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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.
hi def link rcsKeyword Keyword
hi def link rcsNumber Identifier
hi def link rcsString String
hi def link rcsTextStr String
hi def link rcsSpecial Special
hi def link rcsDiffLines Special
hi def link rcsEOFError Error
let b:current_syntax = "rcs"
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