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@ -1,30 +1,33 @@
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Advanced fzf examples
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======================
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*(Last update: 2023/02/12)*
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* *Last update: 2023/02/15*
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* *Requires fzf 0.38.0 or above*
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---
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<!-- vim-markdown-toc GFM -->
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* [Introduction](#introduction)
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* [Screen Layout](#screen-layout)
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* [`--height`](#--height)
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* [`fzf-tmux`](#fzf-tmux)
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* [Popup window support](#popup-window-support)
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* [`--height`](#--height)
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* [`fzf-tmux`](#fzf-tmux)
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* [Popup window support](#popup-window-support)
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* [Dynamic reloading of the list](#dynamic-reloading-of-the-list)
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* [Updating the list of processes by pressing CTRL-R](#updating-the-list-of-processes-by-pressing-ctrl-r)
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* [Toggling between data sources](#toggling-between-data-sources)
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* [Updating the list of processes by pressing CTRL-R](#updating-the-list-of-processes-by-pressing-ctrl-r)
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* [Toggling between data sources](#toggling-between-data-sources)
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* [Ripgrep integration](#ripgrep-integration)
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* [Using fzf as the secondary filter](#using-fzf-as-the-secondary-filter)
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* [Using fzf as interactive Ripgrep launcher](#using-fzf-as-interactive-ripgrep-launcher)
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* [Switching to fzf-only search mode](#switching-to-fzf-only-search-mode)
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* [Switching between Ripgrep mode and fzf mode](#switching-between-ripgrep-mode-and-fzf-mode)
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* [Using fzf as the secondary filter](#using-fzf-as-the-secondary-filter)
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* [Using fzf as interactive Ripgrep launcher](#using-fzf-as-interactive-ripgrep-launcher)
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* [Switching to fzf-only search mode](#switching-to-fzf-only-search-mode)
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* [Switching between Ripgrep mode and fzf mode](#switching-between-ripgrep-mode-and-fzf-mode)
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* [Log tailing](#log-tailing)
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* [Key bindings for git objects](#key-bindings-for-git-objects)
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* [Files listed in `git status`](#files-listed-in-git-status)
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* [Branches](#branches)
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* [Commit hashes](#commit-hashes)
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* [Files listed in `git status`](#files-listed-in-git-status)
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* [Branches](#branches)
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* [Commit hashes](#commit-hashes)
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* [Color themes](#color-themes)
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* [Generating fzf color theme from Vim color schemes](#generating-fzf-color-theme-from-vim-color-schemes)
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* [Generating fzf color theme from Vim color schemes](#generating-fzf-color-theme-from-vim-color-schemes)
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<!-- vim-markdown-toc -->
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@ -236,15 +239,13 @@ file called `rfv`.
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# 1. Search for text in files using Ripgrep
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# 2. Interactively narrow down the list using fzf
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# 3. Open the file in Vim
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IFS=: read -ra selected < <(
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rg --color=always --line-number --no-heading --smart-case "${*:-}" |
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fzf --ansi \
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--color "hl:-1:underline,hl+:-1:underline:reverse" \
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--delimiter : \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
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)
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[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
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rg --color=always --line-number --no-heading --smart-case "${*:-}" |
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fzf --ansi \
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--color "hl:-1:underline,hl+:-1:underline:reverse" \
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--delimiter : \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
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--bind 'enter:become(vim {1} +{2})'
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```
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And run it with an initial query string.
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@ -307,8 +308,12 @@ I know it's a lot to digest, let's try to break down the code.
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position in the window
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- `~3` makes the top three lines fixed header so that they are always
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visible regardless of the scroll offset
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- Once we selected a line, we open the file with `vim` (`vim
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"${selected[0]}"`) and move the cursor to the line (`+${selected[1]}`).
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- Instead of using shell script to process the final output of fzf, we use
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`become(...)` action which was added in [fzf 0.38.0][0.38.0] to turn fzf
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into a new process that opens the file with `vim` (`vim {1}`) and move the
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cursor to the line (`+{2}`).
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[0.38.0]: https://github.com/junegunn/fzf/blob/master/CHANGELOG.md#0380
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### Using fzf as interactive Ripgrep launcher
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@ -331,16 +336,14 @@ projects, and it will free up memory as you narrow down the results.
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# 3. Open the file in Vim
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RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
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INITIAL_QUERY="${*:-}"
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IFS=: read -ra selected < <(
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FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
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fzf --ansi \
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--disabled --query "$INITIAL_QUERY" \
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--bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
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--delimiter : \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
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)
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[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
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FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
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fzf --ansi \
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--disabled --query "$INITIAL_QUERY" \
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--bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
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--delimiter : \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
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--bind 'enter:become(vim {1} +{2})'
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```
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![image](https://user-images.githubusercontent.com/700826/113684212-f9ff0a00-96ff-11eb-8737-7bb571d320cc.png)
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@ -358,8 +361,6 @@ IFS=: read -ra selected < <(
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### Switching to fzf-only search mode
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*(Requires fzf 0.27.1 or above)*
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In the previous example, we lost fuzzy matching capability as we completely
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delegated search functionality to Ripgrep. But we can dynamically switch to
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fzf-only search mode by *"unbinding"* `reload` action from `change` event.
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@ -375,19 +376,17 @@ fzf-only search mode by *"unbinding"* `reload` action from `change` event.
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# 3. Open the file in Vim
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RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
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INITIAL_QUERY="${*:-}"
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IFS=: read -ra selected < <(
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FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
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fzf --ansi \
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--color "hl:-1:underline,hl+:-1:underline:reverse" \
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--disabled --query "$INITIAL_QUERY" \
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--bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
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--bind "alt-enter:unbind(change,alt-enter)+change-prompt(2. fzf> )+enable-search+clear-query" \
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--prompt '1. ripgrep> ' \
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--delimiter : \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
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)
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[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
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FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
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fzf --ansi \
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--color "hl:-1:underline,hl+:-1:underline:reverse" \
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--disabled --query "$INITIAL_QUERY" \
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--bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
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--bind "alt-enter:unbind(change,alt-enter)+change-prompt(2. fzf> )+enable-search+clear-query" \
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--prompt '1. ripgrep> ' \
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--delimiter : \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
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--bind 'enter:become(vim {1} +{2})'
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```
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* Phase 1. Filtering with Ripgrep
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@ -408,8 +407,6 @@ IFS=: read -ra selected < <(
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### Switching between Ripgrep mode and fzf mode
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*(Requires fzf 0.36.0 or above)*
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[fzf 0.30.0][0.30.0] added `rebind` action so we can "rebind" the bindings
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that were previously "unbound" via `unbind`.
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@ -424,22 +421,20 @@ CTRL-F.
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rm -f /tmp/rg-fzf-{r,f}
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RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
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INITIAL_QUERY="${*:-}"
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IFS=: read -ra selected < <(
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FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
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fzf --ansi \
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--color "hl:-1:underline,hl+:-1:underline:reverse" \
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--disabled --query "$INITIAL_QUERY" \
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--bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
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--bind "ctrl-f:unbind(change,ctrl-f)+change-prompt(2. fzf> )+enable-search+rebind(ctrl-r)+transform-query(echo {q} > /tmp/rg-fzf-r; cat /tmp/rg-fzf-f)" \
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--bind "ctrl-r:unbind(ctrl-r)+change-prompt(1. ripgrep> )+disable-search+reload($RG_PREFIX {q} || true)+rebind(change,ctrl-f)+transform-query(echo {q} > /tmp/rg-fzf-f; cat /tmp/rg-fzf-r)" \
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--bind "start:unbind(ctrl-r)" \
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--prompt '1. ripgrep> ' \
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--delimiter : \
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--header '╱ CTRL-R (ripgrep mode) ╱ CTRL-F (fzf mode) ╱' \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
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)
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[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}"
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FZF_DEFAULT_COMMAND="$RG_PREFIX $(printf %q "$INITIAL_QUERY")" \
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fzf --ansi \
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--color "hl:-1:underline,hl+:-1:underline:reverse" \
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--disabled --query "$INITIAL_QUERY" \
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--bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \
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--bind "ctrl-f:unbind(change,ctrl-f)+change-prompt(2. fzf> )+enable-search+rebind(ctrl-r)+transform-query(echo {q} > /tmp/rg-fzf-r; cat /tmp/rg-fzf-f)" \
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--bind "ctrl-r:unbind(ctrl-r)+change-prompt(1. ripgrep> )+disable-search+reload($RG_PREFIX {q} || true)+rebind(change,ctrl-f)+transform-query(echo {q} > /tmp/rg-fzf-f; cat /tmp/rg-fzf-r)" \
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--bind "start:unbind(ctrl-r)" \
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--prompt '1. ripgrep> ' \
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--delimiter : \
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--header '╱ CTRL-R (ripgrep mode) ╱ CTRL-F (fzf mode) ╱' \
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--preview 'bat --color=always {1} --highlight-line {2}' \
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--preview-window 'up,60%,border-bottom,+{2}+3/3,~3' \
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--bind 'enter:become(vim {1} +{2})'
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```
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- To restore the query string when switching between modes, we store the
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