1 | import _extends from "@babel/runtime/helpers/extends";
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2 | import { factory } from '../utils/factory.js';
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3 | import { isAccessorNode, isConstantNode, isFunctionNode, isOperatorNode, isSymbolNode } from '../utils/is.js';
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4 | import { deepMap } from '../utils/collection.js';
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5 | import { hasOwnProperty } from '../utils/object.js';
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6 | var name = 'parse';
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7 | var dependencies = ['typed', 'numeric', 'config', 'AccessorNode', 'ArrayNode', 'AssignmentNode', 'BlockNode', 'ConditionalNode', 'ConstantNode', 'FunctionAssignmentNode', 'FunctionNode', 'IndexNode', 'ObjectNode', 'OperatorNode', 'ParenthesisNode', 'RangeNode', 'RelationalNode', 'SymbolNode'];
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8 | export var createParse = factory(name, dependencies, _ref => {
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9 | var {
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10 | typed,
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11 | numeric,
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12 | config,
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13 | AccessorNode,
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14 | ArrayNode,
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15 | AssignmentNode,
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16 | BlockNode,
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17 | ConditionalNode,
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18 | ConstantNode,
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19 | FunctionAssignmentNode,
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20 | FunctionNode,
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21 | IndexNode,
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22 | ObjectNode,
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23 | OperatorNode,
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24 | ParenthesisNode,
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25 | RangeNode,
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26 | RelationalNode,
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27 | SymbolNode
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28 | } = _ref;
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29 |
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30 | |
31 |
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32 |
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33 |
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34 |
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35 |
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36 |
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37 |
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38 |
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39 |
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40 |
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41 |
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42 |
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43 |
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44 |
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45 |
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46 |
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47 |
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48 |
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49 |
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50 |
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51 |
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52 |
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53 |
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54 |
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55 |
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56 |
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57 |
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58 |
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59 |
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60 |
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61 |
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62 |
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63 |
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64 |
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65 |
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66 |
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67 |
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68 |
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69 | var parse = typed(name, {
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70 | string: function string(expression) {
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71 | return parseStart(expression, {});
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72 | },
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73 | 'Array | Matrix': function ArrayMatrix(expressions) {
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74 | return parseMultiple(expressions, {});
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75 | },
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76 | 'string, Object': function stringObject(expression, options) {
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77 | var extraNodes = options.nodes !== undefined ? options.nodes : {};
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78 | return parseStart(expression, extraNodes);
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79 | },
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80 | 'Array | Matrix, Object': parseMultiple
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81 | });
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82 |
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83 | function parseMultiple(expressions) {
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84 | var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
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85 | var extraNodes = options.nodes !== undefined ? options.nodes : {};
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86 |
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87 | return deepMap(expressions, function (elem) {
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88 | if (typeof elem !== 'string') throw new TypeError('String expected');
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89 | return parseStart(elem, extraNodes);
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90 | });
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91 | }
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92 |
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93 |
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94 | var TOKENTYPE = {
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95 | NULL: 0,
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96 | DELIMITER: 1,
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97 | NUMBER: 2,
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98 | SYMBOL: 3,
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99 | UNKNOWN: 4
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100 | };
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101 |
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102 | var DELIMITERS = {
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103 | ',': true,
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104 | '(': true,
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105 | ')': true,
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106 | '[': true,
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107 | ']': true,
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108 | '{': true,
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109 | '}': true,
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110 | '"': true,
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111 | '\'': true,
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112 | ';': true,
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113 | '+': true,
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114 | '-': true,
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115 | '*': true,
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116 | '.*': true,
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117 | '/': true,
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118 | './': true,
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119 | '%': true,
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120 | '^': true,
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121 | '.^': true,
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122 | '~': true,
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123 | '!': true,
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124 | '&': true,
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125 | '|': true,
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126 | '^|': true,
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127 | '=': true,
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128 | ':': true,
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129 | '?': true,
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130 | '==': true,
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131 | '!=': true,
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132 | '<': true,
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133 | '>': true,
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134 | '<=': true,
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135 | '>=': true,
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136 | '<<': true,
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137 | '>>': true,
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138 | '>>>': true
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139 | };
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140 |
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141 | var NAMED_DELIMITERS = {
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142 | mod: true,
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143 | to: true,
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144 | in: true,
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145 | and: true,
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146 | xor: true,
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147 | or: true,
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148 | not: true
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149 | };
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150 | var CONSTANTS = {
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151 | true: true,
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152 | false: false,
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153 | null: null,
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154 | undefined: undefined
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155 | };
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156 | var NUMERIC_CONSTANTS = ['NaN', 'Infinity'];
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157 |
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158 | function initialState() {
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159 | return {
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160 | extraNodes: {},
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161 |
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162 | expression: '',
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163 |
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164 | comment: '',
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165 |
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166 | index: 0,
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167 |
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168 | token: '',
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169 |
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170 | tokenType: TOKENTYPE.NULL,
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171 |
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172 | nestingLevel: 0,
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173 |
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174 | conditionalLevel: null
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175 |
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176 | };
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177 | }
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178 | |
179 |
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180 |
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181 |
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182 |
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183 |
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184 |
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185 |
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186 |
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187 |
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188 | function currentString(state, length) {
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189 | return state.expression.substr(state.index, length);
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190 | }
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191 | |
192 |
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193 |
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194 |
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195 |
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196 |
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197 |
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198 |
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199 |
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200 | function currentCharacter(state) {
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201 | return currentString(state, 1);
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202 | }
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203 | |
204 |
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205 |
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206 |
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207 |
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208 |
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209 |
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210 |
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211 | function next(state) {
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212 | state.index++;
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213 | }
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214 | |
215 |
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216 |
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217 |
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218 |
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219 |
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220 |
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221 | function prevCharacter(state) {
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222 | return state.expression.charAt(state.index - 1);
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223 | }
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224 | |
225 |
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226 |
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227 |
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228 |
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229 |
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230 |
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231 | function nextCharacter(state) {
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232 | return state.expression.charAt(state.index + 1);
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233 | }
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234 | |
235 |
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236 |
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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 | function getToken(state) {
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242 | state.tokenType = TOKENTYPE.NULL;
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243 | state.token = '';
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244 | state.comment = '';
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245 |
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246 |
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247 | while (parse.isWhitespace(currentCharacter(state), state.nestingLevel)) {
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248 | next(state);
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249 | }
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250 |
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251 |
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252 | if (currentCharacter(state) === '#') {
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253 | while (currentCharacter(state) !== '\n' && currentCharacter(state) !== '') {
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254 | state.comment += currentCharacter(state);
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255 | next(state);
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256 | }
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257 | }
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258 |
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259 |
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260 | if (currentCharacter(state) === '') {
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261 |
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262 | state.tokenType = TOKENTYPE.DELIMITER;
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263 | return;
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264 | }
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265 |
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266 |
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267 | if (currentCharacter(state) === '\n' && !state.nestingLevel) {
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268 | state.tokenType = TOKENTYPE.DELIMITER;
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269 | state.token = currentCharacter(state);
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270 | next(state);
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271 | return;
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272 | }
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273 |
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274 | var c1 = currentCharacter(state);
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275 | var c2 = currentString(state, 2);
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276 | var c3 = currentString(state, 3);
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277 |
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278 | if (c3.length === 3 && DELIMITERS[c3]) {
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279 | state.tokenType = TOKENTYPE.DELIMITER;
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280 | state.token = c3;
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281 | next(state);
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282 | next(state);
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283 | next(state);
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284 | return;
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285 | }
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286 |
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287 |
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288 | if (c2.length === 2 && DELIMITERS[c2]) {
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289 | state.tokenType = TOKENTYPE.DELIMITER;
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290 | state.token = c2;
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291 | next(state);
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292 | next(state);
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293 | return;
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294 | }
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295 |
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296 |
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297 | if (DELIMITERS[c1]) {
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298 | state.tokenType = TOKENTYPE.DELIMITER;
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299 | state.token = c1;
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300 | next(state);
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301 | return;
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302 | }
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303 |
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304 |
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305 | if (parse.isDigitDot(c1)) {
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306 | state.tokenType = TOKENTYPE.NUMBER;
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307 |
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308 | var _c = currentString(state, 2);
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309 |
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310 | if (_c === '0b' || _c === '0o' || _c === '0x') {
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311 | state.token += currentCharacter(state);
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312 | next(state);
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313 | state.token += currentCharacter(state);
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314 | next(state);
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315 |
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316 | while (parse.isHexDigit(currentCharacter(state))) {
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317 | state.token += currentCharacter(state);
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318 | next(state);
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319 | }
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320 |
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321 | if (currentCharacter(state) === '.') {
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322 |
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323 | state.token += '.';
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324 | next(state);
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325 |
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326 | while (parse.isHexDigit(currentCharacter(state))) {
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327 | state.token += currentCharacter(state);
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328 | next(state);
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329 | }
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330 | } else if (currentCharacter(state) === 'i') {
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331 |
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332 | state.token += 'i';
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333 | next(state);
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334 |
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335 | while (parse.isDigit(currentCharacter(state))) {
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336 | state.token += currentCharacter(state);
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337 | next(state);
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338 | }
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339 | }
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340 |
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341 | return;
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342 | }
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343 |
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344 |
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345 | if (currentCharacter(state) === '.') {
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346 | state.token += currentCharacter(state);
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347 | next(state);
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348 |
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349 | if (!parse.isDigit(currentCharacter(state))) {
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350 |
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351 | state.tokenType = TOKENTYPE.DELIMITER;
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352 | return;
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353 | }
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354 | } else {
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355 | while (parse.isDigit(currentCharacter(state))) {
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356 | state.token += currentCharacter(state);
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357 | next(state);
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358 | }
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359 |
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360 | if (parse.isDecimalMark(currentCharacter(state), nextCharacter(state))) {
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361 | state.token += currentCharacter(state);
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362 | next(state);
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363 | }
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364 | }
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365 |
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366 | while (parse.isDigit(currentCharacter(state))) {
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367 | state.token += currentCharacter(state);
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368 | next(state);
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369 | }
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370 |
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371 |
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372 | if (currentCharacter(state) === 'E' || currentCharacter(state) === 'e') {
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373 | if (parse.isDigit(nextCharacter(state)) || nextCharacter(state) === '-' || nextCharacter(state) === '+') {
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374 | state.token += currentCharacter(state);
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375 | next(state);
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376 |
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377 | if (currentCharacter(state) === '+' || currentCharacter(state) === '-') {
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378 | state.token += currentCharacter(state);
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379 | next(state);
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380 | }
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381 |
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382 |
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383 | if (!parse.isDigit(currentCharacter(state))) {
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384 | throw createSyntaxError(state, 'Digit expected, got "' + currentCharacter(state) + '"');
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385 | }
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386 |
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387 | while (parse.isDigit(currentCharacter(state))) {
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388 | state.token += currentCharacter(state);
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389 | next(state);
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390 | }
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391 |
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392 | if (parse.isDecimalMark(currentCharacter(state), nextCharacter(state))) {
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393 | throw createSyntaxError(state, 'Digit expected, got "' + currentCharacter(state) + '"');
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394 | }
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395 | } else if (nextCharacter(state) === '.') {
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396 | next(state);
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397 | throw createSyntaxError(state, 'Digit expected, got "' + currentCharacter(state) + '"');
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398 | }
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399 | }
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400 |
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401 | return;
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402 | }
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403 |
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404 |
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405 | if (parse.isAlpha(currentCharacter(state), prevCharacter(state), nextCharacter(state))) {
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406 | while (parse.isAlpha(currentCharacter(state), prevCharacter(state), nextCharacter(state)) || parse.isDigit(currentCharacter(state))) {
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407 | state.token += currentCharacter(state);
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408 | next(state);
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409 | }
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410 |
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411 | if (hasOwnProperty(NAMED_DELIMITERS, state.token)) {
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412 | state.tokenType = TOKENTYPE.DELIMITER;
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413 | } else {
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414 | state.tokenType = TOKENTYPE.SYMBOL;
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415 | }
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416 |
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417 | return;
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418 | }
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419 |
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420 |
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421 | state.tokenType = TOKENTYPE.UNKNOWN;
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422 |
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423 | while (currentCharacter(state) !== '') {
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424 | state.token += currentCharacter(state);
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425 | next(state);
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426 | }
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427 |
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428 | throw createSyntaxError(state, 'Syntax error in part "' + state.token + '"');
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429 | }
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430 | |
431 |
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432 |
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433 |
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434 |
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435 | function getTokenSkipNewline(state) {
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436 | do {
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437 | getToken(state);
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438 | } while (state.token === '\n');
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439 |
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440 | }
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441 | |
442 |
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443 |
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444 |
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445 |
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446 |
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447 | function openParams(state) {
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448 | state.nestingLevel++;
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449 | }
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450 | |
451 |
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452 |
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453 |
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454 |
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455 |
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456 | function closeParams(state) {
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457 | state.nestingLevel--;
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458 | }
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459 | |
460 |
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461 |
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462 |
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463 |
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464 |
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465 |
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466 |
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467 |
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468 |
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469 |
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470 |
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471 |
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472 |
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473 |
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474 |
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475 |
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476 |
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477 |
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478 |
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479 | parse.isAlpha = function isAlpha(c, cPrev, cNext) {
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480 | return parse.isValidLatinOrGreek(c) || parse.isValidMathSymbol(c, cNext) || parse.isValidMathSymbol(cPrev, c);
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481 | };
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482 | |
483 |
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484 |
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485 |
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486 |
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487 |
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488 |
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489 | parse.isValidLatinOrGreek = function isValidLatinOrGreek(c) {
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490 | return /^[a-zA-Z_$\u00C0-\u02AF\u0370-\u03FF\u2100-\u214F]$/.test(c);
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491 | };
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492 | |
493 |
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494 |
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495 |
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496 |
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497 |
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498 |
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499 |
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500 |
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501 |
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502 |
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503 |
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504 |
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505 |
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506 |
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507 |
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508 |
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509 | parse.isValidMathSymbol = function isValidMathSymbol(high, low) {
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510 | return /^[\uD835]$/.test(high) && /^[\uDC00-\uDFFF]$/.test(low) && /^[^\uDC55\uDC9D\uDCA0\uDCA1\uDCA3\uDCA4\uDCA7\uDCA8\uDCAD\uDCBA\uDCBC\uDCC4\uDD06\uDD0B\uDD0C\uDD15\uDD1D\uDD3A\uDD3F\uDD45\uDD47-\uDD49\uDD51\uDEA6\uDEA7\uDFCC\uDFCD]$/.test(low);
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511 | };
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512 | |
513 |
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514 |
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515 |
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516 |
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517 |
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518 |
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519 |
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520 | parse.isWhitespace = function isWhitespace(c, nestingLevel) {
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521 |
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522 | return c === ' ' || c === '\t' || c === '\n' && nestingLevel > 0;
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523 | };
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524 | |
525 |
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526 |
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527 |
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528 |
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529 |
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530 |
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531 |
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532 |
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533 | parse.isDecimalMark = function isDecimalMark(c, cNext) {
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534 | return c === '.' && cNext !== '/' && cNext !== '*' && cNext !== '^';
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535 | };
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536 | |
537 |
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538 |
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539 |
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540 |
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541 |
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542 |
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543 | parse.isDigitDot = function isDigitDot(c) {
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544 | return c >= '0' && c <= '9' || c === '.';
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545 | };
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546 | |
547 |
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548 |
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549 |
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550 |
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551 |
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552 |
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553 | parse.isDigit = function isDigit(c) {
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554 | return c >= '0' && c <= '9';
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555 | };
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556 | |
557 |
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558 |
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559 |
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560 |
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561 |
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562 |
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563 | parse.isHexDigit = function isHexDigit(c) {
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564 | return c >= '0' && c <= '9' || c >= 'a' && c <= 'f' || c >= 'A' && c <= 'F';
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565 | };
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566 | |
567 |
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568 |
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569 |
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570 |
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571 |
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572 |
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573 | function parseStart(expression, extraNodes) {
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574 | var state = initialState();
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575 |
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576 | _extends(state, {
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577 | expression,
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578 | extraNodes
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579 | });
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580 |
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581 | getToken(state);
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582 | var node = parseBlock(state);
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583 |
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584 |
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585 | if (state.token !== '') {
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586 | if (state.tokenType === TOKENTYPE.DELIMITER) {
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587 |
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588 |
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589 | throw createError(state, 'Unexpected operator ' + state.token);
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590 | } else {
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591 | throw createSyntaxError(state, 'Unexpected part "' + state.token + '"');
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592 | }
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593 | }
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594 |
|
595 | return node;
|
596 | }
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597 | |
598 |
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599 |
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600 |
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601 |
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602 |
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603 |
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604 |
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605 |
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606 | function parseBlock(state) {
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607 | var node;
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608 | var blocks = [];
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609 | var visible;
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610 |
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611 | if (state.token !== '' && state.token !== '\n' && state.token !== ';') {
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612 | node = parseAssignment(state);
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613 | node.comment = state.comment;
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614 | }
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615 |
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616 |
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617 | while (state.token === '\n' || state.token === ';') {
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618 |
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619 | if (blocks.length === 0 && node) {
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620 | visible = state.token !== ';';
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621 | blocks.push({
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622 | node: node,
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623 | visible: visible
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624 | });
|
625 | }
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626 |
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627 | getToken(state);
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628 |
|
629 | if (state.token !== '\n' && state.token !== ';' && state.token !== '') {
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630 | node = parseAssignment(state);
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631 | node.comment = state.comment;
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632 | visible = state.token !== ';';
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633 | blocks.push({
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634 | node: node,
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635 | visible: visible
|
636 | });
|
637 | }
|
638 | }
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639 |
|
640 | if (blocks.length > 0) {
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641 | return new BlockNode(blocks);
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642 | } else {
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643 | if (!node) {
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644 | node = new ConstantNode(undefined);
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645 | node.comment = state.comment;
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646 | }
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647 |
|
648 | return node;
|
649 | }
|
650 | }
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651 | |
652 |
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653 |
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654 |
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655 |
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656 |
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657 |
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658 |
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659 |
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660 |
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661 | function parseAssignment(state) {
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662 | var name, args, value, valid;
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663 | var node = parseConditional(state);
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664 |
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665 | if (state.token === '=') {
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666 | if (isSymbolNode(node)) {
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667 |
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668 | name = node.name;
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669 | getTokenSkipNewline(state);
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670 | value = parseAssignment(state);
|
671 | return new AssignmentNode(new SymbolNode(name), value);
|
672 | } else if (isAccessorNode(node)) {
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673 |
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674 | getTokenSkipNewline(state);
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675 | value = parseAssignment(state);
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676 | return new AssignmentNode(node.object, node.index, value);
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677 | } else if (isFunctionNode(node) && isSymbolNode(node.fn)) {
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678 |
|
679 | valid = true;
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680 | args = [];
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681 | name = node.name;
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682 | node.args.forEach(function (arg, index) {
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683 | if (isSymbolNode(arg)) {
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684 | args[index] = arg.name;
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685 | } else {
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686 | valid = false;
|
687 | }
|
688 | });
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689 |
|
690 | if (valid) {
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691 | getTokenSkipNewline(state);
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692 | value = parseAssignment(state);
|
693 | return new FunctionAssignmentNode(name, args, value);
|
694 | }
|
695 | }
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696 |
|
697 | throw createSyntaxError(state, 'Invalid left hand side of assignment operator =');
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698 | }
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699 |
|
700 | return node;
|
701 | }
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702 | |
703 |
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704 |
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705 |
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706 |
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707 |
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708 |
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709 |
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710 |
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711 |
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712 |
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713 |
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714 | function parseConditional(state) {
|
715 | var node = parseLogicalOr(state);
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716 |
|
717 | while (state.token === '?') {
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718 |
|
719 |
|
720 |
|
721 | var prev = state.conditionalLevel;
|
722 | state.conditionalLevel = state.nestingLevel;
|
723 | getTokenSkipNewline(state);
|
724 | var condition = node;
|
725 | var trueExpr = parseAssignment(state);
|
726 | if (state.token !== ':') throw createSyntaxError(state, 'False part of conditional expression expected');
|
727 | state.conditionalLevel = null;
|
728 | getTokenSkipNewline(state);
|
729 | var falseExpr = parseAssignment(state);
|
730 |
|
731 | node = new ConditionalNode(condition, trueExpr, falseExpr);
|
732 |
|
733 | state.conditionalLevel = prev;
|
734 | }
|
735 |
|
736 | return node;
|
737 | }
|
738 | |
739 |
|
740 |
|
741 |
|
742 |
|
743 |
|
744 |
|
745 | function parseLogicalOr(state) {
|
746 | var node = parseLogicalXor(state);
|
747 |
|
748 | while (state.token === 'or') {
|
749 |
|
750 | getTokenSkipNewline(state);
|
751 | node = new OperatorNode('or', 'or', [node, parseLogicalXor(state)]);
|
752 | }
|
753 |
|
754 | return node;
|
755 | }
|
756 | |
757 |
|
758 |
|
759 |
|
760 |
|
761 |
|
762 |
|
763 | function parseLogicalXor(state) {
|
764 | var node = parseLogicalAnd(state);
|
765 |
|
766 | while (state.token === 'xor') {
|
767 |
|
768 | getTokenSkipNewline(state);
|
769 | node = new OperatorNode('xor', 'xor', [node, parseLogicalAnd(state)]);
|
770 | }
|
771 |
|
772 | return node;
|
773 | }
|
774 | |
775 |
|
776 |
|
777 |
|
778 |
|
779 |
|
780 |
|
781 | function parseLogicalAnd(state) {
|
782 | var node = parseBitwiseOr(state);
|
783 |
|
784 | while (state.token === 'and') {
|
785 |
|
786 | getTokenSkipNewline(state);
|
787 | node = new OperatorNode('and', 'and', [node, parseBitwiseOr(state)]);
|
788 | }
|
789 |
|
790 | return node;
|
791 | }
|
792 | |
793 |
|
794 |
|
795 |
|
796 |
|
797 |
|
798 |
|
799 | function parseBitwiseOr(state) {
|
800 | var node = parseBitwiseXor(state);
|
801 |
|
802 | while (state.token === '|') {
|
803 |
|
804 | getTokenSkipNewline(state);
|
805 | node = new OperatorNode('|', 'bitOr', [node, parseBitwiseXor(state)]);
|
806 | }
|
807 |
|
808 | return node;
|
809 | }
|
810 | |
811 |
|
812 |
|
813 |
|
814 |
|
815 |
|
816 |
|
817 | function parseBitwiseXor(state) {
|
818 | var node = parseBitwiseAnd(state);
|
819 |
|
820 | while (state.token === '^|') {
|
821 |
|
822 | getTokenSkipNewline(state);
|
823 | node = new OperatorNode('^|', 'bitXor', [node, parseBitwiseAnd(state)]);
|
824 | }
|
825 |
|
826 | return node;
|
827 | }
|
828 | |
829 |
|
830 |
|
831 |
|
832 |
|
833 |
|
834 |
|
835 | function parseBitwiseAnd(state) {
|
836 | var node = parseRelational(state);
|
837 |
|
838 | while (state.token === '&') {
|
839 |
|
840 | getTokenSkipNewline(state);
|
841 | node = new OperatorNode('&', 'bitAnd', [node, parseRelational(state)]);
|
842 | }
|
843 |
|
844 | return node;
|
845 | }
|
846 | |
847 |
|
848 |
|
849 |
|
850 |
|
851 |
|
852 | function parseRelational(state) {
|
853 | var params = [parseShift(state)];
|
854 | var conditionals = [];
|
855 | var operators = {
|
856 | '==': 'equal',
|
857 | '!=': 'unequal',
|
858 | '<': 'smaller',
|
859 | '>': 'larger',
|
860 | '<=': 'smallerEq',
|
861 | '>=': 'largerEq'
|
862 | };
|
863 |
|
864 | while (hasOwnProperty(operators, state.token)) {
|
865 |
|
866 | var cond = {
|
867 | name: state.token,
|
868 | fn: operators[state.token]
|
869 | };
|
870 | conditionals.push(cond);
|
871 | getTokenSkipNewline(state);
|
872 | params.push(parseShift(state));
|
873 | }
|
874 |
|
875 | if (params.length === 1) {
|
876 | return params[0];
|
877 | } else if (params.length === 2) {
|
878 | return new OperatorNode(conditionals[0].name, conditionals[0].fn, params);
|
879 | } else {
|
880 | return new RelationalNode(conditionals.map(c => c.fn), params);
|
881 | }
|
882 | }
|
883 | |
884 |
|
885 |
|
886 |
|
887 |
|
888 |
|
889 |
|
890 | function parseShift(state) {
|
891 | var node, name, fn, params;
|
892 | node = parseConversion(state);
|
893 | var operators = {
|
894 | '<<': 'leftShift',
|
895 | '>>': 'rightArithShift',
|
896 | '>>>': 'rightLogShift'
|
897 | };
|
898 |
|
899 | while (hasOwnProperty(operators, state.token)) {
|
900 | name = state.token;
|
901 | fn = operators[name];
|
902 | getTokenSkipNewline(state);
|
903 | params = [node, parseConversion(state)];
|
904 | node = new OperatorNode(name, fn, params);
|
905 | }
|
906 |
|
907 | return node;
|
908 | }
|
909 | |
910 |
|
911 |
|
912 |
|
913 |
|
914 |
|
915 |
|
916 | function parseConversion(state) {
|
917 | var node, name, fn, params;
|
918 | node = parseRange(state);
|
919 | var operators = {
|
920 | to: 'to',
|
921 | in: 'to'
|
922 |
|
923 | };
|
924 |
|
925 | while (hasOwnProperty(operators, state.token)) {
|
926 | name = state.token;
|
927 | fn = operators[name];
|
928 | getTokenSkipNewline(state);
|
929 |
|
930 | if (name === 'in' && state.token === '') {
|
931 |
|
932 | node = new OperatorNode('*', 'multiply', [node, new SymbolNode('in')], true);
|
933 | } else {
|
934 |
|
935 | params = [node, parseRange(state)];
|
936 | node = new OperatorNode(name, fn, params);
|
937 | }
|
938 | }
|
939 |
|
940 | return node;
|
941 | }
|
942 | |
943 |
|
944 |
|
945 |
|
946 |
|
947 |
|
948 |
|
949 | function parseRange(state) {
|
950 | var node;
|
951 | var params = [];
|
952 |
|
953 | if (state.token === ':') {
|
954 |
|
955 | node = new ConstantNode(1);
|
956 | } else {
|
957 |
|
958 | node = parseAddSubtract(state);
|
959 | }
|
960 |
|
961 | if (state.token === ':' && state.conditionalLevel !== state.nestingLevel) {
|
962 |
|
963 | params.push(node);
|
964 |
|
965 | while (state.token === ':' && params.length < 3) {
|
966 |
|
967 | getTokenSkipNewline(state);
|
968 |
|
969 | if (state.token === ')' || state.token === ']' || state.token === ',' || state.token === '') {
|
970 |
|
971 | params.push(new SymbolNode('end'));
|
972 | } else {
|
973 |
|
974 | params.push(parseAddSubtract(state));
|
975 | }
|
976 | }
|
977 |
|
978 | if (params.length === 3) {
|
979 |
|
980 | node = new RangeNode(params[0], params[2], params[1]);
|
981 | } else {
|
982 |
|
983 |
|
984 | node = new RangeNode(params[0], params[1]);
|
985 | }
|
986 | }
|
987 |
|
988 | return node;
|
989 | }
|
990 | |
991 |
|
992 |
|
993 |
|
994 |
|
995 |
|
996 |
|
997 | function parseAddSubtract(state) {
|
998 | var node, name, fn, params;
|
999 | node = parseMultiplyDivide(state);
|
1000 | var operators = {
|
1001 | '+': 'add',
|
1002 | '-': 'subtract'
|
1003 | };
|
1004 |
|
1005 | while (hasOwnProperty(operators, state.token)) {
|
1006 | name = state.token;
|
1007 | fn = operators[name];
|
1008 | getTokenSkipNewline(state);
|
1009 | params = [node, parseMultiplyDivide(state)];
|
1010 | node = new OperatorNode(name, fn, params);
|
1011 | }
|
1012 |
|
1013 | return node;
|
1014 | }
|
1015 | |
1016 |
|
1017 |
|
1018 |
|
1019 |
|
1020 |
|
1021 |
|
1022 | function parseMultiplyDivide(state) {
|
1023 | var node, last, name, fn;
|
1024 | node = parseImplicitMultiplication(state);
|
1025 | last = node;
|
1026 | var operators = {
|
1027 | '*': 'multiply',
|
1028 | '.*': 'dotMultiply',
|
1029 | '/': 'divide',
|
1030 | './': 'dotDivide',
|
1031 | '%': 'mod',
|
1032 | mod: 'mod'
|
1033 | };
|
1034 |
|
1035 | while (true) {
|
1036 | if (hasOwnProperty(operators, state.token)) {
|
1037 |
|
1038 | name = state.token;
|
1039 | fn = operators[name];
|
1040 | getTokenSkipNewline(state);
|
1041 | last = parseImplicitMultiplication(state);
|
1042 | node = new OperatorNode(name, fn, [node, last]);
|
1043 | } else {
|
1044 | break;
|
1045 | }
|
1046 | }
|
1047 |
|
1048 | return node;
|
1049 | }
|
1050 | |
1051 |
|
1052 |
|
1053 |
|
1054 |
|
1055 |
|
1056 |
|
1057 | function parseImplicitMultiplication(state) {
|
1058 | var node, last;
|
1059 | node = parseRule2(state);
|
1060 | last = node;
|
1061 |
|
1062 | while (true) {
|
1063 | if (state.tokenType === TOKENTYPE.SYMBOL || state.token === 'in' && isConstantNode(node) || state.tokenType === TOKENTYPE.NUMBER && !isConstantNode(last) && (!isOperatorNode(last) || last.op === '!') || state.token === '(') {
|
1064 |
|
1065 |
|
1066 |
|
1067 |
|
1068 |
|
1069 | last = parseRule2(state);
|
1070 | node = new OperatorNode('*', 'multiply', [node, last], true
|
1071 |
|
1072 | );
|
1073 | } else {
|
1074 | break;
|
1075 | }
|
1076 | }
|
1077 |
|
1078 | return node;
|
1079 | }
|
1080 | |
1081 |
|
1082 |
|
1083 |
|
1084 |
|
1085 |
|
1086 |
|
1087 |
|
1088 |
|
1089 | function parseRule2(state) {
|
1090 | var node = parseUnary(state);
|
1091 | var last = node;
|
1092 | var tokenStates = [];
|
1093 |
|
1094 | while (true) {
|
1095 |
|
1096 | if (state.token === '/' && isConstantNode(last)) {
|
1097 |
|
1098 | tokenStates.push(_extends({}, state));
|
1099 | getTokenSkipNewline(state);
|
1100 |
|
1101 | if (state.tokenType === TOKENTYPE.NUMBER) {
|
1102 |
|
1103 | tokenStates.push(_extends({}, state));
|
1104 | getTokenSkipNewline(state);
|
1105 |
|
1106 | if (state.tokenType === TOKENTYPE.SYMBOL || state.token === '(') {
|
1107 |
|
1108 |
|
1109 | _extends(state, tokenStates.pop());
|
1110 |
|
1111 | tokenStates.pop();
|
1112 | last = parseUnary(state);
|
1113 | node = new OperatorNode('/', 'divide', [node, last]);
|
1114 | } else {
|
1115 |
|
1116 | tokenStates.pop();
|
1117 |
|
1118 | _extends(state, tokenStates.pop());
|
1119 |
|
1120 | break;
|
1121 | }
|
1122 | } else {
|
1123 |
|
1124 | _extends(state, tokenStates.pop());
|
1125 |
|
1126 | break;
|
1127 | }
|
1128 | } else {
|
1129 | break;
|
1130 | }
|
1131 | }
|
1132 |
|
1133 | return node;
|
1134 | }
|
1135 | |
1136 |
|
1137 |
|
1138 |
|
1139 |
|
1140 |
|
1141 |
|
1142 | function parseUnary(state) {
|
1143 | var name, params, fn;
|
1144 | var operators = {
|
1145 | '-': 'unaryMinus',
|
1146 | '+': 'unaryPlus',
|
1147 | '~': 'bitNot',
|
1148 | not: 'not'
|
1149 | };
|
1150 |
|
1151 | if (hasOwnProperty(operators, state.token)) {
|
1152 | fn = operators[state.token];
|
1153 | name = state.token;
|
1154 | getTokenSkipNewline(state);
|
1155 | params = [parseUnary(state)];
|
1156 | return new OperatorNode(name, fn, params);
|
1157 | }
|
1158 |
|
1159 | return parsePow(state);
|
1160 | }
|
1161 | |
1162 |
|
1163 |
|
1164 |
|
1165 |
|
1166 |
|
1167 |
|
1168 |
|
1169 | function parsePow(state) {
|
1170 | var node, name, fn, params;
|
1171 | node = parseLeftHandOperators(state);
|
1172 |
|
1173 | if (state.token === '^' || state.token === '.^') {
|
1174 | name = state.token;
|
1175 | fn = name === '^' ? 'pow' : 'dotPow';
|
1176 | getTokenSkipNewline(state);
|
1177 | params = [node, parseUnary(state)];
|
1178 |
|
1179 | node = new OperatorNode(name, fn, params);
|
1180 | }
|
1181 |
|
1182 | return node;
|
1183 | }
|
1184 | |
1185 |
|
1186 |
|
1187 |
|
1188 |
|
1189 |
|
1190 |
|
1191 | function parseLeftHandOperators(state) {
|
1192 | var node, name, fn, params;
|
1193 | node = parseCustomNodes(state);
|
1194 | var operators = {
|
1195 | '!': 'factorial',
|
1196 | '\'': 'ctranspose'
|
1197 | };
|
1198 |
|
1199 | while (hasOwnProperty(operators, state.token)) {
|
1200 | name = state.token;
|
1201 | fn = operators[name];
|
1202 | getToken(state);
|
1203 | params = [node];
|
1204 | node = new OperatorNode(name, fn, params);
|
1205 | node = parseAccessors(state, node);
|
1206 | }
|
1207 |
|
1208 | return node;
|
1209 | }
|
1210 | |
1211 |
|
1212 |
|
1213 |
|
1214 |
|
1215 |
|
1216 |
|
1217 |
|
1218 |
|
1219 |
|
1220 |
|
1221 |
|
1222 |
|
1223 |
|
1224 |
|
1225 |
|
1226 |
|
1227 |
|
1228 |
|
1229 |
|
1230 |
|
1231 |
|
1232 |
|
1233 |
|
1234 |
|
1235 |
|
1236 |
|
1237 |
|
1238 |
|
1239 |
|
1240 | function parseCustomNodes(state) {
|
1241 | var params = [];
|
1242 |
|
1243 | if (state.tokenType === TOKENTYPE.SYMBOL && hasOwnProperty(state.extraNodes, state.token)) {
|
1244 | var CustomNode = state.extraNodes[state.token];
|
1245 | getToken(state);
|
1246 |
|
1247 | if (state.token === '(') {
|
1248 | params = [];
|
1249 | openParams(state);
|
1250 | getToken(state);
|
1251 |
|
1252 | if (state.token !== ')') {
|
1253 | params.push(parseAssignment(state));
|
1254 |
|
1255 | while (state.token === ',') {
|
1256 |
|
1257 | getToken(state);
|
1258 | params.push(parseAssignment(state));
|
1259 | }
|
1260 | }
|
1261 |
|
1262 | if (state.token !== ')') {
|
1263 | throw createSyntaxError(state, 'Parenthesis ) expected');
|
1264 | }
|
1265 |
|
1266 | closeParams(state);
|
1267 | getToken(state);
|
1268 | }
|
1269 |
|
1270 |
|
1271 |
|
1272 | return new CustomNode(params);
|
1273 | }
|
1274 |
|
1275 | return parseSymbol(state);
|
1276 | }
|
1277 | |
1278 |
|
1279 |
|
1280 |
|
1281 |
|
1282 |
|
1283 |
|
1284 | function parseSymbol(state) {
|
1285 | var node, name;
|
1286 |
|
1287 | if (state.tokenType === TOKENTYPE.SYMBOL || state.tokenType === TOKENTYPE.DELIMITER && state.token in NAMED_DELIMITERS) {
|
1288 | name = state.token;
|
1289 | getToken(state);
|
1290 |
|
1291 | if (hasOwnProperty(CONSTANTS, name)) {
|
1292 |
|
1293 | node = new ConstantNode(CONSTANTS[name]);
|
1294 | } else if (NUMERIC_CONSTANTS.indexOf(name) !== -1) {
|
1295 |
|
1296 | node = new ConstantNode(numeric(name, 'number'));
|
1297 | } else {
|
1298 | node = new SymbolNode(name);
|
1299 | }
|
1300 |
|
1301 |
|
1302 | node = parseAccessors(state, node);
|
1303 | return node;
|
1304 | }
|
1305 |
|
1306 | return parseDoubleQuotesString(state);
|
1307 | }
|
1308 | |
1309 |
|
1310 |
|
1311 |
|
1312 |
|
1313 |
|
1314 |
|
1315 |
|
1316 |
|
1317 |
|
1318 |
|
1319 |
|
1320 |
|
1321 |
|
1322 |
|
1323 |
|
1324 | function parseAccessors(state, node, types) {
|
1325 | var params;
|
1326 |
|
1327 | while ((state.token === '(' || state.token === '[' || state.token === '.') && (!types || types.indexOf(state.token) !== -1)) {
|
1328 |
|
1329 | params = [];
|
1330 |
|
1331 | if (state.token === '(') {
|
1332 | if (isSymbolNode(node) || isAccessorNode(node)) {
|
1333 |
|
1334 | openParams(state);
|
1335 | getToken(state);
|
1336 |
|
1337 | if (state.token !== ')') {
|
1338 | params.push(parseAssignment(state));
|
1339 |
|
1340 | while (state.token === ',') {
|
1341 |
|
1342 | getToken(state);
|
1343 | params.push(parseAssignment(state));
|
1344 | }
|
1345 | }
|
1346 |
|
1347 | if (state.token !== ')') {
|
1348 | throw createSyntaxError(state, 'Parenthesis ) expected');
|
1349 | }
|
1350 |
|
1351 | closeParams(state);
|
1352 | getToken(state);
|
1353 | node = new FunctionNode(node, params);
|
1354 | } else {
|
1355 |
|
1356 |
|
1357 |
|
1358 | return node;
|
1359 | }
|
1360 | } else if (state.token === '[') {
|
1361 |
|
1362 | openParams(state);
|
1363 | getToken(state);
|
1364 |
|
1365 | if (state.token !== ']') {
|
1366 | params.push(parseAssignment(state));
|
1367 |
|
1368 | while (state.token === ',') {
|
1369 |
|
1370 | getToken(state);
|
1371 | params.push(parseAssignment(state));
|
1372 | }
|
1373 | }
|
1374 |
|
1375 | if (state.token !== ']') {
|
1376 | throw createSyntaxError(state, 'Parenthesis ] expected');
|
1377 | }
|
1378 |
|
1379 | closeParams(state);
|
1380 | getToken(state);
|
1381 | node = new AccessorNode(node, new IndexNode(params));
|
1382 | } else {
|
1383 |
|
1384 | getToken(state);
|
1385 |
|
1386 | if (state.tokenType !== TOKENTYPE.SYMBOL) {
|
1387 | throw createSyntaxError(state, 'Property name expected after dot');
|
1388 | }
|
1389 |
|
1390 | params.push(new ConstantNode(state.token));
|
1391 | getToken(state);
|
1392 | var dotNotation = true;
|
1393 | node = new AccessorNode(node, new IndexNode(params, dotNotation));
|
1394 | }
|
1395 | }
|
1396 |
|
1397 | return node;
|
1398 | }
|
1399 | |
1400 |
|
1401 |
|
1402 |
|
1403 |
|
1404 |
|
1405 |
|
1406 | function parseDoubleQuotesString(state) {
|
1407 | var node, str;
|
1408 |
|
1409 | if (state.token === '"') {
|
1410 | str = parseDoubleQuotesStringToken(state);
|
1411 |
|
1412 | node = new ConstantNode(str);
|
1413 |
|
1414 | node = parseAccessors(state, node);
|
1415 | return node;
|
1416 | }
|
1417 |
|
1418 | return parseSingleQuotesString(state);
|
1419 | }
|
1420 | |
1421 |
|
1422 |
|
1423 |
|
1424 |
|
1425 |
|
1426 | function parseDoubleQuotesStringToken(state) {
|
1427 | var str = '';
|
1428 |
|
1429 | while (currentCharacter(state) !== '' && currentCharacter(state) !== '"') {
|
1430 | if (currentCharacter(state) === '\\') {
|
1431 |
|
1432 |
|
1433 | str += currentCharacter(state);
|
1434 | next(state);
|
1435 | }
|
1436 |
|
1437 | str += currentCharacter(state);
|
1438 | next(state);
|
1439 | }
|
1440 |
|
1441 | getToken(state);
|
1442 |
|
1443 | if (state.token !== '"') {
|
1444 | throw createSyntaxError(state, 'End of string " expected');
|
1445 | }
|
1446 |
|
1447 | getToken(state);
|
1448 | return JSON.parse('"' + str + '"');
|
1449 | }
|
1450 | |
1451 |
|
1452 |
|
1453 |
|
1454 |
|
1455 |
|
1456 |
|
1457 | function parseSingleQuotesString(state) {
|
1458 | var node, str;
|
1459 |
|
1460 | if (state.token === '\'') {
|
1461 | str = parseSingleQuotesStringToken(state);
|
1462 |
|
1463 | node = new ConstantNode(str);
|
1464 |
|
1465 | node = parseAccessors(state, node);
|
1466 | return node;
|
1467 | }
|
1468 |
|
1469 | return parseMatrix(state);
|
1470 | }
|
1471 | |
1472 |
|
1473 |
|
1474 |
|
1475 |
|
1476 |
|
1477 | function parseSingleQuotesStringToken(state) {
|
1478 | var str = '';
|
1479 |
|
1480 | while (currentCharacter(state) !== '' && currentCharacter(state) !== '\'') {
|
1481 | if (currentCharacter(state) === '\\') {
|
1482 |
|
1483 |
|
1484 | str += currentCharacter(state);
|
1485 | next(state);
|
1486 | }
|
1487 |
|
1488 | str += currentCharacter(state);
|
1489 | next(state);
|
1490 | }
|
1491 |
|
1492 | getToken(state);
|
1493 |
|
1494 | if (state.token !== '\'') {
|
1495 | throw createSyntaxError(state, 'End of string \' expected');
|
1496 | }
|
1497 |
|
1498 | getToken(state);
|
1499 | return JSON.parse('"' + str + '"');
|
1500 | }
|
1501 | |
1502 |
|
1503 |
|
1504 |
|
1505 |
|
1506 |
|
1507 |
|
1508 | function parseMatrix(state) {
|
1509 | var array, params, rows, cols;
|
1510 |
|
1511 | if (state.token === '[') {
|
1512 |
|
1513 | openParams(state);
|
1514 | getToken(state);
|
1515 |
|
1516 | if (state.token !== ']') {
|
1517 |
|
1518 | var row = parseRow(state);
|
1519 |
|
1520 | if (state.token === ';') {
|
1521 |
|
1522 | rows = 1;
|
1523 | params = [row];
|
1524 |
|
1525 | while (state.token === ';') {
|
1526 |
|
1527 | getToken(state);
|
1528 | params[rows] = parseRow(state);
|
1529 | rows++;
|
1530 | }
|
1531 |
|
1532 | if (state.token !== ']') {
|
1533 | throw createSyntaxError(state, 'End of matrix ] expected');
|
1534 | }
|
1535 |
|
1536 | closeParams(state);
|
1537 | getToken(state);
|
1538 |
|
1539 | cols = params[0].items.length;
|
1540 |
|
1541 | for (var r = 1; r < rows; r++) {
|
1542 | if (params[r].items.length !== cols) {
|
1543 | throw createError(state, 'Column dimensions mismatch ' + '(' + params[r].items.length + ' !== ' + cols + ')');
|
1544 | }
|
1545 | }
|
1546 |
|
1547 | array = new ArrayNode(params);
|
1548 | } else {
|
1549 |
|
1550 | if (state.token !== ']') {
|
1551 | throw createSyntaxError(state, 'End of matrix ] expected');
|
1552 | }
|
1553 |
|
1554 | closeParams(state);
|
1555 | getToken(state);
|
1556 | array = row;
|
1557 | }
|
1558 | } else {
|
1559 |
|
1560 | closeParams(state);
|
1561 | getToken(state);
|
1562 | array = new ArrayNode([]);
|
1563 | }
|
1564 |
|
1565 | return parseAccessors(state, array);
|
1566 | }
|
1567 |
|
1568 | return parseObject(state);
|
1569 | }
|
1570 | |
1571 |
|
1572 |
|
1573 |
|
1574 |
|
1575 |
|
1576 | function parseRow(state) {
|
1577 | var params = [parseAssignment(state)];
|
1578 | var len = 1;
|
1579 |
|
1580 | while (state.token === ',') {
|
1581 |
|
1582 | getToken(state);
|
1583 |
|
1584 | params[len] = parseAssignment(state);
|
1585 | len++;
|
1586 | }
|
1587 |
|
1588 | return new ArrayNode(params);
|
1589 | }
|
1590 | |
1591 |
|
1592 |
|
1593 |
|
1594 |
|
1595 |
|
1596 |
|
1597 | function parseObject(state) {
|
1598 | if (state.token === '{') {
|
1599 | openParams(state);
|
1600 | var key;
|
1601 | var properties = {};
|
1602 |
|
1603 | do {
|
1604 | getToken(state);
|
1605 |
|
1606 | if (state.token !== '}') {
|
1607 |
|
1608 | if (state.token === '"') {
|
1609 | key = parseDoubleQuotesStringToken(state);
|
1610 | } else if (state.token === '\'') {
|
1611 | key = parseSingleQuotesStringToken(state);
|
1612 | } else if (state.tokenType === TOKENTYPE.SYMBOL || state.tokenType === TOKENTYPE.DELIMITER && state.token in NAMED_DELIMITERS) {
|
1613 | key = state.token;
|
1614 | getToken(state);
|
1615 | } else {
|
1616 | throw createSyntaxError(state, 'Symbol or string expected as object key');
|
1617 | }
|
1618 |
|
1619 |
|
1620 | if (state.token !== ':') {
|
1621 | throw createSyntaxError(state, 'Colon : expected after object key');
|
1622 | }
|
1623 |
|
1624 | getToken(state);
|
1625 |
|
1626 | properties[key] = parseAssignment(state);
|
1627 | }
|
1628 | } while (state.token === ',');
|
1629 |
|
1630 |
|
1631 | if (state.token !== '}') {
|
1632 | throw createSyntaxError(state, 'Comma , or bracket } expected after object value');
|
1633 | }
|
1634 |
|
1635 | closeParams(state);
|
1636 | getToken(state);
|
1637 | var node = new ObjectNode(properties);
|
1638 |
|
1639 | node = parseAccessors(state, node);
|
1640 | return node;
|
1641 | }
|
1642 |
|
1643 | return parseNumber(state);
|
1644 | }
|
1645 | |
1646 |
|
1647 |
|
1648 |
|
1649 |
|
1650 |
|
1651 |
|
1652 | function parseNumber(state) {
|
1653 | var numberStr;
|
1654 |
|
1655 | if (state.tokenType === TOKENTYPE.NUMBER) {
|
1656 |
|
1657 | numberStr = state.token;
|
1658 | getToken(state);
|
1659 | return new ConstantNode(numeric(numberStr, config.number));
|
1660 | }
|
1661 |
|
1662 | return parseParentheses(state);
|
1663 | }
|
1664 | |
1665 |
|
1666 |
|
1667 |
|
1668 |
|
1669 |
|
1670 |
|
1671 | function parseParentheses(state) {
|
1672 | var node;
|
1673 |
|
1674 | if (state.token === '(') {
|
1675 |
|
1676 | openParams(state);
|
1677 | getToken(state);
|
1678 | node = parseAssignment(state);
|
1679 |
|
1680 | if (state.token !== ')') {
|
1681 | throw createSyntaxError(state, 'Parenthesis ) expected');
|
1682 | }
|
1683 |
|
1684 | closeParams(state);
|
1685 | getToken(state);
|
1686 | node = new ParenthesisNode(node);
|
1687 | node = parseAccessors(state, node);
|
1688 | return node;
|
1689 | }
|
1690 |
|
1691 | return parseEnd(state);
|
1692 | }
|
1693 | |
1694 |
|
1695 |
|
1696 |
|
1697 |
|
1698 |
|
1699 |
|
1700 | function parseEnd(state) {
|
1701 | if (state.token === '') {
|
1702 |
|
1703 | throw createSyntaxError(state, 'Unexpected end of expression');
|
1704 | } else {
|
1705 | throw createSyntaxError(state, 'Value expected');
|
1706 | }
|
1707 | }
|
1708 | |
1709 |
|
1710 |
|
1711 |
|
1712 |
|
1713 |
|
1714 | |
1715 |
|
1716 |
|
1717 |
|
1718 |
|
1719 |
|
1720 | |
1721 |
|
1722 |
|
1723 |
|
1724 |
|
1725 |
|
1726 |
|
1727 | function col(state) {
|
1728 | return state.index - state.token.length + 1;
|
1729 | }
|
1730 | |
1731 |
|
1732 |
|
1733 |
|
1734 |
|
1735 |
|
1736 |
|
1737 |
|
1738 |
|
1739 | function createSyntaxError(state, message) {
|
1740 | var c = col(state);
|
1741 | var error = new SyntaxError(message + ' (char ' + c + ')');
|
1742 | error.char = c;
|
1743 | return error;
|
1744 | }
|
1745 | |
1746 |
|
1747 |
|
1748 |
|
1749 |
|
1750 |
|
1751 |
|
1752 |
|
1753 |
|
1754 | function createError(state, message) {
|
1755 | var c = col(state);
|
1756 | var error = new SyntaxError(message + ' (char ' + c + ')');
|
1757 | error.char = c;
|
1758 | return error;
|
1759 | }
|
1760 |
|
1761 | return parse;
|
1762 | }); |
\ | No newline at end of file |