0.16.4

To override --height option in FZF_DEFAULT_OPTS

BUILD.md

@@ -25,65 +25,22 @@ make install
 # Build 32-bit and 64-bit executables and tarballs
 make release
 
-# Build executables and tarballs for Linux using Docker
-make linux
+# Make release archives for all supported platforms
+make release-all
 ```
 
 ### Using `go get`
 
 Alternatively, you can build fzf directly with `go get` command without
-cloning the repository.
+manually cloning the repository.
 
 ```sh
 go get -u github.com/junegunn/fzf/src/fzf
 ```
 
-Build options
--------------
-
-### With ncurses 6
-
-The official binaries of fzf are built with ncurses 5 because it's widely
-supported by different platforms. However ncurses 5 is old and has a number of
-limitations.
-
-1. Does not support more than 256 color pairs (See [357][357])
-2. Does not support italics
-3. Does not support 24-bit color
-
-[357]: https://github.com/junegunn/fzf/issues/357
-
-But you can manually build fzf with ncurses 6 to overcome some of these
-limitations. ncurses 6 supports up to 32767 color pairs (1), and supports
-italics (2). To build fzf with ncurses 6, you have to install it first. On
-macOS, you can use Homebrew to install it.
-
-```sh
-brew install homebrew/dupes/ncurses
-LDFLAGS="-L/usr/local/opt/ncurses/lib" make install
-```
-
-### With tcell
-
-[tcell][tcell] is a portable alternative to ncurses and we currently use it to
-build Windows binaries. tcell has many benefits but most importantly, it
-supports 24-bit colors. To build fzf with tcell:
-
-```sh
-TAGS=tcell make install
-```
-
-However, note that tcell has its own issues.
-
-- Poor rendering performance compared to ncurses
-- Does not support bracketed-paste mode
-- Does not support italics unlike ncurses 6
-- Some wide characters are not correctly displayed
-
 Third-party libraries used
 --------------------------
 
-- [ncurses][ncurses]
 - [mattn/go-runewidth](https://github.com/mattn/go-runewidth)
     - Licensed under [MIT](http://mattn.mit-license.org)
 - [mattn/go-shellwords](https://github.com/mattn/go-shellwords)
@@ -97,10 +54,3 @@ License
 -------
 
 [MIT](LICENSE)
-
-[install]: https://github.com/junegunn/fzf#installation
-[go]:      https://golang.org/
-[gil]:     http://en.wikipedia.org/wiki/Global_Interpreter_Lock
-[ncurses]: https://www.gnu.org/software/ncurses/
-[req]:     http://golang.org/doc/install
-[tcell]:   https://github.com/gdamore/tcell

CHANGELOG.md

@@ -1,6 +1,11 @@
 CHANGELOG
 =========
 
+0.16.4
+------
+- Added `--border` option to draw border above and below the finder
+- Bug fixes and improvements
+
 0.16.3
 ------
 - Fixed a bug where fzf incorrectly display the lines when straddling tab

README.md

@@ -72,16 +72,6 @@ But it's recommended that you use a plugin manager like
 Plug 'junegunn/fzf', { 'dir': '~/.fzf', 'do': './install --all' }
 ```
 
-### Upgrading fzf
-
-fzf is being actively developed and you might want to upgrade it once in a
-while. Please follow the instruction below depending on the installation
-method used.
-
-- git: `cd ~/.fzf && git pull && ./install`
-- brew: `brew update; brew reinstall fzf`
-- vim-plug: `:PlugUpdate fzf`
-
 ### Windows
 
 Pre-built binaries for Windows can be downloaded [here][bin]. However, other
@@ -91,6 +81,17 @@ flawlessly.
 
 [wsl]: https://blogs.msdn.microsoft.com/wsl/
 
+Upgrading fzf
+-------------
+
+fzf is being actively developed and you might want to upgrade it once in a
+while. Please follow the instruction below depending on the installation
+method used.
+
+- git: `cd ~/.fzf && git pull && ./install`
+- brew: `brew update; brew reinstall fzf`
+- vim-plug: `:PlugUpdate fzf`
+
 Building fzf
 ------------
 
@@ -140,10 +141,10 @@ vim $(fzf --height 40% --reverse)
 ```
 
 You can add these options to `$FZF_DEFAULT_OPTS` so that they're applied by
-default.
+default. For example,
 
 ```sh
-export FZF_DEFAULT_OPTS='--height 40% --reverse'
+export FZF_DEFAULT_OPTS='--height 40% --reverse --border'
 ```
 
 #### Search syntax
@@ -357,7 +358,7 @@ If you have set up fzf for Vim, `:FZF` command will be added.
 " With options
 :FZF --no-sort --reverse --inline-info /tmp
 
-" Bang version starts in fullscreen instead of using tmux pane or Neovim split
+" Bang version starts fzf in fullscreen mode
 :FZF!
 ```
 
@@ -408,20 +409,6 @@ command! -bang MyStuff
 Tips
 ----
 
-#### Rendering issues
-
-If you have any rendering issues, check the following:
-
-1. Make sure `$TERM` is correctly set. fzf will use 256-color only if it
-   contains `256` (e.g. `xterm-256color`)
-2. If you're on screen or tmux, `$TERM` should be either `screen` or
-   `screen-256color`
-3. Some terminal emulators (e.g. mintty) have problem displaying default
-   background color and make some text unable to read. In that case, try
-   `--black` option. And if it solves your problem, I recommend including it
-   in `FZF_DEFAULT_OPTS` for further convenience.
-4. If you still have problem, try `--no-256` option or even `--no-color`.
-
 #### Respecting `.gitignore`, `.hgignore`, and `svn:ignore`
 
 [ag](https://github.com/ggreer/the_silver_searcher) or

install

@@ -2,7 +2,7 @@
 
 set -u
 
-version=0.16.3
+version=0.16.4
 auto_completion=
 key_bindings=
 update_config=2
@@ -88,17 +88,6 @@ check_binary() {
   return 1
 }
 
-symlink() {
-  echo "  - Creating symlink: bin/$1 -> bin/fzf"
-  (cd "$fzf_base"/bin &&
-   rm -f fzf &&
-   ln -sf $1 fzf)
-  if [ $? -ne 0 ]; then
-    binary_error="Failed to create symlink"
-    return 1
-  fi
-}
-
 link_fzf_in_path() {
   if which_fzf="$(command -v fzf)"; then
     echo "  - Found in \$PATH"
@@ -124,9 +113,6 @@ download() {
       echo "  - Already exists"
       check_binary && return
     fi
-    if [ -x "$fzf_base"/bin/$1 ]; then
-      symlink $1 && check_binary && return
-    fi
     link_fzf_in_path && return
   fi
   mkdir -p "$fzf_base"/bin && cd "$fzf_base"/bin
@@ -147,12 +133,12 @@ download() {
   fi
   set +o pipefail
 
-  if [ ! -f $1 ]; then
+  if [ ! -f fzf ]; then
     binary_error="Failed to download ${1}"
     return
   fi
 
-  chmod +x $1 && symlink $1 && check_binary
+  chmod +x fzf && check_binary
 }
 
 # Try to download binary executable

man/man1/fzf-tmux.1

@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf-tmux 1 "Jan 2017" "fzf 0.16.3" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Feb 2017" "fzf 0.16.4" "fzf-tmux - open fzf in tmux split pane"
 
 .SH NAME
 fzf-tmux - open fzf in tmux split pane

man/man1/fzf.1

@@ -21,7 +21,7 @@ LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.
 ..
-.TH fzf 1 "Jan 2017" "fzf 0.16.3" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Feb 2017" "fzf 0.16.4" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -156,6 +156,9 @@ Ignored when \fB--height\fR is not specified.
 .B "--reverse"
 Reverse orientation
 .TP
+.B "--border"
+Draw border above and below the finder
+.TP
 .BI "--margin=" MARGIN
 Comma-separated expression for margins around the finder.
 .br

plugin/fzf.vim

@@ -28,10 +28,12 @@ let g:loaded_fzf = 1
 
 let s:default_layout = { 'down': '~40%' }
 let s:layout_keys = ['window', 'up', 'down', 'left', 'right']
-let s:fzf_go = expand('<sfile>:h:h').'/bin/fzf'
-let s:install = expand('<sfile>:h:h').'/install'
+let s:is_win = has('win32') || has('win64')
+let s:base_dir = expand('<sfile>:h:h')
+let s:fzf_go = s:base_dir.'/bin/fzf'
+let s:fzf_tmux = s:base_dir.'/bin/fzf-tmux'
+let s:install = s:base_dir.'/install'
 let s:installed = 0
-let s:fzf_tmux = expand('<sfile>:h:h').'/bin/fzf-tmux'
 
 let s:cpo_save = &cpo
 set cpo&vim
@@ -42,6 +44,11 @@ function! s:fzf_exec()
       let s:exec = s:fzf_go
     elseif executable('fzf')
       let s:exec = 'fzf'
+    elseif s:is_win
+      call s:warn('fzf executable not found.')
+      call s:warn('Download fzf binary for Windows from https://github.com/junegunn/fzf-bin/releases/')
+      call s:warn('and place it as '.s:base_dir.'\bin\fzf.exe')
+      throw 'fzf executable not found'
     elseif !s:installed && executable(s:install) &&
           \ input('fzf executable not found. Download binary? (y/n) ') =~? '^y'
       redraw
@@ -201,6 +208,10 @@ function! fzf#wrap(...)
   endfor
   let [name, opts, bang] = args
 
+  if len(name)
+    let opts.name = name
+  end
+
   " Layout: g:fzf_layout (and deprecated g:fzf_height)
   if bang
     for key in s:layout_keys
@@ -242,7 +253,7 @@ function! fzf#wrap(...)
 endfunction
 
 function! fzf#shellescape(path)
-  if has('win32') || has('win64')
+  if s:is_win
     let shellslash = &shellslash
     try
       set noshellslash
@@ -259,7 +270,7 @@ try
   let oshell = &shell
   let useshellslash = &shellslash
 
-  if has('win32') || has('win64')
+  if s:is_win
     set shell=cmd.exe
     set noshellslash
   else
@@ -303,7 +314,7 @@ try
 
   let prefer_tmux = get(g:, 'fzf_prefer_tmux', 0)
   let use_height = has_key(dict, 'down') &&
-        \ !(has('nvim') || has('win32') || has('win64') || s:present(dict, 'up', 'left', 'right')) &&
+        \ !(has('nvim') || s:is_win || s:present(dict, 'up', 'left', 'right')) &&
         \ executable('tput') && filereadable('/dev/tty')
   let use_term = has('nvim')
   let use_tmux = (!use_height && !use_term || prefer_tmux) && s:tmux_enabled() && s:splittable(dict)
@@ -401,7 +412,7 @@ function! s:xterm_launcher()
     \ &columns, &lines/2, getwinposx(), getwinposy())
 endfunction
 unlet! s:launcher
-if has('win32') || has('win64')
+if s:is_win
   let s:launcher = '%s'
 else
   let s:launcher = function('s:xterm_launcher')
@@ -521,6 +532,7 @@ function! s:execute_term(dict, command, temps) abort
   let winrest = winrestcmd()
   let pbuf = bufnr('')
   let [ppos, winopts] = s:split(a:dict)
+  let b:fzf = a:dict
   let fzf = { 'buf': bufnr(''), 'pbuf': pbuf, 'ppos': ppos, 'dict': a:dict, 'temps': a:temps,
             \ 'winopts': winopts, 'winrest': winrest, 'lines': &lines,
             \ 'columns': &columns, 'command': a:command }

src/Makefile

@@ -52,23 +52,23 @@ all: fzf/$(BINARY)
 
 ifeq ($(GOOS),windows)
 release: fzf/$(BINARY32) fzf/$(BINARY64)
-	cd fzf && cp $(BINARY32) $(RELEASE32).exe && zip $(RELEASE32).zip $(RELEASE32).exe
-	cd fzf && cp $(BINARY64) $(RELEASE64).exe && zip $(RELEASE64).zip $(RELEASE64).exe
-	cd fzf && rm -f $(RELEASE32).exe $(RELEASE64).exe
+	cd fzf && cp -f $(BINARY32) fzf.exe && zip $(RELEASE32).zip fzf.exe
+	cd fzf && cp -f $(BINARY64) fzf.exe && zip $(RELEASE64).zip fzf.exe
+	cd fzf && rm -f fzf.exe
 else ifeq ($(GOOS),linux)
 release: fzf/$(BINARY32) fzf/$(BINARY64) fzf/$(BINARYARM5) fzf/$(BINARYARM6) fzf/$(BINARYARM7) fzf/$(BINARYARM8)
-	cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
-	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64)
-	cd fzf && cp $(BINARYARM5) $(RELEASEARM5) && tar -czf $(RELEASEARM5).tgz $(RELEASEARM5)
-	cd fzf && cp $(BINARYARM6) $(RELEASEARM6) && tar -czf $(RELEASEARM6).tgz $(RELEASEARM6)
-	cd fzf && cp $(BINARYARM7) $(RELEASEARM7) && tar -czf $(RELEASEARM7).tgz $(RELEASEARM7)
-	cd fzf && cp $(BINARYARM8) $(RELEASEARM8) && tar -czf $(RELEASEARM8).tgz $(RELEASEARM8)
-	cd fzf && rm -f $(RELEASE32) $(RELEASE64) $(RELEASEARM5) $(RELEASEARM6) $(RELEASEARM7) $(RELEASEARM8)
+	cd fzf && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
+	cd fzf && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
+	cd fzf && cp -f $(BINARYARM5) fzf && tar -czf $(RELEASEARM5).tgz fzf
+	cd fzf && cp -f $(BINARYARM6) fzf && tar -czf $(RELEASEARM6).tgz fzf
+	cd fzf && cp -f $(BINARYARM7) fzf && tar -czf $(RELEASEARM7).tgz fzf
+	cd fzf && cp -f $(BINARYARM8) fzf && tar -czf $(RELEASEARM8).tgz fzf
+	cd fzf && rm -f fzf
 else
 release: fzf/$(BINARY32) fzf/$(BINARY64)
-	cd fzf && cp $(BINARY32) $(RELEASE32) && tar -czf $(RELEASE32).tgz $(RELEASE32)
-	cd fzf && cp $(BINARY64) $(RELEASE64) && tar -czf $(RELEASE64).tgz $(RELEASE64)
-	cd fzf && rm -f $(RELEASE32) $(RELEASE64)
+	cd fzf && cp -f $(BINARY32) fzf && tar -czf $(RELEASE32).tgz fzf
+	cd fzf && cp -f $(BINARY64) fzf && tar -czf $(RELEASE64).tgz fzf
+	cd fzf && rm -f fzf
 endif
 
 release-all: clean test

src/ansi.go

@@ -44,7 +44,7 @@ func init() {
 	*/
 	// The following regular expression will include not all but most of the
 	// frequently used ANSI sequences
-	ansiRegex = regexp.MustCompile("\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b.|[\x08\x0e\x0f]")
+	ansiRegex = regexp.MustCompile("\x1b[\\[()][0-9;]*[a-zA-Z@]|\x1b.|[\x0e\x0f]|.\x08")
 }
 
 func extractColor(str string, state *ansiState, proc func(string, *ansiState) bool) (string, *[]ansiOffset, *ansiState) {

src/constants.go

@@ -8,7 +8,7 @@ import (
 
 const (
 	// Current version
-	version = "0.16.3"
+	version = "0.16.4"
 
 	// Core
 	coordinatorDelayMax  time.Duration = 100 * time.Millisecond

src/deps

@@ -13,6 +13,6 @@ reset() (
 )
 
 reset github.com/junegunn/go-isatty     66b8e73f3f5cda9f96b69efd03dd3d7fc4a5cdb8
-reset github.com/junegunn/go-runewidth  63c378b851290989b19ca955468386485f118c65
+reset github.com/junegunn/go-runewidth  14207d285c6c197daabb5c9793d63e7af9ab2d50
 reset github.com/junegunn/go-shellwords 33bd8f1ebe16d6e5eb688cc885749a63059e9167
 reset golang.org/x/crypto               abc5fa7ad02123a41f02bf1391c9760f7586e608

src/options.go

@@ -54,6 +54,7 @@ const usage = `usage: fzf [options]
     --min-height=HEIGHT   Minimum height when --height is given in percent
                           (default: 10)
     --reverse             Reverse orientation
+    --border              Draw border above and below the finder
     --margin=MARGIN       Screen margin (TRBL / TB,RL / T,RL,B / T,R,B,L)
     --inline-info         Display finder info inline with the query
     --prompt=STR          Input prompt (default: '> ')
@@ -183,6 +184,7 @@ type Options struct {
 	Header      []string
 	HeaderLines int
 	Margin      [4]sizeSpec
+	Bordered    bool
 	Tabstop     int
 	Version     bool
 }
@@ -1086,6 +1088,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Height = sizeSpec{}
 		case "--no-margin":
 			opts.Margin = defaultMargin()
+		case "--no-border":
+			opts.Bordered = false
+		case "--border":
+			opts.Bordered = true
 		case "--margin":
 			opts.Margin = parseMargin(
 				nextString(allArgs, &i, "margin required (TRBL / TB,RL / T,RL,B / T,R,B,L)"))

src/pattern.go

@@ -101,7 +101,7 @@ func BuildPattern(fuzzy bool, fuzzyAlgo algo.Algo, extended bool, caseMode Case,
 			for idx, term := range termSet {
 				// If the query contains inverse search terms or OR operators,
 				// we cannot cache the search scope
-				if !cacheable || idx > 0 || term.inv {
+				if !cacheable || idx > 0 || term.inv || !fuzzy && term.typ != termExact {
 					cacheable = false
 					break Loop
 				}

src/pattern_test.go

@@ -186,3 +186,21 @@ func TestCacheKey(t *testing.T) {
 	test(true, "foo | bar !baz", "", false)
 	test(true, "| | | foo", "foo", true)
 }
+
+func TestCacheable(t *testing.T) {
+	test := func(fuzzy bool, str string, cacheable bool) {
+		clearPatternCache()
+		pat := BuildPattern(fuzzy, algo.FuzzyMatchV2, true, CaseSmart, true, true, true, []Range{}, Delimiter{}, []rune(str))
+		if cacheable != pat.cacheable {
+			t.Errorf("Invalid Pattern.cacheable for \"%s\": %v (expected: %v)", str, pat.cacheable, cacheable)
+		}
+	}
+	test(true, "foo bar", true)
+	test(true, "foo 'bar", true)
+	test(true, "foo !bar", false)
+
+	test(false, "foo bar", true)
+	test(false, "foo '", true)
+	test(false, "foo 'bar", false)
+	test(false, "foo !bar", false)
+}

src/result.go

@@ -37,12 +37,14 @@ func buildResult(item *Item, offsets []Offset, score int, trimLen int) *Result {
 	result := Result{item: item, rank: rank{index: item.index}}
 	numChars := item.text.Length()
 	minBegin := math.MaxUint16
+	minEnd := math.MaxUint16
 	maxEnd := 0
 	validOffsetFound := false
 	for _, offset := range offsets {
 		b, e := int(offset[0]), int(offset[1])
 		if b < e {
 			minBegin = util.Min(b, minBegin)
+			minEnd = util.Min(e, minEnd)
 			maxEnd = util.Max(e, maxEnd)
 			validOffsetFound = true
 		}
@@ -68,7 +70,7 @@ func buildResult(item *Item, offsets []Offset, score int, trimLen int) *Result {
 					}
 				}
 				if criterion == byBegin {
-					val = util.AsUint16(minBegin - whitePrefixLen)
+					val = util.AsUint16(minEnd - whitePrefixLen)
 				} else {
 					val = util.AsUint16(math.MaxUint16 - math.MaxUint16*(maxEnd-whitePrefixLen)/trimLen)
 				}

src/terminal.go

@@ -83,8 +83,10 @@ type Terminal struct {
 	tabstop    int
 	margin     [4]sizeSpec
 	strong     tui.Attr
+	bordered   bool
+	border     tui.Window
 	window     tui.Window
-	bwindow    tui.Window
+	pborder    tui.Window
 	pwindow    tui.Window
 	count      int
 	progress   int
@@ -295,15 +297,22 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		maxHeightFunc := func(termHeight int) int {
 			var maxHeight int
 			if opts.Height.percent {
-				maxHeight = util.Min(termHeight,
-					util.Max(int(opts.Height.size*float64(termHeight)/100.0), opts.MinHeight))
+				maxHeight = util.Max(int(opts.Height.size*float64(termHeight)/100.0), opts.MinHeight)
 			} else {
-				maxHeight = util.Min(termHeight, int(opts.Height.size))
+				maxHeight = int(opts.Height.size)
+			}
+
+			effectiveMinHeight := minHeight
+			if previewBox != nil && (opts.Preview.position == posUp || opts.Preview.position == posDown) {
+				effectiveMinHeight *= 2
 			}
 			if opts.InlineInfo {
-				return util.Max(maxHeight, minHeight-1)
+				effectiveMinHeight -= 1
 			}
-			return util.Max(maxHeight, minHeight)
+			if opts.Bordered {
+				effectiveMinHeight += 2
+			}
+			return util.Min(termHeight, util.Max(maxHeight, effectiveMinHeight))
 		}
 		renderer = tui.NewLightRenderer(opts.Theme, opts.Black, opts.Mouse, opts.Tabstop, maxHeightFunc)
 	} else if tui.HasFullscreenRenderer() {
@@ -343,6 +352,7 @@ func NewTerminal(opts *Options, eventBox *util.EventBox) *Terminal {
 		printQuery: opts.PrintQuery,
 		history:    opts.History,
 		margin:     opts.Margin,
+		bordered:   opts.Bordered,
 		strong:     strongAttr,
 		cycle:      opts.Cycle,
 		header:     header,
@@ -499,6 +509,9 @@ func (t *Terminal) resizeWindows() {
 		} else {
 			marginInt[idx] = int(sizeSpec.size)
 		}
+		if t.bordered && idx%2 == 0 {
+			marginInt[idx] += 1
+		}
 	}
 	adjust := func(idx1 int, idx2 int, max int, min int) {
 		if max >= min {
@@ -524,19 +537,29 @@ func (t *Terminal) resizeWindows() {
 	}
 	adjust(1, 3, screenWidth, minAreaWidth)
 	adjust(0, 2, screenHeight, minAreaHeight)
+	if t.border != nil {
+		t.border.Close()
+	}
 	if t.window != nil {
 		t.window.Close()
 	}
-	if t.bwindow != nil {
-		t.bwindow.Close()
+	if t.pborder != nil {
+		t.pborder.Close()
 		t.pwindow.Close()
 	}
 
 	width := screenWidth - marginInt[1] - marginInt[3]
 	height := screenHeight - marginInt[0] - marginInt[2]
+	if t.bordered {
+		t.border = t.tui.NewWindow(
+			marginInt[0]-1,
+			marginInt[3],
+			width,
+			height+2, tui.BorderHorizontal)
+	}
 	if previewVisible {
 		createPreviewWindow := func(y int, x int, w int, h int) {
-			t.bwindow = t.tui.NewWindow(y, x, w, h, true)
+			t.pborder = t.tui.NewWindow(y, x, w, h, tui.BorderAround)
 			pwidth := w - 4
 			// ncurses auto-wraps the line when the cursor reaches the right-end of
 			// the window. To prevent unintended line-wraps, we use the width one
@@ -544,28 +567,28 @@ func (t *Terminal) resizeWindows() {
 			if !t.preview.wrap && t.tui.DoesAutoWrap() {
 				pwidth += 1
 			}
-			t.pwindow = t.tui.NewWindow(y+1, x+2, pwidth, h-2, false)
+			t.pwindow = t.tui.NewWindow(y+1, x+2, pwidth, h-2, tui.BorderNone)
 		}
 		switch t.preview.position {
 		case posUp:
 			pheight := calculateSize(height, t.preview.size, minHeight, 3)
 			t.window = t.tui.NewWindow(
-				marginInt[0]+pheight, marginInt[3], width, height-pheight, false)
+				marginInt[0]+pheight, marginInt[3], width, height-pheight, tui.BorderNone)
 			createPreviewWindow(marginInt[0], marginInt[3], width, pheight)
 		case posDown:
 			pheight := calculateSize(height, t.preview.size, minHeight, 3)
 			t.window = t.tui.NewWindow(
-				marginInt[0], marginInt[3], width, height-pheight, false)
+				marginInt[0], marginInt[3], width, height-pheight, tui.BorderNone)
 			createPreviewWindow(marginInt[0]+height-pheight, marginInt[3], width, pheight)
 		case posLeft:
 			pwidth := calculateSize(width, t.preview.size, minWidth, 5)
 			t.window = t.tui.NewWindow(
-				marginInt[0], marginInt[3]+pwidth, width-pwidth, height, false)
+				marginInt[0], marginInt[3]+pwidth, width-pwidth, height, tui.BorderNone)
 			createPreviewWindow(marginInt[0], marginInt[3], pwidth, height)
 		case posRight:
 			pwidth := calculateSize(width, t.preview.size, minWidth, 5)
 			t.window = t.tui.NewWindow(
-				marginInt[0], marginInt[3], width-pwidth, height, false)
+				marginInt[0], marginInt[3], width-pwidth, height, tui.BorderNone)
 			createPreviewWindow(marginInt[0], marginInt[3]+width-pwidth, pwidth, height)
 		}
 	} else {
@@ -573,7 +596,7 @@ func (t *Terminal) resizeWindows() {
 			marginInt[0],
 			marginInt[3],
 			width,
-			height, false)
+			height, tui.BorderNone)
 	}
 	if !t.tui.IsOptimized() && t.theme != nil && t.theme.HasBg() {
 		for i := 0; i < t.window.Height(); i++ {
@@ -978,11 +1001,15 @@ func (t *Terminal) printAll() {
 
 func (t *Terminal) refresh() {
 	if !t.suppress {
-		if t.hasPreviewWindow() {
-			t.tui.RefreshWindows([]tui.Window{t.bwindow, t.pwindow, t.window})
-		} else {
-			t.tui.RefreshWindows([]tui.Window{t.window})
+		windows := make([]tui.Window, 0, 4)
+		if t.bordered {
+			windows = append(windows, t.border)
 		}
+		if t.hasPreviewWindow() {
+			windows = append(windows, t.pborder, t.pwindow)
+		}
+		windows = append(windows, t.window)
+		t.tui.RefreshWindows(windows)
 	}
 }
 

src/tui/dummy.go

@@ -40,6 +40,6 @@ func (r *FullscreenRenderer) MaxY() int          { return 0 }
 
 func (r *FullscreenRenderer) RefreshWindows(windows []Window) {}
 
-func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, border bool) Window {
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
 	return nil
 }

src/tui/light.go

@@ -95,7 +95,7 @@ type LightRenderer struct {
 type LightWindow struct {
 	renderer *LightRenderer
 	colored  bool
-	border   bool
+	border   BorderStyle
 	top      int
 	left     int
 	width    int
@@ -600,11 +600,11 @@ func (r *LightRenderer) IsOptimized() bool {
 	return false
 }
 
-func (r *LightRenderer) NewWindow(top int, left int, width int, height int, border bool) Window {
+func (r *LightRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
 	w := &LightWindow{
 		renderer: r,
 		colored:  r.theme != nil,
-		border:   border,
+		border:   borderStyle,
 		top:      top,
 		left:     left,
 		width:    width,
@@ -614,13 +614,27 @@ func (r *LightRenderer) NewWindow(top int, left int, width int, height int, bord
 	if r.theme != nil {
 		w.bg = r.theme.Bg
 	}
-	if w.border {
 	w.drawBorder()
-	}
 	return w
 }
 
 func (w *LightWindow) drawBorder() {
+	switch w.border {
+	case BorderAround:
+		w.drawBorderAround()
+	case BorderHorizontal:
+		w.drawBorderHorizontal()
+	}
+}
+
+func (w *LightWindow) drawBorderHorizontal() {
+	w.Move(0, 0)
+	w.CPrint(ColBorder, AttrRegular, repeat("─", w.width))
+	w.Move(w.height-1, 0)
+	w.CPrint(ColBorder, AttrRegular, repeat("─", w.width))
+}
+
+func (w *LightWindow) drawBorderAround() {
 	w.Move(0, 0)
 	w.CPrint(ColBorder, AttrRegular, "┌"+repeat("─", w.width-2)+"┐")
 	for y := 1; y < w.height-1; y++ {
@@ -748,13 +762,17 @@ func (w *LightWindow) Print(text string) {
 	w.cprint2(colDefault, w.bg, AttrRegular, text)
 }
 
+func cleanse(str string) string {
+	return strings.Replace(str, "\x1b", "?", -1)
+}
+
 func (w *LightWindow) CPrint(pair ColorPair, attr Attr, text string) {
 	if !w.colored {
 		w.csiColor(colDefault, colDefault, attrFor(pair, attr))
 	} else {
 		w.csiColor(pair.Fg(), pair.Bg(), attr)
 	}
-	w.stderrInternal(text, false)
+	w.stderrInternal(cleanse(text), false)
 	w.csi("m")
 }
 
@@ -762,7 +780,7 @@ func (w *LightWindow) cprint2(fg Color, bg Color, attr Attr, text string) {
 	if w.csiColor(fg, bg, attr) {
 		defer w.csi("m")
 	}
-	w.stderrInternal(text, false)
+	w.stderrInternal(cleanse(text), false)
 }
 
 type wrappedLine struct {
@@ -850,9 +868,7 @@ func (w *LightWindow) FinishFill() {
 }
 
 func (w *LightWindow) Erase() {
-	if w.border {
 	w.drawBorder()
-	}
 	// We don't erase the window here to avoid flickering during scroll
 	w.Move(0, 0)
 }

src/tui/ncurses.go

@@ -189,12 +189,13 @@ func (r *FullscreenRenderer) Close() {
 	C.delscreen(_screen)
 }
 
-func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, border bool) Window {
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
 	win := C.newwin(C.int(height), C.int(width), C.int(top), C.int(left))
 	if r.theme != nil {
 		C.wbkgd(win, C.chtype(C.COLOR_PAIR(C.int(ColNormal.index()))))
 	}
-	if border {
+	// FIXME Does not implement BorderHorizontal
+	if borderStyle != BorderNone {
 		pair, attr := _colorFn(ColBorder, 0)
 		C.wcolor_set(win, pair, nil)
 		C.wattron(win, attr)

src/tui/tcell.go

@@ -35,7 +35,7 @@ type TcellWindow struct {
 	lastX       int
 	lastY       int
 	moveCursor  bool
-	border     bool
+	borderStyle BorderStyle
 }
 
 func (w *TcellWindow) Top() int {
@@ -61,8 +61,11 @@ func (w *TcellWindow) Refresh() {
 	}
 	w.lastX = 0
 	w.lastY = 0
-	if w.border {
-		w.drawBorder()
+	switch w.borderStyle {
+	case BorderAround:
+		w.drawBorder(true)
+	case BorderHorizontal:
+		w.drawBorder(false)
 	}
 }
 
@@ -377,7 +380,7 @@ func (r *FullscreenRenderer) RefreshWindows(windows []Window) {
 	_screen.Show()
 }
 
-func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, border bool) Window {
+func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window {
 	// TODO
 	return &TcellWindow{
 		color:       r.theme != nil,
@@ -385,7 +388,7 @@ func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int,
 		left:        left,
 		width:       width,
 		height:      height,
-		border: border}
+		borderStyle: borderStyle}
 }
 
 func (w *TcellWindow) Close() {
@@ -536,7 +539,7 @@ func (w *TcellWindow) CFill(fg Color, bg Color, a Attr, str string) FillReturn {
 	return w.fillString(str, ColorPair{fg, bg, -1}, a)
 }
 
-func (w *TcellWindow) drawBorder() {
+func (w *TcellWindow) drawBorder(around bool) {
 	left := w.left
 	right := left + w.width
 	top := w.top
@@ -554,6 +557,7 @@ func (w *TcellWindow) drawBorder() {
 		_screen.SetContent(x, bot-1, tcell.RuneHLine, nil, style)
 	}
 
+	if around {
 		for y := top; y < bot; y++ {
 			_screen.SetContent(left, y, tcell.RuneVLine, nil, style)
 			_screen.SetContent(right-1, y, tcell.RuneVLine, nil, style)
@@ -564,3 +568,4 @@ func (w *TcellWindow) drawBorder() {
 		_screen.SetContent(left, bot-1, tcell.RuneLLCorner, nil, style)
 		_screen.SetContent(right-1, bot-1, tcell.RuneLRCorner, nil, style)
 	}
+}

src/tui/tui.go

@@ -195,6 +195,14 @@ type MouseEvent struct {
 	Mod    bool
 }
 
+type BorderStyle int
+
+const (
+	BorderNone BorderStyle = iota
+	BorderAround
+	BorderHorizontal
+)
+
 type Renderer interface {
 	Init()
 	Pause()
@@ -211,7 +219,7 @@ type Renderer interface {
 	DoesAutoWrap() bool
 	IsOptimized() bool
 
-	NewWindow(top int, left int, width int, height int, border bool) Window
+	NewWindow(top int, left int, width int, height int, borderStyle BorderStyle) Window
 }
 
 type Window interface {

test/test_go.rb

@@ -617,6 +617,17 @@ class TestGoFZF < TestBase
     ], `#{FZF} -foo --tiebreak=begin,length < #{tempname}`.split($/)
   end
 
+  def test_tiebreak_begin_algo_v2
+    writelines tempname, [
+      'baz foo bar',
+      'foo bar baz',
+    ]
+    assert_equal [
+      'foo bar baz',
+      'baz foo bar',
+    ], `#{FZF} -fbar --tiebreak=begin --algo=v2 < #{tempname}`.split($/)
+  end
+
   def test_tiebreak_end
     writelines tempname, [
       'xoxxxxxxxx',
@@ -1543,7 +1554,7 @@ module CompletionTest
     tmux.prepare
 
     # Using tmux
-    tmux.send_keys 'unset FZFFOO**', :Tab
+    tmux.send_keys 'unset FZFFOOBR**', :Tab
     tmux.until { |lines| lines.match_count == 1 }
     tmux.send_keys :Enter
     tmux.until { |lines| lines[-1].include? 'unset FZFFOOBAR' }
@@ -1551,7 +1562,7 @@ module CompletionTest
 
     # FZF_TMUX=1
     new_shell
-    tmux.send_keys 'unset FZFFO**', :Tab, pane: 0
+    tmux.send_keys 'unset FZFFOOBR**', :Tab, pane: 0
     tmux.until(false, 1) { |lines| lines.match_count == 1 }
     tmux.send_keys :Enter
     tmux.until { |lines| lines[-1].include? 'unset FZFFOOBAR' }