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" vim: ts=8
" Vim syntax file
" Language: ANTLRv3
" Maintainer: J�rn Horstmann (updated by Davyd Madeley)
" Last Change: 2008-11-21
" 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
syn keyword antlrKeyword grammar lexer parser tree header members options fragment returns throws scope init
syn match antlrCharacter '\\\(r\|n\|t\|f\|b\|"\|\'\|\\\|u\x\{4}\)' contained display
syn match antlrToken "\<[A-Z_][a-zA-Z_0-9]\+\>"
syn match antlrRule "[a-z][a-zA-Z_0-9]\+"
syn match antlrScopeVariable '$\k\+::\k\+'
syn match antlrOperator "[:;@.]"
syn match antlrOperator "[()]"
syn match antlrOperator "[?+*~|!]"
syn match antlrOperator "[->=^]"
syn match antlrBrace "[{}]"
syn match antlrBrace "[\[\]]"
syn region antlrAction matchgroup=antlrBrace start="[{\[]" end="[}\]]" contains=antlrVariable,antlrLiteral,antlrComment
syn match antlrVariable contained "$[a-zA-Z][a-zA-Z_0-9]*"
syn region antlrLiteral start=+'+ end=+'+ contains=antlrCharacter
syn region antlrLiteral start=+"+ end=+"+ contains=antlrCharacter
syn region antlrComment start="/\*" end="\*/"
syn match antlrComment "//.*$"
" Define the default highlighting.
" For version 5.7 and earlier: only when not done already
" For version 5.8 and later: only when an item doesn't have highlighting yet
if version >= 508
if version < 508
let did_antlr_syntax_inits = 1
command -nargs=+ HiLink hi link <args>
else
command -nargs=+ HiLink hi def link <args>
endif
HiLink antlrLiteral String
hi def antlrVariable term=bold cterm=bold gui=bold
HiLink antlrBrace Operator
HiLink antlrCharacter Special
HiLink antlrComment Comment
HiLink antlrOperator Operator
HiLink antlrKeyword Keyword
HiLink antlrToken PreProc
HiLink antlrScopeVariable Identifier
HiLink antlrRule Type
delcommand HiLink
endif
" try to figure out the target language
let target_languages = []
" can we figure out from the file name
let extensions = split(expand('%:t'), '\.')
if len(extensions) >= 3
" great.. the target language was provided via file name
call add(target_languages, tolower(extensions[-2]))
else
" no multiple extensions... have to figure out from the content
let buffer = join(getline(1, line('$')), "\n")
let antlr_options = matchstr(buffer, '\m\(\_s\|;\)options\_s\+{\_.\{-\}}')
call substitute(antlr_options, '\mlanguage\_s*=\_s*''\?\(.\{-\}\)''\?\_s*;', '\=add(target_languages, tolower(submatch(1)))', 'g')
endif
if exists('target_languages[-1]')
" the last defined target language takes precendece
let lang=target_languages[-1]
let syntax_file = findfile('syntax/' . lang . '.vim', &rtp, 1)
if syntax_file != ''
" if a valid syntax file was found only
let b:current_syntax = ''
unlet b:current_syntax
let region_name = '@' . lang . 'Language'
exe 'syntax include ' . region_name . ' ' . syntax_file
exe 'syntax region ' . lang . ' start="{" end="}" keepend contains=' . region_name
endif
endif
let b:current_syntax = "antlr3"
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