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https://github.com/vim/vim.git
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64 lines
2.6 KiB
VimL
64 lines
2.6 KiB
VimL
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" Vim syntax file
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" Language: Leex (Erlang Lexical Analyzer Generator)
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" Maintainer: Jon Parise <jon@indelible.org>
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" Last Change: 2025 Nov 30
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" Filenames: *.xrl
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"
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" References:
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" - https://www.erlang.org/doc/apps/parsetools/leex.html
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if exists('b:current_syntax')
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finish
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endif
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syn include @leexErlang syntax/erlang.vim
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unlet! b:current_syntax
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syn match leexComment "%.*$" contains=@Spell display
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syn match leexRegexOperator "[|*+?]" contained display
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syn match leexRegexDelimiter "[()[\]]" contained display
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syn match leexRegexSpecial "[.^$\\]" contained display
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syn match leexRegexEscape '\\\%([bfnrtevsd]\|\o\{1,3}\|x\x\{2}\|x{\x\+}\|.\)' contained display
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syn match leexRegexRange "\[[^\]]*\]" contains=leexRegexDelimiter,leexRegexEscape contained display
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" Macro definitions: NAME = VALUE
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syn match leexMacroName "^\s*\zs\h\w*\ze\s\+=\s\+" contained nextgroup=leexMacroEquals skipwhite display
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syn match leexMacroEquals "=" contained nextgroup=leexMacroValue skipwhite display
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syn match leexMacroValue "\S\+" contained contains=leexRegexOperator,leexRegexDelimiter,leexRegexSpecial,leexRegexEscape,leexRegexRange,leexMacroRef display
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syn match leexMacroRef "{\h\w*}" contained display
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" Rule definitions: <Regexp> : <Erlang code>.
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syn match leexRuleRegex "^\s*\zs[^%].\{-}\ze\s\+:" contained contains=leexRegexOperator,leexRegexDelimiter,leexRegexSpecial,leexRegexEscape,leexRegexRange,leexMacroRef nextgroup=leexRuleColon skipwhite display
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syn match leexRuleColon ":" contained nextgroup=leexRuleCode skipwhite skipnl display
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syn region leexRuleCode start="" end="\.\s*\%(%.*\)\?$" skip="^\s*%.*$" contained contains=@leexErlang keepend skipnl skipwhite
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" Sections
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syn match leexHeading "^\%(Definitions\|Rules\|Erlang code\)\.$" contained display
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syn region leexDefinitions start="^Definitions\.$" end="^[A-Z][A-Za-z ]*\.$"me=s-1 end="\%$" keepend fold
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\ contains=leexHeading,leexComment,leexMacroName
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syn region leexRules start="^Rules\.$" end="^[A-Z][A-Za-z ]*\.$"me=s-1 end="\%$" keepend fold
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\ contains=leexHeading,leexComment,leexRuleRegex
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syn region leexErlangCode start="^Erlang code\.$" end="^[A-Z][A-Za-z ]*\.$"me=s-1 end="\%$" keepend fold
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\ contains=leexHeading,@leexErlang
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hi def link leexComment Comment
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hi def link leexHeading PreProc
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hi def link leexRegexOperator Operator
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hi def link leexRegexDelimiter Delimiter
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hi def link leexRegexSpecial Special
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hi def link leexRegexRange String
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hi def link leexRegexEscape SpecialChar
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hi def link leexMacroName Identifier
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hi def link leexMacroEquals Operator
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hi def link leexMacroValue String
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hi def link leexMacroRef Macro
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hi def link leexRuleColon Operator
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syn sync fromstart
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let b:current_syntax = 'leex'
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