1 |
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2 |
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3 |
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4 | (function(mod) {
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5 | if (typeof exports == "object" && typeof module == "object")
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6 | mod(require("../../lib/codemirror"));
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7 | else if (typeof define == "function" && define.amd)
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8 | define(["../../lib/codemirror"], mod);
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9 | else
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10 | mod(CodeMirror);
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11 | })(function(CodeMirror) {
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12 | "use strict";
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13 |
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14 | CodeMirror.defineMode("elm", function() {
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15 |
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16 | function switchState(source, setState, f)
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17 | {
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18 | setState(f);
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19 | return f(source, setState);
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20 | }
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21 |
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22 | var lowerRE = /[a-z]/;
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23 | var upperRE = /[A-Z]/;
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24 | var innerRE = /[a-zA-Z0-9_]/;
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25 |
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26 | var digitRE = /[0-9]/;
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27 | var hexRE = /[0-9A-Fa-f]/;
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28 | var symbolRE = /[-&*+.\\/<>=?^|:]/;
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29 | var specialRE = /[(),[\]{}]/;
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30 | var spacesRE = /[ \v\f]/;
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31 |
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32 | function normal()
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33 | {
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34 | return function(source, setState)
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35 | {
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36 | if (source.eatWhile(spacesRE))
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37 | {
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38 | return null;
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39 | }
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40 |
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41 | var char = source.next();
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42 |
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43 | if (specialRE.test(char))
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44 | {
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45 | return (char === '{' && source.eat('-'))
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46 | ? switchState(source, setState, chompMultiComment(1))
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47 | : (char === '[' && source.match('glsl|'))
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48 | ? switchState(source, setState, chompGlsl)
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49 | : 'builtin';
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50 | }
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51 |
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52 | if (char === '\'')
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53 | {
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54 | return switchState(source, setState, chompChar);
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55 | }
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56 |
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57 | if (char === '"')
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58 | {
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59 | return source.eat('"')
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60 | ? source.eat('"')
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61 | ? switchState(source, setState, chompMultiString)
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62 | : 'string'
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63 | : switchState(source, setState, chompSingleString);
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64 | }
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65 |
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66 | if (upperRE.test(char))
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67 | {
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68 | source.eatWhile(innerRE);
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69 | return 'variable-2';
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70 | }
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71 |
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72 | if (lowerRE.test(char))
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73 | {
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74 | var isDef = source.pos === 1;
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75 | source.eatWhile(innerRE);
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76 | return isDef ? "def" : "variable";
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77 | }
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78 |
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79 | if (digitRE.test(char))
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80 | {
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81 | if (char === '0')
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82 | {
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83 | if (source.eat(/[xX]/))
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84 | {
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85 | source.eatWhile(hexRE);
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86 | return "number";
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87 | }
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88 | }
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89 | else
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90 | {
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91 | source.eatWhile(digitRE);
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92 | }
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93 | if (source.eat('.'))
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94 | {
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95 | source.eatWhile(digitRE);
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96 | }
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97 | if (source.eat(/[eE]/))
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98 | {
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99 | source.eat(/[-+]/);
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100 | source.eatWhile(digitRE);
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101 | }
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102 | return "number";
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103 | }
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104 |
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105 | if (symbolRE.test(char))
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106 | {
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107 | if (char === '-' && source.eat('-'))
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108 | {
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109 | source.skipToEnd();
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110 | return "comment";
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111 | }
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112 | source.eatWhile(symbolRE);
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113 | return "keyword";
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114 | }
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115 |
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116 | if (char === '_')
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117 | {
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118 | return "keyword";
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119 | }
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120 |
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121 | return "error";
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122 | }
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123 | }
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124 |
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125 | function chompMultiComment(nest)
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126 | {
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127 | if (nest == 0)
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128 | {
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129 | return normal();
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130 | }
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131 | return function(source, setState)
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132 | {
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133 | while (!source.eol())
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134 | {
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135 | var char = source.next();
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136 | if (char == '{' && source.eat('-'))
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137 | {
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138 | ++nest;
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139 | }
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140 | else if (char == '-' && source.eat('}'))
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141 | {
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142 | --nest;
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143 | if (nest === 0)
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144 | {
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145 | setState(normal());
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146 | return 'comment';
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147 | }
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148 | }
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149 | }
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150 | setState(chompMultiComment(nest));
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151 | return 'comment';
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152 | }
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153 | }
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154 |
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155 | function chompMultiString(source, setState)
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156 | {
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157 | while (!source.eol())
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158 | {
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159 | var char = source.next();
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160 | if (char === '"' && source.eat('"') && source.eat('"'))
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161 | {
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162 | setState(normal());
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163 | return 'string';
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164 | }
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165 | }
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166 | return 'string';
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167 | }
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168 |
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169 | function chompSingleString(source, setState)
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170 | {
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171 | while (source.skipTo('\\"')) { source.next(); source.next(); }
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172 | if (source.skipTo('"'))
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173 | {
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174 | source.next();
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175 | setState(normal());
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176 | return 'string';
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177 | }
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178 | source.skipToEnd();
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179 | setState(normal());
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180 | return 'error';
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181 | }
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182 |
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183 | function chompChar(source, setState)
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184 | {
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185 | while (source.skipTo("\\'")) { source.next(); source.next(); }
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186 | if (source.skipTo("'"))
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187 | {
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188 | source.next();
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189 | setState(normal());
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190 | return 'string';
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191 | }
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192 | source.skipToEnd();
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193 | setState(normal());
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194 | return 'error';
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195 | }
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196 |
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197 | function chompGlsl(source, setState)
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198 | {
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199 | while (!source.eol())
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200 | {
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201 | var char = source.next();
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202 | if (char === '|' && source.eat(']'))
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203 | {
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204 | setState(normal());
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205 | return 'string';
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206 | }
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207 | }
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208 | return 'string';
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209 | }
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210 |
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211 | var wellKnownWords = {
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212 | case: 1,
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213 | of: 1,
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214 | as: 1,
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215 | if: 1,
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216 | then: 1,
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217 | else: 1,
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218 | let: 1,
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219 | in: 1,
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220 | type: 1,
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221 | alias: 1,
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222 | module: 1,
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223 | where: 1,
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224 | import: 1,
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225 | exposing: 1,
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226 | port: 1
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227 | };
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228 |
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229 | return {
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230 | startState: function () { return { f: normal() }; },
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231 | copyState: function (s) { return { f: s.f }; },
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232 |
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233 | token: function(stream, state) {
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234 | var type = state.f(stream, function(s) { state.f = s; });
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235 | var word = stream.current();
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236 | return (wellKnownWords.hasOwnProperty(word)) ? 'keyword' : type;
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237 | }
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238 | };
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239 |
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240 | });
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241 |
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242 | CodeMirror.defineMIME("text/x-elm", "elm");
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243 | });
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