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210 lines
13 KiB
Plaintext
210 lines
13 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/line_doctest region ^\h*//[!/]\h*```($|should_panic|no_run|ignore|allow_fail|rust|test_harness|compile_fail|E\d{4}|edition201[58]) ^\h*//[!/]\h*```$ regions
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add-highlighter shared/rust/line_doctest/marker region ``` $ group
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add-highlighter shared/rust/line_doctest/marker/fence regex ``` 0:meta
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add-highlighter shared/rust/line_doctest/marker/keywords regex [\d\w] 0:meta # already matched above, just ignore comma
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add-highlighter shared/rust/line_doctest/inner region '^\h*//[!/]( #(?= ))?' '$| ' group
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add-highlighter shared/rust/line_doctest/inner/comment regex //[!/] 0:documentation
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add-highlighter shared/rust/line_doctest/inner/hidden regex '#' 0:meta
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add-highlighter shared/rust/line_doctest/code default-region ref rust
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add-highlighter shared/rust/line_code_rest region ^\h*//[!/]\h*``` ^\h*//[!/]\h*```$ fill documentation # reset invalid doctest
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add-highlighter shared/rust/line_comment2 region //[!/]{2} $ fill comment
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add-highlighter shared/rust/line_doc region //[!/] $ fill documentation
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add-highlighter shared/rust/line_comment1 region // $ group
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add-highlighter shared/rust/line_comment1/comment fill comment
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add-highlighter shared/rust/line_comment1/todo regex (TODO|NOTE|FIXME): 1:meta
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add-highlighter shared/rust/block_comment2 region -recurse /\*\*\* /\*\*\* \*/ fill comment
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add-highlighter shared/rust/block_doc region -recurse /\*\* /\*\* \*/ regions
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add-highlighter shared/rust/block_doc/doctest region ```($|should_panic|no_run|ignore|allow_fail|rust|test_harness|compile_fail|E\d{4}|edition201[58]) ```$ regions
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add-highlighter shared/rust/block_doc/doctest/marker region ``` $ group
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add-highlighter shared/rust/block_doc/doctest/marker/fence regex ``` 0:meta
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add-highlighter shared/rust/block_doc/doctest/marker/keywords regex [\d\w] 0:meta # already matched above, just ignore comma
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add-highlighter shared/rust/block_doc/doctest/inner default-region group
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add-highlighter shared/rust/block_doc/doctest/inner/hidden regex '^\h*\**\h*#' 0:meta
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add-highlighter shared/rust/block_doc/doctest/inner/comment regex ^\h*\* 0:documentation
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add-highlighter shared/rust/block_doc/doctest/inner/code ref rust
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add-highlighter shared/rust/block_doc/code_rest region ``` ``` fill documentation
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add-highlighter shared/rust/block_doc/doc default-region fill documentation
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add-highlighter shared/rust/block_comment1 region -recurse /\* /\* \*/ group
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add-highlighter shared/rust/block_comment1/comment fill comment
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add-highlighter shared/rust/block_comment1/todo regex (TODO|NOTE|FIXME): 1:meta
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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/operators_arithmetic regex (\+|-|/|\*|=|\^|&|\||!|>|<|%)=? 0:operator
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add-highlighter shared/rust/code/operators_as regex \bas\b 0:operator
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add-highlighter shared/rust/code/ref_ref regex (&\h+[&~@*])[^)=\s\t\r\n] 1:type
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add-highlighter shared/rust/code/ref regex ([&~@*])[^)=\s\t\r\n] 1:type
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add-highlighter shared/rust/code/operators_logic regex &&|\|\| 0:operator
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add-highlighter shared/rust/code/lifetime_or_loop_label regex ('([a-zA-Z]\w+|_\w+))\b 1:meta
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add-highlighter shared/rust/code/namespace regex \b[a-zA-Z](\w+)?(\h+)?(?=::) 0:module
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add-highlighter shared/rust/code/mod_path_sep regex :: 0:meta
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add-highlighter shared/rust/code/question_mark regex \? 0:meta
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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/reference/keywords.html
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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/generic_function_call regex _?[a-zA-Z]\w*\s*(?=::<) 0:function
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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/keywords regex \b(?:as|break|continue|crate|else|enum|extern|false|fn|for|if|impl|in|let|loop|match|mod|pub|return|self|Self|struct|super|trait|true|type|union|unsafe|use|where|while|async|await|dyn|abstract|become|box|do|try)\b 0:keyword
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add-highlighter shared/rust/code/storage regex \b(move|mut|ref|static|const)\b 0:type
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add-highlighter shared/rust/code/pub_with_scope regex \b(pub)\h*(\()\h*(crate|super|self|in\h+[\w:]+)\h*(\)) 1:keyword 2:meta 4:meta
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# after let can be an arbitrary pattern match
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add-highlighter shared/rust/code/macro regex \b\w+! 0:meta
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# the number literals syntax is defined here:
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# https://doc.rust-lang.org/reference/tokens.html#numb ers
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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/char_character regex "'([^\\]|\\(.|x[0-9a-fA-F]{2}|u\{[0-9a-fA-F]{1,6}\}))'" 0:green
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# TODO highlight error for unicode or single escape by te character
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add-highlighter shared/rust/code/byte_character regex b'([\x00-\x5B\x5D-\x7F]|\\(.|x[0-9a-fA-F]{2}))' 0:yellow
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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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add-highlighter shared/rust/code/enum regex \b(Option|Result)\b 0:type
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add-highlighter shared/rust/code/enum_variant regex \b(Some|None|Ok|Err)\b 0:value
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add-highlighter shared/rust/code/std_traits regex \b(Copy|Send|Sized|Sync|Drop|Fn|FnMut|FnOnce|Box|ToOwned|Clone|PartialEq|PartialOrd|Eq|Ord|AsRef|AsMut|Into|From|Default|Iterator|Extend|IntoIterator|DoubleEndedIterator|ExactSizeIterator|SliceConcatExt|String|ToString|Vec)\b 0:type
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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 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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try %{
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try %[ # line comment
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evaluate-commands -draft -save-regs '/"' %[
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# copy the commenting prefix
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execute-keys -save-regs '' k x s ^\h*//[!/]{0,2}\h* <ret> y
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try %[
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# if the previous comment isn't empty, create a new one
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execute-keys x<a-K>^\h*//[!/]{0,2}$<ret> jxs^\h*<ret>P
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] catch %[
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# TODO figure out a way to not delete empty comment in current line
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# if there is no space and text in the previous comment, remove it completely
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execute-keys s //.*<ret> d
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]
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]
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] catch %[ # block comment
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# if the previous line isn't within a comment scope, break
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execute-keys -draft kx <a-k>^(\h*/\*|\h+\*(?!/))<ret>
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# find comment opening, validate it was not closed, and check its using star prefixes
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execute-keys -draft <a-?>/\*<ret><a-H> <a-K>\*/<ret> <a-k>\A\h*/\*([^\n]*\n\h*\*)*[^\n]*\n\h*.\z<ret>
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try %[
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# if the previous line is opening the comment, insert star preceeded by space
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execute-keys -draft kx<a-k>^\h*/\*<ret>
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execute-keys -draft i*<space><esc>
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] catch %[
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try %[
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# if the next line is a comment line insert a star
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execute-keys -draft jx<a-k>^\h+\*<ret>
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execute-keys -draft i*<space><esc>
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] catch %[
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try %[
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# if the previous line is an empty comment line, close the comment scope
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execute-keys -draft kx<a-k>^\h+\*\h+$<ret> x1s\*(\h*)<ret>c/<esc>
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] catch %[
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# if the previous line is a non-empty comment line, add a star
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execute-keys -draft i*<space><esc>
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]
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]
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]
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# trim trailing whitespace on the previous line
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try %[ execute-keys -draft s\h+$<ret> d ]
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# align the new star with the previous one
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execute-keys Kx1s^[^*]*(\*)<ret>&
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]
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} catch %`
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# re-indent previous line if it starts with where to match previous block
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# string literal parsing within extern does not handle escape
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try %% execute-keys -draft k x <a-k> ^\h*where\b <ret> hh <a-?> ^\h*\b(impl|((|pub\ |pub\((crate|self|super|in\ (::)?([a-zA-Z][a-zA-Z0-9_]*|_[a-zA-Z0-9_]+)(::[a-zA-Z][a-zA-Z0-9_]*|_[a-zA-Z0-9_]+)*)\)\ )((async\ |const\ )?(unsafe\ )?(extern\ ("[^"]*"\ )?)?fn|struct|enum|union)))\b <ret> <a-S> 1<a-&> %
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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 [{([].+ 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 after non-empty lines not starting with operator and not ending with , or ; or {
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# XXX simplify this into a single <a-k> without s
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try %< execute-keys -draft k x s [^\h].+ <ret> <a-K> \A[-+*/&|^})<gt><lt>#] <ret> <a-K> [,<semicolon>{](\h*/[/*].*|)$ <ret> j <a-gt> >
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# indent after lines ending with {
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try %+ execute-keys -draft k x <a-k> \{$ <ret> j <a-gt> +
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# dedent after lines starting with . and ending with } or ) or , or ; or .await (} or ) or .await maybe with ?)
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try %_ execute-keys -draft k x <a-k> ^\h*\. <ret> <a-k> ([,<semicolon>]|(([})]|\.await)\?*))\h*$ <ret> j <a-lt> _
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# dedent after lines ending with " => {}" - part of empty match
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try %# execute-keys -draft k x <a-k> \ =>\ \{\}\h*$ <ret> j <a-lt> #
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# align to opening curly brace or paren when newline is inserted before a single closing
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try %< execute-keys -draft <a-h> <a-k> ^\h*[)}] <ret> h m <a-S> 1<a-&> >
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# todo dedent additional unmatched parenthesis
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# try %& execute-keys -draft k 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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# dedent standalone { after impl and related block without any { in between
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try %@ execute-keys -draft hh <a-?> ^\h*\b(impl|((|pub\ |pub\((crate|self|super|in\ (::)?([a-zA-Z][a-zA-Z0-9_]*|_[a-zA-Z0-9_]+)(::[a-zA-Z][a-zA-Z0-9_]*|_[a-zA-Z0-9_]+)*)\)\ )((async\ |const\ )?(unsafe\ )?(extern\ ("[^"]*"\ )?)?fn|struct|enum|union))|if|for)\b <ret> <a-K> \{ <ret> <a-semicolon> <semicolon> ll x <a-k> ^\h*\{$ <ret> <a-lt> @
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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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