[install] Terminate install script when failed to update shell config

Close #354

.travis.yml

@@ -4,7 +4,7 @@ rvm:
 
 install:
 - sudo apt-get update
-- sudo apt-get install -y libncurses-dev lib32ncurses5-dev
+- sudo apt-get install -y libncurses-dev lib32ncurses5-dev libgpm-dev
 - sudo add-apt-repository -y ppa:pi-rho/dev
 - sudo apt-add-repository -y ppa:fish-shell/release-2
 - sudo apt-get update

CHANGELOG.md

@@ -1,6 +1,25 @@
 CHANGELOG
 =========
 
+0.10.6
+------
+
+- Replaced `--header-file` with `--header` option
+- `--header` and `--header-lines` can be used together
+- Changed exit status
+    - 0: Okay
+    - 1: No match
+    - 2: Error
+    - 130: Interrupted
+- 64-bit linux binary is statically-linked with ncurses to avoid
+  compatibility issues.
+
+0.10.5
+------
+
+- `'`-prefix to unquote the term in `--extended-exact` mode
+- Backward scan when `--tiebreak=end` is set
+
 0.10.4
 ------
 

README.md

@@ -1,4 +1,4 @@
-<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf.png" height="170" alt="fzf - a command-line fuzzy finder"> [![travis-ci](https://travis-ci.org/junegunn/fzf.svg?branch=master)](https://travis-ci.org/junegunn/fzf) <a href="http://flattr.com/thing/3115381/junegunnfzf-on-GitHub" target="_blank"><img src="http://api.flattr.com/button/flattr-badge-large.png" alt="Flattr this" title="Flattr this" border="0" /></a>
+<img src="https://raw.githubusercontent.com/junegunn/i/master/fzf.png" height="170" alt="fzf - a command-line fuzzy finder"> [![travis-ci](https://travis-ci.org/junegunn/fzf.svg?branch=master)](https://travis-ci.org/junegunn/fzf)
 ===
 
 fzf is a general-purpose command-line fuzzy finder.
@@ -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
-fzf with `-e` or `--extended-exact` option.
+If you don't prefer fuzzy matching and do not wish to "quote" every word,
+start fzf with `-e` or `--extended-exact` option. Note that in
+`--extended-exact` mode, `'`-prefix "unquotes" the term.
 
 #### Environment variables
 

bin/fzf-tmux

@@ -102,7 +102,7 @@ trap cleanup EXIT SIGINT SIGTERM
 
 fail() {
   >&2 echo "$1"
-  exit 1
+  exit 2
 }
 fzf="$(which fzf 2> /dev/null)" || fzf="$(dirname "$0")/fzf"
 [ -x "$fzf" ] || fail "fzf executable not found"
@@ -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
@@ -132,5 +134,5 @@ else
   cat <&0 > $fifo1 &
 fi
 cat $fifo2
-[ "$(cat $fifo3)" = '0' ]
+exit "$(cat $fifo3)"
 

install

@@ -1,7 +1,7 @@
 #!/usr/bin/env bash
 
-[[ "$@" =~ --pre ]] && version=0.10.4 pre=1 ||
-                       version=0.10.4 pre=0
+[[ "$@" =~ --pre ]] && version=0.10.6 pre=1 ||
+                       version=0.10.6 pre=0
 
 cd $(dirname $BASH_SOURCE)
 fzf_base=$(pwd)
@@ -80,12 +80,7 @@ download() {
     return
   fi
 
-  chmod +x $1 && symlink $1 || return 1
-  if [[ $1 =~ linux_amd64$ ]]; then
-    check_binary || download $1-static
-  else
-    check_binary
-  fi
+  chmod +x $1 && symlink $1 && check_binary
 }
 
 # Try to download binary executable
@@ -250,6 +245,7 @@ EOF
 fi
 
 append_line() {
+  set -e
   echo "Update $2:"
   echo "  - $1"
   [ -f "$2" ] || touch "$2"
@@ -266,6 +262,7 @@ append_line() {
     echo "    + Added"
   fi
   echo
+  set +e
 }
 
 echo

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 0.10.4" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Sep 2015" "fzf 0.10.6" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -285,11 +285,11 @@ When enabled, \fBCTRL-N\fR and \fBCTRL-P\fR are automatically remapped to
 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.
+.BI "--header=" "STR"
+The given string will be printed as the sticky header. The lines are displayed
+in the given order from top to bottom regardless of \fB--reverse\fR option, and
+are not affected by \fB--with-nth\fR. ANSI color codes are processed even when
+\fB--ansi\fR is not set.
 .TP
 .BI "--header-lines=" "N"
 The first N lines of the input are treated as the sticky header. When
@@ -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
-"exact-match" (or "non-fuzzy") term. fzf will search for the exact occurrences
-of the string.
+A term that is prefixed by a single-quote character (\fB'\fR) is interpreted as
+an "exact-match" (or "non-fuzzy") term. fzf will search for the exact
+occurrences of the string.
 
 .SS Anchored-match
-A term can be prefixed by ^, or suffixed by $ to become an anchored-match term.
-Then fzf will search for the items that start with or end with the given
-string. An anchored-match term is also an exact-match term.
+A term can be prefixed by \fB^\fR, or suffixed by \fB$\fR to become an
+anchored-match term. Then fzf will search for the items that start with or end
+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
-from the result.
+If a term is prefixed by \fB!\fR, fzf will exclude the items that satisfy the
+term 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 \fB-e\fR or \fB--extended-exact\fR option
-(instead of \fB-x\fR or \fB--extended\fR).
+If you don't prefer fuzzy matching and do not wish to "quote" (prefixing with
+\fB'\fR) every word, start fzf with \fB-e\fR or \fB--extended-exact\fR option
+(instead of \fB-x\fR or \fB--extended\fR). Note that in \fB--extended-exact\fR
+mode, \fB'\fR-prefix "unquotes" the term.
 
 .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

@@ -40,9 +40,7 @@ function! s:fzf_exec()
           \ input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
       redraw
       echo
-      echohl WarningMsg
-      echo 'Downloading fzf binary. Please wait ...'
-      echohl None
+      call s:warn('Downloading fzf binary. Please wait ...')
       let s:installed = 1
       call system(s:install.' --bin')
       return s:fzf_exec()
@@ -98,14 +96,24 @@ function! s:upgrade(dict)
   return copy
 endfunction
 
+function! s:error(msg)
+  echohl ErrorMsg
+  echom a:msg
+  echohl None
+endfunction
+
+function! s:warn(msg)
+  echohl WarningMsg
+  echom a:msg
+  echohl None
+endfunction
+
 function! fzf#run(...) abort
 try
   let oshell = &shell
   set shell=sh
   if has('nvim') && bufexists('term://*:FZF')
-    echohl WarningMsg
-    echomsg 'FZF is already running!'
-    echohl None
+    call s:warn('FZF is already running!')
     return []
   endif
   let dict   = exists('a:1') ? s:upgrade(a:1) : {}
@@ -217,20 +225,20 @@ 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 !'.escape(command, '%#')
+  execute 'silent !'.command
   redraw!
   if v:shell_error
-    " Do not print error message on exit status 1
-    if v:shell_error > 1
-      echohl ErrorMsg
-      echo 'Error running ' . command
+    " Do not print error message on exit status 1 (no match) or 130 (interrupt)
+    if v:shell_error == 2
+      call s:error('Error running ' . command)
     endif
     return []
   else
@@ -247,6 +255,10 @@ function! s:execute_tmux(dict, command, temps)
 
   call system(command)
   redraw!
+  if v:shell_error == 2
+    call s:error('Error running ' . command)
+    return []
+  endif
   return s:callback(a:dict, a:temps)
 endfunction
 
@@ -308,6 +320,7 @@ function! s:execute_term(dict, command, temps)
   call s:pushd(a:dict)
 
   let fzf = { 'buf': bufnr('%'), 'dict': a:dict, 'temps': a:temps, 'name': 'FZF' }
+  let s:command = a:command
   function! fzf.on_exit(id, code)
     let pos = s:getpos()
     let inplace = pos == s:ppos " {'window': 'enew'}
@@ -321,9 +334,15 @@ function! s:execute_term(dict, command, temps)
         wincmd p
       endif
     endif
+
+    if a:code == 2
+      call s:error('Error running ' . s:command)
+      sleep
+      return
+    endif
+
     call s:pushd(self.dict)
     try
-      redraw!
       call s:callback(self.dict, self.temps)
 
       if inplace && bufnr('') == self.buf

shell/completion.bash

@@ -49,7 +49,7 @@ _fzf_opts_completion() {
     --cycle
     --history
     --history-size
-    --header-file
+    --header
     --header-lines
     --margin"
 
@@ -62,7 +62,7 @@ _fzf_opts_completion() {
     COMPREPLY=( $(compgen -W "dark light 16 bw" -- ${cur}) )
     return 0
     ;;
-  --history|--header-file)
+  --history)
     COMPREPLY=()
     return 0
     ;;

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.centos

@@ -1,8 +1,10 @@
-FROM centos:centos7
+FROM centos:centos6
 MAINTAINER Junegunn Choi <junegunn.c@gmail.com>
 
 # yum
-RUN yum install -y git gcc make tar ncurses-devel
+RUN yum install -y git gcc make tar glibc-devel glibc-devel.i686 \
+    ncurses-devel ncurses-static ncurses-devel.i686 \
+    gpm-devel gpm-static libgcc.i686
 
 # Install Go 1.4
 RUN cd / && curl \
@@ -13,6 +15,9 @@ ENV GOPATH /go
 ENV GOROOT /go1.4
 ENV PATH /go1.4/bin:$PATH
 
+# For i386 build
+RUN cd $GOROOT/src && GOARCH=386 ./make.bash
+
 # Volume
 VOLUME /go
 

src/Makefile

@@ -5,19 +5,8 @@ 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)
@@ -27,11 +16,11 @@ endif
 SOURCES   := $(wildcard *.go */*.go)
 BINDIR    := ../bin
 
-BINARY32  := fzf-$(GOOS)_386$(SUFFIX)
-BINARY64  := fzf-$(GOOS)_amd64$(SUFFIX)
+BINARY32  := fzf-$(GOOS)_386
+BINARY64  := fzf-$(GOOS)_amd64
 VERSION    = $(shell fzf/$(BINARY64) --version)
-RELEASE32  = fzf-$(VERSION)-$(GOOS)_386$(SUFFIX)
-RELEASE64  = fzf-$(VERSION)-$(GOOS)_amd64$(SUFFIX)
+RELEASE32  = fzf-$(VERSION)-$(GOOS)_386
+RELEASE64  = fzf-$(VERSION)-$(GOOS)_amd64
 
 all: release
 
@@ -40,11 +29,7 @@ release: build
 	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64) && \
 	rm -f $(RELEASE32) $(RELEASE64)
 
-ifndef STATIC
 build: test fzf/$(BINARY32) fzf/$(BINARY64)
-else
-build: test fzf/$(BINARY64)
-endif
 
 test:
 	go get
@@ -59,10 +44,10 @@ clean:
 	cd fzf && rm -f fzf-*
 
 fzf/$(BINARY32): $(SOURCES)
-	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -o $(BINARY32)
+	cd fzf && GOARCH=386 CGO_ENABLED=1 go build -a -o $(BINARY32)
 
 fzf/$(BINARY64): $(SOURCES)
-	cd fzf && go build $(LDFLAGS) -o $(BINARY64)
+	cd fzf && go build -a -tags "$(TAGS)" -o $(BINARY64)
 
 $(BINDIR)/fzf: fzf/$(BINARY64) | $(BINDIR)
 	cp -f fzf/$(BINARY64) $(BINDIR)
@@ -77,6 +62,9 @@ docker-arch:
 docker-ubuntu:
 	docker build -t junegunn/ubuntu-sandbox - < Dockerfile.ubuntu
 
+docker-centos:
+	docker build -t junegunn/centos-sandbox - < Dockerfile.centos
+
 arch: docker-arch
 	docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
 		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
@@ -85,13 +73,13 @@ 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'
+centos: docker-centos
+	docker run -i -t -v $(GOPATH):/go junegunn/$@-sandbox \
+		sh -c 'cd /go/src/github.com/junegunn/fzf/src; /bin/bash'
 
-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'
+linux: docker-centos
+	docker run -i -t -v $(GOPATH):/go junegunn/centos-sandbox \
+		/bin/bash -ci 'cd /go/src/github.com/junegunn/fzf/src; make TAGS=static'
 
 .PHONY: all build release test install uninstall clean docker \
-	linux linux-static arch ubuntu docker-arch docker-ubuntu
+	linux arch ubuntu centos docker-arch docker-ubuntu docker-centos

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)
-	plen := len(pattern)
-	if numRunes < plen {
+	lenRunes := len(runes)
+	lenPattern := len(pattern)
+
+	if lenRunes < lenPattern {
 		return -1, -1
 	}
 
 	pidx := 0
-	for index := 0; index < numRunes; index++ {
-		char := runes[index]
+	for index := 0; index < lenRunes; 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 {
-				return index - plen + 1, index + 1
+			if pidx == lenPattern {
+				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, true, "fooBarbaz", "oBZ", -1, -1)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "oBz", 2, 9)
-	assertMatch(t, FuzzyMatch, true, "fooBarbaz", "fooBarbazz", -1, -1)
+	assertMatch(t, FuzzyMatch, false, true, "fooBarbaz", "oBZ", 2, 9)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBZ", -1, -1)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "oBz", 2, 9)
+	assertMatch(t, FuzzyMatch, true, true, "fooBarbaz", "fooBarbazz", -1, -1)
+}
+
+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)
-	assertMatch(t, ExactMatchNaive, true, "fooBarbaz", "oBA", -1, -1)
-	assertMatch(t, ExactMatchNaive, true, "fooBarbaz", "fooBarbazz", -1, -1)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, ExactMatchNaive, false, dir, "fooBarbaz", "oBA", 2, 5)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "oBA", -1, -1)
+		assertMatch(t, ExactMatchNaive, true, dir, "fooBarbaz", "fooBarbazz", -1, -1)
+	}
+}
+
+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)
-	assertMatch(t, PrefixMatch, true, "fooBarbaz", "Foo", -1, -1)
-	assertMatch(t, PrefixMatch, false, "fooBarbaz", "baz", -1, -1)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "Foo", 0, 3)
+		assertMatch(t, PrefixMatch, true, dir, "fooBarbaz", "Foo", -1, -1)
+		assertMatch(t, PrefixMatch, false, dir, "fooBarbaz", "baz", -1, -1)
+	}
 }
 
 func TestSuffixMatch(t *testing.T) {
-	assertMatch(t, SuffixMatch, false, "fooBarbaz", "Foo", -1, -1)
-	assertMatch(t, SuffixMatch, false, "fooBarbaz", "baz", 6, 9)
-	assertMatch(t, SuffixMatch, true, "fooBarbaz", "Baz", -1, -1)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "Foo", -1, -1)
+		assertMatch(t, SuffixMatch, false, dir, "fooBarbaz", "baz", 6, 9)
+		assertMatch(t, SuffixMatch, true, dir, "fooBarbaz", "Baz", -1, -1)
+	}
 }
 
 func TestEmptyPattern(t *testing.T) {
-	assertMatch(t, FuzzyMatch, true, "foobar", "", 0, 0)
-	assertMatch(t, ExactMatchNaive, true, "foobar", "", 0, 0)
-	assertMatch(t, PrefixMatch, true, "foobar", "", 0, 0)
-	assertMatch(t, SuffixMatch, true, "foobar", "", 6, 6)
+	for _, dir := range []bool{true, false} {
+		assertMatch(t, FuzzyMatch, true, dir, "foobar", "", 0, 0)
+		assertMatch(t, ExactMatchNaive, true, dir, "foobar", "", 0, 0)
+		assertMatch(t, PrefixMatch, true, dir, "foobar", "", 0, 0)
+		assertMatch(t, SuffixMatch, true, dir, "foobar", "", 6, 6)
+	}
 }

src/constants.go

@@ -8,7 +8,7 @@ import (
 
 const (
 	// Current version
-	version = "0.10.4"
+	version = "0.10.6"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond
@@ -47,3 +47,10 @@ const (
 	EvtHeader
 	EvtClose
 )
+
+const (
+	exitOk        = 0
+	exitNoMatch   = 1
+	exitError     = 2
+	exitInterrupt = 130
+)

src/core.go

@@ -56,7 +56,7 @@ func Run(opts *Options) {
 
 	if opts.Version {
 		fmt.Println(version)
-		os.Exit(0)
+		os.Exit(exitOk)
 	}
 
 	// Event channel
@@ -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)
 
@@ -155,12 +156,14 @@ func Run(opts *Options) {
 
 		pattern := patternBuilder([]rune(*opts.Filter))
 
+		found := false
 		if streamingFilter {
 			reader := Reader{
 				func(runes []byte) bool {
 					item := chunkList.trans(runes, 0)
 					if item != nil && pattern.MatchItem(item) {
 						fmt.Println(string(item.text))
+						found = true
 					}
 					return false
 				}, eventBox, opts.ReadZero}
@@ -175,9 +178,13 @@ func Run(opts *Options) {
 				pattern: pattern})
 			for i := 0; i < merger.Length(); i++ {
 				fmt.Println(merger.Get(i).AsString(opts.Ansi))
+				found = true
 			}
 		}
-		os.Exit(0)
+		if found {
+			os.Exit(exitOk)
+		}
+		os.Exit(exitNoMatch)
 	}
 
 	// Synchronous search
@@ -231,7 +238,7 @@ func Run(opts *Options) {
 					}
 
 				case EvtHeader:
-					terminal.UpdateHeader(value.([]string), opts.HeaderLines)
+					terminal.UpdateHeader(value.([]string))
 
 				case EvtSearchFin:
 					switch val := value.(type) {
@@ -252,7 +259,10 @@ func Run(opts *Options) {
 									for i := 0; i < count; i++ {
 										fmt.Println(val.Get(i).AsString(opts.Ansi))
 									}
-									os.Exit(0)
+									if count > 0 {
+										os.Exit(exitOk)
+									}
+									os.Exit(exitNoMatch)
 								}
 								deferred = false
 								terminal.startChan <- true

src/curses/curses.go

@@ -3,7 +3,8 @@ package curses
 /*
 #include <ncurses.h>
 #include <locale.h>
-#cgo LDFLAGS: -lncurses
+#cgo !static LDFLAGS: -lncurses
+#cgo static LDFLAGS: -l:libncurses.a -l:libtinfo.a -l:libgpm.a -ldl
 */
 import "C"
 
@@ -261,7 +262,7 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
 	_screen = C.newterm(nil, C.stderr, C.stdin)
 	if _screen == nil {
 		fmt.Println("Invalid $TERM: " + os.Getenv("TERM"))
-		os.Exit(1)
+		os.Exit(2)
 	}
 	C.set_term(_screen)
 	if mouse {
@@ -275,7 +276,7 @@ func Init(theme *ColorTheme, black bool, mouse bool) {
 	go func() {
 		<-intChan
 		Close()
-		os.Exit(1)
+		os.Exit(2)
 	}()
 
 	if theme != nil {

src/options.go

@@ -1,7 +1,6 @@
 package fzf
 
 import (
-	"io/ioutil"
 	"os"
 	"regexp"
 	"strconv"
@@ -45,7 +44,7 @@ const usage = `usage: fzf [options]
     --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=STR          String to print as header
     --header-lines=N      The first N lines of the input are treated as header
 
   Scripting
@@ -180,14 +179,14 @@ func defaultOptions() *Options {
 		Version:     false}
 }
 
-func help(ok int) {
+func help(code int) {
 	os.Stderr.WriteString(usage)
-	os.Exit(ok)
+	os.Exit(code)
 }
 
 func errorExit(msg string) {
 	os.Stderr.WriteString(msg + "\n")
-	os.Exit(1)
+	os.Exit(exitError)
 }
 
 func optString(arg string, prefixes ...string) (bool, string) {
@@ -604,12 +603,8 @@ func checkToggleSort(keymap map[int]actionType, str string) map[int]actionType {
 	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 strLines(str string) []string {
+	return strings.Split(strings.TrimSuffix(str, "\n"), "\n")
 }
 
 func parseMargin(margin string) [4]string {
@@ -682,7 +677,7 @@ func parseOptions(opts *Options, allArgs []string) {
 		arg := allArgs[i]
 		switch arg {
 		case "-h", "--help":
-			help(0)
+			help(exitOk)
 		case "-x", "--extended":
 			opts.Mode = ModeExtended
 		case "-e", "--extended-exact":
@@ -793,16 +788,13 @@ func parseOptions(opts *Options, allArgs []string) {
 			setHistory(nextString(allArgs, &i, "history file path required"))
 		case "--history-size":
 			setHistoryMax(nextInt(allArgs, &i, "history max size required"))
-		case "--no-header-file":
+		case "--no-header":
 			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":
+			opts.Header = strLines(nextString(allArgs, &i, "header string required"))
 		case "--header-lines":
-			opts.Header = []string{}
 			opts.HeaderLines = atoi(
 				nextString(allArgs, &i, "number of header lines required"))
 		case "--no-margin":
@@ -843,11 +835,9 @@ func parseOptions(opts *Options, allArgs []string) {
 				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="); match {
+				opts.Header = strLines(value)
 			} 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)

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     Delimiter
 	nth           []Range
-	procFun       map[termType]func(bool, []rune, []rune) (int, int)
+	procFun       map[termType]func(bool, bool, []rune, []rune) (int, int)
 }
 
 var (
@@ -70,7 +71,7 @@ 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 Delimiter, runes []rune) *Pattern {
 
 	var asString string
@@ -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),
-	tokens []Token, caseSensitive bool, pattern []rune) (int, int) {
+func (p *Pattern) iter(pfun func(bool, bool, []rune, []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$")
 	if len(terms) != 8 ||
 		terms[0].typ != termExact || terms[0].inv || len(terms[0].text) != 3 ||
-		terms[1].typ != termExact || terms[1].inv || len(terms[1].text) != 4 ||
+		terms[1].typ != termFuzzy || terms[1].inv || len(terms[1].text) != 3 ||
 		terms[2].typ != termPrefix || terms[2].inv || len(terms[2].text) != 3 ||
 		terms[3].typ != termSuffix || terms[3].inv || len(terms[3].text) != 3 ||
 		terms[4].typ != termExact || !terms[4].inv || len(terms[4].text) != 3 ||
-		terms[5].typ != termExact || !terms[5].inv || len(terms[5].text) != 4 ||
+		terms[5].typ != termFuzzy || !terms[5].inv || len(terms[5].text) != 3 ||
 		terms[6].typ != termPrefix || !terms[6].inv || len(terms[6].text) != 3 ||
 		terms[7].typ != termSuffix || !terms[7].inv || len(terms[7].text) != 3 {
 		t.Errorf("%s", terms)
@@ -58,10 +58,10 @@ func TestParseTermsEmpty(t *testing.T) {
 func TestExact(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart,
+	pattern := BuildPattern(ModeExtended, CaseSmart, true,
 		[]Range{}, Delimiter{}, []rune("'abc"))
 	sidx, eidx := algo.ExactMatchNaive(
-		pattern.caseSensitive, []rune("aabbcc abc"), pattern.terms[0].text)
+		pattern.caseSensitive, pattern.forward, []rune("aabbcc abc"), pattern.terms[0].text)
 	if sidx != 7 || eidx != 10 {
 		t.Errorf("%s / %d / %d", pattern.terms, sidx, eidx)
 	}
@@ -70,11 +70,11 @@ func TestExact(t *testing.T) {
 func TestEqual(t *testing.T) {
 	defer clearPatternCache()
 	clearPatternCache()
-	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, Delimiter{}, []rune("^AbC$"))
+	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{}, Delimiter{}, []rune("abc"))
+	pat1 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat2 := BuildPattern(ModeFuzzy, CaseSmart, []Range{}, Delimiter{}, []rune("Abc"))
+	pat2 := BuildPattern(ModeFuzzy, CaseSmart, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat3 := BuildPattern(ModeFuzzy, CaseIgnore, []Range{}, Delimiter{}, []rune("abc"))
+	pat3 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat4 := BuildPattern(ModeFuzzy, CaseIgnore, []Range{}, Delimiter{}, []rune("Abc"))
+	pat4 := BuildPattern(ModeFuzzy, CaseIgnore, true, []Range{}, Delimiter{}, []rune("Abc"))
 	clearPatternCache()
-	pat5 := BuildPattern(ModeFuzzy, CaseRespect, []Range{}, Delimiter{}, []rune("abc"))
+	pat5 := BuildPattern(ModeFuzzy, CaseRespect, true, []Range{}, Delimiter{}, []rune("abc"))
 	clearPatternCache()
-	pat6 := BuildPattern(ModeFuzzy, CaseRespect, []Range{}, Delimiter{}, []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 ||
@@ -109,7 +109,7 @@ func TestCaseSensitivity(t *testing.T) {
 }
 
 func TestOrigTextAndTransformed(t *testing.T) {
-	pattern := BuildPattern(ModeExtended, CaseSmart, []Range{}, Delimiter{}, []rune("jg"))
+	pattern := BuildPattern(ModeExtended, CaseSmart, true, []Range{}, Delimiter{}, []rune("jg"))
 	tokens := Tokenize([]rune("junegunn"), Delimiter{})
 	trans := Transform(tokens, []Range{Range{1, 1}})
 

src/terminal.go

@@ -42,6 +42,7 @@ type Terminal struct {
 	history    *History
 	cycle      bool
 	header     []string
+	header0    []string
 	ansi       bool
 	margin     [4]string
 	marginInt  [4]int
@@ -185,6 +186,12 @@ func defaultKeymap() map[int]actionType {
 // NewTerminal returns new Terminal object
 func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 	input := []rune(opts.Query)
+	var header []string
+	if opts.Reverse {
+		header = opts.Header
+	} else {
+		header = reverseStringArray(opts.Header)
+	}
 	return &Terminal{
 		inlineInfo: opts.InlineInfo,
 		prompt:     opts.Prompt,
@@ -207,7 +214,8 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		margin:     opts.Margin,
 		marginInt:  [4]int{0, 0, 0, 0},
 		cycle:      opts.Cycle,
-		header:     opts.Header,
+		header:     header,
+		header0:    header,
 		ansi:       opts.Ansi,
 		reading:    true,
 		merger:     EmptyMerger,
@@ -241,18 +249,19 @@ 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
+func reverseStringArray(input []string) []string {
+	size := len(input)
+	reversed := make([]string, size)
+	for idx, str := range input {
+		reversed[size-idx-1] = str
 	}
+	return reversed
+}
+
+// UpdateHeader updates the header
+func (t *Terminal) UpdateHeader(header []string) {
+	t.mutex.Lock()
+	t.header = append(append([]string{}, t.header0...), header...)
 	t.mutex.Unlock()
 	t.reqBox.Set(reqHeader, nil)
 }
@@ -280,17 +289,19 @@ func (t *Terminal) UpdateList(merger *Merger) {
 	t.reqBox.Set(reqList, nil)
 }
 
-func (t *Terminal) output() {
+func (t *Terminal) output() bool {
 	if t.printQuery {
 		fmt.Println(string(t.input))
 	}
 	if len(t.expect) > 0 {
 		fmt.Println(t.pressed)
 	}
-	if len(t.selected) == 0 {
+	found := len(t.selected) > 0
+	if !found {
 		cnt := t.merger.Length()
 		if cnt > 0 && cnt > t.cy {
 			fmt.Println(t.merger.Get(t.cy).AsString(t.ansi))
+			found = true
 		}
 	} else {
 		sels := make([]selectedItem, 0, len(t.selected))
@@ -302,6 +313,7 @@ func (t *Terminal) output() {
 			fmt.Println(*sel.text)
 		}
 	}
+	return found
 }
 
 func runeWidth(r rune, prefixWidth int) int {
@@ -433,9 +445,6 @@ func (t *Terminal) printHeader() {
 	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--
@@ -743,7 +752,7 @@ func (t *Terminal) Loop() {
 	}
 
 	exit := func(code int) {
-		if code == 0 && t.history != nil {
+		if code <= exitNoMatch && t.history != nil {
 			t.history.append(string(t.input))
 		}
 		os.Exit(code)
@@ -776,11 +785,13 @@ func (t *Terminal) Loop() {
 						t.printAll()
 					case reqClose:
 						C.Close()
-						t.output()
-						exit(0)
+						if t.output() {
+							exit(exitOk)
+						}
+						exit(exitNoMatch)
 					case reqQuit:
 						C.Close()
-						exit(1)
+						exit(exitInterrupt)
 					}
 				}
 				t.placeCursor()

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' }
@@ -726,8 +737,8 @@ class TestGoFZF < TestBase
     assert_equal '6', readonce.chomp
   end
 
-  def test_header_file
-    tmux.send_keys "seq 100 | #{fzf "--header-file <(head -5 #{__FILE__})"}", :Enter
+  def test_header
+    tmux.send_keys "seq 100 | #{fzf "--header \\\"\\$(head -5 #{__FILE__})\\\""}", :Enter
     header = File.readlines(__FILE__).take(5).map(&:strip)
     tmux.until do |lines|
       lines[-2].include?('100/100') &&
@@ -735,8 +746,8 @@ class TestGoFZF < TestBase
     end
   end
 
-  def test_header_file_reverse
-    tmux.send_keys "seq 100 | #{fzf "--header-file=<(head -5 #{__FILE__}) --reverse"}", :Enter
+  def test_header_reverse
+    tmux.send_keys "seq 100 | #{fzf "--header=\\\"\\$(head -5 #{__FILE__})\\\" --reverse"}", :Enter
     header = File.readlines(__FILE__).take(5).map(&:strip)
     tmux.until do |lines|
       lines[1].include?('100/100') &&
@@ -744,6 +755,26 @@ class TestGoFZF < TestBase
     end
   end
 
+  def test_header_and_header_lines
+    tmux.send_keys "seq 100 | #{fzf "--header-lines 10 --header \\\"\\$(head -5 #{__FILE__})\\\""}", :Enter
+    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[-2].include?('90/90') &&
+      lines[-7...-2].map(&:strip) == header &&
+      lines[-17...-7].map(&:strip) == (1..10).map(&:to_s).reverse
+    end
+  end
+
+  def test_header_and_header_lines_reverse
+    tmux.send_keys "seq 100 | #{fzf "--reverse --header-lines 10 --header \\\"\\$(head -5 #{__FILE__})\\\""}", :Enter
+    header = File.readlines(__FILE__).take(5).map(&:strip)
+    tmux.until do |lines|
+      lines[1].include?('90/90') &&
+      lines[2...7].map(&:strip) == header &&
+      lines[7...17].map(&:strip) == (1..10).map(&:to_s)
+    end
+  end
+
   def test_canel
     tmux.send_keys "seq 10 | #{fzf "--bind 2:cancel"}", :Enter
     tmux.until { |lines| lines[-2].include?('10/10') }
@@ -769,11 +800,6 @@ class TestGoFZF < TestBase
     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
-
   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
@@ -790,6 +816,47 @@ class TestGoFZF < TestBase
     assert_equal src, `cat #{tempname} | #{FZF} -fhehe -x -n 2.. --with-nth 2,1,1 --no-ansi`.chomp
   end
 
+  def test_exit_0_exit_code
+    `echo foo | #{FZF} -q bar -0`
+    assert_equal 1, $?.exitstatus
+  end
+
+  def test_invalid_term
+    lines = `TERM=xxx #{FZF}`
+    assert_equal 2, $?.exitstatus
+    assert lines.include?('Invalid $TERM: xxx')
+  end
+
+  def test_invalid_option
+    lines = `#{FZF} --foobar 2>&1`
+    assert_equal 2, $?.exitstatus
+    assert lines.include?('unknown option: --foobar'), lines
+  end
+
+  def test_filter_exitstatus
+    # filter / streaming filter
+    ["", "--no-sort"].each do |opts|
+      assert `echo foo | #{FZF} -f foo #{opts}`.include?('foo')
+      assert_equal 0, $?.exitstatus
+
+      assert `echo foo | #{FZF} -f bar #{opts}`.empty?
+      assert_equal 1, $?.exitstatus
+    end
+  end
+
+  def test_exitstatus_empty
+    { '99' => '0', '999' => '1' }.each do |query, status|
+      tmux.send_keys "seq 100 | #{FZF} -q #{query}", :Enter
+      tmux.until { |lines| lines[-2] =~ %r{ [10]/100} }
+      tmux.send_keys :Enter
+
+      tmux.send_keys 'echo --\$?--'
+      tmux.until { |lines| lines.last.include? "echo --$?--" }
+      tmux.send_keys :Enter
+      tmux.until { |lines| lines.last.include? "--#{status}--" }
+    end
+  end
+
 private
   def writelines path, lines
     File.unlink path while File.exists? path