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" Vim syntax file
" Language: Ruby
" Maintainer: Doug Kearns <dougkearns@gmail.com>
" Info: $Id$
" URL: http://vim-ruby.rubyforge.org
" Anon CVS: See above site
" Release Coordinator: Doug Kearns <dougkearns@gmail.com>
" ----------------------------------------------------------------------------
"
" Previous Maintainer: Mirko Nasato
" Thanks to perl.vim authors, and to Reimer Behrends. :-) (MN)
" ----------------------------------------------------------------------------
" For version 5.x: Clear all syntax items
" For version 6.x: Quit when a syntax file was already loaded
if version < 600
syntax clear
elseif exists("b:current_syntax")
finish
endif
if has("folding") && exists("ruby_fold")
setlocal foldmethod=syntax
endif
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
if exists("ruby_operators")
syn match rubyOperator "\%(\^\|\~\|\%(class\s*\)\@<!<<\|<=>\|<=\|\%(<\|\<class\s\+\u\w*\s*\)\@<!<[^<]\@=\|===\|==\|=\~\|>>\|>=\|>\||\|-\|/\|\*\*\|\*\|&\|%\|+\)"
syn match rubyPseudoOperator "\%(-=\|/=\|\*\*=\|\*=\|&&\|&=\|&&=\|||\||=\|||=\|%=\|+=\|!\~\|!=\)"
syn region rubyBracketOperator matchgroup=rubyOperator start="\%([_[:lower:]]\w*[?!=]\=\|}\)\@<=\[\s*" end="\s*]"
endif
" Expression Substitution and Backslash Notation
syn match rubyEscape "\\\\\|\\[abefnrstv]\|\\\o\{1,3}\|\\x\x\{1,2}" contained display
syn match rubyEscape "\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\%(\\\o\{1,3}\|\\x\x\{1,2}\|\\\=\S\)" contained display
syn region rubyInterpolation matchgroup=rubyInterpolationDelimiter start="#{" end="}" contained contains=TOP
syn match rubyInterpolation "#\%(\$\|@@\=\)\w\+" display contained contains=rubyInterpolationDelimiter,rubyInstanceVariable,rubyClassVariable,rubyGlobalVariable,rubyPredefinedVariable
syn match rubyInterpolationDelimiter "#\ze\%(\$\|@@\=\)\w\+" display contained
syn region rubyNoInterpolation start="\\#{" end="}" contained
syn match rubyNoInterpolation "\\#{" display contained
syn match rubyNoInterpolation "\\#\%(\$\|@@\=\)\w\+" display contained
syn match rubyDelimEscape "\\[(<{\[)>}\]]" transparent display contained contains=NONE
syn region rubyNestedParentheses start="(" end=")" skip="\\\\\|\\)" transparent contained contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimEscape
syn region rubyNestedCurlyBraces start="{" end="}" skip="\\\\\|\\}" transparent contained contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimEscape
syn region rubyNestedAngleBrackets start="<" end=">" skip="\\\\\|\\>" transparent contained contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimEscape
syn region rubyNestedSquareBrackets start="\[" end="\]" skip="\\\\\|\\\]" transparent contained contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimEscape
syn cluster rubyStringSpecial contains=rubyInterpolation,rubyNoInterpolation,rubyEscape
syn cluster rubyExtendedStringSpecial contains=@rubyStringSpecial,rubyNestedParentheses,rubyNestedCurlyBraces,rubyNestedAngleBrackets,rubyNestedSquareBrackets
" Numbers and ASCII Codes
syn match rubyASCIICode "\w\@<!\%(?\%(\\M-\\C-\|\\C-\\M-\|\\M-\\c\|\\c\\M-\|\\c\|\\C-\|\\M-\)\=\%(\\\o\{1,3}\|\\x\x\{1,2}\|\\\=\S\)\)"
syn match rubyInteger "\<0[xX]\x\+\%(_\x\+\)*\>" display
syn match rubyInteger "\<\%(0[dD]\)\=\%(0\|[1-9]\d*\%(_\d\+\)*\)\>" display
syn match rubyInteger "\<0[oO]\=\o\+\%(_\o\+\)*\>" display
syn match rubyInteger "\<0[bB][01]\+\%(_[01]\+\)*\>" display
syn match rubyFloat "\<\%(0\|[1-9]\d*\%(_\d\+\)*\)\.\d\+\%(_\d\+\)*\>" display
syn match rubyFloat "\<\%(0\|[1-9]\d*\%(_\d\+\)*\)\%(\.\d\+\%(_\d\+\)*\)\=\%([eE][-+]\=\d\+\%(_\d\+\)*\)\>" display
" Identifiers
syn match rubyLocalVariableOrMethod "\<[_[:lower:]][_[:alnum:]]*[?!=]\=" contains=NONE display transparent
syn match rubyBlockArgument "&[_[:lower:]][_[:alnum:]]" contains=NONE display transparent
syn match rubyConstant "\%(\%([.@$]\@<!\.\)\@<!\<\|::\)\_s*\zs\u\w*\%(\>\|::\)\@=\%(\s*(\)\@!"
syn match rubyClassVariable "@@\h\w*" display
syn match rubyInstanceVariable "@\h\w*" display
syn match rubyGlobalVariable "$\%(\h\w*\|-.\)"
syn match rubySymbol ":\@<!:\%(\^\|\~\|<<\|<=>\|<=\|<\|===\|==\|=\~\|>>\|>=\|>\||\|-@\|-\|/\|\[]=\|\[]\|\*\*\|\*\|&\|%\|+@\|+\|`\)"
syn match rubySymbol ":\@<!:\$\%(-.\|[`~<=>_,;:!?/.'"@$*\&+0]\)"
syn match rubySymbol ":\@<!:\%(\$\|@@\=\)\=\h\w*[?!=]\="
syn region rubySymbol start=":\@<!:\"" end="\"" skip="\\\\\|\\\""
syn region rubySymbol start=":\@<!:\"" end="\"" skip="\\\\\|\\\"" contains=@rubyStringSpecial fold
if exists("ruby_operators")
syn match rubyBlockParameter "\%(\%(\%(\<do\>\|{\)\s*\)|\s*\)\@<=[( ,a-zA-Z0-9_*)]\+\%(\s*|\)\@=" display
else
syn match rubyBlockParameter "\%(\%(\<do\>\|{\)\s*\)\@<=|\s*\zs[( ,a-zA-Z0-9_*)]\+\ze\s*|" display
endif
syn match rubyPredefinedVariable #$[!$&"'*+,./0:;<=>?@\`~1-9]#
syn match rubyPredefinedVariable "$_\>" display
syn match rubyPredefinedVariable "$-[0FIKadilpvw]\>" display
syn match rubyPredefinedVariable "$\%(deferr\|defout\|stderr\|stdin\|stdout\)\>" display
syn match rubyPredefinedVariable "$\%(DEBUG\|FILENAME\|KCODE\|LOADED_FEATURES\|LOAD_PATH\|PROGRAM_NAME\|SAFE\|VERBOSE\)\>" display
syn match rubyPredefinedConstant "\%(\%(\.\@<!\.\)\@<!\|::\)\_s*\zs\%(MatchingData\|ARGF\|ARGV\|ENV\)\>\%(\s*(\)\@!"
syn match rubyPredefinedConstant "\%(\%(\.\@<!\.\)\@<!\|::\)\_s*\zs\%(DATA\|FALSE\|NIL\|RUBY_PLATFORM\|RUBY_RELEASE_DATE\)\>\%(\s*(\)\@!"
syn match rubyPredefinedConstant "\%(\%(\.\@<!\.\)\@<!\|::\)\_s*\zs\%(RUBY_VERSION\|STDERR\|STDIN\|STDOUT\|TOPLEVEL_BINDING\|TRUE\)\>\%(\s*(\)\@!"
"Obsolete Global Constants
"syn match rubyPredefinedConstant "\%(::\)\=\zs\%(PLATFORM\|RELEASE_DATE\|VERSION\)\>"
"syn match rubyPredefinedConstant "\%(::\)\=\zs\%(NotImplementError\)\>"
" Normal Regular Expression
syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\%(^\|\<\%(and\|or\|while\|until\|unless\|if\|elsif\|when\|not\|then\)\|[;\~=!|&(,[>]\)\s*\)\@<=/" end="/[iomx]*" skip="\\\\\|\\/" contains=@rubyStringSpecial fold
syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="\%(\<\%(split\|scan\|gsub\|sub\)\s*\)\@<=/" end="/[iomx]*" skip="\\\\\|\\/" contains=@rubyStringSpecial fold
" Normal String and Shell Command Output
syn region rubyString matchgroup=rubyStringDelimiter start="\"" end="\"" skip="\\\\\|\\\"" contains=@rubyStringSpecial fold
syn region rubyString matchgroup=rubyStringDelimiter start="'" end="'" skip="\\\\\|\\'" fold
syn region rubyString matchgroup=rubyStringDelimiter start="`" end="`" skip="\\\\\|\\`" contains=@rubyStringSpecial fold
" Generalized Regular Expression
syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1[iomx]*" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r{" end="}[iomx]*" skip="\\\\\|\\}" contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimEscape fold
syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r<" end=">[iomx]*" skip="\\\\\|\\>" contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimEscape fold
syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r\[" end="\][iomx]*" skip="\\\\\|\\\]" contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimEscape fold
syn region rubyRegexp matchgroup=rubyRegexpDelimiter start="%r(" end=")[iomx]*" skip="\\\\\|\\)" contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimEscape fold
" Generalized Single Quoted String, Symbol and Array of Strings
syn region rubyString matchgroup=rubyStringDelimiter start="%[qsw]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" fold
syn region rubyString matchgroup=rubyStringDelimiter start="%[qsw]{" end="}" skip="\\\\\|\\}" fold contains=rubyNestedCurlyBraces,rubyDelimEscape
syn region rubyString matchgroup=rubyStringDelimiter start="%[qsw]<" end=">" skip="\\\\\|\\>" fold contains=rubyNestedAngleBrackets,rubyDelimEscape
syn region rubyString matchgroup=rubyStringDelimiter start="%[qsw]\[" end="\]" skip="\\\\\|\\\]" fold contains=rubyNestedSquareBrackets,rubyDelimEscape
syn region rubyString matchgroup=rubyStringDelimiter start="%[qsw](" end=")" skip="\\\\\|\\)" fold contains=rubyNestedParentheses,rubyDelimEscape
" Generalized Double Quoted String and Array of Strings and Shell Command Output
" Note: %= is not matched here as the beginning of a double quoted string
syn region rubyString matchgroup=rubyStringDelimiter start="%\z([~`!@#$%^&*_\-+|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\z([~`!@#$%^&*_\-+=|\:;"',.?/]\)" end="\z1" skip="\\\\\|\\\z1" contains=@rubyStringSpecial fold
syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\={" end="}" skip="\\\\\|\\}" contains=@rubyStringSpecial,rubyNestedCurlyBraces,rubyDelimEscape fold
syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=<" end=">" skip="\\\\\|\\>" contains=@rubyStringSpecial,rubyNestedAngleBrackets,rubyDelimEscape fold
syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=\[" end="\]" skip="\\\\\|\\\]" contains=@rubyStringSpecial,rubyNestedSquareBrackets,rubyDelimEscape fold
syn region rubyString matchgroup=rubyStringDelimiter start="%[QWx]\=(" end=")" skip="\\\\\|\\)" contains=@rubyStringSpecial,rubyNestedParentheses,rubyDelimEscape fold
" Here Document
syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-\=\zs\%(\h\w*\)+ end=+$+ oneline contains=TOP
syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-\=\zs"\%([^"]*\)"+ end=+$+ oneline contains=TOP
syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-\=\zs'\%([^']*\)'+ end=+$+ oneline contains=TOP
syn region rubyHeredocStart matchgroup=rubyStringDelimiter start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-\=\zs`\%([^`]*\)`+ end=+$+ oneline contains=TOP
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<\z(\h\w*\)\ze+hs=s+2 matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<"\z([^"]*\)"\ze+hs=s+2 matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<'\z([^']*\)'\ze+hs=s+2 matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart fold keepend
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<`\z([^`]*\)`\ze+hs=s+2 matchgroup=rubyStringDelimiter end=+^\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-\z(\h\w*\)\ze+hs=s+3 matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-"\z([^"]*\)"\ze+hs=s+3 matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-'\z([^']*\)'\ze+hs=s+3 matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart fold keepend
syn region rubyString start=+\%(\%(class\s*\|\%(\.\|::\)\)\_s*\)\@<!<<-`\z([^`]*\)`\ze+hs=s+3 matchgroup=rubyStringDelimiter end=+^\s*\zs\z1$+ contains=rubyHeredocStart,@rubyStringSpecial fold keepend
if exists('main_syntax') && main_syntax == 'eruby'
let b:ruby_no_expensive = 1
end
syn match rubyAliasDeclaration "[^[:space:];#.()]\+" contained contains=rubySymbol,rubyGlobalVariable,rubyPredefinedVariable nextgroup=rubyAliasDeclaration2 skipwhite
syn match rubyAliasDeclaration2 "[^[:space:];#.()]\+" contained contains=rubySymbol,rubyGlobalVariable,rubyPredefinedVariable
syn match rubyMethodDeclaration "[^[:space:];#(]\+" contained contains=rubyConstant,rubyBoolean,rubyPseudoVariable,rubyInstanceVariable,rubyClassVariable,rubyGlobalVariable
syn match rubyClassDeclaration "[^[:space:];#<]\+" contained contains=rubyConstant
syn match rubyModuleDeclaration "[^[:space:];#]\+" contained contains=rubyConstant
syn match rubyFunction "\<[_[:alpha:]][_[:alnum:]]*[?!=]\=[[:alnum:].:?!=]\@!" contained containedin=rubyMethodDeclaration
syn match rubyFunction "\%(\s\|^\)\@<=[_[:alpha:]][_[:alnum:]]*[?!=]\=\%(\s\|$\)\@=" contained containedin=rubyAliasDeclaration,rubyAliasDeclaration2
syn match rubyFunction "\%([[:space:].]\|^\)\@<=\%(\[\]=\=\|\*\*\|[+-]@\=\|[*/%|&^~]\|<<\|>>\|[<>]=\=\|<=>\|===\|==\|=\~\|`\)\%([[:space:];#(]\|$\)\@=" contained containedin=rubyAliasDeclaration,rubyAliasDeclaration2,rubyMethodDeclaration
" Expensive Mode - colorize *end* according to opening statement
if !exists("b:ruby_no_expensive") && !exists("ruby_no_expensive")
syn match rubyDefine "\<alias\>" nextgroup=rubyAliasDeclaration skipwhite skipnl
syn match rubyDefine "\<def\>" nextgroup=rubyMethodDeclaration skipwhite skipnl
syn match rubyClass "\<class\>" nextgroup=rubyClassDeclaration skipwhite skipnl
syn match rubyModule "\<module\>" nextgroup=rubyModuleDeclaration skipwhite skipnl
syn region rubyBlock start="\<def\>" matchgroup=rubyDefine end="\%(\<def\_s\+\)\@<!\<end\>" contains=TOP fold
syn region rubyBlock start="\<class\>" matchgroup=rubyClass end="\<end\>" contains=TOP fold
syn region rubyBlock start="\<module\>" matchgroup=rubyModule end="\<end\>" contains=TOP fold
" modifiers
syn match rubyConditional "\<\%(if\|unless\)\>" display
syn match rubyRepeat "\<\%(while\|until\)\>" display
" *do* requiring *end*
syn region rubyDoBlock matchgroup=rubyControl start="\<do\>" end="\<end\>" contains=TOP fold
" *{* requiring *}*
syn region rubyCurlyBlock start="{" end="}" contains=TOP fold
" statements without *do*
syn region rubyNoDoBlock matchgroup=rubyControl start="\<begin\>" end="\<end\>" contains=TOP fold
syn region rubyCaseBlock matchgroup=rubyConditional start="\<case\>" end="\<end\>" contains=TOP fold
syn region rubyConditionalBlock matchgroup=rubyConditional start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![!=?]\)\s*\)\@<=\%(if\|unless\)\>" end="\<end\>" contains=TOP fold
syn keyword rubyConditional then else when contained containedin=rubyCaseBlock
syn keyword rubyConditional then else elsif contained containedin=rubyConditionalBlock
" statement with optional *do*
syn region rubyOptDoLine matchgroup=rubyRepeat start="\<for\>" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![!=?]\)\s*\)\@<=\<\%(until\|while\)\>" end="\%(\<do\>\|:\)" end="\ze\%(;\|$\)" oneline contains=TOP
syn region rubyOptDoBlock start="\<for\>" start="\%(\%(^\|\.\.\.\=\|[{:,;([<>~\*/%&^|+-]\|\%(\<[_[:lower:]][_[:alnum:]]*\)\@<![!=?]\)\s*\)\@<=\<\%(until\|while\)\>" matchgroup=rubyRepeat end="\<end\>" contains=TOP nextgroup=rubyOptDoLine fold
if !exists("ruby_minlines")
let ruby_minlines = 50
endif
exec "syn sync minlines=" . ruby_minlines
else
syn match rubyControl "\<def\>" nextgroup=rubyMethodDeclaration skipwhite skipnl
syn match rubyControl "\<class\>" nextgroup=rubyClassDeclaration skipwhite skipnl
syn match rubyControl "\<module\>" nextgroup=rubyModuleDeclaration skipwhite skipnl
syn keyword rubyControl case begin do for if unless while until else elsif then when end
syn keyword rubyKeyword alias
endif
" Keywords
" Note: the following keywords have already been defined:
" begin case class def do end for if module unless until while
syn keyword rubyControl and break ensure in next not or redo rescue retry return
syn match rubyOperator "\<defined?" display
syn keyword rubyKeywo
|
