docs(ADVANCED.md): replace placeholder with env variable for toggle single key binding (#3593)

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LangLangBart 2024-01-22 05:17:03 +01:00 committed by GitHub
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@ -222,17 +222,17 @@ To make a key binding behave differently each time it is pressed, we need:
2. and a way to dynamically perform different actions depending on the state.
The following example shows how to 1. store the current mode in the prompt
string, 2. and use this information (`{fzf:prompt}`) to determine which
string, 2. and use this information (`$FZF_PROMPT`) to determine which
actions to perform using the `transform` action.
```sh
fd --type file |
fzf --prompt 'Files> ' \
--header 'CTRL-T: Switch between Files/Directories' \
--bind 'ctrl-t:transform:[[ ! {fzf:prompt} =~ Files ]] &&
--bind 'ctrl-t:transform:[[ ! $FZF_PROMPT =~ Files ]] &&
echo "change-prompt(Files> )+reload(fd --type file)" ||
echo "change-prompt(Directories> )+reload(fd --type directory)"' \
--preview '[[ {fzf:prompt} =~ Files ]] && bat --color=always {} || tree -C {}'
--preview '[[ $FZF_PROMPT =~ Files ]] && bat --color=always {} || tree -C {}'
```
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