parse: function parse()

in published_versions/assets/js/316.d513d091.js [137:265]

• 105 lines of code
• 28 McCabe index (conditional complexity)

    parse: function parse(input) {
      var self = this, stack = [0], tstack = [], vstack = [null], lstack = [], table = this.table, yytext = "", yylineno = 0, yyleng = 0, TERROR = 2, EOF = 1;
      var args = lstack.slice.call(arguments, 1);
      var lexer2 = 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];
        }
      }
      lexer2.setInput(input, sharedState.yy);
      sharedState.yy.lexer = lexer2;
      sharedState.yy.parser = this;
      if (typeof lexer2.yylloc == "undefined") {
        lexer2.yylloc = {};
      }
      var yyloc = lexer2.yylloc;
      lstack.push(yyloc);
      var ranges = lexer2.options && lexer2.options.ranges;
      if (typeof sharedState.yy.parseError === "function") {
        this.parseError = sharedState.yy.parseError;
      } else {
        this.parseError = Object.getPrototypeOf(this).parseError;
      }
      function lex() {
        var token;
        token = tstack.pop() || lexer2.lex() || EOF;
        if (typeof token !== "number") {
          if (token instanceof Array) {
            tstack = token;
            token = tstack.pop();
          }
          token = self.symbols_[token] || token;
        }
        return token;
      }
      var symbol, state, action, 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 (lexer2.showPosition) {
            errStr = "Parse error on line " + (yylineno + 1) + ":\n" + lexer2.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: lexer2.match,
            token: this.terminals_[symbol] || symbol,
            line: lexer2.yylineno,
            loc: yyloc,
            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(lexer2.yytext);
            lstack.push(lexer2.yylloc);
            stack.push(action[1]);
            symbol = null;
            {
              yyleng = lexer2.yyleng;
              yytext = lexer2.yytext;
              yylineno = lexer2.yylineno;
              yyloc = lexer2.yylloc;
            }
            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;
    }