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1 " Vim syntax file
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2 " Language: Modula 2
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3 " Maintainer: pf@artcom0.north.de (Peter Funk)
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4 " based on original work of Bram Moolenaar <Bram@vim.org>
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5 " Last Change: 2001 May 09
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6
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7 " For version 5.x: Clear all syntax items
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8 " For version 6.x: Quit when a syntax file was already loaded
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9 if version < 600
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10 syntax clear
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11 elseif exists("b:current_syntax")
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12 finish
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13 endif
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14
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15 " Don't ignore case (Modula-2 is case significant). This is the default in vim
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16
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17 " Especially emphasize headers of procedures and modules:
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18 syn region modula2Header matchgroup=modula2Header start="PROCEDURE " end="(" contains=modula2Ident oneline
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19 syn region modula2Header matchgroup=modula2Header start="MODULE " end=";" contains=modula2Ident oneline
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20 syn region modula2Header matchgroup=modula2Header start="BEGIN (\*" end="\*)" contains=modula2Ident oneline
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21 syn region modula2Header matchgroup=modula2Header start="END " end=";" contains=modula2Ident oneline
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22 syn region modula2Keyword start="END" end=";" contains=ALLBUT,modula2Ident oneline
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23
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24 " Some very important keywords which should be emphasized more than others:
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25 syn keyword modula2AttKeyword CONST EXIT HALT RETURN TYPE VAR
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26 " All other keywords in alphabetical order:
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27 syn keyword modula2Keyword AND ARRAY BY CASE DEFINITION DIV DO ELSE
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28 syn keyword modula2Keyword ELSIF EXPORT FOR FROM IF IMPLEMENTATION IMPORT
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29 syn keyword modula2Keyword IN LOOP MOD NOT OF OR POINTER QUALIFIED RECORD
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30 syn keyword modula2Keyword SET THEN TO UNTIL WHILE WITH
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31
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32 syn keyword modula2Type ADDRESS BITSET BOOLEAN CARDINAL CHAR INTEGER REAL WORD
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33 syn keyword modula2StdFunc ABS CAP CHR DEC EXCL INC INCL ORD SIZE TSIZE VAL
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34 syn keyword modula2StdConst FALSE NIL TRUE
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35 " The following may be discussed, since NEW and DISPOSE are some kind of
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36 " special builtin macro functions:
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37 syn keyword modula2StdFunc NEW DISPOSE
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38 " The following types are added later on and may be missing from older
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39 " Modula-2 Compilers (they are at least missing from the original report
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40 " by N.Wirth from March 1980 ;-) Highlighting should apply nevertheless:
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41 syn keyword modula2Type BYTE LONGCARD LONGINT LONGREAL PROC SHORTCARD SHORTINT
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42 " same note applies to min and max, which were also added later to m2:
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43 syn keyword modula2StdFunc MAX MIN
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44 " The underscore was originally disallowed in m2 ids, it was also added later:
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45 syn match modula2Ident " [A-Z,a-z][A-Z,a-z,0-9,_]*" contained
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46
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47 " Comments may be nested in Modula-2:
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48 syn region modula2Comment start="(\*" end="\*)" contains=modula2Comment,modula2Todo
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49 syn keyword modula2Todo contained TODO FIXME XXX
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50
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51 " Strings
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52 syn region modula2String start=+"+ end=+"+
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53 syn region modula2String start="'" end="'"
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54 syn region modula2Set start="{" end="}"
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55
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56 " Define the default highlighting.
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57 " For version 5.7 and earlier: only when not done already
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58 " For version 5.8 and later: only when an item doesn't have highlighting yet
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59 if version >= 508 || !exists("did_modula2_syntax_inits")
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60 if version < 508
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61 let did_modula2_syntax_inits = 1
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62 command -nargs=+ HiLink hi link <args>
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63 else
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64 command -nargs=+ HiLink hi def link <args>
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65 endif
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66
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67 HiLink modula2Ident Identifier
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68 HiLink modula2StdConst Boolean
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69 HiLink modula2Type Identifier
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70 HiLink modula2StdFunc Identifier
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71 HiLink modula2Header Type
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72 HiLink modula2Keyword Statement
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73 HiLink modula2AttKeyword PreProc
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74 HiLink modula2Comment Comment
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75 " The following is just a matter of taste (you want to try this instead):
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76 " hi modula2Comment term=bold ctermfg=DarkBlue guifg=Blue gui=bold
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77 HiLink modula2Todo Todo
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78 HiLink modula2String String
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79 HiLink modula2Set String
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80
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81 delcommand HiLink
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82 endif
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83
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84 let b:current_syntax = "modula2"
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85
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86 " vim: ts=8
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