116 lines
6.0 KiB
Plaintext
116 lines
6.0 KiB
Plaintext
# http://rust-lang.org
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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# Detection
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# ‾‾‾‾‾‾‾‾‾
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hook global BufCreate .*[.](rust|rs) %{
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set-option buffer filetype rust
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}
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook global WinSetOption filetype=rust %[
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require-module rust
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hook window ModeChange pop:insert:.* -group rust-trim-indent rust-trim-indent
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hook window InsertChar \n -group rust-indent rust-indent-on-new-line
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hook window InsertChar \{ -group rust-indent rust-indent-on-opening-curly-brace
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hook window InsertChar [)}] -group rust-indent rust-indent-on-closing
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hook -once -always window WinSetOption filetype=.* %{ remove-hooks window rust-.+ }
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]
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hook -group rust-highlight global WinSetOption filetype=rust %{
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add-highlighter window/rust ref rust
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hook -once -always window WinSetOption filetype=.* %{ remove-highlighter window/rust }
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}
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provide-module rust %§
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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add-highlighter shared/rust regions
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add-highlighter shared/rust/code default-region group
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add-highlighter shared/rust/string region %{(?<!')"} (?<!\\)(\\\\)*" fill string
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add-highlighter shared/rust/raw_string region -match-capture %{(?<!')r(#*)"} %{"(#*)} fill string
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add-highlighter shared/rust/comment region -recurse "/\*" "/\*" "\*/" fill comment
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add-highlighter shared/rust/documentation region "//[!/]" "$" fill documentation
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add-highlighter shared/rust/line_comment region "//" "$" fill comment
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add-highlighter shared/rust/macro_attributes region -recurse "\[" "#!?\[" "\]" regions
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add-highlighter shared/rust/macro_attributes/ default-region fill meta
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add-highlighter shared/rust/macro_attributes/string region %{(?<!')"} (?<!\\)(\\\\)*" fill string
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add-highlighter shared/rust/macro_attributes/raw_string region -match-capture %{(?<!')r(#*)"} %{"(#*)} fill string
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add-highlighter shared/rust/code/byte_literal regex "'\\\\?.'" 0:value
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add-highlighter shared/rust/code/long_quoted regex "('\w+)[^']" 1:meta
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add-highlighter shared/rust/code/field_or_parameter regex (_?\w+)(?::)(?!:) 1:variable
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add-highlighter shared/rust/code/namespace regex [a-zA-Z](\w+)?(\h+)?(?=::) 0:module
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add-highlighter shared/rust/code/field regex ((?<!\.\.)(?<=\.))_?[a-zA-Z]\w*\b 0:meta
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add-highlighter shared/rust/code/function_call regex _?[a-zA-Z]\w*\s*(?=\() 0:function
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add-highlighter shared/rust/code/user_defined_type regex \b[A-Z]\w*\b 0:type
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add-highlighter shared/rust/code/function_declaration regex (?:fn\h+)(_?\w+)(?:<[^>]+?>)?\( 1:function
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add-highlighter shared/rust/code/variable_declaration regex (?:let\h+(?:mut\h+)?)(_?\w+) 1:variable
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add-highlighter shared/rust/code/macro regex \b[A-z0-9_]+! 0:meta
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# the number literals syntax is defined here:
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# https://doc.rust-lang.org/reference.html#number-literals
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add-highlighter shared/rust/code/values regex \b(?:self|true|false|[0-9][_0-9]*(?:\.[0-9][_0-9]*|(?:\.[0-9][_0-9]*)?E[\+\-][_0-9]+)(?:f(?:32|64))?|(?:0x[_0-9a-fA-F]+|0o[_0-7]+|0b[_01]+|[0-9][_0-9]*)(?:(?:i|u|f)(?:8|16|32|64|128|size))?)\b 0:value
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add-highlighter shared/rust/code/attributes regex \b(?:trait|struct|enum|type|mut|ref|static|const)\b 0:attribute
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# the language keywords are defined here, but many of them are reserved and unused yet:
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# https://doc.rust-lang.org/grammar.html#keywords
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add-highlighter shared/rust/code/keywords regex \b(?:let|as|fn|return|match|if|else|loop|for|in|while|break|continue|move|box|where|impl|dyn|pub|unsafe|async|await|mod|crate|use|extern)\b 0:keyword
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add-highlighter shared/rust/code/builtin_types regex \b(?:u8|u16|u32|u64|u128|usize|i8|i16|i32|i64|i128|isize|f32|f64|bool|char|str|Self)\b 0:type
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add-highlighter shared/rust/code/return regex \breturn\b 0:meta
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# Commands
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# ‾‾‾‾‾‾‾‾
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define-command -hidden rust-trim-indent %{
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# remove trailing white spaces
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try %{ execute-keys -draft -itersel <a-x> s \h+$ <ret> d }
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}
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define-command -hidden rust-indent-on-new-line %~
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evaluate-commands -draft -itersel %<
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# copy // comments prefix and following white spaces
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try %{
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execute-keys -draft k <a-x> s ^\h*//[!/]{0,2}\h* <ret> y gh j P
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} catch %`
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# preserve previous line indent
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try %{ execute-keys -draft <semicolon> K <a-&> }
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# indent after lines ending with { or (
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try %[ execute-keys -draft k <a-x> <a-k> [{(]\h*$ <ret> j <a-gt> ]
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# indent after lines ending with [{(].+ and move first parameter to own line
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try %< execute-keys -draft [c[({],[)}] <ret> <a-k> \A[({][^\n]+\n[^\n]*\n?\z <ret> L i<ret><esc> <gt> <a-S> <a-&> >
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# indent lines with a standalone where
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try %+ execute-keys -draft k <a-x> <a-k> ^\h*where\h*$ <ret> j <a-gt> +
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# dedent after lines starting with . and ending with , or ;
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try %_ execute-keys -draft k <a-x> <a-k> ^\h*\..*[,<semicolon>]\h*$ <ret> j <a-lt> _
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# todo dedent additional unmatched parenthesis
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# try %& execute-keys -draft k <a-x> s \((?:[^)(]+|\((?:[^)(]+|\([^)(]*\))*\))*\) l Gl s\) %sh{
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# count previous selections length
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# printf "j $(echo $kak_selections_length | wc -w) <a-lt>"
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# } &
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`
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# filter previous line
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try %{ execute-keys -draft k : rust-trim-indent <ret> }
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>
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~
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define-command -hidden rust-indent-on-opening-curly-brace %[
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evaluate-commands -draft -itersel %_
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# align indent with opening paren when { is entered on a new line after the closing paren
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try %[ execute-keys -draft h <a-F> ) M <a-k> \A\(.*\)\h*\n\h*\{\z <ret> s \A|.\z <ret> 1<a-&> ]
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_
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]
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define-command -hidden rust-indent-on-closing %[
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evaluate-commands -draft -itersel %_
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# align to opening curly brace or paren when alone on a line
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try %< execute-keys -draft <a-h> <a-k> ^\h*[)}]$ <ret> h m <a-S> 1<a-&> >
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_
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]
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§
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