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1 " Vim syntax support file
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2 " Maintainer: Bram Moolenaar <Bram@vim.org>
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3 " Last Change: 2006 Apr 30
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4
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5 " This file sets up for syntax highlighting.
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6 " It is loaded from "syntax.vim" and "manual.vim".
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7 " 1. Set the default highlight groups.
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8 " 2. Install Syntax autocommands for all the available syntax files.
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9
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10 if !has("syntax")
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11 finish
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12 endif
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13
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14 " let others know that syntax has been switched on
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15 let syntax_on = 1
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16
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17 " Set the default highlighting colors. Use a color scheme if specified.
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18 if exists("colors_name")
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19 exe "colors " . colors_name
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20 else
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21 runtime! syntax/syncolor.vim
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22 endif
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23
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24 " Line continuation is used here, remove 'C' from 'cpoptions'
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25 let s:cpo_save = &cpo
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26 set cpo&vim
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27
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28 " First remove all old syntax autocommands.
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29 au! Syntax
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30
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31 au Syntax * call s:SynSet()
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32
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33 fun! s:SynSet()
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34 " clear syntax for :set syntax=OFF and any syntax name that doesn't exist
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35 syn clear
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36 if exists("b:current_syntax")
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37 unlet b:current_syntax
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38 endif
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39
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40 let s = expand("<amatch>")
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41 if s == "ON"
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42 " :set syntax=ON
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43 if &filetype == ""
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44 echohl ErrorMsg
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45 echo "filetype unknown"
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46 echohl None
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47 endif
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48 let s = &filetype
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49 endif
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50
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51 if s != ""
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52 " Load the syntax file(s). When there are several, separated by dots,
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53 " load each in sequence.
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54 for name in split(s, '\.')
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55 exe "runtime! syntax/" . name . ".vim syntax/" . name . "/*.vim"
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56 endfor
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57 endif
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58 endfun
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59
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60
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61 " Handle adding doxygen to other languages (C, C++, IDL)
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62 au Syntax cpp,c,idl
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63 \ if (exists('b:load_doxygen_syntax') && b:load_doxygen_syntax)
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64 \ || (exists('g:load_doxygen_syntax') && g:load_doxygen_syntax)
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65 \ | runtime! syntax/doxygen.vim
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66 \ | endif
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67
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68
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69 " Source the user-specified syntax highlighting file
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70 if exists("mysyntaxfile") && filereadable(expand(mysyntaxfile))
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71 execute "source " . mysyntaxfile
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72 endif
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73
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74 " Restore 'cpoptions'
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75 let &cpo = s:cpo_save
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76 unlet s:cpo_save
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