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1 " Vim syntax file
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2 " Language: grads (GrADS scripts)
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3 " Maintainer: Stefan Fronzek (sfronzek at gmx dot net)
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4 " Last change: 13 Feb 2004
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5
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6 " Grid Analysis and Display System (GrADS); http://grads.iges.org/grads
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7 " This syntax file defines highlighting for only very few features of
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8 " the GrADS scripting language.
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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 syntax 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 " GrADS is entirely case-insensitive.
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19 syn case ignore
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20
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21 " The keywords
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22
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23 syn keyword gradsStatement if else endif break exit return
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24 syn keyword gradsStatement while endwhile say prompt pull function
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25 syn keyword gradsStatement subwrd sublin substr read write close
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26 " String
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27
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28 syn region gradsString start=+'+ end=+'+
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29
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30 " Integer number
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31 syn match gradsNumber "[+-]\=\<[0-9]\+\>"
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32
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33 " Operator
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34
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35 "syn keyword gradsOperator | ! % & != >=
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36 "syn match gradsOperator "[^\.]not[^a-zA-Z]"
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37
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38 " Variables
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39
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40 syn keyword gradsFixVariables lat lon lev result rec rc
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41 syn match gradsglobalVariables "_[a-zA-Z][a-zA-Z0-9]*"
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42 syn match gradsVariables "[a-zA-Z][a-zA-Z0-9]*"
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43 syn match gradsConst "#[A-Z][A-Z_]+"
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44
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45 " Comments
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46
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47 syn match gradsComment "\*.*"
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48
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49 " Typical Typos
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50
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51 " for C programmers:
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52 " syn match gradsTypos "=="
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53 " syn match gradsTypos "!="
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54
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55 " Define the default highlighting.
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56 " For version 5.7 and earlier: only when not done already
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57 " For version 5.8 and later: only when an item doesn't hgs highlighting+yet
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58 if version >= 508 || !exists("did_gs_syn_inits")
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59 if version < 508
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60 let did_gs_syn_inits = 1
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61 command -nargs=+ HiLink hi link <args>
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62 else
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63 command -nargs=+ HiLink hi def link <args>
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64 endif
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65
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66 HiLink gradsStatement Statement
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67
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68 HiLink gradsString String
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69 HiLink gradsNumber Number
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70
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71 HiLink gradsFixVariables Special
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72 HiLink gradsVariables Identifier
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73 HiLink gradsglobalVariables Special
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74 HiLink gradsConst Special
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75
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76 HiLink gradsClassMethods Function
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77
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78 HiLink gradsOperator Operator
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79 HiLink gradsComment Comment
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80
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81 HiLink gradsTypos Error
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82
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83 delcommand HiLink
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84 endif
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85
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86 let b:current_syntax = "grads"
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