys "seq 10 | #{fzf "--bind 2:cancel"}", :Enter
+    tmux.until { |lines| lines[-2].include?('10/10') }
+    tmux.send_keys '123'
+    tmux.until { |lines| lines[-1] == '> 3' && lines[-2].include?('1/10') }
+    tmux.send_keys 'C-y', 'C-y'
+    tmux.until { |lines| lines[-1] == '> 311' }
+    tmux.send_keys 2
+    tmux.until { |lines| lines[-1] == '>' }
+    tmux.send_keys 2
+    tmux.prepare
+  end
+
+  def test_margin
+    tmux.send_keys "yes | head -1000 | #{fzf "--margin 5,3"}", :Enter
+    tmux.until { |lines| lines[4] == '' && lines[5] == '     y' }
+    tmux.send_keys :Enter
+  end
+
+  def test_margin_reverse
+    tmux.send_keys "seq 1000 | #{fzf "--margin 7,5 --reverse"}", :Enter
+    tmux.until { |lines| lines[1 + 7] == '       1000/1000' }
+    tmux.send_keys :Enter
+  end
+
+  def test_invalid_term
+    tmux.send_keys "TERM=xxx fzf", :Enter
+    tmux.until { |lines| lines.any? { |l| l.include? 'Invalid $TERM: xxx' } }
+  end
+
 private
   def writelines path, lines
     File.unlink path while File.exists? path
@@ -552,12 +790,20 @@ module TestShell
     @tmux.kill
   end
 
+  def set_var name, val
+    tmux.prepare
+    tmux.send_keys "export #{name}='#{val}'", :Enter
+    tmux.prepare
+  end
+
   def test_ctrl_t
     tmux.prepare
     tmux.send_keys 'C-t', pane: 0
     lines = tmux.until(1) { |lines| lines.item_count > 1 }
     expected = lines.values_at(-3, -4).map { |line| line[2..-1] }.join(' ')
-    tmux.send_keys :BTab, :BTab, :Enter, pane: 1
+    tmux.send_keys :BTab, :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include?('(2)') }
+    tmux.send_keys :Enter, pane: 1
     tmux.until(0) { |lines| lines[-1].include? expected }
     tmux.send_keys 'C-c'
 
@@ -566,15 +812,27 @@ module TestShell
     tmux.send_keys 'C-t', pane: 0
     lines = tmux.until(0) { |lines| lines.item_count > 1 }
     expected = lines.values_at(-3, -4).map { |line| line[2..-1] }.join(' ')
-    tmux.send_keys :BTab, :BTab, :Enter, pane: 0
+    tmux.send_keys :BTab, :BTab, pane: 0
+    tmux.until(0) { |lines| lines[-2].include?('(2)') }
+    tmux.send_keys :Enter, pane: 0
     tmux.until(0) { |lines| lines[-1].include? expected }
     tmux.send_keys 'C-c', 'C-d'
   end
 
+  def test_ctrl_t_command
+    set_var "FZF_CTRL_T_COMMAND", "seq 100"
+    tmux.send_keys 'C-t', pane: 0
+    lines = tmux.until(1) { |lines| lines.item_count == 100 }
+    tmux.send_keys :BTab, :BTab, :BTab, pane: 1
+    tmux.until(1) { |lines| lines[-2].include?('(3)') }
+    tmux.send_keys :Enter, pane: 1
+    tmux.until(0) { |lines| lines[-1].include? '1 2 3' }
+  end
+
   def test_alt_c
     tmux.prepare
     tmux.send_keys :Escape, :c, pane: 0
-    lines = tmux.until(1) { |lines| lines.item_count > 0 }
+    lines = tmux.until(1) { |lines| lines.item_count > 0 && lines[-3][2..-1] }
     expected = lines[-3][2..-1]
     tmux.send_keys :Enter, pane: 1
     tmux.prepare
@@ -611,7 +869,9 @@ 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 :BTab, :BTab, :Enter
+    tmux.send_keys :BTab, :BTab
+    tmux.until(1) { |lines| lines[-2].include?('(2)') }
+    tmux.send_keys :Enter
     tmux.until do |lines|
       tmux.send_keys 'C-L'
       lines[-1].include?('/tmp/fzf-test/10') &&
@@ -708,6 +968,7 @@ class TestBash < TestBase
   include CompletionTest
 
   def new_shell
+    tmux.prepare
     tmux.send_keys "FZF_TMUX=0 #{Shell.bash}", :Enter
     tmux.prepare
   end
@@ -742,6 +1003,12 @@ class TestFish < TestBase
     tmux.until { |lines| lines.empty? }
   end
 
+  def set_var name, val
+    tmux.prepare
+    tmux.send_keys "set -g #{name} '#{val}'", :Enter
+    tmux.prepare
+  end
+
   def setup
     super
     @tmux = Tmux.new :fish