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Update ADVANCED.md: transform-query to restore the query string

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Junegunn Choi 2023-02-12 17:23:17 +09:00
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@ -1,7 +1,7 @@
Advanced fzf examples Advanced fzf examples
====================== ======================
*(Last update: 2022/08/25)* *(Last update: 2023/02/12)*
<!-- vim-markdown-toc GFM --> <!-- vim-markdown-toc GFM -->
@ -408,10 +408,10 @@ IFS=: read -ra selected < <(
### Switching between Ripgrep mode and fzf mode ### Switching between Ripgrep mode and fzf mode
*(Requires fzf 0.30.0 or above)* *(Requires fzf 0.36.0 or above)*
fzf 0.30.0 added `rebind` action so we can "rebind" the bindings that were [fzf 0.30.0][0.30.0] added `rebind` action so we can "rebind" the bindings
previously "unbound" via `unbind`. that were previously "unbound" via `unbind`.
This is an improved version of the previous example that allows us to switch 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 between Ripgrep launcher mode and fzf-only filtering mode via CTRL-R and
@ -421,6 +421,7 @@ CTRL-F.
#!/usr/bin/env bash #!/usr/bin/env bash
# Switch between Ripgrep launcher mode (CTRL-R) and fzf filtering mode (CTRL-F) # 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 " RG_PREFIX="rg --column --line-number --no-heading --color=always --smart-case "
INITIAL_QUERY="${*:-}" INITIAL_QUERY="${*:-}"
IFS=: read -ra selected < <( IFS=: read -ra selected < <(
@ -429,17 +430,27 @@ IFS=: read -ra selected < <(
--color "hl:-1:underline,hl+:-1:underline:reverse" \ --color "hl:-1:underline,hl+:-1:underline:reverse" \
--disabled --query "$INITIAL_QUERY" \ --disabled --query "$INITIAL_QUERY" \
--bind "change:reload:sleep 0.1; $RG_PREFIX {q} || true" \ --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($RG_PREFIX {q} || true)+rebind(change,ctrl-f)+transform-query(echo {q} > /tmp/rg-fzf-f; cat /tmp/rg-fzf-r)" \
--prompt '1. Ripgrep> ' \ --bind "start:unbind(ctrl-r)" \
--prompt '1. ripgrep> ' \
--delimiter : \ --delimiter : \
--header '╱ CTRL-R (Ripgrep mode) ╱ CTRL-F (fzf mode) ╱' \ --header '╱ CTRL-R (ripgrep mode) ╱ CTRL-F (fzf mode) ╱' \
--preview 'bat --color=always {1} --highlight-line {2}' \ --preview 'bat --color=always {1} --highlight-line {2}' \
--preview-window 'up,60%,border-bottom,+{2}+3/3,~3' --preview-window 'up,60%,border-bottom,+{2}+3/3,~3'
) )
[ -n "${selected[0]}" ] && vim "${selected[0]}" "+${selected[1]}" [ -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
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