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