1 /* 2 JessieCode Interpreter and Compiler 3 4 Copyright 2011-2024 5 Michael Gerhaeuser, 6 Alfred Wassermann 7 8 JessieCode is free software dual licensed under the GNU LGPL or MIT License. 9 10 You can redistribute it and/or modify it under the terms of the 11 12 * GNU Lesser General Public License as published by 13 the Free Software Foundation, either version 3 of the License, or 14 (at your option) any later version 15 OR 16 * MIT License: https://github.com/jsxgraph/jsxgraph/blob/master/LICENSE.MIT 17 18 JessieCode is distributed in the hope that it will be useful, 19 but WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 21 GNU Lesser General Public License for more details. 22 23 You should have received a copy of the GNU Lesser General Public License and 24 the MIT License along with JessieCode. If not, see <https://www.gnu.org/licenses/> 25 and <https://opensource.org/licenses/MIT/>. 26 */ 27 28 /*global JXG: true, define: true, window: true, console: true, self: true, document: true, parser: true*/ 29 /*jslint nomen: true, plusplus: true*/ 30 31 /** 32 * @fileoverview JessieCode is a scripting language designed to provide a 33 * simple scripting language to build constructions 34 * with JSXGraph. It is similar to JavaScript, but prevents access to the DOM. 35 * Hence, it can be used in community driven math portals which want to use 36 * JSXGraph to display interactive math graphics. 37 */ 38 39 import JXG from "../jxg.js"; 40 import Const from "../base/constants.js"; 41 import Text from "../base/text.js"; 42 import Mat from "../math/math.js"; 43 import Interval from "../math/ia.js"; 44 import Geometry from "../math/geometry.js"; 45 import Statistics from "../math/statistics.js"; 46 import Type from "../utils/type.js"; 47 import Env from "../utils/env.js"; 48 49 // IE 6-8 compatibility 50 if (!Object.create) { 51 Object.create = function (o, properties) { 52 if (typeof o !== 'object' && typeof o !== 'function') throw new TypeError('Object prototype may only be an Object: ' + o); 53 else if (o === null) throw new Error("This browser's implementation of Object.create is a shim and doesn't support 'null' as the first argument."); 54 55 if (typeof properties != 'undefined') throw new Error("This browser's implementation of Object.create is a shim and doesn't support a second argument."); 56 57 function F() { } 58 59 F.prototype = o; 60 61 return new F(); 62 }; 63 } 64 65 var priv = { 66 modules: { 67 'math': Mat, 68 'math/geometry': Geometry, 69 'math/statistics': Statistics, 70 'math/numerics': Mat.Numerics 71 } 72 }; 73 74 /** 75 * A JessieCode object provides an interface to the parser and stores all variables and objects used within a JessieCode script. 76 * The optional argument <tt>code</tt> is interpreted after initializing. To evaluate more code after initializing a JessieCode instance 77 * please use {@link JXG.JessieCode#parse}. For code snippets like single expressions use {@link JXG.JessieCode#snippet}. 78 * @constructor 79 * @param {String} [code] Code to parse. 80 * @param {Boolean} [geonext=false] Geonext compatibility mode. 81 */ 82 JXG.JessieCode = function (code, geonext) { 83 // Control structures 84 85 /** 86 * The global scope. 87 * @type Object 88 */ 89 this.scope = { 90 id: 0, 91 hasChild: true, 92 args: [], 93 locals: {}, 94 context: null, 95 previous: null 96 }; 97 98 /** 99 * Keeps track of all possible scopes every required. 100 * @type Array 101 */ 102 this.scopes = []; 103 this.scopes.push(this.scope); 104 105 /** 106 * A stack to store debug information (like line and column where it was defined) of a parameter 107 * @type Array 108 * @private 109 */ 110 this.dpstack = [[]]; 111 112 /** 113 * Determines the parameter stack scope. 114 * @type Number 115 * @private 116 */ 117 this.pscope = 0; 118 119 /** 120 * Used to store the property-value definition while parsing an object literal. 121 * @type Array 122 * @private 123 */ 124 this.propstack = [{}]; 125 126 /** 127 * The current scope of the object literal stack {@link JXG.JessieCode#propstack}. 128 * @type Number 129 * @private 130 */ 131 this.propscope = 0; 132 133 /** 134 * Store the left hand side of an assignment. If an element is constructed and no attributes are given, this is 135 * used as the element's name. 136 * @type Array 137 * @private 138 */ 139 this.lhs = []; 140 141 /** 142 * lhs flag, used by JXG.JessieCode#replaceNames 143 * @type Boolean 144 * @default false 145 */ 146 this.isLHS = false; 147 148 /** 149 * The id of an HTML node in which innerHTML all warnings are stored (if no <tt>console</tt> object is available). 150 * @type String 151 * @default 'jcwarn' 152 */ 153 this.warnLog = 'jcwarn'; 154 155 /** 156 * Store $log messages in case there's no console. 157 * @type Array 158 */ 159 this.$log = []; 160 161 /** 162 * Built-in functions and constants 163 * @type Object 164 */ 165 this.builtIn = this.defineBuiltIn(); 166 167 /** 168 * List of all possible operands in JessieCode (except of JSXGraph objects). 169 * @type Object 170 */ 171 this.operands = this.getPossibleOperands(); 172 173 /** 174 * The board which currently is used to create and look up elements. 175 * @type JXG.Board 176 */ 177 this.board = null; 178 179 /** 180 * Force slider names to return value instead of node 181 * @type Boolean 182 */ 183 this.forceValueCall = false; 184 185 /** 186 * Keep track of which element is created in which line. 187 * @type Object 188 */ 189 this.lineToElement = {}; 190 191 this.parCurLine = 1; 192 this.parCurColumn = 0; 193 this.line = 1; 194 this.col = 1; 195 196 if (JXG.CA) { 197 this.CA = new JXG.CA(this.node, this.createNode, this); 198 } 199 200 this.code = ''; 201 202 if (typeof code === 'string') { 203 this.parse(code, geonext); 204 } 205 }; 206 207 JXG.extend(JXG.JessieCode.prototype, /** @lends JXG.JessieCode.prototype */ { 208 /** 209 * Create a new parse tree node. 210 * @param {String} type Type of node, e.g. node_op, node_var, or node_const 211 * @param value The nodes value, e.g. a variables value or a functions body. 212 * @param {Array} children Arbitrary number of child nodes. 213 */ 214 node: function (type, value, children) { 215 return { 216 type: type, 217 value: value, 218 children: children 219 }; 220 }, 221 222 /** 223 * Create a new parse tree node. Basically the same as node(), but this builds 224 * the children part out of an arbitrary number of parameters, instead of one 225 * array parameter. 226 * @param {String} type Type of node, e.g. node_op, node_var, or node_const 227 * @param value The nodes value, e.g. a variables value or a functions body. 228 * @param children Arbitrary number of parameters; define the child nodes. 229 */ 230 createNode: function (type, value, children) { 231 var n = this.node(type, value, []), 232 i; 233 234 for (i = 2; i < arguments.length; i++) { 235 n.children.push(arguments[i]); 236 } 237 238 if (n.type === 'node_const' && Type.isNumber(n.value)) { 239 n.isMath = true; 240 } 241 242 n.line = this.parCurLine; 243 n.col = this.parCurColumn; 244 245 return n; 246 }, 247 248 /** 249 * Create a new scope. 250 * @param {Array} args 251 * @returns {Object} 252 */ 253 pushScope: function (args) { 254 var scope = { 255 args: args, 256 locals: {}, 257 context: null, 258 previous: this.scope 259 }; 260 261 this.scope.hasChild = true; 262 this.scope = scope; 263 scope.id = this.scopes.push(scope) - 1; 264 265 return scope; 266 }, 267 268 /** 269 * Remove the current scope and reinstate the previous scope 270 * @returns {Object} 271 */ 272 popScope: function () { 273 var s = this.scope.previous; 274 275 // make sure the global scope is not lost 276 this.scope = s !== null ? s : this.scope; 277 278 return this.scope; 279 }, 280 281 /** 282 * Looks up an {@link JXG.GeometryElement} by its id. 283 * @param {String} id 284 * @returns {JXG.GeometryElement} 285 */ 286 getElementById: function (id) { 287 return this.board.objects[id]; 288 }, 289 290 log: function () { 291 this.$log.push(arguments); 292 293 if (typeof console === 'object' && console.log) { 294 console.log.apply(console, arguments); 295 } 296 }, 297 298 /** 299 * Returns a element creator function which takes two parameters: the parents array and the attributes object. 300 * @param {String} vname The element type, e.g. 'point', 'line', 'midpoint' 301 * @returns {function} 302 */ 303 creator: (function () { 304 // stores the already defined creators 305 var _ccache = {}, r; 306 307 r = function (vname) { 308 var f; 309 310 // _ccache is global, i.e. it is the same for ALL JessieCode instances. 311 // That's why we need the board id here 312 if (typeof _ccache[this.board.id + vname] === 'function') { 313 f = _ccache[this.board.id + vname]; 314 } else { 315 f = (function (that) { 316 return function (parameters, attributes) { 317 var attr; 318 319 if (Type.exists(attributes)) { 320 attr = attributes; 321 } else { 322 attr = {}; 323 } 324 if (attr.name === undefined && attr.id === undefined) { 325 attr.name = (that.lhs[that.scope.id] !== 0 ? that.lhs[that.scope.id] : ''); 326 } 327 return that.board.create(vname, parameters, attr); 328 }; 329 }(this)); 330 331 f.creator = true; 332 _ccache[this.board.id + vname] = f; 333 } 334 335 return f; 336 }; 337 338 r.clearCache = function () { 339 _ccache = {}; 340 }; 341 342 return r; 343 }()), 344 345 /** 346 * Assigns a value to a variable in the current scope. 347 * @param {String} vname Variable name 348 * @param value Anything 349 * @see JXG.JessieCode#sstack 350 * @see JXG.JessieCode#scope 351 */ 352 letvar: function (vname, value) { 353 if (this.builtIn[vname]) { 354 this._warn('"' + vname + '" is a predefined value.'); 355 } 356 357 this.scope.locals[vname] = value; 358 }, 359 360 /** 361 * Checks if the given variable name can be found in the current scope chain. 362 * @param {String} vname 363 * @returns {Object} A reference to the scope object the variable can be found in or null if it can't be found. 364 */ 365 isLocalVariable: function (vname) { 366 var s = this.scope; 367 368 while (s !== null) { 369 if (Type.exists(s.locals[vname])) { 370 return s; 371 } 372 373 s = s.previous; 374 } 375 376 return null; 377 }, 378 379 /** 380 * Checks if the given variable name is a parameter in any scope from the current to the global scope. 381 * @param {String} vname 382 * @returns {Object} A reference to the scope object that contains the variable in its arg list. 383 */ 384 isParameter: function (vname) { 385 var s = this.scope; 386 387 while (s !== null) { 388 if (Type.indexOf(s.args, vname) > -1) { 389 return s; 390 } 391 392 s = s.previous; 393 } 394 395 return null; 396 }, 397 398 /** 399 * Checks if the given variable name is a valid creator method. 400 * @param {String} vname 401 * @returns {Boolean} 402 */ 403 isCreator: function (vname) { 404 // check for an element with this name 405 return !!JXG.elements[vname]; 406 }, 407 408 /** 409 * Checks if the given variable identifier is a valid member of the JavaScript Math Object. 410 * @param {String} vname 411 * @returns {Boolean} 412 */ 413 isMathMethod: function (vname) { 414 return vname !== 'E' && !!Math[vname]; 415 }, 416 417 /** 418 * Returns true if the given identifier is a builtIn variable/function. 419 * @param {String} vname 420 * @returns {Boolean} 421 */ 422 isBuiltIn: function (vname) { 423 return !!this.builtIn[vname]; 424 }, 425 426 /** 427 * Looks up the value of the given variable. We use a simple type inspection. 428 * 429 * @param {String} vname Name of the variable 430 * @param {Boolean} [local=false] Only look up the internal symbol table and don't look for 431 * the <tt>vname</tt> in Math or the element list. 432 * @param {Boolean} [isFunctionName=false] Lookup function of type builtIn, Math.*, creator. 433 * 434 * @see JXG.JessieCode#resolveType 435 */ 436 getvar: function (vname, local, isFunctionName) { 437 var s; 438 439 local = Type.def(local, false); 440 441 // Local scope has always precedence 442 s = this.isLocalVariable(vname); 443 444 if (s !== null) { 445 return s.locals[vname]; 446 } 447 448 // Handle the - so far only - few constants by hard coding them. 449 if (vname === '$board' || vname === 'EULER' || vname === 'PI') { 450 return this.builtIn[vname]; 451 } 452 453 if (isFunctionName) { 454 if (this.isBuiltIn(vname)) { 455 return this.builtIn[vname]; 456 } 457 458 if (this.isMathMethod(vname)) { 459 return Math[vname]; 460 } 461 462 // check for an element with this name 463 if (this.isCreator(vname)) { 464 return this.creator(vname); 465 } 466 } 467 468 if (!local) { 469 s = this.board.select(vname); 470 if (s !== vname) { 471 return s; 472 } 473 } 474 }, 475 476 /** 477 * Look up the value of a local variable. 478 * @param {string} vname 479 * @returns {*} 480 */ 481 resolve: function (vname) { 482 var s = this.scope; 483 484 while (s !== null) { 485 if (Type.exists(s.locals[vname])) { 486 return s.locals[vname]; 487 } 488 489 s = s.previous; 490 } 491 }, 492 493 /** 494 * TODO this needs to be called from JS and should not generate JS code 495 * Looks up a variable identifier in various tables and generates JavaScript code that could be eval'd to get the value. 496 * @param {String} vname Identifier 497 * @param {Boolean} [local=false] Don't resolve ids and names of elements 498 * @param {Boolean} [withProps=false] 499 */ 500 getvarJS: function (vname, local, withProps) { 501 var s, r = '', re; 502 503 local = Type.def(local, false); 504 withProps = Type.def(withProps, false); 505 506 s = this.isParameter(vname); 507 if (s !== null) { 508 return vname; 509 } 510 511 s = this.isLocalVariable(vname); 512 if (s !== null && !withProps) { 513 return '$jc$.resolve(\'' + vname + '\')'; 514 } 515 516 // check for an element with this name 517 if (this.isCreator(vname)) { 518 return '(function () { var a = Array.prototype.slice.call(arguments, 0), props = ' + (withProps ? 'a.pop()' : '{}') + '; return $jc$.board.create.apply($jc$.board, [\'' + vname + '\'].concat([a, props])); })'; 519 } 520 521 if (withProps) { 522 this._error('Syntax error (attribute values are allowed with element creators only)'); 523 } 524 525 if (this.isBuiltIn(vname)) { 526 // If src does not exist, it is a number. In that case, just return the value. 527 r = this.builtIn[vname].src || this.builtIn[vname]; 528 529 // Get the "real" name of the function 530 if (Type.isNumber(r)) { 531 return r; 532 } 533 // Search a JSXGraph object in board 534 if (r.match(/board\.select/)) { 535 return r; 536 } 537 538 /* eslint-disable no-useless-escape */ 539 vname = r.split('.').pop(); 540 if (Type.exists(this.board.mathLib)) { 541 // Handle builtin case: ln(x) -> Math.log 542 re = new RegExp('^Math\.' + vname); 543 if (re.exec(r) !== null) { 544 return r.replace(re, '$jc$.board.mathLib.' + vname); 545 } 546 } 547 if (Type.exists(this.board.mathLibJXG)) { 548 // Handle builtin case: factorial(x) -> JXG.Math.factorial 549 re = new RegExp('^JXG\.Math\.'); 550 if (re.exec(r) !== null) { 551 return r.replace(re, '$jc$.board.mathLibJXG.'); 552 } 553 return r; 554 } 555 /* eslint-enable no-useless-escape */ 556 return r; 557 558 // return this.builtIn[vname].src || this.builtIn[vname]; 559 } 560 561 if (this.isMathMethod(vname)) { 562 return '$jc$.board.mathLib.' + vname; 563 // return 'Math.' + vname; 564 } 565 566 // if (!local) { 567 // if (Type.isId(this.board, vname)) { 568 // r = '$jc$.board.objects[\'' + vname + '\']'; 569 // } else if (Type.isName(this.board, vname)) { 570 // r = '$jc$.board.elementsByName[\'' + vname + '\']'; 571 // } else if (Type.isGroup(this.board, vname)) { 572 // r = '$jc$.board.groups[\'' + vname + '\']'; 573 // } 574 575 // return r; 576 // } 577 if (!local) { 578 if (Type.isId(this.board, vname)) { 579 r = '$jc$.board.objects[\'' + vname + '\']'; 580 if (this.board.objects[vname].elType === 'slider') { 581 r += '.Value()'; 582 } 583 } else if (Type.isName(this.board, vname)) { 584 r = '$jc$.board.elementsByName[\'' + vname + '\']'; 585 if (this.board.elementsByName[vname].elType === 'slider') { 586 r += '.Value()'; 587 } 588 } else if (Type.isGroup(this.board, vname)) { 589 r = '$jc$.board.groups[\'' + vname + '\']'; 590 } 591 592 return r; 593 } 594 595 return ''; 596 }, 597 598 /** 599 * Adds the property <tt>isMap</tt> to a function and sets it to true. 600 * @param {function} f 601 * @returns {function} 602 */ 603 makeMap: function (f) { 604 f.isMap = true; 605 606 return f; 607 }, 608 609 functionCodeJS: function (node) { 610 var p = node.children[0].join(', '), 611 bo = '', 612 bc = ''; 613 614 if (node.value === 'op_map') { 615 bo = '{ return '; 616 bc = ' }'; 617 } 618 619 return 'function (' + p + ') {\n' + 620 'var $oldscope$ = $jc$.scope;\n' + 621 '$jc$.scope = $jc$.scopes[' + this.scope.id + '];\n' + 622 'var r = (function () ' + bo + this.compile(node.children[1], true) + bc + ')();\n' + 623 '$jc$.scope = $oldscope$;\n' + 624 'return r;\n' + 625 '}'; 626 }, 627 628 /** 629 * Converts a node type <tt>node_op</tt> and value <tt>op_map</tt> or <tt>op_function</tt> into a executable 630 * function. Does a simple type inspection. 631 * @param {Object} node 632 * @returns {function} 633 * @see JXG.JessieCode#resolveType 634 */ 635 defineFunction: function (node) { 636 var fun, i, that = this, 637 list = node.children[0], 638 scope = this.pushScope(list); 639 640 if (this.board.options.jc.compile) { 641 this.isLHS = false; 642 643 // we currently need to put the parameters into the local scope 644 // until the compiled JS variable lookup code is fixed 645 for (i = 0; i < list.length; i++) { 646 scope.locals[list[i]] = list[i]; 647 } 648 649 this.replaceNames(node.children[1]); 650 651 /** @ignore */ 652 fun = (function (jc) { 653 var fun, 654 // str = 'var f = ' + $jc$.functionCodeJS(node) + '; f;'; 655 str = 'var f = function($jc$) { return ' + 656 jc.functionCodeJS(node) + 657 '}; f;'; 658 659 try { 660 // yeah, eval is evil, but we don't have much choice here. 661 // the str is well defined and there is no user input in it that we didn't check before 662 663 /*jslint evil:true*/ 664 // fun = eval(str); 665 fun = eval(str)(jc); 666 /*jslint evil:false*/ 667 668 scope.argtypes = []; 669 for (i = 0; i < list.length; i++) { 670 scope.argtypes.push(that.resolveType(list[i], node)); 671 } 672 673 return fun; 674 } catch (e) { 675 // $jc$._warn('error compiling function\n\n' + str + '\n\n' + e.toString()); 676 jc._warn("error compiling function\n\n" + str + "\n\n" + e.toString()); 677 return function () { }; 678 } 679 }(this)); 680 681 // clean up scope 682 this.popScope(); 683 } else { 684 /** @ignore */ 685 fun = (function (_pstack, that, id) { 686 return function () { 687 var r, oldscope; 688 689 oldscope = that.scope; 690 that.scope = that.scopes[id]; 691 692 for (r = 0; r < _pstack.length; r++) { 693 that.scope.locals[_pstack[r]] = arguments[r]; 694 } 695 696 r = that.execute(node.children[1]); 697 that.scope = oldscope; 698 699 return r; 700 }; 701 }(list, this, scope.id)); 702 } 703 704 fun.node = node; 705 fun.scope = scope; 706 fun.toJS = fun.toString; 707 fun.toString = (function (_that) { 708 return function () { 709 return _that.compile(_that.replaceIDs(Type.deepCopy(node))); 710 }; 711 }(this)); 712 713 fun.deps = {}; 714 this.collectDependencies(node.children[1], node.children[0], fun.deps); 715 716 return fun; 717 }, 718 719 /** 720 * Merge all attribute values given with an element creator into one object. 721 * @param {Object} o An arbitrary number of objects 722 * @returns {Object} All given objects merged into one. If properties appear in more (case sensitive) than one 723 * object the last value is taken. 724 */ 725 mergeAttributes: function (o) { 726 var i, attr = {}; 727 728 for (i = 0; i < arguments.length; i++) { 729 attr = Type.deepCopy(attr, arguments[i], true); 730 } 731 732 return attr; 733 }, 734 735 /** 736 * Sets the property <tt>what</tt> of <tt>o</tt> to <tt>value</tt> 737 * @param {JXG.Point|JXG.Text} o 738 * @param {String} what 739 * @param value 740 */ 741 setProp: function (o, what, value) { 742 var par = {}, x, y; 743 744 if (o.elementClass === Const.OBJECT_CLASS_POINT && (what === 'X' || what === 'Y')) { 745 // set coords 746 747 what = what.toLowerCase(); 748 749 // we have to deal with three cases here: 750 // o.isDraggable && typeof value === number: 751 // stay draggable, just set the new coords (e.g. via moveTo) 752 // o.isDraggable && typeof value === function: 753 // convert to !o.isDraggable, set the new coords via o.addConstraint() 754 // !o.isDraggable: 755 // stay !o.isDraggable, update the given coord by overwriting X/YEval 756 757 if (o.isDraggable && typeof value === 'number') { 758 x = what === 'x' ? value : o.X(); 759 y = what === 'y' ? value : o.Y(); 760 761 o.setPosition(Const.COORDS_BY_USER, [x, y]); 762 } else if (o.isDraggable && (typeof value === 'function' || typeof value === 'string')) { 763 x = what === 'x' ? value : o.coords.usrCoords[1]; 764 y = what === 'y' ? value : o.coords.usrCoords[2]; 765 766 o.addConstraint([x, y]); 767 } else if (!o.isDraggable) { 768 x = what === 'x' ? value : o.XEval.origin; 769 y = what === 'y' ? value : o.YEval.origin; 770 771 o.addConstraint([x, y]); 772 } 773 774 this.board.update(); 775 } else if (o.elementClass === Const.OBJECT_CLASS_TEXT && (what === 'X' || what === 'Y')) { 776 if (typeof value === 'number') { 777 o[what] = function () { return value; }; 778 } else if (typeof value === 'function') { 779 o.isDraggable = false; 780 o[what] = value; 781 } else if (typeof value === 'string') { 782 o.isDraggable = false; 783 o[what] = Type.createFunction(value, this.board); 784 o[what + 'jc'] = value; 785 } 786 787 o[what].origin = value; 788 789 this.board.update(); 790 } else if (o.type && o.elementClass && o.visProp) { 791 if (Type.exists(o[o.methodMap[what]]) && typeof o[o.methodMap[what]] !== 'function') { 792 o[o.methodMap[what]] = value; 793 } else { 794 par[what] = value; 795 o.setAttribute(par); 796 } 797 } else { 798 o[what] = value; 799 } 800 }, 801 802 /** 803 * Generic method to parse JessieCode. 804 * This consists of generating an AST with parser.parse, 805 * apply simplifying rules from CA and 806 * manipulate the AST according to the second parameter "cmd". 807 * @param {String} code JessieCode code to be parsed 808 * @param {String} cmd Type of manipulation to be done with AST 809 * @param {Boolean} [geonext=false] Geonext compatibility mode. 810 * @param {Boolean} [dontstore=false] If false, the code string is stored in this.code, 811 * i.e. in the JessieCode object, e.g. in board.jc. 812 * @return {Object} Returns result of computation as directed in cmd. 813 */ 814 _genericParse: function (code, cmd, geonext, dontstore) { 815 var i, setTextBackup, ast, result, 816 ccode = code.replace(/\r\n/g, '\n').split('\n'), 817 cleaned = []; 818 819 if (!dontstore) { 820 this.code += code + '\n'; 821 } 822 823 if (Text) { 824 setTextBackup = Text.prototype.setText; 825 Text.prototype.setText = Text.prototype.setTextJessieCode; 826 } 827 828 try { 829 if (!Type.exists(geonext)) { 830 geonext = false; 831 } 832 833 for (i = 0; i < ccode.length; i++) { 834 if (geonext) { 835 ccode[i] = JXG.GeonextParser.geonext2JS(ccode[i], this.board); 836 } 837 cleaned.push(ccode[i]); 838 } 839 840 code = cleaned.join('\n'); 841 ast = parser.parse(code); 842 if (this.CA) { 843 ast = this.CA.expandDerivatives(ast, null, ast); 844 ast = this.CA.removeTrivialNodes(ast); 845 } 846 switch (cmd) { 847 case 'parse': 848 result = this.execute(ast); 849 break; 850 case 'manipulate': 851 result = this.compile(ast); 852 break; 853 case 'getAst': 854 result = ast; 855 break; 856 default: 857 result = false; 858 } 859 } catch (e) { // catch is mandatory in old IEs 860 // console.log(e); 861 // We throw the error again, 862 // so the user can catch it. 863 throw e; 864 } finally { 865 // make sure the original text method is back in place 866 if (Text) { 867 Text.prototype.setText = setTextBackup; 868 } 869 } 870 871 return result; 872 }, 873 874 /** 875 * Parses JessieCode. 876 * This consists of generating an AST with parser.parse, apply simplifying rules 877 * from CA and executing the ast by calling this.execute(ast). 878 * 879 * @param {String} code JessieCode code to be parsed 880 * @param {Boolean} [geonext=false] Geonext compatibility mode. 881 * @param {Boolean} [dontstore=false] If false, the code string is stored in this.code. 882 * @return {Object} Parse JessieCode code and execute it. 883 */ 884 parse: function (code, geonext, dontstore) { 885 return this._genericParse(code, 'parse', geonext, dontstore); 886 }, 887 888 /** 889 * Manipulate JessieCode. 890 * This consists of generating an AST with parser.parse, 891 * apply simplifying rules from CA 892 * and compile the AST back to JessieCode. 893 * 894 * @param {String} code JessieCode code to be parsed 895 * @param {Boolean} [geonext=false] Geonext compatibility mode. 896 * @param {Boolean} [dontstore=false] If false, the code string is stored in this.code. 897 * @return {String} Simplified JessieCode code 898 */ 899 manipulate: function (code, geonext, dontstore) { 900 return this._genericParse(code, 'manipulate', geonext, dontstore); 901 }, 902 903 /** 904 * Get abstract syntax tree (AST) from JessieCode code. 905 * This consists of generating an AST with parser.parse. 906 * 907 * @param {String} code 908 * @param {Boolean} [geonext=false] Geonext compatibility mode. 909 * @param {Boolean} [dontstore=false] If false, the code string is stored in this.code. 910 * @return {Node} AST 911 */ 912 getAST: function (code, geonext, dontstore) { 913 return this._genericParse(code, 'getAst', geonext, dontstore); 914 }, 915 916 /** 917 * Parses a JessieCode snippet, e.g. "3+4", and wraps it into a function, if desired. 918 * @param {String} code A small snippet of JessieCode. Must not be an assignment. 919 * @param {Boolean} [funwrap=true] If true, the code is wrapped in a function. 920 * @param {String} [varname=''] Name of the parameter(s) 921 * @param {Boolean} [geonext=false] Geonext compatibility mode. 922 * @param {Boolean} [forceValueCall=true] Force evaluation of value method of sliders. 923 */ 924 snippet: function (code, funwrap, varname, geonext, forceValueCall) { 925 var c; 926 927 funwrap = Type.def(funwrap, true); 928 varname = Type.def(varname, ''); 929 geonext = Type.def(geonext, false); 930 this.forceValueCall = Type.def(forceValueCall, true); 931 932 c = (funwrap ? ' function (' + varname + ') { return ' : '') + 933 code + 934 (funwrap ? '; }' : '') + ';'; 935 936 return this.parse(c, geonext, true); 937 }, 938 939 /** 940 * Traverses through the given subtree and changes all values of nodes with the replaced flag set by 941 * {@link JXG.JessieCode#replaceNames} to the name of the element (if not empty). 942 * @param {Object} node 943 */ 944 replaceIDs: function (node) { 945 var i, v; 946 947 if (node.replaced) { 948 // These children exist, if node.replaced is set. 949 v = this.board.objects[node.children[1][0].value]; 950 951 if (Type.exists(v) && v.name !== "") { 952 node.type = 'node_var'; 953 node.value = v.name; 954 955 // Maybe it's not necessary, but just to be sure that everything is cleaned up we better delete all 956 // children and the replaced flag 957 node.children.length = 0; 958 delete node.replaced; 959 } 960 } 961 962 if (Type.isArray(node)) { 963 for (i = 0; i < node.length; i++) { 964 node[i] = this.replaceIDs(node[i]); 965 } 966 } 967 968 if (node.children) { 969 // assignments are first evaluated on the right hand side 970 for (i = node.children.length; i > 0; i--) { 971 if (Type.exists(node.children[i - 1])) { 972 node.children[i - 1] = this.replaceIDs(node.children[i - 1]); 973 } 974 975 } 976 } 977 978 return node; 979 }, 980 981 /** 982 * Traverses through the given subtree and changes all elements referenced by names through referencing them by ID. 983 * An identifier is only replaced if it is not found in all scopes above the current scope and if it 984 * has not been blacklisted within the codeblock determined by the given subtree. 985 * @param {Object} node 986 * @param {Boolean} [callValuePar=false] if true, uses $value() instead of $() in createReplacementNode 987 */ 988 replaceNames: function (node, callValuePar) { 989 var i, v, 990 callValue = false; 991 992 if (callValuePar !== undefined) { 993 callValue = callValuePar; 994 } 995 996 v = node.value; 997 998 // We are interested only in nodes of type node_var and node_op > op_lhs. 999 // Currently, we are not checking if the id is a local variable. in this case, we're stuck anyway. 1000 1001 if (node.type === 'node_op' && v === 'op_lhs' && node.children.length === 1) { 1002 this.isLHS = true; 1003 } else if (node.type === 'node_var') { 1004 if (this.isLHS) { 1005 this.letvar(v, true); 1006 } else if (!Type.exists(this.getvar(v, true)) && Type.exists(this.board.elementsByName[v])) { 1007 if (callValue && this.board.elementsByName[v].elType !== 'slider') { 1008 callValue = false; 1009 } 1010 node = this.createReplacementNode(node, callValue); 1011 } 1012 } 1013 1014 if (Type.isArray(node)) { 1015 for (i = 0; i < node.length; i++) { 1016 node[i] = this.replaceNames(node[i], callValue); 1017 } 1018 } 1019 1020 if (node.children) { 1021 // Replace slider reference by call of slider.Value() 1022 if (this.forceValueCall && // It must be enforced, see snippet. 1023 ( 1024 // 1. case: sin(a), max(a, 0), ... 1025 (node.value === "op_execfun" && 1026 // Not in cases V(a), $(a) 1027 node.children[0].value !== 'V' && node.children[0].value !== '$' && 1028 // Function must be a math function. This ensures that a number is required as input. 1029 (Type.exists(Math[node.children[0].value]) || Type.exists(Mat[node.children[0].value])) && 1030 // node.children[1].length === 1 && 1031 node.children[1][0].type === 'node_var' 1032 ) || 1033 // 2. case: slider is the whole expression: 'a' 1034 (node.value === "op_return" && 1035 node.children.length === 1 && 1036 node.children[0].type === 'node_var' 1037 ) 1038 ) 1039 ) { 1040 callValue = true; 1041 } 1042 1043 // Assignments are first evaluated on the right hand side 1044 for (i = node.children.length; i > 0; i--) { 1045 if (Type.exists(node.children[i - 1])) { 1046 node.children[i - 1] = this.replaceNames(node.children[i - 1], callValue); 1047 } 1048 } 1049 } 1050 1051 if (node.type === 'node_op' && node.value === 'op_lhs' && node.children.length === 1) { 1052 this.isLHS = false; 1053 } 1054 1055 return node; 1056 }, 1057 1058 /** 1059 * Replaces node_var nodes with node_op>op_execfun nodes, calling the internal $() function with the id of the 1060 * element accessed by the node_var node. 1061 * @param {Object} node 1062 * @param {Boolean} [callValue=undefined] if true, uses $value() instead of $() 1063 * @returns {Object} op_execfun node 1064 */ 1065 createReplacementNode: function (node, callValue) { 1066 var v = node.value, 1067 el = this.board.elementsByName[v]; 1068 1069 // If callValue: get handle to this node_var and call its Value method. 1070 // Otherwise return the object. 1071 node = this.createNode('node_op', 'op_execfun', 1072 this.createNode('node_var', (callValue === true ? '$value' : '$')), 1073 [this.createNode('node_str', el.id)]); 1074 1075 node.replaced = true; 1076 1077 return node; 1078 }, 1079 1080 /** 1081 * Search the parse tree below <tt>node</tt> for <em>stationary</em> dependencies, i.e. dependencies hard coded into 1082 * the function. 1083 * @param {Object} node 1084 * @param {Array} varnames List of variable names of the function 1085 * @param {Object} result An object where the referenced elements will be stored. Access key is their id. 1086 */ 1087 collectDependencies: function (node, varnames, result) { 1088 var i, v, e, le; 1089 1090 if (Type.isArray(node)) { 1091 le = node.length; 1092 for (i = 0; i < le; i++) { 1093 this.collectDependencies(node[i], varnames, result); 1094 } 1095 return; 1096 } 1097 1098 v = node.value; 1099 1100 if (node.type === 'node_var' && 1101 varnames.indexOf(v) < 0 // v is not contained in the list of variables of that function 1102 ) { 1103 e = this.getvar(v); 1104 if (e && e.visProp && e.elType && e.elementClass && e.id && 1105 e.elType === 'slider' // Sliders are the only elements which are given by names. 1106 ) { 1107 result[e.id] = e; 1108 } 1109 } 1110 1111 // The $()-function-calls are special because their parameter is given as a string, not as a node_var. 1112 if (node.type === 'node_op' && node.value === 'op_execfun' && 1113 node.children.length > 1 && 1114 (node.children[0].value === '$' || node.children[0].value === '$value') && 1115 node.children[1].length > 0) { 1116 1117 e = node.children[1][0].value; 1118 result[e] = this.board.objects[e]; 1119 } 1120 1121 if (node.children) { 1122 for (i = node.children.length; i > 0; i--) { 1123 if (Type.exists(node.children[i - 1])) { 1124 this.collectDependencies(node.children[i - 1], varnames, result); 1125 } 1126 } 1127 } 1128 }, 1129 1130 resolveProperty: function (e, v, compile) { 1131 compile = Type.def(compile, false); 1132 1133 // is it a geometry element or a board? 1134 if (e /*&& e.type && e.elementClass*/ && e.methodMap) { 1135 // yeah, it is. but what does the user want? 1136 if (Type.exists(e.subs) && Type.exists(e.subs[v])) { 1137 // a subelement it is, good sir. 1138 e = e.subs; 1139 } else if (Type.exists(e.methodMap[v])) { 1140 // the user wants to call a method 1141 v = e.methodMap[v]; 1142 } else { 1143 // the user wants to change an attribute 1144 e = e.visProp; 1145 v = v.toLowerCase(); 1146 } 1147 } 1148 1149 if (Type.isFunction(e)) { 1150 this._error('Accessing function properties is not allowed.'); 1151 } 1152 1153 if (!Type.exists(e)) { 1154 this._error(e + ' is not an object'); 1155 } 1156 1157 if (!Type.exists(e[v])) { 1158 this._error('unknown property ' + v); 1159 } 1160 1161 if (compile && typeof e[v] === 'function') { 1162 return function () { return e[v].apply(e, arguments); }; 1163 } 1164 1165 return e[v]; 1166 }, 1167 1168 /** 1169 * Type inspection: check if the string vname appears as function name in the 1170 * AST node. Used in "op_execfun". This allows the JessieCode examples below. 1171 * 1172 * @private 1173 * @param {String} vname 1174 * @param {Object} node 1175 * @returns 'any' or 'function' 1176 * @see JXG.JessieCode#execute 1177 * @see JXG.JessieCode#getvar 1178 * 1179 * @example 1180 * var p = board.create('point', [2, 0], {name: 'X'}); 1181 * var txt = 'X(X)'; 1182 * console.log(board.jc.parse(txt)); 1183 * 1184 * @example 1185 * var p = board.create('point', [2, 0], {name: 'X'}); 1186 * var txt = 'f = function(el, X) { return X(el); }; f(X, X);'; 1187 * console.log(board.jc.parse(txt)); 1188 * 1189 * @example 1190 * var p = board.create('point', [2, 0], {name: 'point'}); 1191 * var txt = 'B = point(1,3); X(point);'; 1192 * console.log(board.jc.parse(txt)); 1193 * 1194 * @example 1195 * var p = board.create('point', [2, 0], {name: 'A'}); 1196 * var q = board.create('point', [-2, 0], {name: 'X'}); 1197 * var txt = 'getCoord=function(p, f){ return f(p); }; getCoord(A, X);'; 1198 * console.log(board.jc.parse(txt)); 1199 */ 1200 resolveType: function (vname, node) { 1201 var i, t, 1202 type = 'any'; // Possible values: 'function', 'any' 1203 1204 if (Type.isArray(node)) { 1205 // node contains the parameters of a function call or function declaration 1206 for (i = 0; i < node.length; i++) { 1207 t = this.resolveType(vname, node[i]); 1208 if (t !== 'any') { 1209 type = t; 1210 return type; 1211 } 1212 } 1213 } 1214 1215 if (node.type === 'node_op' && node.value === 'op_execfun' && 1216 node.children[0].type === 'node_var' && node.children[0].value === vname) { 1217 return 'function'; 1218 } 1219 1220 if (node.type === 'node_op') { 1221 for (i = 0; i < node.children.length; i++) { 1222 if (node.children[0].type === 'node_var' && node.children[0].value === vname && 1223 (node.value === 'op_add' || node.value === 'op_sub' || node.value === 'op_mul' || 1224 node.value === 'op_div' || node.value === 'op_mod' || node.value === 'op_exp' || 1225 node.value === 'op_neg')) { 1226 return 'any'; 1227 } 1228 } 1229 1230 for (i = 0; i < node.children.length; i++) { 1231 t = this.resolveType(vname, node.children[i]); 1232 if (t !== 'any') { 1233 type = t; 1234 return type; 1235 } 1236 } 1237 } 1238 1239 return 'any'; 1240 }, 1241 1242 /** 1243 * Resolves the lefthand side of an assignment operation 1244 * @param node 1245 * @returns {Object} An object with two properties. <strong>o</strong> which contains the object, and 1246 * a string <strong>what</strong> which contains the property name. 1247 */ 1248 getLHS: function (node) { 1249 var res; 1250 1251 if (node.type === 'node_var') { 1252 res = { 1253 o: this.scope.locals, 1254 what: node.value 1255 }; 1256 } else if (node.type === 'node_op' && node.value === 'op_property') { 1257 res = { 1258 o: this.execute(node.children[0]), 1259 what: node.children[1] 1260 }; 1261 } else if (node.type === 'node_op' && node.value === 'op_extvalue') { 1262 res = { 1263 o: this.execute(node.children[0]), 1264 what: this.execute(node.children[1]) 1265 }; 1266 } else { 1267 throw new Error('Syntax error: Invalid left-hand side of assignment.'); 1268 } 1269 1270 return res; 1271 }, 1272 1273 getLHSCompiler: function (node, js) { 1274 var res; 1275 1276 if (node.type === 'node_var') { 1277 res = node.value; 1278 } else if (node.type === 'node_op' && node.value === 'op_property') { 1279 res = [ 1280 this.compile(node.children[0], js), 1281 "'" + node.children[1] + "'" 1282 ]; 1283 } else if (node.type === 'node_op' && node.value === 'op_extvalue') { 1284 res = [ 1285 this.compile(node.children[0], js), 1286 node.children[1].type === 'node_const' ? node.children[1].value : this.compile(node.children[1], js) 1287 ]; 1288 } else { 1289 throw new Error('Syntax error: Invalid left-hand side of assignment.'); 1290 } 1291 1292 return res; 1293 }, 1294 1295 /** 1296 * Executes a parse subtree. 1297 * @param {Object} node 1298 * @returns {Number|String|Object|Boolean} Something 1299 * @private 1300 */ 1301 execute: function (node) { 1302 var ret, v, i, e, l, undef, list, ilist, 1303 parents = [], 1304 // exec fun 1305 fun, attr, sc; 1306 1307 ret = 0; 1308 1309 if (!node) { 1310 return ret; 1311 } 1312 1313 this.line = node.line; 1314 this.col = node.col; 1315 1316 switch (node.type) { 1317 case 'node_op': 1318 switch (node.value) { 1319 case 'op_none': 1320 if (node.children[0]) { 1321 this.execute(node.children[0]); 1322 } 1323 if (node.children[1]) { 1324 ret = this.execute(node.children[1]); 1325 } 1326 break; 1327 case 'op_assign': 1328 v = this.getLHS(node.children[0]); 1329 this.lhs[this.scope.id] = v.what; 1330 1331 if (v.o.type && v.o.elementClass && v.o.methodMap && v.what === 'label') { 1332 this._error('Left-hand side of assignment is read-only.'); 1333 } 1334 1335 ret = this.execute(node.children[1]); 1336 if (v.o !== this.scope.locals || (Type.isArray(v.o) && typeof v.what === 'number')) { 1337 // it is either an array component being set or a property of an object. 1338 this.setProp(v.o, v.what, ret); 1339 } else { 1340 // this is just a local variable inside JessieCode 1341 this.letvar(v.what, ret); 1342 } 1343 this.lhs[this.scope.id] = 0; 1344 break; 1345 case 'op_if': 1346 if (this.execute(node.children[0])) { 1347 ret = this.execute(node.children[1]); 1348 } 1349 break; 1350 case 'op_conditional': 1351 // fall through 1352 case 'op_if_else': 1353 if (this.execute(node.children[0])) { 1354 ret = this.execute(node.children[1]); 1355 } else { 1356 ret = this.execute(node.children[2]); 1357 } 1358 break; 1359 case 'op_while': 1360 while (this.execute(node.children[0])) { 1361 this.execute(node.children[1]); 1362 } 1363 break; 1364 case 'op_do': 1365 do { 1366 this.execute(node.children[0]); 1367 } while (this.execute(node.children[1])); 1368 break; 1369 case 'op_for': 1370 for (this.execute(node.children[0]); this.execute(node.children[1]); this.execute(node.children[2])) { 1371 this.execute(node.children[3]); 1372 } 1373 break; 1374 case 'op_proplst': 1375 if (node.children[0]) { 1376 this.execute(node.children[0]); 1377 } 1378 if (node.children[1]) { 1379 this.execute(node.children[1]); 1380 } 1381 break; 1382 case 'op_emptyobject': 1383 ret = {}; 1384 break; 1385 case 'op_proplst_val': 1386 this.propstack.push({}); 1387 this.propscope++; 1388 1389 this.execute(node.children[0]); 1390 ret = this.propstack[this.propscope]; 1391 1392 this.propstack.pop(); 1393 this.propscope--; 1394 break; 1395 case 'op_prop': 1396 // child 0: Identifier 1397 // child 1: Value 1398 this.propstack[this.propscope][node.children[0]] = this.execute(node.children[1]); 1399 break; 1400 case 'op_array': 1401 ret = []; 1402 l = node.children[0].length; 1403 1404 for (i = 0; i < l; i++) { 1405 ret.push(this.execute(node.children[0][i])); 1406 } 1407 1408 break; 1409 case 'op_extvalue': 1410 ret = this.execute(node.children[0]); 1411 i = this.execute(node.children[1]); 1412 1413 if (typeof i === 'number' && Math.abs(Math.round(i) - i) < Mat.eps) { 1414 ret = ret[i]; 1415 } else { 1416 ret = undef; 1417 } 1418 break; 1419 case 'op_return': 1420 if (this.scope === 0) { 1421 this._error('Unexpected return.'); 1422 } else { 1423 return this.execute(node.children[0]); 1424 } 1425 break; 1426 case 'op_map': 1427 if (!node.children[1].isMath && node.children[1].type !== 'node_var') { 1428 this._error('execute: In a map only function calls and mathematical expressions are allowed.'); 1429 } 1430 1431 /** @ignore */ 1432 fun = this.defineFunction(node); 1433 fun.isMap = true; 1434 1435 ret = fun; 1436 break; 1437 case 'op_function': 1438 // parse the parameter list 1439 // after this, the parameters are in pstack 1440 1441 /** @ignore */ 1442 fun = this.defineFunction(node); 1443 fun.isMap = false; 1444 1445 ret = fun; 1446 break; 1447 case 'op_execfun': 1448 // node.children: 1449 // [0]: Name of the function 1450 // [1]: Parameter list as a parse subtree 1451 // [2]: Properties, only used in case of a create function 1452 this.dpstack.push([]); 1453 this.pscope++; 1454 1455 // parameter parsing is done below 1456 list = node.children[1]; 1457 1458 // parse the properties only if given 1459 if (Type.exists(node.children[2])) { 1460 if (node.children[3]) { 1461 ilist = node.children[2]; 1462 attr = {}; 1463 1464 for (i = 0; i < ilist.length; i++) { 1465 attr = Type.deepCopy(attr, this.execute(ilist[i]), true); 1466 } 1467 } else { 1468 attr = this.execute(node.children[2]); 1469 } 1470 } 1471 1472 // look up the variables name in the variable table 1473 node.children[0]._isFunctionName = true; 1474 fun = this.execute(node.children[0]); 1475 delete node.children[0]._isFunctionName; 1476 1477 // determine the scope the function wants to run in 1478 if (Type.exists(fun) && Type.exists(fun.sc)) { 1479 sc = fun.sc; 1480 } else { 1481 sc = this; 1482 } 1483 1484 if (!fun.creator && Type.exists(node.children[2])) { 1485 this._error('Unexpected value. Only element creators are allowed to have a value after the function call.'); 1486 } 1487 1488 // interpret ALL the parameters 1489 for (i = 0; i < list.length; i++) { 1490 if (Type.exists(fun.scope) && Type.exists(fun.scope.argtypes) && fun.scope.argtypes[i] === 'function') { 1491 // Type inspection 1492 list[i]._isFunctionName = true; 1493 parents[i] = this.execute(list[i]); 1494 delete list[i]._isFunctionName; 1495 } else { 1496 parents[i] = this.execute(list[i]); 1497 } 1498 //parents[i] = Type.evalSlider(this.execute(list[i])); 1499 this.dpstack[this.pscope].push({ 1500 line: node.children[1][i].line, 1501 // SketchBin currently works only if the last column of the 1502 // parent position is taken. This is due to how I patched JS/CC 1503 // to count the lines and columns. So, ecol will do for now 1504 col: node.children[1][i].ecol 1505 }); 1506 } 1507 1508 // check for the function in the variable table 1509 if (typeof fun === 'function' && !fun.creator) { 1510 ret = fun.apply(sc, parents); 1511 } else if (typeof fun === 'function' && !!fun.creator) { 1512 e = this.line; 1513 1514 // creator methods are the only ones that take properties, hence this special case 1515 try { 1516 ret = fun(parents, attr); 1517 ret.jcLineStart = e; 1518 ret.jcLineEnd = node.eline; 1519 1520 for (i = e; i <= node.line; i++) { 1521 this.lineToElement[i] = ret; 1522 } 1523 1524 ret.debugParents = this.dpstack[this.pscope]; 1525 } catch (ex) { 1526 this._error(ex.toString()); 1527 } 1528 } else { 1529 this._error('Function \'' + fun + '\' is undefined.'); 1530 } 1531 1532 // clear parameter stack 1533 this.dpstack.pop(); 1534 this.pscope--; 1535 break; 1536 case 'op_property': 1537 e = this.execute(node.children[0]); 1538 v = node.children[1]; 1539 1540 ret = this.resolveProperty(e, v, false); 1541 1542 // set the scope, in case this is a method the user wants to call 1543 if (Type.exists(ret) && ['number', 'string', 'boolean'].indexOf(typeof ret) < 0) { 1544 ret.sc = e; 1545 } 1546 1547 break; 1548 case 'op_use': 1549 this._warn('Use of the \'use\' operator is deprecated.'); 1550 this.use(node.children[0].toString()); 1551 break; 1552 case 'op_delete': 1553 this._warn('Use of the \'delete\' operator is deprecated. Please use the remove() function.'); 1554 v = this.getvar(node.children[0]); 1555 ret = this.del(v); 1556 break; 1557 case 'op_eq': 1558 // == is intentional 1559 /*jslint eqeq:true*/ 1560 /* eslint-disable eqeqeq */ 1561 ret = this.execute(node.children[0]) == this.execute(node.children[1]); 1562 /*jslint eqeq:false*/ 1563 /* eslint-enable eqeqeq */ 1564 break; 1565 case 'op_neq': 1566 // != is intentional 1567 /*jslint eqeq:true*/ 1568 /* eslint-disable eqeqeq */ 1569 ret = this.execute(node.children[0]) != this.execute(node.children[1]); 1570 /*jslint eqeq:true*/ 1571 /* eslint-enable eqeqeq */ 1572 break; 1573 case 'op_approx': 1574 ret = Math.abs(this.execute(node.children[0]) - this.execute(node.children[1])) < Mat.eps; 1575 break; 1576 case 'op_gt': 1577 ret = this.execute(node.children[0]) > this.execute(node.children[1]); 1578 break; 1579 case 'op_lt': 1580 ret = this.execute(node.children[0]) < this.execute(node.children[1]); 1581 break; 1582 case 'op_geq': 1583 ret = this.execute(node.children[0]) >= this.execute(node.children[1]); 1584 break; 1585 case 'op_leq': 1586 ret = this.execute(node.children[0]) <= this.execute(node.children[1]); 1587 break; 1588 case 'op_or': 1589 ret = this.execute(node.children[0]) || this.execute(node.children[1]); 1590 break; 1591 case 'op_and': 1592 ret = this.execute(node.children[0]) && this.execute(node.children[1]); 1593 break; 1594 case 'op_not': 1595 ret = !this.execute(node.children[0]); 1596 break; 1597 case 'op_add': 1598 ret = this.add(this.execute(node.children[0]), this.execute(node.children[1])); 1599 break; 1600 case 'op_sub': 1601 ret = this.sub(this.execute(node.children[0]), this.execute(node.children[1])); 1602 break; 1603 case 'op_div': 1604 ret = this.div(this.execute(node.children[0]), this.execute(node.children[1])); 1605 break; 1606 case 'op_mod': 1607 // use mathematical modulo, JavaScript implements the symmetric modulo. 1608 ret = this.mod(this.execute(node.children[0]), this.execute(node.children[1]), true); 1609 break; 1610 case 'op_mul': 1611 ret = this.mul(this.execute(node.children[0]), this.execute(node.children[1])); 1612 break; 1613 case 'op_exp': 1614 ret = this.pow(this.execute(node.children[0]), this.execute(node.children[1])); 1615 break; 1616 case 'op_neg': 1617 ret = this.neg(this.execute(node.children[0])); 1618 break; 1619 } 1620 break; 1621 1622 case 'node_var': 1623 // node._isFunctionName is set in execute: at op_execfun. 1624 ret = this.getvar(node.value, false, node._isFunctionName); 1625 break; 1626 1627 case 'node_const': 1628 if (node.value === null) { 1629 ret = null; 1630 } else { 1631 ret = Number(node.value); 1632 } 1633 break; 1634 1635 case 'node_const_bool': 1636 ret = node.value; 1637 break; 1638 1639 case 'node_str': 1640 //ret = node.value.replace(/\\'/, "'").replace(/\\"/, '"').replace(/\\\\/, '\\'); 1641 /*jslint regexp:true*/ 1642 ret = node.value.replace(/\\(.)/g, '$1'); // Remove backslash, important in JessieCode tags 1643 /*jslint regexp:false*/ 1644 break; 1645 } 1646 1647 return ret; 1648 }, 1649 1650 /** 1651 * Compiles a parse tree back to JessieCode. 1652 * @param {Object} node 1653 * @param {Boolean} [js=false] Compile either to JavaScript or back to JessieCode (required for the UI). 1654 * @returns Something 1655 * @private 1656 */ 1657 compile: function (node, js) { 1658 var e, i, list, scope, 1659 ret = ''; 1660 1661 if (!Type.exists(js)) { 1662 js = false; 1663 } 1664 1665 if (!node) { 1666 return ret; 1667 } 1668 1669 switch (node.type) { 1670 case 'node_op': 1671 switch (node.value) { 1672 case 'op_none': 1673 if (node.children[0]) { 1674 ret = this.compile(node.children[0], js); 1675 } 1676 if (node.children[1]) { 1677 ret += this.compile(node.children[1], js); 1678 } 1679 break; 1680 case 'op_assign': 1681 //e = this.compile(node.children[0], js); 1682 if (js) { 1683 e = this.getLHSCompiler(node.children[0], js); 1684 if (Type.isArray(e)) { 1685 ret = '$jc$.setProp(' + e[0] + ', ' + e[1] + ', ' + this.compile(node.children[1], js) + ');\n'; 1686 } else { 1687 if (this.isLocalVariable(e) !== this.scope) { 1688 this.scope.locals[e] = true; 1689 } 1690 ret = '$jc$.scopes[' + this.scope.id + '].locals[\'' + e + '\'] = ' + this.compile(node.children[1], js) + ';\n'; 1691 } 1692 } else { 1693 e = this.compile(node.children[0]); 1694 ret = e + ' = ' + this.compile(node.children[1], js) + ';\n'; 1695 } 1696 break; 1697 case 'op_if': 1698 ret = ' if (' + this.compile(node.children[0], js) + ') ' + this.compile(node.children[1], js); 1699 break; 1700 case 'op_if_else': 1701 ret = ' if (' + this.compile(node.children[0], js) + ')' + this.compile(node.children[1], js); 1702 ret += ' else ' + this.compile(node.children[2], js); 1703 break; 1704 case 'op_conditional': 1705 ret = '((' + this.compile(node.children[0], js) + ')?(' + this.compile(node.children[1], js); 1706 ret += '):(' + this.compile(node.children[2], js) + '))'; 1707 break; 1708 case 'op_while': 1709 ret = ' while (' + this.compile(node.children[0], js) + ') {\n' + this.compile(node.children[1], js) + '}\n'; 1710 break; 1711 case 'op_do': 1712 ret = ' do {\n' + this.compile(node.children[0], js) + '} while (' + this.compile(node.children[1], js) + ');\n'; 1713 break; 1714 case 'op_for': 1715 //ret = ' for (' + this.compile(node.children[0], js) + '; ' + this.compile(node.children[1], js) + '; ' + this.compile(node.children[2], js) + ') {\n' + this.compile(node.children[3], js) + '\n}\n'; 1716 ret = ' for (' + this.compile(node.children[0], js) + // Assignment ends with ";" 1717 this.compile(node.children[1], js) + '; ' + // Logical test comes without ";" 1718 this.compile(node.children[2], js).slice(0, -2) + // Counting comes with ";" which has to be removed 1719 ') {\n' + this.compile(node.children[3], js) + '\n}\n'; 1720 break; 1721 case 'op_proplst': 1722 if (node.children[0]) { 1723 ret = this.compile(node.children[0], js) + ', '; 1724 } 1725 1726 ret += this.compile(node.children[1], js); 1727 break; 1728 case 'op_prop': 1729 // child 0: Identifier 1730 // child 1: Value 1731 ret = node.children[0] + ': ' + this.compile(node.children[1], js); 1732 break; 1733 case 'op_emptyobject': 1734 ret = js ? '{}' : '<< >>'; 1735 break; 1736 case 'op_proplst_val': 1737 ret = this.compile(node.children[0], js); 1738 break; 1739 case 'op_array': 1740 list = []; 1741 for (i = 0; i < node.children[0].length; i++) { 1742 list.push(this.compile(node.children[0][i], js)); 1743 } 1744 ret = '[' + list.join(', ') + ']'; 1745 break; 1746 case 'op_extvalue': 1747 ret = this.compile(node.children[0], js) + '[' + this.compile(node.children[1], js) + ']'; 1748 break; 1749 case 'op_return': 1750 ret = ' return ' + this.compile(node.children[0], js) + ';\n'; 1751 break; 1752 case 'op_map': 1753 if (!node.children[1].isMath && node.children[1].type !== 'node_var') { 1754 this._error('compile: In a map only function calls and mathematical expressions are allowed.'); 1755 } 1756 1757 list = node.children[0]; 1758 if (js) { 1759 ret = ' $jc$.makeMap(function (' + list.join(', ') + ') { return ' + this.compile(node.children[1], js) + '; })'; 1760 } else { 1761 ret = 'map (' + list.join(', ') + ') -> ' + this.compile(node.children[1], js); 1762 } 1763 1764 break; 1765 case 'op_function': 1766 list = node.children[0]; 1767 scope = this.pushScope(list); 1768 if (js) { 1769 ret = this.functionCodeJS(node); 1770 } else { 1771 ret = ' function (' + list.join(', ') + ') ' + this.compile(node.children[1], js); 1772 } 1773 this.popScope(); 1774 break; 1775 case 'op_execfunmath': 1776 console.log('op_execfunmath: TODO'); 1777 ret = '-1'; 1778 break; 1779 case 'op_execfun': 1780 // parse the properties only if given 1781 if (node.children[2]) { 1782 list = []; 1783 for (i = 0; i < node.children[2].length; i++) { 1784 list.push(this.compile(node.children[2][i], js)); 1785 } 1786 1787 if (js) { 1788 e = '$jc$.mergeAttributes(' + list.join(', ') + ')'; 1789 } else { 1790 e = list.join(', '); 1791 } 1792 } 1793 node.children[0].withProps = !!node.children[2]; 1794 list = []; 1795 for (i = 0; i < node.children[1].length; i++) { 1796 list.push(this.compile(node.children[1][i], js)); 1797 } 1798 ret = this.compile(node.children[0], js) + '(' + list.join(', ') + (node.children[2] && js ? ', ' + e : '') + ')' + (node.children[2] && !js ? ' ' + e : ''); 1799 if (js) { 1800 // Inserting a newline here allows simultaneously 1801 // - procedural calls like Q.moveTo(...); and 1802 // - function calls in expressions like log(x) + 1; 1803 // Problem: procedural calls will not be ended by a semicolon. 1804 ret += '\n'; 1805 } 1806 1807 // save us a function call when compiled to javascript 1808 if (js && node.children[0].value === '$') { 1809 ret = '$jc$.board.objects[' + this.compile(node.children[1][0], js) + ']'; 1810 } 1811 break; 1812 case 'op_property': 1813 if (js && node.children[1] !== 'X' && node.children[1] !== 'Y') { 1814 ret = '$jc$.resolveProperty(' + this.compile(node.children[0], js) + ', \'' + node.children[1] + '\', true)'; 1815 } else { 1816 ret = this.compile(node.children[0], js) + '.' + node.children[1]; 1817 } 1818 break; 1819 case 'op_use': 1820 this._warn('Use of the \'use\' operator is deprecated.'); 1821 if (js) { 1822 ret = '$jc$.use(\''; 1823 } else { 1824 ret = 'use(\''; 1825 } 1826 1827 ret += node.children[0].toString() + '\');'; 1828 break; 1829 case 'op_delete': 1830 this._warn('Use of the \'delete\' operator is deprecated. Please use the remove() function.'); 1831 if (js) { 1832 ret = '$jc$.del('; 1833 } else { 1834 ret = 'remove('; 1835 } 1836 1837 ret += this.compile(node.children[0], js) + ')'; 1838 break; 1839 case 'op_eq': 1840 ret = '(' + this.compile(node.children[0], js) + ' === ' + this.compile(node.children[1], js) + ')'; 1841 break; 1842 case 'op_neq': 1843 ret = '(' + this.compile(node.children[0], js) + ' !== ' + this.compile(node.children[1], js) + ')'; 1844 break; 1845 case 'op_approx': 1846 ret = '(' + this.compile(node.children[0], js) + ' ~= ' + this.compile(node.children[1], js) + ')'; 1847 break; 1848 case 'op_gt': 1849 if (js) { 1850 ret = '$jc$.gt(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1851 } else { 1852 ret = '(' + this.compile(node.children[0], js) + ' > ' + this.compile(node.children[1], js) + ')'; 1853 } 1854 break; 1855 case 'op_lt': 1856 if (js) { 1857 ret = '$jc$.lt(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1858 } else { 1859 ret = '(' + this.compile(node.children[0], js) + ' < ' + this.compile(node.children[1], js) + ')'; 1860 } 1861 break; 1862 case 'op_geq': 1863 if (js) { 1864 ret = '$jc$.geq(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1865 } else { 1866 ret = '(' + this.compile(node.children[0], js) + ' >= ' + this.compile(node.children[1], js) + ')'; 1867 } 1868 break; 1869 case 'op_leq': 1870 if (js) { 1871 ret = '$jc$.leq(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1872 } else { 1873 ret = '(' + this.compile(node.children[0], js) + ' <= ' + this.compile(node.children[1], js) + ')'; 1874 } 1875 break; 1876 case 'op_or': 1877 ret = '(' + this.compile(node.children[0], js) + ' || ' + this.compile(node.children[1], js) + ')'; 1878 break; 1879 case 'op_and': 1880 ret = '(' + this.compile(node.children[0], js) + ' && ' + this.compile(node.children[1], js) + ')'; 1881 break; 1882 case 'op_not': 1883 ret = '!(' + this.compile(node.children[0], js) + ')'; 1884 break; 1885 case 'op_add': 1886 if (js) { 1887 ret = '$jc$.add(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1888 } else { 1889 ret = '(' + this.compile(node.children[0], js) + ' + ' + this.compile(node.children[1], js) + ')'; 1890 } 1891 break; 1892 case 'op_sub': 1893 if (js) { 1894 ret = '$jc$.sub(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1895 } else { 1896 ret = '(' + this.compile(node.children[0], js) + ' - ' + this.compile(node.children[1], js) + ')'; 1897 } 1898 break; 1899 case 'op_div': 1900 if (js) { 1901 ret = '$jc$.div(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1902 } else { 1903 ret = '(' + this.compile(node.children[0], js) + ' / ' + this.compile(node.children[1], js) + ')'; 1904 } 1905 break; 1906 case 'op_mod': 1907 if (js) { 1908 ret = '$jc$.mod(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ', true)'; 1909 } else { 1910 ret = '(' + this.compile(node.children[0], js) + ' % ' + this.compile(node.children[1], js) + ')'; 1911 } 1912 break; 1913 case 'op_mul': 1914 if (js) { 1915 ret = '$jc$.mul(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1916 } else { 1917 ret = '(' + this.compile(node.children[0], js) + ' * ' + this.compile(node.children[1], js) + ')'; 1918 } 1919 break; 1920 case 'op_exp': 1921 if (js) { 1922 ret = '$jc$.pow(' + this.compile(node.children[0], js) + ', ' + this.compile(node.children[1], js) + ')'; 1923 } else { 1924 ret = '(' + this.compile(node.children[0], js) + '^' + this.compile(node.children[1], js) + ')'; 1925 } 1926 break; 1927 case 'op_neg': 1928 if (js) { 1929 ret = '$jc$.neg(' + this.compile(node.children[0], js) + ')'; 1930 } else { 1931 ret = '(-' + this.compile(node.children[0], js) + ')'; 1932 } 1933 break; 1934 } 1935 break; 1936 1937 case 'node_var': 1938 if (js) { 1939 ret = this.getvarJS(node.value, false, node.withProps); 1940 } else { 1941 ret = node.value; 1942 } 1943 break; 1944 1945 case 'node_const': 1946 ret = node.value; 1947 break; 1948 1949 case 'node_const_bool': 1950 ret = node.value; 1951 break; 1952 1953 case 'node_str': 1954 ret = '\'' + node.value + '\''; 1955 break; 1956 } 1957 1958 if (node.needsBrackets) { 1959 ret = '{\n' + ret + ' }\n'; 1960 } 1961 if (node.needsAngleBrackets) { 1962 if (js) { 1963 ret = '{\n' + ret + ' }\n'; 1964 } else { 1965 ret = '<< ' + ret + ' >>\n'; 1966 } 1967 } 1968 1969 return ret; 1970 }, 1971 1972 /** 1973 * This is used as the global getName() function. 1974 * @param {JXG.GeometryElement} obj 1975 * @param {Boolean} useId 1976 * @returns {String} 1977 */ 1978 getName: function (obj, useId) { 1979 var name = ''; 1980 1981 if (Type.exists(obj) && Type.exists(obj.getName)) { 1982 name = obj.getName(); 1983 if ((!Type.exists(name) || name === '') && useId) { 1984 name = obj.id; 1985 } 1986 } else if (useId) { 1987 name = obj.id; 1988 } 1989 1990 return name; 1991 }, 1992 1993 /** 1994 * This is used as the global X() function. 1995 * @param {JXG.Point|JXG.Text} e 1996 * @returns {Number} 1997 */ 1998 X: function (e) { 1999 return e.X(); 2000 }, 2001 2002 /** 2003 * This is used as the global Y() function. 2004 * @param {JXG.Point|JXG.Text} e 2005 * @returns {Number} 2006 */ 2007 Y: function (e) { 2008 return e.Y(); 2009 }, 2010 2011 /** 2012 * This is used as the global V() function. 2013 * @param {Glider|Slider} e 2014 * @returns {Number} 2015 */ 2016 V: function (e) { 2017 return e.Value(); 2018 }, 2019 2020 /** 2021 * This is used as the global L() function. 2022 * @param {JXG.Line} e 2023 * @returns {Number} 2024 */ 2025 L: function (e) { 2026 return e.L(); 2027 }, 2028 2029 /** 2030 * This is used as the global area() function. 2031 * @param {JXG.Circle|JXG.Polygon} obj 2032 * @returns {Number} 2033 */ 2034 area: function (obj) { 2035 if (!Type.exists(obj) || !Type.exists(obj.Area)) { 2036 this._error('Error: Can\'t calculate area.'); 2037 } 2038 2039 return obj.Area(); 2040 }, 2041 2042 /** 2043 * This is used as the global perimeter() function. 2044 * @param {JXG.Circle|JXG.Polygon} obj 2045 * @returns {Number} 2046 */ 2047 perimeter: function (obj) { 2048 if (!Type.exists(obj) || !Type.exists(obj.Perimeter)) { 2049 this._error('Error: Can\'t calculate perimeter.'); 2050 } 2051 2052 return obj.Perimeter(); 2053 }, 2054 2055 /** 2056 * This is used as the global dist() function. 2057 * @param {JXG.Point} p1 2058 * @param {JXG.Point} p2 2059 * @returns {Number} 2060 */ 2061 dist: function (p1, p2) { 2062 if (!Type.exists(p1) || !Type.exists(p1.Dist)) { 2063 this._error('Error: Can\'t calculate distance.'); 2064 } 2065 2066 return p1.Dist(p2); 2067 }, 2068 2069 /** 2070 * This is used as the global radius() function. 2071 * @param {JXG.Circle|Sector} obj 2072 * @returns {Number} 2073 */ 2074 radius: function (obj) { 2075 if (!Type.exists(obj) || !Type.exists(obj.Radius)) { 2076 this._error('Error: Can\'t calculate radius.'); 2077 } 2078 2079 return obj.Radius(); 2080 }, 2081 2082 /** 2083 * This is used as the global slope() function. 2084 * @param {JXG.Line} obj 2085 * @returns {Number} 2086 */ 2087 slope: function (obj) { 2088 if (!Type.exists(obj) || !Type.exists(obj.Slope)) { 2089 this._error('Error: Can\'t calculate slope.'); 2090 } 2091 2092 return obj.Slope(); 2093 }, 2094 2095 /** 2096 * + operator implementation 2097 * @param {Number|Array|JXG.Point} a 2098 * @param {Number|Array|JXG.Point} b 2099 * @returns {Number|Array} 2100 */ 2101 add: function (a, b) { 2102 var i, len, res; 2103 2104 a = Type.evalSlider(a); 2105 b = Type.evalSlider(b); 2106 2107 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2108 res = Interval.add(a, b); 2109 } else if (Type.isArray(a) && Type.isArray(b)) { 2110 len = Math.min(a.length, b.length); 2111 res = []; 2112 2113 for (i = 0; i < len; i++) { 2114 res[i] = a[i] + b[i]; 2115 } 2116 } else if (Type.isNumber(a) && Type.isNumber(b)) { 2117 res = a + b; 2118 } else if (Type.isString(a) || Type.isString(b)) { 2119 res = a.toString() + b.toString(); 2120 } else { 2121 this._error('Operation + not defined on operands ' + typeof a + ' and ' + typeof b); 2122 } 2123 2124 return res; 2125 }, 2126 2127 /** 2128 * - operator implementation 2129 * @param {Number|Array|JXG.Point} a 2130 * @param {Number|Array|JXG.Point} b 2131 * @returns {Number|Array} 2132 */ 2133 sub: function (a, b) { 2134 var i, len, res; 2135 2136 a = Type.evalSlider(a); 2137 b = Type.evalSlider(b); 2138 2139 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2140 res = Interval.sub(a, b); 2141 } else if (Type.isArray(a) && Type.isArray(b)) { 2142 len = Math.min(a.length, b.length); 2143 res = []; 2144 2145 for (i = 0; i < len; i++) { 2146 res[i] = a[i] - b[i]; 2147 } 2148 } else if (Type.isNumber(a) && Type.isNumber(b)) { 2149 res = a - b; 2150 } else { 2151 this._error('Operation - not defined on operands ' + typeof a + ' and ' + typeof b); 2152 } 2153 2154 return res; 2155 }, 2156 2157 /** 2158 * unary - operator implementation 2159 * @param {Number|Array|JXG.Point} a 2160 * @returns {Number|Array} 2161 */ 2162 neg: function (a) { 2163 var i, len, res; 2164 2165 a = Type.evalSlider(a); 2166 2167 if (Interval.isInterval(a)) { 2168 res = Interval.negative(a); 2169 } else if (Type.isArray(a)) { 2170 len = a.length; 2171 res = []; 2172 2173 for (i = 0; i < len; i++) { 2174 res[i] = -a[i]; 2175 } 2176 } else if (Type.isNumber(a)) { 2177 res = -a; 2178 } else { 2179 this._error('Unary operation - not defined on operand ' + typeof a); 2180 } 2181 2182 return res; 2183 }, 2184 2185 /** 2186 * Multiplication of vectors and numbers 2187 * @param {Number|Array} a 2188 * @param {Number|Array} b 2189 * @returns {Number|Array} (Inner) product of the given input values. 2190 */ 2191 mul: function (a, b) { 2192 var i, len, res; 2193 2194 a = Type.evalSlider(a); 2195 b = Type.evalSlider(b); 2196 2197 if (Type.isArray(a) && Type.isNumber(b)) { 2198 // swap b and a 2199 i = a; 2200 a = b; 2201 b = a; 2202 } 2203 2204 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2205 res = Interval.mul(a, b); 2206 } else if (Type.isArray(a) && Type.isArray(b)) { 2207 len = Math.min(a.length, b.length); 2208 res = Mat.innerProduct(a, b, len); 2209 } else if (Type.isNumber(a) && Type.isArray(b)) { 2210 len = b.length; 2211 res = []; 2212 2213 for (i = 0; i < len; i++) { 2214 res[i] = a * b[i]; 2215 } 2216 } else if (Type.isNumber(a) && Type.isNumber(b)) { 2217 res = a * b; 2218 } else { 2219 this._error('Operation * not defined on operands ' + typeof a + ' and ' + typeof b); 2220 } 2221 2222 return res; 2223 }, 2224 2225 /** 2226 * Implementation of the / operator. 2227 * @param {Number|Array} a 2228 * @param {Number} b 2229 * @returns {Number|Array} 2230 */ 2231 div: function (a, b) { 2232 var i, len, res; 2233 2234 a = Type.evalSlider(a); 2235 b = Type.evalSlider(b); 2236 2237 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2238 res = Interval.div(a, b); 2239 } else if (Type.isArray(a) && Type.isNumber(b)) { 2240 len = a.length; 2241 res = []; 2242 2243 for (i = 0; i < len; i++) { 2244 res[i] = a[i] / b; 2245 } 2246 } else if (Type.isNumber(a) && Type.isNumber(b)) { 2247 res = a / b; 2248 } else { 2249 this._error('Operation * not defined on operands ' + typeof a + ' and ' + typeof b); 2250 } 2251 2252 return res; 2253 }, 2254 2255 /** 2256 * Implementation of the % operator. 2257 * @param {Number|Array} a 2258 * @param {Number} b 2259 * @returns {Number|Array} 2260 */ 2261 mod: function (a, b) { 2262 var i, len, res; 2263 2264 a = Type.evalSlider(a); 2265 b = Type.evalSlider(b); 2266 2267 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2268 return Interval.fmod(a, b); 2269 } else if (Type.isArray(a) && Type.isNumber(b)) { 2270 len = a.length; 2271 res = []; 2272 2273 for (i = 0; i < len; i++) { 2274 res[i] = Mat.mod(a[i], b, true); 2275 } 2276 } else if (Type.isNumber(a) && Type.isNumber(b)) { 2277 res = Mat.mod(a, b, true); 2278 } else { 2279 this._error('Operation * not defined on operands ' + typeof a + ' and ' + typeof b); 2280 } 2281 2282 return res; 2283 }, 2284 2285 /** 2286 * Pow function wrapper to allow direct usage of sliders. 2287 * @param {Number|Slider} a 2288 * @param {Number|Slider} b 2289 * @returns {Number} 2290 */ 2291 pow: function (a, b) { 2292 a = Type.evalSlider(a); 2293 b = Type.evalSlider(b); 2294 2295 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2296 return Interval.pow(a, b); 2297 } 2298 return Mat.pow(a, b); 2299 }, 2300 2301 lt: function (a, b) { 2302 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2303 return Interval.lt(a, b); 2304 } 2305 return a < b; 2306 }, 2307 leq: function (a, b) { 2308 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2309 return Interval.leq(a, b); 2310 } 2311 return a <= b; 2312 }, 2313 gt: function (a, b) { 2314 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2315 return Interval.gt(a, b); 2316 } 2317 return a > b; 2318 }, 2319 geq: function (a, b) { 2320 if (Interval.isInterval(a) || Interval.isInterval(b)) { 2321 return Interval.geq(a, b); 2322 } 2323 return a >= b; 2324 }, 2325 2326 randint: function (min, max, step) { 2327 if (!Type.exists(step)) { 2328 step = 1; 2329 } 2330 return Math.round(Math.random() * (max - min) / step) * step + min; 2331 }, 2332 2333 DDD: function (f) { 2334 console.log('Dummy derivative function. This should never appear!'); 2335 }, 2336 2337 /** 2338 * Implementation of the ?: operator 2339 * @param {Boolean} cond Condition 2340 * @param {*} v1 2341 * @param {*} v2 2342 * @returns {*} Either v1 or v2. 2343 */ 2344 ifthen: function (cond, v1, v2) { 2345 if (cond) { 2346 return v1; 2347 } 2348 2349 return v2; 2350 }, 2351 2352 /** 2353 * Implementation of the delete() builtin function 2354 * @param {JXG.GeometryElement} element 2355 */ 2356 del: function (element) { 2357 if (typeof element === 'object' && JXG.exists(element.type) && JXG.exists(element.elementClass)) { 2358 this.board.removeObject(element); 2359 } 2360 }, 2361 2362 /** 2363 * Implementation of the eval() builtin function. Calls JXG.evaluate(). 2364 * @param {String|Number|Function} v 2365 */ 2366 eval: function (v) { 2367 return JXG.evaluate(v); 2368 }, 2369 2370 /** 2371 * Implementation of the use() builtin function 2372 * @param {String} board 2373 */ 2374 use: function (board) { 2375 var b, ref, 2376 found = false; 2377 2378 if (typeof board === 'string') { 2379 // search all the boards for the one with the appropriate container div 2380 for (b in JXG.boards) { 2381 if (JXG.boards.hasOwnProperty(b) && JXG.boards[b].container === board) { 2382 ref = JXG.boards[b]; 2383 found = true; 2384 break; 2385 } 2386 } 2387 } else { 2388 ref = board; 2389 found = true; 2390 } 2391 2392 if (found) { 2393 this.board = ref; 2394 this.builtIn.$board = ref; 2395 this.builtIn.$board.src = '$jc$.board'; 2396 } else { 2397 this._error('Board \'' + board + '\' not found!'); 2398 } 2399 }, 2400 2401 /** 2402 * Find the first symbol to the given value from the given scope upwards. 2403 * @param v Value 2404 * @param {Number} [scope=-1] The scope, default is to start with current scope (-1). 2405 * @returns {Array} An array containing the symbol and the scope if a symbol could be found, 2406 * an empty array otherwise; 2407 */ 2408 findSymbol: function (v, scope) { 2409 var i, s; 2410 2411 scope = Type.def(scope, -1); 2412 2413 if (scope === -1) { 2414 s = this.scope; 2415 } else { 2416 s = this.scopes[scope]; 2417 } 2418 2419 while (s !== null) { 2420 for (i in s.locals) { 2421 if (s.locals.hasOwnProperty(i) && s.locals[i] === v) { 2422 return [i, s]; 2423 } 2424 } 2425 2426 s = s.previous; 2427 } 2428 2429 return []; 2430 }, 2431 2432 /** 2433 * Import modules into a JessieCode script. 2434 * @param {String} module 2435 */ 2436 importModule: function (module) { 2437 return priv.modules[module.toLowerCase()]; 2438 }, 2439 2440 /** 2441 * Defines built in methods and constants. 2442 * @returns {Object} BuiltIn control object 2443 */ 2444 defineBuiltIn: function () { 2445 var that = this, 2446 builtIn = { 2447 PI: Math.PI, 2448 EULER: Math.E, 2449 D: that.DDD, 2450 X: that.X, 2451 Y: that.Y, 2452 V: that.V, 2453 Value: that.V, 2454 L: that.L, 2455 Length: that.L, 2456 2457 acosh: Mat.acosh, 2458 acot: Mat.acot, 2459 asinh: Mat.asinh, 2460 binomial: Mat.binomial, 2461 cbrt: Mat.cbrt, 2462 cosh: Mat.cosh, 2463 cot: Mat.cot, 2464 deg: Geometry.trueAngle, 2465 A: that.area, 2466 area: that.area, 2467 Area: that.area, 2468 perimeter: that.perimeter, 2469 Perimeter: that.perimeter, 2470 dist: that.dist, 2471 Dist: that.dist, 2472 R: that.radius, 2473 radius: that.radius, 2474 Radius: that.radius, 2475 erf: Mat.erf, 2476 erfc: Mat.erfc, 2477 erfi: Mat.erfi, 2478 factorial: Mat.factorial, 2479 gcd: Mat.gcd, 2480 lb: Mat.log2, 2481 lcm: Mat.lcm, 2482 ld: Mat.log2, 2483 lg: Mat.log10, 2484 ln: Math.log, 2485 log: Mat.log, 2486 log10: Mat.log10, 2487 log2: Mat.log2, 2488 ndtr: Mat.ndtr, 2489 ndtri: Mat.ndtri, 2490 nthroot: Mat.nthroot, 2491 pow: Mat.pow, 2492 rad: Geometry.rad, 2493 ratpow: Mat.ratpow, 2494 trunc: Type.trunc, 2495 sinh: Mat.sinh, 2496 slope: that.slope, 2497 Slope: that.slope, 2498 2499 randint: that.randint, 2500 2501 IfThen: that.ifthen, 2502 'import': that.importModule, 2503 'eval': that.eval, 2504 'use': that.use, 2505 'remove': that.del, 2506 '$': that.getElementById, 2507 '$value': function(e) {return that.getElementById(e).Value(); }, 2508 getName: that.getName, 2509 name: that.getName, 2510 '$board': that.board, 2511 '$log': that.log 2512 }; 2513 2514 // special scopes for factorial, deg, and rad 2515 builtIn.rad.sc = Geometry; 2516 builtIn.deg.sc = Geometry; 2517 builtIn.factorial.sc = Mat; 2518 2519 // set the javascript equivalent for the builtIns 2520 // some of the anonymous functions should be replaced by global methods later on 2521 // EULER and PI don't get a source attribute - they will be lost anyways and apparently 2522 // some browser will throw an exception when a property is assigned to a primitive value. 2523 builtIn.X.src = '$jc$.X'; 2524 builtIn.Y.src = '$jc$.Y'; 2525 builtIn.V.src = '$jc$.V'; 2526 builtIn.Value.src = '$jc$.V'; 2527 builtIn.L.src = '$jc$.L'; 2528 builtIn.Length.src = '$jc$.L'; 2529 2530 builtIn.acosh.src = 'JXG.Math.acosh'; 2531 builtIn.acot.src = 'JXG.Math.acot'; 2532 builtIn.asinh.src = 'JXG.Math.asinh'; 2533 builtIn.binomial.src = 'JXG.Math.binomial'; 2534 builtIn.cbrt.src = 'JXG.Math.cbrt'; 2535 builtIn.cot.src = 'JXG.Math.cot'; 2536 builtIn.cosh.src = 'JXG.Math.cosh'; 2537 builtIn.deg.src = 'JXG.Math.Geometry.trueAngle'; 2538 builtIn.erf.src = 'JXG.Math.erf'; 2539 builtIn.erfc.src = 'JXG.Math.erfc'; 2540 builtIn.erfi.src = 'JXG.Math.erfi'; 2541 builtIn.A.src = '$jc$.area'; 2542 builtIn.area.src = '$jc$.area'; 2543 builtIn.Area.src = '$jc$.area'; 2544 builtIn.perimeter.src = '$jc$.perimeter'; 2545 builtIn.Perimeter.src = '$jc$.perimeter'; 2546 builtIn.dist.src = '$jc$.dist'; 2547 builtIn.Dist.src = '$jc$.dist'; 2548 builtIn.R.src = '$jc$.radius'; 2549 builtIn.radius.src = '$jc$.radius'; 2550 builtIn.Radius.src = '$jc$.radius'; 2551 builtIn.factorial.src = 'JXG.Math.factorial'; 2552 builtIn.gcd.src = 'JXG.Math.gcd'; 2553 builtIn.lb.src = 'JXG.Math.log2'; 2554 builtIn.lcm.src = 'JXG.Math.lcm'; 2555 builtIn.ld.src = 'JXG.Math.log2'; 2556 builtIn.lg.src = 'JXG.Math.log10'; 2557 builtIn.ln.src = 'Math.log'; 2558 builtIn.log.src = 'JXG.Math.log'; 2559 builtIn.log10.src = 'JXG.Math.log10'; 2560 builtIn.log2.src = 'JXG.Math.log2'; 2561 builtIn.ndtr.src = 'JXG.Math.ndtr'; 2562 builtIn.ndtri.src = 'JXG.Math.ndtri'; 2563 builtIn.nthroot.src = 'JXG.Math.nthroot'; 2564 builtIn.pow.src = 'JXG.Math.pow'; 2565 builtIn.rad.src = 'JXG.Math.Geometry.rad'; 2566 builtIn.ratpow.src = 'JXG.Math.ratpow'; 2567 builtIn.trunc.src = 'JXG.trunc'; 2568 builtIn.sinh.src = 'JXG.Math.sinh'; 2569 builtIn.slope.src = '$jc$.slope'; 2570 builtIn.Slope.src = '$jc$.slope'; 2571 2572 builtIn.randint.src = '$jc$.randint'; 2573 2574 builtIn['import'].src = '$jc$.importModule'; 2575 builtIn.eval.src = '$jc$.eval'; 2576 builtIn.use.src = '$jc$.use'; 2577 builtIn.remove.src = '$jc$.del'; 2578 builtIn.IfThen.src = '$jc$.ifthen'; 2579 // usually unused, see node_op > op_execfun 2580 builtIn.$.src = '(function (n) { return $jc$.board.select(n); })'; 2581 builtIn.$value.src = '(function (n) { return $jc$.board.select(n).Value(); })'; 2582 builtIn.getName.src = '$jc$.getName'; 2583 builtIn.name.src = '$jc$.getName'; 2584 if (builtIn.$board) { 2585 builtIn.$board.src = '$jc$.board'; 2586 } 2587 builtIn.$log.src = '$jc$.log'; 2588 2589 builtIn = JXG.merge(builtIn, that._addedBuiltIn); 2590 2591 return builtIn; 2592 }, 2593 2594 _addedBuiltIn: {}, 2595 2596 addBuiltIn: function (name, func) { 2597 if (Type.exists(this.builtIn)) { 2598 if (Type.exists(this.builtIn[name])) { 2599 return; 2600 } 2601 this.builtIn[name] = func; 2602 this.builtIn[name].src = '$jc$.' + name; 2603 } 2604 2605 if (Type.exists(this._addedBuiltIn[name])) { 2606 return; 2607 } 2608 this._addedBuiltIn[name] = func; 2609 this._addedBuiltIn[name].src = '$jc$.' + name; 2610 2611 JXG.JessieCode.prototype[name] = func; 2612 }, 2613 2614 /** 2615 * Returns information about the possible functions and constants. 2616 * @returns {Object} 2617 */ 2618 getPossibleOperands: function () { 2619 var FORBIDDEN = ['E'], 2620 jessiecode = this.builtIn || this.defineBuiltIn(), 2621 math = Math, 2622 jc, ma, merge, 2623 i, j, p, len, e, 2624 funcs, funcsJC, consts, operands, 2625 sort, pack; 2626 2627 sort = function (a, b) { 2628 return a.toLowerCase().localeCompare(b.toLowerCase()); 2629 }; 2630 2631 pack = function (name, origin) { 2632 var that = null; 2633 2634 if (origin === 'jc') that = jessiecode[name]; 2635 else if (origin === 'Math') that = math[name]; 2636 else return; 2637 2638 if (FORBIDDEN.indexOf(name) >= 0) { 2639 return; 2640 } else if (JXG.isFunction(that)) { 2641 return { 2642 name: name, 2643 type: 'function', 2644 numParams: that.length, 2645 origin: origin, 2646 }; 2647 } else if (JXG.isNumber(that)) { 2648 return { 2649 name: name, 2650 type: 'constant', 2651 value: that, 2652 origin: origin, 2653 }; 2654 } else if (name.startsWith('$')) { 2655 // do nothing 2656 } else if (that !== undefined) { 2657 console.error('undefined type', that); 2658 } 2659 }; 2660 2661 jc = Object.getOwnPropertyNames(jessiecode).sort(sort); 2662 ma = Object.getOwnPropertyNames(math).sort(sort); 2663 merge = []; 2664 i = 0; 2665 j = 0; 2666 2667 while (i < jc.length || j < ma.length) { 2668 if (jc[i] === ma[j]) { 2669 p = pack(ma[j], 'Math'); 2670 if (JXG.exists(p)) merge.push(p); 2671 i++; 2672 j++; 2673 } else if (!JXG.exists(ma[j]) || jc[i].toLowerCase().localeCompare(ma[j].toLowerCase()) < 0) { 2674 p = pack(jc[i], 'jc'); 2675 if (JXG.exists(p)) merge.push(p); 2676 i++; 2677 } else { 2678 p = pack(ma[j], 'Math'); 2679 if (JXG.exists(p)) merge.push(p); 2680 j++; 2681 } 2682 } 2683 2684 funcs = []; 2685 funcsJC = []; 2686 consts = []; 2687 operands = {}; 2688 len = merge.length; 2689 for (i = 0; i < len; i++) { 2690 e = merge[i]; 2691 switch (e.type) { 2692 case 'function': 2693 funcs.push(e.name); 2694 if (e.origin === 'jc') 2695 funcsJC.push(e.name); 2696 break; 2697 case 'constant': 2698 consts.push(e.name); 2699 break; 2700 } 2701 operands[e.name] = e; 2702 } 2703 2704 return { 2705 all: operands, 2706 list: merge, 2707 functions: funcs, 2708 functions_jessiecode: funcsJC, 2709 constants: consts, 2710 }; 2711 }, 2712 2713 /** 2714 * Output a debugging message. Uses debug console, if available. Otherwise an HTML element with the 2715 * id "debug" and an innerHTML property is used. 2716 * @param {String} log 2717 * @private 2718 */ 2719 _debug: function (log) { 2720 if (typeof console === 'object') { 2721 console.log(log); 2722 } else if (Env.isBrowser && document && document.getElementById('debug') !== null) { 2723 document.getElementById('debug').innerHTML += log + '<br />'; 2724 } 2725 }, 2726 2727 /** 2728 * Throws an exception with the given error message. 2729 * @param {String} msg Error message 2730 */ 2731 _error: function (msg) { 2732 var e = new Error('Error(' + this.line + '): ' + msg); 2733 e.line = this.line; 2734 throw e; 2735 }, 2736 2737 /** 2738 * Output a warning message using {@link JXG#debug} and precedes the message with "Warning: ". 2739 * @param {String} msg 2740 */ 2741 _warn: function (msg) { 2742 if (typeof console === 'object') { 2743 console.log('Warning(' + this.line + '): ' + msg); 2744 } else if (Env.isBrowser && document && document.getElementById(this.warnLog) !== null) { 2745 document.getElementById(this.warnLog).innerHTML += 'Warning(' + this.line + '): ' + msg + '<br />'; 2746 } 2747 }, 2748 2749 _log: function (msg) { 2750 if (typeof window !== 'object' && typeof self === 'object' && self.postMessage) { 2751 self.postMessage({ type: 'log', msg: 'Log: ' + msg.toString() }); 2752 } else { 2753 console.log('Log: ', arguments); 2754 } 2755 } 2756 2757 }); 2758 2759 /* parser generated by jison 0.4.18 */ 2760 /* 2761 Returns a Parser object of the following structure: 2762 2763 Parser: { 2764 yy: {} 2765 } 2766 2767 Parser.prototype: { 2768 yy: {}, 2769 trace: function(), 2770 symbols_: {associative list: name ==> number}, 2771 terminals_: {associative list: number ==> name}, 2772 productions_: [...], 2773 performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate, $$, _$), 2774 table: [...], 2775 defaultActions: {...}, 2776 parseError: function(str, hash), 2777 parse: function(input), 2778 2779 lexer: { 2780 EOF: 1, 2781 parseError: function(str, hash), 2782 setInput: function(input), 2783 input: function(), 2784 unput: function(str), 2785 more: function(), 2786 less: function(n), 2787 pastInput: function(), 2788 upcomingInput: function(), 2789 showPosition: function(), 2790 test_match: function(regex_match_array, rule_index), 2791 next: function(), 2792 lex: function(), 2793 begin: function(condition), 2794 popState: function(), 2795 _currentRules: function(), 2796 topState: function(), 2797 pushState: function(condition), 2798 2799 options: { 2800 ranges: boolean (optional: true ==> token location info will include a .range[] member) 2801 flex: boolean (optional: true ==> flex-like lexing behaviour where the rules are tested exhaustively to find the longest match) 2802 backtrack_lexer: boolean (optional: true ==> lexer regexes are tested in order and for each matching regex the action code is invoked; the lexer terminates the scan when a token is returned by the action code) 2803 }, 2804 2805 performAction: function(yy, yy_, $avoiding_name_collisions, YY_START), 2806 rules: [...], 2807 conditions: {associative list: name ==> set}, 2808 } 2809 } 2810 2811 2812 token location info (@$, _$, etc.): { 2813 first_line: n, 2814 last_line: n, 2815 first_column: n, 2816 last_column: n, 2817 range: [start_number, end_number] (where the numbers are indexes into the input string, regular zero-based) 2818 } 2819 2820 2821 the parseError function receives a 'hash' object with these members for lexer and parser errors: { 2822 text: (matched text) 2823 token: (the produced terminal token, if any) 2824 line: (yylineno) 2825 } 2826 while parser (grammar) errors will also provide these members, i.e. parser errors deliver a superset of attributes: { 2827 loc: (yylloc) 2828 expected: (string describing the set of expected tokens) 2829 recoverable: (boolean: TRUE when the parser has a error recovery rule available for this particular error) 2830 } 2831 */ 2832 /** 2833 * @class 2834 * @ignore 2835 */ 2836 var parser = (function(){ 2837 var o=function(k,v,o,l){for(o=o||{},l=k.length;l--;o[k[l]]=v);return o},$V0=[2,14],$V1=[1,13],$V2=[1,37],$V3=[1,14],$V4=[1,15],$V5=[1,21],$V6=[1,16],$V7=[1,17],$V8=[1,33],$V9=[1,18],$Va=[1,19],$Vb=[1,12],$Vc=[1,59],$Vd=[1,60],$Ve=[1,58],$Vf=[1,46],$Vg=[1,48],$Vh=[1,49],$Vi=[1,50],$Vj=[1,51],$Vk=[1,52],$Vl=[1,53],$Vm=[1,54],$Vn=[1,45],$Vo=[1,38],$Vp=[1,39],$Vq=[5,7,8,14,15,16,17,19,20,21,23,26,27,50,51,58,65,74,75,76,77,78,79,80,82,91,93],$Vr=[5,7,8,12,14,15,16,17,19,20,21,23,26,27,50,51,58,65,74,75,76,77,78,79,80,82,91,93],$Vs=[8,10,16,32,34,35,37,39,41,42,43,45,46,47,48,50,51,53,54,55,57,64,65,66,83,86],$Vt=[2,48],$Vu=[1,72],$Vv=[10,16,32,34,35,37,39,41,42,43,45,46,47,48,50,51,53,54,55,57,66,83,86],$Vw=[1,78],$Vx=[8,10,16,32,34,35,37,41,42,43,45,46,47,48,50,51,53,54,55,57,64,65,66,83,86],$Vy=[1,82],$Vz=[8,10,16,32,34,35,37,39,45,46,47,48,50,51,53,54,55,57,64,65,66,83,86],$VA=[1,83],$VB=[1,84],$VC=[1,85],$VD=[8,10,16,32,34,35,37,39,41,42,43,50,51,53,54,55,57,64,65,66,83,86],$VE=[1,89],$VF=[1,90],$VG=[1,91],$VH=[1,92],$VI=[1,97],$VJ=[8,10,16,32,34,35,37,39,41,42,43,45,46,47,48,53,54,55,57,64,65,66,83,86],$VK=[1,103],$VL=[1,104],$VM=[8,10,16,32,34,35,37,39,41,42,43,45,46,47,48,50,51,57,64,65,66,83,86],$VN=[1,105],$VO=[1,106],$VP=[1,107],$VQ=[1,126],$VR=[1,139],$VS=[83,86],$VT=[1,150],$VU=[10,66,86],$VV=[8,10,16,20,32,34,35,37,39,41,42,43,45,46,47,48,50,51,53,54,55,57,64,65,66,82,83,86],$VW=[1,167],$VX=[10,86]; 2838 /** 2839 * @class 2840 * @ignore 2841 */ 2842 var parser = {trace: function trace () { }, 2843 yy: {}, 2844 symbols_: {"error":2,"Program":3,"StatementList":4,"EOF":5,"IfStatement":6,"IF":7,"(":8,"Expression":9,")":10,"Statement":11,"ELSE":12,"LoopStatement":13,"WHILE":14,"FOR":15,";":16,"DO":17,"UnaryStatement":18,"USE":19,"IDENTIFIER":20,"DELETE":21,"ReturnStatement":22,"RETURN":23,"EmptyStatement":24,"StatementBlock":25,"{":26,"}":27,"ExpressionStatement":28,"AssignmentExpression":29,"ConditionalExpression":30,"LeftHandSideExpression":31,"=":32,"LogicalORExpression":33,"?":34,":":35,"LogicalANDExpression":36,"||":37,"EqualityExpression":38,"&&":39,"RelationalExpression":40,"==":41,"!=":42,"~=":43,"AdditiveExpression":44,"<":45,">":46,"<=":47,">=":48,"MultiplicativeExpression":49,"+":50,"-":51,"UnaryExpression":52,"*":53,"/":54,"%":55,"ExponentExpression":56,"^":57,"!":58,"MemberExpression":59,"CallExpression":60,"PrimaryExpression":61,"FunctionExpression":62,"MapExpression":63,".":64,"[":65,"]":66,"BasicLiteral":67,"ObjectLiteral":68,"ArrayLiteral":69,"NullLiteral":70,"BooleanLiteral":71,"StringLiteral":72,"NumberLiteral":73,"NULL":74,"TRUE":75,"FALSE":76,"STRING":77,"NUMBER":78,"NAN":79,"INFINITY":80,"ElementList":81,"<<":82,">>":83,"PropertyList":84,"Property":85,",":86,"PropertyName":87,"Arguments":88,"AttributeList":89,"Attribute":90,"FUNCTION":91,"ParameterDefinitionList":92,"MAP":93,"->":94,"$accept":0,"$end":1}, 2845 terminals_: {2:"error",5:"EOF",7:"IF",8:"(",10:")",12:"ELSE",14:"WHILE",15:"FOR",16:";",17:"DO",19:"USE",20:"IDENTIFIER",21:"DELETE",23:"RETURN",26:"{",27:"}",32:"=",34:"?",35:":",37:"||",39:"&&",41:"==",42:"!=",43:"~=",45:"<",46:">",47:"<=",48:">=",50:"+",51:"-",53:"*",54:"/",55:"%",57:"^",58:"!",64:".",65:"[",66:"]",74:"NULL",75:"TRUE",76:"FALSE",77:"STRING",78:"NUMBER",79:"NAN",80:"INFINITY",82:"<<",83:">>",86:",",91:"FUNCTION",93:"MAP",94:"->"}, 2846 productions_: [0,[3,2],[6,5],[6,7],[13,5],[13,9],[13,7],[18,2],[18,2],[22,2],[22,3],[24,1],[25,3],[4,2],[4,0],[11,1],[11,1],[11,1],[11,1],[11,1],[11,1],[11,1],[28,2],[9,1],[29,1],[29,3],[30,1],[30,5],[33,1],[33,3],[36,1],[36,3],[38,1],[38,3],[38,3],[38,3],[40,1],[40,3],[40,3],[40,3],[40,3],[44,1],[44,3],[44,3],[49,1],[49,3],[49,3],[49,3],[56,1],[56,3],[52,1],[52,2],[52,2],[52,2],[31,1],[31,1],[59,1],[59,1],[59,1],[59,3],[59,4],[61,1],[61,1],[61,1],[61,1],[61,3],[67,1],[67,1],[67,1],[67,1],[70,1],[71,1],[71,1],[72,1],[73,1],[73,1],[73,1],[69,2],[69,3],[68,2],[68,3],[84,1],[84,3],[85,3],[87,1],[87,1],[87,1],[60,2],[60,3],[60,2],[60,4],[60,3],[88,2],[88,3],[89,1],[89,3],[90,1],[90,1],[81,1],[81,3],[62,4],[62,5],[63,5],[63,6],[92,1],[92,3]], 2847 /** 2848 * @class 2849 * @ignore 2850 */ 2851 performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate /* action[1] */, $$ /* vstack */, _$ /* lstack */) { 2852 /* this == yyval */ 2853 2854 var $0 = $$.length - 1; 2855 switch (yystate) { 2856 case 1: 2857 return $$[$0-1]; 2858 break; 2859 case 2: 2860 this.$ = AST.createNode(lc(_$[$0-4]), 'node_op', 'op_if', $$[$0-2], $$[$0]); 2861 break; 2862 case 3: 2863 this.$ = AST.createNode(lc(_$[$0-6]), 'node_op', 'op_if_else', $$[$0-4], $$[$0-2], $$[$0]); 2864 break; 2865 case 4: 2866 this.$ = AST.createNode(lc(_$[$0-4]), 'node_op', 'op_while', $$[$0-2], $$[$0]); 2867 break; 2868 case 5: 2869 this.$ = AST.createNode(lc(_$[$0-8]), 'node_op', 'op_for', $$[$0-6], $$[$0-4], $$[$0-2], $$[$0]); 2870 break; 2871 case 6: 2872 this.$ = AST.createNode(lc(_$[$0-6]), 'node_op', 'op_do', $$[$0-5], $$[$0-2]); 2873 break; 2874 case 7: 2875 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_use', $$[$0]); 2876 break; 2877 case 8: 2878 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_delete', $$[$0]); 2879 break; 2880 case 9: 2881 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_return', undefined); 2882 break; 2883 case 10: 2884 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_return', $$[$0-1]); 2885 break; 2886 case 11: case 14: 2887 this.$ = AST.createNode(lc(_$[$0]), 'node_op', 'op_none'); 2888 break; 2889 case 12: 2890 this.$ = $$[$0-1]; this.$.needsBrackets = true; 2891 break; 2892 case 13: 2893 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_none', $$[$0-1], $$[$0]); 2894 break; 2895 case 15: case 16: case 17: case 18: case 19: case 20: case 21: case 23: case 24: case 26: case 28: case 30: case 32: case 36: case 41: case 44: case 48: case 50: case 52: case 54: case 55: case 56: case 58: case 62: case 81: case 84: case 85: case 86: 2896 this.$ = $$[$0]; 2897 break; 2898 case 22: case 65: case 93: 2899 this.$ = $$[$0-1]; 2900 break; 2901 case 25: 2902 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_assign', $$[$0-2], $$[$0]); this.$.isMath = false; 2903 break; 2904 case 27: 2905 this.$ = AST.createNode(lc(_$[$0-4]), 'node_op', 'op_conditional', $$[$0-4], $$[$0-2], $$[$0]); this.$.isMath = false; 2906 break; 2907 case 29: 2908 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_or', $$[$0-2], $$[$0]); this.$.isMath = false; 2909 break; 2910 case 31: 2911 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_and', $$[$0-2], $$[$0]); this.$.isMath = false; 2912 break; 2913 case 33: 2914 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_eq', $$[$0-2], $$[$0]); this.$.isMath = false; 2915 break; 2916 case 34: 2917 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_neq', $$[$0-2], $$[$0]); this.$.isMath = false; 2918 break; 2919 case 35: 2920 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_approx', $$[$0-2], $$[$0]); this.$.isMath = false; 2921 break; 2922 case 37: 2923 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_lt', $$[$0-2], $$[$0]); this.$.isMath = false; 2924 break; 2925 case 38: 2926 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_gt', $$[$0-2], $$[$0]); this.$.isMath = false; 2927 break; 2928 case 39: 2929 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_leq', $$[$0-2], $$[$0]); this.$.isMath = false; 2930 break; 2931 case 40: 2932 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_geq', $$[$0-2], $$[$0]); this.$.isMath = false; 2933 break; 2934 case 42: 2935 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_add', $$[$0-2], $$[$0]); this.$.isMath = true; 2936 break; 2937 case 43: 2938 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_sub', $$[$0-2], $$[$0]); this.$.isMath = true; 2939 break; 2940 case 45: 2941 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_mul', $$[$0-2], $$[$0]); this.$.isMath = true; 2942 break; 2943 case 46: 2944 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_div', $$[$0-2], $$[$0]); this.$.isMath = true; 2945 break; 2946 case 47: 2947 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_mod', $$[$0-2], $$[$0]); this.$.isMath = true; 2948 break; 2949 case 49: 2950 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_exp', $$[$0-2], $$[$0]); this.$.isMath = true; 2951 break; 2952 case 51: 2953 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_not', $$[$0]); this.$.isMath = false; 2954 break; 2955 case 53: 2956 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_neg', $$[$0]); this.$.isMath = true; 2957 break; 2958 case 57: case 63: case 64: case 66: case 67: case 68: case 97: 2959 this.$ = $$[$0]; this.$.isMath = false; 2960 break; 2961 case 59: case 91: 2962 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_property', $$[$0-2], $$[$0]); this.$.isMath = true; 2963 break; 2964 case 60: case 90: 2965 this.$ = AST.createNode(lc(_$[$0-3]), 'node_op', 'op_extvalue', $$[$0-3], $$[$0-1]); this.$.isMath = true; 2966 break; 2967 case 61: 2968 this.$ = AST.createNode(lc(_$[$0]), 'node_var', $$[$0]); 2969 break; 2970 case 69: 2971 this.$ = $$[$0]; this.$.isMath = true; 2972 break; 2973 case 70: 2974 this.$ = AST.createNode(lc(_$[$0]), 'node_const', null); 2975 break; 2976 case 71: 2977 this.$ = AST.createNode(lc(_$[$0]), 'node_const_bool', true); 2978 break; 2979 case 72: 2980 this.$ = AST.createNode(lc(_$[$0]), 'node_const_bool', false); 2981 break; 2982 case 73: 2983 this.$ = AST.createNode(lc(_$[$0]), 'node_str', $$[$0].substring(1, $$[$0].length - 1)); 2984 break; 2985 case 74: 2986 this.$ = AST.createNode(lc(_$[$0]), 'node_const', parseFloat($$[$0])); 2987 break; 2988 case 75: 2989 this.$ = AST.createNode(lc(_$[$0]), 'node_const', NaN); 2990 break; 2991 case 76: 2992 this.$ = AST.createNode(lc(_$[$0]), 'node_const', Infinity); 2993 break; 2994 case 77: 2995 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_array', []); 2996 break; 2997 case 78: 2998 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_array', $$[$0-1]); 2999 break; 3000 case 79: 3001 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_emptyobject', {}); this.$.needsAngleBrackets = true; 3002 break; 3003 case 80: 3004 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_proplst_val', $$[$0-1]); this.$.needsAngleBrackets = true; 3005 break; 3006 case 82: 3007 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_proplst', $$[$0-2], $$[$0]); 3008 break; 3009 case 83: 3010 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_prop', $$[$0-2], $$[$0]); 3011 break; 3012 case 87: case 89: 3013 this.$ = AST.createNode(lc(_$[$0-1]), 'node_op', 'op_execfun', $$[$0-1], $$[$0]); this.$.isMath = true; 3014 break; 3015 case 88: 3016 this.$ = AST.createNode(lc(_$[$0-2]), 'node_op', 'op_execfun', $$[$0-2], $$[$0-1], $$[$0], true); this.$.isMath = false; 3017 break; 3018 case 92: 3019 this.$ = []; 3020 break; 3021 case 94: case 98: case 104: 3022 this.$ = [$$[$0]]; 3023 break; 3024 case 95: case 99: case 105: 3025 this.$ = $$[$0-2].concat($$[$0]); 3026 break; 3027 case 96: 3028 this.$ = AST.createNode(lc(_$[$0]), 'node_var', $$[$0]); this.$.isMath = true; 3029 break; 3030 case 100: 3031 this.$ = AST.createNode(lc(_$[$0-3]), 'node_op', 'op_function', [], $$[$0]); this.$.isMath = false; 3032 break; 3033 case 101: 3034 this.$ = AST.createNode(lc(_$[$0-4]), 'node_op', 'op_function', $$[$0-2], $$[$0]); this.$.isMath = false; 3035 break; 3036 case 102: 3037 this.$ = AST.createNode(lc(_$[$0-4]), 'node_op', 'op_map', [], $$[$0]); 3038 break; 3039 case 103: 3040 this.$ = AST.createNode(lc(_$[$0-5]), 'node_op', 'op_map', $$[$0-3], $$[$0]); 3041 break; 3042 } 3043 }, 3044 table: 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3045 defaultActions: {3:[2,1],97:[2,84],98:[2,85],99:[2,86]}, 3046 parseError: function parseError (str, hash) { 3047 if (hash.recoverable) { 3048 this.trace(str); 3049 } else { 3050 var error = new Error(str); 3051 error.hash = hash; 3052 throw error; 3053 } 3054 }, 3055 /** 3056 * @class 3057 * @ignore 3058 */ 3059 parse: function parse(input) { 3060 var self = this, stack = [0], tstack = [], vstack = [null], lstack = [], table = this.table, yytext = '', yylineno = 0, yyleng = 0, recovering = 0, TERROR = 2, EOF = 1; 3061 var args = lstack.slice.call(arguments, 1); 3062 var lexer = Object.create(this.lexer); 3063 var sharedState = { yy: {} }; 3064 for (var k in this.yy) { 3065 if (Object.prototype.hasOwnProperty.call(this.yy, k)) { 3066 sharedState.yy[k] = this.yy[k]; 3067 } 3068 } 3069 lexer.setInput(input, sharedState.yy); 3070 sharedState.yy.lexer = lexer; 3071 sharedState.yy.parser = this; 3072 if (typeof lexer.yylloc == 'undefined') { 3073 lexer.yylloc = {}; 3074 } 3075 var yyloc = lexer.yylloc; 3076 lstack.push(yyloc); 3077 var ranges = lexer.options && lexer.options.ranges; 3078 if (typeof sharedState.yy.parseError === 'function') { 3079 this.parseError = sharedState.yy.parseError; 3080 } else { 3081 this.parseError = Object.getPrototypeOf(this).parseError; 3082 } 3083 function popStack(n) { 3084 stack.length = stack.length - 2 * n; 3085 vstack.length = vstack.length - n; 3086 lstack.length = lstack.length - n; 3087 } 3088 _token_stack: 3089 var lex = function () { 3090 var token; 3091 token = lexer.lex() || EOF; 3092 if (typeof token !== 'number') { 3093 token = self.symbols_[token] || token; 3094 } 3095 return token; 3096 }; 3097 var symbol, preErrorSymbol, state, action, a, r, yyval = {}, p, len, newState, expected; 3098 while (true) { 3099 state = stack[stack.length - 1]; 3100 if (this.defaultActions[state]) { 3101 action = this.defaultActions[state]; 3102 } else { 3103 if (symbol === null || typeof symbol == 'undefined') { 3104 symbol = lex(); 3105 } 3106 action = table[state] && table[state][symbol]; 3107 } 3108 if (typeof action === 'undefined' || !action.length || !action[0]) { 3109 var errStr = ''; 3110 expected = []; 3111 for (p in table[state]) { 3112 if (this.terminals_[p] && p > TERROR) { 3113 expected.push('\'' + this.terminals_[p] + '\''); 3114 } 3115 } 3116 if (lexer.showPosition) { 3117 errStr = 'Parse error on line ' + (yylineno + 1) + ':\n' + lexer.showPosition() + '\nExpecting ' + expected.join(', ') + ', got \'' + (this.terminals_[symbol] || symbol) + '\''; 3118 } else { 3119 errStr = 'Parse error on line ' + (yylineno + 1) + ': Unexpected ' + (symbol == EOF ? 'end of input' : '\'' + (this.terminals_[symbol] || symbol) + '\''); 3120 } 3121 this.parseError(errStr, { 3122 text: lexer.match, 3123 token: this.terminals_[symbol] || symbol, 3124 line: lexer.yylineno, 3125 loc: yyloc, 3126 expected: expected 3127 }); 3128 } 3129 if (action[0] instanceof Array && action.length > 1) { 3130 throw new Error('Parse Error: multiple actions possible at state: ' + state + ', token: ' + symbol); 3131 } 3132 switch (action[0]) { 3133 case 1: 3134 stack.push(symbol); 3135 vstack.push(lexer.yytext); 3136 lstack.push(lexer.yylloc); 3137 stack.push(action[1]); 3138 symbol = null; 3139 if (!preErrorSymbol) { 3140 yyleng = lexer.yyleng; 3141 yytext = lexer.yytext; 3142 yylineno = lexer.yylineno; 3143 yyloc = lexer.yylloc; 3144 if (recovering > 0) { 3145 recovering--; 3146 } 3147 } else { 3148 symbol = preErrorSymbol; 3149 preErrorSymbol = null; 3150 } 3151 break; 3152 case 2: 3153 len = this.productions_[action[1]][1]; 3154 yyval.$ = vstack[vstack.length - len]; 3155 yyval._$ = { 3156 first_line: lstack[lstack.length - (len || 1)].first_line, 3157 last_line: lstack[lstack.length - 1].last_line, 3158 first_column: lstack[lstack.length - (len || 1)].first_column, 3159 last_column: lstack[lstack.length - 1].last_column 3160 }; 3161 if (ranges) { 3162 yyval._$.range = [ 3163 lstack[lstack.length - (len || 1)].range[0], 3164 lstack[lstack.length - 1].range[1] 3165 ]; 3166 } 3167 r = this.performAction.apply(yyval, [ 3168 yytext, 3169 yyleng, 3170 yylineno, 3171 sharedState.yy, 3172 action[1], 3173 vstack, 3174 lstack 3175 ].concat(args)); 3176 if (typeof r !== 'undefined') { 3177 return r; 3178 } 3179 if (len) { 3180 stack = stack.slice(0, -1 * len * 2); 3181 vstack = vstack.slice(0, -1 * len); 3182 lstack = lstack.slice(0, -1 * len); 3183 } 3184 stack.push(this.productions_[action[1]][0]); 3185 vstack.push(yyval.$); 3186 lstack.push(yyval._$); 3187 newState = table[stack[stack.length - 2]][stack[stack.length - 1]]; 3188 stack.push(newState); 3189 break; 3190 case 3: 3191 return true; 3192 } 3193 } 3194 return true; 3195 }}; 3196 3197 3198 var AST = { 3199 node: function (type, value, children) { 3200 return { 3201 type: type, 3202 value: value, 3203 children: children 3204 }; 3205 }, 3206 3207 createNode: function (pos, type, value, children) { 3208 var i, 3209 n = this.node(type, value, []); 3210 3211 for (i = 3; i < arguments.length; i++) { 3212 n.children.push(arguments[i]); 3213 } 3214 3215 n.line = pos[0]; 3216 n.col = pos[1]; 3217 n.eline = pos[2]; 3218 n.ecol = pos[3]; 3219 3220 return n; 3221 } 3222 }; 3223 3224 var lc = function (lc1) { 3225 return [lc1.first_line, lc1.first_column, lc1.last_line, lc1.last_column]; 3226 }; 3227 3228 /* generated by jison-lex 0.3.4 */ 3229 var lexer = (function(){ 3230 var lexer = ({ 3231 3232 EOF:1, 3233 3234 parseError:function parseError(str, hash) { 3235 if (this.yy.parser) { 3236 this.yy.parser.parseError(str, hash); 3237 } else { 3238 throw new Error(str); 3239 } 3240 }, 3241 3242 // resets the lexer, sets new input 3243 setInput:function (input, yy) { 3244 this.yy = yy || this.yy || {}; 3245 this._input = input; 3246 this._more = this._backtrack = this.done = false; 3247 this.yylineno = this.yyleng = 0; 3248 this.yytext = this.matched = this.match = ''; 3249 this.conditionStack = ['INITIAL']; 3250 this.yylloc = { 3251 first_line: 1, 3252 first_column: 0, 3253 last_line: 1, 3254 last_column: 0 3255 }; 3256 if (this.options.ranges) { 3257 this.yylloc.range = [0,0]; 3258 } 3259 this.offset = 0; 3260 return this; 3261 }, 3262 3263 // consumes and returns one char from the input 3264 input:function () { 3265 var ch = this._input[0]; 3266 this.yytext += ch; 3267 this.yyleng++; 3268 this.offset++; 3269 this.match += ch; 3270 this.matched += ch; 3271 var lines = ch.match(/(?:\r\n?|\n).*/g); 3272 if (lines) { 3273 this.yylineno++; 3274 this.yylloc.last_line++; 3275 } else { 3276 this.yylloc.last_column++; 3277 } 3278 if (this.options.ranges) { 3279 this.yylloc.range[1]++; 3280 } 3281 3282 this._input = this._input.slice(1); 3283 return ch; 3284 }, 3285 3286 // unshifts one char (or a string) into the input 3287 unput:function (ch) { 3288 var len = ch.length; 3289 var lines = ch.split(/(?:\r\n?|\n)/g); 3290 3291 this._input = ch + this._input; 3292 this.yytext = this.yytext.substr(0, this.yytext.length - len); 3293 //this.yyleng -= len; 3294 this.offset -= len; 3295 var oldLines = this.match.split(/(?:\r\n?|\n)/g); 3296 this.match = this.match.substr(0, this.match.length - 1); 3297 this.matched = this.matched.substr(0, this.matched.length - 1); 3298 3299 if (lines.length - 1) { 3300 this.yylineno -= lines.length - 1; 3301 } 3302 var r = this.yylloc.range; 3303 3304 this.yylloc = { 3305 first_line: this.yylloc.first_line, 3306 last_line: this.yylineno + 1, 3307 first_column: this.yylloc.first_column, 3308 last_column: lines ? 3309 (lines.length === oldLines.length ? this.yylloc.first_column : 0) 3310 + oldLines[oldLines.length - lines.length].length - lines[0].length : 3311 this.yylloc.first_column - len 3312 }; 3313 3314 if (this.options.ranges) { 3315 this.yylloc.range = [r[0], r[0] + this.yyleng - len]; 3316 } 3317 this.yyleng = this.yytext.length; 3318 return this; 3319 }, 3320 3321 // When called from action, caches matched text and appends it on next action 3322 more:function () { 3323 this._more = true; 3324 return this; 3325 }, 3326 3327 // When called from action, signals the lexer that this rule fails to match the input, so the next matching rule (regex) should be tested instead. 3328 reject:function () { 3329 if (this.options.backtrack_lexer) { 3330 this._backtrack = true; 3331 } else { 3332 return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. You can only invoke reject() in the lexer when the lexer is of the backtracking persuasion (options.backtrack_lexer = true).\n' + this.showPosition(), { 3333 text: "", 3334 token: null, 3335 line: this.yylineno 3336 }); 3337 3338 } 3339 return this; 3340 }, 3341 3342 // retain first n characters of the match 3343 less:function (n) { 3344 this.unput(this.match.slice(n)); 3345 }, 3346 3347 // displays already matched input, i.e. for error messages 3348 pastInput:function () { 3349 var past = this.matched.substr(0, this.matched.length - this.match.length); 3350 return (past.length > 20 ? '...':'') + past.substr(-20).replace(/\n/g, ""); 3351 }, 3352 3353 // displays upcoming input, i.e. for error messages 3354 upcomingInput:function () { 3355 var next = this.match; 3356 if (next.length < 20) { 3357 next += this._input.substr(0, 20-next.length); 3358 } 3359 return (next.substr(0,20) + (next.length > 20 ? '...' : '')).replace(/\n/g, ""); 3360 }, 3361 3362 // displays the character position where the lexing error occurred, i.e. for error messages 3363 showPosition:function () { 3364 var pre = this.pastInput(); 3365 var c = new Array(pre.length + 1).join("-"); 3366 return pre + this.upcomingInput() + "\n" + c + "^"; 3367 }, 3368 3369 // test the lexed token: return FALSE when not a match, otherwise return token 3370 test_match:function(match, indexed_rule) { 3371 var token, 3372 lines, 3373 backup; 3374 3375 if (this.options.backtrack_lexer) { 3376 // save context 3377 backup = { 3378 yylineno: this.yylineno, 3379 yylloc: { 3380 first_line: this.yylloc.first_line, 3381 last_line: this.last_line, 3382 first_column: this.yylloc.first_column, 3383 last_column: this.yylloc.last_column 3384 }, 3385 yytext: this.yytext, 3386 match: this.match, 3387 matches: this.matches, 3388 matched: this.matched, 3389 yyleng: this.yyleng, 3390 offset: this.offset, 3391 _more: this._more, 3392 _input: this._input, 3393 yy: this.yy, 3394 conditionStack: this.conditionStack.slice(0), 3395 done: this.done 3396 }; 3397 if (this.options.ranges) { 3398 backup.yylloc.range = this.yylloc.range.slice(0); 3399 } 3400 } 3401 3402 lines = match[0].match(/(?:\r\n?|\n).*/g); 3403 if (lines) { 3404 this.yylineno += lines.length; 3405 } 3406 this.yylloc = { 3407 first_line: this.yylloc.last_line, 3408 last_line: this.yylineno + 1, 3409 first_column: this.yylloc.last_column, 3410 last_column: lines ? 3411 lines[lines.length - 1].length - lines[lines.length - 1].match(/\r?\n?/)[0].length : 3412 this.yylloc.last_column + match[0].length 3413 }; 3414 this.yytext += match[0]; 3415 this.match += match[0]; 3416 this.matches = match; 3417 this.yyleng = this.yytext.length; 3418 if (this.options.ranges) { 3419 this.yylloc.range = [this.offset, this.offset += this.yyleng]; 3420 } 3421 this._more = false; 3422 this._backtrack = false; 3423 this._input = this._input.slice(match[0].length); 3424 this.matched += match[0]; 3425 token = this.performAction.call(this, this.yy, this, indexed_rule, this.conditionStack[this.conditionStack.length - 1]); 3426 if (this.done && this._input) { 3427 this.done = false; 3428 } 3429 if (token) { 3430 return token; 3431 } else if (this._backtrack) { 3432 // recover context 3433 for (var k in backup) { 3434 this[k] = backup[k]; 3435 } 3436 return false; // rule action called reject() implying the next rule should be tested instead. 3437 } 3438 return false; 3439 }, 3440 3441 // return next match in input 3442 next:function () { 3443 if (this.done) { 3444 return this.EOF; 3445 } 3446 if (!this._input) { 3447 this.done = true; 3448 } 3449 3450 var token, 3451 match, 3452 tempMatch, 3453 index; 3454 if (!this._more) { 3455 this.yytext = ''; 3456 this.match = ''; 3457 } 3458 var rules = this._currentRules(); 3459 for (var i = 0; i < rules.length; i++) { 3460 tempMatch = this._input.match(this.rules[rules[i]]); 3461 if (tempMatch && (!match || tempMatch[0].length > match[0].length)) { 3462 match = tempMatch; 3463 index = i; 3464 if (this.options.backtrack_lexer) { 3465 token = this.test_match(tempMatch, rules[i]); 3466 if (token !== false) { 3467 return token; 3468 } else if (this._backtrack) { 3469 match = false; 3470 continue; // rule action called reject() implying a rule MISmatch. 3471 } else { 3472 // else: this is a lexer rule which consumes input without producing a token (e.g. whitespace) 3473 return false; 3474 } 3475 } else if (!this.options.flex) { 3476 break; 3477 } 3478 } 3479 } 3480 if (match) { 3481 token = this.test_match(match, rules[index]); 3482 if (token !== false) { 3483 return token; 3484 } 3485 // else: this is a lexer rule which consumes input without producing a token (e.g. whitespace) 3486 return false; 3487 } 3488 if (this._input === "") { 3489 return this.EOF; 3490 } else { 3491 return this.parseError('Lexical error on line ' + (this.yylineno + 1) + '. Unrecognized text.\n' + this.showPosition(), { 3492 text: "", 3493 token: null, 3494 line: this.yylineno 3495 }); 3496 } 3497 }, 3498 3499 // return next match that has a token 3500 lex:function lex () { 3501 var r = this.next(); 3502 if (r) { 3503 return r; 3504 } else { 3505 return this.lex(); 3506 } 3507 }, 3508 3509 // activates a new lexer condition state (pushes the new lexer condition state onto the condition stack) 3510 begin:function begin (condition) { 3511 this.conditionStack.push(condition); 3512 }, 3513 3514 // pop the previously active lexer condition state off the condition stack 3515 popState:function popState () { 3516 var n = this.conditionStack.length - 1; 3517 if (n > 0) { 3518 return this.conditionStack.pop(); 3519 } else { 3520 return this.conditionStack[0]; 3521 } 3522 }, 3523 3524 // produce the lexer rule set which is active for the currently active lexer condition state 3525 _currentRules:function _currentRules () { 3526 if (this.conditionStack.length && this.conditionStack[this.conditionStack.length - 1]) { 3527 return this.conditions[this.conditionStack[this.conditionStack.length - 1]].rules; 3528 } else { 3529 return this.conditions["INITIAL"].rules; 3530 } 3531 }, 3532 3533 // return the currently active lexer condition state; when an index argument is provided it produces the N-th previous condition state, if available 3534 topState:function topState (n) { 3535 n = this.conditionStack.length - 1 - Math.abs(n || 0); 3536 if (n >= 0) { 3537 return this.conditionStack[n]; 3538 } else { 3539 return "INITIAL"; 3540 } 3541 }, 3542 3543 // alias for begin(condition) 3544 pushState:function pushState (condition) { 3545 this.begin(condition); 3546 }, 3547 3548 // return the number of states currently on the stack 3549 stateStackSize:function stateStackSize() { 3550 return this.conditionStack.length; 3551 }, 3552 options: {}, 3553 /** 3554 * @class 3555 * @ignore 3556 */ 3557 performAction: function anonymous(yy,yy_,$avoiding_name_collisions,YY_START) { 3558 var YYSTATE=YY_START; 3559 switch($avoiding_name_collisions) { 3560 case 0:/* ignore */ 3561 break; 3562 case 1:return 78 3563 break; 3564 case 2:return 78 3565 break; 3566 case 3: return 77; 3567 break; 3568 case 4: return 77; 3569 break; 3570 case 5:/* ignore comment */ 3571 break; 3572 case 6:/* ignore multiline comment */ 3573 break; 3574 case 7:return 7 3575 break; 3576 case 8:return 12 3577 break; 3578 case 9:return 14 3579 break; 3580 case 10:return 17 3581 break; 3582 case 11:return 15 3583 break; 3584 case 12:return 91 3585 break; 3586 case 13:return 93 3587 break; 3588 case 14:return 19 3589 break; 3590 case 15:return 23 3591 break; 3592 case 16:return 21 3593 break; 3594 case 17:return 75 3595 break; 3596 case 18:return 76 3597 break; 3598 case 19:return 74 3599 break; 3600 case 20:return 80 3601 break; 3602 case 21:return 94 3603 break; 3604 case 22:return 94 3605 break; 3606 case 23:return 82 3607 break; 3608 case 24:return 83 3609 break; 3610 case 25:return 26 3611 break; 3612 case 26:return 27 3613 break; 3614 case 27:return 16 3615 break; 3616 case 28:return '#' 3617 break; 3618 case 29:return 34 3619 break; 3620 case 30:return 35 3621 break; 3622 case 31:return 79 3623 break; 3624 case 32:return 64 3625 break; 3626 case 33:return 65 3627 break; 3628 case 34:return 66 3629 break; 3630 case 35:return 8 3631 break; 3632 case 36:return 10 3633 break; 3634 case 37:return 58 3635 break; 3636 case 38:return 57 3637 break; 3638 case 39:return 57 3639 break; 3640 case 40:return 53 3641 break; 3642 case 41:return 54 3643 break; 3644 case 42:return 55 3645 break; 3646 case 43:return 50 3647 break; 3648 case 44:return 51 3649 break; 3650 case 45:return 47 3651 break; 3652 case 46:return 45 3653 break; 3654 case 47:return 48 3655 break; 3656 case 48:return 46 3657 break; 3658 case 49:return 41 3659 break; 3660 case 50:return 43 3661 break; 3662 case 51:return 42 3663 break; 3664 case 52:return 39 3665 break; 3666 case 53:return 37 3667 break; 3668 case 54:return 32 3669 break; 3670 case 55:return 86 3671 break; 3672 case 56:return 5 3673 break; 3674 case 57:return 20 3675 break; 3676 case 58:return 'INVALID' 3677 break; 3678 } 3679 }, 3680 rules: [/^(?:\s+)/,/^(?:[0-9]+\.[0-9]*|[0-9]*\.[0-9]+\b)/,/^(?:[0-9]+)/,/^(?:"(\\["]|[^"])*")/,/^(?:'(\\[']|[^'])*')/,/^(?:\/\/.*)/,/^(?:\/\*(.|\n|\r)*?\*\/)/,/^(?:if\b)/,/^(?:else\b)/,/^(?:while\b)/,/^(?:do\b)/,/^(?:for\b)/,/^(?:function\b)/,/^(?:map\b)/,/^(?:use\b)/,/^(?:return\b)/,/^(?:delete\b)/,/^(?:true\b)/,/^(?:false\b)/,/^(?:null\b)/,/^(?:Infinity\b)/,/^(?:->)/,/^(?:=>)/,/^(?:<<)/,/^(?:>>)/,/^(?:\{)/,/^(?:\})/,/^(?:;)/,/^(?:#)/,/^(?:\?)/,/^(?::)/,/^(?:NaN\b)/,/^(?:\.)/,/^(?:\[)/,/^(?:\])/,/^(?:\()/,/^(?:\))/,/^(?:!)/,/^(?:\^)/,/^(?:\*\*)/,/^(?:\*)/,/^(?:\/)/,/^(?:%)/,/^(?:\+)/,/^(?:-)/,/^(?:<=)/,/^(?:<)/,/^(?:>=)/,/^(?:>)/,/^(?:==)/,/^(?:~=)/,/^(?:!=)/,/^(?:&&)/,/^(?:\|\|)/,/^(?:=)/,/^(?:,)/,/^(?:$)/,/^(?:[A-Za-z_\$][A-Za-z0-9_]*)/,/^(?:.)/], 3681 conditions: {"INITIAL":{"rules":[0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58],"inclusive":true}} 3682 }); 3683 return lexer; 3684 })(); 3685 parser.lexer = lexer; 3686 /** 3687 * @class 3688 * @ignore 3689 */ 3690 function Parser () { 3691 this.yy = {}; 3692 } 3693 Parser.prototype = parser;parser.Parser = Parser; 3694 return new Parser; 3695 })(); 3696 // Work around an issue with browsers that don't support Object.getPrototypeOf() 3697 parser.yy.parseError = parser.parseError; 3698 3699 export default JXG.JessieCode; 3700