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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: Sa 09 Feb 2008 13:27:29 CET
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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: forth.vim,v 1.11 2008/02/09 13:17:01 bruessow Exp $
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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 " Before sending me patches, please download the newest version of this file
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15 " from http://www.cvjb.de/comp/vim/forth.vim or http://www.vim.org/ (search
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16 " for forth.vim).
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17
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18 " Many Thanks to...
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19 "
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20 " 2008-02-09:
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21 " Shawn K. Quinn <sjquinn at speakeasy dot net> send a big patch with
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22 " new words commonly used in Forth programs or defined by GNU Forth.
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23 "
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24 " 2007-07-11:
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25 " Benjamin Krill <ben at codiert dot org> send me a patch
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26 " to highlight space errors.
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27 " You can toggle this feature on through setting the
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28 " flag forth_space_errors in you vimrc. If you have switched it on,
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29 " you can turn off highlighting of trailing spaces in comments by
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30 " setting forth_no_trail_space_error in your vimrc. If you do not want
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31 " the highlighting of a tabulator following a space in comments, you
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32 " can turn this off by setting forth_no_tab_space_error.
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33 "
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34 " 2006-05-25:
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35 " Bill McCarthy <WJMc@...> and Ilya Sher <ilya-vim@...>
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36 " Who found a bug in the ccomment line in 2004!!!
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37 " I'm really very sorry, that it has taken two years to fix that
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38 " in the offical version of this file. Shame on me.
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39 " I think my face will be red the next ten years...
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40 "
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41 " 2006-05-21:
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42 " Thomas E. Vaughan <tevaugha at ball dot com> send me a patch
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43 " for the parenthesis comment word, so words with a trailing
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44 " parenthesis will not start the highlighting for such comments.
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45 "
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46 " 2003-05-10:
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47 " Andrew Gaul <andrew at gaul.org> send me a patch for
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48 " forthOperators.
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49 "
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50 " 2003-04-03:
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51 " Ron Aaron <ron at ronware dot org> made updates for an
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52 " improved Win32Forth support.
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53 "
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54 " 2002-04-22:
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55 " Charles Shattuck <charley at forth dot org> helped me to settle up with the
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56 " binary and hex number highlighting.
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57 "
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58 " 2002-04-20:
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59 " Charles Shattuck <charley at forth dot org> send me some code for correctly
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60 " highlighting char and [char] followed by an opening paren. He also added
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61 " some words for operators, conditionals, and definitions; and added the
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62 " highlighting for s" and c".
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63 "
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64 " 2000-03-28:
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65 " John Providenza <john at probo dot com> made improvements for the
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66 " highlighting of strings, and added the code for highlighting hex numbers.
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67 "
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68
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69
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70 " For version 5.x: Clear all syntax items
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71 " For version 6.x: Quit when a syntax file was already loaded
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72 if version < 600
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73 syntax clear
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74 elseif exists("b:current_syntax")
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75 finish
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76 endif
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77
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78 " Synchronization method
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79 syn sync ccomment
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80 syn sync maxlines=200
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81
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82 " I use gforth, so I set this to case ignore
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83 syn case ignore
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84
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85 " Some special, non-FORTH keywords
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86 syn keyword forthTodo contained TODO FIXME XXX
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87 syn match forthTodo contained 'Copyright\(\s([Cc])\)\=\(\s[0-9]\{2,4}\)\='
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88
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89 " Characters allowed in keywords
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90 " I don't know if 128-255 are allowed in ANS-FORTH
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91 if version >= 600
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92 setlocal iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
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93 else
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94 set iskeyword=!,@,33-35,%,$,38-64,A-Z,91-96,a-z,123-126,128-255
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95 endif
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96
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97 " when wanted, highlight trailing white space
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98 if exists("forth_space_errors")
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99 if !exists("forth_no_trail_space_error")
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100 syn match forthSpaceError display excludenl "\s\+$"
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101 endif
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102 if !exists("forth_no_tab_space_error")
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103 syn match forthSpaceError display " \+\t"me=e-1
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104 endif
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105 endif
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106
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107 " Keywords
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108
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109 " basic mathematical and logical operators
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110 syn keyword forthOperators + - * / MOD /MOD NEGATE ABS MIN MAX
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111 syn keyword forthOperators AND OR XOR NOT LSHIFT RSHIFT INVERT 2* 2/ 1+
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112 syn keyword forthOperators 1- 2+ 2- 8* UNDER+
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113 syn keyword forthOperators M+ */ */MOD M* UM* M*/ UM/MOD FM/MOD SM/REM
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114 syn keyword forthOperators D+ D- DNEGATE DABS DMIN DMAX D2* D2/
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115 syn keyword forthOperators F+ F- F* F/ FNEGATE FABS FMAX FMIN FLOOR FROUND
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116 syn keyword forthOperators F** FSQRT FEXP FEXPM1 FLN FLNP1 FLOG FALOG FSIN
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117 syn keyword forthOperators FCOS FSINCOS FTAN FASIN FACOS FATAN FATAN2 FSINH
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118 syn keyword forthOperators FCOSH FTANH FASINH FACOSH FATANH F2* F2/ 1/F
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119 syn keyword forthOperators F~REL F~ABS F~
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120 syn keyword forthOperators 0< 0<= 0<> 0= 0> 0>= < <= <> = > >= U< U<=
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121 syn keyword forthOperators U> U>= D0< D0<= D0<> D0= D0> D0>= D< D<= D<>
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122 syn keyword forthOperators D= D> D>= DU< DU<= DU> DU>= WITHIN ?NEGATE
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123 syn keyword forthOperators ?DNEGATE
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124
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125 " stack manipulations
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126 syn keyword forthStack DROP NIP DUP OVER TUCK SWAP ROT -ROT ?DUP PICK ROLL
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127 syn keyword forthStack 2DROP 2NIP 2DUP 2OVER 2TUCK 2SWAP 2ROT 2-ROT
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128 syn keyword forthStack 3DUP 4DUP 5DUP 3DROP 4DROP 5DROP 8DROP 4SWAP 4ROT
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129 syn keyword forthStack 4-ROT 4TUCK 8SWAP 8DUP
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130 syn keyword forthRStack >R R> R@ RDROP 2>R 2R> 2R@ 2RDROP
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131 syn keyword forthRstack 4>R 4R> 4R@ 4RDROP
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132 syn keyword forthFStack FDROP FNIP FDUP FOVER FTUCK FSWAP FROT
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133
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134 " stack pointer manipulations
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135 syn keyword forthSP SP@ SP! FP@ FP! RP@ RP! LP@ LP!
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136
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137 " address operations
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138 syn keyword forthMemory @ ! +! C@ C! 2@ 2! F@ F! SF@ SF! DF@ DF!
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139 syn keyword forthAdrArith CHARS CHAR+ CELLS CELL+ CELL ALIGN ALIGNED FLOATS
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140 syn keyword forthAdrArith FLOAT+ FLOAT FALIGN FALIGNED SFLOATS SFLOAT+
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141 syn keyword forthAdrArith SFALIGN SFALIGNED DFLOATS DFLOAT+ DFALIGN DFALIGNED
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142 syn keyword forthAdrArith MAXALIGN MAXALIGNED CFALIGN CFALIGNED
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143 syn keyword forthAdrArith ADDRESS-UNIT-BITS ALLOT ALLOCATE HERE
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144 syn keyword forthMemBlks MOVE ERASE CMOVE CMOVE> FILL BLANK
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145
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146 " conditionals
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147 syn keyword forthCond IF ELSE ENDIF THEN CASE OF ENDOF ENDCASE ?DUP-IF
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148 syn keyword forthCond ?DUP-0=-IF AHEAD CS-PICK CS-ROLL CATCH THROW WITHIN
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149
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150 " iterations
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151 syn keyword forthLoop BEGIN WHILE REPEAT UNTIL AGAIN
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152 syn keyword forthLoop ?DO LOOP I J K +DO U+DO -DO U-DO DO +LOOP -LOOP
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153 syn keyword forthLoop UNLOOP LEAVE ?LEAVE EXIT DONE FOR NEXT
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154
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155 " new words
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156 syn match forthClassDef '\<:class\s*[^ \t]\+\>'
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157 syn match forthObjectDef '\<:object\s*[^ \t]\+\>'
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158 syn match forthColonDef '\<:m\?\s*[^ \t]\+\>'
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159 syn keyword forthEndOfColonDef ; ;M ;m
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160 syn keyword forthEndOfClassDef ;class
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161 syn keyword forthEndOfObjectDef ;object
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162 syn keyword forthDefine CONSTANT 2CONSTANT FCONSTANT VARIABLE 2VARIABLE
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163 syn keyword forthDefine FVARIABLE CREATE USER VALUE TO DEFER IS DOES> IMMEDIATE
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164 syn keyword forthDefine COMPILE-ONLY COMPILE RESTRICT INTERPRET POSTPONE EXECUTE
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165 syn keyword forthDefine LITERAL CREATE-INTERPRET/COMPILE INTERPRETATION>
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166 syn keyword forthDefine <INTERPRETATION COMPILATION> <COMPILATION ] LASTXT
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167 syn keyword forthDefine COMP' POSTPONE, FIND-NAME NAME>INT NAME?INT NAME>COMP
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168 syn keyword forthDefine NAME>STRING STATE C; CVARIABLE
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169 syn keyword forthDefine , 2, F, C,
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170 syn match forthDefine "\[IFDEF]"
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171 syn match forthDefine "\[IFUNDEF]"
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172 syn match forthDefine "\[THEN]"
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173 syn match forthDefine "\[ENDIF]"
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174 syn match forthDefine "\[ELSE]"
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175 syn match forthDefine "\[?DO]"
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176 syn match forthDefine "\[DO]"
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177 syn match forthDefine "\[LOOP]"
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178 syn match forthDefine "\[+LOOP]"
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179 syn match forthDefine "\[NEXT]"
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180 syn match forthDefine "\[BEGIN]"
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181 syn match forthDefine "\[UNTIL]"
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182 syn match forthDefine "\[AGAIN]"
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183 syn match forthDefine "\[WHILE]"
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184 syn match forthDefine "\[REPEAT]"
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185 syn match forthDefine "\[COMP']"
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186 syn match forthDefine "'"
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187 syn match forthDefine '\<\[\>'
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188 syn match forthDefine "\[']"
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189 syn match forthDefine '\[COMPILE]'
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190
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191 " debugging
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192 syn keyword forthDebug PRINTDEBUGDATA PRINTDEBUGLINE
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193 syn match forthDebug "\<\~\~\>"
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194
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195 " Assembler
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196 syn keyword forthAssembler ASSEMBLER CODE END-CODE ;CODE FLUSH-ICACHE C,
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197
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198 " basic character operations
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199 syn keyword forthCharOps (.) CHAR EXPECT FIND WORD TYPE -TRAILING EMIT KEY
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200 syn keyword forthCharOps KEY? TIB CR
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201 " recognize 'char (' or '[char] (' correctly, so it doesn't
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202 " highlight everything after the paren as a comment till a closing ')'
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203 syn match forthCharOps '\<char\s\S\s'
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204 syn match forthCharOps '\<\[char\]\s\S\s'
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205 syn region forthCharOps start=+."\s+ skip=+\\"+ end=+"+
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206
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207 " char-number conversion
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208 syn keyword forthConversion <<# <# # #> #>> #S (NUMBER) (NUMBER?) CONVERT D>F
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209 syn keyword forthConversion D>S DIGIT DPL F>D HLD HOLD NUMBER S>D SIGN >NUMBER
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210 syn keyword forthConversion F>S S>F
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211
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212 " interptreter, wordbook, compiler
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213 syn keyword forthForth (LOCAL) BYE COLD ABORT >BODY >NEXT >LINK CFA >VIEW HERE
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214 syn keyword forthForth PAD WORDS VIEW VIEW> N>LINK NAME> LINK> L>NAME FORGET
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215 syn keyword forthForth BODY> ASSERT( ASSERT0( ASSERT1( ASSERT2( ASSERT3( )
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216 syn region forthForth start=+ABORT"\s+ skip=+\\"+ end=+"+
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217
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218 " vocabularies
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219 syn keyword forthVocs ONLY FORTH ALSO ROOT SEAL VOCS ORDER CONTEXT #VOCS
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220 syn keyword forthVocs VOCABULARY DEFINITIONS
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221
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222 " File keywords
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223 syn keyword forthFileMode R/O R/W W/O BIN
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224 syn keyword forthFileWords OPEN-FILE CREATE-FILE CLOSE-FILE DELETE-FILE
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225 syn keyword forthFileWords RENAME-FILE READ-FILE READ-LINE KEY-FILE
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226 syn keyword forthFileWords KEY?-FILE WRITE-FILE WRITE-LINE EMIT-FILE
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227 syn keyword forthFileWords FLUSH-FILE FILE-STATUS FILE-POSITION
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228 syn keyword forthFileWords REPOSITION-FILE FILE-SIZE RESIZE-FILE
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229 syn keyword forthFileWords SLURP-FILE SLURP-FID STDIN STDOUT STDERR
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230 syn keyword forthBlocks OPEN-BLOCKS USE LOAD --> BLOCK-OFFSET
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231 syn keyword forthBlocks GET-BLOCK-FID BLOCK-POSITION LIST SCR BLOCK
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232 syn keyword forthBlocks BUFER EMPTY-BUFFERS EMPTY-BUFFER UPDATE UPDATED?
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233 syn keyword forthBlocks SAVE-BUFFERS SAVE-BUFFER FLUSH THRU +LOAD +THRU
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234 syn keyword forthBlocks BLOCK-INCLUDED
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235
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236 " numbers
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237 syn keyword forthMath DECIMAL HEX BASE
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238 syn match forthInteger '\<-\=[0-9.]*[0-9.]\+\>'
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239 syn match forthInteger '\<&-\=[0-9.]*[0-9.]\+\>'
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240 " recognize hex and binary numbers, the '$' and '%' notation is for gforth
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241 syn match forthInteger '\<\$\x*\x\+\>' " *1* --- dont't mess
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242 syn match forthInteger '\<\x*\d\x*\>' " *2* --- this order!
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243 syn match forthInteger '\<%[0-1]*[0-1]\+\>'
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244 syn match forthFloat '\<-\=\d*[.]\=\d\+[DdEe]\d\+\>'
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245 syn match forthFloat '\<-\=\d*[.]\=\d\+[DdEe][-+]\d\+\>'
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246
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247 " XXX If you find this overkill you can remove it. this has to come after the
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248 " highlighting for numbers otherwise it has no effect.
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249 syn region forthComment start='0 \[if\]' end='\[endif\]' end='\[then\]' contains=forthTodo
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250
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251 " Strings
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252 syn region forthString start=+\.*\"+ end=+"+ end=+$+
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253 " XXX
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254 syn region forthString start=+s\"+ end=+"+ end=+$+
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255 syn region forthString start=+c\"+ end=+"+ end=+$+
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256
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257 " Comments
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258 syn match forthComment '\\\s.*$' contains=forthTodo,forthSpaceError
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259 syn region forthComment start='\\S\s' end='.*' contains=forthTodo,forthSpaceError
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260 syn match forthComment '\.(\s[^)]*)' contains=forthTodo,forthSpaceError
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261 syn region forthComment start='\s(\s' skip='\\)' end=')' contains=forthTodo,forthSpaceError
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262 syn region forthComment start='/\*' end='\*/' contains=forthTodo,forthSpaceError
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263
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264 " Include files
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265 syn match forthInclude '^INCLUDE\s\+\k\+'
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266 syn match forthInclude '^require\s\+\k\+'
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267 syn match forthInclude '^fload\s\+'
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268 syn match forthInclude '^needs\s\+'
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269
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270 " Locals definitions
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271 syn region forthLocals start='{\s' start='{$' end='\s}' end='^}'
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272 syn match forthLocals '{ }' " otherwise, at least two spaces between
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273 syn region forthDeprecated start='locals|' end='|'
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274
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275 " Define the default highlighting.
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276 " For version 5.7 and earlier: only when not done already
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277 " For version 5.8 and later: only when an item doesn't have highlighting yet
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278 if version >= 508 || !exists("did_forth_syn_inits")
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279 if version < 508
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280 let did_forth_syn_inits = 1
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281 command -nargs=+ HiLink hi link <args>
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282 else
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283 command -nargs=+ HiLink hi def link <args>
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284 endif
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285
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286 " The default methods for highlighting. Can be overriden later.
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287 HiLink forthTodo Todo
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288 HiLink forthOperators Operator
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289 HiLink forthMath Number
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290 HiLink forthInteger Number
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291 HiLink forthFloat Float
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292 HiLink forthStack Special
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293 HiLink forthRstack Special
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294 HiLink forthFStack Special
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295 HiLink forthSP Special
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296 HiLink forthMemory Function
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297 HiLink forthAdrArith Function
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298 HiLink forthMemBlks Function
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299 HiLink forthCond Conditional
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300 HiLink forthLoop Repeat
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301 HiLink forthColonDef Define
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302 HiLink forthEndOfColonDef Define
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303 HiLink forthDefine Define
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304 HiLink forthDebug Debug
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305 HiLink forthAssembler Include
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306 HiLink forthCharOps Character
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307 HiLink forthConversion String
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308 HiLink forthForth Statement
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309 HiLink forthVocs Statement
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310 HiLink forthString String
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311 HiLink forthComment Comment
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312 HiLink forthClassDef Define
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313 HiLink forthEndOfClassDef Define
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314 HiLink forthObjectDef Define
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315 HiLink forthEndOfObjectDef Define
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316 HiLink forthInclude Include
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317 HiLink forthLocals Type " nothing else uses type and locals must stand out
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318 HiLink forthDeprecated Error " if you must, change to Type
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319 HiLink forthFileMode Function
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320 HiLink forthFileWords Statement
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321 HiLink forthBlocks Statement
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322 HiLink forthSpaceError Error
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323
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324 delcommand HiLink
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325 endif
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326
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327 let b:current_syntax = "forth"
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328
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329 " vim:ts=8:sw=4:nocindent:smartindent:
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