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1 " Vim syntax file
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2 " Language: RCS file
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3 " Maintainer: Dmitry Vasiliev <dima at hlabs dot spb dot ru>
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4 " URL: http://www.hlabs.spb.ru/vim/rcs.vim
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5 " Revision: $Id$
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6 " Filenames: *,v
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7 " Version: 1.11
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8
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9 " Options:
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10 " rcs_folding = 1 For folding strings
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11
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12 " For version 5.x: Clear all syntax items.
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13 " For version 6.x: Quit when a syntax file was already loaded.
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14 if version < 600
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15 syntax clear
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16 elseif exists("b:current_syntax")
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17 finish
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18 endif
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19
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20 " RCS file must end with a newline.
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21 syn match rcsEOFError ".\%$" containedin=ALL
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22
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23 " Keywords.
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24 syn keyword rcsKeyword head branch access symbols locks strict
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25 syn keyword rcsKeyword comment expand date author state branches
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26 syn keyword rcsKeyword next desc log
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27 syn keyword rcsKeyword text nextgroup=rcsTextStr skipwhite skipempty
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28
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29 " Revision numbers and dates.
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30 syn match rcsNumber "\<[0-9.]\+\>" display
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31
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32 " Strings.
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33 if exists("rcs_folding") && has("folding")
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34 " Folded strings.
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35 syn region rcsString matchgroup=rcsString start="@" end="@" skip="@@" fold contains=rcsSpecial
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36 syn region rcsTextStr matchgroup=rcsTextStr start="@" end="@" skip="@@" fold contained contains=rcsSpecial,rcsDiffLines
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37 else
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38 syn region rcsString matchgroup=rcsString start="@" end="@" skip="@@" contains=rcsSpecial
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39 syn region rcsTextStr matchgroup=rcsTextStr start="@" end="@" skip="@@" contained contains=rcsSpecial,rcsDiffLines
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40 endif
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41 syn match rcsSpecial "@@" contained
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42 syn match rcsDiffLines "[da]\d\+ \d\+$" contained
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43
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44 " Synchronization.
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45 syn sync clear
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46 if exists("rcs_folding") && has("folding")
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47 syn sync fromstart
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48 else
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49 " We have incorrect folding if following sync patterns is turned on.
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50 syn sync match rcsSync grouphere rcsString "[0-9.]\+\(\s\|\n\)\+log\(\s\|\n\)\+@"me=e-1
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51 syn sync match rcsSync grouphere rcsTextStr "@\(\s\|\n\)\+text\(\s\|\n\)\+@"me=e-1
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52 endif
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53
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54 " Define the default highlighting.
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55 " For version 5.7 and earlier: only when not done already.
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56 " For version 5.8 and later: only when an item doesn't have highlighting yet.
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57 if version >= 508 || !exists("did_rcs_syn_inits")
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58 if version <= 508
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59 let did_rcs_syn_inits = 1
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60 command -nargs=+ HiLink hi link <args>
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61 else
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62 command -nargs=+ HiLink hi def link <args>
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63 endif
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64
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65 HiLink rcsKeyword Keyword
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66 HiLink rcsNumber Identifier
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67 HiLink rcsString String
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68 HiLink rcsTextStr String
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69 HiLink rcsSpecial Special
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70 HiLink rcsDiffLines Special
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71 HiLink rcsEOFError Error
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72
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73 delcommand HiLink
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74 endif
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75
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76 let b:current_syntax = "rcs"
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