0.43.0

Fix #2094

.github/workflows/linux.yml

@@ -20,7 +20,7 @@ jobs:
         fetch-depth: 0
 
     - name: Set up Go
-      uses: actions/setup-go@v3
+      uses: actions/setup-go@v4
       with:
         go-version: 1.19
 

.github/workflows/macos.yml

@@ -20,7 +20,7 @@ jobs:
         fetch-depth: 0
 
     - name: Set up Go
-      uses: actions/setup-go@v3
+      uses: actions/setup-go@v4
       with:
         go-version: 1.18
 

.github/workflows/sponsors.yml

@@ -0,0 +1,24 @@
+---
+name: Generate Sponsors README
+on:
+  workflow_dispatch:
+  schedule:
+    - cron: 0 0 * * 0
+jobs:
+  deploy:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout 🛎️
+        uses: actions/checkout@v3
+
+      - name: Generate Sponsors 💖
+        uses: JamesIves/github-sponsors-readme-action@v1
+        with:
+          token: ${{ secrets.SPONSORS_TOKEN }}
+          file: 'README.md'
+
+      - name: Deploy to GitHub Pages 🚀
+        uses: JamesIves/github-pages-deploy-action@v4
+        with:
+          branch: master
+          folder: '.'

.github/workflows/typos.yml

@@ -0,0 +1,10 @@
+name: "Spell Check"
+on: [pull_request]
+
+jobs:
+  typos:
+    name: Spell Check with Typos
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v3
+    - uses: crate-ci/typos@v1.16.4

.github/workflows/winget.yml

@@ -0,0 +1,15 @@
+name: Publish to Winget
+on:
+  release:
+    types: [released]
+
+jobs:
+  publish:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: vedantmgoyal2009/winget-releaser@v2
+        with:
+          identifier: junegunn.fzf
+          version: ${{ github.event.release.tag_name }}
+          installers-regex: '-windows_(armv7|arm64|amd64)\.zip$'
+          token: ${{ secrets.WINGET_TOKEN }}

.goreleaser.yml

@@ -74,6 +74,7 @@ builds:
       - arm64
       - loong64
       - ppc64le
+      - s390x
     goarm:
       - 5
       - 6

.tool-versions

@@ -1 +1 @@
-golang 1.19
+golang 1.20.4

ADVANCED.md

@@ -1,7 +1,10 @@
 Advanced fzf examples
 ======================
 
-*(Last update: 2022/08/25)*
+* *Last update: 2023/05/26*
+* *Requires fzf 0.41.0 or above*
+
+---
 
 <!-- vim-markdown-toc GFM -->
 
@@ -236,15 +239,13 @@ file called `rfv`.
 # 1. Search for text in files using Ripgrep
 # 2. Interactively narrow down the list using fzf
 # 3. Open the file in Vim
-IFS=: read -ra selected < <(
 rg --color=always --line-number --no-heading --smart-case "${*:-}" |
   fzf --ansi \
       --color "hl:-1:underline,hl+:-1:underline:reverse" \
       --delimiter : \
       --preview 'bat --color=always {1} --highlight-line {2}' \
-        --preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
+      --preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
-)
+      --bind 'enter:become(vim {1} +{2})'
-[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
 ```
 
 And run it with an initial query string.
@@ -307,8 +308,12 @@ I know it's a lot to digest, let's try to break down the code.
       position in the window
     - `~3` makes the top three lines fixed header so that they are always
       visible regardless of the scroll offset
-- Once we selected a line, we open the file with `vim` (`vim
+- Instead of using shell script to process the final output of fzf, we use
-  "${selected[0]}"`) and move the cursor to the line (`+${selected[1]}`).
+  `become(...)` action which was added in [fzf 0.38.0][0.38.0] to turn fzf
+  into a new process that opens the file with `vim` (`vim {1}`) and move the
+  cursor to the line (`+{2}`).
+
+[0.38.0]: https://github.com/junegunn/fzf/blob/master/CHANGELOG.md#0380
 
 ### Using fzf as interactive Ripgrep launcher
 
@@ -331,25 +336,22 @@ projects, and it will free up memory as you narrow down the results.
 # 3. Open the file in Vim
 RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
 INITIAL_QUERY="${*:-}"
-IFS=: read -ra selected < <(
+: | fzf --ansi --disabled --query "$INITIAL_QUERY" \
-  FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
+    --bind "start:reload:$RG_PREFIX {q}" \
-  fzf --ansi \
-      --disabled --query "$INITIAL_QUERY" \
     --bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
     --delimiter : \
     --preview 'bat --color=always {1} --highlight-line {2}' \
-      --preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
+    --preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
-)
+    --bind 'enter:become(vim {1} +{2})'
-[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
 ```
 
 ![image](https://user-images.githubusercontent.com/700826/113684212-f9ff0a00-96ff-11eb-8737-7bb571d320cc.png)
 
-- Instead of starting fzf in `rg ... | fzf` form, we start fzf without an
+- Instead of starting fzf in the usual `rg ... | fzf` form, we start fzf with
-  explicit input, but with a custom `FZF_DEFAULT_COMMAND` variable. This way
+  an empty input (`: | fzf`), then we make it start the initial Ripgrep
-  fzf can kill the initial Ripgrep process it starts with the initial query.
+  process immediately via `start:reload` binding. This way, fzf owns the
-  Otherwise, the initial Ripgrep process will keep consuming system resources
+  initial Ripgrep process so it can kill it on the next `reload`. Otherwise,
-  even after `reload` is triggered.
+  the process will keep running in the background.
 - Filtering is no longer a responsibility of fzf; hence `--disabled`
 - `{q}` in the reload command evaluates to the query string on fzf prompt.
 - `sleep 0.1` in the reload command is for "debouncing". This small delay will
@@ -358,8 +360,6 @@ IFS=: read -ra selected < <(
 
 ### Switching to fzf-only search mode
 
-*(Requires fzf 0.27.1 or above)*
-
 In the previous example, we lost fuzzy matching capability as we completely
 delegated search functionality to Ripgrep. But we can dynamically switch to
 fzf-only search mode by *"unbinding"* `reload` action from `change` event.
@@ -375,19 +375,16 @@ fzf-only search mode by *"unbinding"* `reload` action from `change` event.
 # 3. Open the file in Vim
 RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
 INITIAL_QUERY="${*:-}"
-IFS=: read -ra selected < <(
+: | fzf --ansi --disabled --query "$INITIAL_QUERY" \
-  FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
+    --bind "start:reload:$RG_PREFIX {q}" \
-  fzf --ansi \
-      --color "hl:-1:underline,hl+:-1:underline:reverse" \
-      --disabled --query "$INITIAL_QUERY" \
     --bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
     --bind "alt-enter:unbind(change,alt-enter)+change-prompt(2. fzf> )+enable-search+clear-query" \
+    --color "hl:-1:underline,hl+:-1:underline:reverse" \
     --prompt '1. ripgrep> ' \
     --delimiter : \
     --preview 'bat --color=always {1} --highlight-line {2}' \
-      --preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
+    --preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
-)
+    --bind 'enter:become(vim {1} +{2})'
-[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
 ```
 
 * Phase 1. Filtering with Ripgrep
@@ -408,10 +405,8 @@ IFS=: read -ra selected < <(
 
 ### Switching between Ripgrep mode and fzf mode
 
-*(Requires fzf 0.30.0 or above)*
+[fzf 0.30.0][0.30.0] added `rebind` action so we can "rebind" the bindings
-
+that were previously "unbound" via `unbind`.
-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
@@ -421,25 +416,32 @@ CTRL-F.
 #!/usr/bin/env bash
 
 # Switch between Ripgrep launcher mode (CTRL-R) and fzf filtering mode (CTRL-F)
+rm -f /tmp/rg-fzf-{r,f}
 RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
 INITIAL_QUERY="${*:-}"
-IFS=: read -ra selected < <(
+: | fzf --ansi --disabled --query "$INITIAL_QUERY" \
-  FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
+    --bind "start:reload($RG_PREFIX {q})+unbind(ctrl-r)" \
-  fzf --ansi \
-      --color "hl:-1:underline,hl+:-1:underline:reverse" \
-      --disabled --query "$INITIAL_QUERY" \
     --bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
-      --bind "ctrl-f:unbind(change,ctrl-f)+change-prompt(2. fzf> )+enable-search+clear-query+rebind(ctrl-r)" \
+    --bind "ctrl-f:unbind(change,ctrl-f)+change-prompt(2. fzf> )+enable-search+rebind(ctrl-r)+transform-query(echo {q} > /tmp/rg-fzf-r; cat /tmp/rg-fzf-f)" \
-      --bind "ctrl-r:unbind(ctrl-r)+change-prompt(1. ripgrep> )+disable-search+reload($RG_PREFIX {q} || true)+rebind(change,ctrl-f)" \
+    --bind "ctrl-r:unbind(ctrl-r)+change-prompt(1. ripgrep> )+disable-search+reload($RG_PREFIX {q} || true)+rebind(change,ctrl-f)+transform-query(echo {q} > /tmp/rg-fzf-f; cat /tmp/rg-fzf-r)" \
-      --prompt '1. Ripgrep> ' \
+    --color "hl:-1:underline,hl+:-1:underline:reverse" \
+    --prompt '1. ripgrep> ' \
     --delimiter : \
-      --header '╱ CTRL-R (Ripgrep mode) ╱ CTRL-F (fzf mode) ╱' \
+    --header '╱ CTRL-R (ripgrep mode) ╱ CTRL-F (fzf mode) ╱' \
     --preview 'bat --color=always {1} --highlight-line {2}' \
-      --preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
+    --preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
-)
+    --bind 'enter:become(vim {1} +{2})'
-[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
 ```
 
+- To restore the query string when switching between modes, we store the
+  current query in `/tmp/rg-fzf-{r,f}` files and restore the query using
+  `transform-query` action which was added in [fzf 0.36.0][0.36.0].
+- Also note that we unbind `ctrl-r` binding on `start` event which is
+  triggered once when fzf starts.
+
+[0.30.0]: https://github.com/junegunn/fzf/blob/master/CHANGELOG.md#0300
+[0.36.0]: https://github.com/junegunn/fzf/blob/master/CHANGELOG.md#0360
+
 Log tailing
 -----------
 
@@ -465,14 +467,15 @@ Kubernetes pods.
 
 ```bash
 pods() {
-  FZF_DEFAULT_COMMAND="kubectl get pods --all-namespaces" \
+  : | command='kubectl get pods --all-namespaces' fzf \
-    fzf --info=inline --layout=reverse --header-lines=1 \
+    --info=inline --layout=reverse --header-lines=1 \
     --prompt "$(kubectl config current-context | sed 's/-context$//')> " \
     --header $'╱ Enter (kubectl exec) ╱ CTRL-O (open log in editor) ╱ CTRL-R (reload) ╱\n\n' \
+    --bind 'start:reload:$command' \
+    --bind 'ctrl-r:reload:$command' \
     --bind 'ctrl-/:change-preview-window(80%,border-bottom|hidden|)' \
     --bind 'enter:execute:kubectl exec -it --namespace {1} {2} -- bash > /dev/tty' \
     --bind 'ctrl-o:execute:${EDITOR:-vim} <(kubectl logs --all-containers --namespace {1} {2}) > /dev/tty' \
-        --bind 'ctrl-r:reload:$FZF_DEFAULT_COMMAND' \
     --preview-window up:follow \
     --preview 'kubectl logs --follow --all-containers --tail=10000 --namespace {1} {2}' "$@"
 }

CHANGELOG.md

@@ -1,6 +1,228 @@
 CHANGELOG
 =========
 
+0.43.0
+------
+- (Experimental) Added support for Kitty image protocol in the preview window
+  ```sh
+  fzf --preview='
+    if file --mime-type {} | grep -qF image/; then
+      # --transfer-mode=memory is the fastest option but if you want fzf to be able
+      # to redraw the image on terminal resize or on 'change-preview-window',
+      # you need to use --transfer-mode=stream.
+      kitty icat --clear --transfer-mode=memory --stdin=no --place=${FZF_PREVIEW_COLUMNS}x${FZF_PREVIEW_LINES}@0x0 {} | sed \$d
+    else
+      bat --color=always {}
+    fi
+  '
+  ```
+- (Experimental) `--listen` server can report program state in JSON format (`GET /`)
+  ```sh
+  # fzf server started in "headless" mode
+  fzf --listen 6266 2> /dev/null
+
+  # Get program state
+  curl localhost:6266 | jq .
+
+  # Increase the number of items returned (default: 100)
+  curl localhost:6266?limit=1000 | jq .
+  ```
+- `--listen` server can be secured by setting `$FZF_API_KEY` environment
+  variable.
+  ```sh
+  export FZF_API_KEY="$(head -c 32 /dev/urandom | base64)"
+
+  # Server
+  fzf --listen 6266
+
+  # Client
+  curl localhost:6266 -H "x-api-key: $FZF_API_KEY" -d 'change-query(yo)'
+  ```
+- Added `toggle-header` action
+- Added mouse events for `--bind`
+    - `scroll-up` (bound to `up`)
+    - `scroll-down` (bound to `down`)
+    - `shift-scroll-up` (bound to `toggle+up`)
+    - `shift-scroll-down` (bound to `toggle+down`)
+    - `shift-left-click` (bound to `toggle`)
+    - `shift-right-click` (bound to `toggle`)
+    - `preview-scroll-up` (bound to `preview-up`)
+    - `preview-scroll-down` (bound to `preview-down`)
+    ```sh
+    # Twice faster scrolling both in the main window and the preview window
+    fzf --bind 'scroll-up:up+up,scroll-down:down+down' \
+        --bind 'preview-scroll-up:preview-up+preview-up' \
+        --bind 'preview-scroll-down:preview-down+preview-down' \
+        --preview 'cat {}'
+    ```
+- Added `offset-up` and `offset-down` actions
+  ```sh
+  # Scrolling will behave similarly to CTRL-E and CTRL-Y of vim
+  fzf --bind scroll-up:offset-up,scroll-down:offset-down \
+      --bind ctrl-y:offset-up,ctrl-e:offset-down \
+      --scroll-off=5
+  ```
+- Shell extensions
+    - Updated bash completion for fzf options
+    - bash key bindings no longer requires perl; it will use awk or mawk
+      instead if perl is not found
+    - Basic context-aware completion for ssh command
+    - Applied `--scheme=path` for better ordering of the result
+- Bug fixes and improvements
+
+0.42.0
+------
+- Added new info style: `--info=right`
+- Added new info style: `--info=inline-right`
+- Added new border style `thinblock` which uses symbols for legacy computing
+  [one eighth block elements](https://en.wikipedia.org/wiki/Symbols_for_Legacy_Computing)
+    - Similarly to `block`, this style is suitable when using a different
+      background color because the window is completely contained within the border.
+      ```sh
+      BAT_THEME=GitHub fzf --info=right --border=thinblock --preview-window=border-thinblock \
+          --margin=3 --scrollbar=▏▕ --preview='bat --color=always --style=numbers {}' \
+          --color=light,query:238,fg:238,bg:251,bg+:249,gutter:251,border:248,preview-bg:253
+      ```
+    - This style may not render correctly depending on the font and the
+      terminal emulator.
+
+0.41.1
+------
+- Fixed a bug where preview window is not updated when `--disabled` is set and
+  a reload is triggered by `change:reload` binding
+
+0.41.0
+------
+- Added color name `preview-border` and `preview-scrollbar`
+- Added new border style `block` which uses [block elements](https://en.wikipedia.org/wiki/Block_Elements)
+- `--scrollbar` can take two characters, one for the main window, the other
+  for the preview window
+- Putting it altogether:
+  ```sh
+  fzf-tmux -p 80% --padding 1,2 --preview 'bat --style=plain --color=always {}' \
+      --color 'bg:237,bg+:235,gutter:237,border:238,scrollbar:236' \
+      --color 'preview-bg:235,preview-border:236,preview-scrollbar:234' \
+      --preview-window 'border-block' --border block --scrollbar '▌▐'
+  ```
+- Bug fixes and improvements
+
+0.40.0
+------
+- Added `zero` event that is triggered when there's no match
+  ```sh
+  # Reload the candidate list when there's no match
+  echo $RANDOM | fzf --bind 'zero:reload(echo $RANDOM)+clear-query' --height 3
+  ```
+- New actions
+    - Added `track` action which makes fzf track the current item when the
+      search result is updated. If the user manually moves the cursor, or the
+      item is not in the updated search result, tracking is automatically
+      disabled. Tracking is useful when you want to see the surrounding items
+      by deleting the query string.
+      ```sh
+      # Narrow down the list with a query, point to a command,
+      # and hit CTRL-T to see its surrounding commands.
+      export FZF_CTRL_R_OPTS="
+        --preview 'echo {}' --preview-window up:3:hidden:wrap
+        --bind 'ctrl-/:toggle-preview'
+        --bind 'ctrl-t:track+clear-query'
+        --bind 'ctrl-y:execute-silent(echo -n {2..} | pbcopy)+abort'
+        --color header:italic
+        --header 'Press CTRL-Y to copy command into clipboard'"
+      ```
+    - Added `change-header(...)`
+    - Added `transform-header(...)`
+    - Added `toggle-track` action
+- Fixed `--track` behavior when used with `--tac`
+    - However, using `--track` with `--tac` is not recommended. The resulting
+      behavior can be very confusing.
+- Bug fixes and improvements
+
+0.39.0
+------
+- Added `one` event that is triggered when there's only one match
+  ```sh
+  # Automatically select the only match
+  seq 10 | fzf --bind one:accept
+  ```
+- Added `--track` option that makes fzf track the current selection when the
+  result list is updated. This can be useful when browsing logs using fzf with
+  sorting disabled.
+  ```sh
+  git log --oneline --graph --color=always | nl |
+      fzf --ansi --track --no-sort --layout=reverse-list
+  ```
+- If you use `--listen` option without a port number fzf will automatically
+  allocate an available port and export it as `$FZF_PORT` environment
+  variable.
+  ```sh
+  # Automatic port assignment
+  fzf --listen --bind 'start:execute-silent:echo $FZF_PORT > /tmp/fzf-port'
+
+  # Say hello
+  curl "localhost:$(cat /tmp/fzf-port)" -d 'preview:echo Hello, fzf is listening on $FZF_PORT.'
+  ```
+- A carriage return and a line feed character will be rendered as dim ␍ and
+  ␊ respectively.
+  ```sh
+  printf "foo\rbar\nbaz" | fzf --read0 --preview 'echo {}'
+  ```
+- fzf will stop rendering a non-displayable characters as a space. This will
+  likely cause less glitches in the preview window.
+  ```sh
+  fzf --preview 'head -1000 /dev/random'
+  ```
+- Bug fixes and improvements
+
+0.38.0
+------
+- New actions
+    - `become(...)` - Replace the current fzf process with the specified
+      command using `execve(2)` system call.
+      See https://github.com/junegunn/fzf#turning-into-a-different-process for
+      more information.
+      ```sh
+      # Open selected files in Vim
+      fzf --multi --bind 'enter:become(vim {+})'
+
+      # Open the file in Vim and go to the line
+      git grep --line-number . |
+          fzf --delimiter : --nth 3.. --bind 'enter:become(vim {1} +{2})'
+      ```
+        - This action is not supported on Windows
+    - `show-preview`
+    - `hide-preview`
+- Bug fixes
+    - `--preview-window 0,hidden` should not execute the preview command until
+      `toggle-preview` action is triggered
+
+0.37.0
+------
+- Added a way to customize the separator of inline info
+  ```sh
+  fzf --info 'inline: ╱ ' --prompt '╱ ' --color prompt:bright-yellow
+  ```
+- New event
+    - `focus` - Triggered when the focus changes due to a vertical cursor
+      movement or a search result update
+      ```sh
+      fzf --bind 'focus:transform-preview-label:echo [ {} ]' --preview 'cat {}'
+
+      # Any action bound to the event runs synchronously and thus can make the interface sluggish
+      # e.g. lolcat isn't one of the fastest programs, and every cursor movement in
+      #      fzf will be noticeably affected by its execution time
+      fzf --bind 'focus:transform-preview-label:echo [ {} ] | lolcat -f' --preview 'cat {}'
+
+      # Beware not to introduce an infinite loop
+      seq 10 | fzf --bind 'focus:up' --cycle
+      ```
+- New actions
+    - `change-border-label`
+    - `change-preview-label`
+    - `transform-border-label`
+    - `transform-preview-label`
+- Bug fixes and improvements
+
 0.36.0
 ------
 - Added `--listen=HTTP_PORT` option to start HTTP server. It allows external
@@ -91,7 +313,7 @@ CHANGELOG
 - Added color name `preview-label` for `--preview-label` (defaults to `label`
   for `--border-label`)
 - Better support for (Windows) terminals where each box-drawing character
-  takes 2 columns. Set `RUNEWIDTH_EASTASIAN` environment variable to `1`.
+  takes 2 columns. Set `RUNEWIDTH_EASTASIAN` environment variable to `0` or `1`.
     - On Vim, the variable will be automatically set if `&ambiwidth` is `double`
 - Behavior changes
     - fzf will always execute the preview command if the command template
@@ -200,7 +422,7 @@ CHANGELOG
           (sleep 2; seq 1000) | fzf --height ~50%
           ```
 - Fixed tcell renderer used to render full-screen fzf on Windows
-- `--no-clear` is deprecated. Use `reload` action instead.
+- ~~`--no-clear` is deprecated. Use `reload` action instead.~~
 
 0.33.0
 ------

Dockerfile

@@ -1,4 +1,4 @@
-FROM archlinux
+FROM --platform=linux/amd64 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

@@ -20,7 +20,7 @@ VERSION_REGEX  := $(subst .,\.,$(VERSION_TRIM))
 ifdef FZF_REVISION
 REVISION       := $(FZF_REVISION)
 else
-REVISION       := $(shell git log -n 1 --pretty=format:%h -- $(SOURCES) 2> /dev/null)
+REVISION       := $(shell git log -n 1 --pretty=format:%h --abbrev=8 -- $(SOURCES) 2> /dev/null)
 endif
 ifeq ($(REVISION),)
 $(error Not on git repository; cannot determine $$FZF_REVISION)
@@ -29,6 +29,7 @@ BUILD_FLAGS    := -a -ldflags "-s -w -X main.version=$(VERSION) -X main.revision
 
 BINARY32       := fzf-$(GOOS)_386
 BINARY64       := fzf-$(GOOS)_amd64
+BINARYS390     := fzf-$(GOOS)_s390x
 BINARYARM5     := fzf-$(GOOS)_arm5
 BINARYARM6     := fzf-$(GOOS)_arm6
 BINARYARM7     := fzf-$(GOOS)_arm7
@@ -43,6 +44,8 @@ ifeq ($(UNAME_M),x86_64)
 	BINARY := $(BINARY64)
 else ifeq ($(UNAME_M),amd64)
 	BINARY := $(BINARY64)
+else ifeq ($(UNAME_M),s390x)
+	BINARY := $(BINARYS390)
 else ifeq ($(UNAME_M),i686)
 	BINARY := $(BINARY32)
 else ifeq ($(UNAME_M),i386)
@@ -54,7 +57,9 @@ else ifeq ($(UNAME_M),armv6l)
 else ifeq ($(UNAME_M),armv7l)
 	BINARY := $(BINARYARM7)
 else ifeq ($(UNAME_M),armv8l)
-	BINARY := $(BINARYARM8)
+	# armv8l is always 32-bit and should implement the armv7 ISA, so
+	# just use the same filename as for armv7.
+	BINARY := $(BINARYARM7)
 else ifeq ($(UNAME_M),arm64)
 	BINARY := $(BINARYARM8)
 else ifeq ($(UNAME_M),aarch64)
@@ -85,7 +90,7 @@ bench:
 install: bin/fzf
 
 build:
-	goreleaser --rm-dist --snapshot
+	goreleaser build --rm-dist --snapshot --skip-post-hooks
 
 release:
 ifndef GITHUB_TOKEN
@@ -132,6 +137,8 @@ target/$(BINARY32): $(SOURCES)
 target/$(BINARY64): $(SOURCES)
 	GOARCH=amd64 $(GO) build $(BUILD_FLAGS) -o $@
 
+target/$(BINARYS390): $(SOURCES)
+	GOARCH=s390x $(GO) build $(BUILD_FLAGS) -o $@
 # https://github.com/golang/go/wiki/GoArm
 target/$(BINARYARM5): $(SOURCES)
 	GOARCH=arm GOARM=5 $(GO) build $(BUILD_FLAGS) -o $@

README-VIM.md

@@ -15,7 +15,7 @@ set rtp+=/usr/local/opt/fzf
 " If installed using Homebrew on Apple Silicon
 set rtp+=/opt/homebrew/opt/fzf
 
-" If installed using git
+" If you have cloned fzf on ~/.fzf directory
 set rtp+=~/.fzf
 ```
 
@@ -26,7 +26,10 @@ written as:
 " If installed using Homebrew
 Plug '/usr/local/opt/fzf'
 
-" If installed using git
+" If installed using Homebrew on Apple Silicon
+Plug '/opt/homebrew/opt/fzf'
+
+" If you have cloned fzf on ~/.fzf directory
 Plug '~/.fzf'
 ```
 
@@ -118,7 +121,7 @@ let g:fzf_action = {
 
 " An action can be a reference to a function that processes selected lines
 function! s:build_quickfix_list(lines)
-  call setqflist(map(copy(a:lines), '{ "filename": v:val }'))
+  call setqflist(map(copy(a:lines), '{ "filename": v:val, "lnum": 1 }'))
   copen
   cc
 endfunction

README.md

@@ -19,6 +19,15 @@ Pros
 - Batteries included
     - Vim/Neovim plugin, key bindings, and fuzzy auto-completion
 
+Sponsors ❤️
+-----------
+
+I would like to thank all the sponsors of this project who make it possible for me to continue to improve fzf.
+
+If you'd like to sponsor this project, please visit https://github.com/sponsors/junegunn.
+
+<!-- sponsors --><a href="https://github.com/miyanokomiya"><img src="https://github.com/miyanokomiya.png" width="60px" alt="miyanokomiya" /></a><a href="https://github.com/jonhoo"><img src="https://github.com/jonhoo.png" width="60px" alt="Jon Gjengset" /></a><a href="https://github.com/AceofSpades5757"><img src="https://github.com/AceofSpades5757.png" width="60px" alt="Kyle L. Davis" /></a><a href="https://github.com/Frederick888"><img src="https://github.com/Frederick888.png" width="60px" alt="Frederick Zhang" /></a><a href="https://github.com/moritzdietz"><img src="https://github.com/moritzdietz.png" width="60px" alt="Moritz Dietz" /></a><a href="https://github.com/mikker"><img src="https://github.com/mikker.png" width="60px" alt="Mikkel Malmberg" /></a><a href="https://github.com/pldubouilh"><img src="https://github.com/pldubouilh.png" width="60px" alt="Pierre Dubouilh" /></a><a href="https://github.com/rcorre"><img src="https://github.com/rcorre.png" width="60px" alt="Ryan Roden-Corrent" /></a><a href="https://github.com/blissdev"><img src="https://github.com/blissdev.png" width="60px" alt="Jordan Arentsen" /></a><a href="https://github.com/mislav"><img src="https://github.com/mislav.png" width="60px" alt="Mislav Marohnić" /></a><a href="https://github.com/aexvir"><img src="https://github.com/aexvir.png" width="60px" alt="Alex Viscreanu" /></a><a href="https://github.com/dbalatero"><img src="https://github.com/dbalatero.png" width="60px" alt="David Balatero" /></a><a href="https://github.com/comatory"><img src="https://github.com/comatory.png" width="60px" alt="Ondrej Synacek" /></a><a href="https://github.com/moobar"><img src="https://github.com/moobar.png" width="60px" alt="" /></a><a href="https://github.com/majjoha"><img src="https://github.com/majjoha.png" width="60px" alt="Mathias Jean Johansen" /></a><a href="https://github.com/benelan"><img src="https://github.com/benelan.png" width="60px" alt="Ben Elan" /></a><a href="https://github.com/jryom"><img src="https://github.com/jryom.png" width="60px" alt="Jesper" /></a><a href="https://github.com/nmrnv"><img src="https://github.com/nmrnv.png" width="60px" alt="Nikolay Marinov" /></a><a href="https://github.com/pawelduda"><img src="https://github.com/pawelduda.png" width="60px" alt="Paweł Duda" /></a><a href="https://github.com/slezica"><img src="https://github.com/slezica.png" width="60px" alt="Santiago Lezica" /></a><a href="https://github.com/pbwn"><img src="https://github.com/pbwn.png" width="60px" alt="" /></a><a href="https://github.com/timgluz"><img src="https://github.com/timgluz.png" width="60px" alt="Timo Sulg" /></a><a href="https://github.com/seanmorton"><img src="https://github.com/seanmorton.png" width="60px" alt="Sean Morton" /></a><a href="https://github.com/pyrho"><img src="https://github.com/pyrho.png" width="60px" alt="Damien Rajon" /></a><a href="https://github.com/ArtBIT"><img src="https://github.com/ArtBIT.png" width="60px" alt="ArtBIT" /></a><a href="https://github.com/da-moon"><img src="https://github.com/da-moon.png" width="60px" alt="" /></a><a href="https://github.com/hovissimo"><img src="https://github.com/hovissimo.png" width="60px" alt="Hovis" /></a><a href="https://github.com/dariusjonda"><img src="https://github.com/dariusjonda.png" width="60px" alt="Darius Jonda" /></a><a href="https://github.com/cristiand391"><img src="https://github.com/cristiand391.png" width="60px" alt="Cristian Dominguez" /></a><a href="https://github.com/eliangcs"><img src="https://github.com/eliangcs.png" width="60px" alt="Chang-Hung Liang" /></a><a href="https://github.com/raveensrk"><img src="https://github.com/raveensrk.png" width="60px" alt="Raveen Kumar" /></a><a href="https://github.com/asphaltbuffet"><img src="https://github.com/asphaltbuffet.png" width="60px" alt="Ben Lechlitner" /></a><a href="https://github.com/yash1th"><img src="https://github.com/yash1th.png" width="60px" alt="yash" /></a><a href="https://github.com/kg8m"><img src="https://github.com/kg8m.png" width="60px" alt="Takumi KAGIYAMA" /></a><a href="https://github.com/polm"><img src="https://github.com/polm.png" width="60px" alt="Paul O'Leary McCann" /></a><a href="https://github.com/rbeeger"><img src="https://github.com/rbeeger.png" width="60px" alt="Robert Beeger" /></a><a href="https://github.com/veebch"><img src="https://github.com/veebch.png" width="60px" alt="VEEB Projects" /></a><!-- sponsors -->
+
 Table of Contents
 -----------------
 
@@ -54,11 +63,13 @@ Table of Contents
 * [Advanced topics](#advanced-topics)
     * [Performance](#performance)
     * [Executing external programs](#executing-external-programs)
+    * [Turning into a different process](#turning-into-a-different-process)
     * [Reloading the candidate list](#reloading-the-candidate-list)
         * [1. Update the list of processes by pressing CTRL-R](#1-update-the-list-of-processes-by-pressing-ctrl-r)
         * [2. Switch between sources by pressing CTRL-D or CTRL-F](#2-switch-between-sources-by-pressing-ctrl-d-or-ctrl-f)
         * [3. Interactive ripgrep integration](#3-interactive-ripgrep-integration)
     * [Preview window](#preview-window)
+    * [Previewing an image](#previewing-an-image)
 * [Tips](#tips)
     * [Respecting `.gitignore`](#respecting-gitignore)
     * [Fish shell](#fish-shell)
@@ -123,6 +134,7 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 | pkg             | FreeBSD                 | `pkg install fzf`                  |
 | pkgin           | NetBSD                  | `pkgin install fzf`                |
 | pkg_add         | OpenBSD                 | `pkg_add fzf`                      |
+| Portage         | Gentoo                  | `emerge --ask app-shells/fzf`      |
 | XBPS            | Void Linux              | `sudo xbps-install -S fzf`         |
 | Zypper          | openSUSE                | `sudo zypper install fzf`          |
 
@@ -136,15 +148,17 @@ git clone --depth 1 https://github.com/junegunn/fzf.git ~/.fzf
 ### Windows
 
 Pre-built binaries for Windows can be downloaded [here][bin]. fzf is also
-available via [Chocolatey][choco] and [Scoop][scoop]:
+available via [Chocolatey][choco], [Scoop][scoop], and [Winget][winget]:
 
 | Package manager | Command              |
 | ---             | ---                  |
 | Chocolatey      | `choco install fzf`  |
 | Scoop           | `scoop install fzf`  |
+| Winget          | `winget install fzf` |
 
 [choco]: https://chocolatey.org/packages/fzf
 [scoop]: https://github.com/ScoopInstaller/Main/blob/master/bucket/fzf.json
+[winget]: https://github.com/microsoft/winget-pkgs/tree/master/manifests/j/junegunn/fzf
 
 Known issues and limitations on Windows can be found on [the wiki
 page][windows-wiki].
@@ -202,7 +216,23 @@ files excluding hidden ones. (You can override the default command with
 vim $(fzf)
 ```
 
-#### Using the finder
+> *:bulb: A more robust solution would be to use `xargs` but we've presented
+> the above as it's easier to grasp*
+> ```sh
+> fzf --print0 | xargs -0 -o vim
+> ```
+
+>
+> *:bulb: fzf also has the ability to turn itself into a different process.*
+>
+> ```sh
+> fzf --bind 'enter:become(vim {})'
+> ```
+>
+> *See [Turning into a different process](#turning-into-a-different-process)
+> for more information.*
+
+### Using the finder
 
 - `CTRL-K` / `CTRL-J` (or `CTRL-P` / `CTRL-N`) to move cursor up and down
 - `Enter` key to select the item, `CTRL-C` / `CTRL-G` / `ESC` to exit
@@ -211,7 +241,7 @@ vim $(fzf)
 - Mouse: scroll, click, double-click; shift-click and shift-scroll on
   multi-select mode
 
-#### Layout
+### Layout
 
 fzf by default starts in fullscreen mode, but you can make it start below the
 cursor with `--height` option.
@@ -234,7 +264,7 @@ default. For example,
 export FZF_DEFAULT_OPTS='--height 40% --layout=reverse --border'
 ```
 
-#### Search syntax
+### Search syntax
 
 Unless otherwise specified, fzf starts in "extended-search mode" where you can
 type in multiple search terms delimited by spaces. e.g. `^music .mp3$ sbtrkt
@@ -262,7 +292,7 @@ or `py`.
 ^core go$ | rb$ | py$
 ```
 
-#### Environment variables
+### Environment variables
 
 - `FZF_DEFAULT_COMMAND`
     - Default command to use when input is tty
@@ -278,11 +308,11 @@ or `py`.
     - Default options
     - e.g. `export FZF_DEFAULT_OPTS="--layout=reverse --inline-info"`
 
-#### Options
+### Options
 
 See the man page (`man fzf`) for the full list of options.
 
-#### Demo
+### Demo
 If you learn by watching videos, check out this screencast by [@samoshkin](https://github.com/samoshkin) to explore `fzf` features.
 
 <a title="fzf - command-line fuzzy finder" href="https://www.youtube.com/watch?v=qgG5Jhi_Els">
@@ -335,7 +365,7 @@ fish.
     - Set `FZF_CTRL_T_COMMAND` to override the default command
     - Set `FZF_CTRL_T_OPTS` to pass additional options to fzf
       ```sh
-      # Preview file content using bat (https://github.com/sharkdp/fd)
+      # Preview file content using bat (https://github.com/sharkdp/bat)
       export FZF_CTRL_T_OPTS="
         --preview 'bat -n --color=always {}'
         --bind 'ctrl-/:change-preview-window(down|hidden|)'"
@@ -363,7 +393,7 @@ fish.
       ```
 
 If you're on a tmux session, you can start fzf in a tmux split-pane or in
-a tmux popup window by setting `FZF_TMUX_OPTS` (e.g. `-d 40%`).
+a tmux popup window by setting `FZF_TMUX_OPTS` (e.g. `export FZF_TMUX_OPTS='-p80%,60%'`).
 See `fzf-tmux --help` for available options.
 
 More tips can be found on [the wiki page](https://github.com/junegunn/fzf/wiki/Configuring-shell-key-bindings).
@@ -371,7 +401,7 @@ More tips can be found on [the wiki page](https://github.com/junegunn/fzf/wiki/C
 Fuzzy completion for bash and zsh
 ---------------------------------
 
-#### Files and directories
+### Files and directories
 
 Fuzzy completion for files and directories can be triggered if the word before
 the cursor ends with the trigger sequence, which is by default `**`.
@@ -400,7 +430,7 @@ cd **<TAB>
 cd ~/github/fzf**<TAB>
 ```
 
-#### Process IDs
+### Process IDs
 
 Fuzzy completion for PIDs is provided for kill command.
 
@@ -409,7 +439,7 @@ Fuzzy completion for PIDs is provided for kill command.
 kill -9 **<TAB>
 ```
 
-#### Host names
+### Host names
 
 For ssh and telnet commands, fuzzy completion for hostnames is provided. The
 names are extracted from /etc/hosts and ~/.ssh/config.
@@ -419,7 +449,7 @@ ssh **<TAB>
 telnet **<TAB>
 ```
 
-#### Environment variables / Aliases
+### Environment variables / Aliases
 
 ```sh
 unset **<TAB>
@@ -427,7 +457,7 @@ export **<TAB>
 unalias **<TAB>
 ```
 
-#### Settings
+### Settings
 
 ```sh
 # Use ~~ as the trigger sequence instead of the default **
@@ -465,7 +495,7 @@ _fzf_comprun() {
 }
 ```
 
-#### Supported commands
+### Supported commands
 
 On bash, fuzzy completion is enabled only for a predefined set of commands
 (`complete | grep _fzf` to see the list). But you can enable it for other
@@ -477,7 +507,7 @@ _fzf_setup_completion path ag git kubectl
 _fzf_setup_completion dir tree
 ```
 
-#### Custom fuzzy completion
+### Custom fuzzy completion
 
 _**(Custom completion API is experimental and subject to change)**_
 
@@ -560,6 +590,47 @@ fzf --bind 'f1:execute(less -f {}),ctrl-y:execute-silent(echo {} | pbcopy)+abort
 
 See *KEY BINDINGS* section of the man page for details.
 
+### Turning into a different process
+
+`become(...)` is similar to `execute(...)`/`execute-silent(...)` described
+above, but instead of executing the command and coming back to fzf on
+complete, it turns fzf into a new process for the command.
+
+```sh
+fzf --bind 'enter:become(vim {})'
+```
+
+Compared to the seemingly equivalent command substitution `vim "$(fzf)"`, this
+approach has several advantages:
+
+* Vim will not open an empty file when you terminate fzf with
+  <kbd>CTRL-C</kbd>
+* Vim will not open an empty file when you press <kbd>ENTER</kbd> on an empty
+  result
+* Can handle multiple selections even when they have whitespaces
+  ```sh
+  fzf --multi --bind 'enter:become(vim {+})'
+  ```
+
+To be fair, running `fzf --print0 | xargs -0 -o vim` instead of `vim "$(fzf)"`
+resolves all of the issues mentioned. Nonetheless, `become(...)` still offers
+additional benefits in different scenarios.
+
+* You can set up multiple bindings to handle the result in different ways
+  without any wrapping script
+  ```sh
+  fzf --bind 'enter:become(vim {}),ctrl-e:become(emacs {})'
+  ```
+  * Previously, you would have to use `--expect=ctrl-e` and check the first
+    line of the output of fzf
+* You can easily build the subsequent command using the field index
+  expressions of fzf
+  ```sh
+  # Open the file in Vim and go to the line
+  git grep --line-number . |
+      fzf --delimiter : --nth 3.. --bind 'enter:become(vim {1} +{2})'
+  ```
+
 ### Reloading the candidate list
 
 By binding `reload` action to a key or an event, you can make fzf dynamically
@@ -569,8 +640,8 @@ more details.
 #### 1. Update the list of processes by pressing CTRL-R
 
 ```sh
-FZF_DEFAULT_COMMAND='ps -ef' \
+ps -ef |
-  fzf --bind 'ctrl-r:reload(eval "$FZF_DEFAULT_COMMAND")' \
+  fzf --bind 'ctrl-r:reload(ps -ef)' \
       --header 'Press CTRL-R to reload' --header-lines=1 \
       --height=50% --layout=reverse
 ```
@@ -592,11 +663,11 @@ expression `{q}`. Also, note that we used `--disabled` option so that fzf
 doesn't perform any secondary filtering.
 
 ```sh
-INITIAL_QUERY=""
+: | rg_prefix='rg --column --line-number --no-heading --color=always --smart-case' \
-RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
+    fzf --bind 'start:reload:$rg_prefix ""' \
-FZF_DEFAULT_COMMAND="$RG_PREFIX '$INITIAL_QUERY'" \
+        --bind 'change:reload:$rg_prefix {q} || true' \
-  fzf --bind "change:reload:$RG_PREFIX {q} || true" \
+        --bind 'enter:become(vim {1} +{2})' \
-      --ansi --disabled --query "$INITIAL_QUERY" \
+        --ansi --disabled \
         --height=50% --layout=reverse
 ```
 
@@ -605,7 +676,7 @@ 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 interactive Ripgrep launcher"](https://github.com/junegunn/fzf/blob/master/ADVANCED.md#using-fzf-as-interactive-ripgrep-launcher)
-for a fuller example with preview window options.
+for more sophisticated examples.
 
 ### Preview window
 
@@ -660,10 +731,26 @@ seq 100 | fzf
 history | fzf
 ```
 
+### Previewing an image
+
+Since 0.43.0, fzf has experimental support for [Kitty graphics
+protocol](https://sw.kovidgoyal.net/kitty/graphics-protocol/), so if you use
+Kitty, you can make fzf display an image in the preview window.
+
+```sh
+fzf --preview='
+  if file --mime-type {} | grep -qF image/; then
+    kitty icat --clear --transfer-mode=memory --stdin=no --place=${FZF_PREVIEW_COLUMNS}x${FZF_PREVIEW_LINES}@0x0 {} | sed \$d
+  else
+    bat --color=always {}
+  fi
+'
+```
+
 Tips
 ----
 
-#### Respecting `.gitignore`
+### Respecting `.gitignore`
 
 You can use [fd](https://github.com/sharkdp/fd),
 [ripgrep](https://github.com/BurntSushi/ripgrep), or [the silver
@@ -692,7 +779,7 @@ hidden files, use the following command:
 export FZF_DEFAULT_COMMAND='fd --type f --strip-cwd-prefix --hidden --follow --exclude .git'
 ```
 
-#### Fish shell
+### Fish shell
 
 `CTRL-T` key binding of fish, unlike those of bash and zsh, will use the last
 token on the command-line as the root directory for the recursive search. For

bin/fzf-tmux

@@ -151,12 +151,18 @@ argsf="${TMPDIR:-/tmp}/fzf-args-$id"
 fifo1="${TMPDIR:-/tmp}/fzf-fifo1-$id"
 fifo2="${TMPDIR:-/tmp}/fzf-fifo2-$id"
 fifo3="${TMPDIR:-/tmp}/fzf-fifo3-$id"
+if tmux_win_opts=$(tmux show-options -p remain-on-exit \; show-options -p synchronize-panes 2> /dev/null); then
+  tmux_win_opts=( $(sed '/ off/d; s/synchronize-panes/set-option -p synchronize-panes/; s/remain-on-exit/set-option -p remain-on-exit/; s/$/ \\;/' <<< "$tmux_win_opts") )
+  tmux_off_opts='; set-option -p synchronize-panes off ; set-option -p remain-on-exit off'
+else
   tmux_win_opts=( $(tmux show-window-options remain-on-exit \; show-window-options synchronize-panes | sed '/ off/d; s/^/set-window-option /; s/$/ \\;/') )
+  tmux_off_opts='; set-window-option synchronize-panes off ; set-window-option remain-on-exit off'
+fi
 cleanup() {
   \rm -f $argsf $fifo1 $fifo2 $fifo3
 
   # Restore tmux window options
-  if [[ "${#tmux_win_opts[@]}" -gt 0 ]]; then
+  if [[ "${#tmux_win_opts[@]}" -gt 1 ]]; then
     eval "tmux ${tmux_win_opts[*]}"
   fi
 
@@ -179,15 +185,21 @@ trap 'cleanup' EXIT
 
 envs="export TERM=$TERM "
 if [[ "$opt" =~ "-E" ]]; then
-  FZF_DEFAULT_OPTS="--margin 0,1 $FZF_DEFAULT_OPTS"
+  tmux_version=$(tmux -V | sed 's/[^0-9.]//g')
-  tmux_version=$(tmux -V)
+  if [[ $(awk '{print ($1 > 3.2)}' <<< "$tmux_version" 2> /dev/null || bc -l <<< "$tmux_version > 3.2") = 1 ]]; then
-  if [[ ! $tmux_version =~ 3\.2 ]]; then
     FZF_DEFAULT_OPTS="--border $FZF_DEFAULT_OPTS"
     opt="-B $opt"
+  elif [[ $tmux_version = 3.2 ]]; then
+    FZF_DEFAULT_OPTS="--margin 0,1 $FZF_DEFAULT_OPTS"
+  else
+    echo "fzf-tmux: tmux 3.2 or above is required for popup mode" >&2
+    exit 2
   fi
 fi
 [[ -n "$FZF_DEFAULT_OPTS"    ]] && envs="$envs FZF_DEFAULT_OPTS=$(printf %q "$FZF_DEFAULT_OPTS")"
 [[ -n "$FZF_DEFAULT_COMMAND" ]] && envs="$envs FZF_DEFAULT_COMMAND=$(printf %q "$FZF_DEFAULT_COMMAND")"
+[[ -n "$RUNEWIDTH_EASTASIAN" ]] && envs="$envs RUNEWIDTH_EASTASIAN=$(printf %q "$RUNEWIDTH_EASTASIAN")"
+[[ -n "$BAT_THEME" ]] && envs="$envs BAT_THEME=$(printf %q "$BAT_THEME")"
 echo "$envs;" > "$argsf"
 
 # Build arguments to fzf
@@ -221,9 +233,9 @@ else
   cat <<< "\"$fzf\" $opts < $fifo1 > $fifo2; echo \$? > $fifo3 $close" >> $argsf
   cat <&0 > $fifo1 &
 fi
-tmux set-window-option synchronize-panes off \;\
+tmux \
-  set-window-option remain-on-exit off \;\
   split-window -c "$PWD" $opt "bash -c 'exec -a fzf bash $argsf'" $swap \
+  $tmux_off_opts \
   > /dev/null 2>&1 || { "$fzf" "${args[@]}"; exit $?; }
 cat $fifo2
 exit "$(cat $fifo3)"

doc/fzf.txt

@@ -1,4 +1,4 @@
-fzf.txt	fzf	Last change: May 19 2021
+fzf.txt	fzf	Last change: September 17 2023
 FZF - TABLE OF CONTENTS                                            *fzf* *fzf-toc*
 ==============================================================================
 
@@ -32,7 +32,10 @@ depending on the package manager.
     " If installed using Homebrew
     set rtp+=/usr/local/opt/fzf
 
-    " If installed using git
+    " If installed using Homebrew on Apple Silicon
+    set rtp+=/opt/homebrew/opt/fzf
+
+    " If you have cloned fzf on ~/.fzf directory
     set rtp+=~/.fzf
 <
 If you use {vim-plug}{1}, the same can be written as:
@@ -40,7 +43,10 @@ If you use {vim-plug}{1}, the same can be written as:
     " If installed using Homebrew
     Plug '/usr/local/opt/fzf'
 
-    " If installed using git
+    " If installed using Homebrew on Apple Silicon
+    Plug '/opt/homebrew/opt/fzf'
+
+    " If you have cloned fzf on ~/.fzf directory
     Plug '~/.fzf'
 <
 But if you want the latest Vim plugin file from GitHub rather than the one
@@ -68,16 +74,16 @@ SUMMARY                                                            *fzf-summary*
 The Vim plugin of fzf provides two core functions, and `:FZF` command which is
 the basic file selector command built on top of them.
 
- 1. `fzf#run([spec dict])`
+ 1. `fzf#run([spec dict])`
    - Starts fzf inside Vim with the given spec
-   - `:call fzf#run({'source': 'ls'})`
+   - `:call fzf#run({'source': 'ls'})`
- 2. `fzf#wrap([spec dict]) -> (dict)`
+ 2. `fzf#wrap([spec dict]) -> (dict)`
    - Takes a spec for `fzf#run` and returns an extended version of it with
      additional options for addressing global preferences (`g:fzf_xxx`)
-     - `:echo fzf#wrap({'source': 'ls'})`
+     - `:echo fzf#wrap({'source': 'ls'})`
    - We usually wrap a spec with `fzf#wrap` before passing it to `fzf#run`
-     - `:call fzf#run(fzf#wrap({'source': 'ls'}))`
+     - `:call fzf#run(fzf#wrap({'source': 'ls'}))`
- 3. `:FZF [fzf_options string] [path string]`
+ 3. `:FZF [fzf_options string] [path string]`
    - Basic fuzzy file selector
    - A reference implementation for those who don't want to write VimScript to
      implement custom commands
@@ -143,7 +149,7 @@ Examples~
 
     " An action can be a reference to a function that processes selected lines
     function! s:build_quickfix_list(lines)
-      call setqflist(map(copy(a:lines), '{ "filename": v:val }'))
+      call setqflist(map(copy(a:lines), '{ "filename": v:val, "lnum": 1 }'))
       copen
       cc
     endfunction
@@ -222,12 +228,12 @@ list:
   `spinner`                    | Streaming input indicator
   `query`                      | Query string
   `disabled`                   | Query string when search is disabled
-  `prompt`                     | Prompt before query ( `> ` )
+  `prompt`                     | Prompt before query ( `> ` )
   `pointer`                    | Pointer to the current line ( `>` )
  ----------------------------+------------------------------------------------------
  - `component` specifies the component (`fg` / `bg`) from which to extract the
    color when considering each of the following highlight groups
- - `group1 [, group2, ...]` is a list of highlight groups that are searched (in
+ - `group1 [, group2, ...]` is a list of highlight groups that are searched (in
    order) for a matching color definition
 
 For example, consider the following specification:
@@ -268,7 +274,7 @@ as the sink.
 <
 Instead of using the default find command, you can use any shell command as
 the source. The following example will list the files managed by git. It's
-equivalent to running `git ls-files | fzf` on shell.
+equivalent to running `git ls-files | fzf` on shell.
 >
     call fzf#run({'source': 'git ls-files', 'sink': 'e'})
 <
@@ -296,7 +302,7 @@ The following table summarizes the available options.
  ---------------------------+---------------+----------------------------------------------------------------------
  Option name                | Type          | Description                                                          ~
  ---------------------------+---------------+----------------------------------------------------------------------
-  `source`                    | string        | External command to generate input to fzf (e.g.  `find .` )
+  `source`                    | string        | External command to generate input to fzf (e.g.  `find .` )
   `source`                    | list          | Vim list as input to fzf
   `sink`                      | string        | Vim command to handle the selected item (e.g.  `e` ,  `tabe` )
   `sink`                      | funcref       | Reference to function to process each selected item
@@ -305,8 +311,8 @@ The following table summarizes the available options.
   `dir`                       | string        | Working directory
   `up` / `down` / `left` / `right`  | number/string | (Layout) Window position and size (e.g.  `20` ,  `50%` )
   `tmux`                      | string        | (Layout) fzf-tmux options (e.g.  `-p90%,60%` )
-  `window`  (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g.  `vertical aboveleft 30new` )
+  `window`  (Vim 8 / Neovim)  | string        | (Layout) Command to open fzf window (e.g.  `vertical aboveleft 30new` )
-  `window`  (Vim 8 / Neovim)  | dict          | (Layout) Popup window settings (e.g.  `{'width': 0.9, 'height': 0.6}` )
+  `window`  (Vim 8 / Neovim)  | dict          | (Layout) Popup window settings (e.g.  `{'width': 0.9, 'height': 0.6}` )
  ---------------------------+---------------+----------------------------------------------------------------------
 
 `options` entry can be either a string or a list. For simple cases, string
@@ -343,7 +349,7 @@ So how can we make our custom `fzf#run` calls also respect those variables?
 Simply by "wrapping" the spec dictionary with `fzf#wrap` before passing it to
 `fzf#run`.
 
- - `fzf#wrap([name string], [spec dict], [fullscreen bool]) -> (dict)`
+ - `fzf#wrap([name string], [spec dict], [fullscreen bool]) -> (dict)`
    - All arguments are optional. Usually we only need to pass a spec
      dictionary.
    - `name` is for managing history files. It is ignored if `g:fzf_history_dir`
@@ -377,7 +383,7 @@ last `fullscreen` argument of `fzf#wrap` (see :help <bang>).
     command! -bang LS call fzf#run(fzf#wrap({'source': 'ls'}, <bang>0))
 <
 Our `:LS` command will be much more useful if we can pass a directory argument
-to it, so that something like `:LS /tmp` is possible.
+to it, so that something like `:LS /tmp` is possible.
 >
     command! -bang -complete=dir -nargs=? LS
         \ call fzf#run(fzf#wrap({'source': 'ls', 'dir': <q-args>}, <bang>0))
@@ -396,10 +402,10 @@ unique name to our command and pass it as the first argument to `fzf#wrap`.
 
  - `g:fzf_layout`
  - `g:fzf_action`
-   - Works only when no custom `sink` (or `sink*`) is provided
+   - Works only when no custom `sink` (or `sinklist`) is provided
      - Having custom sink usually means that each entry is not an ordinary
        file path (e.g. name of color scheme), so we can't blindly apply the
-       same strategy (i.e. `tabedit some-color-scheme` doesn't make sense)
+       same strategy (i.e. `tabedit some-color-scheme` doesn't make sense)
  - `g:fzf_colors`
  - `g:fzf_history_dir`
 
@@ -488,7 +494,7 @@ or above) by putting fzf-tmux options in `tmux` key.
                                                            *fzf-hide-statusline*
 
 When fzf starts in a terminal buffer, the file type of the buffer is set to
-`fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
+`fzf`. So you can set up `FileType fzf` autocmd to customize the settings of
 the window.
 
 For example, if you open fzf on the bottom on the screen (e.g. `{'down':

go.mod

@@ -5,10 +5,10 @@ require (
 	github.com/mattn/go-isatty v0.0.17
 	github.com/mattn/go-runewidth v0.0.14
 	github.com/mattn/go-shellwords v1.0.12
-	github.com/rivo/uniseg v0.4.2
+	github.com/rivo/uniseg v0.4.4
 	github.com/saracen/walker v0.1.3
-	golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab
+	golang.org/x/sys v0.13.0
-	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211
+	golang.org/x/term v0.13.0
 )
 
 require (

go.sum

@@ -11,8 +11,8 @@ github.com/mattn/go-runewidth v0.0.14/go.mod h1:Jdepj2loyihRzMpdS35Xk/zdY8IAYHsh
 github.com/mattn/go-shellwords v1.0.12 h1:M2zGm7EW6UQJvDeQxo4T51eKPurbeFbe8WtebGE2xrk=
 github.com/mattn/go-shellwords v1.0.12/go.mod h1:EZzvwXDESEeg03EKmM+RmDnNOPKG4lLtQsUlTZDWQ8Y=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
-github.com/rivo/uniseg v0.4.2 h1:YwD0ulJSJytLpiaWua0sBDusfsCZohxjxzVTYjwxfV8=
+github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
-github.com/rivo/uniseg v0.4.2/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
+github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/saracen/walker v0.1.3 h1:YtcKKmpRPy6XJTHJ75J2QYXXZYWnZNQxPCVqZSHVV/g=
 github.com/saracen/walker v0.1.3/go.mod h1:FU+7qU8DeQQgSZDmmThMJi93kPkLFgy0oVAcLxurjIk=
 github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY=
@@ -31,11 +31,13 @@ golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab h1:2QkjZIsXupsJbJIdSjjUOgWK3aEtzyuh2mPt3l/CkeU=
 golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.13.0 h1:Af8nKPmuFypiUBjVoU9V20FiaFXOcuZI21p0ycVYYGE=
+golang.org/x/sys v0.13.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
-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/term v0.13.0 h1:bb+I9cTfFazGW51MZqBVmZy7+JEJMouUHTUSKVQLBek=
+golang.org/x/term v0.13.0/go.mod h1:LTmsnFJwVN6bCy1rVCoS+qHT1HhALEFxKncY3WNNh4U=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=

install

@@ -2,7 +2,7 @@
 
 set -u
 
-version=0.36.0
+version=0.43.0
 auto_completion=
 key_bindings=
 update_config=2
@@ -178,6 +178,7 @@ case "$archi" in
   Linux\ loongarch64) download fzf-$version-linux_loong64.tar.gz ;;
   Linux\ ppc64le)     download fzf-$version-linux_ppc64le.tar.gz ;;
   Linux\ *64)         download fzf-$version-linux_amd64.tar.gz   ;;
+  Linux\ s390x)       download fzf-$version-linux_s390x.tar.gz   ;;
   FreeBSD\ *64)       download fzf-$version-freebsd_amd64.tar.gz ;;
   OpenBSD\ *64)       download fzf-$version-openbsd_amd64.tar.gz ;;
   CYGWIN*\ *64)       download fzf-$version-windows_amd64.zip    ;;
@@ -195,12 +196,12 @@ if [ -n "$binary_error" ]; then
     echo "  - $binary_error !!!"
   fi
   if command -v go > /dev/null; then
-    echo -n "Building binary (go get -u github.com/junegunn/fzf) ... "
+    echo -n "Building binary (go install github.com/junegunn/fzf) ... "
     if [ -z "${GOPATH-}" ]; then
       export GOPATH="${TMPDIR:-/tmp}/fzf-gopath"
       mkdir -p "$GOPATH"
     fi
-    if go get -ldflags "-s -w -X main.version=$version -X main.revision=go-get" github.com/junegunn/fzf; then
+    if go install -ldflags "-s -w -X main.version=$version -X main.revision=go-install" github.com/junegunn/fzf; then
       echo "OK"
       cp "$GOPATH/bin/fzf" "$fzf_base/bin/"
     else
@@ -244,7 +245,7 @@ for shell in $shells; do
   src=${prefix_expand}.${shell}
   echo -n "Generate $src ... "
 
-  fzf_completion="[[ \$- == *i* ]] && source \"$fzf_base/shell/completion.${shell}\" 2> /dev/null"
+  fzf_completion="source \"$fzf_base/shell/completion.${shell}\""
   if [ $auto_completion -eq 0 ]; then
     fzf_completion="# $fzf_completion"
   fi

install.ps1

@@ -1,4 +1,4 @@
-$version="0.36.0"
+$version="0.43.0"
 
 $fzf_base=Split-Path -Parent $MyInvocation.MyCommand.Definition
 

main.go

@@ -5,7 +5,7 @@ import (
 	"github.com/junegunn/fzf/src/protector"
 )
 
-var version string = "0.36"
+var version string = "0.43"
 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 "Jan 2023" "fzf 0.36.0" "fzf-tmux - open fzf in tmux split pane"
+.TH fzf-tmux 1 "Oct 2023" "fzf 0.43.0" "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 "Jan 2023" "fzf 0.36.0" "fzf - a command-line fuzzy finder"
+.TH fzf 1 "Oct 2023" "fzf 0.43.0" "fzf - a command-line fuzzy finder"
 
 .SH NAME
 fzf - a command-line fuzzy finder
@@ -57,9 +57,9 @@ Choose scoring scheme tailored for different types of input.
 .br
 .BR default "  Generic scoring scheme designed to work well with any type of input"
 .br
-.BR path "     Scoring scheme for paths (additional bonus point only after path separator)
+.BR path "     Scoring scheme well suited for file paths
 .br
-.BR history "  Scoring scheme for command history (no additional bonus points).
+.BR history "  Scoring scheme well suited for command history or any input where chronological ordering is important
          Sets \fB--tiebreak=index\fR as well.
 .br
 .TP
@@ -92,6 +92,19 @@ interface rather than a "fuzzy finder". You can later enable the search using
 .B "+s, --no-sort"
 Do not sort the result
 .TP
+.B "--track"
+Make fzf track the current selection when the result list is updated.
+This can be useful when browsing logs using fzf with sorting disabled. It is
+not recommended to use this option with \fB--tac\fR as the resulting behavior
+can be confusing. Also, consider using \fBtrack\fR action instead of this
+option.
+
+.RS
+e.g.
+     \fBgit log --oneline --graph --color=always | nl |
+         fzf --ansi --track --no-sort --layout=reverse-list\fR
+.RE
+.TP
 .B "--tac"
 Reverse the order of the input
 
@@ -215,6 +228,10 @@ Draw border around the finder
 .br
 .BR double "        Border with double lines"
 .br
+.BR block "         Border using block elements; suitable when using different background colors"
+.br
+.BR thinblock "     Border using legacy computing symbols; may not be displayed on some terminals"
+.br
 .BR horizontal "    Horizontal lines above and below the finder"
 .br
 .BR vertical "      Vertical lines on each side of the finder"
@@ -231,8 +248,9 @@ Draw border around the finder
 .br
 
 If you use a terminal emulator where each box-drawing character takes
-2 columns, try setting \fBRUNEWIDTH_EASTASIAN\fR to \fB1\fR. If the border is
+2 columns, try setting \fBRUNEWIDTH_EASTASIAN\fR environment variable to
-still not properly rendered, set \fB--no-unicode\fR.
+\fB0\fR or \fB1\fR. If the border is still not properly rendered, set
+\fB--no-unicode\fR.
 
 .TP
 .BI "--border-label" [=LABEL]
@@ -339,7 +357,13 @@ Determines the display style of finder info (match counters).
 .br
 .BR default "          Display on the next line to the prompt"
 .br
-.BR inline "        Display on the same line"
+.BR right "            Display on the right end of the next line to the prompt"
+.br
+.BR inline "           Display on the same line with the default separator ' < '"
+.br
+.BR inline:SEPARATOR " Display on the same line with a non-default separator"
+.br
+.BR inline-right "     Display on the right end of the same line
 .br
 .BR hidden "           Do not display finder info"
 .br
@@ -361,9 +385,10 @@ Do not display horizontal separator on the info line. A synonym for
 \fB--separator=''\fB
 
 .TP
-.BI "--scrollbar=" "CHAR"
+.BI "--scrollbar=" "CHAR1[CHAR2]"
 Use the given character to render scrollbar. (default: '│' or ':' depending on
-\fB--no-unicode\fR).
+\fB--no-unicode\fR). The optional \fBCHAR2\fR is used to render scrollbar of
+the preview window.
 
 .TP
 .B "--no-scrollbar"
@@ -430,8 +455,10 @@ color mappings.
       \fBdisabled          \fRQuery string when search is disabled (\fB--disabled\fR)
     \fBinfo                \fRInfo line (match counters)
     \fBborder              \fRBorder around the window (\fB--border\fR and \fB--preview\fR)
-      \fBseparator     \fRHorizontal separator on info line
       \fBscrollbar         \fRScrollbar
+      \fBpreview-border    \fRBorder around the preview window (\fB--preview\fR)
+      \fBpreview-scrollbar \fRScrollbar
+      \fBseparator         \fRHorizontal separator on info line
     \fBlabel               \fRBorder label (\fB--border-label\fR and \fB--preview-label\fR)
       \fBpreview-label     \fRBorder label of the preview window (\fB--preview-label\fR)
     \fBprompt              \fRPrompt
@@ -564,6 +591,18 @@ e.g.
         echo "$i"
         sleep 0.01
       done'\fR
+
+Since 0.43.0, fzf has experimental support for Kitty graphics protocol,
+so if you use Kitty, you can make fzf display an image in the preview window.
+
+e.g.
+      \fBfzf --preview='
+        if file --mime-type {} | grep -qF "image/"; then
+          kitty icat --clear --transfer-mode=memory --stdin=no --place=${FZF_PREVIEW_COLUMNS}x${FZF_PREVIEW_LINES}@0x0 {} | sed \\$d
+        else
+          bat --color=always {}
+        fi
+      '\fR
 .RE
 
 .TP
@@ -580,6 +619,10 @@ Should be used with one of the following \fB--preview-window\fR options.
 .br
 .B * border-double
 .br
+.B * border-block
+.br
+.B * border-thinblock
+.br
 .B * border-horizontal
 .br
 .B * border-top
@@ -727,6 +770,21 @@ Read input delimited by ASCII NUL characters instead of newline characters
 .TP
 .B "--print0"
 Print output delimited by ASCII NUL characters instead of newline characters
+.TP
+.B "--no-clear"
+Do not clear finder interface on exit. If fzf was started in full screen mode,
+it will not switch back to the original screen, so you'll have to manually run
+\fBtput rmcup\fR to return. This option can be used to avoid flickering of the
+screen when your application needs to start fzf multiple times in order. (Note
+that in most cases, it is preferable to use \fBreload\fR action instead.)
+
+e.g.
+     \fBfoo=$(seq 100 | fzf --no-clear) || (
+       # Need to manually switch back to the main screen when cancelled
+       tput rmcup
+       exit 1
+     ) && seq "$foo" 100 | fzf
+
 .TP
 .B "--sync"
 Synchronous search for multi-staged filtering. If specified, fzf will launch
@@ -736,16 +794,31 @@ ncurses finder only after the input stream is complete.
 e.g. \fBfzf --multi | fzf --sync\fR
 .RE
 .TP
-.B "--listen=HTTP_PORT"
+.B "--listen[=HTTP_PORT]"
 Start HTTP server on the given port. It allows external processes to send
-actions to perform via POST method.
+actions to perform via POST method. If the port number is omitted or given as
+0, fzf will choose the port automatically and export it as \fBFZF_PORT\fR
+environment variable to the child processes started via \fBexecute\fR and
+\fBexecute-silent\fR actions. If \fBFZF_API_KEY\fR environment variable is
+set, the server would require sending an API key with the same value in the
+\fBx-api-key\fR HTTP header.
 
 e.g.
      \fB# Start HTTP server on port 6266
      fzf --listen 6266
 
+     # Get program state in JSON format (experimental)
+     curl localhost:6266
+
      # Send action to the server
      curl -XPOST localhost:6266 -d 'reload(seq 100)+change-prompt(hundred> )'
+
+     # Start HTTP server on port 6266 and send an authenticated action
+     export FZF_API_KEY="$(head -c 32 /dev/urandom | base64)"
+     curl -XPOST localhost:6266 -H "x-api-key: $FZF_API_KEY" -d 'change-query(yo)'
+
+     # Choose port automatically and export it as $FZF_PORT to the child process
+     fzf --listen --bind 'start:execute-silent:echo $FZF_PORT > /tmp/fzf-port'
      \fR
 .TP
 .B "--version"
@@ -763,6 +836,11 @@ this case make sure that the command is POSIX-compliant.
 .TP
 .B FZF_DEFAULT_OPTS
 Default options. e.g. \fBexport FZF_DEFAULT_OPTS="--extended --cycle"\fR
+.TP
+.B FZF_API_KEY
+Can be used to require an API key when using \fB--listen\fR option. If not set,
+no authentication will be required by the server. You can set this value if
+you need to protect against DNS rebinding and privilege escalation attacks.
 
 .SH EXIT STATUS
 .BR 0 "      Normal exit"
@@ -848,6 +926,8 @@ e.g.
 .br
 \fIctrl-space\fR
 .br
+\fIctrl-delete\fR
+.br
 \fIctrl-\\\fR
 .br
 \fIctrl-]\fR
@@ -916,6 +996,8 @@ e.g.
 .br
 \fIshift-right\fR
 .br
+\fIshift-delete\fR
+.br
 \fIalt-shift-up\fR
 .br
 \fIalt-shift-down\fR
@@ -930,6 +1012,22 @@ e.g.
 .br
 \fIdouble-click\fR
 .br
+\fIscroll-up\fR
+.br
+\fIscroll-down\fR
+.br
+\fIpreview-scroll-up\fR
+.br
+\fIpreview-scroll-down\fR
+.br
+\fIshift-left-click\fR
+.br
+\fIshift-right-click\fR
+.br
+\fIshift-scroll-up\fR
+.br
+\fIshift-scroll-down\fR
+.br
 or any single character
 
 .SS AVAILABLE EVENTS:
@@ -959,6 +1057,44 @@ e.g.
      \fB# Move cursor to the first entry whenever the query is changed
      fzf --bind change:first\fR
 .RE
+\fIfocus\fR
+.RS
+Triggered when the focus changes due to a vertical cursor movement or a search
+result update.
+
+e.g.
+     \fBfzf --bind 'focus:transform-preview-label:echo [ {} ]' --preview 'cat {}'
+
+     # Any action bound to the event runs synchronously and thus can make the interface sluggish
+     # e.g. lolcat isn't one of the fastest programs, and every cursor movement in
+     #      fzf will be noticeably affected by its execution time
+     fzf --bind 'focus:transform-preview-label:echo [ {} ] | lolcat -f' --preview 'cat {}'
+
+     # Beware not to introduce an infinite loop
+     seq 10 | fzf --bind 'focus:up' --cycle\fR
+.RE
+\fIone\fR
+.RS
+Triggered when there's only one match. \fBone:accept\fR binding is comparable
+to \fB--select-1\fR option, but the difference is that \fB--select-1\fR is only
+effective before the interactive finder starts but \fBone\fR event is triggered
+by the interactive finder.
+
+e.g.
+     \fB# Automatically select the only match
+     seq 10 | fzf --bind one:accept\fR
+.RE
+\fIzero\fR
+.RS
+Triggered when there's no match. \fBzero:abort\fR binding is comparable to
+\fB--exit-0\fR option, but the difference is that \fB--exit-0\fR is only
+effective before the interactive finder starts but \fBzero\fR event is
+triggered by the interactive finder.
+
+e.g.
+     \fB# Reload the candidate list when there's no match
+     echo $RANDOM | fzf --bind 'zero:reload(echo $RANDOM)+clear-query' --height 3\fR
+.RE
 
 \fIbackward-eof\fR
 .RS
@@ -981,9 +1117,13 @@ A key or an event can be bound to one or more of the following actions.
     \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-word\fR                \fIalt-b   shift-left\fR
+    \fBbecome(...)\fR                  (replace fzf process with the specified command; see below for the details)
     \fBbeginning-of-line\fR            \fIctrl-a  home\fR
     \fBcancel\fR                       (clear query string if not empty, abort fzf otherwise)
+    \fBchange-border-label(...)\fR     (change \fB--border-label\fR to the given string)
+    \fBchange-header(...)\fR           (change header to the given string; doesn't affect \fB--header-lines\fR)
     \fBchange-preview(...)\fR          (change \fB--preview\fR option)
+    \fBchange-preview-label(...)\fR    (change \fB--preview-label\fR to the given string)
     \fBchange-preview-window(...)\fR   (change \fB--preview-window\fR option; rotate through the multiple option sets separated by '|')
     \fBchange-prompt(...)\fR           (change prompt to the given string)
     \fBchange-query(...)\fR            (change query string to the given string)
@@ -1016,6 +1156,9 @@ A key or an event can be bound to one or more of the following actions.
     \fBpage-up\fR                      \fIpgup\fR
     \fBhalf-page-down\fR
     \fBhalf-page-up\fR
+    \fBhide-preview\fR
+    \fBoffset-down\fR                  (similar to CTRL-E of Vim)
+    \fBoffset-up\fR                    (similar to CTRL-Y of Vim)
     \fBpos(...)\fR                     (move cursor to the numeric position; negative number to count from the end)
     \fBprev-history\fR                 (\fIctrl-p\fR on \fB--history\fR)
     \fBprev-selected\fR                (move to the previous selected item)
@@ -1038,16 +1181,23 @@ A key or an event can be bound to one or more of the following actions.
     \fBreplace-query\fR                (replace query string with the current selection)
     \fBselect\fR
     \fBselect-all\fR                   (select all matches)
+    \fBshow-preview\fR
     \fBtoggle\fR                       (\fIright-click\fR)
     \fBtoggle-all\fR                   (toggle all matches)
     \fBtoggle+down\fR                  \fIctrl-i  (tab)\fR
+    \fBtoggle-header\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-preview\fR
     \fBtoggle-preview-wrap\fR
     \fBtoggle-search\fR                (toggle search functionality)
     \fBtoggle-sort\fR
+    \fBtoggle-track\fR
     \fBtoggle+up\fR                    \fIbtab    (shift-tab)\fR
+    \fBtrack\fR                        (track the current item; automatically disabled if focus changes)
+    \fBtransform-border-label(...)\fR  (transform border label using an external command)
+    \fBtransform-header(...)\fR        (transform header using an external command)
+    \fBtransform-preview-label(...)\fR (transform preview label using an external command)
     \fBtransform-prompt(...)\fR        (transform prompt string using an external command)
     \fBtransform-query(...)\fR         (transform query string using an external command)
     \fBunbind(...)\fR                  (unbind bindings)
@@ -1119,6 +1269,14 @@ On *nix systems, fzf runs the command with \fB$SHELL -c\fR if \fBSHELL\fR is
 set, otherwise with \fBsh -c\fR, so in this case make sure that the command is
 POSIX-compliant.
 
+\fBbecome(...)\fR action is similar to \fBexecute(...)\fR, but it replaces the
+current fzf process with the specified command using \fBexecve(2)\fR system
+call.
+
+    \fBfzf --bind "enter:become(vim {})"\fR
+
+\fBbecome(...)\fR is not supported on Windows.
+
 .SS RELOAD INPUT
 
 \fBreload(...)\fR action is used to dynamically update the input list

plugin/fzf.vim

@@ -164,7 +164,7 @@ function s:get_version(bin)
   if has_key(s:versions, a:bin)
     return s:versions[a:bin]
   end
-  let command = (&shell =~ 'powershell' ? '&' : '') . s:fzf_call('shellescape', a:bin) . ' --version --no-height'
+  let command = (&shell =~ 'powershell\|pwsh' ? '&' : '') . s:fzf_call('shellescape', a:bin) . ' --version --no-height'
   let output = systemlist(command)
   if v:shell_error || empty(output)
     return ''
@@ -456,6 +456,30 @@ function! s:writefile(...)
   endif
 endfunction
 
+function! s:extract_option(opts, name)
+  let opt = ''
+  let expect = 0
+  " There are a few cases where this function doesn't work as expected.
+  " Let's just assume such cases are extremely unlikely in real world.
+  "   e.g. --query --border
+  for word in split(a:opts)
+    if expect && word !~ '^"\=-'
+      let opt = opt . ' ' . word
+      let expect = 0
+    elseif word == '--no-'.a:name
+      let opt = ''
+    elseif word =~ '^--'.a:name.'='
+      let opt = word
+    elseif word =~ '^--'.a:name.'$'
+      let opt = word
+      let expect = 1
+    elseif expect
+      let expect = 0
+    endif
+  endfor
+  return opt
+endfunction
+
 function! fzf#run(...) abort
 try
   let [shell, shellslash, shellcmdflag, shellxquote] = s:use_sh()
@@ -511,10 +535,8 @@ try
     let height = s:calc_size(&lines, dict.down, dict)
     let optstr .= ' --height='.height
   endif
-  " Respect --border option given in 'options'
+  " Respect --border option given in $FZF_DEFAULT_OPTS and 'options'
-  if stridx(optstr, '--border') < 0 && stridx(optstr, '--no-border') < 0
+  let optstr = join([s:border_opt(get(dict, 'window', 0)), s:extract_option($FZF_DEFAULT_OPTS, 'border'), optstr])
-    let optstr .= s:border_opt(get(dict, 'window', 0))
-  endif
   let prev_default_command = $FZF_DEFAULT_COMMAND
   if len(source_command)
     let $FZF_DEFAULT_COMMAND = source_command
@@ -741,7 +763,7 @@ function! s:calc_size(max, val, dict)
     return size
   endif
   let margin = match(opts, '--inline-info\|--info[^-]\{-}inline') > match(opts, '--no-inline-info\|--info[^-]\{-}\(default\|hidden\)') ? 1 : 2
-  let margin += stridx(opts, '--border') > stridx(opts, '--no-border') ? 2 : 0
+  let margin += match(opts, '--border\([^-]\|$\)') > match(opts, '--no-border\([^-]\|$\)') ? 2 : 0
   if stridx(opts, '--header') > stridx(opts, '--no-header')
     let margin += len(split(opts, "\n"))
   endif
@@ -923,7 +945,7 @@ function! s:execute_term(dict, command, temps) abort
         let term_opts.curwin = 1
       endif
       call s:handle_ambidouble(term_opts)
-      let fzf.buf = term_start([&shell, &shellcmdflag, command], term_opts)
+      keepjumps let fzf.buf = term_start([&shell, &shellcmdflag, command], term_opts)
       if is_popup && exists('#TerminalWinOpen')
         doautocmd <nomodeline> TerminalWinOpen
       endif

shell/completion.bash

@@ -9,23 +9,24 @@
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
-if [[ $- =~ i ]]; then
+[[ $- =~ i ]] || return 0
+
 
 # To use custom commands instead of find, override _fzf_compgen_{path,dir}
-if ! declare -f _fzf_compgen_path > /dev/null; then
+if ! declare -F _fzf_compgen_path > /dev/null; then
   _fzf_compgen_path() {
     echo "$1"
     command find -L "$1" \
       -name .git -prune -o -name .hg -prune -o -name .svn -prune -o \( -type d -o -type f -o -type l \) \
-      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+      -a -not -path "$1" -print 2> /dev/null | command sed 's@^\./@@'
   }
 fi
 
-if ! declare -f _fzf_compgen_dir > /dev/null; then
+if ! declare -F _fzf_compgen_dir > /dev/null; then
   _fzf_compgen_dir() {
     command find -L "$1" \
       -name .git -prune -o -name .hg -prune -o -name .svn -prune -o -type d \
-      -a -not -path "$1" -print 2> /dev/null | sed 's@^\./@@'
+      -a -not -path "$1" -print 2> /dev/null | command sed 's@^\./@@'
   }
 fi
 
@@ -68,59 +69,185 @@ _fzf_opts_completion() {
   cur="${COMP_WORDS[COMP_CWORD]}"
   prev="${COMP_WORDS[COMP_CWORD-1]}"
   opts="
+    -h --help
     -x --extended
     -e --exact
+    --extended-exact
+    +x --no-extended
+    +e --no-exact
+    -q --query
+    -f --filter
+    --literal
+    --no-literal
     --algo
-    -i +i
+    --scheme
+    --expect
+    --no-expect
+    --enabled --no-phony
+    --disabled --phony
+    --tiebreak
+    --bind
+    --color
+    --toggle-sort
+    -d --delimiter
     -n --nth
     --with-nth
-    -d --delimiter
+    -s --sort
     +s --no-sort
+    --track
+    --no-track
     --tac
-    --tiebreak
+    --no-tac
+    -i
+    +i
     -m --multi
+    +m --no-multi
+    --ansi
+    --no-ansi
     --no-mouse
-    --bind
+    +c --no-color
-    --cycle
+    +2 --no-256
-    --no-hscroll
+    --black
-    --jump-labels
+    --no-black
-    --height
+    --bold
-    --literal
+    --no-bold
+    --layout
     --reverse
-    --margin
+    --no-reverse
+    --cycle
+    --no-cycle
+    --keep-right
+    --no-keep-right
+    --hscroll
+    --no-hscroll
+    --hscroll-off
+    --scroll-off
+    --filepath-word
+    --no-filepath-word
+    --info
+    --no-info
     --inline-info
+    --no-inline-info
+    --separator
+    --no-separator
+    --scrollbar
+    --no-scrollbar
+    --jump-labels
+    -1 --select-1
+    +1 --no-select-1
+    -0 --exit-0
+    +0 --no-exit-0
+    --read0
+    --no-read0
+    --print0
+    --no-print0
+    --print-query
+    --no-print-query
     --prompt
     --pointer
     --marker
-    --header
+    --sync
-    --header-lines
+    --no-sync
-    --ansi
+    --async
-    --tabstop
+    --no-history
-    --color
-    --no-bold
     --history
     --history-size
+    --no-header
+    --no-header-lines
+    --header
+    --header-lines
+    --header-first
+    --no-header-first
+    --ellipsis
     --preview
+    --no-preview
     --preview-window
-    -q --query
+    --height
-    -1 --select-1
+    --min-height
-    -0 --exit-0
+    --no-height
-    -f --filter
+    --no-margin
-    --print-query
+    --no-padding
-    --expect
+    --no-border
-    --sync"
+    --border
+    --no-border-label
+    --border-label
+    --border-label-pos
+    --no-preview-label
+    --preview-label
+    --preview-label-pos
+    --no-unicode
+    --unicode
+    --margin
+    --padding
+    --tabstop
+    --listen
+    --no-listen
+    --clear
+    --no-clear
+    --version
+    --"
 
   case "${prev}" in
+  --algo)
+    COMPREPLY=( $(compgen -W "v1 v2" -- "$cur") )
+    return 0
+    ;;
+  --scheme)
+    COMPREPLY=( $(compgen -W "default path history" -- "$cur") )
+    return 0
+    ;;
   --tiebreak)
-    COMPREPLY=( $(compgen -W "length begin end index" -- "$cur") )
+    COMPREPLY=( $(compgen -W "length chunk begin end index" -- "$cur") )
     return 0
     ;;
   --color)
-    COMPREPLY=( $(compgen -W "dark light 16 bw" -- "$cur") )
+    COMPREPLY=( $(compgen -W "dark light 16 bw no" -- "$cur") )
     return 0
     ;;
-  --history)
+  --layout)
-    COMPREPLY=()
+    COMPREPLY=( $(compgen -W "default reverse reverse-list" -- "$cur") )
+    return 0
+    ;;
+  --info)
+    COMPREPLY=( $(compgen -W "default right hidden inline inline-right" -- "$cur") )
+    return 0
+    ;;
+  --preview-window)
+    COMPREPLY=( $(compgen -W "
+      default
+      hidden
+      nohidden
+      wrap
+      nowrap
+      cycle
+      nocycle
+      up top
+      down bottom
+      left
+      right
+      rounded border border-rounded
+      sharp border-sharp
+      border-bold
+      border-block
+      border-thinblock
+      border-double
+      noborder border-none
+      border-horizontal
+      border-vertical
+      border-up border-top
+      border-down border-bottom
+      border-left
+      border-right
+      follow
+      nofollow" -- "$cur") )
+    return 0
+    ;;
+  --border)
+    COMPREPLY=( $(compgen -W "rounded sharp bold block thinblock double horizontal vertical top bottom left right none" -- "$cur") )
+    return 0
+    ;;
+  --border-label-pos|--preview-label-pos)
+    COMPREPLY=( $(compgen -W "center bottom top" -- "$cur") )
     return 0
     ;;
   esac
@@ -170,9 +297,9 @@ __fzf_generic_path_completion() {
   COMPREPLY=()
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
-  if [[ "$cur" == *"$trigger" ]]; then
+  if [[ "$cur" == *"$trigger" ]] && [[ $cur != *'$('* ]] && [[ $cur != *':='* ]] && [[ $cur != *'`'* ]]; then
     base=${cur:0:${#cur}-${#trigger}}
-    eval "base=$base"
+    eval "base=$base" 2> /dev/null || return
 
     dir=
     [[ $base = *"/"* ]] && dir="$base"
@@ -182,7 +309,7 @@ __fzf_generic_path_completion() {
         leftover=${leftover/#\/}
         [[ -z "$dir" ]] && dir='.'
         [[ "$dir" != "/" ]] && dir="${dir/%\//}"
-        matches=$(eval "$1 $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_COMPLETION_OPTS-} $2" __fzf_comprun "$4" -q "$leftover" | while read -r item; do
+        matches=$(eval "$1 $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --scheme=path --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_COMPLETION_OPTS-} $2" __fzf_comprun "$4" -q "$leftover" | while read -r item; do
           printf "%q " "${item%$3}$3"
         done)
         matches=${matches% }
@@ -195,7 +322,7 @@ __fzf_generic_path_completion() {
         printf '\e[5n'
         return 0
       fi
-      dir=$(dirname "$dir")
+      dir=$(command dirname "$dir")
       [[ "$dir" =~ /$ ]] || dir="$dir"/
     done
   else
@@ -229,16 +356,16 @@ _fzf_complete() {
   fi
 
   local cur selected trigger cmd post
-  post="$(caller 0 | awk '{print $2}')_post"
+  post="$(caller 0 | command awk '{print $2}')_post"
-  type -t "$post" > /dev/null 2>&1 || post=cat
+  type -t "$post" > /dev/null 2>&1 || post='command cat'
 
   cmd="${COMP_WORDS[0]//[^A-Za-z0-9_=]/_}"
   trigger=${FZF_COMPLETION_TRIGGER-'**'}
   cur="${COMP_WORDS[COMP_CWORD]}"
-  if [[ "$cur" == *"$trigger" ]]; then
+  if [[ "$cur" == *"$trigger" ]] && [[ $cur != *'$('* ]] && [[ $cur != *':='* ]] && [[ $cur != *'`'* ]]; then
     cur=${cur:0:${#cur}-${#trigger}}
 
-    selected=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_COMPLETION_OPTS-} $str_arg" __fzf_comprun "${rest[0]}" "${args[@]}" -q "$cur" | $post | tr '\n' ' ')
+    selected=$(FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_COMPLETION_OPTS-} $str_arg" __fzf_comprun "${rest[0]}" "${args[@]}" -q "$cur" | $post | command tr '\n' ' ')
     selected=${selected% } # Strip trailing space not to repeat "-o nospace"
     if [[ -n "$selected" ]]; then
       COMPREPLY=("$selected")
@@ -270,33 +397,68 @@ _fzf_complete_kill() {
 }
 
 _fzf_proc_completion() {
-  _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
+  _fzf_complete -m --header-lines=1 --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
-    command ps -ef | sed 1d
+    command ps -eo user,pid,ppid,start,time,command 2> /dev/null ||
+      command ps -eo user,pid,ppid,time,args # For BusyBox
   )
 }
 
 _fzf_proc_completion_post() {
-  awk '{print $2}'
+  command awk '{print $2}'
 }
 
+# To use custom hostname lists, override __fzf_list_hosts.
+# The function is expected to print hostnames, one per line as well as in the
+# desired sorting and with any duplicates removed, to standard output.
+#
+# e.g.
+#   # Use bash-completions’s _known_hosts_real() for getting the list of hosts
+#   __fzf_list_hosts() {
+#     # Set the local attribute for any non-local variable that is set by _known_hosts_real()
+#     local COMPREPLY=()
+#     _known_hosts_real ''
+#     printf '%s\n' "${COMPREPLY[@]}" | command sort -u --version-sort
+#   }
+if ! declare -F __fzf_list_hosts > /dev/null; then
+  __fzf_list_hosts() {
+    command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | command awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?%]') \
+      <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts 2> /dev/null | command tr ',' '\n' | command tr -d '[' | command awk '{ print $1 " " $1 }') \
+      <(command grep -v '^\s*\(#\|$\)' /etc/hosts 2> /dev/null | command grep -Fv '0.0.0.0') |
+      command awk '{if (length($2) > 0) {print $2}}' | command sort -u
+  }
+fi
+
 _fzf_host_completion() {
-  _fzf_complete +m -- "$@" < <(
+  _fzf_complete +m -- "$@" < <(__fzf_list_hosts)
-    command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?%]') \
+}
-        <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
+
-        <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
+# Values for $1 $2 $3 are described here
-        awk '{if (length($2) > 0) {print $2}}' | sort -u
+# https://www.gnu.org/software/bash/manual/html_node/Programmable-Completion.html
-  )
+# > the first argument ($1) is the name of the command whose arguments are being completed,
+# > the second argument ($2) is the word being completed,
+# > and the third argument ($3) is the word preceding the word being completed on the current command line.
+_fzf_complete_ssh() {
+  case $3 in
+    -i|-F|-E)
+      _fzf_path_completion "$@"
+      ;;
+    *)
+      local user=
+      [[ "$2" =~ '@' ]] && user="${2%%@*}@"
+      _fzf_complete +m -- "$@" < <(__fzf_list_hosts | command awk -v user="$user" '{print user $0}')
+      ;;
+  esac
 }
 
 _fzf_var_completion() {
   _fzf_complete -m -- "$@" < <(
-    declare -xp | sed -En 's|^declare [^ ]+ ([^=]+).*|\1|p'
+    declare -xp | command sed -En 's|^declare [^ ]+ ([^=]+).*|\1|p'
   )
 }
 
 _fzf_alias_completion() {
   _fzf_complete -m -- "$@" < <(
-    alias | sed -En 's|^alias ([^=]+).*|\1|p'
+    alias | command sed -En 's|^alias ([^=]+).*|\1|p'
   )
 }
 
@@ -309,8 +471,8 @@ complete -o default -F _fzf_opts_completion fzf-tmux
 
 d_cmds="${FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir}"
 a_cmds="
-  awk cat diff diff3
+  awk bat cat diff diff3
-  emacs emacsclient ex file ftp g++ gcc gvim head hg java
+  emacs emacsclient ex file ftp g++ gcc gvim head hg hx java
   javac ld less more mvim nvim patch perl python ruby
   sed sftp sort source tail tee uniq vi view vim wc xdg-open
   basename bunzip2 bzip2 chmod chown curl cp dirname du
@@ -350,6 +512,9 @@ for cmd in $d_cmds; do
   __fzf_defc "$cmd" _fzf_dir_completion "-o nospace -o dirnames"
 done
 
+# ssh
+__fzf_defc ssh _fzf_complete_ssh "-o default -o bashdefault"
+
 unset cmd d_cmds a_cmds
 
 _fzf_setup_completion() {
@@ -373,9 +538,7 @@ _fzf_setup_completion() {
 }
 
 # Environment variables / Aliases / Hosts / Process
-_fzf_setup_completion 'var'   export unset
+_fzf_setup_completion 'var'   export unset printenv
 _fzf_setup_completion 'alias' unalias
-_fzf_setup_completion 'host'  ssh telnet
+_fzf_setup_completion 'host'  telnet
 _fzf_setup_completion 'proc'  kill
-
-fi

shell/completion.zsh

@@ -9,6 +9,9 @@
 # - $FZF_COMPLETION_TRIGGER (default: '**')
 # - $FZF_COMPLETION_OPTS    (default: empty)
 
+[[ -o interactive ]] || return 0
+
+
 # Both branches of the following `if` do the same thing -- define
 # __fzf_completion_options such that `eval $__fzf_completion_options` sets
 # all options to the same values they currently have. We'll do just that at
@@ -67,15 +70,12 @@ fi
 # control. There are several others that could wreck havoc if they are set
 # to values we don't expect. With the following `emulate` command we
 # sidestep this issue entirely.
-'emulate' 'zsh' '-o' 'no_aliases'
+'builtin' 'emulate' 'zsh' && 'builtin' 'setopt' 'no_aliases'
 
 # This brace is the start of try-always block. The `always` part is like
 # `finally` in lesser languages. We use it to *always* restore user options.
 {
 
-# Bail out if not interactive shell.
-[[ -o interactive ]] || return 0
-
 # To use custom commands instead of find, override _fzf_compgen_{path,dir}
 if ! declare -f _fzf_compgen_path > /dev/null; then
   _fzf_compgen_path() {
@@ -137,7 +137,10 @@ __fzf_generic_path_completion() {
   tail=$6
 
   setopt localoptions nonomatch
-  eval "base=$base"
+  if [[ $base = *'$('* ]] || [[ $base = *'<('* ]] || [[ $base = *'>('* ]] || [[ $base = *':='* ]] || [[ $base = *'`'* ]]; then
+    return
+  fi
+  eval "base=$base" 2> /dev/null || return
   [[ $base = *"/"* ]] && dir="$base"
   while [ 1 ]; do
     if [[ -z "$dir" || -d ${dir} ]]; then
@@ -145,7 +148,7 @@ __fzf_generic_path_completion() {
       leftover=${leftover/#\/}
       [ -z "$dir" ] && dir='.'
       [ "$dir" != "/" ] && dir="${dir/%\//}"
-      matches=$(eval "$compgen $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_COMPLETION_OPTS-}" __fzf_comprun "$cmd" ${(Q)${(Z+n+)fzf_opts}} -q "$leftover" | while read item; do
+      matches=$(eval "$compgen $(printf %q "$dir")" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --scheme=path --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_COMPLETION_OPTS-}" __fzf_comprun "$cmd" ${(Q)${(Z+n+)fzf_opts}} -q "$leftover" | while read item; do
         item="${item%$suffix}$suffix"
         echo -n "${(q)item} "
       done)
@@ -215,21 +218,37 @@ _fzf_complete() {
   command rm -f "$fifo"
 }
 
-_fzf_complete_telnet() {
+# To use custom hostname lists, override __fzf_list_hosts.
-  _fzf_complete +m -- "$@" < <(
+# The function is expected to print hostnames, one per line as well as in the
-    command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0' |
+# desired sorting and with any duplicates removed, to standard output.
-        awk '{if (length($2) > 0) {print $2}}' | sort -u
+if ! declare -f __fzf_list_hosts > /dev/null; then
-  )
+  __fzf_list_hosts() {
-}
-
-_fzf_complete_ssh() {
-  _fzf_complete +m -- "$@" < <(
     setopt localoptions nonomatch
     command cat <(command tail -n +1 ~/.ssh/config ~/.ssh/config.d/* /etc/ssh/ssh_config 2> /dev/null | command grep -i '^\s*host\(name\)\? ' | awk '{for (i = 2; i <= NF; i++) print $1 " " $i}' | command grep -v '[*?%]') \
-        <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
+      <(command grep -oE '^[[a-z0-9.,:-]+' ~/.ssh/known_hosts 2> /dev/null | tr ',' '\n' | tr -d '[' | awk '{ print $1 " " $1 }') \
-        <(command grep -v '^\s*\(#\|$\)' /etc/hosts | command grep -Fv '0.0.0.0') |
+      <(command grep -v '^\s*\(#\|$\)' /etc/hosts 2> /dev/null | command grep -Fv '0.0.0.0') |
       awk '{if (length($2) > 0) {print $2}}' | sort -u
-  )
+  }
+fi
+
+_fzf_complete_telnet() {
+  _fzf_complete +m -- "$@" < <(__fzf_list_hosts)
+}
+
+# The first and the only argument is the LBUFFER without the current word that contains the trigger.
+# The current word without the trigger is in the $prefix variable passed from the caller.
+_fzf_complete_ssh() {
+  local tokens=(${(z)1})
+  case ${tokens[-1]} in
+    -i|-F|-E)
+      _fzf_path_completion "$prefix" "$1"
+      ;;
+    *)
+      local user=
+      [[ $prefix =~ @ ]] && user="${prefix%%@*}@"
+      _fzf_complete +m -- "$@" < <(__fzf_list_hosts | awk -v user="$user" '{print user $0}')
+      ;;
+  esac
 }
 
 _fzf_complete_export() {
@@ -251,8 +270,9 @@ _fzf_complete_unalias() {
 }
 
 _fzf_complete_kill() {
-  _fzf_complete -m --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
+  _fzf_complete -m --header-lines=1 --preview 'echo {}' --preview-window down:3:wrap --min-height 15 -- "$@" < <(
-    command ps -ef | sed 1d
+    command ps -eo user,pid,ppid,start,time,command 2> /dev/null ||
+      command ps -eo user,pid,ppid,time,args # For BusyBox
   )
 }
 
@@ -292,6 +312,9 @@ fzf-completion() {
     d_cmds=(${=FZF_COMPLETION_DIR_COMMANDS:-cd pushd rmdir})
 
     [ -z "$trigger"      ] && prefix=${tokens[-1]} || prefix=${tokens[-1]:0:-${#trigger}}
+    if [[ $prefix = *'$('* ]] || [[ $prefix = *'<('* ]] || [[ $prefix = *'>('* ]] || [[ $prefix = *':='* ]] || [[ $prefix = *'`'* ]]; then
+      return
+    fi
     [ -n "${tokens[-1]}" ] && lbuf=${lbuf:0:-${#tokens[-1]}}
 
     if eval "type _fzf_complete_${cmd} > /dev/null"; then

shell/key-bindings.bash

@@ -11,15 +11,18 @@
 # - $FZF_ALT_C_COMMAND
 # - $FZF_ALT_C_OPTS
 
+[[ $- =~ i ]] || return 0
+
+
 # Key bindings
 # ------------
 __fzf_select__() {
   local cmd opts
-  cmd="${FZF_CTRL_T_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  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-"}"
+    -o -type l -print 2> /dev/null | command cut -b3-"}"
-  opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore --reverse ${FZF_DEFAULT_OPTS-} ${FZF_CTRL_T_OPTS-} -m"
+  opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore --reverse --scheme=path ${FZF_DEFAULT_OPTS-} ${FZF_CTRL_T_OPTS-} -m"
   eval "$cmd" |
     FZF_DEFAULT_OPTS="$opts" $(__fzfcmd) "$@" |
     while read -r item; do
@@ -27,8 +30,6 @@ __fzf_select__() {
     done
 }
 
-if [[ $- =~ i ]]; then
-
 __fzfcmd() {
   [[ -n "${TMUX_PANE-}" ]] && { [[ "${FZF_TMUX:-0}" != 0 ]] || [[ -n "${FZF_TMUX_OPTS-}" ]]; } &&
     echo "fzf-tmux ${FZF_TMUX_OPTS:--d${FZF_TMUX_HEIGHT:-40%}} -- " || echo "fzf"
@@ -42,19 +43,21 @@ fzf-file-widget() {
 
 __fzf_cd__() {
   local cmd opts dir
-  cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  cmd="${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-"}"
+    -o -type d -print 2> /dev/null | command cut -b3-"}"
-  opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore --reverse ${FZF_DEFAULT_OPTS-} ${FZF_ALT_C_OPTS-} +m"
+  opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore --reverse --scheme=path ${FZF_DEFAULT_OPTS-} ${FZF_ALT_C_OPTS-} +m"
-  dir=$(eval "$cmd" | FZF_DEFAULT_OPTS="$opts" $(__fzfcmd)) && printf 'builtin cd -- %q' "$dir"
+  dir=$(set +o pipefail; eval "$cmd" | FZF_DEFAULT_OPTS="$opts" $(__fzfcmd)) && printf 'builtin cd -- %q' "$dir"
 }
 
+if command -v perl > /dev/null; then
   __fzf_history__() {
     local output opts script
     opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} -n2..,.. --scheme=history --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=$(
+      set +o pipefail
       builtin fc -lnr -2147483648 |
-      last_hist=$(HISTTIMEFORMAT='' builtin history 1) perl -n -l0 -e "$script" |
+        last_hist=$(HISTTIMEFORMAT='' builtin history 1) command perl -n -l0 -e "$script" |
         FZF_DEFAULT_OPTS="$opts" $(__fzfcmd) --query "$READLINE_LINE"
     ) || return
     READLINE_LINE=${output#*$'\t'}
@@ -64,6 +67,36 @@ __fzf_history__() {
       READLINE_POINT=0x7fffffff
     fi
   }
+else # awk - fallback for POSIX systems
+  __fzf_history__() {
+    local output opts script n x y z d
+    if [[ -z $__fzf_awk ]]; then
+      __fzf_awk=awk
+      # choose the faster mawk if: it's installed && build date >= 20230322 && version >= 1.3.4
+      IFS=' .' read n x y z d <<< $(command mawk -W version 2> /dev/null)
+      [[ $n == mawk ]] && (( d >= 20230302 && (x *1000 +y) *1000 +z >= 1003004 )) && __fzf_awk=mawk
+    fi
+    opts="--height ${FZF_TMUX_HEIGHT:-40%} --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} -n2..,.. --scheme=history --bind=ctrl-r:toggle-sort ${FZF_CTRL_R_OPTS-} +m --read0"
+    [[ $(HISTTIMEFORMAT='' builtin history 1) =~ [[:digit:]]+ ]]    # how many history entries
+    script='function P(b) { ++n; sub(/^[ *]/, "", b); if (!seen[b]++) { printf "%d\t%s%c", '$((BASH_REMATCH + 1))' - n, b, 0 } }
+    NR==1 { b = substr($0, 2); next }
+    /^\t/ { P(b); b = substr($0, 2); next }
+    { b = b RS $0 }
+    END { if (NR) P(b) }'
+    output=$(
+      set +o pipefail
+      builtin fc -lnr -2147483648 2> /dev/null |   # ( $'\t '<lines>$'\n' )* ; <lines> ::= [^\n]* ( $'\n'<lines> )*
+        command $__fzf_awk "$script"           |   # ( <counter>$'\t'<lines>$'\000' )*
+        FZF_DEFAULT_OPTS="$opts" $(__fzfcmd) --query "$READLINE_LINE"
+    ) || return
+    READLINE_LINE=${output#*$'\t'}
+    if [[ -z "$READLINE_POINT" ]]; then
+      echo "$READLINE_LINE"
+    else
+      READLINE_POINT=0x7fffffff
+    fi
+  }
+fi
 
 # Required to refresh the prompt after fzf
 bind -m emacs-standard '"\er": redraw-current-line'
@@ -79,7 +112,7 @@ if (( BASH_VERSINFO[0] < 4 )); then
   bind -m vi-insert '"\C-t": "\C-z\C-t\C-z"'
 
   # CTRL-R - Paste the selected command from history into the command line
-  bind -m emacs-standard '"\C-r": "\C-e \C-u\C-y\ey\C-u"$(__fzf_history__)"\e\C-e\er"'
+  bind -m emacs-standard '"\C-r": "\C-e \C-u\C-y\ey\C-u`__fzf_history__`\e\C-e\er"'
   bind -m vi-command '"\C-r": "\C-z\C-r\C-z"'
   bind -m vi-insert '"\C-r": "\C-z\C-r\C-z"'
 else
@@ -98,5 +131,3 @@ fi
 bind -m emacs-standard '"\ec": " \C-b\C-k \C-u`__fzf_cd__`\e\C-e\er\C-m\C-y\C-h\e \C-y\ey\C-x\C-x\C-d"'
 bind -m vi-command '"\ec": "\C-z\ec\C-z"'
 bind -m vi-insert '"\ec": "\C-z\ec\C-z"'
-
-fi

shell/key-bindings.fish

@@ -11,6 +11,9 @@
 # - $FZF_ALT_C_COMMAND
 # - $FZF_ALT_C_OPTS
 
+status is-interactive; or exit 0
+
+
 # Key bindings
 # ------------
 function fzf_key_bindings
@@ -22,17 +25,17 @@ function fzf_key_bindings
     set -l fzf_query $commandline[2]
     set -l prefix $commandline[3]
 
-    # "-path \$dir'*/\\.*'" matches hidden files/folders inside $dir but not
+    # "-path \$dir'*/.*'" matches hidden files/folders inside $dir but not
     # $dir itself, even if hidden.
     test -n "$FZF_CTRL_T_COMMAND"; or set -l FZF_CTRL_T_COMMAND "
-    command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
+    command find -L \$dir -mindepth 1 \\( -path \$dir'*/.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
     -o -type f -print \
     -o -type d -print \
     -o -type l -print 2> /dev/null | sed 's@^\./@@'"
 
     test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     begin
-      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS"
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse --scheme=path --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_CTRL_T_OPTS"
       eval "$FZF_CTRL_T_COMMAND | "(__fzfcmd)' -m --query "'$fzf_query'"' | while read -l r; set result $result $r; end
     end
     if [ -z "$result" ]
@@ -79,11 +82,11 @@ function fzf_key_bindings
     set -l prefix $commandline[3]
 
     test -n "$FZF_ALT_C_COMMAND"; or set -l FZF_ALT_C_COMMAND "
-    command find -L \$dir -mindepth 1 \\( -path \$dir'*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
+    command find -L \$dir -mindepth 1 \\( -path \$dir'*/.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' \\) -prune \
     -o -type d -print 2> /dev/null | sed 's@^\./@@'"
     test -n "$FZF_TMUX_HEIGHT"; or set FZF_TMUX_HEIGHT 40%
     begin
-      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS"
+      set -lx FZF_DEFAULT_OPTS "--height $FZF_TMUX_HEIGHT --reverse --scheme=path --bind=ctrl-z:ignore $FZF_DEFAULT_OPTS $FZF_ALT_C_OPTS"
       eval "$FZF_ALT_C_COMMAND | "(__fzfcmd)' +m --query "'$fzf_query'"' | read -l result
 
       if [ -n "$result" ]

shell/key-bindings.zsh

@@ -11,6 +11,9 @@
 # - $FZF_ALT_C_COMMAND
 # - $FZF_ALT_C_OPTS
 
+[[ -o interactive ]] || return 0
+
+
 # Key bindings
 # ------------
 
@@ -32,21 +35,19 @@ else
   }
 fi
 
-'emulate' 'zsh' '-o' 'no_aliases'
+'builtin' 'emulate' 'zsh' && 'builtin' 'setopt' 'no_aliases'
 
 {
 
-[[ -o interactive ]] || return 0
-
 # CTRL-T - Paste the selected file path(s) into the command line
 __fsel() {
-  local cmd="${FZF_CTRL_T_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  local cmd="${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-"}"
   setopt localoptions pipefail no_aliases 2> /dev/null
   local item
-  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 item; do
+  eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --scheme=path --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_CTRL_T_OPTS-}" $(__fzfcmd) -m "$@" | while read item; do
     echo -n "${(q)item} "
   done
   local ret=$?
@@ -72,10 +73,10 @@ bindkey -M viins '^T' fzf-file-widget
 
 # ALT-C - cd into the selected directory
 fzf-cd-widget() {
-  local cmd="${FZF_ALT_C_COMMAND:-"command find -L . -mindepth 1 \\( -path '*/\\.*' -o -fstype 'sysfs' -o -fstype 'devfs' -o -fstype 'devtmpfs' -o -fstype 'proc' \\) -prune \
+  local cmd="${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-"}"
   setopt localoptions pipefail no_aliases 2> /dev/null
-  local dir="$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_ALT_C_OPTS-}" $(__fzfcmd) +m)"
+  local dir="$(eval "$cmd" | FZF_DEFAULT_OPTS="--height ${FZF_TMUX_HEIGHT:-40%} --reverse --scheme=path --bind=ctrl-z:ignore ${FZF_DEFAULT_OPTS-} ${FZF_ALT_C_OPTS-}" $(__fzfcmd) +m)"
   if [[ -z "$dir" ]]; then
     zle redisplay
     return 0

src/algo/algo.go

@@ -221,9 +221,9 @@ func charClassOfAscii(char rune) charClass {
 		return charUpper
 	} else if char >= '0' && char <= '9' {
 		return charNumber
-	} else if strings.IndexRune(whiteChars, char) >= 0 {
+	} else if strings.ContainsRune(whiteChars, char) {
 		return charWhite
-	} else if strings.IndexRune(delimiterChars, char) >= 0 {
+	} else if strings.ContainsRune(delimiterChars, char) {
 		return charDelimiter
 	}
 	return charNonWord
@@ -240,7 +240,7 @@ func charClassOfNonAscii(char rune) charClass {
 		return charLetter
 	} else if unicode.IsSpace(char) {
 		return charWhite
-	} else if strings.IndexRune(delimiterChars, char) >= 0 {
+	} else if strings.ContainsRune(delimiterChars, char) {
 		return charDelimiter
 	}
 	return charNonWord

src/ansi.go

@@ -381,10 +381,19 @@ func interpretCode(ansiCode string, prevState *ansiState) ansiState {
 					state.attr = state.attr | tui.Reverse
 				case 9:
 					state.attr = state.attr | tui.StrikeThrough
+				case 22:
+					state.attr = state.attr &^ tui.Bold
+					state.attr = state.attr &^ tui.Dim
 				case 23: // tput rmso
 					state.attr = state.attr &^ tui.Italic
 				case 24: // tput rmul
 					state.attr = state.attr &^ tui.Underline
+				case 25:
+					state.attr = state.attr &^ tui.Blink
+				case 27:
+					state.attr = state.attr &^ tui.Reverse
+				case 29:
+					state.attr = state.attr &^ tui.StrikeThrough
 				case 0:
 					state.fg = -1
 					state.bg = -1

src/constants.go

@@ -58,9 +58,9 @@ var defaultCommand string
 
 func init() {
 	if !util.IsWindows() {
-		defaultCommand = `set -o pipefail; 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 l -print 2> /dev/null | cut -b3-`
+		defaultCommand = `set -o pipefail; 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 l -print 2> /dev/null | cut -b3-`
 	} else if os.Getenv("TERM") == "cygwin" {
-		defaultCommand = `sh -c "command find -L . -mindepth 1 -path '*/\.*' -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-"`
+		defaultCommand = `sh -c "command find -L . -mindepth 1 -path '*/.*' -prune -o -type f -print -o -type l -print 2> /dev/null | cut -b3-"`
 	}
 }
 

src/core.go

@@ -138,7 +138,9 @@ func Run(opts *Options, version string, revision string) {
 			opts.Fuzzy, opts.FuzzyAlgo, opts.Extended, opts.Case, opts.Normalize, forward, withPos,
 			opts.Filter == nil, opts.Nth, opts.Delimiter, runes)
 	}
-	matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox)
+	inputRevision := 0
+	snapshotRevision := 0
+	matcher := NewMatcher(patternBuilder, sort, opts.Tac, eventBox, inputRevision)
 
 	// Filtering mode
 	if opts.Filter != nil {
@@ -209,8 +211,6 @@ func Run(opts *Options, version string, revision string) {
 
 	// Event coordination
 	reading := true
-	clearCache := util.Once(false)
-	clearSelection := util.Once(false)
 	ticks := 0
 	var nextCommand *string
 	eventBox.Watch(EvtReadNew)
@@ -219,6 +219,7 @@ func Run(opts *Options, version string, revision string) {
 	determine := func(final bool) {
 		if heightUnknown {
 			if total >= maxFit || final {
+				deferred = false
 				heightUnknown = false
 				terminal.startChan <- fitpad{util.Min(total, maxFit), padHeight}
 			}
@@ -230,26 +231,20 @@ func Run(opts *Options, version string, revision string) {
 
 	useSnapshot := false
 	var snapshot []*Chunk
-	var prevSnapshot []*Chunk
 	var count int
 	restart := func(command string) {
 		reading = true
-		clearCache = util.Once(true)
-		clearSelection = util.Once(true)
-		// We should not update snapshot if reload is triggered again while
-		// the previous reload is in progress
-		if useSnapshot && prevSnapshot != nil {
-			snapshot, count = chunkList.Snapshot()
-		}
 		chunkList.Clear()
 		itemIndex = 0
+		inputRevision++
 		header = make([]string, 0, opts.HeaderLines)
 		go reader.restart(command)
 	}
 	for {
 		delay := true
 		ticks++
-		input := func(reloaded bool) []rune {
+		input := func() []rune {
+			reloaded := snapshotRevision != inputRevision
 			paused, input := terminal.Input()
 			if reloaded && paused {
 				query = []rune{}
@@ -279,29 +274,30 @@ func Run(opts *Options, version string, revision string) {
 					}
 					if useSnapshot && evt == EvtReadFin {
 						useSnapshot = false
-						prevSnapshot = nil
 					}
 					if !useSnapshot {
 						snapshot, count = chunkList.Snapshot()
+						snapshotRevision = inputRevision
 					}
 					total = count
 					terminal.UpdateCount(total, !reading, value.(*string))
 					if opts.Sync {
 						opts.Sync = false
-						terminal.UpdateList(PassMerger(&snapshot, opts.Tac), false)
+						terminal.UpdateList(PassMerger(&snapshot, opts.Tac, snapshotRevision))
 					}
 					if heightUnknown && !deferred {
 						determine(!reading)
 					}
-					reset := !useSnapshot && clearCache()
+					matcher.Reset(snapshot, input(), false, !reading, sort, snapshotRevision)
-					matcher.Reset(snapshot, input(reset), false, !reading, sort, reset)
 
 				case EvtSearchNew:
 					var command *string
+					var changed bool
 					switch val := value.(type) {
 					case searchRequest:
 						sort = val.sort
 						command = val.command
+						changed = val.changed
 						if command != nil {
 							useSnapshot = val.sync
 						}
@@ -313,13 +309,20 @@ func Run(opts *Options, version string, revision string) {
 						} else {
 							restart(*command)
 						}
+					}
+					if !changed {
 						break
 					}
 					if !useSnapshot {
-						snapshot, _ = chunkList.Snapshot()
+						newSnapshot, _ := chunkList.Snapshot()
+						// We want to avoid showing empty list when reload is triggered
+						// and the query string is changed at the same time i.e. command != nil && changed
+						if command == nil || len(newSnapshot) > 0 {
+							snapshot = newSnapshot
+							snapshotRevision = inputRevision
 						}
-					reset := !useSnapshot && clearCache()
+					}
-					matcher.Reset(snapshot, input(reset), true, !reading, sort, reset)
+					matcher.Reset(snapshot, input(), true, !reading, sort, snapshotRevision)
 					delay = false
 
 				case EvtSearchProgress:
@@ -359,7 +362,7 @@ func Run(opts *Options, version string, revision string) {
 								determine(val.final)
 							}
 						}
-						terminal.UpdateList(val, clearSelection())
+						terminal.UpdateList(val)
 					}
 				}
 			}

src/history.go

@@ -2,7 +2,6 @@ package fzf
 
 import (
 	"errors"
-	"io/ioutil"
 	"os"
 	"strings"
 )
@@ -26,12 +25,12 @@ func NewHistory(path string, maxSize int) (*History, error) {
 	}
 
 	// Read history file
-	data, err := ioutil.ReadFile(path)
+	data, err := os.ReadFile(path)
 	if err != nil {
 		// If it doesn't exist, check if we can create a file with the name
 		if os.IsNotExist(err) {
 			data = []byte{}
-			if err := ioutil.WriteFile(path, data, 0600); err != nil {
+			if err := os.WriteFile(path, data, 0600); err != nil {
 				return nil, fmtError(err)
 			}
 		} else {
@@ -62,11 +61,11 @@ func (h *History) append(line string) error {
 		lines = lines[len(lines)-h.maxSize:]
 	}
 	h.lines = append(lines, "")
-	return ioutil.WriteFile(h.path, []byte(strings.Join(h.lines, "\n")), 0600)
+	return os.WriteFile(h.path, []byte(strings.Join(h.lines, "\n")), 0600)
 }
 
 func (h *History) override(str string) {
-	// You can update the history but they're not written to the file
+	// You can update the history, but they're not written to the file
 	if h.cursor == len(h.lines)-1 {
 		h.lines[h.cursor] = str
 	} else if h.cursor < len(h.lines)-1 {

src/history_test.go

@@ -1,7 +1,6 @@
 package fzf
 
 import (
-	"io/ioutil"
 	"os"
 	"runtime"
 	"testing"
@@ -25,7 +24,7 @@ func TestHistory(t *testing.T) {
 		}
 	}
 
-	f, _ := ioutil.TempFile("", "fzf-history")
+	f, _ := os.CreateTemp("", "fzf-history")
 	f.Close()
 
 	{ // Append lines

src/matcher.go

@@ -16,7 +16,7 @@ type MatchRequest struct {
 	pattern  *Pattern
 	final    bool
 	sort     bool
-	clearCache bool
+	revision int
 }
 
 // Matcher is responsible for performing search
@@ -29,6 +29,7 @@ type Matcher struct {
 	partitions     int
 	slab           []*util.Slab
 	mergerCache    map[string]*Merger
+	revision       int
 }
 
 const (
@@ -38,7 +39,7 @@ const (
 
 // NewMatcher returns a new Matcher
 func NewMatcher(patternBuilder func([]rune) *Pattern,
-	sort bool, tac bool, eventBox *util.EventBox) *Matcher {
+	sort bool, tac bool, eventBox *util.EventBox, revision int) *Matcher {
 	partitions := util.Min(numPartitionsMultiplier*runtime.NumCPU(), maxPartitions)
 	return &Matcher{
 		patternBuilder: patternBuilder,
@@ -48,7 +49,8 @@ func NewMatcher(patternBuilder func([]rune) *Pattern,
 		reqBox:         util.NewEventBox(),
 		partitions:     partitions,
 		slab:           make([]*util.Slab, partitions),
-		mergerCache:    make(map[string]*Merger)}
+		mergerCache:    make(map[string]*Merger),
+		revision:       revision}
 }
 
 // Loop puts Matcher in action
@@ -70,8 +72,9 @@ func (m *Matcher) Loop() {
 			events.Clear()
 		})
 
-		if request.sort != m.sort || request.clearCache {
+		if request.sort != m.sort || request.revision != m.revision {
 			m.sort = request.sort
+			m.revision = request.revision
 			m.mergerCache = make(map[string]*Merger)
 			clearChunkCache()
 		}
@@ -140,11 +143,11 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 
 	numChunks := len(request.chunks)
 	if numChunks == 0 {
-		return EmptyMerger, false
+		return EmptyMerger(request.revision), false
 	}
 	pattern := request.pattern
 	if pattern.IsEmpty() {
-		return PassMerger(&request.chunks, m.tac), false
+		return PassMerger(&request.chunks, m.tac, request.revision), false
 	}
 
 	cancelled := util.NewAtomicBool(false)
@@ -218,11 +221,11 @@ func (m *Matcher) scan(request MatchRequest) (*Merger, bool) {
 		partialResult := <-resultChan
 		partialResults[partialResult.index] = partialResult.matches
 	}
-	return NewMerger(pattern, partialResults, m.sort, m.tac), false
+	return NewMerger(pattern, partialResults, m.sort, m.tac, request.revision), false
 }
 
 // Reset is called to interrupt/signal the ongoing search
-func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool, clearCache bool) {
+func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final bool, sort bool, revision int) {
 	pattern := m.patternBuilder(patternRunes)
 
 	var event util.EventType
@@ -231,5 +234,5 @@ func (m *Matcher) Reset(chunks []*Chunk, patternRunes []rune, cancel bool, final
 	} else {
 		event = reqRetry
 	}
-	m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort && pattern.sortable, clearCache})
+	m.reqBox.Set(event, MatchRequest{chunks, pattern, final, sort && pattern.sortable, revision})
 }

src/merger.go

@@ -3,7 +3,9 @@ package fzf
 import "fmt"
 
 // EmptyMerger is a Merger with no data
-var EmptyMerger = NewMerger(nil, [][]Result{}, false, false)
+func EmptyMerger(revision int) *Merger {
+	return NewMerger(nil, [][]Result{}, false, false, revision)
+}
 
 // Merger holds a set of locally sorted lists of items and provides the view of
 // a single, globally-sorted list
@@ -17,16 +19,20 @@ type Merger struct {
 	tac      bool
 	final    bool
 	count    int
+	pass     bool
+	revision int
 }
 
 // PassMerger returns a new Merger that simply returns the items in the
 // original order
-func PassMerger(chunks *[]*Chunk, tac bool) *Merger {
+func PassMerger(chunks *[]*Chunk, tac bool, revision int) *Merger {
 	mg := Merger{
 		pattern:  nil,
 		chunks:   chunks,
 		tac:      tac,
-		count:   0}
+		count:    0,
+		pass:     true,
+		revision: revision}
 
 	for _, chunk := range *mg.chunks {
 		mg.count += chunk.count
@@ -35,7 +41,7 @@ func PassMerger(chunks *[]*Chunk, tac bool) *Merger {
 }
 
 // NewMerger returns a new Merger
-func NewMerger(pattern *Pattern, lists [][]Result, sorted bool, tac bool) *Merger {
+func NewMerger(pattern *Pattern, lists [][]Result, sorted bool, tac bool, revision int) *Merger {
 	mg := Merger{
 		pattern:  pattern,
 		lists:    lists,
@@ -45,7 +51,8 @@ func NewMerger(pattern *Pattern, lists [][]Result, sorted bool, tac bool) *Merge
 		sorted:   sorted,
 		tac:      tac,
 		final:    false,
-		count:   0}
+		count:    0,
+		revision: revision}
 
 	for _, list := range mg.lists {
 		mg.count += len(list)
@@ -53,11 +60,42 @@ func NewMerger(pattern *Pattern, lists [][]Result, sorted bool, tac bool) *Merge
 	return &mg
 }
 
+// Revision returns revision number
+func (mg *Merger) Revision() int {
+	return mg.revision
+}
+
 // Length returns the number of items
 func (mg *Merger) Length() int {
 	return mg.count
 }
 
+func (mg *Merger) First() Result {
+	if mg.tac && !mg.sorted {
+		return mg.Get(mg.count - 1)
+	}
+	return mg.Get(0)
+}
+
+// FindIndex returns the index of the item with the given item index
+func (mg *Merger) FindIndex(itemIndex int32) int {
+	index := -1
+	if mg.pass {
+		index = int(itemIndex)
+		if mg.tac {
+			index = mg.count - index - 1
+		}
+	} else {
+		for i := 0; i < mg.count; i++ {
+			if mg.Get(i).item.Index() == itemIndex {
+				index = i
+				break
+			}
+		}
+	}
+	return index
+}
+
 // Get returns the pointer to the Result object indexed by the given integer
 func (mg *Merger) Get(idx int) Result {
 	if mg.chunks != nil {

src/merger_test.go

@@ -23,10 +23,10 @@ func randResult() Result {
 }
 
 func TestEmptyMerger(t *testing.T) {
-	assert(t, EmptyMerger.Length() == 0, "Not empty")
+	assert(t, EmptyMerger(0).Length() == 0, "Not empty")
-	assert(t, EmptyMerger.count == 0, "Invalid count")
+	assert(t, EmptyMerger(0).count == 0, "Invalid count")
-	assert(t, len(EmptyMerger.lists) == 0, "Invalid lists")
+	assert(t, len(EmptyMerger(0).lists) == 0, "Invalid lists")
-	assert(t, len(EmptyMerger.merged) == 0, "Invalid merged list")
+	assert(t, len(EmptyMerger(0).merged) == 0, "Invalid merged list")
 }
 
 func buildLists(partiallySorted bool) ([][]Result, []Result) {
@@ -57,7 +57,7 @@ func TestMergerUnsorted(t *testing.T) {
 	cnt := len(items)
 
 	// Not sorted: same order
-	mg := NewMerger(nil, lists, false, false)
+	mg := NewMerger(nil, lists, false, false, 0)
 	assert(t, cnt == mg.Length(), "Invalid Length")
 	for i := 0; i < cnt; i++ {
 		assert(t, items[i] == mg.Get(i), "Invalid Get")
@@ -69,7 +69,7 @@ func TestMergerSorted(t *testing.T) {
 	cnt := len(items)
 
 	// Sorted sorted order
-	mg := NewMerger(nil, lists, true, false)
+	mg := NewMerger(nil, lists, true, false, 0)
 	assert(t, cnt == mg.Length(), "Invalid Length")
 	sort.Sort(ByRelevance(items))
 	for i := 0; i < cnt; i++ {
@@ -79,7 +79,7 @@ func TestMergerSorted(t *testing.T) {
 	}
 
 	// Inverse order
-	mg2 := NewMerger(nil, lists, true, false)
+	mg2 := NewMerger(nil, lists, true, false, 0)
 	for i := cnt - 1; i >= 0; i-- {
 		if items[i] != mg2.Get(i) {
 			t.Error("Not sorted", items[i], mg2.Get(i))

src/options.go

@@ -10,6 +10,7 @@ import (
 
 	"github.com/junegunn/fzf/src/algo"
 	"github.com/junegunn/fzf/src/tui"
+	"github.com/junegunn/fzf/src/util"
 
 	"github.com/mattn/go-runewidth"
 	"github.com/mattn/go-shellwords"
@@ -32,6 +33,7 @@ const usage = `usage: fzf [options]
                            field index expressions
     -d, --delimiter=STR    Field delimiter regex (default: AWK-style)
     +s, --no-sort          Do not sort the result
+    --track                Track the current selection when the result is updated
     --tac                  Reverse the order of the input
     --disabled             Do not perform search
     --tiebreak=CRI[,..]    Comma-separated list of sort criteria to apply
@@ -61,7 +63,7 @@ const usage = `usage: fzf [options]
                            (default: 10)
     --layout=LAYOUT        Choose layout: [default|reverse|reverse-list]
     --border[=STYLE]       Draw border around the finder
-                           [rounded|sharp|horizontal|vertical|
+                           [rounded|sharp|bold|block|thinblock|double|horizontal|vertical|
                             top|bottom|left|right|none] (default: rounded)
     --border-label=LABEL   Label to print on the border
     --border-label-pos=COL Position of the border label
@@ -70,10 +72,11 @@ const usage = `usage: fzf [options]
                            (default: 0 or center)
     --margin=MARGIN        Screen margin (TRBL | TB,RL | T,RL,B | T,R,B,L)
     --padding=PADDING      Padding inside border (TRBL | TB,RL | T,RL,B | T,R,B,L)
-    --info=STYLE           Finder info style [default|inline|hidden]
+    --info=STYLE           Finder info style
+                           [default|right|hidden|inline[:SEPARATOR]|inline-right]
     --separator=STR        String to form horizontal separator on info line
     --no-separator         Hide info line separator
-    --scrollbar[=CHAR]     Scrollbar character
+    --scrollbar[=C1[C2]]   Scrollbar character(s) (each for main and preview window)
     --no-scrollbar         Hide scrollbar
     --prompt=STR           Input prompt (default: '> ')
     --pointer=STR          Pointer to the current line (default: '>')
@@ -115,16 +118,19 @@ const usage = `usage: fzf [options]
     --read0                Read input delimited by ASCII NUL characters
     --print0               Print output delimited by ASCII NUL characters
     --sync                 Synchronous search for multi-staged filtering
-    --listen=HTTP_PORT     Start HTTP server to receive actions (POST /)
+    --listen[=HTTP_PORT]   Start HTTP server to receive actions (POST /)
     --version              Display version information and exit
 
   Environment variables
     FZF_DEFAULT_COMMAND    Default command to use when input is tty
     FZF_DEFAULT_OPTS       Default options
                            (e.g. '--layout=reverse --inline-info')
+    FZF_API_KEY            X-API-Key header for HTTP server (--listen)
 
 `
 
+const defaultInfoSep = " < "
+
 // Case denotes case-sensitivity of search
 type Case int
 
@@ -161,6 +167,14 @@ func defaultMargin() [4]sizeSpec {
 	return [4]sizeSpec{}
 }
 
+type trackOption int
+
+const (
+	trackDisabled trackOption = iota
+	trackEnabled
+	trackCurrent
+)
+
 type windowPosition int
 
 const (
@@ -182,10 +196,16 @@ type infoStyle int
 
 const (
 	infoDefault infoStyle = iota
+	infoRight
 	infoInline
+	infoInlineRight
 	infoHidden
 )
 
+func (s infoStyle) noExtraLine() bool {
+	return s == infoInline || s == infoInlineRight || s == infoHidden
+}
+
 type labelOpts struct {
 	label  string
 	column int
@@ -246,6 +266,10 @@ func (a previewOpts) sameContentLayout(b previewOpts) bool {
 	return a.wrap == b.wrap && a.headerLines == b.headerLines
 }
 
+func firstLine(s string) string {
+	return strings.SplitN(s, "\n", 2)[0]
+}
+
 // Options stores the values of command-line options
 type Options struct {
 	Fuzzy        bool
@@ -259,6 +283,7 @@ type Options struct {
 	WithNth      []Range
 	Delimiter    Delimiter
 	Sort         int
+	Track        trackOption
 	Tac          bool
 	Criteria     []criterion
 	Multi        int
@@ -277,6 +302,7 @@ type Options struct {
 	ScrollOff    int
 	FileWord     bool
 	InfoStyle    infoStyle
+	InfoSep      string
 	Separator    *string
 	JumpLabels   string
 	Prompt       string
@@ -308,7 +334,7 @@ type Options struct {
 	PreviewLabel labelOpts
 	Unicode      bool
 	Tabstop      int
-	ListenPort   int
+	ListenPort   *int
 	ClearOnExit  bool
 	Version      bool
 }
@@ -330,6 +356,7 @@ func defaultOptions() *Options {
 		WithNth:      make([]Range, 0),
 		Delimiter:    Delimiter{},
 		Sort:         1000,
+		Track:        trackDisabled,
 		Tac:          false,
 		Criteria:     []criterion{byScore, byLength},
 		Multi:        0,
@@ -525,6 +552,10 @@ func parseBorder(str string, optional bool) tui.BorderShape {
 		return tui.BorderSharp
 	case "bold":
 		return tui.BorderBold
+	case "block":
+		return tui.BorderBlock
+	case "thinblock":
+		return tui.BorderThinBlock
 	case "double":
 		return tui.BorderDouble
 	case "horizontal":
@@ -545,7 +576,7 @@ func parseBorder(str string, optional bool) tui.BorderShape {
 		if optional && str == "" {
 			return tui.DefaultBorderShape
 		}
-		errorExit("invalid border style (expected: rounded|sharp|bold|double|horizontal|vertical|top|bottom|left|right|none)")
+		errorExit("invalid border style (expected: rounded|sharp|bold|block|thinblock|double|horizontal|vertical|top|bottom|left|right|none)")
 	}
 	return tui.BorderNone
 }
@@ -593,6 +624,8 @@ func parseKeyChordsImpl(str string, message string, exit func(string)) map[tui.E
 			add(tui.BSpace)
 		case "ctrl-space":
 			add(tui.CtrlSpace)
+		case "ctrl-delete":
+			add(tui.CtrlDelete)
 		case "ctrl-^", "ctrl-6":
 			add(tui.CtrlCaret)
 		case "ctrl-/", "ctrl-_":
@@ -609,6 +642,12 @@ func parseKeyChordsImpl(str string, message string, exit func(string)) map[tui.E
 			add(tui.Start)
 		case "load":
 			add(tui.Load)
+		case "focus":
+			add(tui.Focus)
+		case "one":
+			add(tui.One)
+		case "zero":
+			add(tui.Zero)
 		case "alt-enter", "alt-return":
 			chords[tui.CtrlAltKey('m')] = key
 		case "alt-space":
@@ -657,12 +696,30 @@ func parseKeyChordsImpl(str string, message string, exit func(string)) map[tui.E
 			add(tui.SLeft)
 		case "shift-right":
 			add(tui.SRight)
+		case "shift-delete":
+			add(tui.SDelete)
 		case "left-click":
 			add(tui.LeftClick)
 		case "right-click":
 			add(tui.RightClick)
+		case "shift-left-click":
+			add(tui.SLeftClick)
+		case "shift-right-click":
+			add(tui.SRightClick)
 		case "double-click":
 			add(tui.DoubleClick)
+		case "scroll-up":
+			add(tui.ScrollUp)
+		case "scroll-down":
+			add(tui.ScrollDown)
+		case "shift-scroll-up":
+			add(tui.SScrollUp)
+		case "shift-scroll-down":
+			add(tui.SScrollDown)
+		case "preview-scroll-up":
+			add(tui.PreviewScrollUp)
+		case "preview-scroll-down":
+			add(tui.PreviewScrollDown)
 		case "f10":
 			add(tui.F10)
 		case "f11":
@@ -863,10 +920,14 @@ func parseTheme(defaultTheme *tui.ColorTheme, str string) *tui.ColorTheme {
 				mergeAttr(&theme.CurrentMatch)
 			case "border":
 				mergeAttr(&theme.Border)
+			case "preview-border":
+				mergeAttr(&theme.PreviewBorder)
 			case "separator":
 				mergeAttr(&theme.Separator)
 			case "scrollbar":
 				mergeAttr(&theme.Scrollbar)
+			case "preview-scrollbar":
+				mergeAttr(&theme.PreviewScrollbar)
 			case "label":
 				mergeAttr(&theme.BorderLabel)
 			case "preview-label":
@@ -912,7 +973,7 @@ const (
 
 func init() {
 	executeRegexp = regexp.MustCompile(
-		`(?si)[:+](execute(?:-multi|-silent)?|reload(?:-sync)?|preview|(?:change|transform)-(?:query|prompt)|change-preview-window|change-preview|(?:re|un)bind|pos|put)`)
+		`(?si)[:+](become|execute(?:-multi|-silent)?|reload(?:-sync)?|preview|(?:change|transform)-(?:header|query|prompt|border-label|preview-label)|change-preview-window|change-preview|(?:re|un)bind|pos|put)`)
 	splitRegexp = regexp.MustCompile("[,:]+")
 	actionNameRegexp = regexp.MustCompile("(?i)^[a-z-]+")
 }
@@ -954,7 +1015,7 @@ Loop:
 		ce = regexp.QuoteMeta(ce)
 
 		// @$ or @+
-		loc = regexp.MustCompile(fmt.Sprintf(`^%s.*?(%s[+,]|%s$)`, cs, ce, ce)).FindStringIndex(action)
+		loc = regexp.MustCompile(fmt.Sprintf(`(?s)^%s.*?(%s[+,]|%s$)`, cs, ce, ce)).FindStringIndex(action)
 		if loc == nil {
 			masked += action
 			break
@@ -1068,6 +1129,12 @@ func parseActionList(masked string, original string, prevActions []*action, putA
 			appendAction(actToggleAll)
 		case "toggle-search":
 			appendAction(actToggleSearch)
+		case "toggle-track":
+			appendAction(actToggleTrack)
+		case "toggle-header":
+			appendAction(actToggleHeader)
+		case "track":
+			appendAction(actTrack)
 		case "select":
 			appendAction(actSelect)
 		case "select-all":
@@ -1102,12 +1169,20 @@ func parseActionList(masked string, original string, prevActions []*action, putA
 			appendAction(actPrevSelected)
 		case "next-selected":
 			appendAction(actNextSelected)
+		case "show-preview":
+			appendAction(actShowPreview)
+		case "hide-preview":
+			appendAction(actHidePreview)
 		case "toggle-preview":
 			appendAction(actTogglePreview)
 		case "toggle-preview-wrap":
 			appendAction(actTogglePreviewWrap)
 		case "toggle-sort":
 			appendAction(actToggleSort)
+		case "offset-up":
+			appendAction(actOffsetUp)
+		case "offset-down":
+			appendAction(actOffsetDown)
 		case "preview-top":
 			appendAction(actPreviewTop)
 		case "preview-bottom":
@@ -1158,6 +1233,10 @@ func parseActionList(masked string, original string, prevActions []*action, putA
 					actions = append(actions, &action{t: t, a: actionArg})
 				}
 				switch t {
+				case actBecome:
+					if util.IsWindows() {
+						exit("become action is not supported on Windows")
+					}
 				case actUnbind, actRebind:
 					parseKeyChordsImpl(actionArg, spec[0:offset]+" target required", exit)
 				case actChangePreviewWindow:
@@ -1210,6 +1289,8 @@ func isExecuteAction(str string) actionType {
 
 	prefix := actionNameRegexp.FindString(str)
 	switch prefix {
+	case "become":
+		return actBecome
 	case "reload":
 		return actReload
 	case "reload-sync":
@@ -1220,6 +1301,12 @@ func isExecuteAction(str string) actionType {
 		return actRebind
 	case "preview":
 		return actPreview
+	case "change-border-label":
+		return actChangeBorderLabel
+	case "change-header":
+		return actChangeHeader
+	case "change-preview-label":
+		return actChangePreviewLabel
 	case "change-preview-window":
 		return actChangePreviewWindow
 	case "change-preview":
@@ -1238,6 +1325,12 @@ func isExecuteAction(str string) actionType {
 		return actExecuteMulti
 	case "put":
 		return actPut
+	case "transform-border-label":
+		return actTransformBorderLabel
+	case "transform-preview-label":
+		return actTransformPreviewLabel
+	case "transform-header":
+		return actTransformHeader
 	case "transform-prompt":
 		return actTransformPrompt
 	case "transform-query":
@@ -1309,18 +1402,26 @@ func parseLayout(str string) layoutType {
 	return layoutDefault
 }
 
-func parseInfoStyle(str string) infoStyle {
+func parseInfoStyle(str string) (infoStyle, string) {
 	switch str {
 	case "default":
-		return infoDefault
+		return infoDefault, ""
+	case "right":
+		return infoRight, ""
 	case "inline":
-		return infoInline
+		return infoInline, defaultInfoSep
+	case "inline-right":
+		return infoInlineRight, ""
 	case "hidden":
-		return infoHidden
+		return infoHidden, ""
 	default:
-		errorExit("invalid info style (expected: default|inline|hidden)")
+		prefix := "inline:"
+		if strings.HasPrefix(str, prefix) {
+			return infoInline, strings.ReplaceAll(str[len(prefix):], "\n", " ")
 		}
-	return infoDefault
+		errorExit("invalid info style (expected: default|right|hidden|inline[:SEPARATOR]|inline-right)")
+	}
+	return infoDefault, ""
 }
 
 func parsePreviewWindow(opts *previewOpts, input string) {
@@ -1371,6 +1472,10 @@ func parsePreviewWindowImpl(opts *previewOpts, input string, exit func(string))
 			opts.border = tui.BorderSharp
 		case "border-bold":
 			opts.border = tui.BorderBold
+		case "border-block":
+			opts.border = tui.BorderBlock
+		case "border-thinblock":
+			opts.border = tui.BorderThinBlock
 		case "border-double":
 			opts.border = tui.BorderDouble
 		case "noborder", "border-none":
@@ -1530,6 +1635,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			opts.Sort = optionalNumeric(allArgs, &i, 1)
 		case "+s", "--no-sort":
 			opts.Sort = 0
+		case "--track":
+			opts.Track = trackEnabled
+		case "--no-track":
+			opts.Track = trackDisabled
 		case "--tac":
 			opts.Tac = true
 		case "--no-tac":
@@ -1588,12 +1697,13 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--no-filepath-word":
 			opts.FileWord = false
 		case "--info":
-			opts.InfoStyle = parseInfoStyle(
+			opts.InfoStyle, opts.InfoSep = parseInfoStyle(
 				nextString(allArgs, &i, "info style required"))
 		case "--no-info":
 			opts.InfoStyle = infoHidden
 		case "--inline-info":
 			opts.InfoStyle = infoInline
+			opts.InfoSep = defaultInfoSep
 		case "--no-inline-info":
 			opts.InfoStyle = infoDefault
 		case "--separator":
@@ -1640,10 +1750,10 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--prompt":
 			opts.Prompt = nextString(allArgs, &i, "prompt string required")
 		case "--pointer":
-			opts.Pointer = nextString(allArgs, &i, "pointer sign string required")
+			opts.Pointer = firstLine(nextString(allArgs, &i, "pointer sign string required"))
 			validatePointer = true
 		case "--marker":
-			opts.Marker = nextString(allArgs, &i, "selected sign string required")
+			opts.Marker = firstLine(nextString(allArgs, &i, "selected sign string required"))
 			validateMarker = true
 		case "--sync":
 			opts.Sync = true
@@ -1723,9 +1833,10 @@ func parseOptions(opts *Options, allArgs []string) {
 		case "--tabstop":
 			opts.Tabstop = nextInt(allArgs, &i, "tab stop required")
 		case "--listen":
-			opts.ListenPort = nextInt(allArgs, &i, "listen port required")
+			port := optionalNumeric(allArgs, &i, 0)
+			opts.ListenPort = &port
 		case "--no-listen":
-			opts.ListenPort = 0
+			opts.ListenPort = nil
 		case "--clear":
 			opts.ClearOnExit = true
 		case "--no-clear":
@@ -1758,10 +1869,10 @@ func parseOptions(opts *Options, allArgs []string) {
 			} else if match, value := optString(arg, "--prompt="); match {
 				opts.Prompt = value
 			} else if match, value := optString(arg, "--pointer="); match {
-				opts.Pointer = value
+				opts.Pointer = firstLine(value)
 				validatePointer = true
 			} else if match, value := optString(arg, "--marker="); match {
-				opts.Marker = value
+				opts.Marker = firstLine(value)
 				validateMarker = true
 			} else if match, value := optString(arg, "-n", "--nth="); match {
 				opts.Nth = splitNth(value)
@@ -1778,7 +1889,7 @@ func parseOptions(opts *Options, allArgs []string) {
 			} else if match, value := optString(arg, "--layout="); match {
 				opts.Layout = parseLayout(value)
 			} else if match, value := optString(arg, "--info="); match {
-				opts.InfoStyle = parseInfoStyle(value)
+				opts.InfoStyle, opts.InfoSep = parseInfoStyle(value)
 			} else if match, value := optString(arg, "--separator="); match {
 				opts.Separator = &value
 			} else if match, value := optString(arg, "--scrollbar="); match {
@@ -1816,7 +1927,8 @@ func parseOptions(opts *Options, allArgs []string) {
 			} else if match, value := optString(arg, "--tabstop="); match {
 				opts.Tabstop = atoi(value)
 			} else if match, value := optString(arg, "--listen="); match {
-				opts.ListenPort = atoi(value)
+				port := atoi(value)
+				opts.ListenPort = &port
 			} else if match, value := optString(arg, "--hscroll-off="); match {
 				opts.HscrollOff = atoi(value)
 			} else if match, value := optString(arg, "--scroll-off="); match {
@@ -1846,7 +1958,7 @@ func parseOptions(opts *Options, allArgs []string) {
 		errorExit("tab stop must be a positive integer")
 	}
 
-	if opts.ListenPort < 0 || opts.ListenPort > 65535 {
+	if opts.ListenPort != nil && (*opts.ListenPort < 0 || *opts.ListenPort > 65535) {
 		errorExit("invalid listen port")
 	}
 
@@ -1890,9 +2002,17 @@ func postProcessOptions(opts *Options) {
 		errorExit("--height option is currently not supported on this platform")
 	}
 
-	if opts.Scrollbar != nil && runewidth.StringWidth(*opts.Scrollbar) > 1 {
+	if opts.Scrollbar != nil {
+		runes := []rune(*opts.Scrollbar)
+		if len(runes) > 2 {
+			errorExit("--scrollbar should be given one or two characters")
+		}
+		for _, r := range runes {
+			if runewidth.RuneWidth(r) != 1 {
 				errorExit("scrollbar display width should be 1")
 			}
+		}
+	}
 
 	// Default actions for CTRL-N / CTRL-P when --history is set
 	if opts.History != nil {
@@ -1907,25 +2027,25 @@ func postProcessOptions(opts *Options) {
 	// Extend the default key map
 	keymap := defaultKeymap()
 	for key, actions := range opts.Keymap {
-		var lastChangePreviewWindow *action
+		reordered := []*action{}
 		for _, act := range actions {
 			switch act.t {
 			case actToggleSort:
 				// To display "+S"/"-S" on info line
 				opts.ToggleSort = true
-			case actChangePreviewWindow:
+			case actTogglePreview, actShowPreview, actHidePreview, actChangePreviewWindow:
-				lastChangePreviewWindow = act
+				reordered = append(reordered, act)
 			}
 		}
 
-		// Re-organize actions so that we only keep the last change-preview-window
+		// Re-organize actions so that we put actions that change the preview window first in the list.
-		// 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 {})
+		//  -> change-preview-window(up,+10)+change-preview-window(up,+20)+preview(sleep 3; cat {})
-		if lastChangePreviewWindow != nil {
+		if len(reordered) > 0 {
-			reordered := []*action{lastChangePreviewWindow}
 			for _, act := range actions {
-				if act.t != actChangePreviewWindow {
+				switch act.t {
+				case actTogglePreview, actShowPreview, actHidePreview, actChangePreviewWindow:
+				default:
 					reordered = append(reordered, act)
 				}
 			}
@@ -1968,9 +2088,7 @@ func postProcessOptions(opts *Options) {
 		theme := opts.Theme
 		boldify := func(c tui.ColorAttr) tui.ColorAttr {
 			dup := c
-			if !theme.Colored {
+			if (c.Attr & tui.AttrRegular) == 0 {
-				dup.Attr |= tui.Bold
-			} else if (c.Attr & tui.AttrRegular) == 0 {
 				dup.Attr |= tui.Bold
 			}
 			return dup

src/options_test.go

@@ -2,7 +2,7 @@ package fzf
 
 import (
 	"fmt"
-	"io/ioutil"
+	"os"
 	"testing"
 
 	"github.com/junegunn/fzf/src/tui"
@@ -268,7 +268,7 @@ func TestBind(t *testing.T) {
 	}
 	parseKeymap(keymap,
 		"ctrl-a:kill-line,ctrl-b:toggle-sort+up+down,c:page-up,alt-z:page-down,"+
-			"f1:execute(ls {+})+abort+execute(echo {+})+select-all,f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
+			"f1:execute(ls {+})+abort+execute(echo \n{+})+select-all,f2:execute/echo {}, {}, {}/,f3:execute[echo '({})'],f4:execute;less {};,"+
 			"alt-a:execute-Multi@echo (,),[,],/,:,;,%,{}@,alt-b:execute;echo (,),[,],/,:,@,%,{};,"+
 			"x:Execute(foo+bar),X:execute/bar+baz/"+
 			",f1:+first,f1:+top"+
@@ -357,7 +357,7 @@ func TestDefaultCtrlNP(t *testing.T) {
 	check([]string{"--bind=ctrl-n:accept"}, tui.CtrlN, actAccept)
 	check([]string{"--bind=ctrl-p:accept"}, tui.CtrlP, actAccept)
 
-	f, _ := ioutil.TempFile("", "fzf-history")
+	f, _ := os.CreateTemp("", "fzf-history")
 	f.Close()
 	hist := "--history=" + f.Name()
 	check([]string{hist}, tui.CtrlN, actNextHistory)

src/reader.go

@@ -6,6 +6,7 @@ import (
 	"io"
 	"os"
 	"os/exec"
+	"path"
 	"path/filepath"
 	"sync"
 	"sync/atomic"
@@ -98,8 +99,17 @@ func (r *Reader) ReadSource() {
 	r.startEventPoller()
 	var success bool
 	if util.IsTty() {
-		// The default command for *nix requires bash
+		// The default command for *nix requires a shell that supports "pipefail"
+		// https://unix.stackexchange.com/a/654932/62171
 		shell := "bash"
+		currentShell := os.Getenv("SHELL")
+		currentShellName := path.Base(currentShell)
+		for _, shellName := range []string{"bash", "zsh", "ksh", "ash", "hush", "mksh", "yash"} {
+			if currentShellName == shellName {
+				shell = currentShell
+				break
+			}
+		}
 		cmd := os.Getenv("FZF_DEFAULT_COMMAND")
 		if len(cmd) == 0 {
 			if defaultCommand != "" {

src/server.go

@@ -3,30 +3,69 @@ package fzf
 import (
 	"bufio"
 	"bytes"
+	"crypto/subtle"
 	"errors"
 	"fmt"
 	"net"
+	"os"
+	"regexp"
 	"strconv"
 	"strings"
 	"time"
 )
 
+var getRegex *regexp.Regexp
+
+func init() {
+	getRegex = regexp.MustCompile(`^GET /(?:\?([a-z0-9=&]+))? HTTP`)
+}
+
+type getParams struct {
+	limit  int
+	offset int
+}
+
 const (
 	crlf             = "\r\n"
 	httpOk           = "HTTP/1.1 200 OK" + crlf
 	httpBadRequest   = "HTTP/1.1 400 Bad Request" + crlf
+	httpUnauthorized = "HTTP/1.1 401 Unauthorized" + crlf
 	httpReadTimeout  = 10 * time.Second
 	maxContentLength = 1024 * 1024
 )
 
-func startHttpServer(port int, channel chan []*action) error {
+type httpServer struct {
-	if port == 0 {
+	apiKey          []byte
-		return nil
+	actionChannel   chan []*action
+	responseChannel chan string
+}
+
+func startHttpServer(port int, actionChannel chan []*action, responseChannel chan string) (error, int) {
+	if port < 0 {
+		return nil, port
 	}
 
 	listener, err := net.Listen("tcp", fmt.Sprintf("localhost:%d", port))
 	if err != nil {
-		return fmt.Errorf("port not available: %d", port)
+		return fmt.Errorf("port not available: %d", port), port
+	}
+	if port == 0 {
+		addr := listener.Addr().String()
+		parts := strings.SplitN(addr, ":", 2)
+		if len(parts) < 2 {
+			return fmt.Errorf("cannot extract port: %s", addr), port
+		}
+		var err error
+		port, err = strconv.Atoi(parts[1])
+		if err != nil {
+			return err, port
+		}
+	}
+
+	server := httpServer{
+		apiKey:          []byte(os.Getenv("FZF_API_KEY")),
+		actionChannel:   actionChannel,
+		responseChannel: responseChannel,
 	}
 
 	go func() {
@@ -39,13 +78,13 @@ func startHttpServer(port int, channel chan []*action) error {
 					continue
 				}
 			}
-			conn.Write([]byte(handleHttpRequest(conn, channel)))
+			conn.Write([]byte(server.handleHttpRequest(conn)))
 			conn.Close()
 		}
 		listener.Close()
 	}()
 
-	return nil
+	return nil, port
 }
 
 // Here we are writing a simplistic HTTP server without using net/http
@@ -54,12 +93,22 @@ func startHttpServer(port int, channel chan []*action) error {
 // * No --listen:            2.8MB
 // * --listen with net/http: 5.7MB
 // * --listen w/o net/http:  3.3MB
-func handleHttpRequest(conn net.Conn, channel chan []*action) string {
+func (server *httpServer) handleHttpRequest(conn net.Conn) string {
 	contentLength := 0
+	apiKey := ""
 	body := ""
-	bad := func(message string) string {
+	answer := func(code string, message string) string {
 		message += "\n"
-		return httpBadRequest + fmt.Sprintf("Content-Length: %d%s", len(message), crlf+crlf+message)
+		return code + fmt.Sprintf("Content-Length: %d%s", len(message), crlf+crlf+message)
+	}
+	unauthorized := func(message string) string {
+		return answer(httpUnauthorized, message)
+	}
+	bad := func(message string) string {
+		return answer(httpBadRequest, message)
+	}
+	good := func(message string) string {
+		return answer(httpOk+"Content-Type: application/json"+crlf, message)
 	}
 	conn.SetReadDeadline(time.Now().Add(httpReadTimeout))
 	scanner := bufio.NewScanner(conn)
@@ -80,7 +129,12 @@ func handleHttpRequest(conn net.Conn, channel chan []*action) string {
 		text := scanner.Text()
 		switch section {
 		case 0:
-			if !strings.HasPrefix(text, "POST / HTTP") {
+			getMatch := getRegex.FindStringSubmatch(text)
+			if len(getMatch) > 0 {
+				server.actionChannel <- []*action{{t: actResponse, a: getMatch[1]}}
+				response := <-server.responseChannel
+				return good(response)
+			} else if !strings.HasPrefix(text, "POST / HTTP") {
 				return bad("invalid request method")
 			}
 			section++
@@ -93,18 +147,27 @@ func handleHttpRequest(conn net.Conn, channel chan []*action) string {
 				continue
 			}
 			pair := strings.SplitN(text, ":", 2)
-			if len(pair) == 2 && strings.ToLower(pair[0]) == "content-length" {
+			if len(pair) == 2 {
+				switch strings.ToLower(pair[0]) {
+				case "content-length":
 					length, err := strconv.Atoi(strings.TrimSpace(pair[1]))
 					if err != nil || length <= 0 || length > maxContentLength {
 						return bad("invalid content length")
 					}
 					contentLength = length
+				case "x-api-key":
+					apiKey = strings.TrimSpace(pair[1])
+				}
 			}
 		case 2:
 			body += text
 		}
 	}
 
+	if len(server.apiKey) != 0 && subtle.ConstantTimeCompare([]byte(apiKey), server.apiKey) != 1 {
+		return unauthorized("invalid api key")
+	}
+
 	if len(body) < contentLength {
 		return bad("incomplete request")
 	}
@@ -121,6 +184,28 @@ func handleHttpRequest(conn net.Conn, channel chan []*action) string {
 		return bad("no action specified")
 	}
 
-	channel <- actions
+	server.actionChannel <- actions
 	return httpOk
 }
+
+func parseGetParams(query string) getParams {
+	params := getParams{limit: 100, offset: 0}
+	for _, pair := range strings.Split(query, "&") {
+		parts := strings.SplitN(pair, "=", 2)
+		if len(parts) == 2 {
+			switch parts[0] {
+			case "limit":
+				val, err := strconv.Atoi(parts[1])
+				if err == nil {
+					params.limit = val
+				}
+			case "offset":
+				val, err := strconv.Atoi(parts[1])
+				if err == nil {
+					params.offset = val
+				}
+			}
+		}
+	}
+	return params
+}

src/tui/dummy.go

@@ -33,6 +33,7 @@ func (r *FullscreenRenderer) Init()                              {}
 func (r *FullscreenRenderer) Resize(maxHeightFunc func(int) int) {}
 func (r *FullscreenRenderer) Pause(bool)                         {}
 func (r *FullscreenRenderer) Resume(bool, bool)                  {}
+func (r *FullscreenRenderer) PassThrough(string)                 {}
 func (r *FullscreenRenderer) Clear()                             {}
 func (r *FullscreenRenderer) NeedScrollbarRedraw() bool          { return false }
 func (r *FullscreenRenderer) Refresh()                           {}

src/tui/light.go

@@ -31,21 +31,32 @@ const consoleDevice string = "/dev/tty"
 var offsetRegexp *regexp.Regexp = regexp.MustCompile("(.*)\x1b\\[([0-9]+);([0-9]+)R")
 var offsetRegexpBegin *regexp.Regexp = regexp.MustCompile("^\x1b\\[[0-9]+;[0-9]+R")
 
-func (r *LightRenderer) stderr(str string) {
+func (r *LightRenderer) PassThrough(str string) {
-	r.stderrInternal(str, true)
+	r.queued.WriteString(str)
+	r.flush()
 }
 
-// FIXME: Need better handling of non-displayable characters
+func (r *LightRenderer) stderr(str string) {
-func (r *LightRenderer) stderrInternal(str string, allowNLCR bool) {
+	r.stderrInternal(str, true, "")
+}
+
+const CR string = "\x1b[2m␍"
+const LF string = "\x1b[2m␊"
+
+func (r *LightRenderer) stderrInternal(str string, allowNLCR bool, resetCode string) {
 	bytes := []byte(str)
 	runes := []rune{}
 	for len(bytes) > 0 {
 		r, sz := utf8.DecodeRune(bytes)
 		nlcr := r == '\n' || r == '\r'
 		if r >= 32 || r == '\x1b' || nlcr {
-			if r == utf8.RuneError || nlcr && !allowNLCR {
+			if nlcr && !allowNLCR {
-				runes = append(runes, ' ')
+				if r == '\r' {
+					runes = append(runes, []rune(CR+resetCode)...)
 				} else {
+					runes = append(runes, []rune(LF+resetCode)...)
+				}
+			} else if r != utf8.RuneError {
 				runes = append(runes, r)
 			}
 		}
@@ -54,8 +65,10 @@ func (r *LightRenderer) stderrInternal(str string, allowNLCR bool) {
 	r.queued.WriteString(string(runes))
 }
 
-func (r *LightRenderer) csi(code string) {
+func (r *LightRenderer) csi(code string) string {
-	r.stderr("\x1b[" + code)
+	fullcode := "\x1b[" + code
+	r.stderr(fullcode)
+	return fullcode
 }
 
 func (r *LightRenderer) flush() {
@@ -174,11 +187,7 @@ func (r *LightRenderer) Init() {
 		}
 	}
 
-	if r.mouse {
+	r.enableMouse()
-		r.csi("?1000h")
-		r.csi("?1002h")
-		r.csi("?1006h")
-	}
 	r.csi(fmt.Sprintf("%dA", r.MaxY()-1))
 	r.csi("G")
 	r.csi("K")
@@ -426,7 +435,19 @@ func (r *LightRenderer) escSequence(sz *int) Event {
 				}
 				return Event{Invalid, 0, nil} // INS
 			case '3':
+				if r.buffer[3] == '~' {
 					return Event{Del, 0, nil}
+				}
+				if len(r.buffer) == 6 && r.buffer[5] == '~' {
+					*sz = 6
+					switch r.buffer[4] {
+					case '5':
+						return Event{CtrlDelete, 0, nil}
+					case '2':
+						return Event{SDelete, 0, nil}
+					}
+				}
+				return Event{Invalid, 0, nil}
 			case '4':
 				return Event{End, 0, nil}
 			case '5':
@@ -609,6 +630,7 @@ func (r *LightRenderer) rmcup() {
 }
 
 func (r *LightRenderer) Pause(clear bool) {
+	r.disableMouse()
 	r.restoreTerminal()
 	if clear {
 		if r.fullscreen {
@@ -621,6 +643,22 @@ func (r *LightRenderer) Pause(clear bool) {
 	}
 }
 
+func (r *LightRenderer) enableMouse() {
+	if r.mouse {
+		r.csi("?1000h")
+		r.csi("?1002h")
+		r.csi("?1006h")
+	}
+}
+
+func (r *LightRenderer) disableMouse() {
+	if r.mouse {
+		r.csi("?1000l")
+		r.csi("?1002l")
+		r.csi("?1006l")
+	}
+}
+
 func (r *LightRenderer) Resume(clear bool, sigcont bool) {
 	r.setupTerminal()
 	if clear {
@@ -629,14 +667,13 @@ func (r *LightRenderer) Resume(clear bool, sigcont bool) {
 		} else {
 			r.rmcup()
 		}
+		r.enableMouse()
 		r.flush()
 	} else if sigcont && !r.fullscreen && r.mouse {
 		// NOTE: SIGCONT (Coming back from CTRL-Z):
 		// 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.disableMouse()
-		r.csi("?1002l")
-		r.csi("?1006l")
 		r.mouse = false
 	}
 }
@@ -678,11 +715,7 @@ func (r *LightRenderer) Close() {
 	} else if !r.fullscreen {
 		r.csi("u")
 	}
-	if r.mouse {
+	r.disableMouse()
-		r.csi("?1000l")
-		r.csi("?1002l")
-		r.csi("?1006l")
-	}
 	r.flush()
 	r.closePlatform()
 	r.restoreTerminal()
@@ -719,25 +752,38 @@ func (r *LightRenderer) NewWindow(top int, left int, width int, height int, prev
 		w.fg = r.theme.Fg.Color
 		w.bg = r.theme.Bg.Color
 	}
-	w.drawBorder()
+	w.drawBorder(false)
 	return w
 }
 
-func (w *LightWindow) drawBorder() {
+func (w *LightWindow) DrawHBorder() {
+	w.drawBorder(true)
+}
+
+func (w *LightWindow) drawBorder(onlyHorizontal bool) {
 	switch w.border.shape {
-	case BorderRounded, BorderSharp, BorderBold, BorderDouble:
+	case BorderRounded, BorderSharp, BorderBold, BorderBlock, BorderThinBlock, BorderDouble:
-		w.drawBorderAround()
+		w.drawBorderAround(onlyHorizontal)
 	case BorderHorizontal:
 		w.drawBorderHorizontal(true, true)
 	case BorderVertical:
+		if onlyHorizontal {
+			return
+		}
 		w.drawBorderVertical(true, true)
 	case BorderTop:
 		w.drawBorderHorizontal(true, false)
 	case BorderBottom:
 		w.drawBorderHorizontal(false, true)
 	case BorderLeft:
+		if onlyHorizontal {
+			return
+		}
 		w.drawBorderVertical(true, false)
 	case BorderRight:
+		if onlyHorizontal {
+			return
+		}
 		w.drawBorderVertical(false, true)
 	}
 }
@@ -747,14 +793,14 @@ func (w *LightWindow) drawBorderHorizontal(top, bottom bool) {
 	if w.preview {
 		color = ColPreviewBorder
 	}
-	hw := runewidth.RuneWidth(w.border.horizontal)
+	hw := runewidth.RuneWidth(w.border.top)
 	if top {
 		w.Move(0, 0)
-		w.CPrint(color, repeat(w.border.horizontal, w.width/hw))
+		w.CPrint(color, repeat(w.border.top, w.width/hw))
 	}
 	if bottom {
 		w.Move(w.height-1, 0)
-		w.CPrint(color, repeat(w.border.horizontal, w.width/hw))
+		w.CPrint(color, repeat(w.border.bottom, w.width/hw))
 	}
 }
 
@@ -770,44 +816,46 @@ func (w *LightWindow) drawBorderVertical(left, right bool) {
 	for y := 0; y < w.height; y++ {
 		w.Move(y, 0)
 		if left {
-			w.CPrint(color, string(w.border.vertical))
+			w.CPrint(color, string(w.border.left))
 		}
 		w.CPrint(color, repeat(' ', width))
 		if right {
-			w.CPrint(color, string(w.border.vertical))
+			w.CPrint(color, string(w.border.right))
 		}
 	}
 }
 
-func (w *LightWindow) drawBorderAround() {
+func (w *LightWindow) drawBorderAround(onlyHorizontal bool) {
 	w.Move(0, 0)
 	color := ColBorder
 	if w.preview {
 		color = ColPreviewBorder
 	}
-	hw := runewidth.RuneWidth(w.border.horizontal)
+	hw := runewidth.RuneWidth(w.border.top)
-	vw := runewidth.RuneWidth(w.border.vertical)
 	tcw := runewidth.RuneWidth(w.border.topLeft) + runewidth.RuneWidth(w.border.topRight)
 	bcw := runewidth.RuneWidth(w.border.bottomLeft) + runewidth.RuneWidth(w.border.bottomRight)
 	rem := (w.width - tcw) % hw
-	w.CPrint(color, string(w.border.topLeft)+repeat(w.border.horizontal, (w.width-tcw)/hw)+repeat(' ', rem)+string(w.border.topRight))
+	w.CPrint(color, string(w.border.topLeft)+repeat(w.border.top, (w.width-tcw)/hw)+repeat(' ', rem)+string(w.border.topRight))
+	if !onlyHorizontal {
+		vw := runewidth.RuneWidth(w.border.left)
 		for y := 1; y < w.height-1; y++ {
 			w.Move(y, 0)
-		w.CPrint(color, string(w.border.vertical))
+			w.CPrint(color, string(w.border.left))
 			w.CPrint(color, repeat(' ', w.width-vw*2))
-		w.CPrint(color, string(w.border.vertical))
+			w.CPrint(color, string(w.border.right))
+		}
 	}
 	w.Move(w.height-1, 0)
 	rem = (w.width - bcw) % hw
-	w.CPrint(color, string(w.border.bottomLeft)+repeat(w.border.horizontal, (w.width-bcw)/hw)+repeat(' ', rem)+string(w.border.bottomRight))
+	w.CPrint(color, string(w.border.bottomLeft)+repeat(w.border.bottom, (w.width-bcw)/hw)+repeat(' ', rem)+string(w.border.bottomRight))
 }
 
-func (w *LightWindow) csi(code string) {
+func (w *LightWindow) csi(code string) string {
-	w.renderer.csi(code)
+	return w.renderer.csi(code)
 }
 
-func (w *LightWindow) stderrInternal(str string, allowNLCR bool) {
+func (w *LightWindow) stderrInternal(str string, allowNLCR bool, resetCode string) {
-	w.renderer.stderrInternal(str, allowNLCR)
+	w.renderer.stderrInternal(str, allowNLCR, resetCode)
 }
 
 func (w *LightWindow) Top() int {
@@ -913,10 +961,10 @@ func colorCodes(fg Color, bg Color) []string {
 	return codes
 }
 
-func (w *LightWindow) csiColor(fg Color, bg Color, attr Attr) bool {
+func (w *LightWindow) csiColor(fg Color, bg Color, attr Attr) (bool, string) {
 	codes := append(attrCodes(attr), colorCodes(fg, bg)...)
-	w.csi(";" + strings.Join(codes, ";") + "m")
+	code := w.csi(";" + strings.Join(codes, ";") + "m")
-	return len(codes) > 0
+	return len(codes) > 0, code
 }
 
 func (w *LightWindow) Print(text string) {
@@ -928,16 +976,17 @@ func cleanse(str string) string {
 }
 
 func (w *LightWindow) CPrint(pair ColorPair, text string) {
-	w.csiColor(pair.Fg(), pair.Bg(), pair.Attr())
+	_, code := w.csiColor(pair.Fg(), pair.Bg(), pair.Attr())
-	w.stderrInternal(cleanse(text), false)
+	w.stderrInternal(cleanse(text), false, code)
 	w.csi("m")
 }
 
 func (w *LightWindow) cprint2(fg Color, bg Color, attr Attr, text string) {
-	if w.csiColor(fg, bg, attr) {
+	hasColors, code := w.csiColor(fg, bg, attr)
+	if hasColors {
 		defer w.csi("m")
 	}
-	w.stderrInternal(cleanse(text), false)
+	w.stderrInternal(cleanse(text), false, code)
 }
 
 type wrappedLine struct {
@@ -957,6 +1006,8 @@ func wrapLine(input string, prefixLength int, max int, tabstop int) []wrappedLin
 		if len(rs) == 1 && rs[0] == '\t' {
 			w = tabstop - (prefixLength+width)%tabstop
 			str = repeat(' ', w)
+		} else if rs[0] == '\r' {
+			w++
 		} else {
 			w = runewidth.StringWidth(str)
 		}
@@ -975,12 +1026,12 @@ func wrapLine(input string, prefixLength int, max int, tabstop int) []wrappedLin
 	return lines
 }
 
-func (w *LightWindow) fill(str string, onMove func()) FillReturn {
+func (w *LightWindow) fill(str string, resetCode string) FillReturn {
 	allLines := strings.Split(str, "\n")
 	for i, line := range allLines {
 		lines := wrapLine(line, w.posx, w.width, w.tabstop)
 		for j, wl := range lines {
-			w.stderrInternal(wl.text, false)
+			w.stderrInternal(wl.text, false, resetCode)
 			w.posx += wl.displayWidth
 
 			// Wrap line
@@ -990,7 +1041,7 @@ func (w *LightWindow) fill(str string, onMove func()) FillReturn {
 				}
 				w.MoveAndClear(w.posy, w.posx)
 				w.Move(w.posy+1, 0)
-				onMove()
+				w.renderer.stderr(resetCode)
 			}
 		}
 	}
@@ -999,22 +1050,26 @@ func (w *LightWindow) fill(str string, onMove func()) FillReturn {
 			return FillSuspend
 		}
 		w.Move(w.posy+1, 0)
-		onMove()
+		w.renderer.stderr(resetCode)
 		return FillNextLine
 	}
 	return FillContinue
 }
 
-func (w *LightWindow) setBg() {
+func (w *LightWindow) setBg() string {
 	if w.bg != colDefault {
-		w.csiColor(colDefault, w.bg, AttrRegular)
+		_, code := w.csiColor(colDefault, w.bg, AttrRegular)
+		return code
 	}
+	// Should clear dim attribute after ␍ in the preview window
+	// e.g. printf "foo\rbar" | fzf --ansi --preview 'printf "foo\rbar"'
+	return "\x1b[m"
 }
 
 func (w *LightWindow) Fill(text string) FillReturn {
 	w.Move(w.posy, w.posx)
-	w.setBg()
+	code := w.setBg()
-	return w.fill(text, w.setBg)
+	return w.fill(text, code)
 }
 
 func (w *LightWindow) CFill(fg Color, bg Color, attr Attr, text string) FillReturn {
@@ -1025,11 +1080,11 @@ func (w *LightWindow) CFill(fg Color, bg Color, attr Attr, text string) FillRetu
 	if bg == colDefault {
 		bg = w.bg
 	}
-	if w.csiColor(fg, bg, attr) {
+	if hasColors, resetCode := w.csiColor(fg, bg, attr); hasColors {
 		defer w.csi("m")
-		return w.fill(text, func() { w.csiColor(fg, bg, attr) })
+		return w.fill(text, resetCode)
 	}
-	return w.fill(text, w.setBg)
+	return w.fill(text, w.setBg())
 }
 
 func (w *LightWindow) FinishFill() {
@@ -1040,7 +1095,7 @@ func (w *LightWindow) FinishFill() {
 }
 
 func (w *LightWindow) Erase() {
-	w.drawBorder()
+	w.drawBorder(false)
 	// We don't erase the window here to avoid flickering during scroll
 	w.Move(0, 0)
 }

src/tui/tcell.go

@@ -8,6 +8,7 @@ import (
 
 	"github.com/gdamore/tcell/v2"
 	"github.com/gdamore/tcell/v2/encoding"
+	"github.com/junegunn/fzf/src/util"
 
 	"github.com/mattn/go-runewidth"
 	"github.com/rivo/uniseg"
@@ -97,6 +98,11 @@ const (
 	AttrClear     = Attr(1 << 8)
 )
 
+func (r *FullscreenRenderer) PassThrough(str string) {
+	// No-op
+	// https://github.com/gdamore/tcell/issues/363#issuecomment-680665073
+}
+
 func (r *FullscreenRenderer) Resize(maxHeightFunc func(int) int) {}
 
 func (r *FullscreenRenderer) defaultTheme() *ColorTheme {
@@ -412,6 +418,12 @@ func (r *FullscreenRenderer) GetChar() Event {
 		case tcell.KeyHome:
 			return Event{Home, 0, nil}
 		case tcell.KeyDelete:
+			if ctrl {
+				return Event{CtrlDelete, 0, nil}
+			}
+			if shift {
+				return Event{SDelete, 0, nil}
+			}
 			return Event{Del, 0, nil}
 		case tcell.KeyEnd:
 			return Event{End, 0, nil}
@@ -512,7 +524,7 @@ func (r *FullscreenRenderer) NewWindow(top int, left int, width int, height int,
 		height:      height,
 		normal:      normal,
 		borderStyle: borderStyle}
-	w.drawBorder()
+	w.drawBorder(false)
 	return w
 }
 
@@ -572,26 +584,27 @@ func (w *TcellWindow) printString(text string, pair ColorPair) {
 
 	gr := uniseg.NewGraphemes(text)
 	for gr.Next() {
+		st := style
 		rs := gr.Runes()
 
 		if len(rs) == 1 {
 			r := rs[0]
-			if r < rune(' ') { // ignore control characters
+			if r == '\r' {
-				continue
+				st = style.Dim(true)
+				rs[0] = '␍'
 			} else if r == '\n' {
-				w.lastY++
+				st = style.Dim(true)
-				lx = 0
+				rs[0] = '␊'
-				continue
+			} else if r < rune(' ') { // ignore control characters
-			} else if r == '\u000D' { // skip carriage return
 				continue
 			}
 		}
 		var xPos = w.left + w.lastX + lx
 		var yPos = w.top + w.lastY
 		if xPos < (w.left+w.width) && yPos < (w.top+w.height) {
-			_screen.SetContent(xPos, yPos, rs[0], rs[1:], style)
+			_screen.SetContent(xPos, yPos, rs[0], rs[1:], st)
 		}
-		lx += runewidth.StringWidth(string(rs))
+		lx += util.StringWidth(string(rs))
 	}
 	w.lastX += lx
 }
@@ -620,13 +633,22 @@ func (w *TcellWindow) fillString(text string, pair ColorPair) FillReturn {
 		Italic(a&Attr(tcell.AttrItalic) != 0)
 
 	gr := uniseg.NewGraphemes(text)
+Loop:
 	for gr.Next() {
+		st := style
 		rs := gr.Runes()
-		if len(rs) == 1 && rs[0] == '\n' {
+		if len(rs) == 1 {
+			r := rs[0]
+			switch r {
+			case '\r':
+				st = style.Dim(true)
+				rs[0] = '␍'
+			case '\n':
 				w.lastY++
 				w.lastX = 0
 				lx = 0
-			continue
+				continue Loop
+			}
 		}
 
 		// word wrap:
@@ -643,8 +665,8 @@ func (w *TcellWindow) fillString(text string, pair ColorPair) FillReturn {
 			return FillSuspend
 		}
 
-		_screen.SetContent(xPos, yPos, rs[0], rs[1:], style)
+		_screen.SetContent(xPos, yPos, rs[0], rs[1:], st)
-		lx += runewidth.StringWidth(string(rs))
+		lx += util.StringWidth(string(rs))
 	}
 	w.lastX += lx
 	if w.lastX == w.width {
@@ -670,7 +692,11 @@ func (w *TcellWindow) CFill(fg Color, bg Color, a Attr, str string) FillReturn {
 	return w.fillString(str, NewColorPair(fg, bg, a))
 }
 
-func (w *TcellWindow) drawBorder() {
+func (w *TcellWindow) DrawHBorder() {
+	w.drawBorder(true)
+}
+
+func (w *TcellWindow) drawBorder(onlyHorizontal bool) {
 	shape := w.borderStyle.shape
 	if shape == BorderNone {
 		return
@@ -692,9 +718,9 @@ func (w *TcellWindow) drawBorder() {
 		style = w.normal.style()
 	}
 
-	hw := runewidth.RuneWidth(w.borderStyle.horizontal)
+	hw := runewidth.RuneWidth(w.borderStyle.top)
 	switch shape {
-	case BorderRounded, BorderSharp, BorderBold, BorderDouble, BorderHorizontal, BorderTop:
+	case BorderRounded, BorderSharp, BorderBold, BorderBlock, BorderThinBlock, BorderDouble, BorderHorizontal, BorderTop:
 		max := right - 2*hw
 		if shape == BorderHorizontal || shape == BorderTop {
 			max = right - hw
@@ -705,34 +731,36 @@ func (w *TcellWindow) drawBorder() {
 		//       ==================
 		//                 (  HH  ) => TR is ignored
 		for x := left; x <= max; x += hw {
-			_screen.SetContent(x, top, w.borderStyle.horizontal, nil, style)
+			_screen.SetContent(x, top, w.borderStyle.top, nil, style)
 		}
 	}
 	switch shape {
-	case BorderRounded, BorderSharp, BorderBold, BorderDouble, BorderHorizontal, BorderBottom:
+	case BorderRounded, BorderSharp, BorderBold, BorderBlock, BorderThinBlock, BorderDouble, BorderHorizontal, BorderBottom:
 		max := right - 2*hw
 		if shape == BorderHorizontal || shape == BorderBottom {
 			max = right - hw
 		}
 		for x := left; x <= max; x += hw {
-			_screen.SetContent(x, bot-1, w.borderStyle.horizontal, nil, style)
+			_screen.SetContent(x, bot-1, w.borderStyle.bottom, nil, style)
 		}
 	}
+	if !onlyHorizontal {
 		switch shape {
-	case BorderRounded, BorderSharp, BorderBold, BorderDouble, BorderVertical, BorderLeft:
+		case BorderRounded, BorderSharp, BorderBold, BorderBlock, BorderThinBlock, BorderDouble, BorderVertical, BorderLeft:
 			for y := top; y < bot; y++ {
-			_screen.SetContent(left, y, w.borderStyle.vertical, nil, style)
+				_screen.SetContent(left, y, w.borderStyle.left, nil, style)
 			}
 		}
 		switch shape {
-	case BorderRounded, BorderSharp, BorderBold, BorderDouble, BorderVertical, BorderRight:
+		case BorderRounded, BorderSharp, BorderBold, BorderBlock, BorderThinBlock, BorderDouble, BorderVertical, BorderRight:
-		vw := runewidth.RuneWidth(w.borderStyle.vertical)
+			vw := runewidth.RuneWidth(w.borderStyle.right)
 			for y := top; y < bot; y++ {
-			_screen.SetContent(right-vw, y, w.borderStyle.vertical, nil, style)
+				_screen.SetContent(right-vw, y, w.borderStyle.right, nil, style)
+			}
 		}
 	}
 	switch shape {
-	case BorderRounded, BorderSharp, BorderBold, BorderDouble:
+	case BorderRounded, BorderSharp, BorderBold, BorderBlock, BorderThinBlock, BorderDouble:
 		_screen.SetContent(left, top, w.borderStyle.topLeft, nil, style)
 		_screen.SetContent(right-runewidth.RuneWidth(w.borderStyle.topRight), top, w.borderStyle.topRight, nil, style)
 		_screen.SetContent(left, bot-1, w.borderStyle.bottomLeft, nil, style)

src/tui/ttyname_unix.go

@@ -3,7 +3,6 @@
 package tui
 
 import (
-	"io/ioutil"
 	"os"
 	"syscall"
 )
@@ -17,13 +16,17 @@ func ttyname() string {
 	}
 
 	for _, prefix := range devPrefixes {
-		files, err := ioutil.ReadDir(prefix)
+		files, err := os.ReadDir(prefix)
 		if err != nil {
 			continue
 		}
 
 		for _, file := range files {
-			if stat, ok := file.Sys().(*syscall.Stat_t); ok && stat.Rdev == stderr.Rdev {
+			info, err := file.Info()
+			if err != nil {
+				continue
+			}
+			if stat, ok := info.Sys().(*syscall.Stat_t); ok && stat.Rdev == stderr.Rdev {
 				return prefix + file.Name()
 			}
 		}

src/tui/tui.go

@@ -41,6 +41,7 @@ const (
 	CtrlZ
 	ESC
 	CtrlSpace
+	CtrlDelete
 
 	// https://apple.stackexchange.com/questions/24261/how-do-i-send-c-that-is-control-slash-to-the-terminal
 	CtrlBackSlash
@@ -54,6 +55,14 @@ const (
 	DoubleClick
 	LeftClick
 	RightClick
+	SLeftClick
+	SRightClick
+	ScrollUp
+	ScrollDown
+	SScrollUp
+	SScrollDown
+	PreviewScrollUp
+	PreviewScrollDown
 
 	BTab
 	BSpace
@@ -74,6 +83,7 @@ const (
 	SDown
 	SLeft
 	SRight
+	SDelete
 
 	F1
 	F2
@@ -92,6 +102,9 @@ const (
 	BackwardEOF
 	Start
 	Load
+	Focus
+	One
+	Zero
 
 	AltBS
 
@@ -271,6 +284,8 @@ type ColorTheme struct {
 	Separator        ColorAttr
 	Scrollbar        ColorAttr
 	Border           ColorAttr
+	PreviewBorder    ColorAttr
+	PreviewScrollbar ColorAttr
 	BorderLabel      ColorAttr
 	PreviewLabel     ColorAttr
 }
@@ -281,6 +296,15 @@ type Event struct {
 	MouseEvent *MouseEvent
 }
 
+func (e Event) Is(types ...EventType) bool {
+	for _, t := range types {
+		if e.Type == t {
+			return true
+		}
+	}
+	return false
+}
+
 type MouseEvent struct {
 	Y      int
 	X      int
@@ -298,6 +322,8 @@ const (
 	BorderRounded
 	BorderSharp
 	BorderBold
+	BorderBlock
+	BorderThinBlock
 	BorderDouble
 	BorderHorizontal
 	BorderVertical
@@ -325,8 +351,10 @@ func (s BorderShape) HasTop() bool {
 
 type BorderStyle struct {
 	shape       BorderShape
-	horizontal  rune
+	top         rune
-	vertical    rune
+	bottom      rune
+	left        rune
+	right       rune
 	topLeft     rune
 	topRight    rune
 	bottomLeft  rune
@@ -339,8 +367,10 @@ func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
 	if !unicode {
 		return BorderStyle{
 			shape:       shape,
-			horizontal:  '-',
+			top:         '-',
-			vertical:    '|',
+			bottom:      '-',
+			left:        '|',
+			right:       '|',
 			topLeft:     '+',
 			topRight:    '+',
 			bottomLeft:  '+',
@@ -351,8 +381,10 @@ func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
 	case BorderSharp:
 		return BorderStyle{
 			shape:       shape,
-			horizontal:  '─',
+			top:         '─',
-			vertical:    '│',
+			bottom:      '─',
+			left:        '│',
+			right:       '│',
 			topLeft:     '┌',
 			topRight:    '┐',
 			bottomLeft:  '└',
@@ -361,18 +393,54 @@ func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
 	case BorderBold:
 		return BorderStyle{
 			shape:       shape,
-			horizontal:  '━',
+			top:         '━',
-			vertical:    '┃',
+			bottom:      '━',
+			left:        '┃',
+			right:       '┃',
 			topLeft:     '┏',
 			topRight:    '┓',
 			bottomLeft:  '┗',
 			bottomRight: '┛',
 		}
+	case BorderBlock:
+		// ▛▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▀▜
+		// ▌                  ▐
+		// ▙▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▄▟
+		return BorderStyle{
+			shape:       shape,
+			top:         '▀',
+			bottom:      '▄',
+			left:        '▌',
+			right:       '▐',
+			topLeft:     '▛',
+			topRight:    '▜',
+			bottomLeft:  '▙',
+			bottomRight: '▟',
+		}
+
+	case BorderThinBlock:
+		// 🭽▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔🭾
+		// ▏                  ▕
+		// 🭼▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁▁🭿
+		return BorderStyle{
+			shape:       shape,
+			top:         '▔',
+			bottom:      '▁',
+			left:        '▏',
+			right:       '▕',
+			topLeft:     '🭽',
+			topRight:    '🭾',
+			bottomLeft:  '🭼',
+			bottomRight: '🭿',
+		}
+
 	case BorderDouble:
 		return BorderStyle{
 			shape:       shape,
-			horizontal:  '═',
+			top:         '═',
-			vertical:    '║',
+			bottom:      '═',
+			left:        '║',
+			right:       '║',
 			topLeft:     '╔',
 			topRight:    '╗',
 			bottomLeft:  '╚',
@@ -381,8 +449,10 @@ func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
 	}
 	return BorderStyle{
 		shape:       shape,
-		horizontal:  '─',
+		top:         '─',
-		vertical:    '│',
+		bottom:      '─',
+		left:        '│',
+		right:       '│',
 		topLeft:     '╭',
 		topRight:    '╮',
 		bottomLeft:  '╰',
@@ -393,8 +463,10 @@ func MakeBorderStyle(shape BorderShape, unicode bool) BorderStyle {
 func MakeTransparentBorder() BorderStyle {
 	return BorderStyle{
 		shape:       BorderRounded,
-		horizontal:  ' ',
+		top:         ' ',
-		vertical:    ' ',
+		bottom:      ' ',
+		left:        ' ',
+		right:       ' ',
 		topLeft:     ' ',
 		topRight:    ' ',
 		bottomLeft:  ' ',
@@ -410,6 +482,7 @@ type Renderer interface {
 	RefreshWindows(windows []Window)
 	Refresh()
 	Close()
+	PassThrough(string)
 	NeedScrollbarRedraw() bool
 
 	GetChar() Event
@@ -426,6 +499,7 @@ type Window interface {
 	Width() int
 	Height() int
 
+	DrawHBorder()
 	Refresh()
 	FinishFill()
 	Close()
@@ -490,6 +564,8 @@ var (
 	ColPreviewBorder        ColorPair
 	ColBorderLabel          ColorPair
 	ColPreviewLabel         ColorPair
+	ColPreviewScrollbar     ColorPair
+	ColPreviewSpinner       ColorPair
 )
 
 func EmptyTheme() *ColorTheme {
@@ -514,6 +590,8 @@ func EmptyTheme() *ColorTheme {
 		PreviewFg:        ColorAttr{colUndefined, AttrUndefined},
 		PreviewBg:        ColorAttr{colUndefined, AttrUndefined},
 		Gutter:           ColorAttr{colUndefined, AttrUndefined},
+		PreviewBorder:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewScrollbar: ColorAttr{colUndefined, AttrUndefined},
 		PreviewLabel:     ColorAttr{colUndefined, AttrUndefined},
 		Separator:        ColorAttr{colUndefined, AttrUndefined},
 		Scrollbar:        ColorAttr{colUndefined, AttrUndefined},
@@ -523,28 +601,30 @@ func EmptyTheme() *ColorTheme {
 func NoColorTheme() *ColorTheme {
 	return &ColorTheme{
 		Colored:          false,
-		Input:        ColorAttr{colDefault, AttrRegular},
+		Input:            ColorAttr{colDefault, AttrUndefined},
-		Fg:           ColorAttr{colDefault, AttrRegular},
+		Fg:               ColorAttr{colDefault, AttrUndefined},
-		Bg:           ColorAttr{colDefault, AttrRegular},
+		Bg:               ColorAttr{colDefault, AttrUndefined},
-		DarkBg:       ColorAttr{colDefault, AttrRegular},
+		DarkBg:           ColorAttr{colDefault, AttrUndefined},
-		Prompt:       ColorAttr{colDefault, AttrRegular},
+		Prompt:           ColorAttr{colDefault, AttrUndefined},
 		Match:            ColorAttr{colDefault, Underline},
 		Current:          ColorAttr{colDefault, Reverse},
 		CurrentMatch:     ColorAttr{colDefault, Reverse | Underline},
-		Spinner:      ColorAttr{colDefault, AttrRegular},
+		Spinner:          ColorAttr{colDefault, AttrUndefined},
-		Info:         ColorAttr{colDefault, AttrRegular},
+		Info:             ColorAttr{colDefault, AttrUndefined},
-		Cursor:       ColorAttr{colDefault, AttrRegular},
+		Cursor:           ColorAttr{colDefault, AttrUndefined},
-		Selected:     ColorAttr{colDefault, AttrRegular},
+		Selected:         ColorAttr{colDefault, AttrUndefined},
-		Header:       ColorAttr{colDefault, AttrRegular},
+		Header:           ColorAttr{colDefault, AttrUndefined},
-		Border:       ColorAttr{colDefault, AttrRegular},
+		Border:           ColorAttr{colDefault, AttrUndefined},
-		BorderLabel:  ColorAttr{colDefault, AttrRegular},
+		BorderLabel:      ColorAttr{colDefault, AttrUndefined},
-		Disabled:     ColorAttr{colDefault, AttrRegular},
+		Disabled:         ColorAttr{colDefault, AttrUndefined},
-		PreviewFg:    ColorAttr{colDefault, AttrRegular},
+		PreviewFg:        ColorAttr{colDefault, AttrUndefined},
-		PreviewBg:    ColorAttr{colDefault, AttrRegular},
+		PreviewBg:        ColorAttr{colDefault, AttrUndefined},
-		Gutter:       ColorAttr{colDefault, AttrRegular},
+		Gutter:           ColorAttr{colDefault, AttrUndefined},
-		PreviewLabel: ColorAttr{colDefault, AttrRegular},
+		PreviewBorder:    ColorAttr{colDefault, AttrUndefined},
-		Separator:    ColorAttr{colDefault, AttrRegular},
+		PreviewScrollbar: ColorAttr{colDefault, AttrUndefined},
-		Scrollbar:    ColorAttr{colDefault, AttrRegular},
+		PreviewLabel:     ColorAttr{colDefault, AttrUndefined},
+		Separator:        ColorAttr{colDefault, AttrUndefined},
+		Scrollbar:        ColorAttr{colDefault, AttrUndefined},
 	}
 }
 
@@ -575,6 +655,8 @@ func init() {
 		PreviewFg:        ColorAttr{colUndefined, AttrUndefined},
 		PreviewBg:        ColorAttr{colUndefined, AttrUndefined},
 		Gutter:           ColorAttr{colUndefined, AttrUndefined},
+		PreviewBorder:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewScrollbar: ColorAttr{colUndefined, AttrUndefined},
 		PreviewLabel:     ColorAttr{colUndefined, AttrUndefined},
 		Separator:        ColorAttr{colUndefined, AttrUndefined},
 		Scrollbar:        ColorAttr{colUndefined, AttrUndefined},
@@ -600,6 +682,8 @@ func init() {
 		PreviewFg:        ColorAttr{colUndefined, AttrUndefined},
 		PreviewBg:        ColorAttr{colUndefined, AttrUndefined},
 		Gutter:           ColorAttr{colUndefined, AttrUndefined},
+		PreviewBorder:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewScrollbar: ColorAttr{colUndefined, AttrUndefined},
 		PreviewLabel:     ColorAttr{colUndefined, AttrUndefined},
 		Separator:        ColorAttr{colUndefined, AttrUndefined},
 		Scrollbar:        ColorAttr{colUndefined, AttrUndefined},
@@ -625,6 +709,8 @@ func init() {
 		PreviewFg:        ColorAttr{colUndefined, AttrUndefined},
 		PreviewBg:        ColorAttr{colUndefined, AttrUndefined},
 		Gutter:           ColorAttr{colUndefined, AttrUndefined},
+		PreviewBorder:    ColorAttr{colUndefined, AttrUndefined},
+		PreviewScrollbar: ColorAttr{colUndefined, AttrUndefined},
 		PreviewLabel:     ColorAttr{colUndefined, AttrUndefined},
 		Separator:        ColorAttr{colUndefined, AttrUndefined},
 		Scrollbar:        ColorAttr{colUndefined, AttrUndefined},
@@ -668,8 +754,10 @@ func initTheme(theme *ColorTheme, baseTheme *ColorTheme, forceBlack bool) {
 	theme.PreviewFg = o(theme.Fg, theme.PreviewFg)
 	theme.PreviewBg = o(theme.Bg, theme.PreviewBg)
 	theme.PreviewLabel = o(theme.BorderLabel, theme.PreviewLabel)
+	theme.PreviewBorder = o(theme.Border, theme.PreviewBorder)
 	theme.Separator = o(theme.Border, theme.Separator)
 	theme.Scrollbar = o(theme.Border, theme.Scrollbar)
+	theme.PreviewScrollbar = o(theme.PreviewBorder, theme.PreviewScrollbar)
 
 	initPalette(theme)
 }
@@ -707,5 +795,7 @@ func initPalette(theme *ColorTheme) {
 	ColBorderLabel = pair(theme.BorderLabel, theme.Bg)
 	ColPreviewLabel = pair(theme.PreviewLabel, theme.PreviewBg)
 	ColPreview = pair(theme.PreviewFg, theme.PreviewBg)
-	ColPreviewBorder = pair(theme.Border, theme.PreviewBg)
+	ColPreviewBorder = pair(theme.PreviewBorder, theme.PreviewBg)
+	ColPreviewScrollbar = pair(theme.PreviewScrollbar, theme.PreviewBg)
+	ColPreviewSpinner = pair(theme.Spinner, theme.PreviewBg)
 }

src/util/util.go

@@ -11,6 +11,11 @@ import (
 	"github.com/rivo/uniseg"
 )
 
+// StringWidth returns string width where each CR/LF character takes 1 column
+func StringWidth(s string) int {
+	return runewidth.StringWidth(s) + strings.Count(s, "\n") + strings.Count(s, "\r")
+}
+
 // RunesWidth returns runes width
 func RunesWidth(runes []rune, prefixWidth int, tabstop int, limit int) (int, int) {
 	width := 0
@@ -22,8 +27,7 @@ func RunesWidth(runes []rune, prefixWidth int, tabstop int, limit int) (int, int
 		if len(rs) == 1 && rs[0] == '\t' {
 			w = tabstop - (prefixWidth+width)%tabstop
 		} else {
-			s := string(rs)
+			w = StringWidth(string(rs))
-			w = runewidth.StringWidth(s) + strings.Count(s, "\n")
 		}
 		width += w
 		if width > limit {
@@ -41,7 +45,7 @@ func Truncate(input string, limit int) ([]rune, int) {
 	gr := uniseg.NewGraphemes(input)
 	for gr.Next() {
 		rs := gr.Runes()
-		w := runewidth.StringWidth(string(rs))
+		w := StringWidth(string(rs))
 		if width+w > limit {
 			return runes, width
 		}

src/util/util_test.go

@@ -70,7 +70,7 @@ func TestMin32(t *testing.T) {
 	}
 }
 
-func TestContrain(t *testing.T) {
+func TestConstrain(t *testing.T) {
 	if Constrain(-3, -1, 3) != -1 {
 		t.Error("Expected", -1)
 	}
@@ -83,7 +83,7 @@ func TestContrain(t *testing.T) {
 	}
 }
 
-func TestContrain32(t *testing.T) {
+func TestConstrain32(t *testing.T) {
 	if Constrain32(-3, -1, 3) != -1 {
 		t.Error("Expected", -1)
 	}
@@ -115,7 +115,7 @@ func TestAsUint16(t *testing.T) {
 	if AsUint16(math.MinInt16) != 0 {
 		t.Error("Expected", 0)
 	}
-	if AsUint16(math.MaxUint32) != math.MaxUint16 {
+	if AsUint16(math.MaxUint16+1) != math.MaxUint16 {
 		t.Error("Expected", math.MaxUint16)
 	}
 }
@@ -184,3 +184,10 @@ func TestRepeatToFill(t *testing.T) {
 		t.Error("Expected:", strings.Repeat("abcde", 4)+"abcde"[:2])
 	}
 }
+
+func TestStringWidth(t *testing.T) {
+	w := StringWidth("─")
+	if w != 1 {
+		t.Errorf("Expected: %d, Actual: %d", 1, w)
+	}
+}

src/util/util_unix.go

@@ -6,6 +6,8 @@ import (
 	"os"
 	"os/exec"
 	"syscall"
+
+	"golang.org/x/sys/unix"
 )
 
 // ExecCommand executes the given command with $SHELL
@@ -45,3 +47,7 @@ func SetNonblock(file *os.File, nonblock bool) {
 func Read(fd int, b []byte) (int, error) {
 	return syscall.Read(int(fd), b)
 }
+
+func SetStdin(file *os.File) {
+	unix.Dup2(int(file.Fd()), 0)
+}

src/util/util_windows.go

@@ -81,3 +81,7 @@ func SetNonblock(file *os.File, nonblock bool) {
 func Read(fd int, b []byte) (int, error) {
 	return syscall.Read(syscall.Handle(fd), b)
 }
+
+func SetStdin(file *os.File) {
+	// No-op
+}

test/test_go.rb

@@ -8,6 +8,7 @@ require 'shellwords'
 require 'erb'
 require 'tempfile'
 require 'net/http'
+require 'json'
 
 TEMPLATE = DATA.read
 UNSETS = %w[
@@ -16,6 +17,7 @@ UNSETS = %w[
   FZF_CTRL_T_COMMAND FZF_CTRL_T_OPTS
   FZF_ALT_C_COMMAND
   FZF_ALT_C_OPTS FZF_CTRL_R_OPTS
+  FZF_API_KEY
   fish_history
 ].freeze
 DEFAULT_TIMEOUT = 10
@@ -180,7 +182,7 @@ class TestBase < Minitest::Test
   end
 
   def writelines(path, lines)
-    File.unlink(path) while File.exist?(path)
+    FileUtils.rm_f(path) while File.exist?(path)
     File.open(path, 'w') { |f| f.puts lines }
   end
 
@@ -188,7 +190,7 @@ class TestBase < Minitest::Test
     wait { assert_path_exists tempname }
     File.read(tempname)
   ensure
-    File.unlink(tempname) while File.exist?(tempname)
+    FileUtils.rm_f(tempname) while File.exist?(tempname)
     @temp_suffix += 1
     tmux.prepare
   end
@@ -905,11 +907,7 @@ class TestGoFZF < TestBase
     history_file = '/tmp/fzf-test-history'
 
     # History with limited number of entries
-    begin
+    FileUtils.rm_f(history_file)
-      File.unlink(history_file)
-    rescue StandardError
-      nil
-    end
     opts = "--history=#{history_file} --history-size=4"
     input = %w[00 11 22 33 44]
     input.each do |keys|
@@ -955,7 +953,7 @@ class TestGoFZF < TestBase
     tmux.until { |lines| assert_equal '> 33', lines[-1] }
     tmux.send_keys :Enter
   ensure
-    File.unlink(history_file)
+    FileUtils.rm_f(history_file)
   end
 
   def test_execute
@@ -984,11 +982,7 @@ class TestGoFZF < TestBase
       ], File.readlines(output, chomp: true)
     end
   ensure
-    begin
+    FileUtils.rm_f(output)
-      File.unlink(output)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_execute_multi
@@ -1013,20 +1007,12 @@ class TestGoFZF < TestBase
       ], File.readlines(output, chomp: true)
     end
   ensure
-    begin
+    FileUtils.rm_f(output)
-      File.unlink(output)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_execute_plus_flag
     output = tempname + '.tmp'
-    begin
+    FileUtils.rm_f(output)
-      File.unlink(output)
-    rescue StandardError
-      nil
-    end
     writelines(tempname, ['foo bar', '123 456'])
 
     tmux.send_keys "cat #{tempname} | #{FZF} --multi --bind 'x:execute-silent(echo {+}/{}/{+2}/{2} >> #{output})'", :Enter
@@ -1059,21 +1045,13 @@ class TestGoFZF < TestBase
       ], File.readlines(output, chomp: true)
     end
   rescue StandardError
-    begin
+    FileUtils.rm_f(output)
-      File.unlink(output)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_execute_shell
     # Custom script to use as $SHELL
     output = tempname + '.out'
-    begin
+    FileUtils.rm_f(output)
-      File.unlink(output)
-    rescue StandardError
-      nil
-    end
     writelines(tempname,
                ['#!/usr/bin/env bash', "echo $1 / $2 > #{output}"])
     system("chmod +x #{tempname}")
@@ -1087,11 +1065,7 @@ class TestGoFZF < TestBase
       assert_equal ["-c / 'foo'bar"], File.readlines(output, chomp: true)
     end
   ensure
-    begin
+    FileUtils.rm_f(output)
-      File.unlink(output)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_cycle
@@ -1240,6 +1214,39 @@ class TestGoFZF < TestBase
     end
   end
 
+  def test_toggle_header
+    tmux.send_keys "seq 4 | #{FZF} --header-lines 2 --header foo --bind space:toggle-header --header-first --height 10 --border", :Enter
+    before = <<~OUTPUT
+      ╭───────
+      │
+      │   4
+      │ > 3
+      │   2/2
+      │ >
+      │   2
+      │   1
+      │   foo
+      ╰───────
+    OUTPUT
+    tmux.until { assert_block(before, _1) }
+    tmux.send_keys :Space
+    after = <<~OUTPUT
+      ╭───────
+      │
+      │
+      │
+      │
+      │   4
+      │ > 3
+      │   2/2
+      │ >
+      ╰───────
+    OUTPUT
+    tmux.until { assert_block(after, _1) }
+    tmux.send_keys :Space
+    tmux.until { assert_block(before, _1) }
+  end
+
   def test_cancel
     tmux.send_keys "seq 10 | #{fzf('--bind 2:cancel')}", :Enter
     tmux.until { |lines| assert_equal '  10/10', lines[-2] }
@@ -1485,6 +1492,83 @@ class TestGoFZF < TestBase
     tmux.until { |lines| assert_includes lines[1], ' {5-1  3 4} ' }
   end
 
+  def test_toggle_preview_without_default_preview_command
+    tmux.send_keys %(seq 100 | #{FZF} --bind 'space:preview(echo [{}]),enter:toggle-preview' --preview-window up,border-double), :Enter
+    tmux.until do |lines|
+      assert_equal 100, lines.match_count
+      refute_includes lines[1], '║ [1]'
+    end
+
+    # toggle-preview should do nothing
+    tmux.send_keys :Enter
+    tmux.until { |lines| refute_includes lines[1], '║ [1]' }
+    tmux.send_keys :Up
+    tmux.until do |lines|
+      refute_includes lines[1], '║ [1]'
+      refute_includes lines[1], '║ [2]'
+    end
+
+    tmux.send_keys :Up
+    tmux.until do |lines|
+      assert_includes lines, '> 3'
+      refute_includes lines[1], '║ [3]'
+    end
+
+    # One-off preview action
+    tmux.send_keys :Space
+    tmux.until { |lines| assert_includes lines[1], '║ [3]' }
+
+    # toggle-preview to hide it
+    tmux.send_keys :Enter
+    tmux.until { |lines| refute_includes lines[1], '║ [3]' }
+
+    # toggle-preview again does nothing
+    tmux.send_keys :Enter, :Up
+    tmux.until do |lines|
+      assert_includes lines, '> 4'
+      refute_includes lines[1], '║ [4]'
+    end
+  end
+
+  def test_show_and_hide_preview
+    tmux.send_keys %(seq 100 | #{FZF} --preview-window hidden,border-bold --preview 'echo [{}]' --bind 'a:show-preview,b:hide-preview'), :Enter
+
+    # Hidden by default
+    tmux.until do |lines|
+      assert_equal 100, lines.match_count
+      refute_includes lines[1], '┃ [1]'
+    end
+
+    # Show
+    tmux.send_keys :a
+    tmux.until { |lines| assert_includes lines[1], '┃ [1]' }
+
+    # Already shown
+    tmux.send_keys :a
+    tmux.send_keys :Up
+    tmux.until { |lines| assert_includes lines[1], '┃ [2]' }
+
+    # Hide
+    tmux.send_keys :b
+    tmux.send_keys :Up
+    tmux.until do |lines|
+      assert_includes lines, '> 3'
+      refute_includes lines[1], '┃ [3]'
+    end
+
+    # Already hidden
+    tmux.send_keys :b
+    tmux.send_keys :Up
+    tmux.until do |lines|
+      assert_includes lines, '> 4'
+      refute_includes lines[1], '┃ [4]'
+    end
+
+    # Show it again
+    tmux.send_keys :a
+    tmux.until { |lines| assert_includes lines[1], '┃ [4]' }
+  end
+
   def test_preview_hidden
     tmux.send_keys %(seq 1000 | #{FZF} --preview 'echo {{}-{}-$FZF_PREVIEW_LINES-$FZF_PREVIEW_COLUMNS}' --preview-window down:1:hidden --bind ?:toggle-preview), :Enter
     tmux.until { |lines| assert_equal '>', lines[-1] }
@@ -1497,11 +1581,7 @@ class TestGoFZF < TestBase
   end
 
   def test_preview_size_0
-    begin
+    FileUtils.rm_f(tempname)
-      File.unlink(tempname)
-    rescue StandardError
-      nil
-    end
     tmux.send_keys %(seq 100 | #{FZF} --reverse --preview 'echo {} >> #{tempname}; echo ' --preview-window 0 --bind space:toggle-preview), :Enter
     tmux.until do |lines|
       assert_equal 100, lines.item_count
@@ -1526,6 +1606,32 @@ class TestGoFZF < TestBase
     end
   end
 
+  def test_preview_size_0_hidden
+    FileUtils.rm_f(tempname)
+    tmux.send_keys %(seq 100 | #{FZF} --reverse --preview 'echo {} >> #{tempname}; echo ' --preview-window 0,hidden --bind space:toggle-preview), :Enter
+    tmux.until { |lines| assert_equal 100, lines.item_count }
+    tmux.send_keys :Down, :Down
+    tmux.until { |lines| assert_includes lines, '> 3' }
+    wait { refute_path_exists tempname }
+    tmux.send_keys :Space
+    wait do
+      assert_path_exists tempname
+      assert_equal %w[3], File.readlines(tempname, chomp: true)
+    end
+    tmux.send_keys :Down
+    wait do
+      assert_equal %w[3 4], File.readlines(tempname, chomp: true)
+    end
+    tmux.send_keys :Space, :Down
+    tmux.until { |lines| assert_includes lines, '> 5' }
+    tmux.send_keys :Down
+    tmux.until { |lines| assert_includes lines, '> 6' }
+    tmux.send_keys :Space
+    wait do
+      assert_equal %w[3 4 6], File.readlines(tempname, chomp: true)
+    end
+  end
+
   def test_preview_flags
     tmux.send_keys %(seq 10 | sed 's/^/:: /; s/$/  /' |
         #{FZF} --multi --preview 'echo {{2}/{s2}/{+2}/{+s2}/{q}/{n}/{+n}}'), :Enter
@@ -1587,6 +1693,11 @@ class TestGoFZF < TestBase
     tmux.until { |lines| assert_equal '> 1', lines[-2] }
   end
 
+  def test_info_inline_separator
+    tmux.send_keys 'seq 10 | fzf --info=inline:___ --no-separator', :Enter
+    tmux.until { |lines| assert_equal '>  ___10/10', lines[-1] }
+  end
+
   def test_change_first_last
     tmux.send_keys %(seq 1000 | #{FZF} --bind change:first,alt-Z:last), :Enter
     tmux.until { |lines| assert_equal 1000, lines.match_count }
@@ -1789,6 +1900,67 @@ class TestGoFZF < TestBase
     tmux.until { |lines| assert_equal '>', lines.last }
   end
 
+  def test_change_and_transform_header
+    [
+      'space:change-header:$(seq 4)',
+      'space:transform-header:seq 4'
+    ].each_with_index do |binding, i|
+      tmux.send_keys %(seq 3 | #{FZF} --header-lines 2 --header bar --bind "#{binding}"), :Enter
+      expected = <<~OUTPUT
+        > 3
+          2
+          1
+          bar
+          1/1
+        >
+      OUTPUT
+      tmux.until { assert_block(expected, _1) }
+      tmux.send_keys :Space
+      expected = <<~OUTPUT
+        > 3
+          2
+          1
+          1
+          2
+          3
+          4
+          1/1
+        >
+      OUTPUT
+      tmux.until { assert_block(expected, _1) }
+      next unless i.zero?
+
+      teardown
+      setup
+    end
+  end
+
+  def test_change_header
+    tmux.send_keys %(seq 3 | #{FZF} --header-lines 2 --header bar --bind "space:change-header:$(seq 4)"), :Enter
+    expected = <<~OUTPUT
+      > 3
+        2
+        1
+        bar
+        1/1
+      >
+    OUTPUT
+    tmux.until { assert_block(expected, _1) }
+    tmux.send_keys :Space
+    expected = <<~OUTPUT
+      > 3
+        2
+        1
+        1
+        2
+        3
+        4
+        1/1
+      >
+    OUTPUT
+    tmux.until { assert_block(expected, _1) }
+  end
+
   def test_change_query
     tmux.send_keys %(: | #{FZF} --query foo --bind space:change-query:foobar), :Enter
     tmux.until { |lines| assert_equal 0, lines.item_count }
@@ -1854,7 +2026,7 @@ class TestGoFZF < TestBase
 
   def test_keep_right
     tmux.send_keys "seq 10000 | #{FZF} --read0 --keep-right", :Enter
-    tmux.until { |lines| assert lines.any_include?('9999 10000') }
+    tmux.until { |lines| assert lines.any_include?('9999␊10000') }
   end
 
   def test_backward_eof
@@ -2082,11 +2254,7 @@ class TestGoFZF < TestBase
     wait { refute system("pgrep -f #{script}") }
   ensure
     system("pkill -9 -f #{script}")
-    begin
+    FileUtils.rm_f(script)
-      File.unlink(script)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_kill_default_command_on_accept
@@ -2104,11 +2272,7 @@ class TestGoFZF < TestBase
     wait { refute system("pgrep -f #{script}") }
   ensure
     system("pkill -9 -f #{script}")
-    begin
+    FileUtils.rm_f(script)
-      File.unlink(script)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_kill_reload_command_on_abort
@@ -2129,11 +2293,7 @@ class TestGoFZF < TestBase
     wait { refute system("pgrep -f #{script}") }
   ensure
     system("pkill -9 -f #{script}")
-    begin
+    FileUtils.rm_f(script)
-      File.unlink(script)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_kill_reload_command_on_accept
@@ -2153,11 +2313,7 @@ class TestGoFZF < TestBase
     wait { refute system("pgrep -f #{script}") }
   ensure
     system("pkill -9 -f #{script}")
-    begin
+    FileUtils.rm_f(script)
-      File.unlink(script)
-    rescue StandardError
-      nil
-    end
   end
 
   def test_preview_header
@@ -2372,6 +2528,39 @@ class TestGoFZF < TestBase
     end
   end
 
+  def test_change_preview_window_rotate_hidden
+    tmux.send_keys "seq 100 | #{FZF} --preview-window hidden --preview 'echo =={}==' --bind '" \
+      "a:change-preview-window(nohidden||down,1|)'", :Enter
+    tmux.until { |lines| assert_equal 100, lines.match_count }
+    tmux.until { |lines| refute_includes lines[1], '==1==' }
+    tmux.send_keys 'a'
+    tmux.until { |lines| assert_includes lines[1], '==1==' }
+    tmux.send_keys 'a'
+    tmux.until { |lines| refute_includes lines[1], '==1==' }
+    tmux.send_keys 'a'
+    tmux.until { |lines| assert_includes lines[-2], '==1==' }
+    tmux.send_keys 'a'
+    tmux.until { |lines| refute_includes lines[-2], '==1==' }
+    tmux.send_keys 'a'
+    tmux.until { |lines| assert_includes lines[1], '==1==' }
+  end
+
+  def test_change_preview_window_rotate_hidden_down
+    tmux.send_keys "seq 100 | #{FZF} --bind '?:change-preview-window:up||down|' --preview 'echo =={}==' --preview-window hidden,down,1", :Enter
+    tmux.until { |lines| assert_equal 100, lines.match_count }
+    tmux.until { |lines| refute_includes lines[1], '==1==' }
+    tmux.send_keys '?'
+    tmux.until { |lines| assert_includes lines[1], '==1==' }
+    tmux.send_keys '?'
+    tmux.until { |lines| refute_includes lines[1], '==1==' }
+    tmux.send_keys '?'
+    tmux.until { |lines| assert_includes lines[-2], '==1==' }
+    tmux.send_keys '?'
+    tmux.until { |lines| refute_includes lines[-2], '==1==' }
+    tmux.send_keys '?'
+    tmux.until { |lines| assert_includes lines[1], '==1==' }
+  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 }
@@ -2473,12 +2662,35 @@ class TestGoFZF < TestBase
     end
   end
 
+  def test_focus_event
+    tmux.send_keys 'seq 100 | fzf --bind "focus:transform-prompt(echo [[{}]]),?:unbind(focus)"', :Enter
+    tmux.until { |lines| assert_includes(lines[-1], '[[1]]') }
+    tmux.send_keys :Up
+    tmux.until { |lines| assert_includes(lines[-1], '[[2]]') }
+    tmux.send_keys :X
+    tmux.until { |lines| assert_includes(lines[-1], '[[]]') }
+    tmux.send_keys '?'
+    tmux.send_keys :BSpace
+    tmux.until { |lines| assert_equal 100, lines.match_count }
+    tmux.until { |lines| refute_includes(lines[-1], '[[1]]') }
+  end
+
   def test_labels_center
-    tmux.send_keys ': | fzf --border --border-label foobar --preview : --preview-label barfoo', :Enter
+    tmux.send_keys 'echo x | fzf --border --border-label foobar --preview : --preview-label barfoo --bind "space:change-border-label(foobarfoo)+change-preview-label(barfoobar),enter:transform-border-label(echo foo{}foo)+transform-preview-label(echo bar{}bar)"', :Enter
     tmux.until do
       assert_includes(_1[0], '─foobar─')
       assert_includes(_1[1], '─barfoo─')
     end
+    tmux.send_keys :space
+    tmux.until do
+      assert_includes(_1[0], '─foobarfoo─')
+      assert_includes(_1[1], '─barfoobar─')
+    end
+    tmux.send_keys :Enter
+    tmux.until do
+      assert_includes(_1[0], '─fooxfoo─')
+      assert_includes(_1[1], '─barxbar─')
+    end
   end
 
   def test_labels_left
@@ -2530,6 +2742,16 @@ class TestGoFZF < TestBase
     tmux.until { assert(_1[-2] == '  1/100') }
   end
 
+  def test_info_right
+    tmux.send_keys "#{FZF} --info=right --separator x --bind 'start:reload:seq 100; sleep 10'", :Enter
+    tmux.until { assert_match(%r{xxx [⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏] 100/100}, _1[-2]) }
+  end
+
+  def test_info_inline_right
+    tmux.send_keys "#{FZF} --info=inline-right --bind 'start:reload:seq 100; sleep 10'", :Enter
+    tmux.until { assert_match(%r{[⠋⠙⠹⠸⠼⠴⠦⠧⠇⠏] 100/100}, _1[-1]) }
+  end
+
   def test_prev_next_selected
     tmux.send_keys 'seq 10 | fzf --multi --bind ctrl-n:next-selected,ctrl-p:prev-selected', :Enter
     tmux.until { |lines| assert_equal 10, lines.item_count }
@@ -2550,11 +2772,49 @@ class TestGoFZF < TestBase
   end
 
   def test_listen
-    tmux.send_keys 'seq 10 | fzf --listen 6266', :Enter
+    { '--listen 6266' => -> { URI('http://localhost:6266') },
+      "--listen --sync --bind 'start:execute-silent:echo $FZF_PORT > /tmp/fzf-port'" =>
+        -> { URI("http://localhost:#{File.read('/tmp/fzf-port').chomp}") } }.each do |opts, fn|
+      tmux.send_keys "seq 10 | fzf #{opts}", :Enter
       tmux.until { |lines| assert_equal 10, lines.item_count }
-    Net::HTTP.post(URI('http://localhost:6266'), 'change-query(yo)+reload(seq 100)+change-prompt:hundred> ')
+      state = JSON.parse(Net::HTTP.get(fn.call), symbolize_names: true)
+      assert_equal 10, state[:totalCount]
+      assert_equal 10, state[:matchCount]
+      assert_empty state[:query]
+      assert_equal({ index: 0, text: '1' }, state[:current])
+
+      Net::HTTP.post(fn.call, 'change-query(yo)+reload(seq 100)+change-prompt:hundred> ')
       tmux.until { |lines| assert_equal 100, lines.item_count }
       tmux.until { |lines| assert_equal 'hundred> yo', lines[-1] }
+      state = JSON.parse(Net::HTTP.get(fn.call), symbolize_names: true)
+      assert_equal 100, state[:totalCount]
+      assert_equal 0, state[:matchCount]
+      assert_equal 'yo', state[:query]
+      assert_nil state[:current]
+
+      teardown
+      setup
+    end
+  end
+
+  def test_listen_with_api_key
+    post_uri = URI('http://localhost:6266')
+    tmux.send_keys 'seq 10 | FZF_API_KEY=123abc fzf --listen 6266', :Enter
+    tmux.until { |lines| assert_equal 10, lines.item_count }
+    # Incorrect API Key
+    [nil, { 'x-api-key' => '' }, { 'x-api-key' => '124abc' }].each do |headers|
+      res = Net::HTTP.post(post_uri, 'change-query(yo)+reload(seq 100)+change-prompt:hundred> ', headers)
+      assert_equal '401', res.code
+      assert_equal 'Unauthorized', res.message
+      assert_equal "invalid api key\n", res.body
+    end
+    # Valid API Key
+    [{ 'x-api-key' => '123abc' }, { 'X-API-Key' => '123abc' }].each do |headers|
+      res = Net::HTTP.post(post_uri, 'change-query(yo)+reload(seq 100)+change-prompt:hundred> ', headers)
+      assert_equal '200', res.code
+      tmux.until { |lines| assert_equal 100, lines.item_count }
+      tmux.until { |lines| assert_equal 'hundred> yo', lines[-1] }
+    end
   end
 
   def test_toggle_alternative_preview_window
@@ -2564,6 +2824,202 @@ class TestGoFZF < TestBase
     tmux.send_keys :Space
     tmux.until { |lines| assert_includes lines, '/1/1/' }
   end
+
+  def test_become
+    tmux.send_keys "seq 100 | #{FZF} --bind 'enter:become:seq {} | #{FZF}'", :Enter
+    tmux.until { |lines| assert_equal 100, lines.item_count }
+    tmux.send_keys 999
+    tmux.until { |lines| assert_equal 0, lines.match_count }
+    tmux.send_keys :Enter
+    tmux.until { |lines| assert_equal 0, lines.match_count }
+    tmux.send_keys :BSpace
+    tmux.until { |lines| assert_equal 1, lines.match_count }
+    tmux.send_keys :Enter
+    tmux.until { |lines| assert_equal 99, lines.item_count }
+  end
+
+  def test_no_extra_newline_issue_3209
+    tmux.send_keys(%(seq 100 | #{FZF} --height 10 --preview-window up,wrap --preview 'printf "─%.0s" $(seq 1 "$((FZF_PREVIEW_COLUMNS - 5))"); printf $"\\e[7m%s\\e[0m" title; echo; echo something'), :Enter)
+    expected = <<~OUTPUT
+      ╭──────────
+      │ ─────────
+      │ something
+      │
+      ╰──────────
+        3
+        2
+      > 1
+        100/100 ─
+      >
+    OUTPUT
+    tmux.until { assert_block(expected, _1) }
+  end
+
+  def test_track
+    tmux.send_keys "seq 1000 | #{FZF} --query 555 --track --bind t:toggle-track", :Enter
+    tmux.until do |lines|
+      assert_equal 1, lines.match_count
+      assert_includes lines, '> 555'
+    end
+    tmux.send_keys :BSpace
+    index = tmux.until do |lines|
+      assert_equal 28, lines.match_count
+      assert_includes lines, '> 555'
+    end.index('> 555')
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 271, lines.match_count
+      assert_equal '> 555', lines[index]
+    end
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_equal '> 555', lines[index]
+    end
+    tmux.send_keys '555'
+    tmux.until do |lines|
+      assert_equal 1, lines.match_count
+      assert_includes lines, '> 555'
+      assert_includes lines[-2], '+T'
+    end
+    tmux.send_keys 't'
+    tmux.until do |lines|
+      refute_includes lines[-2], '+T'
+    end
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 28, lines.match_count
+      assert_includes lines, '> 55'
+    end
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 271, lines.match_count
+      assert_includes lines, '> 5'
+    end
+    tmux.send_keys 't'
+    tmux.until do |lines|
+      assert_includes lines[-2], '+T'
+    end
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 1000, lines.match_count
+      assert_includes lines, '> 5'
+    end
+  end
+
+  def test_track_action
+    tmux.send_keys "seq 1000 | #{FZF} --query 555 --bind t:track", :Enter
+    tmux.until do |lines|
+      assert_equal 1, lines.match_count
+      assert_includes lines, '> 555'
+    end
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 28, lines.match_count
+      assert_includes lines, '> 55'
+    end
+    tmux.send_keys :t
+    tmux.until do |lines|
+      assert_includes lines[-2], '+T'
+    end
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 271, lines.match_count
+      assert_includes lines, '> 55'
+    end
+
+    # Automatically disabled when the tracking item is no longer visible
+    tmux.send_keys '4'
+    tmux.until do |lines|
+      assert_equal 28, lines.match_count
+      refute_includes lines[-2], '+T'
+    end
+    tmux.send_keys :BSpace
+    tmux.until do |lines|
+      assert_equal 271, lines.match_count
+      assert_includes lines, '> 5'
+    end
+    tmux.send_keys :t
+    tmux.until do |lines|
+      assert_includes lines[-2], '+T'
+    end
+    tmux.send_keys :Up
+    tmux.until do |lines|
+      refute_includes lines[-2], '+T'
+    end
+  end
+
+  def test_one_and_zero
+    tmux.send_keys "seq 10 | #{FZF} --bind 'zero:preview(echo no match),one:preview(echo {} is the only match)'", :Enter
+    tmux.send_keys '1'
+    tmux.until do |lines|
+      assert_equal 2, lines.match_count
+      refute(lines.any? { _1.include?('only match') })
+      refute(lines.any? { _1.include?('no match') })
+    end
+    tmux.send_keys '0'
+    tmux.until do |lines|
+      assert_equal 1, lines.match_count
+      assert(lines.any? { _1.include?('only match') })
+    end
+    tmux.send_keys '0'
+    tmux.until do |lines|
+      assert_equal 0, lines.match_count
+      assert(lines.any? { _1.include?('no match') })
+    end
+  end
+
+  def test_height_range_with_exit_0
+    tmux.send_keys "seq 10 | #{FZF} --height ~10% --exit-0", :Enter
+    tmux.until { |lines| assert_equal 10, lines.item_count }
+    tmux.send_keys :c
+    tmux.until { |lines| assert_equal 0, lines.match_count }
+  end
+
+  def test_reload_and_change
+    tmux.send_keys "(echo foo; echo bar) | #{FZF} --bind 'load:reload-sync(sleep 60)+change-query(bar)'", :Enter
+    tmux.until { |lines| assert_equal 1, lines.match_count }
+  end
+
+  def test_reload_and_change_cache
+    tmux.send_keys "echo bar | #{FZF} --bind 'zero:change-header(foo)+reload(echo foo)+clear-query'", :Enter
+    expected = <<~OUTPUT
+      > bar
+        1/1
+      >
+    OUTPUT
+    tmux.until { assert_block(expected, _1) }
+    tmux.send_keys :z
+    expected = <<~OUTPUT
+      > foo
+        foo
+        1/1
+      >
+    OUTPUT
+    tmux.until { assert_block(expected, _1) }
+  end
+
+  def test_delete_with_modifiers
+    tmux.send_keys "seq 100 | #{FZF} --bind 'ctrl-delete:up+up,shift-delete:down,focus:transform-prompt:echo [{}]'", :Enter
+    tmux.until { |lines| assert_equal 100, lines.item_count }
+    tmux.send_keys 'C-Delete'
+    tmux.until { |lines| assert_equal '[3]', lines[-1] }
+    tmux.send_keys 'S-Delete'
+    tmux.until { |lines| assert_equal '[2]', lines[-1] }
+  end
+
+  def test_become_tty
+    tmux.send_keys "sleep 0.5 | #{FZF} --bind 'start:reload:ls' --bind 'load:become:tty'", :Enter
+    tmux.until { |lines| assert_includes lines, '/dev/tty' }
+  end
+
+  def test_disabled_preview_update
+    tmux.send_keys "echo bar | #{FZF} --disabled --bind 'change:reload:echo foo' --preview 'echo [{q}-{}]'", :Enter
+    tmux.until { |lines| assert_equal 1, lines.match_count }
+    tmux.until { |lines| assert(lines.any? { |line| line.include?('[-bar]') }) }
+    tmux.send_keys :x
+    tmux.until { |lines| assert(lines.any? { |line| line.include?('[x-foo]') }) }
+  end
 end
 
 module TestShell
@@ -2692,9 +3148,9 @@ module TestShell
     tmux.send_keys 'C-r'
     tmux.until { |lines| assert_equal '>', lines[-1] }
     tmux.send_keys 'foo bar'
-    tmux.until { |lines| assert lines[-3]&.end_with?('bar"') }
+    tmux.until { |lines| assert lines[-3]&.match?(/bar"␊?/) }
     tmux.send_keys :Enter
-    tmux.until { |lines| assert lines[-1]&.end_with?('bar"') }
+    tmux.until { |lines| assert lines[-1]&.match?(/bar"␊?/) }
     tmux.send_keys :Enter
     tmux.until { |lines| assert_equal %w[foo bar], lines[-2..] }
   end
@@ -2909,6 +3365,34 @@ module CompletionTest
     tmux.prepare
     tmux.send_keys 'unset -f _fzf_comprun', :Enter
   end
+
+  def test_ssh_completion
+    (1..5).each { |i| FileUtils.touch("/tmp/fzf-test-ssh-#{i}") }
+
+    tmux.send_keys 'ssh jg@localhost**', :Tab
+    tmux.until do |lines|
+      assert lines.match_count >= 1
+    end
+
+    tmux.send_keys :Enter
+    tmux.until { |lines| assert lines.any_include?('ssh jg@localhost') }
+    tmux.send_keys ' -i /tmp/fzf-test-ssh**', :Tab
+    tmux.until do |lines|
+      assert lines.match_count >= 5
+      assert_equal 0, lines.select_count
+    end
+    tmux.send_keys :Tab, :Tab, :Tab
+    tmux.until do |lines|
+      assert_equal 3, lines.select_count
+    end
+    tmux.send_keys :Enter
+    tmux.until { |lines| assert lines.any_include?('ssh jg@localhost  -i /tmp/fzf-test-ssh-') }
+
+    tmux.send_keys 'localhost**', :Tab
+    tmux.until do |lines|
+      assert lines.match_count >= 1
+    end
+  end
 end
 
 class TestBash < TestBase

typos.toml

@@ -0,0 +1,9 @@
+# See https://github.com/crate-ci/typos/blob/master/docs/reference.md to configure typos
+[default.extend-words]
+ba = "ba"
+fo = "fo"
+enew = "enew"
+tabe = "tabe"
+
+[files]
+extend-exclude = ["README.md"]