parser.js

module.exports = (function() {
  "use strict";

  /*
   * Generated by PEG.js 0.9.0.
   *
   * http://pegjs.org/
   */

  function peg$subclass(child, parent) {
    function ctor() { this.constructor = child; }
    ctor.prototype = parent.prototype;
    child.prototype = new ctor();
  }

  function peg$SyntaxError(message, expected, found, location) {
    this.message  = message;
    this.expected = expected;
    this.found    = found;
    this.location = location;
    this.name     = "SyntaxError";

    if (typeof Error.captureStackTrace === "function") {
      Error.captureStackTrace(this, peg$SyntaxError);
    }
  }

  peg$subclass(peg$SyntaxError, Error);

  function peg$parse(input) {
    var options = arguments.length > 1 ? arguments[1] : {},
        parser  = this,

        peg$FAILED = {},

        peg$startRuleFunctions = { start: peg$parsestart },
        peg$startRuleFunction  = peg$parsestart,

        peg$c0 = function(node) { 
                return node[0]; 
            },
        peg$c1 = function() { 
                return {};
            },
        peg$c2 = function(operator) { 
                return { 
                    'operator': operator 
                    }; 
            },
        peg$c3 = function(operator, right) { 
                return right; 
            },
        peg$c4 = function(left, operator, right) { 
                var node= { 
                    'left':left 
                    };
                
                var right = 
                        right.length == 0 
                        ? null 
                        : right[0]['right'] == null 
                            ? right[0]['left'] 
                            : right[0];
                            
                if (right != null) 
                { 
                    node['operator'] = operator==''? '<implicit>' : operator[0];
                    node['right'] = right;
                } 
                
                return node;
            },
        peg$c5 = function(field_exp) { 
                return field_exp; 
            },
        peg$c6 = "(",
        peg$c7 = { type: "literal", value: "(", description: "\"(\"" },
        peg$c8 = ")",
        peg$c9 = { type: "literal", value: ")", description: "\")\"" },
        peg$c10 = function(op, fieldname, range) { 
                range['field'] = 
                    fieldname == '' 
                        ? "<implicit>"
                        : fieldname; 
                    
                if ( '' != op ) {
                    range['prefix'] = op;
                    }
                return range; 
            },
        peg$c11 = function(op, fieldname, node) { 
                node['field']= fieldname; 
                if ( '' != op ) {
                    node['prefix'] = op;
                }
                return node; 
            },
        peg$c12 = function(op, fieldname, term) { 
                var fieldexp = {
                    'field': 
                        fieldname == '' 
                            ? "<implicit>"
                            : fieldname           
                    }; 
                if ( '' != op ) {
                	fieldexp['prefix'] = op;
                    }
                for(var key in term)
                    fieldexp[key] = term[key];
                    
                return fieldexp; 
            },
        peg$c13 = /^[:]/,
        peg$c14 = { type: "class", value: "[:]", description: "[:]" },
        peg$c15 = function(fieldname) { 
                return fieldname; 
            },
        peg$c16 = function(term) {
                var result = { 'term': term };
                
                return result;
            },
        peg$c17 = function(term) {
                var result = { 'term': term };
                return result;
            },
        peg$c18 = function(term) { 
                return term.join('');
            },
        peg$c19 = ".",
        peg$c20 = { type: "literal", value: ".", description: "\".\"" },
        peg$c21 = /^[^: \t\r\n\f{}()"+-\/[\]]/,
        peg$c22 = { type: "class", value: "[^: \\t\\r\\n\\f\\{\\}()\"+-/\\[\\]]", description: "[^: \\t\\r\\n\\f\\{\\}()\"+-/\\[\\]]" },
        peg$c23 = /^[^: \t\r\n\f{}()"+-\/\^~]/,
        peg$c24 = { type: "class", value: "[^: \\t\\r\\n\\f\\{\\}()\"+-/^~]", description: "[^: \\t\\r\\n\\f\\{\\}()\"+-/^~]" },
        peg$c25 = "\"",
        peg$c26 = { type: "literal", value: "\"", description: "\"\\\"\"" },
        peg$c27 = /^[^"]/,
        peg$c28 = { type: "class", value: "[^\"]", description: "[^\"]" },
        peg$c29 = function(term) {
                return term.join('');
            },
        peg$c30 = "~",
        peg$c31 = { type: "literal", value: "~", description: "\"~\"" },
        peg$c32 = function(proximity) {        
                return proximity;
            },
        peg$c33 = "^",
        peg$c34 = { type: "literal", value: "^", description: "\"^\"" },
        peg$c35 = function(boost) {        
                return boost;
            },
        peg$c36 = function(fuzziness) {        
                return fuzziness == '' ? 0.5 : fuzziness;
            },
        peg$c37 = "0.",
        peg$c38 = { type: "literal", value: "0.", description: "\"0.\"" },
        peg$c39 = /^[0-9]/,
        peg$c40 = { type: "class", value: "[0-9]", description: "[0-9]" },
        peg$c41 = function(val) { 
                return parseFloat("0." + val.join(''));
            },
        peg$c42 = function(val) {        
                return parseInt(val.join(''));
            },
        peg$c43 = "[",
        peg$c44 = { type: "literal", value: "[", description: "\"[\"" },
        peg$c45 = "TO",
        peg$c46 = { type: "literal", value: "TO", description: "\"TO\"" },
        peg$c47 = "]",
        peg$c48 = { type: "literal", value: "]", description: "\"]\"" },
        peg$c49 = function(term_min, term_max) { 
                return {
                    'term_min': term_min, 
                    'term_max': term_max,
                    'inclusive': true
                };
            },
        peg$c50 = "{",
        peg$c51 = { type: "literal", value: "{", description: "\"{\"" },
        peg$c52 = "}",
        peg$c53 = { type: "literal", value: "}", description: "\"}\"" },
        peg$c54 = function(term_min, term_max) { 
                return {
                    'term_min': term_min, 
                    'term_max': term_max, 
                    'inclusive': false
                };
            },
        peg$c55 = function(operator) { 
                return operator; 
            },
        peg$c56 = "OR",
        peg$c57 = { type: "literal", value: "OR", description: "\"OR\"" },
        peg$c58 = "AND",
        peg$c59 = { type: "literal", value: "AND", description: "\"AND\"" },
        peg$c60 = "NOT",
        peg$c61 = { type: "literal", value: "NOT", description: "\"NOT\"" },
        peg$c62 = "||",
        peg$c63 = { type: "literal", value: "||", description: "\"||\"" },
        peg$c64 = function() { return 'OR'; },
        peg$c65 = "&&",
        peg$c66 = { type: "literal", value: "&&", description: "\"&&\"" },
        peg$c67 = function() { return 'AND'; },
        peg$c68 = "+",
        peg$c69 = { type: "literal", value: "+", description: "\"+\"" },
        peg$c70 = "-",
        peg$c71 = { type: "literal", value: "-", description: "\"-\"" },
        peg$c72 = { type: "other", description: "whitespace" },
        peg$c73 = /^[ \t\r\n\f]/,
        peg$c74 = { type: "class", value: "[ \\t\\r\\n\\f]", description: "[ \\t\\r\\n\\f]" },
        peg$c75 = { type: "any", description: "any character" },

        peg$currPos          = 0,
        peg$savedPos         = 0,
        peg$posDetailsCache  = [{ line: 1, column: 1, seenCR: false }],
        peg$maxFailPos       = 0,
        peg$maxFailExpected  = [],
        peg$silentFails      = 0,

        peg$result;

    if ("startRule" in options) {
      if (!(options.startRule in peg$startRuleFunctions)) {
        throw new Error("Can't start parsing from rule \"" + options.startRule + "\".");
      }

      peg$startRuleFunction = peg$startRuleFunctions[options.startRule];
    }

    function text() {
      return input.substring(peg$savedPos, peg$currPos);
    }

    function location() {
      return peg$computeLocation(peg$savedPos, peg$currPos);
    }

    function expected(description) {
      throw peg$buildException(
        null,
        [{ type: "other", description: description }],
        input.substring(peg$savedPos, peg$currPos),
        peg$computeLocation(peg$savedPos, peg$currPos)
      );
    }

    function error(message) {
      throw peg$buildException(
        message,
        null,
        input.substring(peg$savedPos, peg$currPos),
        peg$computeLocation(peg$savedPos, peg$currPos)
      );
    }

    function peg$computePosDetails(pos) {
      var details = peg$posDetailsCache[pos],
          p, ch;

      if (details) {
        return details;
      } else {
        p = pos - 1;
        while (!peg$posDetailsCache[p]) {
          p--;
        }

        details = peg$posDetailsCache[p];
        details = {
          line:   details.line,
          column: details.column,
          seenCR: details.seenCR
        };

        while (p < pos) {
          ch = input.charAt(p);
          if (ch === "\n") {
            if (!details.seenCR) { details.line++; }
            details.column = 1;
            details.seenCR = false;
          } else if (ch === "\r" || ch === "\u2028" || ch === "\u2029") {
            details.line++;
            details.column = 1;
            details.seenCR = true;
          } else {
            details.column++;
            details.seenCR = false;
          }

          p++;
        }

        peg$posDetailsCache[pos] = details;
        return details;
      }
    }

    function peg$computeLocation(startPos, endPos) {
      var startPosDetails = peg$computePosDetails(startPos),
          endPosDetails   = peg$computePosDetails(endPos);

      return {
        start: {
          offset: startPos,
          line:   startPosDetails.line,
          column: startPosDetails.column
        },
        end: {
          offset: endPos,
          line:   endPosDetails.line,
          column: endPosDetails.column
        }
      };
    }

    function peg$fail(expected) {
      if (peg$currPos < peg$maxFailPos) { return; }

      if (peg$currPos > peg$maxFailPos) {
        peg$maxFailPos = peg$currPos;
        peg$maxFailExpected = [];
      }

      peg$maxFailExpected.push(expected);
    }

    function peg$buildException(message, expected, found, location) {
      function cleanupExpected(expected) {
        var i = 1;

        expected.sort(function(a, b) {
          if (a.description < b.description) {
            return -1;
          } else if (a.description > b.description) {
            return 1;
          } else {
            return 0;
          }
        });

        while (i < expected.length) {
          if (expected[i - 1] === expected[i]) {
            expected.splice(i, 1);
          } else {
            i++;
          }
        }
      }

      function buildMessage(expected, found) {
        function stringEscape(s) {
          function hex(ch) { return ch.charCodeAt(0).toString(16).toUpperCase(); }

          return s
            .replace(/\\/g,   '\\\\')
            .replace(/"/g,    '\\"')
            .replace(/\x08/g, '\\b')
            .replace(/\t/g,   '\\t')
            .replace(/\n/g,   '\\n')
            .replace(/\f/g,   '\\f')
            .replace(/\r/g,   '\\r')
            .replace(/[\x00-\x07\x0B\x0E\x0F]/g, function(ch) { return '\\x0' + hex(ch); })
            .replace(/[\x10-\x1F\x80-\xFF]/g,    function(ch) { return '\\x'  + hex(ch); })
            .replace(/[\u0100-\u0FFF]/g,         function(ch) { return '\\u0' + hex(ch); })
            .replace(/[\u1000-\uFFFF]/g,         function(ch) { return '\\u'  + hex(ch); });
        }

        var expectedDescs = new Array(expected.length),
            expectedDesc, foundDesc, i;

        for (i = 0; i < expected.length; i++) {
          expectedDescs[i] = expected[i].description;
        }

        expectedDesc = expected.length > 1
          ? expectedDescs.slice(0, -1).join(", ")
              + " or "
              + expectedDescs[expected.length - 1]
          : expectedDescs[0];

        foundDesc = found ? "\"" + stringEscape(found) + "\"" : "end of input";

        return "Expected " + expectedDesc + " but " + foundDesc + " found.";
      }

      if (expected !== null) {
        cleanupExpected(expected);
      }

      return new peg$SyntaxError(
        message !== null ? message : buildMessage(expected, found),
        expected,
        found,
        location
      );
    }

    function peg$parsestart() {
      var s0, s1, s2, s3;

      s0 = peg$currPos;
      s1 = [];
      s2 = peg$parse_();
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parse_();
      }
      if (s1 !== peg$FAILED) {
        s2 = [];
        s3 = peg$parsenode();
        if (s3 !== peg$FAILED) {
          while (s3 !== peg$FAILED) {
            s2.push(s3);
            s3 = peg$parsenode();
          }
        } else {
          s2 = peg$FAILED;
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c0(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = [];
        s2 = peg$parse_();
        while (s2 !== peg$FAILED) {
          s1.push(s2);
          s2 = peg$parse_();
        }
        if (s1 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c1();
        }
        s0 = s1;
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = peg$parseEOF();
          if (s1 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c1();
          }
          s0 = s1;
        }
      }

      return s0;
    }

    function peg$parsenode() {
      var s0, s1, s2, s3, s4;

      s0 = peg$currPos;
      s1 = peg$parseoperator_exp();
      if (s1 !== peg$FAILED) {
        s2 = peg$parseEOF();
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c2(s1);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseoperator_exp();
        if (s1 !== peg$FAILED) {
          s2 = peg$parsenode();
          if (s2 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c3(s1, s2);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = peg$parsegroup_exp();
          if (s1 !== peg$FAILED) {
            s2 = [];
            s3 = peg$parseoperator_exp();
            while (s3 !== peg$FAILED) {
              s2.push(s3);
              s3 = peg$parseoperator_exp();
            }
            if (s2 !== peg$FAILED) {
              s3 = [];
              s4 = peg$parsenode();
              while (s4 !== peg$FAILED) {
                s3.push(s4);
                s4 = peg$parsenode();
              }
              if (s3 !== peg$FAILED) {
                peg$savedPos = s0;
                s1 = peg$c4(s1, s2, s3);
                s0 = s1;
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        }
      }

      return s0;
    }

    function peg$parsegroup_exp() {
      var s0, s1, s2, s3;

      s0 = peg$currPos;
      s1 = peg$parsefield_exp();
      if (s1 !== peg$FAILED) {
        s2 = [];
        s3 = peg$parse_();
        while (s3 !== peg$FAILED) {
          s2.push(s3);
          s3 = peg$parse_();
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c5(s1);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$parseparen_exp();
      }

      return s0;
    }

    function peg$parseparen_exp() {
      var s0, s1, s2, s3, s4, s5;

      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 40) {
        s1 = peg$c6;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c7); }
      }
      if (s1 !== peg$FAILED) {
        s2 = [];
        s3 = peg$parsenode();
        if (s3 !== peg$FAILED) {
          while (s3 !== peg$FAILED) {
            s2.push(s3);
            s3 = peg$parsenode();
          }
        } else {
          s2 = peg$FAILED;
        }
        if (s2 !== peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 41) {
            s3 = peg$c8;
            peg$currPos++;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c9); }
          }
          if (s3 !== peg$FAILED) {
            s4 = [];
            s5 = peg$parse_();
            while (s5 !== peg$FAILED) {
              s4.push(s5);
              s5 = peg$parse_();
            }
            if (s4 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c0(s2);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parsefield_exp() {
      var s0, s1, s2, s3;

      s0 = peg$currPos;
      s1 = peg$parseprefix_operator_exp();
      if (s1 === peg$FAILED) {
        s1 = null;
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parsefieldname();
        if (s2 === peg$FAILED) {
          s2 = null;
        }
        if (s2 !== peg$FAILED) {
          s3 = peg$parserange_operator_exp();
          if (s3 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c10(s1, s2, s3);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseprefix_operator_exp();
        if (s1 === peg$FAILED) {
          s1 = null;
        }
        if (s1 !== peg$FAILED) {
          s2 = peg$parsefieldname();
          if (s2 !== peg$FAILED) {
            s3 = peg$parseparen_exp();
            if (s3 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c11(s1, s2, s3);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          s1 = peg$parseprefix_operator_exp();
          if (s1 === peg$FAILED) {
            s1 = null;
          }
          if (s1 !== peg$FAILED) {
            s2 = peg$parsefieldname();
            if (s2 === peg$FAILED) {
              s2 = null;
            }
            if (s2 !== peg$FAILED) {
              s3 = peg$parseterm();
              if (s3 !== peg$FAILED) {
                peg$savedPos = s0;
                s1 = peg$c12(s1, s2, s3);
                s0 = s1;
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        }
      }

      return s0;
    }

    function peg$parsefieldname() {
      var s0, s1, s2;

      s0 = peg$currPos;
      s1 = peg$parseunquoted_field();
      if (s1 !== peg$FAILED) {
        if (peg$c13.test(input.charAt(peg$currPos))) {
          s2 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c14); }
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c15(s1);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parseterm() {
      var s0, s1, s2, s3;

      s0 = peg$currPos;
      s1 = peg$parsequoted_term();
      if (s1 !== peg$FAILED) {
        s2 = [];
        s3 = peg$parse_();
        while (s3 !== peg$FAILED) {
          s2.push(s3);
          s3 = peg$parse_();
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c16(s1);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseunquoted_term();
        if (s1 !== peg$FAILED) {
          s2 = [];
          s3 = peg$parse_();
          while (s3 !== peg$FAILED) {
            s2.push(s3);
            s3 = peg$parse_();
          }
          if (s2 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c17(s1);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      }

      return s0;
    }

    function peg$parseunquoted_term() {
      var s0, s1, s2;

      s0 = peg$currPos;
      s1 = [];
      s2 = peg$parseterm_char();
      if (s2 !== peg$FAILED) {
        while (s2 !== peg$FAILED) {
          s1.push(s2);
          s2 = peg$parseterm_char();
        }
      } else {
        s1 = peg$FAILED;
      }
      if (s1 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c18(s1);
      }
      s0 = s1;

      return s0;
    }

    function peg$parseterm_char() {
      var s0;

      if (input.charCodeAt(peg$currPos) === 46) {
        s0 = peg$c19;
        peg$currPos++;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c20); }
      }
      if (s0 === peg$FAILED) {
        if (peg$c21.test(input.charAt(peg$currPos))) {
          s0 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s0 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c22); }
        }
      }

      return s0;
    }

    function peg$parseunquoted_field() {
      var s0, s1, s2;

      s0 = peg$currPos;
      s1 = [];
      s2 = peg$parsefield_char();
      if (s2 !== peg$FAILED) {
        while (s2 !== peg$FAILED) {
          s1.push(s2);
          s2 = peg$parsefield_char();
        }
      } else {
        s1 = peg$FAILED;
      }
      if (s1 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c18(s1);
      }
      s0 = s1;

      return s0;
    }

    function peg$parsefield_char() {
      var s0;

      if (input.charCodeAt(peg$currPos) === 46) {
        s0 = peg$c19;
        peg$currPos++;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c20); }
      }
      if (s0 === peg$FAILED) {
        if (peg$c23.test(input.charAt(peg$currPos))) {
          s0 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s0 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c24); }
        }
      }

      return s0;
    }

    function peg$parsequoted_term() {
      var s0, s1, s2, s3;

      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 34) {
        s1 = peg$c25;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c26); }
      }
      if (s1 !== peg$FAILED) {
        s2 = [];
        if (peg$c27.test(input.charAt(peg$currPos))) {
          s3 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c28); }
        }
        if (s3 !== peg$FAILED) {
          while (s3 !== peg$FAILED) {
            s2.push(s3);
            if (peg$c27.test(input.charAt(peg$currPos))) {
              s3 = input.charAt(peg$currPos);
              peg$currPos++;
            } else {
              s3 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c28); }
            }
          }
        } else {
          s2 = peg$FAILED;
        }
        if (s2 !== peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 34) {
            s3 = peg$c25;
            peg$currPos++;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c26); }
          }
          if (s3 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c29(s2);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parseproximity_modifier() {
      var s0, s1, s2;

      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 126) {
        s1 = peg$c30;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c31); }
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parseint_exp();
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c32(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parseboost_modifier() {
      var s0, s1, s2;

      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 94) {
        s1 = peg$c33;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c34); }
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parsedecimal_or_int_exp();
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c35(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parsefuzzy_modifier() {
      var s0, s1, s2;

      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 126) {
        s1 = peg$c30;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c31); }
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parsedecimal_exp();
        if (s2 === peg$FAILED) {
          s2 = null;
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c36(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parsedecimal_or_int_exp() {
      var s0;

      s0 = peg$parsedecimal_exp();
      if (s0 === peg$FAILED) {
        s0 = peg$parseint_exp();
      }

      return s0;
    }

    function peg$parsedecimal_exp() {
      var s0, s1, s2, s3;

      s0 = peg$currPos;
      if (input.substr(peg$currPos, 2) === peg$c37) {
        s1 = peg$c37;
        peg$currPos += 2;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c38); }
      }
      if (s1 !== peg$FAILED) {
        s2 = [];
        if (peg$c39.test(input.charAt(peg$currPos))) {
          s3 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c40); }
        }
        if (s3 !== peg$FAILED) {
          while (s3 !== peg$FAILED) {
            s2.push(s3);
            if (peg$c39.test(input.charAt(peg$currPos))) {
              s3 = input.charAt(peg$currPos);
              peg$currPos++;
            } else {
              s3 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c40); }
            }
          }
        } else {
          s2 = peg$FAILED;
        }
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c41(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parseint_exp() {
      var s0, s1, s2;

      s0 = peg$currPos;
      s1 = [];
      if (peg$c39.test(input.charAt(peg$currPos))) {
        s2 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c40); }
      }
      if (s2 !== peg$FAILED) {
        while (s2 !== peg$FAILED) {
          s1.push(s2);
          if (peg$c39.test(input.charAt(peg$currPos))) {
            s2 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s2 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c40); }
          }
        }
      } else {
        s1 = peg$FAILED;
      }
      if (s1 !== peg$FAILED) {
        peg$savedPos = s0;
        s1 = peg$c42(s1);
      }
      s0 = s1;

      return s0;
    }

    function peg$parserange_operator_exp() {
      var s0, s1, s2, s3, s4, s5, s6, s7;

      s0 = peg$currPos;
      if (input.charCodeAt(peg$currPos) === 91) {
        s1 = peg$c43;
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c44); }
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parseunquoted_term();
        if (s2 !== peg$FAILED) {
          s3 = [];
          s4 = peg$parse_();
          while (s4 !== peg$FAILED) {
            s3.push(s4);
            s4 = peg$parse_();
          }
          if (s3 !== peg$FAILED) {
            if (input.substr(peg$currPos, 2) === peg$c45) {
              s4 = peg$c45;
              peg$currPos += 2;
            } else {
              s4 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c46); }
            }
            if (s4 !== peg$FAILED) {
              s5 = [];
              s6 = peg$parse_();
              if (s6 !== peg$FAILED) {
                while (s6 !== peg$FAILED) {
                  s5.push(s6);
                  s6 = peg$parse_();
                }
              } else {
                s5 = peg$FAILED;
              }
              if (s5 !== peg$FAILED) {
                s6 = peg$parseunquoted_term();
                if (s6 !== peg$FAILED) {
                  if (input.charCodeAt(peg$currPos) === 93) {
                    s7 = peg$c47;
                    peg$currPos++;
                  } else {
                    s7 = peg$FAILED;
                    if (peg$silentFails === 0) { peg$fail(peg$c48); }
                  }
                  if (s7 !== peg$FAILED) {
                    peg$savedPos = s0;
                    s1 = peg$c49(s2, s6);
                    s0 = s1;
                  } else {
                    peg$currPos = s0;
                    s0 = peg$FAILED;
                  }
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        if (input.charCodeAt(peg$currPos) === 123) {
          s1 = peg$c50;
          peg$currPos++;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c51); }
        }
        if (s1 !== peg$FAILED) {
          s2 = peg$parseunquoted_term();
          if (s2 !== peg$FAILED) {
            s3 = [];
            s4 = peg$parse_();
            while (s4 !== peg$FAILED) {
              s3.push(s4);
              s4 = peg$parse_();
            }
            if (s3 !== peg$FAILED) {
              if (input.substr(peg$currPos, 2) === peg$c45) {
                s4 = peg$c45;
                peg$currPos += 2;
              } else {
                s4 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c46); }
              }
              if (s4 !== peg$FAILED) {
                s5 = [];
                s6 = peg$parse_();
                if (s6 !== peg$FAILED) {
                  while (s6 !== peg$FAILED) {
                    s5.push(s6);
                    s6 = peg$parse_();
                  }
                } else {
                  s5 = peg$FAILED;
                }
                if (s5 !== peg$FAILED) {
                  s6 = peg$parseunquoted_term();
                  if (s6 !== peg$FAILED) {
                    if (input.charCodeAt(peg$currPos) === 125) {
                      s7 = peg$c52;
                      peg$currPos++;
                    } else {
                      s7 = peg$FAILED;
                      if (peg$silentFails === 0) { peg$fail(peg$c53); }
                    }
                    if (s7 !== peg$FAILED) {
                      peg$savedPos = s0;
                      s1 = peg$c54(s2, s6);
                      s0 = s1;
                    } else {
                      peg$currPos = s0;
                      s0 = peg$FAILED;
                    }
                  } else {
                    peg$currPos = s0;
                    s0 = peg$FAILED;
                  }
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              } else {
                peg$currPos = s0;
                s0 = peg$FAILED;
              }
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      }

      return s0;
    }

    function peg$parseoperator_exp() {
      var s0, s1, s2, s3, s4;

      s0 = peg$currPos;
      s1 = [];
      s2 = peg$parse_();
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parse_();
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parseoperator();
        if (s2 !== peg$FAILED) {
          s3 = [];
          s4 = peg$parse_();
          if (s4 !== peg$FAILED) {
            while (s4 !== peg$FAILED) {
              s3.push(s4);
              s4 = peg$parse_();
            }
          } else {
            s3 = peg$FAILED;
          }
          if (s3 !== peg$FAILED) {
            peg$savedPos = s0;
            s1 = peg$c55(s2);
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = [];
        s2 = peg$parse_();
        while (s2 !== peg$FAILED) {
          s1.push(s2);
          s2 = peg$parse_();
        }
        if (s1 !== peg$FAILED) {
          s2 = peg$parseoperator();
          if (s2 !== peg$FAILED) {
            s3 = peg$parseEOF();
            if (s3 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c55(s2);
              s0 = s1;
            } else {
              peg$currPos = s0;
              s0 = peg$FAILED;
            }
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      }

      return s0;
    }

    function peg$parseoperator() {
      var s0, s1;

      if (input.substr(peg$currPos, 2) === peg$c56) {
        s0 = peg$c56;
        peg$currPos += 2;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c57); }
      }
      if (s0 === peg$FAILED) {
        if (input.substr(peg$currPos, 3) === peg$c58) {
          s0 = peg$c58;
          peg$currPos += 3;
        } else {
          s0 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c59); }
        }
        if (s0 === peg$FAILED) {
          if (input.substr(peg$currPos, 3) === peg$c60) {
            s0 = peg$c60;
            peg$currPos += 3;
          } else {
            s0 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c61); }
          }
          if (s0 === peg$FAILED) {
            s0 = peg$currPos;
            if (input.substr(peg$currPos, 2) === peg$c62) {
              s1 = peg$c62;
              peg$currPos += 2;
            } else {
              s1 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$c63); }
            }
            if (s1 !== peg$FAILED) {
              peg$savedPos = s0;
              s1 = peg$c64();
            }
            s0 = s1;
            if (s0 === peg$FAILED) {
              s0 = peg$currPos;
              if (input.substr(peg$currPos, 2) === peg$c65) {
                s1 = peg$c65;
                peg$currPos += 2;
              } else {
                s1 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$c66); }
              }
              if (s1 !== peg$FAILED) {
                peg$savedPos = s0;
                s1 = peg$c67();
              }
              s0 = s1;
            }
          }
        }
      }

      return s0;
    }

    function peg$parseprefix_operator_exp() {
      var s0, s1, s2;

      s0 = peg$currPos;
      s1 = [];
      s2 = peg$parse_();
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        s2 = peg$parse_();
      }
      if (s1 !== peg$FAILED) {
        s2 = peg$parseprefix_operator();
        if (s2 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$c55(s2);
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    function peg$parseprefix_operator() {
      var s0;

      if (input.charCodeAt(peg$currPos) === 43) {
        s0 = peg$c68;
        peg$currPos++;
      } else {
        s0 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c69); }
      }
      if (s0 === peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 45) {
          s0 = peg$c70;
          peg$currPos++;
        } else {
          s0 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$c71); }
        }
      }

      return s0;
    }

    function peg$parse_() {
      var s0, s1;

      peg$silentFails++;
      s0 = [];
      if (peg$c73.test(input.charAt(peg$currPos))) {
        s1 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c74); }
      }
      if (s1 !== peg$FAILED) {
        while (s1 !== peg$FAILED) {
          s0.push(s1);
          if (peg$c73.test(input.charAt(peg$currPos))) {
            s1 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s1 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$c74); }
          }
        }
      } else {
        s0 = peg$FAILED;
      }
      peg$silentFails--;
      if (s0 === peg$FAILED) {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c72); }
      }

      return s0;
    }

    function peg$parseEOF() {
      var s0, s1;

      s0 = peg$currPos;
      peg$silentFails++;
      if (input.length > peg$currPos) {
        s1 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$c75); }
      }
      peg$silentFails--;
      if (s1 === peg$FAILED) {
        s0 = void 0;
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }

      return s0;
    }

    peg$result = peg$startRuleFunction();

    if (peg$result !== peg$FAILED && peg$currPos === input.length) {
      return peg$result;
    } else {
      if (peg$result !== peg$FAILED && peg$currPos < input.length) {
        peg$fail({ type: "end", description: "end of input" });
      }

      throw peg$buildException(
        null,
        peg$maxFailExpected,
        peg$maxFailPos < input.length ? input.charAt(peg$maxFailPos) : null,
        peg$maxFailPos < input.length
          ? peg$computeLocation(peg$maxFailPos, peg$maxFailPos + 1)
          : peg$computeLocation(peg$maxFailPos, peg$maxFailPos)
      );
    }
  }

  return {
    SyntaxError: peg$SyntaxError,
    parse:       peg$parse
  };
})();