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94 lines
3.6 KiB
Plaintext
94 lines
3.6 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 BufSetOption mimetype=text/x-rust %{
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set buffer filetype rust
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}
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hook global BufCreate .*[.](rust|rs) %{
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set buffer filetype rust
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set buffer mimetype ''
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}
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# Highlighters
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# ‾‾‾‾‾‾‾‾‾‾‾‾
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addhl -group / regions -default code rust \
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string '"' (?<!\\)(\\\\)*" '' \
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comment // $ '' \
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comment /\* \*/ /\*
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addhl -group /rust/string fill string
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addhl -group /rust/comment fill comment
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addhl -group /rust/code 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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addhl -group /rust/code 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)(?:8|16|32|64|size))?)\b 0:value
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addhl -group /rust/code regex \b(?:&&|\|\|)\b 0:operator
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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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addhl -group /rust/code regex \b(?:crate|use|extern)\b 0:meta
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addhl -group /rust/code regex \b(?:let|as|fn|return|match|if|else|loop|for|in|while|break|continue|move|box|where|impl|pub|unsafe)\b 0:keyword
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addhl -group /rust/code regex \b(?:mod|trait|struct|enum|type|mut|ref|static|const)\b 0:attribute
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addhl -group /rust/code regex \b(?:u8|u16|u32|u64|usize|i8|i16|i32|i64|isize|f32|f64|bool|char|str|Self)\b 0:type
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# Commands
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# ‾‾‾‾‾‾‾‾
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def -hidden _rust_filter_around_selections %{
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# remove trailing white spaces
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try %{ exec -draft -itersel <a-x> s \h+$ <ret> d }
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}
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def -hidden _rust_indent_on_new_line %~
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eval -draft -itersel %<
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# preserve previous line indent
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try %{ exec -draft <space> K <a-&> }
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# filter previous line
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try %{ exec -draft k : _rust_filter_around_selections <ret> }
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# copy // comments prefix and following white spaces
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try %{ exec -draft k x s ^\h*\K//\h* <ret> y j p }
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# indent after lines ending with { or (
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try %[ exec -draft k <a-x> <a-k> [{(]\h*$ <ret> j <a-gt> ]
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# align to opening paren of previous line
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try %{ exec -draft [( <a-k> \`\([^\n]+\n[^\n]*\n?\' <ret> s \`\(\h*.|.\' <ret> & }
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>
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~
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def -hidden _rust_indent_on_opening_curly_brace %[
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eval -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 %[ exec -draft h <a-F> ) M <a-k> \`\(.*\)\h*\n\h*\{\' <ret> s \`|.\' <ret> 1<a-&> ]
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_
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]
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def -hidden _rust_indent_on_closing_curly_brace %[
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eval -draft -itersel %_
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# align to opening curly brace when alone on a line
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try %[ exec -draft <a-h> <a-k> ^\h+\}$ <ret> h m s \`|.\' <ret> 1<a-&> ]
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_
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]
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# Initialization
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# ‾‾‾‾‾‾‾‾‾‾‾‾‾‾
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hook -group rust-highlight global WinSetOption filetype=rust %{ addhl ref rust }
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hook global WinSetOption filetype=rust %[
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hook window InsertEnd .* -group rust-hooks _rust_filter_around_selections
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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_curly_brace
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]
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hool -group rust-highlight global WinSetOption filetype=(?!rust).* %{ rmhl rust }
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hook global WinSetOption filetype=(?!rust).* %{
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rmhooks window rust-indent
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rmhooks window rust-hooks
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}
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