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kakoune/rc/filetype/css.kak
2020-07-29 09:35:36 -06:00

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# http://w3.org/Style/CSS
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](css) %{
set-option buffer filetype css
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=css %[
require-module css
hook window ModeChange pop:insert:.* -group css-trim-indent css-trim-indent
hook window InsertChar \n -group css-indent css-indent-on-new-line
hook window InsertChar \} -group css-indent css-indent-on-closing-curly-brace
set-option buffer extra_word_chars '_' '-'
hook -once -always window WinSetOption filetype=.* %{ remove-hooks window css-.+ }
]
hook -group css-highlight global WinSetOption filetype=css %{
add-highlighter window/css ref css
hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/css }
}
provide-module css %[
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/css regions
add-highlighter shared/css/selector default-region group
add-highlighter shared/css/declaration region [{] [}] regions
add-highlighter shared/css/comment region /[*] [*]/ fill comment
add-highlighter shared/css/declaration/base default-region group
add-highlighter shared/css/declaration/double_string region '"' (?<!\\)(\\\\)*" fill string
add-highlighter shared/css/declaration/single_string region "'" "'" fill string
add-highlighter shared/css/declaration/comment region /[*] [*]/ fill comment
# https://developer.mozilla.org/en-US/docs/Web/CSS/length
add-highlighter shared/css/declaration/base/ regex (#[0-9A-Fa-f]+)|((\d*\.)?\d+(ch|cm|em|ex|mm|pc|pt|px|rem|vh|vmax|vmin|vw)) 0:value
add-highlighter shared/css/declaration/base/ regex ([A-Za-z][A-Za-z0-9_-]*)\h*: 1:keyword
add-highlighter shared/css/declaration/base/ regex :(before|after) 0:attribute
add-highlighter shared/css/declaration/base/ regex !important 0:keyword
# element#id element.class
# universal selector
add-highlighter shared/css/selector/ regex [A-Za-z][A-Za-z0-9_-]* 0:keyword
add-highlighter shared/css/selector/ regex [*]|[#.][A-Za-z][A-Za-z0-9_-]* 0:variable
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden css-trim-indent %{
# remove trailing white spaces
try %{ execute-keys -draft -itersel <a-x> s \h+$ <ret> d }
}
define-command -hidden css-indent-on-new-line %[
evaluate-commands -draft -itersel %[
# preserve previous line indent
try %[ execute-keys -draft <semicolon> K <a-&> ]
# filter previous line
try %[ execute-keys -draft k : css-trim-indent <ret> ]
# indent after lines ending with with {
try %[ execute-keys -draft k <a-x> <a-k> \{$ <ret> j <a-gt> ]
# deindent closing brace when after cursor
try %[ execute-keys -draft <a-x> <a-k> ^\h*\} <ret> gh / \} <ret> m <a-S> 1<a-&> ]
]
]
define-command -hidden css-indent-on-closing-curly-brace %[
evaluate-commands -draft -itersel %[
# align to opening curly brace when alone on a line
try %[ execute-keys -draft <a-h> <a-k> ^\h+\}$ <ret> m s \A|.\z <ret> 1<a-&> ]
]
]
]