mermaid

<!DOCTYPE html> <html> <head> <title>example.js</title> <meta http-equiv="content-type" content="text/html; charset=UTF-8"> <link rel="stylesheet" media="all" href="../../../../doc-style.css" /> <script src="../../../../doc-filelist.js"></script> <script> var relativeDir = "../../../../", thisFile = "Users/knut/Documents/source/mermaid/src/diagrams/example/parser/example.js", defaultSidebar = true; </script> <script src="../../../../doc-script.js"></script> <script src="../../../../mermaid.js"></script> <link rel="stylesheet" href="../../../../mermaid.css" /> </head> <body> <div id="sidebar_wrapper"> <div id="sidebar_switch"> Files Headings </div> <div id="tree"></div> <div id="headings"> <div class="heading h1"> <a href="#example.js">example.js</a> </div> </div> </div> <div id="sidebar-toggle"></div> <div id="container"><div class="background highlight"></div> <table cellpadding="0" cellspacing="0"> <tbody> <tr> <td class="docs"> <div class="pilwrap" id="example.js"> <h1> <a href="#example.js" name="example.js" class="pilcrow">¶</a>example.js </h1> </div> </td> <td class="code highlight"></td> </tr> <tr> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-1" id="section-1">¶</a> </div> </td> <td class="code highlight"><div class="highlight"><pre>/* parser generated by jison 0.4.15 */ </pre></div> </td> </tr> <tr> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-2" id="section-2">¶</a> </div> <div class="dox"> <div class="summary">Returns a Parser object of the following structure: </div> <div class="body">Parser: { yy: {} } Parser.prototype: { yy: {}, trace: function(), symbols: {associative list: name ==> number}, terminals: {associative list: number ==> name}, productions: [...], performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate, $$, $), table: [...], defaultActions: {...}, parseError: function(str, hash), parse: function(input), lexer: { EOF: 1, parseError: function(str, hash), setInput: function(input), input: function(), unput: function(str), more: function(), less: function(n), pastInput: function(), upcomingInput: function(), showPosition: function(), testmatch: function(regex_match_array, rule_index), next: function(), lex: function(), begin: function(condition), popState: function(), _currentRules: function(), topState: function(), pushState: function(condition), options: { ranges: boolean (optional: true ==> token location info will include a .range[] member) flex: boolean (optional: true ==> flex-like lexing behaviour where the rules are tested exhaustively to find the longest match) 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) }, performAction: function(yy, yy, $avoidingname_collisions, YY_START), rules: [...], conditions: {associative list: name ==> set}, } } token location info (@$, $, etc.): { first_line: n, last_line: n, first_column: n, last_column: n, range: [start_number, end_number] (where the numbers are indexes into the input string, regular zero-based) } the parseError function receives a 'hash' object with these members for lexer and parser errors: { text: (matched text) token: (the produced terminal token, if any) line: (yylineno) } while parser (grammar) errors will also provide these members, i.e. parser errors deliver a superset of attributes: { loc: (yylloc) expected: (string describing the set of expected tokens) recoverable: (boolean: TRUE when the parser has a error recovery rule available for this particular error) } </div> </div> </td> <td class="code highlight"><div class="highlight"><pre> var parser = (function(){ var o=function(k,v,o,l){for(o=o||{},l=k.length;l--;o[k[l]]=v);return o},$V0=[6,9,10,12]; var parser = {trace: function trace() { }, yy: {}, symbols_: {"error":2,"start":3,"info":4,"document":5,"EOF":6,"line":7,"statement":8,"NL":9,"showInfo":10,"message":11,"say":12,"TXT":13,"$accept":0,"$end":1}, terminals_: {2:"error",4:"info",6:"EOF",9:"NL",10:"showInfo",12:"say",13:"TXT"}, productions_: [0,[3,3],[5,0],[5,2],[7,1],[7,1],[8,1],[8,1],[11,2]], performAction: function anonymous(yytext, yyleng, yylineno, yy, yystate /* action[1] */, $$ /* vstack */, _$ /* lstack */) { /* this == yyval */ var $0 = $$.length - 1; switch (yystate) { case 1: return yy; break; case 4: break; case 6: yy.setInfo(true); break; case 7: yy.setMessage($$[$0]); break; case 8: this.$ = $$[$0-1].substring(1).trim().replace(/\\n/gm, "\n"); break; } }, table: [{3:1,4:[1,2]},{1:[3]},o($V0,[2,2],{5:3}),{6:[1,4],7:5,8:6,9:[1,7],10:[1,8],11:9,12:[1,10]},{1:[2,1]},o($V0,[2,3]),o($V0,[2,4]),o($V0,[2,5]),o($V0,[2,6]),o($V0,[2,7]),{13:[1,11]},o($V0,[2,8])], defaultActions: {4:[2,1]}, parseError: function parseError(str, hash) { if (hash.recoverable) { this.trace(str); } else { throw new Error(str); } }, parse: function parse(input) { var self = this, stack = [0], tstack = [], vstack = [null], lstack = [], table = this.table, yytext = '', yylineno = 0, yyleng = 0, recovering = 0, TERROR = 2, EOF = 1; var args = lstack.slice.call(arguments, 1); var lexer = Object.create(this.lexer); var sharedState = { yy: {} }; for (var k in this.yy) { if (Object.prototype.hasOwnProperty.call(this.yy, k)) { sharedState.yy[k] = this.yy[k]; } } lexer.setInput(input, sharedState.yy); sharedState.yy.lexer = lexer; sharedState.yy.parser = this; if (typeof lexer.yylloc == 'undefined') { lexer.yylloc = {}; } var yyloc = lexer.yylloc; lstack.push(yyloc); var ranges = lexer.options && lexer.options.ranges; if (typeof sharedState.yy.parseError === 'function') { this.parseError = sharedState.yy.parseError; } else { this.parseError = Object.getPrototypeOf(this).parseError; } function popStack(n) { stack.length = stack.length - 2 * n; vstack.length = vstack.length - n; lstack.length = lstack.length - n; } _token_stack: function lex() { var token; token = lexer.lex() || EOF; if (typeof token !== 'number') { token = self.symbols_[token] || token; } return token; } var symbol, preErrorSymbol, state, action, a, r, yyval = {}, p, len, newState, expected; while (true) { state = stack[stack.length - 1]; if (this.defaultActions[state]) { action = this.defaultActions[state]; } else { if (symbol === null || typeof symbol == 'undefined') { symbol = lex(); } action = table[state] && table[state][symbol]; } if (typeof action === 'undefined' || !action.length || !action[0]) { var errStr = ''; expected = []; for (p in table[state]) { if (this.terminals_[p] && p > TERROR) { expected.push('\'' + this.terminals_[p] + '\''); } } if (lexer.showPosition) { errStr = 'Parse error on line ' + (yylineno + 1) + ':\n' + lexer.showPosition() + '\nExpecting ' + expected.join(', ') + ', got \'' + (this.terminals_[symbol] || symbol) + '\''; } else { errStr = 'Parse error on line ' + (yylineno + 1) + ': Unexpected ' + (symbol == EOF ? 'end of input' : '\'' + (this.terminals_[symbol] || symbol) + '\''); } this.parseError(errStr, { text: lexer.match, token: this.terminals_[symbol] || symbol, line: lexer.yylineno, loc: yyloc, expected: expected }); } if (action[0] instanceof Array && action.length > 1) { throw new Error('Parse Error: multiple actions possible at state: ' + state + ', token: ' + symbol); } switch (action[0]) { case 1: stack.push(symbol); vstack.push(lexer.yytext); lstack.push(lexer.yylloc); stack.push(action[1]); symbol = null; if (!preErrorSymbol) { yyleng = lexer.yyleng; yytext = lexer.yytext; yylineno = lexer.yylineno; yyloc = lexer.yylloc; if (recovering > 0) { recovering--; } } else { symbol = preErrorSymbol; preErrorSymbol = null; } break; case 2: len = this.productions_[action[1]][1]; yyval.$ = vstack[vstack.length - len]; yyval._$ = { first_line: lstack[lstack.length - (len || 1)].first_line, last_line: lstack[lstack.length - 1].last_line, first_column: lstack[lstack.length - (len || 1)].first_column, last_column: lstack[lstack.length - 1].last_column }; if (ranges) { yyval._$.range = [ lstack[lstack.length - (len || 1)].range[0], lstack[lstack.length - 1].range[1] ]; } r = this.performAction.apply(yyval, [ yytext, yyleng, yylineno, sharedState.yy, action[1], vstack, lstack ].concat(args)); if (typeof r !== 'undefined') { return r; } if (len) { stack = stack.slice(0, -1 * len * 2); vstack = vstack.slice(0, -1 * len); lstack = lstack.slice(0, -1 * len); } stack.push(this.productions_[action[1]][0]); vstack.push(yyval.$); lstack.push(yyval._$); newState = table[stack[stack.length - 2]][stack[stack.length - 1]]; stack.push(newState); break; case 3: return true; } } return true; }}; /* generated by jison-lex 0.3.4 */ var lexer = (function(){ var lexer = ({ EOF:1, parseError:function parseError(str, hash) { if (this.yy.parser) { this.yy.parser.parseError(str, hash); } else { throw new Error(str); } }, </pre></div> </td> </tr> <tr> <td class="docs"> <div class="pilwrap"> <a class="pilcrow" href="#section-3" id="section-3">¶</a> </div> resets the lexer, sets new input </td> <td class="code highlight"><div class="highlight"><pre> setInput:function (input, yy) { this.yy = yy || this.yy || {}; this._input = input; this._more = this._backtrack = this.done = false; this.yylineno = this.yyleng = 0; this.yytext = this.matched = this.match = ''<span