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1 " Vim syntax file
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2 " Language: Dot
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3 " Filenames: *.dot
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4 " Maintainer: Markus Mottl <markus.mottl@gmail.com>
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5 " URL: http://www.ocaml.info/vim/syntax/dot.vim
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6 " Last Change: 2006 Feb 05
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7 " 2001 May 04 - initial version
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8
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9 " For version 5.x: Clear all syntax items
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10 " For version 6.x: Quit when a syntax file was already loaded
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11 if version < 600
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12 syntax clear
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13 elseif exists("b:current_syntax")
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14 finish
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15 endif
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16
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17 " Errors
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18 syn match dotParErr ")"
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19 syn match dotBrackErr "]"
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20 syn match dotBraceErr "}"
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21
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22 " Enclosing delimiters
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23 syn region dotEncl transparent matchgroup=dotParEncl start="(" matchgroup=dotParEncl end=")" contains=ALLBUT,dotParErr
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24 syn region dotEncl transparent matchgroup=dotBrackEncl start="\[" matchgroup=dotBrackEncl end="\]" contains=ALLBUT,dotBrackErr
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25 syn region dotEncl transparent matchgroup=dotBraceEncl start="{" matchgroup=dotBraceEncl end="}" contains=ALLBUT,dotBraceErr
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26
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27 " Comments
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28 syn region dotComment start="//" end="$" contains=dotComment,dotTodo
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29 syn region dotComment start="/\*" end="\*/" contains=dotComment,dotTodo
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30 syn keyword dotTodo contained TODO FIXME XXX
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31
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32 " Strings
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33 syn region dotString start=+"+ skip=+\\\\\|\\"+ end=+"+
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34
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35 " General keywords
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36 syn keyword dotKeyword digraph node edge subgraph
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37
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38 " Graph attributes
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39 syn keyword dotType center layers margin mclimit name nodesep nslimit
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40 syn keyword dotType ordering page pagedir rank rankdir ranksep ratio
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41 syn keyword dotType rotate size
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42
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43 " Node attributes
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44 syn keyword dotType distortion fillcolor fontcolor fontname fontsize
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45 syn keyword dotType height layer orientation peripheries regular
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46 syn keyword dotType shape shapefile sides skew width
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47
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48 " Edge attributes
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49 syn keyword dotType arrowhead arrowsize arrowtail constraint decorateP
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50 syn keyword dotType dir headclip headlabel labelangle labeldistance
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51 syn keyword dotType labelfontcolor labelfontname labelfontsize
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52 syn keyword dotType minlen port_label_distance samehead sametail
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53 syn keyword dotType tailclip taillabel weight
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54
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55 " Shared attributes (graphs, nodes, edges)
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56 syn keyword dotType color
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57
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58 " Shared attributes (graphs and edges)
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59 syn keyword dotType bgcolor label URL
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60
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61 " Shared attributes (nodes and edges)
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62 syn keyword dotType fontcolor fontname fontsize layer style
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63
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64 " Special chars
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65 syn match dotKeyChar "="
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66 syn match dotKeyChar ";"
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67 syn match dotKeyChar "->"
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68
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69 " Identifier
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70 syn match dotIdentifier /\<\w\+\>/
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71
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72 " Synchronization
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73 syn sync minlines=50
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74 syn sync maxlines=500
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75
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76 " Define the default highlighting.
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77 " For version 5.7 and earlier: only when not done already
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78 " For version 5.8 and later: only when an item doesn't have highlighting yet
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79 if version >= 508 || !exists("did_dot_syntax_inits")
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80 if version < 508
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81 let did_dot_syntax_inits = 1
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82 command -nargs=+ HiLink hi link <args>
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83 else
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84 command -nargs=+ HiLink hi def link <args>
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85 endif
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86
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87 HiLink dotParErr Error
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88 HiLink dotBraceErr Error
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89 HiLink dotBrackErr Error
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90
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91 HiLink dotComment Comment
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92 HiLink dotTodo Todo
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93
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94 HiLink dotParEncl Keyword
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95 HiLink dotBrackEncl Keyword
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96 HiLink dotBraceEncl Keyword
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97
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98 HiLink dotKeyword Keyword
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99 HiLink dotType Type
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100 HiLink dotKeyChar Keyword
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101
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102 HiLink dotString String
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103 HiLink dotIdentifier Identifier
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104
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105 delcommand HiLink
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106 endif
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107
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108 let b:current_syntax = "dot"
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109
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110 " vim: ts=8
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