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" Vim syntax file
" Language: RCS file
" Maintainer: Dmitry Vasiliev <dima at hlabs dot org>
" URL: https://github.com/hdima/vim-scripts/blob/master/syntax/rcs.vim
" Last Change: 2012-02-11
" Filenames: *,v
" Version: 1.12
" Options:
" rcs_folding = 1 For folding strings
" quit when a syntax file was already loaded.
if exists("b:current_syntax")
finish
endif
" RCS file must end with a newline.
syn match rcsEOFError ".\%$" containedin=ALL
" Keywords.
syn keyword rcsKeyword head branch access symbols locks strict
syn keyword rcsKeyword comment expand date author state branches
syn keyword rcsKeyword next desc log
syn keyword rcsKeyword text nextgroup=rcsTextStr skipwhite skipempty
" Revision numbers and dates.
syn match rcsNumber "\<[0-9.]\+\>" display
" Strings.
if exists("rcs_folding") && has("folding")
" Folded strings.
syn region rcsString matchgroup=rcsString start="@" end="@" skip="@@" fold contains=rcsSpecial
syn region rcsTextStr matchgroup=rcsTextStr start="@" end="@" skip="@@" fold contained contains=rcsSpecial,rcsDiffLines
else
syn region rcsString matchgroup=rcsString start="@" end="@" skip="@@" contains=rcsSpecial
syn region rcsTextStr matchgroup=rcsTextStr start="@" end="@" skip="@@" contained contains=rcsSpecial,rcsDiffLines
endif
syn match rcsSpecial "@@" contained
syn match rcsDiffLines "[da]\d\+ \d\+$" contained
" Synchronization.
syn sync clear
if exists("rcs_folding") && has("folding")
syn sync fromstart
else
" We have incorrect folding if following sync patterns is turned on.
syn sync match rcsSync grouphere rcsString "[0-9.]\+\(\s\|\n\)\+log\(\s\|\n\)\+@"me=e-1
syn sync match rcsSync grouphere rcsTextStr "@\(\s\|\n\)\+text\(\s\|\n\)\+@"me=e-1
endif
" Define the default highlighting.
" Only when an item doesn't have highlighting yet.
command -nargs=+ HiLink hi def link <args>
HiLink rcsKeyword Keyword
HiLink rcsNumber Identifier
HiLink rcsString String
HiLink rcsTextStr String
HiLink rcsSpecial Special
HiLink rcsDiffLines Special
HiLink rcsEOFError Error
delcommand HiLink
let b:current_syntax = "rcs"
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