" Vim syntax file " Language: Ruby " Maintainer: Doug Kearns " URL: https://github.com/vim-ruby/vim-ruby " Release Coordinator: Doug Kearns " Last Change: 2019 Jul 13 " ---------------------------------------------------------------------------- " " Previous Maintainer: Mirko Nasato " Thanks to perl.vim authors, and to Reimer Behrends. :-) (MN) " ---------------------------------------------------------------------------- " Prelude {{{1 if exists("b:current_syntax") finish endif " this file uses line continuations let s:cpo_sav = &cpo set cpo&vim " eRuby Config {{{1 if exists('main_syntax') && main_syntax == 'eruby' let b:ruby_no_expensive = 1 endif " Folding Config {{{1 if has("folding") && exists("ruby_fold") setlocal foldmethod=syntax endif let s:foldable_groups = split( \ get( \ b:, \ 'ruby_foldable_groups', \ get(g:, 'ruby_foldable_groups', 'ALL') \ ) \ ) function! s:foldable(...) abort if index(s:foldable_groups, 'NONE') > -1 return 0 endif if index(s:foldable_groups, 'ALL') > -1 return 1 endif for l:i in a:000 if index(s:foldable_groups, l:i) > -1 return 1 endif endfor return 0 endfunction function! s:run_syntax_fold(args) abort let [_0, _1, groups, cmd; _] = matchlist(a:args, '\(["'']\)\(.\{-}\)\1\s\+\(.*\)') if call('s:foldable', split(groups)) let cmd .= ' fold' endif exe cmd endfunction com! -nargs=* SynFold call s:run_syntax_fold() " Not-Top Cluster {{{1 syn cluster rubyNotTop contains=@rubyCommentNotTop,@rubyStringNotTop,@rubyRegexpSpecial,@rubyDeclaration,@rubyExceptionHandler,@rubyClassOperator,rubyConditional,rubyModuleName,rubyClassName,rubySymbolDelimiter,rubyParentheses " Whitespace Errors {{{1 if exists("ruby_space_errors") if !exists("ruby_no_trail_space_error") syn match rubySpaceError display excludenl "\s\+$" endif if !exists("ruby_no_tab_space_error") syn match rubySpaceError display " \+\t"me=e-1 endif endif " Operators {{{1 syn match rubyEnglishBooleanOperator "\<\%(and\|or\|not\)\>" if exists("ruby_operators") || exists("ruby_pseudo_operators") syn match rubyDotOperator "\.\|&\." syn match rubyTernaryOperator "\%(\w\|[^\x00-\x7F]\)\@1\@!" syn match rubyComparisonOperator "<=>\|<=\|<\|>=\|[-=]\@1" syn match rubyBitwiseOperator "[~^|]\|&\.\@!\|<<\|>>" syn match rubyBooleanOperator "\%(\w\|[^\x00-\x7F]\)\@1\@!\|-=\|/=\|\*\*=\|\*=\|&&=\|&=\|||=\||=\|%=\|+=\|>>=\|<<=\|\^=" syn match rubyAssignmentOperator "=>\@!" containedin=rubyBlockParameterList " TODO: this is inelegant syn match rubyEqualityOperator "===\|==\|!=\|!\~\|=\~" syn region rubyBracketOperator matchgroup=rubyOperator start="\%(\%(\w\|[^\x00-\x7F]\)[?!]\=\|[]})]\)\@2<=\[" end="]" contains=ALLBUT,@rubyNotTop syn match rubyScopeOperator "::" syn match rubySuperClassOperator "<" contained syn match rubyEigenClassOperator "<<" contained syn match rubyLambdaOperator "->" syn match rubySplatOperator "\%([[{(|,=]\_s*\)\@<=\*" syn match rubySplatOperator "\%(^\|\s\)\@1<=\*\%(\h\|[^\x00-\x7F]\|[:$@[]\)\@=" syn match rubyDoubleSplatOperator "\%([{(|,]\_s*\)\@<=\*\*" syn match rubyDoubleSplatOperator "\s\@1<=\*\*\%(\h\|[^\x00-\x7F]\|[:$@{]\)\@=" syn match rubyProcOperator "\%([[(|,]\_s*\)\@<=&" syn match rubyProcOperator "\s\@1<=&\%(\h\|[^\x00-\x7F]\|[:$@]\|->\)\@=" syn cluster rubyProperOperator contains=rubyTernaryOperator,rubyArithmeticOperator,rubyComparisonOperator,rubyBitwiseOperator,rubyBooleanOperator,rubyRangeOperator,rubyAssignmentOperator,rubyEqualityOperator,rubyDefinedOperator,rubyEnglishBooleanOperator syn cluster rubyClassOperator contains=rubyEigenClassOperator,rubySuperClassOperator syn cluster rubyPseudoOperator contains=rubyDotOperator,rubyScopeOperator,rubyEigenClassOperator,rubySuperClassOperator,rubyLambdaOperator,rubySplatOperator,rubyDoubleSplatOperator,rubyProcOperator syn cluster rubyOperator contains=ruby.*Operator endif " String Interpolation and Backslash Notation {{{1 syn region rubyInterpolation matchgroup=rubyInterpolationDelimiter start="#{" end="}" contained contains=ALLBUT,@rubyNotTop syn match rubyInterpolation "#\$\%(-\w\|[!$&"'*+,./0:;<>?@\`~_]\|\w\+\)" display contained contains=rubyInterpolationDelimiter,@rubyGlobalVariable syn match rubyInterpolation "#@@\=\w\+" display contained contains=rubyInterpolationDelimiter,rubyInstanceVariable,rubyClassVariable syn match rubyInterpolationDelimiter "#\ze[$@]" display contained syn match rubyStringEscape "\\\_." contained display syn match rubyStringEscape "\\\o\{1,3}\|\\x\x\{1,2}" contained display syn match rubyStringEscape "\\u\%(\x\{4}\|{\x\{1,6}\%(\s\+\x\{1,6}\)*}\)" contained display syn match rubyStringEscape "\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\%(\\\o\{1,3}\|\\x\x\{1,2}\|\\\=.\)" contained display syn match rubyBackslashEscape "\\\\" contained display syn match rubyQuoteEscape "\\'" contained display syn match rubySpaceEscape "\\ " contained display syn match rubyParenthesisEscape "\\[()]" contained display syn match rubyCurlyBraceEscape "\\[{}]" contained display syn match rubyAngleBracketEscape "\\[<>]" contained display syn match rubySquareBracketEscape "\\[[\]]" contained display syn region rubyNestedParentheses start="(" skip="\\\\\|\\)" matchgroup=rubyString end=")" transparent contained syn region rubyNestedCurlyBraces start="{" skip="\\\\\|\\}" matchgroup=rubyString end="}" transparent contained syn region rubyNestedAngleBrackets start="<" skip="\\\\\|\\>" matchgroup=rubyString end=">" transparent contained syn region rubyNestedSquareBrackets start="\[" skip="\\\\\|\\\]" matchgroup=rubyString end="\]" transparent contained syn cluster rubySingleCharEscape contains=rubyBackslashEscape,rubyQuoteEscape,rubySpaceEscape,rubyParenthesisEscape,rubyCurlyBraceEscape,rubyAngleBracketEscape,rubySquareBracketEscape syn cluster rubyNestedBrackets contains=rubyNested.\+ syn cluster rubyStringSpecial contains=rubyInterpolation,rubyStringEscape syn cluster rubyStringNotTop contains=@rubyStringSpecial,@rubyNestedBrackets,@rubySingleCharEscape " Regular Expression Metacharacters {{{1 syn region rubyRegexpComment matchgroup=rubyRegexpSpecial start="(?#" skip="\\\\\|\\)" end=")" contained syn region rubyRegexpParens matchgroup=rubyRegexpSpecial start="(\(?:\|?<\=[=!]\|?>\|?<[a-z_]\w*>\|?[imx]*-[imx]*:\=\|\%(?#\)\@!\)" skip="\\\\\|\\)" end=")" contained transparent contains=@rubyRegexpSpecial syn region rubyRegexpBrackets matchgroup=rubyRegexpCharClass start="\[\^\=" skip="\\\\\|\\\]" end="\]" contained transparent contains=rubyRegexpBrackets,rubyStringEscape,rubyRegexpEscape,rubyRegexpCharClass,rubyRegexpIntersection oneline syn match rubyRegexpCharClass "\\[DdHhRSsWw]" contained display syn match rubyRegexpCharClass "\[:\^\=\%(alnum\|alpha\|ascii\|blank\|cntrl\|digit\|graph\|lower\|print\|punct\|space\|upper\|word\|xdigit\):\]" contained syn match rubyRegexpCharClass "\\[pP]{^\=.\{-}}" contained display syn match rubyRegexpEscape "\\[].*?+^$|\\/(){}[]" contained " see commit e477f10 syn match rubyRegexpQuantifier "[*?+][?+]\=" contained display syn match rubyRegexpQuantifier "{\d\+\%(,\d*\)\=}?\=" contained display syn match rubyRegexpAnchor "[$^]\|\\[ABbGZz]" contained display syn match rubyRegexpDot "\.\|\\X" contained display syn match rubyRegexpIntersection "&&" contained display syn match rubyRegexpSpecial "\\K" contained display syn match rubyRegexpSpecial "|" contained display syn match rubyRegexpSpecial "\\[1-9]\d\=\d\@!" contained display syn match rubyRegexpSpecial "\\k<\%([a-z_]\w*\|-\=\d\+\)\%([+-]\d\+\)\=>" contained display syn match rubyRegexpSpecial "\\k'\%([a-z_]\w*\|-\=\d\+\)\%([+-]\d\+\)\='" contained display syn match rubyRegexpSpecial "\\g<\%([a-z_]\w*\|-\=\d\+\)>" contained display syn match rubyRegexpSpecial "\\g'\%([a-z_]\w*\|-\=\d\+\)'" contained display syn cluster rubyRegexpSpecial contains=@rubyStringSpecial,rubyRegexpSpecial,rubyRegexpEscape,rubyRegexpBrackets,rubyRegexpCharClass,rubyRegexpDot,rubyRegexpQuantifier,rubyRegexpAnchor,rubyRegexpParens,rubyRegexpComment,rubyRegexpIntersection " Numbers {{{1 syn match rubyInteger "\%(\%(\w\|[^\x00-\x7F]\|[]})\"']\s*\)\@" display syn match rubyInteger "\%(\%(\w\|[^\x00-\x7F]\|[]})\"']\s*\)\@" display syn match rubyInteger "\%(\%(\w\|[^\x00-\x7F]\|[]})\"']\s*\)\@" display syn match rubyInteger "\%(\%(\w\|[^\x00-\x7F]\|[]})\"']\s*\)\@" display syn match rubyFloat "\%(\%(\w\|[^\x00-\x7F]\|[]})\"']\s*\)\@" display syn match rubyFloat "\%(\%(\w\|[^\x00-\x7F]\|[]})\"']\s*\)\@" display " Identifiers {{{1 syn match rubyClassName "\%(\%(^\|[^.]\)\.\s*\)\@\%(\s*(\)\@!" contained syn match rubyModuleName "\%(\%(^\|[^.]\)\.\s*\)\@\%(\s*(\)\@!" contained syn match rubyConstant "\%(\%(^\|[^.]\)\.\s*\)\@\%(\s*(\)\@!" syn match rubyClassVariable "@@\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*" display syn match rubyInstanceVariable "@\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*" display syn match rubyGlobalVariable "$\%(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\|-.\)" syn match rubySymbolDelimiter ":" contained syn match rubySymbol "[]})\"':]\@1\|<=\|<\|===\|[=!]=\|[=!]\~\|!@\|!\|>>\|>=\|>\||\|-@\|-\|/\|\[]=\|\[]\|\*\*\|\*\|&\|%\|+@\|+\|`\)" contains=rubySymbolDelimiter syn match rubySymbol "[]})\"':]\@1_,;:!?/.'"@$*\&+0]\)" contains=rubySymbolDelimiter syn match rubySymbol "[]})\"':]\@1\@!\)\=" contains=rubySymbolDelimiter SynFold ':' syn region rubySymbol matchgroup=rubySymbolDelimiter start="[]})\"':]\@1\%(\s*(\)\@=" syn region rubyParentheses start="(" end=")" contains=ALLBUT,@rubyNotTop containedin=rubyBlockParameterList syn region rubyBlockParameterList start="\%(\%(\\|{\)\_s*\)\@32<=|" end="|" contains=ALLBUT,@rubyNotTop,@rubyProperOperator if exists('ruby_global_variable_error') syn match rubyGlobalVariableError "$[^A-Za-z_]" display syn match rubyGlobalVariableError "$-[^0FIKWadilpvw]" display endif syn match rubyPredefinedVariable #$[!$&"'*+,./0:;<>?@\`~]# syn match rubyPredefinedVariable "$\d\+" display syn match rubyPredefinedVariable "$_\>" display syn match rubyPredefinedVariable "$-[0FIWadilpvw]\>" display syn match rubyPredefinedVariable "$\%(stderr\|stdin\|stdout\)\>" display syn match rubyPredefinedVariable "$\%(DEBUG\|FILENAME\|LOADED_FEATURES\|LOAD_PATH\|PROGRAM_NAME\|SAFE\|VERBOSE\)\>" display syn match rubyPredefinedConstant "\%(\%(^\|[^.]\)\.\s*\)\@\%(\s*(\)\@!" syn match rubyPredefinedConstant "\%(\%(^\|[^.]\)\.\s*\)\@\%(\s*(\)\@!" " Deprecated/removed in 1.9 syn match rubyPredefinedVariable "$=" syn match rubyPredefinedVariable "$-K\>" display syn match rubyPredefinedVariable "$\%(deferr\|defout\)\>" display syn match rubyPredefinedVariable "$KCODE\>" display " Deprecated/removed in 2.4 syn match rubyPredefinedConstant "\%(\%(^\|[^.]\)\.\s*\)\@\%(\s*(\)\@!" syn cluster rubyGlobalVariable contains=rubyGlobalVariable,rubyPredefinedVariable,rubyGlobalVariableError " Normal Regular Expressions {{{1 SynFold '/' syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\%(^\|\<\%(and\|or\|while\|until\|unless\|if\|elsif\|when\|not\|then\|else\)\|[;\~=!|&(,{[<>?:*+-]\)\s*\)\@<=/" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial nextgroup=@rubyModifier skipwhite SynFold '/' syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\%(\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\s\+\)\@<=/\%(=\|\_s\)\@!" end="/[iomxneus]*" skip="\\\\\|\\/" contains=@rubyRegexpSpecial nextgroup=@rubyModifier skipwhite " Generalized Regular Expressions {{{1 SynFold '%' syn region rubyRegexp matchgroup=rubyPercentRegexpDelimiter start="%r\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1[iomxneus]*" skip="\\\\\|\\\z1" contains=@rubyRegexpSpecial nextgroup=@rubyModifier skipwhite SynFold '%' syn region rubyRegexp matchgroup=rubyPercentRegexpDelimiter start="%r{" end="}[iomxneus]*" skip="\\\\\|\\}" contains=@rubyRegexpSpecial SynFold '%' syn region rubyRegexp matchgroup=rubyPercentRegexpDelimiter start="%r<" end=">[iomxneus]*" skip="\\\\\|\\>" contains=@rubyRegexpSpecial,rubyNestedAngleBrackets SynFold '%' syn region rubyRegexp matchgroup=rubyPercentRegexpDelimiter start="%r\[" end="\][iomxneus]*" skip="\\\\\|\\\]" contains=@rubyRegexpSpecial SynFold '%' syn region rubyRegexp matchgroup=rubyPercentRegexpDelimiter start="%r(" end=")[iomxneus]*" skip="\\\\\|\\)" contains=@rubyRegexpSpecial SynFold '%' syn region rubyRegexp matchgroup=rubyPercentRegexpDelimiter start="%r\z(\s\)" end="\z1[iomxneus]*" skip="\\\\\|\\\z1" contains=@rubyRegexpSpecial " Characters {{{1 syn match rubyCharacter "\%(\w\|[^\x00-\x7F]\|[]})\"'/]\)\@1" skip="\\\\\|\\>" contains=rubyBackslashEscape,rubyAngleBracketEscape,rubyNestedAngleBrackets SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%q\[" end="\]" skip="\\\\\|\\\]" contains=rubyBackslashEscape,rubySquareBracketEscape,rubyNestedSquareBrackets SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%q(" end=")" skip="\\\\\|\\)" contains=rubyBackslashEscape,rubyParenthesisEscape,rubyNestedParentheses SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%q\z(\s\)" end="\z1" skip="\\\\\|\\\z1" contains=rubyBackslashEscape,rubySpaceEscape SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%w{" end="}" skip="\\\\\|\\}" contains=rubyBackslashEscape,rubySpaceEscape,rubyCurlyBraceEscape,rubyNestedCurlyBraces SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%w<" end=">" skip="\\\\\|\\>" contains=rubyBackslashEscape,rubySpaceEscape,rubyAngleBracketEscape,rubyNestedAngleBrackets SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%w\[" end="\]" skip="\\\\\|\\\]" contains=rubyBackslashEscape,rubySpaceEscape,rubySquareBracketEscape,rubyNestedSquareBrackets SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%w(" end=")" skip="\\\\\|\\)" contains=rubyBackslashEscape,rubySpaceEscape,rubyParenthesisEscape,rubyNestedParentheses SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%s{" end="}" skip="\\\\\|\\}" contains=rubyBackslashEscape,rubyCurlyBraceEscape,rubyNestedCurlyBraces SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%s<" end=">" skip="\\\\\|\\>" contains=rubyBackslashEscape,rubyAngleBracketEscape,rubyNestedAngleBrackets SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%s\[" end="\]" skip="\\\\\|\\\]" contains=rubyBackslashEscape,rubySquareBracketEscape,rubyNestedSquareBrackets SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%s(" end=")" skip="\\\\\|\\)" contains=rubyBackslashEscape,rubyParenthesisEscape,rubyNestedParentheses SynFold '%' syn region rubyString matchgroup=rubyPercentSymbolDelimiter start="%s\z(\s\)" end="\z1" skip="\\\\\|\\\z1" contains=rubyBackslashEscape,rubySpaceEscape SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%i{" end="}" skip="\\\\\|\\}" contains=rubyBackslashEscape,rubySpaceEscape,rubyCurlyBraceEscape,rubyNestedCurlyBraces SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%i<" end=">" skip="\\\\\|\\>" contains=rubyBackslashEscape,rubySpaceEscape,rubyAngleBracketEscape,rubyNestedAngleBrackets SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%i\[" end="\]" skip="\\\\\|\\\]" contains=rubyBackslashEscape,rubySpaceEscape,rubySquareBracketEscape,rubyNestedSquareBrackets SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%i(" end=")" skip="\\\\\|\\)" contains=rubyBackslashEscape,rubySpaceEscape,rubyParenthesisEscape,rubyNestedParentheses " Generalized Double Quoted Strings, Array of Strings, Array of Symbols and Shell Command Output {{{1 SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="\%(\%(\w\|[^\x00-\x7F]\|]\)\s*\)\@" skip="\\\\\|\\>" contains=@rubyStringSpecial,rubyNestedAngleBrackets SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%[QWx]\=\[" end="\]" skip="\\\\\|\\\]" contains=@rubyStringSpecial,rubyNestedSquareBrackets SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%[QWx]\=(" end=")" skip="\\\\\|\\)" contains=@rubyStringSpecial,rubyNestedParentheses SynFold '%' syn region rubyString matchgroup=rubyPercentStringDelimiter start="%[Qx]\z(\s\)" end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%I\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial nextgroup=@rubyModifier skipwhite SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%I{" end="}" skip="\\\\\|\\}" contains=@rubyStringSpecial,rubyNestedCurlyBraces SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%I<" end=">" skip="\\\\\|\\>" contains=@rubyStringSpecial,rubyNestedAngleBrackets SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%I\[" end="\]" skip="\\\\\|\\\]" contains=@rubyStringSpecial,rubyNestedSquareBrackets SynFold '%' syn region rubySymbol matchgroup=rubyPercentSymbolDelimiter start="%I(" end=")" skip="\\\\\|\\)" contains=@rubyStringSpecial,rubyNestedParentheses " Here Documents {{{1 syn region rubyHeredocStart matchgroup=rubyHeredocDelimiter start=+\%(\%(class\|::\|\.\@1>\|[<>]=\=\|<=>\|===\|[=!]=\|[=!]\~\|!\|`\)\%([[:space:];#(]\|$\)\@=" contained containedin=rubyAliasDeclaration,rubyAliasDeclaration2,rubyMethodDeclaration syn cluster rubyDeclaration contains=rubyAliasDeclaration,rubyAliasDeclaration2,rubyMethodDeclaration,rubyModuleDeclaration,rubyClassDeclaration,rubyMethodName " Keywords {{{1 " TODO: reorganise syn match rubyControl "\%#=1\<\%(break\|in\|next\|redo\|retry\|return\)\>" syn match rubyKeyword "\%#=1\<\%(super\|yield\)\>" syn match rubyBoolean "\%#=1\<\%(true\|false\)\>[?!]\@!" syn match rubyPseudoVariable "\%#=1\<\(self\|nil\)\>[?!]\@!" syn match rubyPseudoVariable "\%#=1\<__\%(ENCODING\|dir\|FILE\|LINE\|callee\|method\)__\>" syn match rubyBeginEnd "\%#=1\<\%(BEGIN\|END\)\>" " Expensive Mode {{{1 " Match 'end' with the appropriate opening keyword for syntax based folding " and special highlighting of module/class/method definitions if !exists("b:ruby_no_expensive") && !exists("ruby_no_expensive") syn match rubyDefine "\" nextgroup=rubyAliasDeclaration skipwhite skipnl syn match rubyDefine "\" nextgroup=rubyMethodDeclaration skipwhite skipnl syn match rubyDefine "\" nextgroup=rubyMethodName skipwhite skipnl syn match rubyClass "\" nextgroup=rubyClassDeclaration,rubyEigenClassOperator skipwhite skipnl syn match rubyModule "\" nextgroup=rubyModuleDeclaration skipwhite skipnl SynFold 'def' syn region rubyMethodBlock start="\" matchgroup=rubyDefine skip="\" end="\" contains=ALLBUT,@rubyNotTop SynFold 'class' syn region rubyClassBlock start="\" matchgroup=rubyClass skip="\" syn match rubyRepeatModifier "\<\%(while\|until\)\>" syn match rubyRescueModifier "\" syn cluster rubyModifier contains=rubyConditionalModifier,rubyRepeatModifier,rubyRescueModifier SynFold 'do' syn region rubyDoBlock matchgroup=rubyControl start="\" skip="\" contained containedin=rubyCaseExpression syn match rubyConditional "\<\%(then\|else\|elsif\)\>" contained containedin=rubyConditionalExpression syn match rubyExceptionHandler "\<\%(\%(\%(;\|^\)\s*\)\@<=rescue\|else\|ensure\)\>" contained containedin=rubyBlockExpression,rubyDoBlock syn match rubyExceptionHandler2 "\<\%(\%(\%(;\|^\)\s*\)\@<=rescue\|else\|ensure\)\>" contained containedin=rubyModuleBlock,rubyClassBlock,rubyMethodBlock syn cluster rubyExceptionHandler contains=rubyExceptionHandler,rubyExceptionHandler2 " statements with optional 'do' syn region rubyOptionalDoLine matchgroup=rubyRepeat start="\" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+=-]\|\%(\<\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\@" matchgroup=rubyOptionalDo end="\" end="\ze\%(;\|$\)" oneline contains=ALLBUT,@rubyNotTop SynFold 'for' syn region rubyRepeatExpression start="\" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+=-]\|\%(\<\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*\)\@" matchgroup=rubyRepeat skip="\" nextgroup=rubyMethodDeclaration skipwhite skipnl syn match rubyControl "\" nextgroup=rubyClassDeclaration skipwhite skipnl syn match rubyControl "\" nextgroup=rubyModuleDeclaration skipwhite skipnl syn match rubyControl "\<\%(case\|begin\|do\|for\|if\|unless\|while\|until\|else\|elsif\|rescue\|ensure\|then\|when\|end\)\>" syn match rubyKeyword "\<\%(alias\|undef\)\>" endif " Special Methods {{{1 if !exists("ruby_no_special_methods") syn match rubyAccess "\<\%(public\|protected\|private\)\>" " use re=2 syn match rubyAccess "\%#=1\<\%(public\|private\)_class_method\>" syn match rubyAccess "\%#=1\<\%(public\|private\)_constant\>" syn match rubyAccess "\%#=1\" syn match rubyAttribute "\%#=1\%(\%(^\|;\)\s*\)\@<=attr\>\(\s*[.=]\)\@!" " attr is a common variable name syn match rubyAttribute "\%#=1\" syn match rubyControl "\%#=1\<\%(abort\|at_exit\|exit\|fork\|loop\|trap\)\>" syn match rubyEval "\%#=1\" syn match rubyEval "\%#=1\<\%(class\|instance\|module\)_eval\>" syn match rubyException "\%#=1\<\%(raise\|fail\|catch\|throw\)\>" syn match rubyInclude "\%#=1\<\%(autoload\|gem\|load\|require\%(_relative\)\=\)\>" syn match rubyKeyword "\%#=1\<\%(callcc\|caller\|lambda\|proc\)\>" syn match rubyMacro "\%#=1\<\%(extend\|include\|prepend\|refine\|using\)\>" syn match rubyMacro "\%#=1\<\%(alias\|define\|define_singleton\|remove\|undef\)_method\>" endif " Comments and Documentation {{{1 syn match rubySharpBang "\%^#!.*" display syn keyword rubyTodo FIXME NOTE TODO OPTIMIZE HACK REVIEW XXX todo contained syn match rubyEncoding "[[:alnum:]-]\+" contained display syn match rubyMagicComment "\c\%<3l#\s*\zs\%(coding\|encoding\):" contained nextgroup=rubyEncoding skipwhite syn match rubyMagicComment "\c\%<10l#\s*\zs\%(frozen_string_literal\|warn_indent\|warn_past_scope\):" contained nextgroup=rubyBoolean skipwhite syn match rubyComment "#.*" contains=@rubyCommentSpecial,rubySpaceError,@Spell syn cluster rubyCommentSpecial contains=rubySharpBang,rubyTodo,rubyMagicComment syn cluster rubyCommentNotTop contains=@rubyCommentSpecial,rubyEncoding if !exists("ruby_no_comment_fold") && s:foldable('#') syn region rubyMultilineComment start="^\s*#.*\n\%(^\s*#\)\@=" end="^\s*#.*\n\%(^\s*#\)\@!" contains=rubyComment transparent fold keepend syn region rubyDocumentation start="^=begin\ze\%(\s.*\)\=$" end="^=end\%(\s.*\)\=$" contains=rubySpaceError,rubyTodo,@Spell fold else syn region rubyDocumentation start="^=begin\s*$" end="^=end\s*$" contains=rubySpaceError,rubyTodo,@Spell endif " {{{1 Useless Line Continuations syn match rubyUselessLineContinuation "\%([.:,;{([<>~\*%&^|+=-]\|%(\%(\w\|[^\x00-\x7F]\)\@1\)" transparent contains=rubyDotOperator,rubyScopeOperator " Bang and Predicate Methods and Operators {{{1 syn match rubyBangPredicateMethod "\%(\h\|[^\x00-\x7F]\)\%(\w\|[^\x00-\x7F]\)*[?!]" if !exists("ruby_no_special_methods") syn match rubyControl "\%#=1\