Update doc

Close #338

CHANGELOG.md

@@ -1,6 +1,27 @@
 CHANGELOG
 =========
 
+0.10.5
+------
+
+- `'`-prefix to unquote the term in `--extended-exact` mode
+- Backward scan when `--tiebreak=end` is set
+
+0.10.4
+------
+
+- Fixed to remove ANSI code from output when `--with-nth` is set
+
+0.10.3
+------
+
+- Fixed slow performance of `--with-nth` when used with `--delimiter`
+    - Regular expression engine of Golang as of now is very slow, so the fixed
+      version will treat the given delimiter pattern as a plain string instead
+      of a regular expression unless it contains special characters and is
+      a valid regular expression.
+    - Simpler regular expression for delimiter for better performance
+
 0.10.2
 ------
 

README.md

@@ -124,8 +124,9 @@ such as: `^music .mp3$ sbtrkt !rmx`
 | `'wild`  | Items that include `wild`        | exact-match (quoted) |
 | `!'fire` | Items that do not include `fire` | inverse-exact-match  |
 
-If you don't need fuzzy matching and do not wish to "quote" every word, start
+If you don't prefer fuzzy matching and do not wish to "quote" every word,
-fzf with `-e` or `--extended-exact` option.
+start fzf with `-e` or `--extended-exact` option. Note that in
+`--extended-exact` mode, `'`-prefix "unquotes" the term.
 
 #### Environment variables
 
@@ -254,6 +255,9 @@ export FZF_COMPLETION_OPTS='+c -x'
 Usage as Vim plugin
 -------------------
 
+This repository only enables basic integration with Vim. If you're looking for
+more, check out [fzf.vim](https://github.com/junegunn/fzf.vim) project.
+
 (Note: To use fzf in GVim, an external terminal emulator is required.)
 
 #### `:FZF[!]`
@@ -286,10 +290,8 @@ customization.
 
 #### `fzf#run([options])`
 
-For more advanced uses, you can call `fzf#run()` function which returns the list
+For more advanced uses, you can use `fzf#run()` function with the following
-of the selected items.
+options.
-
-`fzf#run()` may take an options-dictionary:
 
 | Option name                | Type          | Description                                                      |
 | -------------------------- | ------------- | ---------------------------------------------------------------- |
@@ -305,65 +307,7 @@ of the selected items.
 | `launcher`                 | string        | External terminal emulator to start fzf with (GVim only)         |
 | `launcher`                 | funcref       | Function for generating `launcher` string (GVim only)            |
 
-_However on Neovim `fzf#run` is asynchronous and does not return values so you
+Examples can be found on [the wiki
-should use `sink` or `sink*` to process the output from fzf._
-
-##### Examples
-
-If `sink` option is not given, `fzf#run` will simply return the list.
-
-```vim
-let items = fzf#run({ 'options': '-m +c', 'dir': '~', 'source': 'ls' })
-```
-
-But if `sink` is given as a string, the command will be executed for each
-selected item.
-
-```vim
-" Each selected item will be opened in a new tab
-let items = fzf#run({ 'sink': 'tabe', 'options': '-m +c', 'dir': '~', 'source': 'ls' })
-```
-
-We can also use a Vim list as the source as follows:
-
-```vim
-" Choose a color scheme with fzf
-nnoremap <silent> <Leader>C :call fzf#run({
-\   'source':
-\     map(split(globpath(&rtp, "colors/*.vim"), "\n"),
-\         "substitute(fnamemodify(v:val, ':t'), '\\..\\{-}$', '', '')"),
-\   'sink':     'colo',
-\   'options':  '+m',
-\   'left':     20,
-\   'launcher': 'xterm -geometry 20x30 -e bash -ic %s'
-\ })<CR>
-```
-
-`sink` option can be a function reference. The following example creates a
-handy mapping that selects an open buffer.
-
-```vim
-" List of buffers
-function! s:buflist()
-  redir => ls
-  silent ls
-  redir END
-  return split(ls, '\n')
-endfunction
-
-function! s:bufopen(e)
-  execute 'buffer' matchstr(a:e, '^[ 0-9]*')
-endfunction
-
-nnoremap <silent> <Leader><Enter> :call fzf#run({
-\   'source':  reverse(<sid>buflist()),
-\   'sink':    function('<sid>bufopen'),
-\   'options': '+m',
-\   'down':    len(<sid>buflist()) + 2
-\ })<CR>
-```
-
-More examples can be found on [the wiki
 page](https://github.com/junegunn/fzf/wiki/Examples-(vim)).
 
 Tips
@@ -425,14 +369,6 @@ of fzf to a temporary file.
 fzf > $TMPDIR/fzf.result; and vim (cat $TMPDIR/fzf.result)
 ```
 
-#### Handling UTF-8 NFD paths on OSX
-
-Use iconv to convert NFD paths to NFC:
-
-```sh
-find . | iconv -f utf-8-mac -t utf8//ignore | fzf
-```
-
 License
 -------
 

bin/fzf-tmux

@@ -117,7 +117,9 @@ mkfifo $fifo3
 # Build arguments to fzf
 opts=""
 for arg in "${args[@]}"; do
-  opts="$opts \"${arg//\"/\\\"}\""
+  arg="${arg//\"/\\\"}"
+  arg="${arg//\`/\\\`}"
+  opts="$opts \"$arg\""
 done
 
 if [ -n "$term" -o -t 0 ]; then

install

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
-[[ "$@" =~ --pre ]] && version=0.10.2 pre=1 ||
+[[ "$@" =~ --pre ]] && version=0.10.5 pre=1 ||
-                       version=0.10.2 pre=0
+                       version=0.10.5 pre=0
 
 cd $(dirname $BASH_SOURCE)
 fzf_base=$(pwd)
@@ -21,16 +21,21 @@ ask() {
 
 check_binary() {
   echo -n "  - Checking fzf executable ... "
-  local output=$("$fzf_base"/bin/fzf --version 2>&1)
+  local output
-  if [ "$version" = "$output" ]; then
+  output=$("$fzf_base"/bin/fzf --version 2>&1)
+  if [ $? -ne 0 ]; then
+    echo "Error: $output"
+    binary_error="Invalid binary"
+  elif [ "$version" != "$output" ]; then
+    echo "$output != $version"
+    binary_error="Invalid version"
+  else
     echo "$output"
     binary_error=""
-  else
+    return 0
-    echo "$output != $version"
-    rm -f "$fzf_base"/bin/fzf
-    binary_error="Invalid binary"
-    return 1
   fi
+  rm -f "$fzf_base"/bin/fzf
+  return 1
 }
 
 symlink() {
@@ -75,7 +80,12 @@ download() {
     return
   fi
 
-  chmod +x $1 && symlink $1 && check_binary
+  chmod +x $1 && symlink $1 || return 1
+  if [[ $1 =~ linux_amd64$ ]]; then
+    check_binary || download $1-static
+  else
+    check_binary
+  fi
 }
 
 # Try to download binary executable
@@ -96,6 +106,7 @@ if [ -n "$binary_error" ]; then
     echo "No prebuilt binary for $archi ... "
   else
     echo "  - $binary_error !!!"
+    exit 1
   fi
   echo "Installing legacy Ruby version ..."
 
@@ -250,6 +261,7 @@ append_line() {
   if [ -n "$line" ]; then
     echo "    - Already exists: line #$line"
   else
+    echo >> "$2"
     echo "$1" >> "$2"
     echo "    + Added"
   fi

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 "Aug 2015" "fzf 0.10.2" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Sep 2015" "fzf 0.10.5" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -374,29 +374,40 @@ mode". In this mode, you can specify multiple patterns delimited by spaces,
 such as: \fB'wild ^music .mp3$ sbtrkt !rmx\fR
 
 .SS Exact-match (quoted)
-A term that is prefixed by a single-quote character (') is interpreted as an
+A term that is prefixed by a single-quote character (\fB'\fR) is interpreted as
-"exact-match" (or "non-fuzzy") term. fzf will search for the exact occurrences
+an "exact-match" (or "non-fuzzy") term. fzf will search for the exact
-of the string.
+occurrences of the string.
 
 .SS Anchored-match
-A term can be prefixed by ^, or suffixed by $ to become an anchored-match term.
+A term can be prefixed by \fB^\fR, or suffixed by \fB$\fR to become an
-Then fzf will search for the items that start with or end with the given
+anchored-match term. Then fzf will search for the items that start with or end
-string. An anchored-match term is also an exact-match term.
+with the given string. An anchored-match term is also an exact-match term.
 
 .SS Negation
-If a term is prefixed by !, fzf will exclude the items that satisfy the term
+If a term is prefixed by \fB!\fR, fzf will exclude the items that satisfy the
-from the result.
+term from the result.
 
 .SS Extended-exact mode
-If you don't need fuzzy matching at all and do not wish to "quote" (prefixing
+If you don't prefer fuzzy matching and do not wish to "quote" (prefixing with
-with ') every word, start fzf with \fB-e\fR or \fB--extended-exact\fR option
+\fB'\fR) every word, start fzf with \fB-e\fR or \fB--extended-exact\fR option
-(instead of \fB-x\fR or \fB--extended\fR).
+(instead of \fB-x\fR or \fB--extended\fR). Note that in \fB--extended-exact\fR
+mode, \fB'\fR-prefix "unquotes" the term.
 
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
 
 .SH SEE ALSO
+.B Project homepage:
+.RS
 .I https://github.com/junegunn/fzf
+.RE
+.br
+.R ""
+.br
+.B Extra Vim plugin:
+.RS
+.I https://github.com/junegunn/fzf.vim
+.RE
 
 .SH LICENSE
 MIT

plugin/fzf.vim

@@ -80,7 +80,7 @@ function! s:shellesc(arg)
 endfunction
 
 function! s:escape(path)
-  return escape(a:path, ' %#\')
+  return escape(a:path, ' %#''"\')
 endfunction
 
 " Upgrade legacy options
@@ -164,7 +164,13 @@ function! s:fzf_tmux(dict)
   let size = ''
   for o in ['up', 'down', 'left', 'right']
     if s:present(a:dict, o)
-      let size = '-'.o[0].(a:dict[o] == 1 ? '' : a:dict[o])
+      let spec = a:dict[o]
+      if (o == 'up' || o == 'down') && spec[0] == '~'
+        let size = '-'.o[0].s:calc_size(&lines, spec[1:], a:dict)
+      else
+        " Legacy boolean option
+        let size = '-'.o[0].(spec == 1 ? '' : spec)
+      endif
       break
     endif
   endfor
@@ -211,12 +217,13 @@ let s:launcher = function('s:xterm_launcher')
 function! s:execute(dict, command, temps)
   call s:pushd(a:dict)
   silent! !clear 2> /dev/null
+  let escaped = escape(substitute(a:command, '\n', '\\n', 'g'), '%#')
   if has('gui_running')
     let Launcher = get(a:dict, 'launcher', get(g:, 'Fzf_launcher', get(g:, 'fzf_launcher', s:launcher)))
     let fmt = type(Launcher) == 2 ? call(Launcher, []) : Launcher
-    let command = printf(fmt, "'".substitute(a:command, "'", "'\"'\"'", 'g')."'")
+    let command = printf(fmt, "'".substitute(escaped, "'", "'\"'\"'", 'g')."'")
   else
-    let command = a:command
+    let command = escaped
   endif
   execute 'silent !'.command
   redraw!
@@ -244,12 +251,21 @@ function! s:execute_tmux(dict, command, temps)
   return s:callback(a:dict, a:temps)
 endfunction
 
-function! s:calc_size(max, val)
+function! s:calc_size(max, val, dict)
   if a:val =~ '%$'
-    return a:max * str2nr(a:val[:-2]) / 100
+    let size = a:max * str2nr(a:val[:-2]) / 100
   else
-    return min([a:max, a:val])
+    let size = min([a:max, str2nr(a:val)])
   endif
+
+  let srcsz = -1
+  if type(get(a:dict, 'source', 0)) == type([])
+    let srcsz = len(a:dict.source)
+  endif
+
+  let opts = get(a:dict, 'options', '').$FZF_DEFAULT_OPTS
+  let margin = stridx(opts, '--inline-info') > stridx(opts, '--no-inline-info') ? 1 : 2
+  return srcsz >= 0 ? min([srcsz + margin, size]) : size
 endfunction
 
 function! s:getpos()
@@ -268,7 +284,11 @@ function! s:split(dict)
       let val = get(a:dict, dir, '')
       if !empty(val)
         let [cmd, resz, max] = triple
-        let sz = s:calc_size(max, val)
+        if (dir == 'up' || dir == 'down') && val[0] == '~'
+          let sz = s:calc_size(max, val[1:], a:dict)
+        else
+          let sz = s:calc_size(max, val, {})
+        endif
         execute cmd sz.'new'
         execute resz sz
         return
@@ -358,7 +378,7 @@ endfunction
 
 let s:default_action = {
   \ 'ctrl-m': 'e',
-  \ 'ctrl-t': 'tabedit',
+  \ 'ctrl-t': 'tab split',
   \ 'ctrl-x': 'split',
   \ 'ctrl-v': 'vsplit' }
 
@@ -384,7 +404,7 @@ function! s:cmd(bang, ...) abort
   let args = extend(['--expect='.join(keys(s:action), ',')], a:000)
   let opts = {}
   if len(args) > 0 && isdirectory(expand(args[-1]))
-    let opts.dir = remove(args, -1)
+    let opts.dir = substitute(remove(args, -1), '\\\(["'']\)', '\1', 'g')
   endif
   if !a:bang
     let opts.down = get(g:, 'fzf_height', get(g:, 'fzf_tmux_height', s:default_height))

shell/completion.zsh

@@ -99,7 +99,11 @@ EOF
 }
 
 fzf-completion() {
-  local tokens cmd prefix trigger tail fzf matches lbuf d_cmds
+  local tokens cmd prefix trigger tail fzf matches lbuf d_cmds sws
+  if setopt | grep shwordsplit > /dev/null; then
+    sws=1
+    unsetopt shwordsplit
+  fi
 
   # http://zsh.sourceforge.net/FAQ/zshfaq03.html
   # http://zsh.sourceforge.net/Doc/Release/Expansion.html#Parameter-Expansion-Flags
@@ -148,6 +152,7 @@ fzf-completion() {
   else
     eval "zle ${fzf_default_completion:-expand-or-complete}"
   fi
+  [ -n "$sws" ] && setopt shwordsplit
 }
 
 [ -z "$fzf_default_completion" ] &&

shell/key-bindings.fish

@@ -19,7 +19,7 @@ function fzf_key_bindings
       -o -type f -print \
       -o -type d -print \
       -o -type l -print 2> /dev/null | sed 1d | cut -b3-"
-    eval $FZF_CTRL_T_COMMAND | eval (__fzfcmd) -m > $TMPDIR/fzf.result
+    eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)" -m > $TMPDIR/fzf.result"
     and commandline -i (cat $TMPDIR/fzf.result | __fzf_escape)
     commandline -f repaint
     rm -f $TMPDIR/fzf.result

src/Dockerfile.arch

@@ -2,6 +2,7 @@ FROM base/archlinux:2014.07.03
 MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
 
 # apt-get
+RUN pacman-key --populate archlinux && pacman-key --refresh-keys
 RUN pacman-db-upgrade && pacman -Syu --noconfirm base-devel git
 
 # Install Go 1.4

src/Dockerfile.ubuntu

@@ -3,7 +3,7 @@ MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
 
 # apt-get
 RUN apt-get update && apt-get -y upgrade && \
-    apt-get install -y --force-yes git curl build-essential libncurses-dev
+    apt-get install -y --force-yes git curl build-essential libncurses-dev libgpm-dev
 
 # Install Go 1.4
 RUN cd / && curl \

src/Makefile

@@ -5,8 +5,19 @@ endif
 UNAME_S := $(shell uname -s)
 ifeq ($(UNAME_S),Darwin)
 	GOOS := darwin
+	LDFLAGS :=
+ifdef STATIC
+$(error Static linking not possible on OS X)
+endif
 else ifeq ($(UNAME_S),Linux)
 	GOOS := linux
+ifdef STATIC
+	SUFFIX := -static
+	LDFLAGS := --ldflags '-extldflags "-static -ltinfo -lgpm"'
+else
+	SUFFIX :=
+	LDFLAGS :=
+endif
 endif
 
 ifneq ($(shell uname -m),x86_64)
@@ -16,21 +27,24 @@ endif
 SOURCES   := $(wildcard *.go */*.go)
 BINDIR    := ../bin
 
-BINARY32  := fzf-$(GOOS)_386
+BINARY32  := fzf-$(GOOS)_386$(SUFFIX)
-BINARY64  := fzf-$(GOOS)_amd64
+BINARY64  := fzf-$(GOOS)_amd64$(SUFFIX)
 VERSION    = $(shell fzf/$(BINARY64) --version)
-RELEASE32  = fzf-$(VERSION)-$(GOOS)_386
+RELEASE32  = fzf-$(VERSION)-$(GOOS)_386$(SUFFIX)
-RELEASE64  = fzf-$(VERSION)-$(GOOS)_amd64
+RELEASE64  = fzf-$(VERSION)-$(GOOS)_amd64$(SUFFIX)
 
 all: release
 
 release: build
-	cd fzf && \
+	-cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
-	cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32) && \
+	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
-	cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
+	rm -f $(RELEASE32) $(RELEASE64)
-	rm $(RELEASE32) $(RELEASE64)
 
+ifndef STATIC
 build: test fzf/$(BINARY32) fzf/$(BINARY64)
+else
+build: test fzf/$(BINARY64)
+endif
 
 test:
 	go get
@@ -42,13 +56,13 @@ uninstall:
 	rm -f $(BINDIR)/fzf $(BINDIR)/$(BINARY64)
 
 clean:
-	cd fzf && rm -f $(BINARY32) $(BINARY64) $(RELEASE32).tgz $(RELEASE64).tgz
+	cd fzf && rm -f fzf-*
 
 fzf/$(BINARY32): $(SOURCES)
 	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -o $(BINARY32)
 
 fzf/$(BINARY64): $(SOURCES)
-	cd fzf && go build -o $(BINARY64)
+	cd fzf && go build $(LDFLAGS) -o $(BINARY64)
 
 $(BINDIR)/fzf: fzf/$(BINARY64) | $(BINDIR)
 	cp -f fzf/$(BINARY64) $(BINDIR)
@@ -57,18 +71,27 @@ $(BINDIR)/fzf: fzf/$(BINARY64) | $(BINDIR)
 $(BINDIR):
 	mkdir -p $@
 
-# Linux distribution to build fzf on
+docker-arch:
-DISTRO := arch
+	docker build -t junegunn/arch-sandbox - < Dockerfile.arch
 
-docker:
+docker-ubuntu:
-	docker build -t junegunn/$(DISTRO)-sandbox - < Dockerfile.$(DISTRO)
+	docker build -t junegunn/ubuntu-sandbox - < Dockerfile.ubuntu
 
-linux: docker
+arch: docker-arch
-	docker run -i -t -v $(GOPATH):/go junegunn/$(DISTRO)-sandbox \
+	docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
-		/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make'
-
-$(DISTRO): docker
-	docker run -i -t -v $(GOPATH):/go junegunn/$(DISTRO)-sandbox \
 		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
 
-.PHONY: all build release test install uninstall clean docker linux $(DISTRO)
+ubuntu: docker-ubuntu
+	docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
+		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
+
+linux: docker-arch
+	docker run -i -t -v $(GOPATH):/go junegunn/arch-sandbox \
+		/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make'
+
+linux-static: docker-ubuntu
+	docker run -i -t -v $(GOPATH):/go junegunn/ubuntu-sandbox \
+		/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make STATIC=1'
+
+.PHONY: all build release test install uninstall clean docker \
+	linux linux-static arch ubuntu docker-arch docker-ubuntu

src/algo/algo.go

@@ -15,8 +15,15 @@ import (
  * In short: They try to do as little work as possible.
  */
 
+func runeAt(runes []rune, index int, max int, forward bool) rune {
+	if forward {
+		return runes[index]
+	}
+	return runes[max-index-1]
+}
+
 // FuzzyMatch performs fuzzy-match
-func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+func FuzzyMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
 	if len(pattern) == 0 {
 		return 0, 0
 	}
@@ -34,7 +41,11 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 	sidx := -1
 	eidx := -1
 
-	for index, char := range runes {
+	lenRunes := len(runes)
+	lenPattern := len(pattern)
+
+	for index := range runes {
+		char := runeAt(runes, index, lenRunes, forward)
 		// This is considerably faster than blindly applying strings.ToLower to the
 		// whole string
 		if !caseSensitive {
@@ -47,11 +58,12 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 				char = unicode.To(unicode.LowerCase, char)
 			}
 		}
-		if char == pattern[pidx] {
+		pchar := runeAt(pattern, pidx, lenPattern, forward)
+		if char == pchar {
 			if sidx < 0 {
 				sidx = index
 			}
-			if pidx++; pidx == len(pattern) {
+			if pidx++; pidx == lenPattern {
 				eidx = index + 1
 				break
 			}
@@ -61,7 +73,7 @@ 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 := runeAt(runes, index, lenRunes, forward)
 			if !caseSensitive {
 				if char >= 'A' && char <= 'Z' {
 					char += 32
@@ -69,14 +81,19 @@ func FuzzyMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
 					char = unicode.To(unicode.LowerCase, char)
 				}
 			}
-			if char == pattern[pidx] {
+
+			pchar := runeAt(pattern, pidx, lenPattern, forward)
+			if char == pchar {
 				if pidx--; pidx < 0 {
 					sidx = index
 					break
 				}
 			}
 		}
-		return sidx, eidx
+		if forward {
+			return sidx, eidx
+		}
+		return lenRunes - eidx, lenRunes - sidx
 	}
 	return -1, -1
 }
@@ -88,20 +105,21 @@ 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, forward bool, runes []rune, pattern []rune) (int, int) {
 	if len(pattern) == 0 {
 		return 0, 0
 	}
 
-	numRunes := len(runes)
+	lenRunes := len(runes)
-	plen := len(pattern)
+	lenPattern := len(pattern)
-	if numRunes < plen {
+
+	if lenRunes < lenPattern {
 		return -1, -1
 	}
 
 	pidx := 0
-	for index := 0; index < numRunes; index++ {
+	for index := 0; index < lenRunes; index++ {
-		char := runes[index]
+		char := runeAt(runes, index, lenRunes, forward)
 		if !caseSensitive {
 			if char >= 'A' && char <= 'Z' {
 				char += 32
@@ -109,10 +127,14 @@ func ExactMatchNaive(caseSensitive bool, runes []rune, pattern []rune) (int, int
 				char = unicode.To(unicode.LowerCase, char)
 			}
 		}
-		if pattern[pidx] == char {
+		pchar := runeAt(pattern, pidx, lenPattern, forward)
+		if pchar == char {
 			pidx++
-			if pidx == plen {
+			if pidx == lenPattern {
-				return index - plen + 1, index + 1
+				if forward {
+					return index - lenPattern + 1, index + 1
+				}
+				return lenRunes - (index + 1), lenRunes - (index - lenPattern + 1)
 			}
 		} else {
 			index -= pidx
@@ -123,7 +145,7 @@ func ExactMatchNaive(caseSensitive bool, runes []rune, pattern []rune) (int, int
 }
 
 // PrefixMatch performs prefix-match
-func PrefixMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+func PrefixMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
 	if len(runes) < len(pattern) {
 		return -1, -1
 	}
@@ -141,7 +163,7 @@ 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, forward bool, input []rune, pattern []rune) (int, int) {
 	runes := util.TrimRight(input)
 	trimmedLen := len(runes)
 	diff := trimmedLen - len(pattern)
@@ -162,7 +184,7 @@ func SuffixMatch(caseSensitive bool, input []rune, pattern []rune) (int, int) {
 }
 
 // EqualMatch performs equal-match
-func EqualMatch(caseSensitive bool, runes []rune, pattern []rune) (int, int) {
+func EqualMatch(caseSensitive bool, forward bool, runes []rune, pattern []rune) (int, int) {
 	if len(runes) != len(pattern) {
 		return -1, -1
 	}

src/algo/algo_test.go

@@ -5,11 +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, bool, []rune, []rune) (int, int), caseSensitive bool, forward bool, input string, pattern string, sidx int, eidx int) {
 	if !caseSensitive {
 		pattern = strings.ToLower(pattern)
 	}
-	s, e := fun(caseSensitive, []rune(input), []rune(pattern))
+	s, e := fun(caseSensitive, forward, []rune(input), []rune(pattern))
 	if s != sidx {
 		t.Errorf("Invalid start index: %d (expected: %d, %s / %s)", s, sidx, input, pattern)
 	}
@@ -19,33 +19,51 @@ func assertMatch(t *testing.T, fun func(bool, []rune, []rune) (int, int), caseSe
 }
 
 func TestFuzzyMatch(t *testing.T) {
-	assertMatch(t, FuzzyMatch, false, "fooBarbaz", "oBZ", 2, 9)
+	assertMatch(t, FuzzyMatch, false, true, "fooBarbaz", "oBZ", 2, 9)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "oBZ", -1, -1)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBZ", -1, -1)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "oBz", 2, 9)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBz", 2, 9)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "fooBarbazz", -1, -1)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "fooBarbazz", -1, -1)
+}
+
+func TestFuzzyMatchBackward(t *testing.T) {
+	assertMatch(t, FuzzyMatch, false, true, "foobar fb", "fb", 0, 4)
+	assertMatch(t, FuzzyMatch, false, false, "foobar fb", "fb", 7, 9)
 }
 
 func TestExactMatchNaive(t *testing.T) {
-	assertMatch(t, ExactMatchNaive, false, "fooBarbaz", "oBA", 2, 5)
+	for _, dir := range []bool{true, false} {
-	assertMatch(t, ExactMatchNaive, true, "fooBarbaz", "oBA", -1, -1)
+		assertMatch(t, ExactMatchNaive, false, dir, "fooBarbaz", "oBA", 2, 5)
-	assertMatch(t, ExactMatchNaive, true, "fooBarbaz", "fooBarbazz", -1, -1)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "oBA", -1, -1)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "fooBarbazz", -1, -1)
+	}
+}
+
+func TestExactMatchNaiveBackward(t *testing.T) {
+	assertMatch(t, FuzzyMatch, false, true, "foobar foob", "oo", 1, 3)
+	assertMatch(t, FuzzyMatch, false, false, "foobar foob", "oo", 8, 10)
 }
 
 func TestPrefixMatch(t *testing.T) {
-	assertMatch(t, PrefixMatch, false, "fooBarbaz", "Foo", 0, 3)
+	for _, dir := range []bool{true, false} {
-	assertMatch(t, PrefixMatch, true, "fooBarbaz", "Foo", -1, -1)
+		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3)
-	assertMatch(t, PrefixMatch, false, "fooBarbaz", "baz", -1, -1)
+		assertMatch(t, PrefixMatch, true, dir, "fooBarbaz", "Foo", -1, -1)
+		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "baz", -1, -1)
+	}
 }
 
 func TestSuffixMatch(t *testing.T) {
-	assertMatch(t, SuffixMatch, false, "fooBarbaz", "Foo", -1, -1)
+	for _, dir := range []bool{true, false} {
-	assertMatch(t, SuffixMatch, false, "fooBarbaz", "baz", 6, 9)
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "Foo", -1, -1)
-	assertMatch(t, SuffixMatch, true, "fooBarbaz", "Baz", -1, -1)
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "baz", 6, 9)
+		assertMatch(t, SuffixMatch, true, dir, "fooBarbaz", "Baz", -1, -1)
+	}
 }
 
 func TestEmptyPattern(t *testing.T) {
-	assertMatch(t, FuzzyMatch, true, "foobar", "", 0, 0)
+	for _, dir := range []bool{true, false} {
-	assertMatch(t, ExactMatchNaive, true, "foobar", "", 0, 0)
+		assertMatch(t, FuzzyMatch, true, dir, "foobar", "", 0, 0)
-	assertMatch(t, PrefixMatch, true, "foobar", "", 0, 0)
+		assertMatch(t, ExactMatchNaive, true, dir, "foobar", "", 0, 0)
-	assertMatch(t, SuffixMatch, true, "foobar", "", 6, 6)
+		assertMatch(t, PrefixMatch, true, dir, "foobar", "", 0, 0)
+		assertMatch(t, SuffixMatch, true, dir, "foobar", "", 6, 6)
+	}
 }

src/constants.go

@@ -8,7 +8,7 @@ import (
 
 const (
 	// Current version
-	version = "0.10.2"
+	version = "0.10.5"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond

src/core.go

@@ -143,7 +143,8 @@ func Run(opts *Options) {
 	// Matcher
 	patternBuilder := func(runes []rune) *Pattern {
 		return BuildPattern(
-			opts.Mode, opts.Case, opts.Nth, opts.Delimiter, runes)
+			opts.Mode, opts.Case, opts.Tiebreak != byEnd,
+			opts.Nth, opts.Delimiter, runes)
 	}
 	matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox)
 
@@ -174,7 +175,7 @@ func Run(opts *Options) {
 				chunks:  snapshot,
 				pattern: pattern})
 			for i := 0; i < merger.Length(); i++ {
-				fmt.Println(merger.Get(i).AsString())
+				fmt.Println(merger.Get(i).AsString(opts.Ansi))
 			}
 		}
 		os.Exit(0)
@@ -250,7 +251,7 @@ func Run(opts *Options) {
 										fmt.Println()
 									}
 									for i := 0; i < count; i++ {
-										fmt.Println(val.Get(i).AsString())
+										fmt.Println(val.Get(i).AsString(opts.Ansi))
 									}
 									os.Exit(0)
 								}

src/item.go

@@ -94,17 +94,21 @@ func (item *Item) Rank(cache bool) Rank {
 }
 
 // AsString returns the original string
-func (item *Item) AsString() string {
+func (item *Item) AsString(stripAnsi bool) string {
-	return *item.StringPtr()
+	return *item.StringPtr(stripAnsi)
 }
 
 // StringPtr returns the pointer to the original string
-func (item *Item) StringPtr() *string {
+func (item *Item) StringPtr(stripAnsi bool) *string {
-	runes := item.text
 	if item.origText != nil {
-		runes = *item.origText
+		if stripAnsi {
+			trimmed, _, _ := extractColor(string(*item.origText), nil)
+			return &trimmed
+		}
+		orig := string(*item.origText)
+		return &orig
 	}
-	str := string(runes)
+	str := string(item.text)
 	return &str
 }
 

src/options.go

@@ -1,7 +1,6 @@
 package fzf
 
 import (
-	"fmt"
 	"io/ioutil"
 	"os"
 	"regexp"
@@ -104,7 +103,7 @@ type Options struct {
 	Case        Case
 	Nth         []Range
 	WithNth     []Range
-	Delimiter   *regexp.Regexp
+	Delimiter   Delimiter
 	Sort        int
 	Tac         bool
 	Tiebreak    tiebreak
@@ -149,7 +148,7 @@ func defaultOptions() *Options {
 		Case:        CaseSmart,
 		Nth:         make([]Range, 0),
 		WithNth:     make([]Range, 0),
-		Delimiter:   nil,
+		Delimiter:   Delimiter{},
 		Sort:        1000,
 		Tac:         false,
 		Tiebreak:    byLength,
@@ -268,17 +267,23 @@ func splitNth(str string) []Range {
 	return ranges
 }
 
-func delimiterRegexp(str string) *regexp.Regexp {
+func delimiterRegexp(str string) Delimiter {
-	rx, e := regexp.Compile(str)
+	// Special handling of \t
-	if e != nil {
+	str = strings.Replace(str, "\\t", "\t", -1)
-		str = regexp.QuoteMeta(str)
+
+	// 1. Pattern does not contain any special character
+	if regexp.QuoteMeta(str) == str {
+		return Delimiter{str: &str}
 	}
 
-	rx, e = regexp.Compile(fmt.Sprintf("(?:.*?%s)|(?:.+?$)", str))
+	rx, e := regexp.Compile(str)
+	// 2. Pattern is not a valid regular expression
 	if e != nil {
-		errorExit("invalid regular expression: " + e.Error())
+		return Delimiter{str: &str}
 	}
-	return rx
+
+	// 3. Pattern as regular expression. Slow.
+	return Delimiter{regex: rx}
 }
 
 func isAlphabet(char uint8) bool {

src/options_test.go

@@ -8,11 +8,59 @@ import (
 )
 
 func TestDelimiterRegex(t *testing.T) {
-	rx := delimiterRegexp("*")
+	// Valid regex
-	tokens := rx.FindAllString("-*--*---**---", -1)
+	delim := delimiterRegexp(".")
-	if tokens[0] != "-*" || tokens[1] != "--*" || tokens[2] != "---*" ||
+	if delim.regex == nil || delim.str != nil {
-		tokens[3] != "*" || tokens[4] != "---" {
+		t.Error(delim)
-		t.Errorf("%s %s %d", rx, tokens, len(tokens))
+	}
+	// Broken regex -> string
+	delim = delimiterRegexp("[0-9")
+	if delim.regex != nil || *delim.str != "[0-9" {
+		t.Error(delim)
+	}
+	// Valid regex
+	delim = delimiterRegexp("[0-9]")
+	if delim.regex.String() != "[0-9]" || delim.str != nil {
+		t.Error(delim)
+	}
+	// Tab character
+	delim = delimiterRegexp("\t")
+	if delim.regex != nil || *delim.str != "\t" {
+		t.Error(delim)
+	}
+	// Tab expression
+	delim = delimiterRegexp("\\t")
+	if delim.regex != nil || *delim.str != "\t" {
+		t.Error(delim)
+	}
+	// Tabs -> regex
+	delim = delimiterRegexp("\t+")
+	if delim.regex == nil || delim.str != nil {
+		t.Error(delim)
+	}
+}
+
+func TestDelimiterRegexString(t *testing.T) {
+	delim := delimiterRegexp("*")
+	tokens := Tokenize([]rune("-*--*---**---"), delim)
+	if delim.regex != nil ||
+		string(tokens[0].text) != "-*" ||
+		string(tokens[1].text) != "--*" ||
+		string(tokens[2].text) != "---*" ||
+		string(tokens[3].text) != "*" ||
+		string(tokens[4].text) != "---" {
+		t.Errorf("%s %s %d", delim, tokens, len(tokens))
+	}
+}
+
+func TestDelimiterRegexRegex(t *testing.T) {
+	delim := delimiterRegexp("--\\*")
+	tokens := Tokenize([]rune("-*--*---**---"), delim)
+	if delim.str != nil ||
+		string(tokens[0].text) != "-*--*" ||
+		string(tokens[1].text) != "---*" ||
+		string(tokens[2].text) != "*---" {
+		t.Errorf("%s %d", tokens, len(tokens))
 	}
 }
 

src/pattern.go

@@ -39,12 +39,13 @@ type term struct {
 type Pattern struct {
 	mode          Mode
 	caseSensitive bool
+	forward       bool
 	text          []rune
 	terms         []term
 	hasInvTerm    bool
-	delimiter     *regexp.Regexp
+	delimiter     Delimiter
 	nth           []Range
-	procFun       map[termType]func(bool, []rune, []rune) (int, int)
+	procFun       map[termType]func(bool, bool, []rune, []rune) (int, int)
 }
 
 var (
@@ -70,8 +71,8 @@ func clearChunkCache() {
 }
 
 // BuildPattern builds Pattern object from the given arguments
-func BuildPattern(mode Mode, caseMode Case,
+func BuildPattern(mode Mode, caseMode Case, forward bool,
-	nth []Range, delimiter *regexp.Regexp, runes []rune) *Pattern {
+	nth []Range, delimiter Delimiter, runes []rune) *Pattern {
 
 	var asString string
 	switch mode {
@@ -109,12 +110,13 @@ func BuildPattern(mode Mode, caseMode Case,
 	ptr := &Pattern{
 		mode:          mode,
 		caseSensitive: caseSensitive,
+		forward:       forward,
 		text:          []rune(asString),
 		terms:         terms,
 		hasInvTerm:    hasInvTerm,
 		nth:           nth,
 		delimiter:     delimiter,
-		procFun:       make(map[termType]func(bool, []rune, []rune) (int, int))}
+		procFun:       make(map[termType]func(bool, bool, []rune, []rune) (int, int))}
 
 	ptr.procFun[termFuzzy] = algo.FuzzyMatch
 	ptr.procFun[termEqual] = algo.EqualMatch
@@ -151,6 +153,9 @@ func parseTerms(mode Mode, caseMode Case, str string) []term {
 			if mode == ModeExtended {
 				typ = termExact
 				text = text[1:]
+			} else if mode == ModeExtendedExact {
+				typ = termFuzzy
+				text = text[1:]
 			}
 		} else if strings.HasPrefix(text, "^") {
 			if strings.HasSuffix(text, "$") {
@@ -285,7 +290,7 @@ func dupItem(item *Item, offsets []Offset) *Item {
 
 func (p *Pattern) fuzzyMatch(item *Item) (int, int) {
 	input := p.prepareInput(item)
-	return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.text)
+	return p.iter(algo.FuzzyMatch, input, p.caseSensitive, p.forward, p.text)
 }
 
 func (p *Pattern) extendedMatch(item *Item) []Offset {
@@ -293,7 +298,7 @@ func (p *Pattern) extendedMatch(item *Item) []Offset {
 	offsets := []Offset{}
 	for _, term := range p.terms {
 		pfun := p.procFun[term.typ]
-		if sidx, eidx := p.iter(pfun, input, term.caseSensitive, term.text); sidx >= 0 {
+		if sidx, eidx := p.iter(pfun, input, term.caseSensitive, p.forward, term.text); sidx >= 0 {
 			if term.inv {
 				break
 			}
@@ -321,11 +326,11 @@ func (p *Pattern) prepareInput(item *Item) []Token {
 	return ret
 }
 
-func (p *Pattern) iter(pfun func(bool, []rune, []rune) (int, int),
+func (p *Pattern) iter(pfun func(bool, bool, []rune, []rune) (int, int),
-	tokens []Token, caseSensitive bool, pattern []rune) (int, int) {
+	tokens []Token, caseSensitive bool, forward bool, pattern []rune) (int, int) {
 	for _, part := range tokens {
 		prefixLength := part.prefixLength
-		if sidx, eidx := pfun(caseSensitive, part.text, pattern); sidx >= 0 {
+		if sidx, eidx := pfun(caseSensitive, forward, part.text, pattern); sidx >= 0 {
 			return sidx + prefixLength, eidx + prefixLength
 		}
 	}

src/pattern_test.go

@@ -37,11 +37,11 @@ func TestParseTermsExtendedExact(t *testing.T) {
 		"aaa 'bbb ^ccc ddd$ !eee !'fff !^ggg !hhh$")
 	if len(terms) != 8 ||
 		terms[0].typ != termExact || terms[0].inv || len(terms[0].text) != 3 ||
-		terms[1].typ != termExact || terms[1].inv || len(terms[1].text) != 4 ||
+		terms[1].typ != termFuzzy || terms[1].inv || len(terms[1].text) != 3 ||
 		terms[2].typ != termPrefix || terms[2].inv || len(terms[2].text) != 3 ||
 		terms[3].typ != termSuffix || terms[3].inv || len(terms[3].text) != 3 ||
 		terms[4].typ != termExact || !terms[4].inv || len(terms[4].text) != 3 ||
-		terms[5].typ != termExact || !terms[5].inv || len(terms[5].text) != 4 ||
+		terms[5].typ != termFuzzy || !terms[5].inv || len(terms[5].text) != 3 ||
 		terms[6].typ != termPrefix || !terms[6].inv || len(terms[6].text) != 3 ||
 		terms[7].typ != termSuffix || !terms[7].inv || len(terms[7].text) != 3 {
 		t.Errorf("%s", terms)
@@ -58,10 +58,10 @@ func TestParseTermsEmpty(t *testing.T) {
 func TestExact(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart,
+	pattern := BuildPattern(ModeExtended, CaseSmart, true,
-		[]Range{}, nil, []rune("'abc"))
+		[]Range{}, Delimiter{}, []rune("'abc"))
 	sidx, eidx := algo.ExactMatchNaive(
-		pattern.caseSensitive, []rune("aabbcc abc"), pattern.terms[0].text)
+		pattern.caseSensitive, pattern.forward, []rune("aabbcc abc"), pattern.terms[0].text)
 	if sidx != 7 || eidx != 10 {
 		t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
 	}
@@ -70,11 +70,11 @@ func TestExact(t *testing.T) {
 func TestEqual(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, nil, []rune("^AbC$"))
+	pattern := BuildPattern(ModeExtended, CaseSmart, true, []Range{}, Delimiter{}, []rune("^AbC$"))
 
 	match := func(str string, sidxExpected int, eidxExpected int) {
 		sidx, eidx := algo.EqualMatch(
-			pattern.caseSensitive, []rune(str), pattern.terms[0].text)
+			pattern.caseSensitive, pattern.forward, []rune(str), pattern.terms[0].text)
 		if sidx != sidxExpected || eidx != eidxExpected {
 			t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
 		}
@@ -86,17 +86,17 @@ func TestEqual(t *testing.T) {
 func TestCaseSensitivity(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pat1 := BuildPattern(ModeFuzzy, CaseSmart, []Range{}, nil, []rune("abc"))
+	pat1 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat2 := BuildPattern(ModeFuzzy, CaseSmart, []Range{}, nil, []rune("Abc"))
+	pat2 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat3 := BuildPattern(ModeFuzzy, CaseIgnore, []Range{}, nil, []rune("abc"))
+	pat3 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat4 := BuildPattern(ModeFuzzy, CaseIgnore, []Range{}, nil, []rune("Abc"))
+	pat4 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat5 := BuildPattern(ModeFuzzy, CaseRespect, []Range{}, nil, []rune("abc"))
+	pat5 := BuildPattern(ModeFuzzy, CaseRespect, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat6 := BuildPattern(ModeFuzzy, CaseRespect, []Range{}, nil, []rune("Abc"))
+	pat6 := BuildPattern(ModeFuzzy, CaseRespect, true, []Range{}, Delimiter{}, []rune("Abc"))
 
 	if string(pat1.text) != "abc" || pat1.caseSensitive != false ||
 		string(pat2.text) != "Abc" || pat2.caseSensitive != true ||
@@ -109,8 +109,8 @@ func TestCaseSensitivity(t *testing.T) {
 }
 
 func TestOrigTextAndTransformed(t *testing.T) {
-	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, nil, []rune("jg"))
+	pattern := BuildPattern(ModeExtended, CaseSmart, true, []Range{}, Delimiter{}, []rune("jg"))
-	tokens := Tokenize([]rune("junegunn"), nil)
+	tokens := Tokenize([]rune("junegunn"), Delimiter{})
 	trans := Transform(tokens, []Range{Range{1, 1}})
 
 	origRunes := []rune("junegunn.choi")

src/terminal.go

@@ -42,6 +42,7 @@ type Terminal struct {
 	history    *History
 	cycle      bool
 	header     []string
+	ansi       bool
 	margin     [4]string
 	marginInt  [4]int
 	count      int
@@ -207,6 +208,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		marginInt:  [4]int{0, 0, 0, 0},
 		cycle:      opts.Cycle,
 		header:     opts.Header,
+		ansi:       opts.Ansi,
 		reading:    true,
 		merger:     EmptyMerger,
 		selected:   make(map[uint32]selectedItem),
@@ -288,7 +290,7 @@ func (t *Terminal) output() {
 	if len(t.selected) == 0 {
 		cnt := t.merger.Length()
 		if cnt > 0 && cnt > t.cy {
-			fmt.Println(t.merger.Get(t.cy).AsString())
+			fmt.Println(t.merger.Get(t.cy).AsString(t.ansi))
 		}
 	} else {
 		sels := make([]selectedItem, 0, len(t.selected))
@@ -805,7 +807,7 @@ 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()}
+				t.selected[item.index] = selectedItem{time.Now(), item.StringPtr(t.ansi)}
 				return true
 			}
 			return false
@@ -843,7 +845,7 @@ func (t *Terminal) Loop() {
 		case actExecute:
 			if t.cy >= 0 && t.cy < t.merger.Length() {
 				item := t.merger.Get(t.cy)
-				executeCommand(t.execmap[mapkey], item.AsString())
+				executeCommand(t.execmap[mapkey], item.AsString(t.ansi))
 			}
 		case actInvalid:
 			t.mutex.Unlock()

src/tokenizer.go

@@ -22,6 +22,12 @@ type Token struct {
 	prefixLength int
 }
 
+// Delimiter for tokenizing the input
+type Delimiter struct {
+	regex *regexp.Regexp
+	str   *string
+}
+
 func newRange(begin int, end int) Range {
 	if begin == 1 {
 		begin = rangeEllipsis
@@ -68,15 +74,15 @@ func ParseRange(str *string) (Range, bool) {
 	return newRange(n, n), true
 }
 
-func withPrefixLengths(tokens []string, begin int) []Token {
+func withPrefixLengths(tokens [][]rune, begin int) []Token {
 	ret := make([]Token, len(tokens))
 
 	prefixLength := begin
 	for idx, token := range tokens {
 		// Need to define a new local variable instead of the reused token to take
 		// the pointer to it
-		ret[idx] = Token{text: []rune(token), prefixLength: prefixLength}
+		ret[idx] = Token{text: token, prefixLength: prefixLength}
-		prefixLength += len([]rune(token))
+		prefixLength += len(token)
 	}
 	return ret
 }
@@ -87,9 +93,9 @@ const (
 	awkWhite
 )
 
-func awkTokenizer(input []rune) ([]string, int) {
+func awkTokenizer(input []rune) ([][]rune, int) {
 	// 9, 32
-	ret := []string{}
+	ret := [][]rune{}
 	str := []rune{}
 	prefixLength := 0
 	state := awkNil
@@ -112,27 +118,49 @@ func awkTokenizer(input []rune) ([]string, int) {
 			if white {
 				str = append(str, r)
 			} else {
-				ret = append(ret, string(str))
+				ret = append(ret, str)
 				state = awkBlack
 				str = []rune{r}
 			}
 		}
 	}
 	if len(str) > 0 {
-		ret = append(ret, string(str))
+		ret = append(ret, str)
 	}
 	return ret, prefixLength
 }
 
 // Tokenize tokenizes the given string with the delimiter
-func Tokenize(runes []rune, delimiter *regexp.Regexp) []Token {
+func Tokenize(runes []rune, delimiter Delimiter) []Token {
-	if delimiter == nil {
+	if delimiter.str == nil && delimiter.regex == nil {
 		// AWK-style (\S+\s*)
 		tokens, prefixLength := awkTokenizer(runes)
 		return withPrefixLengths(tokens, prefixLength)
 	}
-	tokens := delimiter.FindAllString(string(runes), -1)
+
-	return withPrefixLengths(tokens, 0)
+	var tokens []string
+	if delimiter.str != nil {
+		tokens = strings.Split(string(runes), *delimiter.str)
+		for i := 0; i < len(tokens)-1; i++ {
+			tokens[i] = tokens[i] + *delimiter.str
+		}
+	} else if delimiter.regex != nil {
+		str := string(runes)
+		for len(str) > 0 {
+			loc := delimiter.regex.FindStringIndex(str)
+			if loc == nil {
+				loc = []int{0, len(str)}
+			}
+			last := util.Max(loc[1], 1)
+			tokens = append(tokens, str[:last])
+			str = str[last:]
+		}
+	}
+	asRunes := make([][]rune, len(tokens))
+	for i, token := range tokens {
+		asRunes[i] = []rune(token)
+	}
+	return withPrefixLengths(asRunes, 0)
 }
 
 func joinTokens(tokens []Token) []rune {

src/tokenizer_test.go

@@ -43,7 +43,7 @@ func TestParseRange(t *testing.T) {
 func TestTokenize(t *testing.T) {
 	// AWK-style
 	input := "  abc:  def:  ghi  "
-	tokens := Tokenize([]rune(input), nil)
+	tokens := Tokenize([]rune(input), Delimiter{})
 	if string(tokens[0].text) != "abc:  " || tokens[0].prefixLength != 2 {
 		t.Errorf("%s", tokens)
 	}
@@ -53,12 +53,21 @@ func TestTokenize(t *testing.T) {
 	if string(tokens[0].text) != "  abc:" || tokens[0].prefixLength != 0 {
 		t.Errorf("%s", tokens)
 	}
+
+	// With delimiter regex
+	tokens = Tokenize([]rune(input), delimiterRegexp("\\s+"))
+	if string(tokens[0].text) != "  " || tokens[0].prefixLength != 0 ||
+		string(tokens[1].text) != "abc:  " || tokens[1].prefixLength != 2 ||
+		string(tokens[2].text) != "def:  " || tokens[2].prefixLength != 8 ||
+		string(tokens[3].text) != "ghi  " || tokens[3].prefixLength != 14 {
+		t.Errorf("%s", tokens)
+	}
 }
 
 func TestTransform(t *testing.T) {
 	input := "  abc:  def:  ghi:  jkl"
 	{
-		tokens := Tokenize([]rune(input), nil)
+		tokens := Tokenize([]rune(input), Delimiter{})
 		{
 			ranges := splitNth("1,2,3")
 			tx := Transform(tokens, ranges)

test/test_go.rb

@@ -527,6 +527,17 @@ class TestGoFZF < TestBase
     assert_equal output, `cat #{tempname} | #{FZF} -fh -n2 -d:`.split($/)
   end
 
+  def test_tiebreak_end_backward_scan
+    input = %w[
+      foobar-fb
+      fubar
+    ]
+    writelines tempname, input
+
+    assert_equal input.reverse, `cat #{tempname} | #{FZF} -f fb`.split($/)
+    assert_equal input, `cat #{tempname} | #{FZF} -f fb --tiebreak=end`.split($/)
+  end
+
   def test_invalid_cache
     tmux.send_keys "(echo d; echo D; echo x) | #{fzf '-q d'}", :Enter
     tmux.until { |lines| lines[-2].include? '2/3' }
@@ -774,6 +785,22 @@ class TestGoFZF < TestBase
     tmux.until { |lines| lines.any? { |l| l.include? 'Invalid $TERM: xxx' } }
   end
 
+  def test_with_nth
+    writelines tempname, ['hello world ', 'byebye']
+    assert_equal 'hello world ', `cat #{tempname} | #{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1`.chomp
+  end
+
+  def test_with_nth_ansi
+    writelines tempname, ["\x1b[33mhello \x1b[34;1mworld\x1b[m ", 'byebye']
+    assert_equal 'hello world ', `cat #{tempname} | #{FZF} -f"^he hehe" -x -n 2.. --with-nth 2,1,1 --ansi`.chomp
+  end
+
+  def test_with_nth_no_ansi
+    src = "\x1b[33mhello \x1b[34;1mworld\x1b[m "
+    writelines tempname, [src, 'byebye']
+    assert_equal src, `cat #{tempname} | #{FZF} -fhehe -x -n 2.. --with-nth 2,1,1 --no-ansi`.chomp
+  end
+
 private
   def writelines path, lines
     File.unlink path while File.exists? path