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1 " Vim syntax file
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2 "
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1698
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3 " Language: NATURAL
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4 " Version: 2.1.0.3
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5 " Maintainer: Marko von Oppen <marko@von-oppen.com>
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6 " Last Changed: 2008-07-29 01:40:52
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7 " Support: http://www.von-oppen.com/
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7
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8
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9 " For version 5.x: Clear all syntax items
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10 " For version 6.x: Quit when this syntax file was already loaded
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11 if v:version < 600
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12 syntax clear
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13 set iskeyword+=-,*,#,+,_,/
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14 elseif exists("b:current_syntax")
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15 finish
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16 else
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17 setlocal iskeyword+=-,*,#,+,_,/
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18 endif
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19
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20 " NATURAL is case insensitive
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21 syntax case ignore
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22
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23 " preprocessor
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24 syn keyword naturalInclude include nextgroup=naturalObjName skipwhite
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25
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26 " define data
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27 syn keyword naturalKeyword define data end-define
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28 syn keyword naturalKeyword independent global parameter local redefine view
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29 syn keyword naturalKeyword const[ant] init initial
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30
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31 " loops
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32 syn keyword naturalLoop read end-read end-work find end-find histogram end-histogram
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33 syn keyword naturalLoop end-all sort end-sort sorted descending ascending
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34 syn keyword naturalRepeat repeat end-repeat while until for step end-for
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35 syn keyword naturalKeyword in file with field starting from ending at thru by isn where
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36 syn keyword naturalError on error end-error
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37 syn keyword naturalKeyword accept reject end-enddata number unique retain as release
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38 syn keyword naturalKeyword start end-start break end-break physical page top sequence
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39 syn keyword naturalKeyword end-toppage end-endpage end-endfile before processing
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40 syn keyword naturalKeyword end-before
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41
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42 " conditionals
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43 syn keyword naturalConditional if then else end-if end-norec
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44 syn keyword naturalConditional decide end-decide value when condition none any
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45
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46 " assignment / calculation
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47 syn keyword naturalKeyword reset assign move left right justified compress to into edited
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48 syn keyword naturalKeyword add subtract multiply divide compute name
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49 syn keyword naturalKeyword all giving remainder rounded leaving space numeric
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50 syn keyword naturalKeyword examine full replace giving separate delimiter modified
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51 syn keyword naturalKeyword suspend identical suppress
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52
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53 " program flow
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54 syn keyword naturalFlow callnat fetch return enter escape bottom top stack formatted
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55 syn keyword naturalFlow command call
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56 syn keyword naturalflow end-subroutine routine
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57
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58 " file operations
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59 syn keyword naturalKeyword update store get delete end transaction work once close
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60
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61 " other keywords
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62 syn keyword naturalKeyword first every of no record[s] found ignore immediate
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63 syn keyword naturalKeyword set settime key control stop terminate
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64
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65 " in-/output
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66 syn keyword naturalKeyword write display input reinput notitle nohdr map newpage
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67 syn keyword naturalKeyword alarm text help eject index window base size
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68 syn keyword naturalKeyword format printer skip lines
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69
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70 " functions
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71 syn keyword naturalKeyword abs atn cos exp frac int log sgn sin sqrt tan val old
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72 syn keyword naturalKeyword pos
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73
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74 " report mode keywords
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75 syn keyword naturalRMKeyword same loop obtain indexed do doend
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76
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77 " Subroutine name
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78 syn keyword naturalFlow perform subroutine nextgroup=naturalFunction skipwhite
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79 syn match naturalFunction "\<[a-z][-_a-z0-9]*\>"
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80
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81 syn keyword naturalFlow using nextgroup=naturalKeyword,naturalObjName skipwhite
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82 syn match naturalObjName "\<[a-z][-_a-z0-9]\{,7}\>"
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83
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84 " Labels
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85 syn match naturalLabel "\<[+#a-z][-_#a-z0-9]*\."
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86 syn match naturalRef "\<[+#a-z][-_#a-z0-9]*\>\.\<[+#a-z][*]\=[-_#a-z0-9]*\>"
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87
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88 " mark keyword special handling
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89 syn keyword naturalKeyword mark nextgroup=naturalMark skipwhite
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90 syn match naturalMark "\<\*[a-z][-_#.a-z0-9]*\>"
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91
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92 " System variables
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93 syn match naturalSysVar "\<\*[a-z][-a-z0-9]*\>"
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94
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95 "integer number, or floating point number without a dot.
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96 syn match naturalNumber "\<-\=\d\+\>"
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97 "floating point number, with dot
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98 syn match naturalNumber "\<-\=\d\+\.\d\+\>"
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99 "floating point number, starting with a dot
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100 syn match naturalNumber "\.\d\+"
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101
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102 " Formats in write statement
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103 syn match naturalFormat "\<\d\+[TX]\>"
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104
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105 " String and Character contstants
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106 syn match naturalString "H'\x\+'"
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107 syn region naturalString start=+"+ end=+"+
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108 syn region naturalString start=+'+ end=+'+
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109
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110 " Type definition
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111 syn match naturalAttribute "\<[-a-z][a-z]=[-a-z0-9_\.,]\+\>"
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112 syn match naturalType contained "\<[ABINP]\d\+\(,\d\+\)\=\>"
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113 syn match naturalType contained "\<[CL]\>"
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114
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115 " "TODO" / other comments
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116 syn keyword naturalTodo contained todo test
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117 syn match naturalCommentMark contained "[a-z][^ \t/:|]*\(\s[^ \t/:'"|]\+\)*:\s"he=e-1
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118
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119 " comments
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120 syn region naturalComment start="/\*" end="$" contains=naturalTodo,naturalLineRef,naturalCommentMark
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121 syn region naturalComment start="^\*[ *]" end="$" contains=naturalTodo,naturalLineRef,naturalCommentMark
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122 syn region naturalComment start="^\d\{4} \*[\ \*]"lc=5 end="$" contains=naturalTodo,naturalLineRef,naturalCommentMark
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123 syn match naturalComment "^\*$"
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124 syn match naturalComment "^\d\{4} \*$"lc=5
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125 " /* is legal syntax in parentheses e.g. "#ident(label./*)"
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126 syn region naturalPComment contained start="/\*\s*[^),]" end="$" contains=naturalTodo,naturalLineRef,naturalCommentMark
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127
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128 " operators
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129 syn keyword naturalOperator and or not eq ne gt lt ge le mask scan modified
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130
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131 " constants
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132 syn keyword naturalBoolean true false
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133 syn match naturalLineNo "^\d\{4}"
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134
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135 " identifiers
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136 syn match naturalIdent "\<[+#a-z][-_#a-z0-9]*\>[^\.']"me=e-1
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137 syn match naturalIdent "\<[+#a-z][-_#a-z0-9]*$"
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138 syn match naturalLegalIdent "[+#a-z][-_#a-z0-9]*/[-_#a-z0-9]*"
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139
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140 " parentheses
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141 syn region naturalPar matchgroup=naturalParGui start="(" end=")" contains=naturalLabel,naturalRef,naturalOperator,@naturalConstant,naturalType,naturalSysVar,naturalPar,naturalLineNo,naturalPComment
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142 syn match naturalLineRef "(\d\{4})"
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143
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144 " build syntax groups
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145 syntax cluster naturalConstant contains=naturalString,naturalNumber,naturalAttribute,naturalBoolean
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146
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147 " folding
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148 if v:version >= 600
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149 set foldignore=*
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150 endif
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151
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152
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153 if v:version >= 508 || !exists("did_natural_syntax_inits")
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154 if v:version < 508
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155 let did_natural_syntax_inits = 1
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156 command -nargs=+ HiLink hi link <args>
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157 else
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158 command -nargs=+ HiLink hi def link <args>
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159 endif
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160 " The default methods for highlighting. Can be overridden later
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161
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162 " Constants
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163 HiLink naturalFormat Constant
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164 HiLink naturalAttribute Constant
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165 HiLink naturalNumber Number
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166 HiLink naturalString String
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167 HiLink naturalBoolean Boolean
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168
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169 " All kinds of keywords
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170 HiLink naturalConditional Conditional
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171 HiLink naturalRepeat Repeat
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172 HiLink naturalLoop Repeat
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173 HiLink naturalFlow Keyword
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174 HiLink naturalError Keyword
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175 HiLink naturalKeyword Keyword
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176 HiLink naturalOperator Operator
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177 HiLink naturalParGui Operator
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178
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179 " Labels
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180 HiLink naturalLabel Label
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181 HiLink naturalRefLabel Label
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182
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183 " Comments
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184 HiLink naturalPComment Comment
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185 HiLink naturalComment Comment
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186 HiLink naturalTodo Todo
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187 HiLink naturalCommentMark PreProc
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188
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189 HiLink naturalInclude Include
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190 HiLink naturalSysVar Identifier
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191 HiLink naturalLineNo LineNr
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192 HiLink naturalLineRef Error
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193 HiLink naturalSpecial Special
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194 HiLink naturalComKey Todo
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195
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196 " illegal things
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197 HiLink naturalRMKeyword Error
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198 HiLink naturalLegalIdent Error
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199
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200 HiLink naturalType Type
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201 HiLink naturalFunction Function
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202 HiLink naturalObjName PreProc
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203
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204 delcommand HiLink
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205 endif
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206
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207 let b:current_syntax = "natural"
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208
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209 " vim:set ts=8 sw=8 noet ft=vim:
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