unput: function()

in published_versions/assets/js/996.f8506838.js [319:343]

• 16 lines of code
• 2 McCabe index (conditional complexity)

      unput: function(ch) {
        var len = ch.length;
        var lines = ch.split(/(?:\r\n?|\n)/g);
        this._input = ch + this._input;
        this.yytext = this.yytext.substr(0, this.yytext.length - len);
        this.offset -= len;
        var oldLines = this.match.split(/(?:\r\n?|\n)/g);
        this.match = this.match.substr(0, this.match.length - 1);
        this.matched = this.matched.substr(0, this.matched.length - 1);
        if (lines.length - 1) {
          this.yylineno -= lines.length - 1;
        }
        var r = this.yylloc.range;
        this.yylloc = {
          first_line: this.yylloc.first_line,
          last_line: this.yylineno + 1,
          first_column: this.yylloc.first_column,
          last_column: lines ? (lines.length === oldLines.length ? this.yylloc.first_column : 0) + oldLines[oldLines.length - lines.length].length - lines[0].length : this.yylloc.first_column - len
        };
        if (this.options.ranges) {
          this.yylloc.range = [r[0], r[0] + this.yyleng - len];
        }
        this.yyleng = this.yytext.length;
        return this;
      },