0.31.0

Close #2690

.github/dependabot.yml

@@ -4,3 +4,7 @@ updates:
     directory: "/"
     schedule:
       interval: "weekly"
+  - package-ecosystem: "github-actions"
+    directory: "/"
+    schedule:
+        interval: "weekly"

.github/workflows/codeql-analysis.yml

@@ -8,8 +8,15 @@ on:
     branches: [ master ]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   analyze:
+    permissions:
+      actions: read  # for github/codeql-action/init to get workflow details
+      contents: read  # for actions/checkout to fetch code
+      security-events: write  # for github/codeql-action/autobuild to send a status report
     name: Analyze
     runs-on: ubuntu-latest
 
@@ -20,18 +27,18 @@ jobs:
 
     steps:
     - name: Checkout repository
-      uses: actions/checkout@v2
+      uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
       with:
         fetch-depth: 0
 
     # Initializes the CodeQL tools for scanning.
     - name: Initialize CodeQL
-      uses: github/codeql-action/init@v1
+      uses: github/codeql-action/init@1ed1437484560351c5be56cf73a48a279d116b78
       with:
         languages: ${{ matrix.language }}
 
     - name: Autobuild
-      uses: github/codeql-action/autobuild@v1
+      uses: github/codeql-action/autobuild@1ed1437484560351c5be56cf73a48a279d116b78
 
     - name: Perform CodeQL Analysis
-      uses: github/codeql-action/analyze@v1
+      uses: github/codeql-action/analyze@1ed1437484560351c5be56cf73a48a279d116b78

.github/workflows/linux.yml

@@ -8,24 +8,24 @@ on:
     branches: [ master ]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        go: [1.14, 1.16]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
       with:
         fetch-depth: 0
 
     - name: Set up Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@f6164bd8c8acb4a71fb2791a8b6c4024ff038dab # v2
       with:
-        go-version: ${{ matrix.go }}
+        go-version: 1.18
 
     - name: Setup Ruby
-      uses: ruby/setup-ruby@v1.62.0
+      uses: ruby/setup-ruby@ebaea52cb20fea395b0904125276395e37183dac
       with:
         ruby-version: 3.0.0
 

.github/workflows/macos.yml

@@ -8,24 +8,24 @@ on:
     branches: [ master ]
   workflow_dispatch:
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: macos-latest
-    strategy:
-      matrix:
-        go: [1.14, 1.16]
     steps:
-    - uses: actions/checkout@v2
+    - uses: actions/checkout@629c2de402a417ea7690ca6ce3f33229e27606a5 # v2
       with:
         fetch-depth: 0
 
     - name: Set up Go
-      uses: actions/setup-go@v2
+      uses: actions/setup-go@f6164bd8c8acb4a71fb2791a8b6c4024ff038dab # v2
       with:
-        go-version: ${{ matrix.go }}
+        go-version: 1.18
 
     - name: Setup Ruby
-      uses: ruby/setup-ruby@v1.62.0
+      uses: ruby/setup-ruby@ebaea52cb20fea395b0904125276395e37183dac
       with:
         ruby-version: 3.0.0
 

.tool-versions

@@ -0,0 +1 @@
+golang 1.18

ADVANCED.md

@@ -17,6 +17,7 @@ Advanced fzf examples
   * [Using fzf as the secondary filter](#using-fzf-as-the-secondary-filter)
   * [Using fzf as interative Ripgrep launcher](#using-fzf-as-interative-ripgrep-launcher)
   * [Switching to fzf-only search mode](#switching-to-fzf-only-search-mode)
+  * [Switching between Ripgrep mode and fzf mode](#switching-between-ripgrep-mode-and-fzf-mode)
 * [Log tailing](#log-tailing)
 * [Key bindings for git objects](#key-bindings-for-git-objects)
   * [Files listed in `git status`](#files-listed-in-git-status)
@@ -405,6 +406,40 @@ IFS=: read -ra selected < <(
 - We reverted `--color` option for customizing how the matching chunks are
   displayed in the second phase
 
+### Switching between Ripgrep mode and fzf mode
+
+*(Requires fzf 0.30.0 or above)*
+
+fzf 0.30.0 added `rebind` action so we can "rebind" the bindings that were
+previously "unbound" via `unbind`.
+
+This is an improved version of the previous example that allows us to switch
+between Ripgrep launcher mode and fzf-only filtering mode via CTRL-R and
+CTRL-F.
+
+```sh
+#!/usr/bin/env bash
+
+# Switch between Ripgrep launcher mode (CTRL-R) and fzf filtering mode (CTRL-F)
+RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+INITIAL_QUERY="${*:-}"
+IFS=: read -ra selected < <(
+  FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
+  fzf --ansi \
+      --color "hl:-1:underline,hl+:-1:underline:reverse" \
+      --disabled --query "$INITIAL_QUERY" \
+      --bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
+      --bind "ctrl-f:unbind(change,ctrl-f)+change-prompt(2. fzf> )+enable-search+clear-query+rebind(ctrl-r)" \
+      --bind "ctrl-r:unbind(ctrl-r)+change-prompt(1. ripgrep> )+disable-search+reload($RG_PREFIX {q} || true)+rebind(change,ctrl-f)" \
+      --prompt '1. Ripgrep> ' \
+      --delimiter : \
+      --header '╱ CTRL-R (Ripgrep mode) ╱ CTRL-F (fzf mode) ╱' \
+      --preview 'bat --color=always {1} --highlight-line {2}' \
+      --preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
+)
+[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
+```
+
 Log tailing
 -----------
 
@@ -429,30 +464,34 @@ Admittedly, that was a silly example. Here's a practical one for browsing
 Kubernetes pods.
 
 ```bash
-#!/usr/bin/env bash
+pods() {
-
+  FZF_DEFAULT_COMMAND="kubectl get pods --all-namespaces" \
-read -ra tokens < <(
+    fzf --info=inline --layout=reverse --header-lines=1 \
-  kubectl get pods --all-namespaces |
-    fzf --info=inline --layout=reverse --header-lines=1 --border \
         --prompt "$(kubectl config current-context | sed 's/-context$//')> " \
-        --header $'Press CTRL-O to open log in editor\n\n' \
+        --header $'╱ Enter (kubectl exec) ╱ CTRL-O (open log in editor) ╱ CTRL-R (reload) ╱\n\n' \
-        --bind ctrl-/:toggle-preview \
+        --bind 'ctrl-/:change-preview-window(80%,border-bottom|hidden|)' \
-        --bind 'ctrl-o:execute:${EDITOR:-vim} <(kubectl logs --namespace {1} {2}) > /dev/tty' \
+        --bind 'enter:execute:kubectl exec -it --namespace {1} {2} -- bash > /dev/tty' \
-        --preview-window up,follow \
+        --bind 'ctrl-o:execute:${EDITOR:-vim} <(kubectl logs --all-containers --namespace {1} {2}) > /dev/tty' \
-        --preview 'kubectl logs --follow --tail=100000 --namespace {1} {2}' "$@"
+        --bind 'ctrl-r:reload:$FZF_DEFAULT_COMMAND' \
-)
+        --preview-window up:follow \
-[ ${#tokens} -gt 1 ] &&
+        --preview 'kubectl logs --follow --all-containers --tail=10000 --namespace {1} {2}' "$@"
-  kubectl exec -it --namespace "${tokens[0]}" "${tokens[1]}" -- bash
+}
 ```
 
 ![image](https://user-images.githubusercontent.com/700826/113473547-1d7a4880-94a5-11eb-98ef-9aa6f0ed215a.png)
 
 - The preview window will *"log tail"* the pod
     - Holding on to a large amount of log will consume a lot of memory. So we
-      limited the initial log amount with `--tail=100000`.
+      limited the initial log amount with `--tail=10000`.
-- With `execute` binding, you can press CTRL-O to open the log in your editor
+- `execute` bindings allow you to run any command without leaving fzf
-  without leaving fzf
+    - Press enter key on a pod to `kubectl exec` into it
-- Select a pod (with an enter key) to `kubectl exec` into it
+    - Press CTRL-O to open the log in your editor
+- Press CTRL-R to reload the pod list
+- Press CTRL-/ repeatedly to to rotate through a different sets of preview
+  window options
+    1. `80%,border-bottom`
+    1. `hidden`
+    1. Empty string after `|` translates to the default options from `--preview-window`
 
 Key bindings for git objects
 ----------------------------

BUILD.md

@@ -6,7 +6,7 @@ Build instructions
 
 ### Prerequisites
 
-- Go 1.13 or above
+- Go 1.17 or above
 
 ### Using Makefile
 

CHANGELOG.md

@@ -1,6 +1,72 @@
 CHANGELOG
 =========
 
+0.31.0
+------
+- Added support for an alternative preview window layout that is activated
+  when the size of the preview window is smaller than a certain threshold.
+  ```sh
+  # If the width of the preview window is smaller than 50 columns,
+  # it will be displayed above the search window.
+  fzf --preview 'cat {}' --preview-window 'right,50%,border-left,<50(up,30%,border-bottom)'
+
+  # Or you can just hide it like so
+  fzf --preview 'cat {}' --preview-window '<50(hidden)'
+  ```
+- fzf now uses SGR mouse mode to properly support mouse on larger terminals
+- You can now use characters that do not satisfy `unicode.IsGraphic` constraint
+  for `--marker`, `--pointer`, and `--ellipsis`. Allows Nerd Fonts and stuff.
+  Use at your own risk.
+- Bug fixes and improvements
+- Shell extension
+    - `kill` completion now requires trigger sequence (`**`) for consistency
+
+0.30.0
+------
+- Fixed cursor flickering over the screen by hiding it during rendering
+- Added `--ellipsis` option. You can take advantage of it to make fzf
+  effectively search non-visible parts of the item.
+  ```sh
+  # Search against hidden line numbers on the far right
+  nl /usr/share/dict/words                  |
+    awk '{printf "%s%1000s\n", $2, $1}'     |
+    fzf --nth=-1 --no-hscroll --ellipsis='' |
+    awk '{print $2}'
+  ```
+- Added `rebind` action for restoring bindings after `unbind`
+- Bug fixes and improvements
+
+0.29.0
+------
+- Added `change-preview(...)` action to change the `--preview` command
+    - cf. `preview(...)` is a one-off action that doesn't change the default
+      preview command
+- Added `change-preview-window(...)` action
+    - You can rotate through the different options separated by `|`
+      ```sh
+      fzf --preview 'cat {}' --preview-window right:40% \
+          --bind 'ctrl-/:change-preview-window(right,70%|down,40%,border-top|hidden|)'
+      ```
+- Fixed rendering of the prompt line when overflow occurs with `--info=inline`
+
+0.28.0
+------
+- Added `--header-first` option to print header before the prompt line
+  ```sh
+  fzf --header $'Welcome to fzf\n▔▔▔▔▔▔▔▔▔▔▔▔▔▔' --reverse --height 30% --border --header-first
+  ```
+- Added `--scroll-off=LINES` option (similar to `scrolloff` option of Vim)
+    - You can set it to a very large number so that the cursor stays in the
+      middle of the screen while scrolling
+      ```sh
+      fzf --scroll-off=5
+      fzf --scroll-off=999
+      ```
+- Fixed bug where preview window is not updated on `reload` (#2644)
+- fzf on Windows will also use `$SHELL` to execute external programs
+    - See #2638 and #2647
+    - Thanks to @rashil2000, @vovcacik, and @janlazo
+
 0.27.3
 ------
 - Preview window is `hidden` by default when there are `preview` bindings but

Dockerfile

@@ -1,4 +1,4 @@
-FROM archlinux/base:latest
+FROM archlinux
 RUN pacman -Sy && pacman --noconfirm -S awk git tmux zsh fish ruby procps go make gcc
 RUN gem install --no-document -v 5.14.2 minitest
 RUN echo '. /usr/share/bash-completion/completions/git' >> ~/.bashrc

Makefile

@@ -35,6 +35,7 @@ BINARYARM7     := fzf-$(GOOS)_arm7
 BINARYARM8     := fzf-$(GOOS)_arm8
 BINARYPPC64LE  := fzf-$(GOOS)_ppc64le
 BINARYRISCV64  := fzf-$(GOOS)_riscv64
+BINARYLOONG64  := fzf-$(GOOS)_loong64
 
 # https://en.wikipedia.org/wiki/Uname
 UNAME_M := $(shell uname -m)
@@ -62,6 +63,8 @@ else ifeq ($(UNAME_M),ppc64le)
 	BINARY := $(BINARYPPC64LE)
 else ifeq ($(UNAME_M),riscv64)
 	BINARY := $(BINARYRISCV64)
+else ifeq ($(UNAME_M),loongarch64)
+	BINARY := $(BINARYLOONG64)
 else
 $(error Build on $(UNAME_M) is not supported, yet.)
 endif
@@ -102,6 +105,7 @@ endif
 	grep -qF $(VERSION) install.ps1
 
 	# Make release note out of CHANGELOG.md
+	mkdir -p tmp
 	sed -n '/^$(VERSION_REGEX)$$/,/^[0-9]/p' CHANGELOG.md | tail -r | \
 		sed '1,/^ *$$/d' | tail -r | sed 1,2d | tee tmp/release-note
 
@@ -147,6 +151,9 @@ target/$(BINARYPPC64LE): $(SOURCES)
 target/$(BINARYRISCV64): $(SOURCES)
 	GOARCH=riscv64 $(GO) build $(BUILD_FLAGS) -o $@
 
+target/$(BINARYLOONG64): $(SOURCES)
+	GOARCH=loong64 $(GO) build $(BUILD_FLAGS) -o $@
+
 bin/fzf: target/$(BINARY) | bin
 	cp -f target/$(BINARY) bin/fzf
 

README.md

@@ -86,7 +86,7 @@ stuff.
 
 ### Using Homebrew
 
-You can use [Homebrew](http://brew.sh/) (on macOS or Linux)
+You can use [Homebrew](https://brew.sh/) (on macOS or Linux)
 to install fzf.
 
 ```sh
@@ -131,6 +131,8 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 >
 > Refer to the package documentation for more information. (e.g. `apt-cache show fzf`)
 
+[![Packaging status](https://repology.org/badge/vertical-allrepos/fzf.svg)](https://repology.org/project/fzf/versions)
+
 ### Windows
 
 Pre-built binaries for Windows can be downloaded [here][bin]. fzf is also
@@ -380,12 +382,11 @@ cd ~/github/fzf**<TAB>
 
 #### Process IDs
 
-Fuzzy completion for PIDs is provided for kill command. In this case,
+Fuzzy completion for PIDs is provided for kill command.
-there is no trigger sequence; just press the tab key after the kill command.
 
 ```sh
 # Can select multiple processes with <TAB> or <Shift-TAB> keys
-kill -9 <TAB>
+kill -9 **<TAB>
 ```
 
 #### Host names
@@ -590,6 +591,9 @@ If ripgrep doesn't find any matches, it will exit with a non-zero exit status,
 and fzf will warn you about it. To suppress the warning message, we added
 `|| true` to the command, so that it always exits with 0.
 
+See ["Using fzf as interative Ripgrep launcher"](https://github.com/junegunn/fzf/blob/master/ADVANCED.md#using-fzf-as-interative-ripgrep-launcher)
+for a fuller example with preview window options.
+
 ### Preview window
 
 When the `--preview` option is set, fzf automatically starts an external process

go.mod

@@ -2,16 +2,20 @@ module github.com/junegunn/fzf
 
 require (
 	github.com/gdamore/tcell v1.4.0
-	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
 	github.com/mattn/go-isatty v0.0.14
 	github.com/mattn/go-runewidth v0.0.13
 	github.com/mattn/go-shellwords v1.0.12
 	github.com/rivo/uniseg v0.2.0
 	github.com/saracen/walker v0.1.2
-	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	golang.org/x/sys v0.0.0-20220406163625-3f8b81556e12
-	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
-	golang.org/x/term v0.0.0-20210317153231-de623e64d2a6
-	golang.org/x/text v0.3.6 // indirect
 )
 
-go 1.13
+require (
+	github.com/gdamore/encoding v1.0.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.2.0 // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c // indirect
+	golang.org/x/text v0.3.7 // indirect
+)
+
+go 1.17

go.sum

@@ -20,12 +20,13 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sys v0.0.0-20190626150813-e07cf5db2756/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
-golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/term v0.0.0-20210317153231-de623e64d2a6 h1:EC6+IGYTjPpRfv9a2b/6Puw0W+hLtAhkV1tPsXhutqs=
+golang.org/x/sys v0.0.0-20220406163625-3f8b81556e12 h1:QyVthZKMsyaQwBTJE04jdNN0Pp5Fn9Qga0mrgxyERQM=
-golang.org/x/term v0.0.0-20210317153231-de623e64d2a6/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
+golang.org/x/sys v0.0.0-20220406163625-3f8b81556e12/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 h1:JGgROgKl9N8DuW20oFS5gxc+lE67/N3FcwmBPMe7ArY=
+golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
-golang.org/x/text v0.3.6 h1:aRYxNxv6iGQlyVaZmk6ZgYEDa+Jg18DxebPSrd6bg1M=
+golang.org/x/text v0.3.7 h1:olpwvP2KacW1ZWvsR7uQhoyTYvKAupfQrRGBFM352Gk=
-golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=

install

@@ -2,7 +2,7 @@
 
 set -u
 
-version=0.27.3
+version=0.31.0
 auto_completion=
 key_bindings=
 update_config=2
@@ -256,7 +256,7 @@ for shell in $shells; do
 # Setup fzf
 # ---------
 if [[ ! "\$PATH" == *$fzf_base_esc/bin* ]]; then
-  export PATH="\${PATH:+\${PATH}:}$fzf_base/bin"
+  PATH="\${PATH:+\${PATH}:}$fzf_base/bin"
 fi
 
 # Auto-completion
@@ -280,11 +280,6 @@ EOF
   [ $? -eq 0 ] && echo "OK" || echo "Failed"
 
   mkdir -p "${fish_dir}/functions"
-  if [ -e "${fish_dir}/functions/fzf.fish" ]; then
-    echo -n "Remove unnecessary ${fish_dir}/functions/fzf.fish ... "
-    rm -f "${fish_dir}/functions/fzf.fish" && echo "OK" || echo "Failed"
-  fi
-
   fish_binding="${fish_dir}/functions/fzf_key_bindings.fish"
   if [ $key_bindings -ne 0 ]; then
     echo -n "Symlink $fish_binding ... "

install.ps1

@@ -1,4 +1,4 @@
-$version="0.27.3"
+$version="0.31.0"
 
 $fzf_base=Split-Path -Parent $MyInvocation.MyCommand.Definition
 

main.go

@@ -1,11 +1,11 @@
 package main
 
 import (
-	"github.com/junegunn/fzf/src"
+	fzf "github.com/junegunn/fzf/src"
 	"github.com/junegunn/fzf/src/protector"
 )
 
-var version string = "0.27"
+var version string = "0.31"
 var revision string = "devel"
 
 func main() {

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 "Oct 2021" "fzf 0.27.3" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Jul 2022" "fzf 0.31.0" "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 "Oct 2021" "fzf 0.27.3" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Jul 2022" "fzf 0.31.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -135,10 +135,14 @@ Enable cyclic scroll
 Keep the right end of the line visible when it's too long. Effective only when
 the query string is empty.
 .TP
+.BI "--scroll-off=" "LINES"
+Number of screen lines to keep above or below when scrolling to the top or to
+the bottom (default: 0).
+.TP
 .B "--no-hscroll"
 Disable horizontal scroll
 .TP
-.BI "--hscroll-off=" "COL"
+.BI "--hscroll-off=" "COLS"
 Number of screen columns to keep to the right of the highlighted substring
 (default: 10). Setting it to a large value will cause the text to be positioned
 on the center of the screen.
@@ -295,6 +299,12 @@ are not affected by \fB--with-nth\fR. ANSI color codes are processed even when
 The first N lines of the input are treated as the sticky header. When
 \fB--with-nth\fR is set, the lines are transformed just like the other
 lines that follow.
+.TP
+.B "--header-first"
+Print header before the prompt line
+.TP
+.BI "--ellipsis=" "STR"
+Ellipsis to show when line is truncated (default: '..')
 .SS Display
 .TP
 .B "--ansi"
@@ -440,7 +450,7 @@ e.g.
      \fB# Press CTRL-A to select 100K items and see the sum of all the numbers.
      # This won't work properly without 'f' flag due to ARG_MAX limit.
      seq 100000 | fzf --multi --bind ctrl-a:select-all \\
-                      --preview "awk '{sum+=\$1} END {print sum}' {+f}"\fR
+                      --preview "awk '{sum+=\\$1} END {print sum}' {+f}"\fR
 
 Note that you can escape a placeholder pattern by prepending a backslash.
 
@@ -460,7 +470,7 @@ e.g.
       done'\fR
 .RE
 .TP
-.BI "--preview-window=" "[POSITION][,SIZE[%]][,border-BORDER_OPT][,[no]wrap][,[no]follow][,[no]cycle][,[no]hidden][,+SCROLL[OFFSETS][/DENOM]][,~HEADER_LINES][,default]"
+.BI "--preview-window=" "[POSITION][,SIZE[%]][,border-BORDER_OPT][,[no]wrap][,[no]follow][,[no]cycle][,[no]hidden][,+SCROLL[OFFSETS][/DENOM]][,~HEADER_LINES][,default][,<SIZE_THRESHOLD(ALTERNATIVE_LAYOUT)]"
 
 .RS
 .B POSITION: (default: right)
@@ -478,9 +488,9 @@ default until \fBtoggle-preview\fR action is triggered.
 execute the command in the background.
 
 * Long lines are truncated by default. Line wrap can be enabled with
-\fB:wrap\fR flag.
+\fBwrap\fR flag.
 
-* Preview window will automatically scroll to the bottom when \fB:follow\fR
+* Preview window will automatically scroll to the bottom when \fBfollow\fR
 flag is set, similarly to how \fBtail -f\fR works.
 
 .RS
@@ -492,7 +502,7 @@ e.g.
       done'\fR
 .RE
 
-* Cyclic scrolling is enabled with \fB:cycle\fR flag.
+* Cyclic scrolling is enabled with \fBcycle\fR flag.
 
 * To change the style of the border of the preview window, specify one of
 the options for \fB--border\fR with \fBborder-\fR prefix.
@@ -542,6 +552,15 @@ e.g.
      fzf --preview 'bat --style=full --color=always {}' --preview-window '~3'\fR
 .RE
 
+* You can specify an alternative set of options that are used only when the size
+  of the preview window is below a certain threshold. Note that only one
+  alternative layout is allowed.
+
+.RS
+e.g.
+      \fBfzf --preview 'cat {}' --preview-window 'right,border-left,<30(up,30%,border-bottom)'\fR
+.RE
+
 .SS Scripting
 .TP
 .BI "-q, --query=" "STR"
@@ -803,76 +822,80 @@ e.g.
 A key or an event can be bound to one or more of the following actions.
 
   \fBACTION:                   DEFAULT BINDINGS (NOTES):
-    \fBabort\fR                     \fIctrl-c  ctrl-g  ctrl-q  esc\fR
+    \fBabort\fR                      \fIctrl-c  ctrl-g  ctrl-q  esc\fR
-    \fBaccept\fR                    \fIenter   double-click\fR
+    \fBaccept\fR                     \fIenter   double-click\fR
-    \fBaccept-non-empty\fR          (same as \fBaccept\fR except that it prevents fzf from exiting without selection)
+    \fBaccept-non-empty\fR           (same as \fBaccept\fR except that it prevents fzf from exiting without selection)
-    \fBbackward-char\fR             \fIctrl-b  left\fR
+    \fBbackward-char\fR              \fIctrl-b  left\fR
-    \fBbackward-delete-char\fR      \fIctrl-h  bspace\fR
+    \fBbackward-delete-char\fR       \fIctrl-h  bspace\fR
-    \fBbackward-delete-char/eof\fR  (same as \fBbackward-delete-char\fR except aborts fzf if query is empty)
+    \fBbackward-delete-char/eof\fR   (same as \fBbackward-delete-char\fR except aborts fzf if query is empty)
-    \fBbackward-kill-word\fR        \fIalt-bs\fR
+    \fBbackward-kill-word\fR         \fIalt-bs\fR
-    \fBbackward-word\fR             \fIalt-b   shift-left\fR
+    \fBbackward-word\fR              \fIalt-b   shift-left\fR
-    \fBbeginning-of-line\fR         \fIctrl-a  home\fR
+    \fBbeginning-of-line\fR          \fIctrl-a  home\fR
-    \fBcancel\fR                    (clear query string if not empty, abort fzf otherwise)
+    \fBcancel\fR                     (clear query string if not empty, abort fzf otherwise)
-    \fBchange-prompt(...)\fR        (change prompt to the given string)
+    \fBchange-preview(...)\fR        (change \fB--preview\fR option)
-    \fBclear-screen\fR              \fIctrl-l\fR
+    \fBchange-preview-window(...)\fR (change \fB--preview-window\fR option; rotate through the multiple option sets separated by '|')
-    \fBclear-selection\fR           (clear multi-selection)
+    \fBchange-prompt(...)\fR         (change prompt to the given string)
-    \fBclose\fR                     (close preview window if open, abort fzf otherwise)
+    \fBclear-screen\fR               \fIctrl-l\fR
-    \fBclear-query\fR               (clear query string)
+    \fBclear-selection\fR            (clear multi-selection)
-    \fBdelete-char\fR               \fIdel\fR
+    \fBclose\fR                      (close preview window if open, abort fzf otherwise)
-    \fBdelete-char/eof\fR           \fIctrl-d\fR (same as \fBdelete-char\fR except aborts fzf if query is empty)
+    \fBclear-query\fR                (clear query string)
+    \fBdelete-char\fR                \fIdel\fR
+    \fBdelete-char/eof\fR            \fIctrl-d\fR (same as \fBdelete-char\fR except aborts fzf if query is empty)
     \fBdeselect\fR
-    \fBdeselect-all\fR              (deselect all matches)
+    \fBdeselect-all\fR               (deselect all matches)
-    \fBdisable-search\fR            (disable search functionality)
+    \fBdisable-search\fR             (disable search functionality)
-    \fBdown\fR                      \fIctrl-j  ctrl-n  down\fR
+    \fBdown\fR                       \fIctrl-j  ctrl-n  down\fR
-    \fBenable-search\fR             (enable search functionality)
+    \fBenable-search\fR              (enable search functionality)
-    \fBend-of-line\fR               \fIctrl-e  end\fR
+    \fBend-of-line\fR                \fIctrl-e  end\fR
-    \fBexecute(...)\fR              (see below for the details)
+    \fBexecute(...)\fR               (see below for the details)
-    \fBexecute-silent(...)\fR       (see below for the details)
+    \fBexecute-silent(...)\fR        (see below for the details)
-    \fBfirst\fR                     (move to the first match)
+    \fBfirst\fR                      (move to the first match)
-    \fBforward-char\fR              \fIctrl-f  right\fR
+    \fBforward-char\fR               \fIctrl-f  right\fR
-    \fBforward-word\fR              \fIalt-f   shift-right\fR
+    \fBforward-word\fR               \fIalt-f   shift-right\fR
     \fBignore\fR
-    \fBjump\fR                      (EasyMotion-like 2-keystroke movement)
+    \fBjump\fR                       (EasyMotion-like 2-keystroke movement)
-    \fBjump-accept\fR               (jump and accept)
+    \fBjump-accept\fR                (jump and accept)
     \fBkill-line\fR
-    \fBkill-word\fR                 \fIalt-d\fR
+    \fBkill-word\fR                  \fIalt-d\fR
-    \fBlast\fR                      (move to the last match)
+    \fBlast\fR                       (move to the last match)
-    \fBnext-history\fR              (\fIctrl-n\fR on \fB--history\fR)
+    \fBnext-history\fR               (\fIctrl-n\fR on \fB--history\fR)
-    \fBpage-down\fR                 \fIpgdn\fR
+    \fBpage-down\fR                  \fIpgdn\fR
-    \fBpage-up\fR                   \fIpgup\fR
+    \fBpage-up\fR                    \fIpgup\fR
     \fBhalf-page-down\fR
     \fBhalf-page-up\fR
-    \fBpreview(...)\fR              (see below for the details)
+    \fBpreview(...)\fR               (see below for the details)
-    \fBpreview-down\fR              \fIshift-down\fR
+    \fBpreview-down\fR               \fIshift-down\fR
-    \fBpreview-up\fR                \fIshift-up\fR
+    \fBpreview-up\fR                 \fIshift-up\fR
     \fBpreview-page-down\fR
     \fBpreview-page-up\fR
     \fBpreview-half-page-down\fR
     \fBpreview-half-page-up\fR
     \fBpreview-bottom\fR
     \fBpreview-top\fR
-    \fBprevious-history\fR          (\fIctrl-p\fR on \fB--history\fR)
+    \fBprevious-history\fR           (\fIctrl-p\fR on \fB--history\fR)
-    \fBprint-query\fR               (print query and exit)
+    \fBprint-query\fR                (print query and exit)
+    \fBput\fR                        (put the character to the prompt)
     \fBrefresh-preview\fR
-    \fBreload(...)\fR               (see below for the details)
+    \fBrebind(...)\fR                (rebind bindings after \fBunbind\fR)
-    \fBreplace-query\fR             (replace query string with the current selection)
+    \fBreload(...)\fR                (see below for the details)
+    \fBreplace-query\fR              (replace query string with the current selection)
     \fBselect\fR
-    \fBselect-all\fR                (select all matches)
+    \fBselect-all\fR                 (select all matches)
-    \fBtoggle\fR                    (\fIright-click\fR)
+    \fBtoggle\fR                     (\fIright-click\fR)
-    \fBtoggle-all\fR                (toggle all matches)
+    \fBtoggle-all\fR                 (toggle all matches)
-    \fBtoggle+down\fR               \fIctrl-i  (tab)\fR
+    \fBtoggle+down\fR                \fIctrl-i  (tab)\fR
-    \fBtoggle-in\fR                 (\fB--layout=reverse*\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
+    \fBtoggle-in\fR                  (\fB--layout=reverse*\fR ? \fBtoggle+up\fR : \fBtoggle+down\fR)
-    \fBtoggle-out\fR                (\fB--layout=reverse*\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
+    \fBtoggle-out\fR                 (\fB--layout=reverse*\fR ? \fBtoggle+down\fR : \fBtoggle+up\fR)
     \fBtoggle-preview\fR
     \fBtoggle-preview-wrap\fR
-    \fBtoggle-search\fR             (toggle search functionality)
+    \fBtoggle-search\fR              (toggle search functionality)
     \fBtoggle-sort\fR
-    \fBtoggle+up\fR                 \fIbtab    (shift-tab)\fR
+    \fBtoggle+up\fR                  \fIbtab    (shift-tab)\fR
-    \fBunbind(...)\fR               (unbind bindings)
+    \fBunbind(...)\fR                (unbind bindings)
-    \fBunix-line-discard\fR         \fIctrl-u\fR
+    \fBunix-line-discard\fR          \fIctrl-u\fR
-    \fBunix-word-rubout\fR          \fIctrl-w\fR
+    \fBunix-word-rubout\fR           \fIctrl-w\fR
-    \fBup\fR                        \fIctrl-k  ctrl-p  up\fR
+    \fBup\fR                         \fIctrl-k  ctrl-p  up\fR
-    \fByank\fR                      \fIctrl-y\fR
+    \fByank\fR                       \fIctrl-y\fR
 
 .SS ACTION COMPOSITION
 
@@ -962,7 +985,6 @@ commands in addition to the default preview command given by \fB--preview\fR
 option.
 
 e.g.
-
      # Default preview command with an extra preview binding
      fzf --preview 'file {}' --bind '?:preview:cat {}'
 
@@ -973,6 +995,22 @@ e.g.
      # Preview window hidden by default, it appears when you first hit '?'
      fzf --bind '?:preview:cat {}' --preview-window hidden
 
+.SS CHANGE PREVIEW WINDOW ATTRIBUTES
+
+\fBchange-preview-window\fR action can be used to change the properties of the
+preview window. Unlike the \fB--preview-window\fR option, you can specify
+multiple sets of options separated by '|' characters.
+
+e.g.
+     # Rotate through the options using CTRL-/
+     fzf --preview 'cat {}' --bind 'ctrl-/:change-preview-window(right,70%|down,40%,border-horizontal|hidden|right)'
+
+     # The default properties given by `--preview-window` are inherited, so an empty string in the list is interpreted as the default
+     fzf --preview 'cat {}' --preview-window 'right,40%,border-left' --bind 'ctrl-/:change-preview-window(70%|down,border-top|hidden|)'
+
+     # This is equivalent to toggle-preview action
+     fzf --preview 'cat {}' --bind 'ctrl-/:change-preview-window(hidden|)'
+
 .SH AUTHOR
 Junegunn Choi (\fIjunegunn.c@gmail.com\fR)
 

plugin/fzf.vim

@@ -96,7 +96,12 @@ function! fzf#shellescape(arg, ...)
   if shell =~# 'cmd.exe$'
     return s:shellesc_cmd(a:arg)
   endif
-  return s:fzf_call('shellescape', a:arg)
+  try
+    let [shell, &shell] = [&shell, shell]
+    return s:fzf_call('shellescape', a:arg)
+  finally
+    let [shell, &shell] = [&shell, shell]
+  endtry
 endfunction
 
 function! s:fzf_getcwd()
@@ -159,7 +164,7 @@ function s:get_version(bin)
   if has_key(s:versions, a:bin)
     return s:versions[a:bin]
   end
-  let command = a:bin . ' --version --no-height'
+  let command = fzf#shellescape(a:bin) . ' --version --no-height'
   let output = systemlist(command)
   if v:shell_error || empty(output)
     return ''
@@ -444,6 +449,12 @@ function! s:use_sh()
   return [shell, shellslash, shellcmdflag, shellxquote]
 endfunction
 
+function! s:writefile(...)
+  if call('writefile', a:000) == -1
+    throw 'Failed to write temporary file. Check if you can write to the path tempname() returns.'
+  endif
+endfunction
+
 function! fzf#run(...) abort
 try
   let [shell, shellslash, shellcmdflag, shellxquote] = s:use_sh()
@@ -471,7 +482,7 @@ try
       let source_command = source
     elseif type == 3
       let temps.input = s:fzf_tempname()
-      call writefile(source, temps.input)
+      call s:writefile(source, temps.input)
       let source_command = (s:is_win ? 'type ' : 'cat ').fzf#shellescape(temps.input)
     else
       throw 'Invalid source type'
@@ -515,7 +526,7 @@ try
   call s:callback(dict, lines)
   return lines
 finally
-  if len(source_command)
+  if exists('source_command') && len(source_command)
     if len(prev_default_command)
       let $FZF_DEFAULT_COMMAND = prev_default_command
     else
@@ -660,7 +671,7 @@ function! s:execute(dict, command, use_height, temps) abort
   endif
   if s:is_win
     let batchfile = s:fzf_tempname().'.bat'
-    call writefile(s:wrap_cmds(command), batchfile)
+    call s:writefile(s:wrap_cmds(command), batchfile)
     let command = batchfile
     let a:temps.batchfile = batchfile
     if has('nvim')
@@ -678,7 +689,7 @@ function! s:execute(dict, command, use_height, temps) abort
     endif
   elseif has('win32unix') && $TERM !=# 'cygwin'
     let shellscript = s:fzf_tempname()
-    call writefile([command], shellscript)
+    call s:writefile([command], shellscript)
     let command = 'cmd.exe /C '.fzf#shellescape('set "TERM=" & start /WAIT sh -c '.shellscript)
     let a:temps.shellscript = shellscript
   endif
@@ -877,7 +888,7 @@ function! s:execute_term(dict, command, temps) abort
     call s:pushd(a:dict)
     if s:is_win
       let fzf.temps.batchfile = s:fzf_tempname().'.bat'
-      call writefile(s:wrap_cmds(a:command), fzf.temps.batchfile)
+      call s:writefile(s:wrap_cmds(a:command), fzf.temps.batchfile)
       let command = fzf.temps.batchfile
     else
       let command = a:command

shell/completion.bash

@@ -32,7 +32,7 @@ fi
 ###########################################################
 
 # To redraw line after fzf closes (printf '\e[5n')
-bind '"\e[0n": redraw-current-line'
+bind '"\e[0n": redraw-current-line' 2> /dev/null
 
 __fzf_comprun() {
   if [[ "$(type -t _fzf_comprun 2>&1)" = function ]]; then
@@ -260,14 +260,6 @@ _fzf_dir_completion() {
 }
 
 _fzf_complete_kill() {
-  local trigger=${FZF_COMPLETION_TRIGGER-'**'}
-  local cur="${COMP_WORDS[COMP_CWORD]}"
-  if [[ -z "$cur" ]]; then
-    COMP_WORDS[$COMP_CWORD]=$trigger
-  elif [[ "$cur" != *"$trigger" ]]; then
-    return 1
-  fi
-
   _fzf_proc_completion "$@"
 }
 
@@ -304,6 +296,10 @@ _fzf_alias_completion() {
 
 # fzf options
 complete -o default -F _fzf_opts_completion fzf
+# fzf-tmux is a thin fzf wrapper that has only a few more options than fzf
+# itself. As a quick improvement we take fzf's completion. Adding the few extra
+# fzf-tmux specific options (like `-w WIDTH`) are left as a future patch.
+complete -o default -F _fzf_opts_completion fzf-tmux
 
 d_cmds="${FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir}"
 a_cmds="
@@ -348,9 +344,6 @@ for cmd in $d_cmds; do
   __fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
 done
 
-# Kill completion (supports empty completion trigger)
-complete -F _fzf_complete_kill -o default -o bashdefault kill
-
 unset cmd d_cmds a_cmds
 
 _fzf_setup_completion() {
@@ -373,9 +366,10 @@ _fzf_setup_completion() {
   done
 }
 
-# Environment variables / Aliases / Hosts
+# Environment variables / Aliases / Hosts / Process
 _fzf_setup_completion 'var'   export unset
 _fzf_setup_completion 'alias' unalias
 _fzf_setup_completion 'host'  ssh telnet
+_fzf_setup_completion 'proc'  kill
 
 fi

shell/completion.zsh

@@ -285,12 +285,6 @@ fzf-completion() {
 
   lbuf=$LBUFFER
   tail=${LBUFFER:$(( ${#LBUFFER} - ${#trigger} ))}
-  # Kill completion (do not require trigger sequence)
-  if [ "$cmd" = kill -a ${LBUFFER[-1]} = ' ' ]; then
-    tail=$trigger
-    tokens+=$trigger
-    lbuf="$lbuf$trigger"
-  fi
 
   # Trigger sequence given
   if [ ${#tokens} -gt 1 -a "$tail" = "$trigger" ]; then

shell/key-bindings.bash

@@ -14,14 +14,17 @@
 # Key bindings
 # ------------
 __fzf_select__() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  local cmd opts
+  cmd="${FZF_CTRL_T_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | cut -b3-"}"
-  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS" $(__fzfcmd) -m "$@" | while read -r item; do
+  opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore --reverse $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS -m"
-    printf '%q ' "$item"
+  eval "$cmd" |
-  done
+    FZF_DEFAULT_OPTS="$opts" $(__fzfcmd) "$@" |
-  echo
+    while read -r item; do
+      printf '%q ' "$item"  # escape special chars
+    done
 }
 
 if [[ $- =~ i ]]; then
@@ -32,24 +35,27 @@ __fzfcmd() {
 }
 
 fzf-file-widget() {
-  local selected="$(__fzf_select__)"
+  local selected="$(__fzf_select__ "$@")"
   READLINE_LINE="${READLINE_LINE:0:$READLINE_POINT}$selected${READLINE_LINE:$READLINE_POINT}"
   READLINE_POINT=$(( READLINE_POINT + ${#selected} ))
 }
 
 __fzf_cd__() {
-  local cmd dir
+  local cmd opts dir
   cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
     -o -type d -print 2> /dev/null | cut -b3-"}"
-  dir=$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS" $(__fzfcmd) +m) && printf 'cd %q' "$dir"
+  opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore --reverse $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS +m"
+  dir=$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" $(__fzfcmd)) && printf 'builtin cd -- %q' "$dir"
 }
 
 __fzf_history__() {
-  local output
+  local output opts script
+  opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort $FZF_CTRL_R_OPTS +m --read0"
+  script='BEGIN { getc; $/ = "\n\t"; $HISTCOUNT = $ENV{last_hist} + 1 } s/^[ *]//; print $HISTCOUNT - $. . "\t$_" if !$seen{$_}++'
   output=$(
     builtin fc -lnr -2147483648 |
-      last_hist=$(HISTTIMEFORMAT='' builtin history 1) perl -n -l0 -e 'BEGIN { getc; $/ = "\n\t"; $HISTCMD = $ENV{last_hist} + 1 } s/^[ *]//; print $HISTCMD - $. . "\t$_" if !$seen{$_}++' |
+      last_hist=$(HISTTIMEFORMAT='' builtin history 1) perl -n -l0 -e "$script" |
-      FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS +m --read0" $(__fzfcmd) --query "$READLINE_LINE"
+      FZF_DEFAULT_OPTS="$opts" $(__fzfcmd) --query "$READLINE_LINE"
   ) || return
   READLINE_LINE=${output#*$'\t'}
   if [[ -z "$READLINE_POINT" ]]; then

shell/key-bindings.fish

@@ -87,7 +87,7 @@ function fzf_key_bindings
       eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)' +m --query "'$fzf_query'"' | read -l result
 
       if [ -n "$result" ]
-        cd $result
+        builtin cd -- $result
 
         # Remove last token from commandline.
         commandline -t ""

shell/key-bindings.zsh

@@ -65,8 +65,10 @@ fzf-file-widget() {
   zle reset-prompt
   return $ret
 }
-zle     -N   fzf-file-widget
+zle     -N            fzf-file-widget
-bindkey '^T' fzf-file-widget
+bindkey -M emacs '^T' fzf-file-widget
+bindkey -M vicmd '^T' fzf-file-widget
+bindkey -M viins '^T' fzf-file-widget
 
 # ALT-C - cd into the selected directory
 fzf-cd-widget() {
@@ -79,21 +81,23 @@ fzf-cd-widget() {
     return 0
   fi
   zle push-line # Clear buffer. Auto-restored on next prompt.
-  BUFFER="cd ${(q)dir}"
+  BUFFER="builtin cd -- ${(q)dir}"
   zle accept-line
   local ret=$?
   unset dir # ensure this doesn't end up appearing in prompt expansion
   zle reset-prompt
   return $ret
 }
-zle     -N    fzf-cd-widget
+zle     -N             fzf-cd-widget
-bindkey '\ec' fzf-cd-widget
+bindkey -M emacs '\ec' fzf-cd-widget
+bindkey -M vicmd '\ec' fzf-cd-widget
+bindkey -M viins '\ec' fzf-cd-widget
 
 # CTRL-R - Paste the selected command from history into the command line
 fzf-history-widget() {
   local selected num
   setopt localoptions noglobsubst noposixbuiltins pipefail no_aliases 2> /dev/null
-  selected=( $(fc -rl 1 | perl -ne 'print if !$seen{(/^\s*[0-9]+\**\s+(.*)/, $1)}++' |
+  selected=( $(fc -rl 1 | awk '{ cmd=$0; sub(/^\s*[0-9]+\**\s+/, "", cmd); if (!seen[cmd]++) print $0 }' |
     FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} $FZF_DEFAULT_OPTS -n2..,.. --tiebreak=index --bind=ctrl-r:toggle-sort,ctrl-z:ignore $FZF_CTRL_R_OPTS --query=${(qqq)LBUFFER} +m" $(__fzfcmd)) )
   local ret=$?
   if [ -n "$selected" ]; then
@@ -105,8 +109,10 @@ fzf-history-widget() {
   zle reset-prompt
   return $ret
 }
-zle     -N   fzf-history-widget
+zle     -N            fzf-history-widget
-bindkey '^R' fzf-history-widget
+bindkey -M emacs '^R' fzf-history-widget
+bindkey -M vicmd '^R' fzf-history-widget
+bindkey -M viins '^R' fzf-history-widget
 
 } always {
   eval $__fzf_key_bindings_options

src/core.go

@@ -242,9 +242,11 @@ func Run(opts *Options, version string, revision string) {
 	for {
 		delay := true
 		ticks++
-		input := func() []rune {
+		input := func(reloaded bool) []rune {
 			paused, input := terminal.Input()
-			if !paused {
+			if reloaded && paused {
+				query = []rune{}
+			} else if !paused {
 				query = input
 			}
 			return query
@@ -274,7 +276,8 @@ func Run(opts *Options, version string, revision string) {
 						opts.Sync = false
 						terminal.UpdateList(PassMerger(&snapshot, opts.Tac), false)
 					}
-					matcher.Reset(snapshot, input(), false, !reading, sort, clearCache())
+					reset := clearCache()
+					matcher.Reset(snapshot, input(reset), false, !reading, sort, reset)
 
 				case EvtSearchNew:
 					var command *string
@@ -293,7 +296,8 @@ func Run(opts *Options, version string, revision string) {
 						break
 					}
 					snapshot, _ := chunkList.Snapshot()
-					matcher.Reset(snapshot, input(), true, !reading, sort, clearCache())
+					reset := clearCache()
+					matcher.Reset(snapshot, input(reset), true, !reading, sort, reset)
 					delay = false
 
 				case EvtSearchProgress:

src/options.go

@@ -44,8 +44,10 @@ const usage = `usage: fzf [options]
     --bind=KEYBINDS       Custom key bindings. Refer to the man page.
     --cycle               Enable cyclic scroll
     --keep-right          Keep the right end of the line visible on overflow
+    --scroll-off=LINES    Number of screen lines to keep above or below when
+                          scrolling to the top or to the bottom (default: 0)
     --no-hscroll          Disable horizontal scroll
-    --hscroll-off=COL     Number of screen columns to keep to the right of the
+    --hscroll-off=COLS    Number of screen columns to keep to the right of the
                           highlighted substring (default: 10)
     --filepath-word       Make word-wise movements respect path separators
     --jump-labels=CHARS   Label characters for jump and jump-accept
@@ -67,6 +69,8 @@ const usage = `usage: fzf [options]
     --marker=STR          Multi-select marker (default: '>')
     --header=STR          String to print as header
     --header-lines=N      The first N lines of the input are treated as header
+    --header-first        Print header before the prompt line
+    --ellipsis=STR        Ellipsis to show when line is truncated (default: '..')
 
   Display
     --ansi                Enable processing of ANSI color codes
@@ -85,7 +89,7 @@ const usage = `usage: fzf [options]
                           [,[no]wrap][,[no]cycle][,[no]follow][,[no]hidden]
                           [,border-BORDER_OPT]
                           [,+SCROLL[OFFSETS][/DENOM]][,~HEADER_LINES]
-                          [,default]
+                          [,default][,<SIZE_THRESHOLD(ALTERNATIVE_LAYOUT)]
 
   Scripting
     -q, --query=STR       Start the finder with the given query
@@ -171,6 +175,18 @@ type previewOpts struct {
 	follow      bool
 	border      tui.BorderShape
 	headerLines int
+	threshold   int
+	alternative *previewOpts
+}
+
+func (a previewOpts) sameLayout(b previewOpts) bool {
+	return a.size == b.size && a.position == b.position && a.border == b.border && a.hidden == b.hidden && a.threshold == b.threshold &&
+		(a.alternative != nil && b.alternative != nil && a.alternative.sameLayout(*b.alternative) ||
+			a.alternative == nil && b.alternative == nil)
+}
+
+func (a previewOpts) sameContentLayout(b previewOpts) bool {
+	return a.wrap == b.wrap && a.headerLines == b.headerLines
 }
 
 // Options stores the values of command-line options
@@ -200,6 +216,7 @@ type Options struct {
 	KeepRight   bool
 	Hscroll     bool
 	HscrollOff  int
+	ScrollOff   int
 	FileWord    bool
 	InfoStyle   infoStyle
 	JumpLabels  string
@@ -212,7 +229,7 @@ type Options struct {
 	Filter      *string
 	ToggleSort  bool
 	Expect      map[tui.Event]string
-	Keymap      map[tui.Event][]action
+	Keymap      map[tui.Event][]*action
 	Preview     previewOpts
 	PrintQuery  bool
 	ReadZero    bool
@@ -222,6 +239,8 @@ type Options struct {
 	History     *History
 	Header      []string
 	HeaderLines int
+	HeaderFirst bool
+	Ellipsis    string
 	Margin      [4]sizeSpec
 	Padding     [4]sizeSpec
 	BorderShape tui.BorderShape
@@ -232,7 +251,7 @@ type Options struct {
 }
 
 func defaultPreviewOpts(command string) previewOpts {
-	return previewOpts{command, posRight, sizeSpec{50, true}, "", false, false, false, false, tui.BorderRounded, 0}
+	return previewOpts{command, posRight, sizeSpec{50, true}, "", false, false, false, false, tui.BorderRounded, 0, 0, nil}
 }
 
 func defaultOptions() *Options {
@@ -261,6 +280,7 @@ func defaultOptions() *Options {
 		KeepRight:   false,
 		Hscroll:     true,
 		HscrollOff:  10,
+		ScrollOff:   0,
 		FileWord:    false,
 		InfoStyle:   infoDefault,
 		JumpLabels:  defaultJumpLabels,
@@ -273,7 +293,7 @@ func defaultOptions() *Options {
 		Filter:      nil,
 		ToggleSort:  false,
 		Expect:      make(map[tui.Event]string),
-		Keymap:      make(map[tui.Event][]action),
+		Keymap:      make(map[tui.Event][]*action),
 		Preview:     defaultPreviewOpts(""),
 		PrintQuery:  false,
 		ReadZero:    false,
@@ -283,6 +303,8 @@ func defaultOptions() *Options {
 		History:     nil,
 		Header:      make([]string, 0),
 		HeaderLines: 0,
+		HeaderFirst: false,
+		Ellipsis:    "..",
 		Margin:      defaultMargin(),
 		Padding:     defaultMargin(),
 		Unicode:     true,
@@ -780,10 +802,10 @@ func init() {
 	// Backreferences are not supported.
 	// "~!@#$%^&*;/|".each_char.map { |c| Regexp.escape(c) }.map { |c| "#{c}[^#{c}]*#{c}" }.join('|')
 	executeRegexp = regexp.MustCompile(
-		`(?si)[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|unbind):.+|[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|unbind)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
+		`(?si)[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|change-preview-window|change-preview|(?:re|un)bind):.+|[:+](execute(?:-multi|-silent)?|reload|preview|change-prompt|change-preview-window|change-preview|(?:re|un)bind)(\([^)]*\)|\[[^\]]*\]|~[^~]*~|![^!]*!|@[^@]*@|\#[^\#]*\#|\$[^\$]*\$|%[^%]*%|\^[^\^]*\^|&[^&]*&|\*[^\*]*\*|;[^;]*;|/[^/]*/|\|[^\|]*\|)`)
 }
 
-func parseKeymap(keymap map[tui.Event][]action, str string) {
+func parseKeymap(keymap map[tui.Event][]*action, str string) {
 	masked := executeRegexp.ReplaceAllStringFunc(str, func(src string) string {
 		symbol := ":"
 		if strings.HasPrefix(src, "+") {
@@ -792,10 +814,16 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
 		prefix := symbol + "execute"
 		if strings.HasPrefix(src[1:], "reload") {
 			prefix = symbol + "reload"
+		} else if strings.HasPrefix(src[1:], "change-preview-window") {
+			prefix = symbol + "change-preview-window"
+		} else if strings.HasPrefix(src[1:], "change-preview") {
+			prefix = symbol + "change-preview"
 		} else if strings.HasPrefix(src[1:], "preview") {
 			prefix = symbol + "preview"
 		} else if strings.HasPrefix(src[1:], "unbind") {
 			prefix = symbol + "unbind"
+		} else if strings.HasPrefix(src[1:], "rebind") {
+			prefix = symbol + "rebind"
 		} else if strings.HasPrefix(src[1:], "change-prompt") {
 			prefix = symbol + "change-prompt"
 		} else if src[len(prefix)] == '-' {
@@ -835,7 +863,7 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
 
 		idx2 := len(pair[0]) + 1
 		specs := strings.Split(pair[1], "+")
-		actions := make([]action, 0, len(specs))
+		actions := make([]*action, 0, len(specs))
 		appendAction := func(types ...actionType) {
 			actions = append(actions, toActions(types...)...)
 		}
@@ -974,6 +1002,12 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
 				appendAction(actEnableSearch)
 			case "disable-search":
 				appendAction(actDisableSearch)
+			case "put":
+				if key.Type == tui.Rune && unicode.IsGraphic(key.Char) {
+					appendAction(actRune)
+				} else {
+					errorExit("unable to put non-printable character: " + pair[0])
+				}
 			default:
 				t := isExecuteAction(specLower)
 				if t == actIgnore {
@@ -989,10 +1023,16 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
 						offset = len("reload")
 					case actPreview:
 						offset = len("preview")
+					case actChangePreviewWindow:
+						offset = len("change-preview-window")
+					case actChangePreview:
+						offset = len("change-preview")
 					case actChangePrompt:
 						offset = len("change-prompt")
 					case actUnbind:
 						offset = len("unbind")
+					case actRebind:
+						offset = len("rebind")
 					case actExecuteSilent:
 						offset = len("execute-silent")
 					case actExecuteMulti:
@@ -1004,17 +1044,22 @@ func parseKeymap(keymap map[tui.Event][]action, str string) {
 					if spec[offset] == ':' {
 						if specIndex == len(specs)-1 {
 							actionArg = spec[offset+1:]
-							actions = append(actions, action{t: t, a: actionArg})
+							actions = append(actions, &action{t: t, a: actionArg})
 						} else {
 							prevSpec = spec + "+"
 							continue
 						}
 					} else {
 						actionArg = spec[offset+1 : len(spec)-1]
-						actions = append(actions, action{t: t, a: actionArg})
+						actions = append(actions, &action{t: t, a: actionArg})
 					}
-					if t == actUnbind {
+					if t == actUnbind || t == actRebind {
-						parseKeyChords(actionArg, "unbind target required")
+						parseKeyChords(actionArg, spec[0:offset]+" target required")
+					} else if t == actChangePreviewWindow {
+						opts := previewOpts{}
+						for _, arg := range strings.Split(actionArg, "|") {
+							parsePreviewWindow(&opts, arg)
+						}
 					}
 				}
 			}
@@ -1038,8 +1083,14 @@ func isExecuteAction(str string) actionType {
 		return actReload
 	case "unbind":
 		return actUnbind
+	case "rebind":
+		return actRebind
 	case "preview":
 		return actPreview
+	case "change-preview-window":
+		return actChangePreviewWindow
+	case "change-preview":
+		return actChangePreview
 	case "change-prompt":
 		return actChangePrompt
 	case "execute":
@@ -1052,7 +1103,7 @@ func isExecuteAction(str string) actionType {
 	return actIgnore
 }
 
-func parseToggleSort(keymap map[tui.Event][]action, str string) {
+func parseToggleSort(keymap map[tui.Event][]*action, str string) {
 	keys := parseKeyChords(str, "key name required")
 	if len(keys) != 1 {
 		errorExit("multiple keys specified")
@@ -1122,12 +1173,19 @@ func parseInfoStyle(str string) infoStyle {
 }
 
 func parsePreviewWindow(opts *previewOpts, input string) {
-	delimRegex := regexp.MustCompile("[:,]") // : for backward compatibility
+	tokenRegex := regexp.MustCompile(`[:,]*(<([1-9][0-9]*)\(([^)<]+)\)|[^,:]+)`)
 	sizeRegex := regexp.MustCompile("^[0-9]+%?$")
 	offsetRegex := regexp.MustCompile(`^(\+{-?[0-9]+})?([+-][0-9]+)*(-?/[1-9][0-9]*)?$`)
 	headerRegex := regexp.MustCompile("^~(0|[1-9][0-9]*)$")
-	tokens := delimRegex.Split(input, -1)
+	tokens := tokenRegex.FindAllStringSubmatch(input, -1)
-	for _, token := range tokens {
+	var alternative string
+	for _, match := range tokens {
+		if len(match[2]) > 0 {
+			opts.threshold = atoi(match[2])
+			alternative = match[3]
+			continue
+		}
+		token := match[1]
 		switch token {
 		case "":
 		case "default":
@@ -1186,6 +1244,13 @@ func parsePreviewWindow(opts *previewOpts, input string) {
 			}
 		}
 	}
+	if len(alternative) > 0 {
+		alternativeOpts := *opts
+		opts.alternative = &alternativeOpts
+		opts.alternative.hidden = false
+		opts.alternative.alternative = nil
+		parsePreviewWindow(opts.alternative, alternative)
+	}
 }
 
 func parseMargin(opt string, margin string) [4]sizeSpec {
@@ -1354,6 +1419,8 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Hscroll = false
 		case "--hscroll-off":
 			opts.HscrollOff = nextInt(allArgs, &i, "hscroll offset required")
+		case "--scroll-off":
+			opts.ScrollOff = nextInt(allArgs, &i, "scroll offset required")
 		case "--filepath-word":
 			opts.FileWord = true
 		case "--no-filepath-word":
@@ -1421,6 +1488,12 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--header-lines":
 			opts.HeaderLines = atoi(
 				nextString(allArgs, &i, "number of header lines required"))
+		case "--header-first":
+			opts.HeaderFirst = true
+		case "--no-header-first":
+			opts.HeaderFirst = false
+		case "--ellipsis":
+			opts.Ellipsis = nextString(allArgs, &i, "ellipsis string required")
 		case "--preview":
 			opts.Preview.command = nextString(allArgs, &i, "preview command required")
 		case "--no-preview":
@@ -1518,6 +1591,8 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.Header = strLines(value)
 			} else if match, value := optString(arg, "--header-lines="); match {
 				opts.HeaderLines = atoi(value)
+			} else if match, value := optString(arg, "--ellipsis="); match {
+				opts.Ellipsis = value
 			} else if match, value := optString(arg, "--preview="); match {
 				opts.Preview.command = value
 			} else if match, value := optString(arg, "--preview-window="); match {
@@ -1530,6 +1605,8 @@ func parseOptions(opts *Options, allArgs []string) {
 				opts.Tabstop = atoi(value)
 			} else if match, value := optString(arg, "--hscroll-off="); match {
 				opts.HscrollOff = atoi(value)
+			} else if match, value := optString(arg, "--scroll-off="); match {
+				opts.ScrollOff = atoi(value)
 			} else if match, value := optString(arg, "--jump-labels="); match {
 				opts.JumpLabels = value
 				validateJumpLabels = true
@@ -1547,6 +1624,10 @@ func parseOptions(opts *Options, allArgs []string) {
 		errorExit("hscroll offset must be a non-negative integer")
 	}
 
+	if opts.ScrollOff < 0 {
+		errorExit("scroll offset must be a non-negative integer")
+	}
+
 	if opts.Tabstop < 1 {
 		errorExit("tab stop must be a positive integer")
 	}
@@ -1580,11 +1661,6 @@ func validateSign(sign string, signOptName string) error {
 	if sign == "" {
 		return fmt.Errorf("%v cannot be empty", signOptName)
 	}
-	for _, r := range sign {
-		if !unicode.IsGraphic(r) {
-			return fmt.Errorf("invalid character in %v", signOptName)
-		}
-	}
 	if runewidth.StringWidth(sign) > 2 {
 		return fmt.Errorf("%v display width should be up to 2", signOptName)
 	}
@@ -1608,11 +1684,29 @@ func postProcessOptions(opts *Options) {
 	// Extend the default key map
 	keymap := defaultKeymap()
 	for key, actions := range opts.Keymap {
+		var lastChangePreviewWindow *action
 		for _, act := range actions {
-			if act.t == actToggleSort {
+			switch act.t {
+			case actToggleSort:
+				// To display "+S"/"-S" on info line
 				opts.ToggleSort = true
+			case actChangePreviewWindow:
+				lastChangePreviewWindow = act
 			}
 		}
+		// Re-organize actions so that we only keep the last change-preview-window
+		// and it comes first in the list.
+		//  *  change-preview-window(up,+10)+preview(sleep 3; cat {})+change-preview-window(up,+20)
+		//  -> change-preview-window(up,+20)+preview(sleep 3; cat {})
+		if lastChangePreviewWindow != nil {
+			reordered := []*action{lastChangePreviewWindow}
+			for _, act := range actions {
+				if act.t != actChangePreviewWindow {
+					reordered = append(reordered, act)
+				}
+			}
+			actions = reordered
+		}
 		keymap[key] = actions
 	}
 	opts.Keymap = keymap
@@ -1652,6 +1746,13 @@ func postProcessOptions(opts *Options) {
 func ParseOptions() *Options {
 	opts := defaultOptions()
 
+	for _, arg := range os.Args[1:] {
+		if arg == "--version" {
+			opts.Version = true
+			return opts
+		}
+	}
+
 	// Options from Env var
 	words, _ := shellwords.Parse(os.Getenv("FZF_DEFAULT_OPTS"))
 	if len(words) > 0 {

src/options_test.go

@@ -65,6 +65,19 @@ func TestDelimiterRegexRegex(t *testing.T) {
 	}
 }
 
+func TestDelimiterRegexRegexCaret(t *testing.T) {
+	delim := delimiterRegexp(`(^\s*|\s+)`)
+	tokens := Tokenize("foo  bar baz", delim)
+	if delim.str != nil ||
+		len(tokens) != 4 ||
+		tokens[0].text.ToString() != "" ||
+		tokens[1].text.ToString() != "foo  " ||
+		tokens[2].text.ToString() != "bar " ||
+		tokens[3].text.ToString() != "baz" {
+		t.Errorf("%s %d", tokens, len(tokens))
+	}
+}
+
 func TestSplitNth(t *testing.T) {
 	{
 		ranges := splitNth("..")
@@ -440,8 +453,6 @@ func TestValidateSign(t *testing.T) {
 		{"😀", true},
 		{"", false},
 		{">>>", false},
-		{"\n", false},
-		{"\t", false},
 	}
 
 	for _, testCase := range testCases {

src/protector/protector.go

@@ -1,4 +1,4 @@
-// +build !openbsd
+//go:build !openbsd
 
 package protector
 

src/protector/protector_openbsd.go

@@ -1,4 +1,4 @@
-// +build openbsd
+//go:build openbsd
 
 package protector
 

src/result_others.go

@@ -1,4 +1,4 @@
-// +build !386,!amd64
+//go:build !386 && !amd64
 
 package fzf
 

src/result_test.go

@@ -1,5 +1,3 @@
-// +build !tcell
-
 package fzf
 
 import (

src/result_x86.go

@@ -1,4 +1,4 @@
-// +build 386 amd64
+//go:build 386 || amd64
 
 package fzf
 

src/terminal_test.go

@@ -288,6 +288,7 @@ func TestUnixCommands(t *testing.T) {
 		{give{`grep {} ~/test`, ``, newItems(`~`)}, want{output: `grep '~' ~/test`}},
 
 		// 2) problematic examples
+		// (not necessarily unexpected)
 
 		// paths that need to expand some part of it won't work (special characters and variables)
 		{give{`cat {}`, ``, newItems(`~/test`)}, want{output: `cat '~/test'`}},
@@ -315,6 +316,7 @@ func TestWindowsCommands(t *testing.T) {
 		{give{`rg -- {}`, ``, newItems(`"C:\test.txt"`)}, want{output: `rg -- ^"\^"C:\\test.txt\^"^"`}},
 
 		// 2) problematic examples
+		// (not necessarily unexpected)
 
 		// notepad++'s parser can't handle `-n"12"` generate by fzf, expects `-n12`
 		{give{`notepad++ -n{1} {2}`, ``, newItems(`12	C:\Work\Test Folder\File.txt`)}, want{output: `notepad++ -n^"12^" ^"C:\\Work\\Test Folder\\File.txt^"`}},
@@ -327,11 +329,97 @@ func TestWindowsCommands(t *testing.T) {
 
 		// the "file" flag in the pattern won't create *.bat or *.cmd file so the command in the output tries to edit the file, instead of executing it
 		// the temp file contains: `cat "C:\test.txt"`
+		// TODO this should actually work
 		{give{`cmd /c {f}`, ``, newItems(`cat "C:\test.txt"`)}, want{match: `^cmd /c .*\fzf-preview-[0-9]{9}$`}},
 	}
 	testCommands(t, tests)
 }
 
+// purpose of this test is to demonstrate some shortcomings of fzf's templating system on Windows in Powershell
+func TestPowershellCommands(t *testing.T) {
+	if !util.IsWindows() {
+		t.SkipNow()
+	}
+
+	tests := []testCase{
+		// reference: give{template, query, items}, want{output OR match}
+
+		/*
+			You can read each line in the following table as a pipeline that
+			consist of series of parsers that act upon your input (col. 1) and
+			each cell represents the output value.
+
+			For example:
+			 - exec.Command("program.exe", `\''`)
+			   - goes to win32 api which will process it transparently as it contains no special characters, see [CommandLineToArgvW][].
+			     - powershell command will receive it as is, that is two arguments: a literal backslash and empty string in single quotes
+			     - native command run via/from powershell will receive only one argument: a literal backslash. Because extra parsing rules apply, see [NativeCallsFromPowershell][].
+			       - some¹ apps have internal parser, that requires one more level of escaping (yes, this is completely application-specific, but see terminal_test.go#TestWindowsCommands)
+
+			Character⁰   CommandLineToArgvW   Powershell commands              Native commands from Powershell   Apps requiring escapes¹    | Being tested below
+			----------   ------------------   ------------------------------   -------------------------------   -------------------------- | ------------------
+			"            empty string²        missing argument error           ...                               ...                        |
+			\"           literal "            unbalanced quote error           ...                               ...                        |
+			'\"'         literal '"'          literal "                        empty string                      empty string (match all)   | yes
+			'\\\"'       literal '\"'         literal \"                       literal "                         literal "                  |
+			----------   ------------------   ------------------------------   -------------------------------   -------------------------- | ------------------
+			\            transparent          transparent                      transparent                       regex error                |
+			'\'          transparent          literal \                        literal \                         regex error                | yes
+			\\           transparent          transparent                      transparent                       literal \                  |
+			'\\'         transparent          literal \\                       literal \\                        literal \                  |
+			----------   ------------------   ------------------------------   -------------------------------   -------------------------- | ------------------
+			'            transparent          unbalanced quote error           ...                               ...                        |
+			\'           transparent          literal \ and unb. quote error   ...                               ...                        |
+			\''          transparent          literal \ and empty string       literal \                         regex error                | no, but given as example above
+			'''          transparent          unbalanced quote error           ...                               ...                        |
+			''''         transparent          literal '                        literal '                         literal '                  | yes
+			----------   ------------------   ------------------------------   -------------------------------   -------------------------- | ------------------
+
+			⁰: charatecter or characters 'x' as an argument to a program in go's call: exec.Command("program.exe", `x`)
+			¹: native commands like grep, git grep, ripgrep
+			²: interpreted as a grouping quote, affects argument parser and gets removed from the result
+
+			[CommandLineToArgvW]: https://docs.microsoft.com/en-gb/windows/win32/api/shellapi/nf-shellapi-commandlinetoargvw#remarks
+			[NativeCallsFromPowershell]: https://docs.microsoft.com/en-us/powershell/module/microsoft.powershell.core/about/about_parsing?view=powershell-7.1#passing-arguments-that-contain-quote-characters
+		*/
+
+		// 1) working examples
+
+		{give{`Get-Content {}`, ``, newItems(`C:\test.txt`)}, want{output: `Get-Content 'C:\test.txt'`}},
+		{give{`rg -- "package" {}`, ``, newItems(`.\test.go`)}, want{output: `rg -- "package" '.\test.go'`}},
+
+		// example of escaping single quotes
+		{give{`rg -- {}`, ``, newItems(`'foobar'`)}, want{output: `rg -- '''foobar'''`}},
+
+		// chaining powershells
+		{give{`powershell -NoProfile -Command {}`, ``, newItems(`cat "C:\test.txt"`)}, want{output: `powershell -NoProfile -Command 'cat \"C:\test.txt\"'`}},
+
+		// 2) problematic examples
+		// (not necessarily unexpected)
+
+		// looking for a path string will only work with escaped backslashes
+		{give{`rg -- {}`, ``, newItems(`C:\test.txt`)}, want{output: `rg -- 'C:\test.txt'`}},
+		// looking for a literal double quote will only work with triple escaped double quotes
+		{give{`rg -- {}`, ``, newItems(`"C:\test.txt"`)}, want{output: `rg -- '\"C:\test.txt\"'`}},
+
+		// Get-Content (i.e. cat alias) is parsing `"` as a part of the file path, returns an error:
+		// Get-Content : Cannot find drive. A drive with the name '"C:' does not exist.
+		{give{`cat {}`, ``, newItems(`"C:\test.txt"`)}, want{output: `cat '\"C:\test.txt\"'`}},
+
+		// the "file" flag in the pattern won't create *.ps1 file so the powershell will offload this "unknown" filetype
+		// to explorer, which will prompt user to pick editing program for the fzf-preview file
+		// the temp file contains: `cat "C:\test.txt"`
+		// TODO this should actually work
+		{give{`powershell -NoProfile -Command {f}`, ``, newItems(`cat "C:\test.txt"`)}, want{match: `^powershell -NoProfile -Command .*\fzf-preview-[0-9]{9}$`}},
+	}
+
+	// to force powershell-style escaping we temporarily set environment variable that fzf honors
+	shellBackup := os.Getenv("SHELL")
+	os.Setenv("SHELL", "powershell")
+	testCommands(t, tests)
+	os.Setenv("SHELL", shellBackup)
+}
+
 /*
 	Test typical valid placeholders and parsing of them.
 

src/terminal_unix.go

@@ -1,4 +1,4 @@
-// +build !windows
+//go:build !windows
 
 package fzf
 

src/terminal_windows.go

@@ -1,4 +1,4 @@
-// +build windows
+//go:build windows
 
 package fzf
 
@@ -21,10 +21,25 @@ func notifyOnCont(resizeChan chan<- os.Signal) {
 }
 
 func quoteEntry(entry string) string {
-	escaped := strings.Replace(entry, `\`, `\\`, -1)
+	shell := os.Getenv("SHELL")
-	escaped = `"` + strings.Replace(escaped, `"`, `\"`, -1) + `"`
+	if len(shell) == 0 {
-	r, _ := regexp.Compile(`[&|<>()@^%!"]`)
+		shell = "cmd"
-	return r.ReplaceAllStringFunc(escaped, func(match string) string {
+	}
-		return "^" + match
+
-	})
+	if strings.Contains(shell, "cmd") {
+		// backslash escaping is done here for applications
+		// (see ripgrep test case in terminal_test.go#TestWindowsCommands)
+		escaped := strings.Replace(entry, `\`, `\\`, -1)
+		escaped = `"` + strings.Replace(escaped, `"`, `\"`, -1) + `"`
+		// caret is the escape character for cmd shell
+		r, _ := regexp.Compile(`[&|<>()@^%!"]`)
+		return r.ReplaceAllStringFunc(escaped, func(match string) string {
+			return "^" + match
+		})
+	} else if strings.Contains(shell, "pwsh") || strings.Contains(shell, "powershell") {
+		escaped := strings.Replace(entry, `"`, `\"`, -1)
+		return "'" + strings.Replace(escaped, "'", "''", -1) + "'"
+	} else {
+		return "'" + strings.Replace(entry, "'", "'\\''", -1) + "'"
+	}
 }

src/tokenizer.go

@@ -156,14 +156,14 @@ func Tokenize(text string, delimiter Delimiter) []Token {
 	// FIXME performance
 	var tokens []string
 	if delimiter.regex != nil {
-		for len(text) > 0 {
+		locs := delimiter.regex.FindAllStringIndex(text, -1)
-			loc := delimiter.regex.FindStringIndex(text)
+		begin := 0
-			if len(loc) < 2 {
+		for _, loc := range locs {
-				loc = []int{0, len(text)}
+			tokens = append(tokens, text[begin:loc[1]])
-			}
+			begin = loc[1]
-			last := util.Max(loc[1], 1)
+		}
-			tokens = append(tokens, text[:last])
+		if begin < len(text) {
-			text = text[last:]
+			tokens = append(tokens, text[begin:])
 		}
 	}
 	return withPrefixLengths(tokens, 0)

src/tui/dummy.go

@@ -1,6 +1,4 @@
-// +build !ncurses
+//go:build !tcell && !windows
-// +build !tcell
-// +build !windows
 
 package tui
 

src/tui/light.go

@@ -23,7 +23,7 @@ const (
 	defaultEscDelay = 100
 	escPollInterval = 5
 	offsetPollTries = 10
-	maxInputBuffer  = 10 * 1024
+	maxInputBuffer  = 1024 * 1024
 )
 
 const consoleDevice string = "/dev/tty"
@@ -60,7 +60,7 @@ func (r *LightRenderer) csi(code string) {
 
 func (r *LightRenderer) flush() {
 	if r.queued.Len() > 0 {
-		fmt.Fprint(os.Stderr, r.queued.String())
+		fmt.Fprint(os.Stderr, "\x1b[?25l"+r.queued.String()+"\x1b[?25h")
 		r.queued.Reset()
 	}
 }
@@ -176,6 +176,7 @@ func (r *LightRenderer) Init() {
 
 	if r.mouse {
 		r.csi("?1000h")
+		r.csi("?1006h")
 	}
 	r.csi(fmt.Sprintf("%dA", r.MaxY()-1))
 	r.csi("G")
@@ -378,7 +379,7 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 			return Event{Home, 0, nil}
 		case 'F':
 			return Event{End, 0, nil}
-		case 'M':
+		case '<':
 			return r.mouseSequence(sz)
 		case 'P':
 			return Event{F1, 0, nil}
@@ -519,47 +520,73 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 	return Event{Invalid, 0, nil}
 }
 
+// https://invisible-island.net/xterm/ctlseqs/ctlseqs.html#h2-Mouse-Tracking
 func (r *LightRenderer) mouseSequence(sz *int) Event {
-	if len(r.buffer) < 6 || !r.mouse {
+	// "\e[<0;0;0M"
+	if len(r.buffer) < 9 || !r.mouse {
 		return Event{Invalid, 0, nil}
 	}
-	*sz = 6
-	switch r.buffer[3] {
-	case 32, 34, 36, 40, 48, // mouse-down / shift / cmd / ctrl
-		35, 39, 43, 51: // mouse-up / shift / cmd / ctrl
-		mod := r.buffer[3] >= 36
-		left := r.buffer[3] == 32
-		down := r.buffer[3]%2 == 0
-		x := int(r.buffer[4] - 33)
-		y := int(r.buffer[5]-33) - r.yoffset
-		double := false
-		if down {
-			now := time.Now()
-			if !left { // Right double click is not allowed
-				r.clickY = []int{}
-			} else if now.Sub(r.prevDownTime) < doubleClickDuration {
-				r.clickY = append(r.clickY, y)
-			} else {
-				r.clickY = []int{y}
-			}
-			r.prevDownTime = now
-		} else {
-			if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
-				time.Since(r.prevDownTime) < doubleClickDuration {
-				double = true
-			}
-		}
 
-		return Event{Mouse, 0, &MouseEvent{y, x, 0, left, down, double, mod}}
+	rest := r.buffer[*sz:]
-	case 96, 100, 104, 112, // scroll-up / shift / cmd / ctrl
+	end := bytes.IndexAny(rest, "mM")
-		97, 101, 105, 113: // scroll-down / shift / cmd / ctrl
+	if end == -1 {
-		mod := r.buffer[3] >= 100
+		return Event{Invalid, 0, nil}
-		s := 1 - int(r.buffer[3]%2)*2
-		x := int(r.buffer[4] - 33)
-		y := int(r.buffer[5]-33) - r.yoffset
-		return Event{Mouse, 0, &MouseEvent{y, x, s, false, false, false, mod}}
 	}
-	return Event{Invalid, 0, nil}
+
+	elems := strings.SplitN(string(rest[:end]), ";", 3)
+	if len(elems) != 3 {
+		return Event{Invalid, 0, nil}
+	}
+
+	t := atoi(elems[0], -1)
+	x := atoi(elems[1], -1) - 1
+	y := atoi(elems[2], -1) - 1
+	if t < 0 || x < 0 || y < 0 {
+		return Event{Invalid, 0, nil}
+	}
+	*sz += end + 1
+
+	down := rest[end] == 'M'
+
+	scroll := 0
+	if t >= 64 {
+		t -= 64
+		if t&0b1 == 1 {
+			scroll = -1
+		} else {
+			scroll = 1
+		}
+	}
+
+	// middle := t & 0b1
+	left := t&0b11 == 0
+
+	// shift := t & 0b100
+	// ctrl := t & 0b1000
+	mod := t&0b1100 > 0
+
+	if scroll != 0 {
+		return Event{Mouse, 0, &MouseEvent{y, x, scroll, false, false, false, mod}}
+	}
+
+	double := false
+	if down {
+		now := time.Now()
+		if !left { // Right double click is not allowed
+			r.clickY = []int{}
+		} else if now.Sub(r.prevDownTime) < doubleClickDuration {
+			r.clickY = append(r.clickY, y)
+		} else {
+			r.clickY = []int{y}
+		}
+		r.prevDownTime = now
+	} else {
+		if len(r.clickY) > 1 && r.clickY[0] == r.clickY[1] &&
+			time.Since(r.prevDownTime) < doubleClickDuration {
+			double = true
+		}
+	}
+	return Event{Mouse, 0, &MouseEvent{y, x, 0, left, down, double, mod}}
 }
 
 func (r *LightRenderer) smcup() {
@@ -597,6 +624,7 @@ func (r *LightRenderer) Resume(clear bool, sigcont bool) {
 		// It's highly likely that the offset we obtained at the beginning is
 		// no longer correct, so we simply disable mouse input.
 		r.csi("?1000l")
+		r.csi("?1006l")
 		r.mouse = false
 	}
 }
@@ -636,6 +664,7 @@ func (r *LightRenderer) Close() {
 	}
 	if r.mouse {
 		r.csi("?1000l")
+		r.csi("?1006l")
 	}
 	r.flush()
 	r.closePlatform()

src/tui/light_unix.go

@@ -1,4 +1,4 @@
-// +build !windows
+//go:build !windows
 
 package tui
 

src/tui/light_windows.go

@@ -1,4 +1,4 @@
-//+build windows
+//go:build windows
 
 package tui
 

src/tui/tcell.go

@@ -1,4 +1,4 @@
-// +build tcell windows
+//go:build tcell || windows
 
 package tui
 

src/tui/tcell_test.go

@@ -1,4 +1,4 @@
-// +build tcell windows
+//go:build tcell || windows
 
 package tui
 

src/tui/ttyname_unix.go

@@ -1,4 +1,4 @@
-// +build !windows
+//go:build !windows
 
 package tui
 

src/tui/ttyname_windows.go

@@ -1,4 +1,4 @@
-// +build windows
+//go:build windows
 
 package tui
 

src/util/util.go

@@ -26,7 +26,7 @@ func RunesWidth(runes []rune, prefixWidth int, tabstop int, limit int) (int, int
 			w = runewidth.StringWidth(s) + strings.Count(s, "\n")
 		}
 		width += w
-		if limit > 0 && width > limit {
+		if width > limit {
 			return width, idx
 		}
 		idx += len(rs)
@@ -34,6 +34,23 @@ func RunesWidth(runes []rune, prefixWidth int, tabstop int, limit int) (int, int
 	return width, -1
 }
 
+// Truncate returns the truncated runes and its width
+func Truncate(input string, limit int) ([]rune, int) {
+	runes := []rune{}
+	width := 0
+	gr := uniseg.NewGraphemes(input)
+	for gr.Next() {
+		rs := gr.Runes()
+		w := runewidth.StringWidth(string(rs))
+		if width+w > limit {
+			return runes, width
+		}
+		width += w
+		runes = append(runes, rs...)
+	}
+	return runes, width
+}
+
 // Max returns the largest integer
 func Max(first int, second int) int {
 	if first >= second {

src/util/util_test.go

@@ -38,3 +38,29 @@ func TestOnce(t *testing.T) {
 		t.Error("Expected: false")
 	}
 }
+
+func TestRunesWidth(t *testing.T) {
+	for _, args := range [][]int{
+		{100, 5, -1},
+		{3, 4, 3},
+		{0, 1, 0},
+	} {
+		width, overflowIdx := RunesWidth([]rune("hello"), 0, 0, args[0])
+		if width != args[1] {
+			t.Errorf("Expected width: %d, actual: %d", args[1], width)
+		}
+		if overflowIdx != args[2] {
+			t.Errorf("Expected overflow index: %d, actual: %d", args[2], overflowIdx)
+		}
+	}
+}
+
+func TestTruncate(t *testing.T) {
+	truncated, width := Truncate("가나다라마", 7)
+	if string(truncated) != "가나다" {
+		t.Errorf("Expected: 가나다, actual: %s", string(truncated))
+	}
+	if width != 6 {
+		t.Errorf("Expected: 6, actual: %d", width)
+	}
+}

src/util/util_unix.go

@@ -1,4 +1,4 @@
-// +build !windows
+//go:build !windows
 
 package util
 

src/util/util_windows.go

@@ -1,4 +1,4 @@
-// +build windows
+//go:build windows
 
 package util
 
@@ -6,23 +6,57 @@ import (
 	"fmt"
 	"os"
 	"os/exec"
+	"strings"
+	"sync/atomic"
 	"syscall"
 )
 
-// ExecCommand executes the given command with cmd
+var shellPath atomic.Value
+
+// ExecCommand executes the given command with $SHELL
 func ExecCommand(command string, setpgid bool) *exec.Cmd {
-	return ExecCommandWith("cmd", command, setpgid)
+	var shell string
+	if cached := shellPath.Load(); cached != nil {
+		shell = cached.(string)
+	} else {
+		shell = os.Getenv("SHELL")
+		if len(shell) == 0 {
+			shell = "cmd"
+		} else if strings.Contains(shell, "/") {
+			out, err := exec.Command("cygpath", "-w", shell).Output()
+			if err == nil {
+				shell = strings.Trim(string(out), "\n")
+			}
+		}
+		shellPath.Store(shell)
+	}
+	return ExecCommandWith(shell, command, setpgid)
 }
 
-// ExecCommandWith executes the given command with cmd. _shell parameter is
+// ExecCommandWith executes the given command with the specified shell
-// ignored on Windows.
 // FIXME: setpgid is unused. We set it in the Unix implementation so that we
 // can kill preview process with its child processes at once.
-func ExecCommandWith(_shell string, command string, setpgid bool) *exec.Cmd {
+// NOTE: For "powershell", we should ideally set output encoding to UTF8,
-	cmd := exec.Command("cmd")
+// but it is left as is now because no adverse effect has been observed.
+func ExecCommandWith(shell string, command string, setpgid bool) *exec.Cmd {
+	var cmd *exec.Cmd
+	if strings.Contains(shell, "cmd") {
+		cmd = exec.Command(shell)
+		cmd.SysProcAttr = &syscall.SysProcAttr{
+			HideWindow:    false,
+			CmdLine:       fmt.Sprintf(` /v:on/s/c "%s"`, command),
+			CreationFlags: 0,
+		}
+		return cmd
+	}
+
+	if strings.Contains(shell, "pwsh") || strings.Contains(shell, "powershell") {
+		cmd = exec.Command(shell, "-NoProfile", "-Command", command)
+	} else {
+		cmd = exec.Command(shell, "-c", command)
+	}
 	cmd.SysProcAttr = &syscall.SysProcAttr{
 		HideWindow:    false,
-		CmdLine:       fmt.Sprintf(` /v:on/s/c "%s"`, command),
 		CreationFlags: 0,
 	}
 	return cmd

test/test_go.rb

@@ -2043,8 +2043,8 @@ class TestGoFZF < TestBase
     tmux.until { |lines| assert_equal(%w[1 2 3 4 5], top5[lines]) }
   end
 
-  def test_unbind
+  def test_unbind_rebind
-    tmux.send_keys "seq 100 | #{FZF} --bind 'c:clear-query,d:unbind(c,d)'", :Enter
+    tmux.send_keys "seq 100 | #{FZF} --bind 'c:clear-query,d:unbind(c,d),e:rebind(c,d)'", :Enter
     tmux.until { |lines| assert_equal 100, lines.item_count }
     tmux.send_keys 'ab'
     tmux.until { |lines| assert_equal '> ab', lines[-1] }
@@ -2052,6 +2052,8 @@ class TestGoFZF < TestBase
     tmux.until { |lines| assert_equal '>', lines[-1] }
     tmux.send_keys 'dabcd'
     tmux.until { |lines| assert_equal '> abcd', lines[-1] }
+    tmux.send_keys 'ecabddc'
+    tmux.until { |lines| assert_equal '> abdc', lines[-1] }
   end
 
   def test_item_index_reset_on_reload
@@ -2069,6 +2071,160 @@ class TestGoFZF < TestBase
     tmux.send_keys :Up
     tmux.until { |lines| assert_includes lines[1], '[[99]]' }
   end
+
+  def test_reload_should_update_preview
+    tmux.send_keys "seq 3 | #{FZF} --bind 'ctrl-t:reload:echo 4' --preview 'echo {}' --preview-window 'nohidden'", :Enter
+    tmux.until { |lines| assert_includes lines[1], '1' }
+    tmux.send_keys 'C-t'
+    tmux.until { |lines| assert_includes lines[1], '4' }
+  end
+
+  def test_reload_and_change_preview_should_update_preview
+    tmux.send_keys "seq 3 | #{FZF} --bind 'ctrl-t:reload(echo 4)+change-preview(echo {})'", :Enter
+    tmux.until { |lines| assert_equal 3, lines.item_count }
+    tmux.until { |lines| refute_includes lines[1], '1' }
+    tmux.send_keys 'C-t'
+    tmux.until { |lines| assert_equal 1, lines.item_count }
+    tmux.until { |lines| assert_includes lines[1], '4' }
+  end
+
+  def test_scroll_off
+    tmux.send_keys "seq 1000 | #{FZF} --scroll-off=3 --bind l:last", :Enter
+    tmux.until { |lines| assert_equal 1000, lines.item_count }
+    height = tmux.until { |lines| lines }.first.to_i
+    tmux.send_keys :PgUp
+    tmux.until do |lines|
+      assert_equal height + 3, lines.first.to_i
+      assert_equal "> #{height}", lines[3].strip
+    end
+    tmux.send_keys :Up
+    tmux.until { |lines| assert_equal "> #{height + 1}", lines[3].strip }
+    tmux.send_keys 'l'
+    tmux.until { |lines| assert_equal '> 1000', lines.first.strip }
+    tmux.send_keys :PgDn
+    tmux.until { |lines| assert_equal "> #{1000 - height + 1}", lines.reverse[5].strip }
+    tmux.send_keys :Down
+    tmux.until { |lines| assert_equal "> #{1000 - height}", lines.reverse[5].strip }
+  end
+
+  def test_scroll_off_large
+    tmux.send_keys "seq 1000 | #{FZF} --scroll-off=9999", :Enter
+    tmux.until { |lines| assert_equal 1000, lines.item_count }
+    height = tmux.until { |lines| lines }.first.to_i
+    tmux.send_keys :PgUp
+    tmux.until { |lines| assert_equal "> #{height}", lines[height / 2].strip }
+    tmux.send_keys :Up
+    tmux.until { |lines| assert_equal "> #{height + 1}", lines[height / 2].strip }
+    tmux.send_keys :Up
+    tmux.until { |lines| assert_equal "> #{height + 2}", lines[height / 2].strip }
+    tmux.send_keys :Down
+    tmux.until { |lines| assert_equal "> #{height + 1}", lines[height / 2].strip }
+  end
+
+  def test_header_first
+    tmux.send_keys "seq 1000 | #{FZF} --header foobar --header-lines 3 --header-first", :Enter
+    tmux.until do |lines|
+      expected = <<~OUTPUT
+        > 4
+          997/997
+        >
+          3
+          2
+          1
+          foobar
+      OUTPUT
+
+      assert_equal expected.chomp, lines.reverse.take(7).reverse.join("\n")
+    end
+  end
+
+  def test_header_first_reverse
+    tmux.send_keys "seq 1000 | #{FZF} --header foobar --header-lines 3 --header-first --reverse --inline-info", :Enter
+    tmux.until do |lines|
+      expected = <<~OUTPUT
+          foobar
+          1
+          2
+          3
+        >   < 997/997
+        > 4
+      OUTPUT
+
+      assert_equal expected.chomp, lines.take(6).join("\n")
+    end
+  end
+
+  def test_change_preview_window
+    tmux.send_keys "seq 1000 | #{FZF} --preview 'echo [[{}]]' --preview-window border-none --bind '" \
+      'a:change-preview(echo __{}__),' \
+      'b:change-preview-window(down)+change-preview(echo =={}==)+change-preview-window(up),' \
+      'c:change-preview(),d:change-preview-window(hidden),' \
+      "e:preview(printf ::%${FZF_PREVIEW_COLUMNS}s{})+change-preview-window(up),f:change-preview-window(up,wrap)'", :Enter
+    tmux.until { |lines| assert_equal 1000, lines.item_count }
+    tmux.until { |lines| assert_includes lines[0], '[[1]]' }
+
+    # change-preview action permanently changes the preview command set by --preview
+    tmux.send_keys 'a'
+    tmux.until { |lines| assert_includes lines[0], '__1__' }
+    tmux.send_keys :Up
+    tmux.until { |lines| assert_includes lines[0], '__2__' }
+
+    # When multiple change-preview-window actions are bound to a single key,
+    # the last one wins and the updated options are immediately applied to the new preview
+    tmux.send_keys 'b'
+    tmux.until { |lines| assert_equal '==2==', lines[0] }
+    tmux.send_keys :Up
+    tmux.until { |lines| assert_equal '==3==', lines[0] }
+
+    # change-preview with an empty preview command closes the preview window
+    tmux.send_keys 'c'
+    tmux.until { |lines| refute_includes lines[0], '==' }
+
+    # change-preview again to re-open the preview window
+    tmux.send_keys 'a'
+    tmux.until { |lines| assert_equal '__3__', lines[0] }
+
+    # Hide the preview window with hidden flag
+    tmux.send_keys 'd'
+    tmux.until { |lines| refute_includes lines[0], '__3__' }
+
+    # One-off preview
+    tmux.send_keys 'e'
+    tmux.until do |lines|
+      assert_equal '::', lines[0]
+      refute_includes lines[1], '3'
+    end
+
+    # Wrapped
+    tmux.send_keys 'f'
+    tmux.until do |lines|
+      assert_equal '::', lines[0]
+      assert_equal '  3', lines[1]
+    end
+  end
+
+  def test_change_preview_window_rotate
+    tmux.send_keys "seq 100 | #{FZF} --preview-window left,border-none --preview 'echo hello' --bind '" \
+      "a:change-preview-window(right|down|up|hidden|)'", :Enter
+    3.times do
+      tmux.until { |lines| lines[0].start_with?('hello') }
+      tmux.send_keys 'a'
+      tmux.until { |lines| lines[0].end_with?('hello') }
+      tmux.send_keys 'a'
+      tmux.until { |lines| lines[-1].start_with?('hello') }
+      tmux.send_keys 'a'
+      tmux.until { |lines| assert_equal 'hello', lines[0] }
+      tmux.send_keys 'a'
+      tmux.until { |lines| refute_includes lines[0], 'hello' }
+      tmux.send_keys 'a'
+    end
+  end
+
+  def test_ellipsis
+    tmux.send_keys 'seq 1000 | tr "\n" , | fzf --ellipsis=SNIPSNIP -e -q500', :Enter
+    tmux.until { |lines| assert_equal 1, lines.match_count }
+    tmux.until { |lines| assert_match(/^> SNIPSNIP.*SNIPSNIP$/, lines[-3]) }
+  end
 end
 
 module TestShell
@@ -2322,7 +2478,7 @@ module CompletionTest
     pid = lines[-1]&.split&.last
     tmux.prepare
     tmux.send_keys 'C-L'
-    tmux.send_keys 'kill ', :Tab
+    tmux.send_keys 'kill **', :Tab
     tmux.until { |lines| assert_operator lines.match_count, :>, 0 }
     tmux.send_keys 'sleep12345'
     tmux.until { |lines| assert lines.any_include?('sleep 12345') }

uninstall

@@ -51,13 +51,8 @@ remove() {
 }
 
 remove_line() {
-  src=$(readlink "$1")
+  src=$1
-  if [ $? -eq 0 ]; then
+  echo "Remove from $1:"
-    echo "Remove from $1 ($src):"
-  else
-    src=$1
-    echo "Remove from $1:"
-  fi
 
   shift
   line_no=1
@@ -75,8 +70,9 @@ remove_line() {
     echo    "  - Line #$line_no: $content"
     [ "$content" = "$1" ] || ask "    - Remove?"
     if [ $? -eq 0 ]; then
-      awk -v n=$line_no 'NR == n {next} {print}' "$src" > "$src.bak" &&
+      temp=$(mktemp)
-        mv "$src.bak" "$src" || break
+      awk -v n=$line_no 'NR == n {next} {print}' "$src" > "$temp" &&
+        cat "$temp" > "$src" && rm -f "$temp" || break
       echo  "      - Removed"
     else
       echo  "      - Skipped"