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1 " Vim syntax file
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2 " Language: WEB Changes
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3 " Maintainer: Andreas Scherer <andreas.scherer@pobox.com>
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4 " Last Change: April 25, 2001
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5
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6 " Details of the change mechanism of the WEB and CWEB languages can be found
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7 " in the articles by Donald E. Knuth and Silvio Levy cited in "web.vim" and
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8 " "cweb.vim" respectively.
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9
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10 " For version 5.x: Clear all syntax items
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11 " For version 6.x: Quit when a syntax file was already loaded
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12 if version < 600
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13 syn clear
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14 elseif exists("b:current_syntax")
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15 finish
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16 endif
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17
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18 " We distinguish two groups of material, (a) stuff between @x..@y, and
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19 " (b) stuff between @y..@z. WEB/CWEB ignore everything else in a change file.
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20 syn region changeFromMaterial start="^@x.*$"ms=e+1 end="^@y.*$"me=s-1
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21 syn region changeToMaterial start="^@y.*$"ms=e+1 end="^@z.*$"me=s-1
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22
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23 " Define the default highlighting.
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24 " For version 5.7 and earlier: only when not done already
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25 " For version 5.8 and later: only when an item doesn't have highlighting yet
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26 if version >= 508 || !exists("did_change_syntax_inits")
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27 if version < 508
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28 let did_change_syntax_inits = 1
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29 command -nargs=+ HiLink hi link <args>
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30 else
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31 command -nargs=+ HiLink hi def link <args>
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32 endif
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33
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34 HiLink changeFromMaterial String
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35 HiLink changeToMaterial Statement
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36
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37 delcommand HiLink
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38 endif
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39
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40 let b:current_syntax = "change"
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41
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42 " vim: ts=8
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