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1 " Vim syntax file
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2 " Language: SML
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3 " Filenames: *.sml *.sig
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659
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4 " Maintainers: Markus Mottl <markus.mottl@gmail.com>
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20
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5 " Fabrizio Zeno Cornelli <zeno@filibusta.crema.unimi.it>
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659
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6 " URL: http://www.ocaml.info/vim/syntax/sml.vim
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1120
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7 " Last Change: 2006 Oct 23 - Fixed character highlighting bug (MM)
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8 " 2002 Jun 02 - Fixed small typo (MM)
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20
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9 " 2001 Nov 20 - Fixed small highlighting bug with modules (MM)
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7
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10
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11 " For version 5.x: Clear all syntax items
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12 " For version 6.x: Quit when a syntax file was already loaded
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13 if version < 600
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14 syntax clear
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15 elseif exists("b:current_syntax")
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16 finish
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17 endif
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18
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19 " SML is case sensitive.
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20 syn case match
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21
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22 " lowercase identifier - the standard way to match
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23 syn match smlLCIdentifier /\<\(\l\|_\)\(\w\|'\)*\>/
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24
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25 syn match smlKeyChar "|"
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26
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27 " Errors
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28 syn match smlBraceErr "}"
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29 syn match smlBrackErr "\]"
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30 syn match smlParenErr ")"
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31 syn match smlCommentErr "\*)"
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32 syn match smlThenErr "\<then\>"
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33
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34 " Error-highlighting of "end" without synchronization:
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35 " as keyword or as error (default)
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36 if exists("sml_noend_error")
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37 syn match smlKeyword "\<end\>"
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38 else
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39 syn match smlEndErr "\<end\>"
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40 endif
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41
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42 " Some convenient clusters
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43 syn cluster smlAllErrs contains=smlBraceErr,smlBrackErr,smlParenErr,smlCommentErr,smlEndErr,smlThenErr
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44
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45 syn cluster smlAENoParen contains=smlBraceErr,smlBrackErr,smlCommentErr,smlEndErr,smlThenErr
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46
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47 syn cluster smlContained contains=smlTodo,smlPreDef,smlModParam,smlModParam1,smlPreMPRestr,smlMPRestr,smlMPRestr1,smlMPRestr2,smlMPRestr3,smlModRHS,smlFuncWith,smlFuncStruct,smlModTypeRestr,smlModTRWith,smlWith,smlWithRest,smlModType,smlFullMod
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48
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49
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50 " Enclosing delimiters
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51 syn region smlEncl transparent matchgroup=smlKeyword start="(" matchgroup=smlKeyword end=")" contains=ALLBUT,@smlContained,smlParenErr
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52 syn region smlEncl transparent matchgroup=smlKeyword start="{" matchgroup=smlKeyword end="}" contains=ALLBUT,@smlContained,smlBraceErr
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53 syn region smlEncl transparent matchgroup=smlKeyword start="\[" matchgroup=smlKeyword end="\]" contains=ALLBUT,@smlContained,smlBrackErr
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54 syn region smlEncl transparent matchgroup=smlKeyword start="#\[" matchgroup=smlKeyword end="\]" contains=ALLBUT,@smlContained,smlBrackErr
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55
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56
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57 " Comments
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58 syn region smlComment start="(\*" end="\*)" contains=smlComment,smlTodo
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59 syn keyword smlTodo contained TODO FIXME XXX
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60
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61
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62 " let
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63 syn region smlEnd matchgroup=smlKeyword start="\<let\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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64
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65 " local
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66 syn region smlEnd matchgroup=smlKeyword start="\<local\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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67
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68 " abstype
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69 syn region smlNone matchgroup=smlKeyword start="\<abstype\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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70
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71 " begin
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72 syn region smlEnd matchgroup=smlKeyword start="\<begin\>" matchgroup=smlKeyword end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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73
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74 " if
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75 syn region smlNone matchgroup=smlKeyword start="\<if\>" matchgroup=smlKeyword end="\<then\>" contains=ALLBUT,@smlContained,smlThenErr
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76
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77
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78 "" Modules
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79
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80 " "struct"
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81 syn region smlStruct matchgroup=smlModule start="\<struct\>" matchgroup=smlModule end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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82
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83 " "sig"
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84 syn region smlSig matchgroup=smlModule start="\<sig\>" matchgroup=smlModule end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr,smlModule
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85 syn region smlModSpec matchgroup=smlKeyword start="\<structure\>" matchgroup=smlModule end="\<\u\(\w\|'\)*\>" contained contains=@smlAllErrs,smlComment skipwhite skipempty nextgroup=smlModTRWith,smlMPRestr
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86
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87 " "open"
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88 syn region smlNone matchgroup=smlKeyword start="\<open\>" matchgroup=smlModule end="\<\u\(\w\|'\)*\(\.\u\(\w\|'\)*\)*\>" contains=@smlAllErrs,smlComment
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89
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90 " "structure" - somewhat complicated stuff ;-)
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91 syn region smlModule matchgroup=smlKeyword start="\<\(structure\|functor\)\>" matchgroup=smlModule end="\<\u\(\w\|'\)*\>" contains=@smlAllErrs,smlComment skipwhite skipempty nextgroup=smlPreDef
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92 syn region smlPreDef start="."me=e-1 matchgroup=smlKeyword end="\l\|="me=e-1 contained contains=@smlAllErrs,smlComment,smlModParam,smlModTypeRestr,smlModTRWith nextgroup=smlModPreRHS
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93 syn region smlModParam start="([^*]" end=")" contained contains=@smlAENoParen,smlModParam1
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94 syn match smlModParam1 "\<\u\(\w\|'\)*\>" contained skipwhite skipempty nextgroup=smlPreMPRestr
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95
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96 syn region smlPreMPRestr start="."me=e-1 end=")"me=e-1 contained contains=@smlAllErrs,smlComment,smlMPRestr,smlModTypeRestr
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97
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98 syn region smlMPRestr start=":" end="."me=e-1 contained contains=@smlComment skipwhite skipempty nextgroup=smlMPRestr1,smlMPRestr2,smlMPRestr3
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99 syn region smlMPRestr1 matchgroup=smlModule start="\ssig\s\=" matchgroup=smlModule end="\<end\>" contained contains=ALLBUT,@smlContained,smlEndErr,smlModule
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100 syn region smlMPRestr2 start="\sfunctor\(\s\|(\)\="me=e-1 matchgroup=smlKeyword end="->" contained contains=@smlAllErrs,smlComment,smlModParam skipwhite skipempty nextgroup=smlFuncWith
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101 syn match smlMPRestr3 "\w\(\w\|'\)*\(\.\w\(\w\|'\)*\)*" contained
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102 syn match smlModPreRHS "=" contained skipwhite skipempty nextgroup=smlModParam,smlFullMod
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103 syn region smlModRHS start="." end=".\w\|([^*]"me=e-2 contained contains=smlComment skipwhite skipempty nextgroup=smlModParam,smlFullMod
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104 syn match smlFullMod "\<\u\(\w\|'\)*\(\.\u\(\w\|'\)*\)*" contained skipwhite skipempty nextgroup=smlFuncWith
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105
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106 syn region smlFuncWith start="([^*]"me=e-1 end=")" contained contains=smlComment,smlWith,smlFuncStruct
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107 syn region smlFuncStruct matchgroup=smlModule start="[^a-zA-Z]struct\>"hs=s+1 matchgroup=smlModule end="\<end\>" contains=ALLBUT,@smlContained,smlEndErr
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108
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109 syn match smlModTypeRestr "\<\w\(\w\|'\)*\(\.\w\(\w\|'\)*\)*\>" contained
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110 syn region smlModTRWith start=":\s*("hs=s+1 end=")" contained contains=@smlAENoParen,smlWith
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111 syn match smlWith "\<\(\u\(\w\|'\)*\.\)*\w\(\w\|'\)*\>" contained skipwhite skipempty nextgroup=smlWithRest
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112 syn region smlWithRest start="[^)]" end=")"me=e-1 contained contains=ALLBUT,@smlContained
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113
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114 " "signature"
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115 syn region smlKeyword start="\<signature\>" matchgroup=smlModule end="\<\w\(\w\|'\)*\>" contains=smlComment skipwhite skipempty nextgroup=smlMTDef
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116 syn match smlMTDef "=\s*\w\(\w\|'\)*\>"hs=s+1,me=s
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117
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118 syn keyword smlKeyword and andalso case
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119 syn keyword smlKeyword datatype else eqtype
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120 syn keyword smlKeyword exception fn fun handle
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121 syn keyword smlKeyword in infix infixl infixr
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122 syn keyword smlKeyword match nonfix of orelse
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123 syn keyword smlKeyword raise handle type
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124 syn keyword smlKeyword val where while with withtype
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125
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126 syn keyword smlType bool char exn int list option
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127 syn keyword smlType real string unit
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128
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129 syn keyword smlOperator div mod not or quot rem
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130
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131 syn keyword smlBoolean true false
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132 syn match smlConstructor "(\s*)"
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133 syn match smlConstructor "\[\s*\]"
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134 syn match smlConstructor "#\[\s*\]"
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135 syn match smlConstructor "\u\(\w\|'\)*\>"
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136
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137 " Module prefix
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138 syn match smlModPath "\u\(\w\|'\)*\."he=e-1
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139
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1120
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140 syn match smlCharacter +#"\\""\|#"."\|#"\\\d\d\d"+
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141 syn match smlCharErr +#"\\\d\d"\|#"\\\d"+
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142 syn region smlString start=+"+ skip=+\\\\\|\\"+ end=+"+
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143
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144 syn match smlFunDef "=>"
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145 syn match smlRefAssign ":="
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146 syn match smlTopStop ";;"
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147 syn match smlOperator "\^"
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148 syn match smlOperator "::"
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149 syn match smlAnyVar "\<_\>"
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150 syn match smlKeyChar "!"
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151 syn match smlKeyChar ";"
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152 syn match smlKeyChar "\*"
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153 syn match smlKeyChar "="
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154
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155 syn match smlNumber "\<-\=\d\+\>"
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156 syn match smlNumber "\<-\=0[x|X]\x\+\>"
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157 syn match smlReal "\<-\=\d\+\.\d*\([eE][-+]\=\d\+\)\=[fl]\=\>"
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158
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159 " Synchronization
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160 syn sync minlines=20
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161 syn sync maxlines=500
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162
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163 syn sync match smlEndSync grouphere smlEnd "\<begin\>"
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164 syn sync match smlEndSync groupthere smlEnd "\<end\>"
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165 syn sync match smlStructSync grouphere smlStruct "\<struct\>"
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166 syn sync match smlStructSync groupthere smlStruct "\<end\>"
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167 syn sync match smlSigSync grouphere smlSig "\<sig\>"
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168 syn sync match smlSigSync groupthere smlSig "\<end\>"
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169
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170 " Define the default highlighting.
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171 " For version 5.7 and earlier: only when not done already
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172 " For version 5.8 and later: only when an item doesn't have highlighting yet
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173 if version >= 508 || !exists("did_sml_syntax_inits")
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174 if version < 508
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175 let did_sml_syntax_inits = 1
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176 command -nargs=+ HiLink hi link <args>
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177 else
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178 command -nargs=+ HiLink hi def link <args>
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179 endif
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180
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181 HiLink smlBraceErr Error
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182 HiLink smlBrackErr Error
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183 HiLink smlParenErr Error
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184
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185 HiLink smlCommentErr Error
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186
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187 HiLink smlEndErr Error
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188 HiLink smlThenErr Error
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189
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190 HiLink smlCharErr Error
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191
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192 HiLink smlComment Comment
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193
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194 HiLink smlModPath Include
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195 HiLink smlModule Include
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196 HiLink smlModParam1 Include
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197 HiLink smlModType Include
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198 HiLink smlMPRestr3 Include
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199 HiLink smlFullMod Include
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200 HiLink smlModTypeRestr Include
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201 HiLink smlWith Include
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202 HiLink smlMTDef Include
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203
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204 HiLink smlConstructor Constant
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205
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206 HiLink smlModPreRHS Keyword
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207 HiLink smlMPRestr2 Keyword
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208 HiLink smlKeyword Keyword
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209 HiLink smlFunDef Keyword
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210 HiLink smlRefAssign Keyword
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211 HiLink smlKeyChar Keyword
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212 HiLink smlAnyVar Keyword
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213 HiLink smlTopStop Keyword
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214 HiLink smlOperator Keyword
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215
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216 HiLink smlBoolean Boolean
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217 HiLink smlCharacter Character
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218 HiLink smlNumber Number
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219 HiLink smlReal Float
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220 HiLink smlString String
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221 HiLink smlType Type
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222 HiLink smlTodo Todo
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223 HiLink smlEncl Keyword
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224
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225 delcommand HiLink
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226 endif
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227
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228 let b:current_syntax = "sml"
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229
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230 " vim: ts=8
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