home/rc/filetype/gluon.kak
2020-07-29 21:07:43 -06:00

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# http://gluon-lang.org
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
# Detection
# ‾‾‾‾‾‾‾‾‾
hook global BufCreate .*[.](glu) %{
set-option buffer filetype gluon
}
# Initialization
# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
hook global WinSetOption filetype=gluon %{
require-module gluon
set-option window extra_word_chars '_' "'"
hook window ModeChange insert:.* -group gluon-trim-indent gluon-trim-indent
hook window InsertChar \n -group gluon-indent gluon-indent-on-new-line
hook -once -always window WinSetOption filetype=.* %{
remove-hooks window gluon-.+
}
}
hook -group gluon-highlight global WinSetOption filetype=gluon %{
add-highlighter window/gluon ref gluon
hook -once -always window WinSetOption filetype=.* %{
remove-highlighter window/gluon
}
}
provide-module gluon %§
# Highlighters
# ‾‾‾‾‾‾‾‾‾‾‾‾
add-highlighter shared/gluon regions
add-highlighter shared/gluon/code default-region group
add-highlighter shared/gluon/string region (?<!')" (?<!\\)(\\\\)*" fill string
add-highlighter shared/gluon/raw_string region -match-capture \br(#+)" \"(#+) fill string
add-highlighter shared/gluon/comment region /\* \*/ fill comment
add-highlighter shared/gluon/line_comment region // $ fill comment
add-highlighter shared/gluon/attribute region -recurse \[ '#\[' \] fill meta
# balance out bracket ]
# matches hexadecimal literals
add-highlighter shared/gluon/code/ regex \b0x+[A-Fa-f0-9]+ 0:value
# matches decimal and floating-point literals
add-highlighter shared/gluon/code/ regex \b\d+([.]\d+)? 0:value
# matches keywords
add-highlighter shared/gluon/code/ regex \
(?<!')\b(type|if|then|else|match|with|let|rec|do|seq|in)\b(?!') 0:keyword
# matches macros
add-highlighter shared/gluon/code/ regex \b\w+! 0:meta
# matches uppercase identifiers: Monad Some
add-highlighter shared/gluon/code/ regex \b[A-Z][\w']* 0:variable
# matches operators: ... > < <= ^ <*> <$> etc
# matches dot: .
# matches keywords: @ : ->
add-highlighter shared/gluon/code/ regex (?<![~<=>|:!?/.@$*&#%+\^\-\\])[~<=>|:!?/.@$*&#%+\^\-\\]+ 0:operator
# matches 'x' '\\' '\'' '\n' '\0'
# not incomplete literals: '\'
add-highlighter shared/gluon/code/ regex \B'([^\\]|[\\]['"\w\d\\])' 0:string
# this has to come after operators so '-' etc is correct
# Commands
# ‾‾‾‾‾‾‾‾
define-command -hidden gluon-trim-indent %{
# remove trailing white spaces
try %{ execute-keys -draft -itersel <a-x> s \h+$ <ret> d }
}
define-command -hidden gluon-indent-on-new-line %<
evaluate-commands -draft -itersel %<
# copy // and /// comments prefix and following white spaces
try %{ execute-keys -draft k <a-x> s ^\h*\K///?\h* <ret> y gh j P }
# preserve previous line indent
try %{ execute-keys -draft \; K <a-&> }
# filter previous line
try %{ execute-keys -draft k : gluon-trim-indent <ret> }
# indent after lines ending with (open) braces, =, ->, condition, rec,
# or in
try %{ execute-keys -draft \; k x <a-k> (\(|\{|\[|=|->|then|else|rec|in)$ <ret> j <a-gt> }
# deindent closing brace(s) when after cursor
try %{ execute-keys -draft <a-x> <a-k> ^\h*[})\]] <ret> gh / [})\]] <ret> m <a-S> 1<a-&> }
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