// Generated by Peggy 1.2.0.
//
// https://peggyjs.org/

"use strict";


    function toFixed(x) {
        if (Math.abs(x) < 1.0) {
            var e = parseInt(x.toString().split('e-')[1]);
            if (e) {
                x *= Math.pow(10,e-1);
                x = '0.' + (new Array(e)).join('0') + x.toString().substring(2);
            }
        } else {
            var e = parseInt(x.toString().split('+')[1]);
            if (e > 20) {
                e -= 20;
                x /= Math.pow(10,e);
                x += (new Array(e+1)).join('0');
            }
        }
        x = x.toString();
		if(!x.includes(".")) {
			x += ".";
    	}
        return x;
    }
    
    class OpAdd {
    	constructor(left, right) {
        	this.left = left;
            this.right = right;
        }
        gen(ctx) {
        	return "(" + this.left.gen(ctx) + "+" + this.right.gen(ctx) + ")";
        }
        reduce() {
            const left = this.left.reduce();
            const right = this.right.reduce();
            if(left !== null && right !== null) {
                return new Vec2(left.re + right.re, left.im + right.im);
            } else {
                if(left !== null) {
                    this.left = left;
                } else if(right !== null) {
                    this.right = right;
                }
                return null
            }
        }
    }
    class OpSub {
    	constructor(left, right) {
        	this.left = left;
            this.right = right;
        }
        gen(ctx) {
        	return "(" + this.left.gen(ctx) + "-" + this.right.gen(ctx) + ")";
        }
        reduce() {
            const left = this.left.reduce();
            const right = this.right.reduce();
            if(left !== null && right !== null) {
                return new Vec2(left.re - right.re, left.im - right.im);
            } else {
                if(left !== null) {
                    this.left = left;
                } else if(right !== null) {
                    this.right = right;
                }
                return null
            }
        }
    }
    class OpNeg {
    	constructor(arg) {
        	this.arg = arg;
        }
        gen(ctx) {
        	return "(-(" + this.arg.gen(ctx) + "))";
        }
        reduce() {
            const arg = this.arg.reduce();
            if(arg !== null) {
                return new Vec2(-arg.re, -arg.im);
            } else {
                return null
            }
        }
    }
    class Fn {
    	constructor(name, args, argoff) {
			this.name = name;
        	this.args = args;
            this.argoff = argoff;
        }
        gen(ctx) {
            let name = this.name + "$" + this.args.length;
            if(ctx[name] === undefined) {
                throw "Error: the function " + this.name + " does not exist or has the wrong number of arguments";
            }
            if(this.argoff != null) {
                name += "_o";
            }
            if(ctx[name] === undefined) {
                throw "Error: the function " + this.name + " cannot take an argument offset";
            }
            let s = ctx[name] + "(";
            if(this.argoff != null) {
                s += toFixed(this.argoff) + ",";
            }
            for(const a of this.args) {
                s += a.gen(ctx) + ",";
            }
            s = s.slice(0,-1) + ")";
        	return s;
        }
        reduce() {
            for(const i in this.args) {
                const a = this.args[i];
                const r = a.reduce();
                if(r !== null) {
                    this.args[i] = r;
                }
            }
            return null;
        }
    }
    class Variable {
    	constructor(name) {
			this.name = name;
        }
        gen(ctx) {
            if(ctx[this.name] === undefined) {
                throw "Error: " + this.name + " is not a variable";
            }
        	return ctx[this.name];
        }
        reduce() {
            return null;
        }
    }
    class Vec2 {
		constructor(re, im) {
        	this.re = re;
            this.im = im;
        }
        gen(ctx) {
        	return "vec2(" + toFixed(this.re) + "," + toFixed(this.im) + ")";
        }
        reduce() {
            return this;
        }
    }
    class Conditional {
        constructor(cond) {
            this.cond = cond;
        }
        gen(ctx) {
            let res = "";
            for(const part of this.cond) {
                if(part.length == 2) {
                    res += "(" + part[0].gen(ctx) + ").x>0.0 ? (" + part[1].gen(ctx) + ") : ";
                } else {
                    res += part[0].gen(ctx);
                }
            }
            return "(" + res + ")";
        }
        reduce() {
            return null;
        }
    }


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

function peg$SyntaxError(message, expected, found, location) {
  var self = Error.call(this, message);
  if (Object.setPrototypeOf) {
    Object.setPrototypeOf(self, peg$SyntaxError.prototype);
  }
  self.expected = expected;
  self.found = found;
  self.location = location;
  self.name = "SyntaxError";
  return self;
}

peg$subclass(peg$SyntaxError, Error);

function peg$padEnd(str, targetLength, padString) {
  padString = padString || " ";
  if (str.length > targetLength) { return str; }
  targetLength -= str.length;
  padString += padString.repeat(targetLength);
  return str + padString.slice(0, targetLength);
}

peg$SyntaxError.prototype.format = function(sources) {
  var str = "Error: " + this.message;
  if (this.location) {
    var src = null;
    var k;
    for (k = 0; k < sources.length; k++) {
      if (sources[k].source === this.location.source) {
        src = sources[k].text.split(/\r\n|\n|\r/g);
        break;
      }
    }
    var s = this.location.start;
    var loc = this.location.source + ":" + s.line + ":" + s.column;
    if (src) {
      var e = this.location.end;
      var filler = peg$padEnd("", s.line.toString().length);
      var line = src[s.line - 1];
      var last = s.line === e.line ? e.column : line.length + 1;
      str += "\n --> " + loc + "\n"
          + filler + " |\n"
          + s.line + " | " + line + "\n"
          + filler + " | " + peg$padEnd("", s.column - 1)
          + peg$padEnd("", last - s.column, "^");
    } else {
      str += "\n at " + loc;
    }
  }
  return str;
};

peg$SyntaxError.buildMessage = function(expected, found) {
  var DESCRIBE_EXPECTATION_FNS = {
    literal: function(expectation) {
      return "\"" + literalEscape(expectation.text) + "\"";
    },

    class: function(expectation) {
      var escapedParts = expectation.parts.map(function(part) {
        return Array.isArray(part)
          ? classEscape(part[0]) + "-" + classEscape(part[1])
          : classEscape(part);
      });

      return "[" + (expectation.inverted ? "^" : "") + escapedParts + "]";
    },

    any: function() {
      return "any character";
    },

    end: function() {
      return "end of input";
    },

    other: function(expectation) {
      return expectation.description;
    }
  };

  function hex(ch) {
    return ch.charCodeAt(0).toString(16).toUpperCase();
  }

  function literalEscape(s) {
    return s
      .replace(/\\/g, "\\\\")
      .replace(/"/g,  "\\\"")
      .replace(/\0/g, "\\0")
      .replace(/\t/g, "\\t")
      .replace(/\n/g, "\\n")
      .replace(/\r/g, "\\r")
      .replace(/[\x00-\x0F]/g,          function(ch) { return "\\x0" + hex(ch); })
      .replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return "\\x"  + hex(ch); });
  }

  function classEscape(s) {
    return s
      .replace(/\\/g, "\\\\")
      .replace(/\]/g, "\\]")
      .replace(/\^/g, "\\^")
      .replace(/-/g,  "\\-")
      .replace(/\0/g, "\\0")
      .replace(/\t/g, "\\t")
      .replace(/\n/g, "\\n")
      .replace(/\r/g, "\\r")
      .replace(/[\x00-\x0F]/g,          function(ch) { return "\\x0" + hex(ch); })
      .replace(/[\x10-\x1F\x7F-\x9F]/g, function(ch) { return "\\x"  + hex(ch); });
  }

  function describeExpectation(expectation) {
    return DESCRIBE_EXPECTATION_FNS[expectation.type](expectation);
  }

  function describeExpected(expected) {
    var descriptions = expected.map(describeExpectation);
    var i, j;

    descriptions.sort();

    if (descriptions.length > 0) {
      for (i = 1, j = 1; i < descriptions.length; i++) {
        if (descriptions[i - 1] !== descriptions[i]) {
          descriptions[j] = descriptions[i];
          j++;
        }
      }
      descriptions.length = j;
    }

    switch (descriptions.length) {
      case 1:
        return descriptions[0];

      case 2:
        return descriptions[0] + " or " + descriptions[1];

      default:
        return descriptions.slice(0, -1).join(", ")
          + ", or "
          + descriptions[descriptions.length - 1];
    }
  }

  function describeFound(found) {
    return found ? "\"" + literalEscape(found) + "\"" : "end of input";
  }

  return "Expected " + describeExpected(expected) + " but " + describeFound(found) + " found.";
};

function peg$parse(input, options) {
  options = options !== undefined ? options : {};

  var peg$FAILED = {};
  var peg$source = options.grammarSource;

  var peg$startRuleFunctions = { Level0: peg$parseLevel0 };
  var peg$startRuleFunction = peg$parseLevel0;

  var peg$c0 = "+";
  var peg$c1 = "-";
  var peg$c2 = "*";
  var peg$c3 = "/";
  var peg$c4 = "^";
  var peg$c5 = "(";
  var peg$c6 = ")";
  var peg$c7 = "{";
  var peg$c8 = "}";
  var peg$c9 = "[";
  var peg$c10 = "]";
  var peg$c11 = "tau";
  var peg$c12 = "\u03C4";
  var peg$c13 = "t";
  var peg$c14 = "pi";
  var peg$c15 = "\u03C0";
  var peg$c16 = "p";
  var peg$c17 = ",";
  var peg$c18 = ":";
  var peg$c19 = "i";
  var peg$c20 = ".";

  var peg$r0 = /^[a-zA-Z_\u221A\u0393\u03C0\u03C4\u03B3]/;
  var peg$r1 = /^[+\-]/;
  var peg$r2 = /^[0-9]/;
  var peg$r3 = /^[ \t\n\r]/;

  var peg$e0 = peg$literalExpectation("+", false);
  var peg$e1 = peg$literalExpectation("-", false);
  var peg$e2 = peg$literalExpectation("*", false);
  var peg$e3 = peg$literalExpectation("/", false);
  var peg$e4 = peg$literalExpectation("^", false);
  var peg$e5 = peg$literalExpectation("(", false);
  var peg$e6 = peg$literalExpectation(")", false);
  var peg$e7 = peg$literalExpectation("{", false);
  var peg$e8 = peg$literalExpectation("}", false);
  var peg$e9 = peg$literalExpectation("[", false);
  var peg$e10 = peg$literalExpectation("]", false);
  var peg$e11 = peg$literalExpectation("tau", false);
  var peg$e12 = peg$literalExpectation("\u03C4", false);
  var peg$e13 = peg$literalExpectation("t", false);
  var peg$e14 = peg$literalExpectation("pi", false);
  var peg$e15 = peg$literalExpectation("\u03C0", false);
  var peg$e16 = peg$literalExpectation("p", false);
  var peg$e17 = peg$literalExpectation(",", false);
  var peg$e18 = peg$literalExpectation(":", false);
  var peg$e19 = peg$otherExpectation("varname");
  var peg$e20 = peg$classExpectation([["a", "z"], ["A", "Z"], "_", "\u221A", "\u0393", "\u03C0", "\u03C4", "\u03B3"], false, false);
  var peg$e21 = peg$otherExpectation("real");
  var peg$e22 = peg$otherExpectation("imag");
  var peg$e23 = peg$literalExpectation("i", false);
  var peg$e24 = peg$otherExpectation("number");
  var peg$e25 = peg$classExpectation(["+", "-"], false, false);
  var peg$e26 = peg$literalExpectation(".", false);
  var peg$e27 = peg$otherExpectation("digits");
  var peg$e28 = peg$classExpectation([["0", "9"]], false, false);
  var peg$e29 = peg$otherExpectation("whitespace");
  var peg$e30 = peg$classExpectation([" ", "\t", "\n", "\r"], false, false);

  var peg$f0 = function(head, tail) {
        return tail.reduce(function(result, element) {
          if (element[1] === "+") { return new OpAdd(result, element[3]); }
          if (element[1] === "-") { return new OpSub(result, element[3]); }
        }, head);
      };
  var peg$f1 = function(head, tail) {
        return tail.reduce(function(result, element) {
          if (element[1] === "*") { return new Fn("*", [result, element[3]]); }
          if (element[1] === "/") { return new Fn("/", [result, element[3]]); }
        }, head);
      };
  var peg$f2 = function(head, tail) {
        return head.reverse().reduce(function(result, element) {
          return new Fn("^", [element[0], result]);
        }, tail);
      };
  var peg$f3 = function(expr) { return expr; };
  var peg$f4 = function(cond) { return new Conditional(cond); };
  var peg$f5 = function(name, argoff, args) {
      if(typeof(name) == "string") {
          return new Fn(name, args.reverse(), argoff == null ? null : argoff[2]);
      } else {
          throw "Error: i is not a function";
      }
    };
  var peg$f6 = function(name) {
      if(typeof(name) == "string") {
          return new Variable(name);
      } else {
          return name;
      }
    };
  var peg$f7 = function(e) { return new OpNeg(e); };
  var peg$f8 = function(n) {
      console.log("AAA", n.re);
      return n.re * 6.283185307179586;
   };
  var peg$f9 = function(n) {
      return n.re * 3.141592653589793;
   };
  var peg$f10 = function(n) {
      return n.re;
   };
  var peg$f11 = function(arg, lst) { 
      lst.push(arg);
      return lst;
  };
  var peg$f12 = function(arg) { return [arg]; };
  var peg$f13 = function(cond, expr, rest) { return [].concat([[cond, expr]],rest); };
  var peg$f14 = function(expr) { return [[expr]]; };
  var peg$f15 = function() {
      if(text() === "i") {
          return new Vec2(0,1);
      } else {
          return text();
      }
    };
  var peg$f16 = function() { 
    	return new Vec2(parseFloat(text()),0); 
    };
  var peg$f17 = function() { 
    	return new Vec2(0,parseFloat(text())); 
    };

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

  var 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 offset() {
    return peg$savedPos;
  }

  function range() {
    return {
      source: peg$source,
      start: peg$savedPos,
      end: peg$currPos
    };
  }

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

  function expected(description, location) {
    location = location !== undefined
      ? location
      : peg$computeLocation(peg$savedPos, peg$currPos);

    throw peg$buildStructuredError(
      [peg$otherExpectation(description)],
      input.substring(peg$savedPos, peg$currPos),
      location
    );
  }

  function error(message, location) {
    location = location !== undefined
      ? location
      : peg$computeLocation(peg$savedPos, peg$currPos);

    throw peg$buildSimpleError(message, location);
  }

  function peg$literalExpectation(text, ignoreCase) {
    return { type: "literal", text: text, ignoreCase: ignoreCase };
  }

  function peg$classExpectation(parts, inverted, ignoreCase) {
    return { type: "class", parts: parts, inverted: inverted, ignoreCase: ignoreCase };
  }

  function peg$anyExpectation() {
    return { type: "any" };
  }

  function peg$endExpectation() {
    return { type: "end" };
  }

  function peg$otherExpectation(description) {
    return { type: "other", description: description };
  }

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

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

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

      while (p < pos) {
        if (input.charCodeAt(p) === 10) {
          details.line++;
          details.column = 1;
        } else {
          details.column++;
        }

        p++;
      }

      peg$posDetailsCache[pos] = details;

      return details;
    }
  }

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

    return {
      source: peg$source,
      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$buildSimpleError(message, location) {
    return new peg$SyntaxError(message, null, null, location);
  }

  function peg$buildStructuredError(expected, found, location) {
    return new peg$SyntaxError(
      peg$SyntaxError.buildMessage(expected, found),
      expected,
      found,
      location
    );
  }

  function peg$parseLevel0() {
    var s0, s1, s2, s3, s4, s5, s6, s7;

    s0 = peg$currPos;
    s1 = peg$parseLevel1();
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$currPos;
      s4 = peg$parse_();
      if (input.charCodeAt(peg$currPos) === 43) {
        s5 = peg$c0;
        peg$currPos++;
      } else {
        s5 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e0); }
      }
      if (s5 === peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 45) {
          s5 = peg$c1;
          peg$currPos++;
        } else {
          s5 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e1); }
        }
      }
      if (s5 !== peg$FAILED) {
        s6 = peg$parse_();
        s7 = peg$parseLevel1();
        if (s7 !== peg$FAILED) {
          s4 = [s4, s5, s6, s7];
          s3 = s4;
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      } else {
        peg$currPos = s3;
        s3 = peg$FAILED;
      }
      while (s3 !== peg$FAILED) {
        s2.push(s3);
        s3 = peg$currPos;
        s4 = peg$parse_();
        if (input.charCodeAt(peg$currPos) === 43) {
          s5 = peg$c0;
          peg$currPos++;
        } else {
          s5 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e0); }
        }
        if (s5 === peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 45) {
            s5 = peg$c1;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e1); }
          }
        }
        if (s5 !== peg$FAILED) {
          s6 = peg$parse_();
          s7 = peg$parseLevel1();
          if (s7 !== peg$FAILED) {
            s4 = [s4, s5, s6, s7];
            s3 = s4;
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      }
      peg$savedPos = s0;
      s0 = peg$f0(s1, s2);
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseLevel1() {
    var s0, s1, s2, s3, s4, s5, s6, s7;

    s0 = peg$currPos;
    s1 = peg$parseLevel2();
    if (s1 !== peg$FAILED) {
      s2 = [];
      s3 = peg$currPos;
      s4 = peg$parse_();
      if (input.charCodeAt(peg$currPos) === 42) {
        s5 = peg$c2;
        peg$currPos++;
      } else {
        s5 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e2); }
      }
      if (s5 === peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 47) {
          s5 = peg$c3;
          peg$currPos++;
        } else {
          s5 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e3); }
        }
      }
      if (s5 !== peg$FAILED) {
        s6 = peg$parse_();
        s7 = peg$parseLevel2();
        if (s7 !== peg$FAILED) {
          s4 = [s4, s5, s6, s7];
          s3 = s4;
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      } else {
        peg$currPos = s3;
        s3 = peg$FAILED;
      }
      while (s3 !== peg$FAILED) {
        s2.push(s3);
        s3 = peg$currPos;
        s4 = peg$parse_();
        if (input.charCodeAt(peg$currPos) === 42) {
          s5 = peg$c2;
          peg$currPos++;
        } else {
          s5 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e2); }
        }
        if (s5 === peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 47) {
            s5 = peg$c3;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e3); }
          }
        }
        if (s5 !== peg$FAILED) {
          s6 = peg$parse_();
          s7 = peg$parseLevel2();
          if (s7 !== peg$FAILED) {
            s4 = [s4, s5, s6, s7];
            s3 = s4;
          } else {
            peg$currPos = s3;
            s3 = peg$FAILED;
          }
        } else {
          peg$currPos = s3;
          s3 = peg$FAILED;
        }
      }
      peg$savedPos = s0;
      s0 = peg$f1(s1, s2);
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseLevel2() {
    var s0, s1, s2, s3, s4, s5, s6;

    s0 = peg$currPos;
    s1 = [];
    s2 = peg$currPos;
    s3 = peg$parseLevel3();
    if (s3 !== peg$FAILED) {
      s4 = peg$parse_();
      if (input.charCodeAt(peg$currPos) === 94) {
        s5 = peg$c4;
        peg$currPos++;
      } else {
        s5 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e4); }
      }
      if (s5 !== peg$FAILED) {
        s6 = peg$parse_();
        s3 = [s3, s4, s5, s6];
        s2 = s3;
      } else {
        peg$currPos = s2;
        s2 = peg$FAILED;
      }
    } else {
      peg$currPos = s2;
      s2 = peg$FAILED;
    }
    while (s2 !== peg$FAILED) {
      s1.push(s2);
      s2 = peg$currPos;
      s3 = peg$parseLevel3();
      if (s3 !== peg$FAILED) {
        s4 = peg$parse_();
        if (input.charCodeAt(peg$currPos) === 94) {
          s5 = peg$c4;
          peg$currPos++;
        } else {
          s5 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e4); }
        }
        if (s5 !== peg$FAILED) {
          s6 = peg$parse_();
          s3 = [s3, s4, s5, s6];
          s2 = s3;
        } else {
          peg$currPos = s2;
          s2 = peg$FAILED;
        }
      } else {
        peg$currPos = s2;
        s2 = peg$FAILED;
      }
    }
    s2 = peg$parseLevel3();
    if (s2 !== peg$FAILED) {
      peg$savedPos = s0;
      s0 = peg$f2(s1, s2);
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }

    return s0;
  }

  function peg$parseLevel3() {
    var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10;

    s0 = peg$currPos;
    s1 = peg$parse_();
    if (input.charCodeAt(peg$currPos) === 40) {
      s2 = peg$c5;
      peg$currPos++;
    } else {
      s2 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e5); }
    }
    if (s2 !== peg$FAILED) {
      s3 = peg$parse_();
      s4 = peg$parseLevel0();
      if (s4 !== peg$FAILED) {
        s5 = peg$parse_();
        if (input.charCodeAt(peg$currPos) === 41) {
          s6 = peg$c6;
          peg$currPos++;
        } else {
          s6 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e6); }
        }
        if (s6 !== peg$FAILED) {
          peg$savedPos = s0;
          s0 = peg$f3(s4);
        } 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$parse_();
      if (input.charCodeAt(peg$currPos) === 123) {
        s2 = peg$c7;
        peg$currPos++;
      } else {
        s2 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e7); }
      }
      if (s2 !== peg$FAILED) {
        s3 = peg$parse_();
        s4 = peg$parseConditionalInner();
        if (s4 !== peg$FAILED) {
          s5 = peg$parse_();
          if (input.charCodeAt(peg$currPos) === 125) {
            s6 = peg$c8;
            peg$currPos++;
          } else {
            s6 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e8); }
          }
          if (s6 !== peg$FAILED) {
            peg$savedPos = s0;
            s0 = peg$f4(s4);
          } else {
            peg$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$currPos;
        s1 = peg$parse_();
        s2 = peg$parseName();
        if (s2 !== peg$FAILED) {
          s3 = peg$parse_();
          s4 = peg$currPos;
          if (input.charCodeAt(peg$currPos) === 91) {
            s5 = peg$c9;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e9); }
          }
          if (s5 !== peg$FAILED) {
            s6 = peg$parse_();
            s7 = peg$parseArgOffset();
            if (s7 !== peg$FAILED) {
              s8 = peg$parse_();
              if (input.charCodeAt(peg$currPos) === 93) {
                s9 = peg$c10;
                peg$currPos++;
              } else {
                s9 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$e10); }
              }
              if (s9 !== peg$FAILED) {
                s10 = peg$parse_();
                s5 = [s5, s6, s7, s8, s9, s10];
                s4 = s5;
              } else {
                peg$currPos = s4;
                s4 = peg$FAILED;
              }
            } else {
              peg$currPos = s4;
              s4 = peg$FAILED;
            }
          } else {
            peg$currPos = s4;
            s4 = peg$FAILED;
          }
          if (s4 === peg$FAILED) {
            s4 = null;
          }
          if (input.charCodeAt(peg$currPos) === 40) {
            s5 = peg$c5;
            peg$currPos++;
          } else {
            s5 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e5); }
          }
          if (s5 !== peg$FAILED) {
            s6 = peg$parseParameterList();
            if (s6 !== peg$FAILED) {
              if (input.charCodeAt(peg$currPos) === 41) {
                s7 = peg$c6;
                peg$currPos++;
              } else {
                s7 = peg$FAILED;
                if (peg$silentFails === 0) { peg$fail(peg$e6); }
              }
              if (s7 !== peg$FAILED) {
                peg$savedPos = s0;
                s0 = peg$f5(s2, s4, s6);
              } 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;
          s1 = peg$parse_();
          s2 = peg$parseName();
          if (s2 !== peg$FAILED) {
            peg$savedPos = s0;
            s0 = peg$f6(s2);
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
          if (s0 === peg$FAILED) {
            s0 = peg$parseImag();
            if (s0 === peg$FAILED) {
              s0 = peg$parseReal();
              if (s0 === peg$FAILED) {
                s0 = peg$currPos;
                s1 = peg$parse_();
                if (input.charCodeAt(peg$currPos) === 45) {
                  s2 = peg$c1;
                  peg$currPos++;
                } else {
                  s2 = peg$FAILED;
                  if (peg$silentFails === 0) { peg$fail(peg$e1); }
                }
                if (s2 !== peg$FAILED) {
                  s3 = peg$parseLevel1();
                  if (s3 !== peg$FAILED) {
                    peg$savedPos = s0;
                    s0 = peg$f7(s3);
                  } else {
                    peg$currPos = s0;
                    s0 = peg$FAILED;
                  }
                } else {
                  peg$currPos = s0;
                  s0 = peg$FAILED;
                }
              }
            }
          }
        }
      }
    }

    return s0;
  }

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

    s0 = peg$currPos;
    s1 = peg$parseReal();
    if (s1 !== peg$FAILED) {
      s2 = peg$parse_();
      if (input.substr(peg$currPos, 3) === peg$c11) {
        s3 = peg$c11;
        peg$currPos += 3;
      } else {
        s3 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e11); }
      }
      if (s3 === peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 964) {
          s3 = peg$c12;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e12); }
        }
        if (s3 === peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 116) {
            s3 = peg$c13;
            peg$currPos++;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e13); }
          }
        }
      }
      if (s3 !== peg$FAILED) {
        peg$savedPos = s0;
        s0 = peg$f8(s1);
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    if (s0 === peg$FAILED) {
      s0 = peg$currPos;
      s1 = peg$parseReal();
      if (s1 !== peg$FAILED) {
        s2 = peg$parse_();
        if (input.substr(peg$currPos, 2) === peg$c14) {
          s3 = peg$c14;
          peg$currPos += 2;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e14); }
        }
        if (s3 === peg$FAILED) {
          if (input.charCodeAt(peg$currPos) === 960) {
            s3 = peg$c15;
            peg$currPos++;
          } else {
            s3 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e15); }
          }
          if (s3 === peg$FAILED) {
            if (input.charCodeAt(peg$currPos) === 112) {
              s3 = peg$c16;
              peg$currPos++;
            } else {
              s3 = peg$FAILED;
              if (peg$silentFails === 0) { peg$fail(peg$e16); }
            }
          }
        }
        if (s3 !== peg$FAILED) {
          peg$savedPos = s0;
          s0 = peg$f9(s1);
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        s1 = peg$parseReal();
        if (s1 !== peg$FAILED) {
          peg$savedPos = s0;
          s1 = peg$f10(s1);
        }
        s0 = s1;
      }
    }

    return s0;
  }

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

    s0 = peg$currPos;
    s1 = peg$parse_();
    s2 = peg$parseLevel0();
    if (s2 !== peg$FAILED) {
      s3 = peg$parse_();
      if (input.charCodeAt(peg$currPos) === 44) {
        s4 = peg$c17;
        peg$currPos++;
      } else {
        s4 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e17); }
      }
      if (s4 !== peg$FAILED) {
        s5 = peg$parseParameterList();
        if (s5 !== peg$FAILED) {
          peg$savedPos = s0;
          s0 = peg$f11(s2, s5);
        } else {
          peg$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$currPos;
      s1 = peg$parse_();
      s2 = peg$parseLevel0();
      if (s2 !== peg$FAILED) {
        s3 = peg$parse_();
        peg$savedPos = s0;
        s0 = peg$f12(s2);
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

  function peg$parseConditionalInner() {
    var s0, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11;

    s0 = peg$currPos;
    s1 = peg$parse_();
    s2 = peg$parseLevel0();
    if (s2 !== peg$FAILED) {
      s3 = peg$parse_();
      if (input.charCodeAt(peg$currPos) === 58) {
        s4 = peg$c18;
        peg$currPos++;
      } else {
        s4 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e18); }
      }
      if (s4 !== peg$FAILED) {
        s5 = peg$parse_();
        s6 = peg$parseLevel0();
        if (s6 !== peg$FAILED) {
          s7 = peg$parse_();
          if (input.charCodeAt(peg$currPos) === 44) {
            s8 = peg$c17;
            peg$currPos++;
          } else {
            s8 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e17); }
          }
          if (s8 !== peg$FAILED) {
            s9 = peg$parse_();
            s10 = peg$parseConditionalInner();
            if (s10 !== peg$FAILED) {
              s11 = peg$parse_();
              peg$savedPos = s0;
              s0 = peg$f13(s2, s6, s10);
            } else {
              peg$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$currPos;
      s1 = peg$parse_();
      s2 = peg$parseLevel0();
      if (s2 !== peg$FAILED) {
        s3 = peg$parse_();
        peg$savedPos = s0;
        s0 = peg$f14(s2);
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = peg$currPos;
    s1 = [];
    if (peg$r0.test(input.charAt(peg$currPos))) {
      s2 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s2 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e20); }
    }
    if (s2 !== peg$FAILED) {
      while (s2 !== peg$FAILED) {
        s1.push(s2);
        if (peg$r0.test(input.charAt(peg$currPos))) {
          s2 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e20); }
        }
      }
    } else {
      s1 = peg$FAILED;
    }
    if (s1 !== peg$FAILED) {
      peg$savedPos = s0;
      s1 = peg$f15();
    }
    s0 = s1;
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e19); }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = peg$currPos;
    s1 = peg$parse_();
    s2 = peg$parseNumber();
    if (s2 !== peg$FAILED) {
      peg$savedPos = s0;
      s0 = peg$f16();
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e21); }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = peg$currPos;
    s1 = peg$parse_();
    s2 = peg$parseNumber();
    if (s2 !== peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 105) {
        s3 = peg$c19;
        peg$currPos++;
      } else {
        s3 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e23); }
      }
      if (s3 !== peg$FAILED) {
        peg$savedPos = s0;
        s0 = peg$f17();
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
    } else {
      peg$currPos = s0;
      s0 = peg$FAILED;
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e22); }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = peg$currPos;
    if (peg$r1.test(input.charAt(peg$currPos))) {
      s1 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e25); }
    }
    if (s1 === peg$FAILED) {
      s1 = null;
    }
    s2 = peg$parseDigits();
    if (s2 !== peg$FAILED) {
      if (input.charCodeAt(peg$currPos) === 46) {
        s3 = peg$c20;
        peg$currPos++;
      } else {
        s3 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e26); }
      }
      if (s3 !== peg$FAILED) {
        s4 = peg$parseDigits();
        if (s4 !== peg$FAILED) {
          s1 = [s1, s2, s3, s4];
          s0 = s1;
        } else {
          peg$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$currPos;
      if (peg$r1.test(input.charAt(peg$currPos))) {
        s1 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e25); }
      }
      if (s1 === peg$FAILED) {
        s1 = null;
      }
      s2 = peg$parseDigits();
      if (s2 !== peg$FAILED) {
        if (input.charCodeAt(peg$currPos) === 46) {
          s3 = peg$c20;
          peg$currPos++;
        } else {
          s3 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e26); }
        }
        if (s3 !== peg$FAILED) {
          s1 = [s1, s2, s3];
          s0 = s1;
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
      } else {
        peg$currPos = s0;
        s0 = peg$FAILED;
      }
      if (s0 === peg$FAILED) {
        s0 = peg$currPos;
        if (peg$r1.test(input.charAt(peg$currPos))) {
          s1 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e25); }
        }
        if (s1 === peg$FAILED) {
          s1 = null;
        }
        if (input.charCodeAt(peg$currPos) === 46) {
          s2 = peg$c20;
          peg$currPos++;
        } else {
          s2 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e26); }
        }
        if (s2 !== peg$FAILED) {
          s3 = peg$parseDigits();
          if (s3 !== peg$FAILED) {
            s1 = [s1, s2, s3];
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        } else {
          peg$currPos = s0;
          s0 = peg$FAILED;
        }
        if (s0 === peg$FAILED) {
          s0 = peg$currPos;
          if (peg$r1.test(input.charAt(peg$currPos))) {
            s1 = input.charAt(peg$currPos);
            peg$currPos++;
          } else {
            s1 = peg$FAILED;
            if (peg$silentFails === 0) { peg$fail(peg$e25); }
          }
          if (s1 === peg$FAILED) {
            s1 = null;
          }
          s2 = peg$parseDigits();
          if (s2 !== peg$FAILED) {
            s1 = [s1, s2];
            s0 = s1;
          } else {
            peg$currPos = s0;
            s0 = peg$FAILED;
          }
        }
      }
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e24); }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = [];
    if (peg$r2.test(input.charAt(peg$currPos))) {
      s1 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e28); }
    }
    if (s1 !== peg$FAILED) {
      while (s1 !== peg$FAILED) {
        s0.push(s1);
        if (peg$r2.test(input.charAt(peg$currPos))) {
          s1 = input.charAt(peg$currPos);
          peg$currPos++;
        } else {
          s1 = peg$FAILED;
          if (peg$silentFails === 0) { peg$fail(peg$e28); }
        }
      }
    } else {
      s0 = peg$FAILED;
    }
    peg$silentFails--;
    if (s0 === peg$FAILED) {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e27); }
    }

    return s0;
  }

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

    peg$silentFails++;
    s0 = [];
    if (peg$r3.test(input.charAt(peg$currPos))) {
      s1 = input.charAt(peg$currPos);
      peg$currPos++;
    } else {
      s1 = peg$FAILED;
      if (peg$silentFails === 0) { peg$fail(peg$e30); }
    }
    while (s1 !== peg$FAILED) {
      s0.push(s1);
      if (peg$r3.test(input.charAt(peg$currPos))) {
        s1 = input.charAt(peg$currPos);
        peg$currPos++;
      } else {
        s1 = peg$FAILED;
        if (peg$silentFails === 0) { peg$fail(peg$e30); }
      }
    }
    peg$silentFails--;
    s1 = peg$FAILED;
    if (peg$silentFails === 0) { peg$fail(peg$e29); }

    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(peg$endExpectation());
    }

    throw peg$buildStructuredError(
      peg$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)
    );
  }
}

module.exports = {
  SyntaxError: peg$SyntaxError,
  parse: peg$parse
};