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1 " Vim syntax file
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2 " Language: Rexx
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3 " Maintainer: Thomas Geulig <geulig@nentec.de>
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4 " Last Change: 2005 Dez 9, added some <http://www.ooRexx.org>-coloring,
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5 " line comments, do *over*, messages, directives,
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6 " highlighting classes, methods, routines and requires
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7 " Rony G. Flatscher <rony.flatscher@wu-wien.ac.at>
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8 "
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9 " URL: http://www.geulig.de/vim/rexx.vim
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10 "
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11 " Special Thanks to Dan Sharp <dwsharp@hotmail.com> and Rony G. Flatscher
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12 " <Rony.Flatscher@wu-wien.ac.at> for comments and additions
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13
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14 " For version 5.x: Clear all syntax items
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15 " For version 6.x: Quit when a syntax file was already loaded
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16 if version < 600
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17 syntax clear
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18 elseif exists("b:current_syntax")
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19 finish
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20 endif
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21
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22 syn case ignore
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23
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24 " add to valid identifier chars
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25 setlocal iskeyword+=.
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26 setlocal iskeyword+=!
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27 setlocal iskeyword+=?
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28
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29 " ---rgf, position important: must be before comments etc. !
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30 syn match rexxOperator "[-=|\/\\\+\*\[\],;<>&\~]"
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31
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32 syn match rexxIdentifier "\<[a-zA-Z\!\?_]\([a-zA-Z0-9._?!]\)*\>"
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33 syn match rexxEnvironmentSymbol "\<\.\+\([a-zA-Z0-9._?!]\)*\>"
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34
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35
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36 " A Keyword is the first symbol in a clause. A clause begins at the start
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37 " of a line or after a semicolon. THEN, ELSE, OTHERWISE, and colons are always
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38 " followed by an implied semicolon.
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39 syn match rexxClause "\(^\|;\|:\|then \|else \|otherwise \)\s*\w\+" contains=ALLBUT,rexxParse2,rexxRaise2
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40
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41
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42 " Considered keywords when used together in a phrase and begin a clause
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43 syn match rexxParse "\<parse\s*\(\(upper\|lower\|caseless\)\s*\)\=\(arg\|linein\|pull\|source\|var\|\<value\>\|version\)\>"
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44 syn match rexxParse2 "\<with\>" contained containedin=rexxParse
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45
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46
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47 syn match rexxKeyword contained "\<numeric \(digits\|form \(scientific\|engineering\|value\)\|fuzz\)\>"
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48 syn match rexxKeyword contained "\<\(address\|trace\)\( value\)\=\>"
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49 syn match rexxKeyword contained "\<procedure\(\s*expose\)\=\>"
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50 syn match rexxKeyword contained "\<do\>\(\s*forever\)\=\>"
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51 syn match rexxKeyword contained "\<use\>\s*\<arg\>"
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52
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53 " Another keyword phrase, separated to aid highlighting in rexxFunction
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54 syn match rexxKeyword contained "\<signal\(\s*\(on\|off\)\s*\(any\|error\|failure\|halt\|lostdigits\|nomethod\|nostring\|notready\|novalue\|syntax\|user\s*\k*\)\(\s\+name\)\=\)\=\>"
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55 syn match rexxKeyword2 contained "\<call\(\s*\(on\|off\)\s*\(any\|error\|failure\|halt\|notready\|user\s*\k*\)\(\s\+name\)\=\)\=\>"
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56
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57
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58 " Considered keywords when they begin a clause
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59 syn match rexxKeyword contained "\<\(arg\|do\|drop\|end\|exit\|expose\|forward\|if\|interpret\|iterate\|leave\|nop\)\>"
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60 syn match rexxKeyword contained "\<\(options\|pull\|push\|queue\|raise\|reply\|return\|say\|select\|trace\)\>"
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61
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62 " Conditional phrases
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63 syn match rexxConditional "\(^\s*\| \)\(to\|by\|for\|until\|while\|then\|when\|otherwise\|else\|over\)\( \|\s*$\)"
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64 syn match rexxConditional contained "\<\(to\|by\|for\|until\|while\|then\|when\|otherwise\|else\|over\)\>"
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65
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66 " must be after Conditional phrases!
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67 syn match rexxKeyword ".*\<\(then\|else\)\s*\<do\>"
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68
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69 " Raise statement
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70 syn match rexxRaise "\(^\|;\|:\)\s\+\<raise\>\s*\<\(propagate\|error\|failure\|syntax\|user\)\>\="
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71 syn match rexxRaise2 "\<\(additional\|array\|description\|exit\|return\)\>" contained containedin=rexxRaise
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72
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73 " Forward statement keywords
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74 syn match rexxForward "\(^\|;\|:\)\<forward\>\s*"
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75 syn match rexxForward2 "\<\(arguments\|array\|continue\|message\|class\|to\)\>" contained containedin=rexxForward
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76
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77 " Functions/Procedures
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78 syn match rexxFunction "\<\w*\(/\*\s*\*/\)*("me=e-1 contains=rexxComment,rexxConditional,rexxKeyword,rexxIdentifier
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79 syn match rexxFunction "\<\<[a-zA-Z\!\?_]\([a-zA-Z0-9._?!]\)*\>("me=e-1
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80 syn match rexxFunction "\<call\s\+\k\+\>" contains=rexxKeyword2
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81 syn match rexxFunction "[()]"
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82
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83 " String constants
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84 syn region rexxString start=+"+ skip=+""+ end=+"\(x\|b\)\=+ oneline
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85 syn region rexxString start=+'+ skip=+''+ end=+'\(x\|b\)\=+ oneline
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86
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87 " Catch errors caused by wrong parenthesis
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88 syn region rexxParen transparent start='(' end=')' contains=ALLBUT,rexxParenError,rexxTodo,rexxLabel,rexxKeyword
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89 syn match rexxParenError ")"
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90 syn match rexxInParen "[\\[\\]{}]"
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91
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92 " Comments
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93 syn region rexxComment start="/\*" end="\*/" contains=rexxTodo,rexxComment
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94 syn match rexxCommentError "\*/"
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95 syn match rexxLineComment /--.*/
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96
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97 syn keyword rexxTodo contained TODO FIXME XXX
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98
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99
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100 " ooRexx messages
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101 syn region rexxMessageOperator start="\(\~\|\~\~\)" end="\(\S\|\s\)"me=e-1
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102 syn match rexxMessage "\(\~\|\~\~\)\s*\<\.*[a-zA-Z]\([a-zA-Z0-9._?!]\)*\>" contains=rexxMessageOperator
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103
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104 " Highlight User Labels
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105 syn match rexxLabel "^\s*\k*\s*:"me=e-1
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106
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107 syn match rexxLineContinue ",\ze\s*\(--.*\|\/\*.*\)*$"
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108 " the following is necessary, otherwise three consecutive dashes will cause it to highlight the first one
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109 syn match rexxLineContinue "-\ze\(\s+--.*\|\s*\/\*.*\)*$"
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110
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111 " Special Variables
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112 syn keyword rexxSpecialVariable sigl rc result self super
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113
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114 " Constants
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115 syn keyword rexxConst .true .false .nil
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116
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117 " ooRexx builtin classes, first define dot to be o.k. in keywords
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118 syn keyword rexxBuiltinClass .object .class .method .message
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119 syn keyword rexxBuiltinClass .monitor .alarm
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120 syn keyword rexxBuiltinClass .stem .stream .string
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121 syn keyword rexxBuiltinClass .mutablebuffer
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122 syn keyword rexxBuiltinClass .array .list .queue .directory .table .set
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123 syn keyword rexxBuiltinClass .relation .bag .supplier .regularExpressions
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124
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125 " Windows-only classes
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126 syn keyword rexxBuiltinClass .OLEObject .MenuObject .WindowsClipboard .WindowsEventLog
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127 syn keyword rexxBuiltinClass .WindowsManager .WindowObject .WindowsProgramManager
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128
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129
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130 " ooRexx directives, ---rgf location important, otherwise directives in top of
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131 " file not matched!
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132 syn region rexxClass start="::\s*class\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
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133 syn region rexxMethod start="::\s*method\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
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134 syn region rexxRequires start="::\s*requires\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
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135 syn region rexxRoutine start="::\s*routine\s*"ms=e+1 end="\ze\(\s\|;\|$\)"
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136
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137 syn region rexxDirective start="\(^\|;\)\s*::\s*\w\+" end="\($\|;\)" contains=rexxString,rexxComment,rexxLineComment,rexxClass,rexxMethod,rexxRoutine,rexxRequires keepend
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138
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139
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140
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141 if !exists("rexx_minlines")
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142 " let rexx_minlines = 10
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143 let rexx_minlines = 500
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144 endif
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145 exec "syn sync ccomment rexxComment minlines=" . rexx_minlines
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146
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147 " Define the default highlighting.
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148 " For version 5.7 and earlier: only when not done already
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149 " For version 5.8 and later: only when an item doesn't have highlighting yet
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150 if version >= 508 || !exists("did_rexx_syn_inits")
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151 if version < 508
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152 let did_rexx_syn_inits = 1
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153 command -nargs=+ HiLink hi link <args>
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154 else
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155 command -nargs=+ HiLink hi def link <args>
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156 endif
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157
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158 HiLink rexxLabel Function
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159 HiLink rexxCharacter Character
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160 HiLink rexxParenError rexxError
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161 HiLink rexxInParen rexxError
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162 HiLink rexxCommentError rexxError
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163 HiLink rexxError Error
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164 HiLink rexxKeyword Statement
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165 HiLink rexxKeyword2 rexxKeyword
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166 HiLink rexxFunction Function
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167 HiLink rexxString String
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168 HiLink rexxComment Comment
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169 HiLink rexxTodo Todo
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170 HiLink rexxSpecialVariable Special
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171 HiLink rexxConditional rexxKeyword
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172
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173 HiLink rexxOperator Operator
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174 HiLink rexxMessageOperator rexxOperator
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175 HiLink rexxLineComment RexxComment
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176
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177 HiLink rexxLineContinue WildMenu
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178
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179 HiLink rexxDirective rexxKeyword
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180 HiLink rexxClass Type
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181 HiLink rexxMethod rexxFunction
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182 HiLink rexxRequires Include
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183 HiLink rexxRoutine rexxFunction
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184
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185 HiLink rexxConst Constant
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186 HiLink rexxTypeSpecifier Type
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187 HiLink rexxBuiltinClass rexxTypeSpecifier
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188
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189 HiLink rexxEnvironmentSymbol rexxConst
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190 HiLink rexxMessage rexxFunction
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191
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192 HiLink rexxParse rexxKeyword
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193 HiLink rexxParse2 rexxParse
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194
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195 HiLink rexxRaise rexxKeyword
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196 HiLink rexxRaise2 rexxRaise
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197
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198 HiLink rexxForward rexxKeyword
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199 HiLink rexxForward2 rexxForward
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200
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201 delcommand HiLink
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202 endif
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203
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204 let b:current_syntax = "rexx"
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205
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206 "vim: ts=8
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