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1 " Vim syntax file
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2 " Language: FORTH
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3 " Maintainer: Christian V. J. Brüssow <cvjb@cvjb.de>
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4 " Last Change: Son 22 Jun 2003 20:42:55 CEST
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5 " Filenames: *.fs,*.ft
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6 " URL: http://www.cvjb.de/comp/vim/forth.vim
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7
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8 " $Id$
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9
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10 " The list of keywords is incomplete, compared with the offical ANS
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11 " wordlist. If you use this language, please improve it, and send me
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12 " the patches.
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13
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14 " Many Thanks to...
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15 "
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16 " 2003-05-10:
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17 " Andrew Gaul <andrew at gaul.org> send me a patch for
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18 " forthOperators.
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19 "
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20 " 2003-04-03:
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21 " Ron Aaron <ron at ronware.org> made updates for an
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22 " improved Win32Forth support.
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23 "
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24 " 2002-04-22:
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25 " Charles Shattuck <charley at forth.org> helped me to settle up with the
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26 " binary and hex number highlighting.
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27 "
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28 " 2002-04-20:
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29 " Charles Shattuck <charley at forth.org> send me some code for correctly
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30 " highlighting char and [char] followed by an opening paren. He also added
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31 " some words for operators, conditionals, and definitions; and added the
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32 " highlighting for s" and c".
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33 "
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34 " 2000-03-28:
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35 " John Providenza <john at probo.com> made improvements for the
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36 " highlighting of strings, and added the code for highlighting hex numbers.
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37 "
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38
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39
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40 " For version 5.x: Clear all syntax items
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41 " For version 6.x: Quit when a syntax file was already loaded
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42 if version < 600
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43 syntax clear
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44 elseif exists("b:current_syntax")
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45 finish
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46 endif
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47
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48 " Synchronization method
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49 syn sync ccomment maxlines=200
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50
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51 " I use gforth, so I set this to case ignore
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52 syn case ignore
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53
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54 " Some special, non-FORTH keywords
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55 syn keyword forthTodo contained TODO FIXME XXX
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56 syn match forthTodo contained 'Copyright\(\s([Cc])\)\=\(\s[0-9]\{2,4}\)\='
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57
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58 " Characters allowed in keywords
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59 " I don't know if 128-255 are allowed in ANS-FORHT
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60 if version >= 600
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61 setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
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62 else
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63 set iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
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64 endif
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65
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66
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67 " Keywords
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68
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69 " basic mathematical and logical operators
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70 syn keyword forthOperators + - * / MOD /MOD NEGATE ABS MIN MAX
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71 syn keyword forthOperators AND OR XOR NOT INVERT 2* 2/ 1+ 1- 2+ 2- 8*
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72 syn keyword forthOperators M+ */ */MOD M* UM* M*/ UM/MOD FM/MOD SM/REM
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73 syn keyword forthOperators D+ D- DNEGATE DABS DMIN DMAX
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74 syn keyword forthOperators F+ F- F* F/ FNEGATE FABS FMAX FMIN FLOOR FROUND
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75 syn keyword forthOperators F** FSQRT FEXP FEXPM1 FLN FLNP1 FLOG FALOG FSIN
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76 syn keyword forthOperators FCOS FSINCOS FTAN FASIN FACOS FATAN FATAN2 FSINH
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77 syn keyword forthOperators FCOSH FTANH FASINH FACOSH FATANH
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78 syn keyword forthOperators 0< 0<= 0<> 0= 0> 0>= < <= <> = > >=
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79 syn keyword forthOperators ?NEGATE ?DNEGATE
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80
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81 " stack manipulations
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82 syn keyword forthStack DROP NIP DUP OVER TUCK SWAP ROT -ROT ?DUP PICK ROLL
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83 syn keyword forthStack 2DROP 2NIP 2DUP 2OVER 2TUCK 2SWAP 2ROT
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84 syn keyword forthStack 3DUP 4DUP
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85 syn keyword forthRStack >R R> R@ RDROP 2>R 2R> 2R@ 2RDROP
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86 syn keyword forthFStack FDROP FNIP FDUP FOVER FTUCK FSWAP FROT
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87
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88 " stack pointer manipulations
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89 syn keyword forthSP SP@ SP! FP@ FP! RP@ RP! LP@ LP!
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90
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91 " address operations
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92 syn keyword forthMemory @ ! +! C@ C! 2@ 2! F@ F! SF@ SF! DF@ DF!
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93 syn keyword forthAdrArith CHARS CHAR+ CELLS CELL+ CELL ALIGN ALIGNED FLOATS
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94 syn keyword forthAdrArith FLOAT+ FLOAT FALIGN FALIGNED SFLOATS SFLOAT+
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95 syn keyword forthAdrArith SFALIGN SFALIGNED DFLOATS DFLOAT+ DFALIGN DFALIGNED
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96 syn keyword forthAdrArith MAXALIGN MAXALIGNED CFALIGN CFALIGNED
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97 syn keyword forthAdrArith ADDRESS-UNIT-BITS ALLOT ALLOCATE HERE
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98 syn keyword forthMemBlks MOVE ERASE CMOVE CMOVE> FILL BLANK
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99
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100 " conditionals
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101 syn keyword forthCond IF ELSE ENDIF THEN CASE OF ENDOF ENDCASE ?DUP-IF
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102 syn keyword forthCond ?DUP-0=-IF AHEAD CS-PICK CS-ROLL CATCH THROW WITHIN
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103
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104 " iterations
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105 syn keyword forthLoop BEGIN WHILE REPEAT UNTIL AGAIN
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106 syn keyword forthLoop ?DO LOOP I J K +DO U+DO -DO U-DO DO +LOOP -LOOP
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107 syn keyword forthLoop UNLOOP LEAVE ?LEAVE EXIT DONE FOR NEXT
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108
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109 " new words
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110 syn match forthColonDef '\<:m\?\s*[^ \t]\+\>'
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111 syn keyword forthEndOfColonDef ; ;M ;m
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112 syn keyword forthDefine CONSTANT 2CONSTANT FCONSTANT VARIABLE 2VARIABLE CREATE
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113 syn keyword forthDefine USER VALUE TO DEFER IS DOES> IMMEDIATE COMPILE-ONLY
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114 syn keyword forthDefine COMPILE RESTRICT INTERPRET POSTPONE EXECUTE LITERAL
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115 syn keyword forthDefine CREATE-INTERPRET/COMPILE INTERPRETATION> <INTERPRETATION
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116 syn keyword forthDefine COMPILATION> <COMPILATION ] LASTXT COMP' POSTPONE,
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117 syn keyword forthDefine FIND-NAME NAME>INT NAME?INT NAME>COMP NAME>STRING STATE
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118 syn keyword forthDefine C; CVARIABLE
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119 syn match forthDefine "\[COMP']"
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120 syn match forthDefine "'"
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121 syn match forthDefine '\<\[\>'
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122 syn match forthDefine "\[']"
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123 syn match forthDefine '\[COMPILE]'
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124 syn match forthClassDef '\<:class\s*[^ \t]\+\>'
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125 syn match forthObjectDef '\<:object\s*[^ \t]\+\>'
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126 syn keyword forthEndOfClassDef ';class'
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127 syn keyword forthEndOfObjectDef ';object'
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128
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129 " debugging
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130 syn keyword forthDebug PRINTDEBUGDATA PRINTDEBUGLINE
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131 syn match forthDebug "\<\~\~\>"
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132
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133 " Assembler
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134 syn keyword forthAssembler ASSEMBLER CODE END-CODE ;CODE FLUSH-ICACHE C,
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135
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136 " basic character operations
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137 syn keyword forthCharOps (.) CHAR EXPECT FIND WORD TYPE -TRAILING EMIT KEY
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138 syn keyword forthCharOps KEY? TIB CR
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139 " recognize 'char (' or '[char] (' correctly, so it doesn't
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140 " highlight everything after the paren as a comment till a closing ')'
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141 syn match forthCharOps '\<char\s\S\s'
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142 syn match forthCharOps '\<\[char\]\s\S\s'
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143 syn region forthCharOps start=+."\s+ skip=+\\"+ end=+"+
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144
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145 " char-number conversion
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146 syn keyword forthConversion <# # #> #S (NUMBER) (NUMBER?) CONVERT D>F D>S DIGIT
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147 syn keyword forthConversion DPL F>D HLD HOLD NUMBER S>D SIGN >NUMBER
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148
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149 " interptreter, wordbook, compiler
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150 syn keyword forthForth (LOCAL) BYE COLD ABORT >BODY >NEXT >LINK CFA >VIEW HERE
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151 syn keyword forthForth PAD WORDS VIEW VIEW> N>LINK NAME> LINK> L>NAME FORGET
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152 syn keyword forthForth BODY>
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153 syn region forthForth start=+ABORT"\s+ skip=+\\"+ end=+"+
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154
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155 " vocabularies
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156 syn keyword forthVocs ONLY FORTH ALSO ROOT SEAL VOCS ORDER CONTEXT #VOCS
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157 syn keyword forthVocs VOCABULARY DEFINITIONS
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158
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159 " numbers
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160 syn keyword forthMath DECIMAL HEX BASE
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161 syn match forthInteger '\<-\=[0-9.]*[0-9.]\+\>'
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162 " recognize hex and binary numbers, the '$' and '%' notation is for gforth
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163 syn match forthInteger '\<\$\x*\x\+\>' " *1* --- dont't mess
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164 syn match forthInteger '\<\x*\d\x*\>' " *2* --- this order!
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165 syn match forthInteger '\<%[0-1]*[0-1]\+\>'
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166 syn match forthFloat '\<-\=\d*[.]\=\d\+[Ee]\d\+\>'
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167
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168 " Strings
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169 syn region forthString start=+\.*\"+ end=+"+ end=+$+
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170 " XXX
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171 syn region forthString start=+s\"+ end=+"+ end=+$+
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172 syn region forthString start=+c\"+ end=+"+ end=+$+
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173
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174 " Comments
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175 syn match forthComment '\\\s.*$' contains=forthTodo
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176 syn region forthComment start='\\S\s' end='.*' contains=forthTodo
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177 syn match forthComment '\.(\s[^)]*)' contains=forthTodo
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178 syn region forthComment start='(\s' skip='\\)' end=')' contains=forthTodo
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179 syn region forthComment start='/\*' end='\*/' contains=forthTodo
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180 "syn match forthComment '(\s[^\-]*\-\-[^\-]*)' contains=forthTodo
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181
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182 " Include files
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183 syn match forthInclude '^INCLUDE\s\+\k\+'
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184 syn match forthInclude '^fload\s\+'
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185 syn match forthInclude '^needs\s\+'
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186
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187 " Define the default highlighting.
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188 " For version 5.7 and earlier: only when not done already
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189 " For version 5.8 and later: only when an item doesn't have highlighting yet
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190 if version >= 508 || !exists("did_forth_syn_inits")
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191 if version < 508
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192 let did_forth_syn_inits = 1
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193 command -nargs=+ HiLink hi link <args>
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194 else
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195 command -nargs=+ HiLink hi def link <args>
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196 endif
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197
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198 " The default methods for highlighting. Can be overriden later.
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199 HiLink forthTodo Todo
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200 HiLink forthOperators Operator
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201 HiLink forthMath Number
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202 HiLink forthInteger Number
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203 HiLink forthFloat Float
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204 HiLink forthStack Special
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205 HiLink forthRstack Special
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206 HiLink forthFStack Special
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207 HiLink forthSP Special
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208 HiLink forthMemory Function
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209 HiLink forthAdrArith Function
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210 HiLink forthMemBlks Function
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211 HiLink forthCond Conditional
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212 HiLink forthLoop Repeat
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213 HiLink forthColonDef Define
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214 HiLink forthEndOfColonDef Define
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215 HiLink forthDefine Define
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216 HiLink forthDebug Debug
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217 HiLink forthAssembler Include
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218 HiLink forthCharOps Character
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219 HiLink forthConversion String
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220 HiLink forthForth Statement
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221 HiLink forthVocs Statement
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222 HiLink forthString String
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223 HiLink forthComment Comment
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224 HiLink forthClassDef Define
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225 HiLink forthEndOfClassDef Define
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226 HiLink forthObjectDef Define
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227 HiLink forthEndOfObjectDef Define
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228 HiLink forthInclude Include
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229
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230 delcommand HiLink
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231 endif
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232
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233 let b:current_syntax = "forth"
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234
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235 " vim:ts=8:sw=4:nocindent:smartindent:
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