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kakoune/rc/filetype/fish.kak
Johannes Altmanninger faba50d528 rc fish: fix keyword highlighting false positive
"command" is a built-in, but these are not:

	$command
	some-command
	command-some
2021-08-09 22:45:52 +02:00

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# http://fishshell.com
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](fish) %{
set-option buffer filetype fish
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=fish %{
require-module fish
hook window InsertChar .* -group fish-indent fish-indent-on-char
hook window InsertChar \n -group fish-insert fish-insert-on-new-line
hook window InsertChar \n -group fish-indent fish-indent-on-new-line
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window fish-.+ }
}
hook -group fish-highlight global WinSetOption filetype=fish %{
add-highlighter window/fish ref fish
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/fish }
}
provide-module fish %{
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/fish regions
add-highlighter shared/fish/code default-region group
add-highlighter shared/fish/double_string region (?<!\\)(?:\\\\)*\K" (?<!\\)(\\\\)*" group
add-highlighter shared/fish/single_string region (?<!\\)(?:\\\\)*\K' (?<!\\)(\\\\)*' fill string
add-highlighter shared/fish/comment region (?<!\\)(?:\\\\)*(?:^|\h)\K# '$' fill comment
add-highlighter shared/fish/double_string/ fill string
add-highlighter shared/fish/double_string/ regex ((?<!\\)(?:\\\\)*\K\$\w+)|(\{\$\w+\}) 0:variable
add-highlighter shared/fish/code/ regex (?<!\\)(?:\\\\)*\K(\$\w+)|(\{\$\w+\}) 0:variable
# Command names are collected using `builtin --names`.
add-highlighter shared/fish/code/ regex \b(?<![$-])(and|argparse|begin|bg|bind|block|break|breakpoint|builtin|case|cd|command|commandline|complete|contains|continue|count|disown|echo|else|emit|end|eval|exec|exit|false|fg|for|function|functions|history|if|jobs|math|not|or|printf|pwd|random|read|realpath|return|set|set_color|source|status|string|switch|test|time|true|ulimit|wait|while)\b(?!-) 0:keyword
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden fish-trim-indent %{
evaluate-commands -no-hooks -draft -itersel %{
# remove trailing white spaces
try %{ execute-keys -draft <a-x> 1s^(\h+)$<ret> d }
}
}
define-command -hidden fish-indent-on-char %{
evaluate-commands -no-hooks -draft -itersel %{
# align middle and end structures to start and indent when necessary
try %{ execute-keys -draft <a-x><a-k>^\h*(else)$<ret><a-semicolon><a-?>^\h*(if)<ret>s\A|.\z<ret>1<a-&> }
try %{ execute-keys -draft <a-x><a-k>^\h*(end)$<ret><a-semicolon><a-?>^\h*(begin|for|function|if|switch|while)<ret>s\A|.\z<ret>1<a-&> }
try %{ execute-keys -draft <a-x><a-k>^\h*(case)$<ret><a-semicolon><a-?>^\h*(switch)<ret>s\A|.\z<ret>1<a-&> }
}
}
define-command -hidden fish-insert-on-new-line %{
evaluate-commands -no-hooks -draft -itersel %{
# copy '#' comment prefix and following white spaces
try %{ execute-keys -draft k <a-x> s ^\h*#\h* <ret> y jgh P }
}
}
define-command -hidden fish-indent-on-new-line %{
evaluate-commands -no-hooks -draft -itersel %{
# preserve previous line indent
try %{ execute-keys -draft <semicolon> K <a-&> }
# cleanup trailing whitespaces from previous line
try %{ execute-keys -draft k <a-x> s \h+$ <ret> d }
# indent after start structure
try %{ execute-keys -draft k<a-x><a-k>^\h*(begin|case|else|for|function|if|while)\b<ret>j<a-gt> }
}
}
}