/* jshint ignore:start */

// PhantomJS doesn't have support for Function.prototype.bind, which has caused confusion. Use
// this polyfill to avoid the confusion.
// https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Function/bind#Polyfill

if (!Function.prototype.bind) {
  Function.prototype.bind = function(oThis) {
    if (typeof this !== 'function') {
      // closest thing possible to the ECMAScript 5
      // internal IsCallable function
      throw new TypeError('Function.prototype.bind - what is trying to be bound is not callable');
    }

    var aArgs   = Array.prototype.slice.call(arguments, 1),
        fToBind = this,
        fNOP    = function() {},
        fBound  = function() {
          return fToBind.apply(this instanceof fNOP ? this : oThis, aArgs.concat(Array.prototype.slice.call(arguments)));
        };

    fNOP.prototype = this.prototype;
    fBound.prototype = new fNOP();

    return fBound;
  };
}

//SVGPathSeg API polyfill
//https://github.com/progers/pathseg
//
//This is a drop-in replacement for the SVGPathSeg and SVGPathSegList APIs that were removed from
//SVG2 (https://lists.w3.org/Archives/Public/www-svg/2015Jun/0044.html), including the latest spec
//changes which were implemented in Firefox 43 and Chrome 46.
//Chrome 48 removes these APIs, so this polyfill is required.

(function() { "use strict";
 if (!("SVGPathSeg" in window)) {
     // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSeg
     window.SVGPathSeg = function(type, typeAsLetter, owningPathSegList) {
         this.pathSegType = type;
         this.pathSegTypeAsLetter = typeAsLetter;
         this._owningPathSegList = owningPathSegList;
     }

     SVGPathSeg.PATHSEG_UNKNOWN = 0;
     SVGPathSeg.PATHSEG_CLOSEPATH = 1;
     SVGPathSeg.PATHSEG_MOVETO_ABS = 2;
     SVGPathSeg.PATHSEG_MOVETO_REL = 3;
     SVGPathSeg.PATHSEG_LINETO_ABS = 4;
     SVGPathSeg.PATHSEG_LINETO_REL = 5;
     SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS = 6;
     SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL = 7;
     SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS = 8;
     SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL = 9;
     SVGPathSeg.PATHSEG_ARC_ABS = 10;
     SVGPathSeg.PATHSEG_ARC_REL = 11;
     SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS = 12;
     SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL = 13;
     SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS = 14;
     SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL = 15;
     SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS = 16;
     SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL = 17;
     SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS = 18;
     SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL = 19;

     // Notify owning PathSegList on any changes so they can be synchronized back to the path element.
     SVGPathSeg.prototype._segmentChanged = function() {
         if (this._owningPathSegList)
             this._owningPathSegList.segmentChanged(this);
     }

     window.SVGPathSegClosePath = function(owningPathSegList) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CLOSEPATH, "z", owningPathSegList);
     }
     SVGPathSegClosePath.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegClosePath.prototype.toString = function() { return "[object SVGPathSegClosePath]"; }
     SVGPathSegClosePath.prototype._asPathString = function() { return this.pathSegTypeAsLetter; }
     SVGPathSegClosePath.prototype.clone = function() { return new SVGPathSegClosePath(undefined); }

     window.SVGPathSegMovetoAbs = function(owningPathSegList, x, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_MOVETO_ABS, "M", owningPathSegList);
         this._x = x;
         this._y = y;
     }
     SVGPathSegMovetoAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegMovetoAbs.prototype.toString = function() { return "[object SVGPathSegMovetoAbs]"; }
     SVGPathSegMovetoAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
     SVGPathSegMovetoAbs.prototype.clone = function() { return new SVGPathSegMovetoAbs(undefined, this._x, this._y); }
     Object.defineProperty(SVGPathSegMovetoAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegMovetoAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegMovetoRel = function(owningPathSegList, x, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_MOVETO_REL, "m", owningPathSegList);
         this._x = x;
         this._y = y;
     }
     SVGPathSegMovetoRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegMovetoRel.prototype.toString = function() { return "[object SVGPathSegMovetoRel]"; }
     SVGPathSegMovetoRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
     SVGPathSegMovetoRel.prototype.clone = function() { return new SVGPathSegMovetoRel(undefined, this._x, this._y); }
     Object.defineProperty(SVGPathSegMovetoRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegMovetoRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegLinetoAbs = function(owningPathSegList, x, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_LINETO_ABS, "L", owningPathSegList);
         this._x = x;
         this._y = y;
     }
     SVGPathSegLinetoAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegLinetoAbs.prototype.toString = function() { return "[object SVGPathSegLinetoAbs]"; }
     SVGPathSegLinetoAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
     SVGPathSegLinetoAbs.prototype.clone = function() { return new SVGPathSegLinetoAbs(undefined, this._x, this._y); }
     Object.defineProperty(SVGPathSegLinetoAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegLinetoAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegLinetoRel = function(owningPathSegList, x, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_LINETO_REL, "l", owningPathSegList);
         this._x = x;
         this._y = y;
     }
     SVGPathSegLinetoRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegLinetoRel.prototype.toString = function() { return "[object SVGPathSegLinetoRel]"; }
     SVGPathSegLinetoRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
     SVGPathSegLinetoRel.prototype.clone = function() { return new SVGPathSegLinetoRel(undefined, this._x, this._y); }
     Object.defineProperty(SVGPathSegLinetoRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegLinetoRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoCubicAbs = function(owningPathSegList, x, y, x1, y1, x2, y2) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS, "C", owningPathSegList);
         this._x = x;
         this._y = y;
         this._x1 = x1;
         this._y1 = y1;
         this._x2 = x2;
         this._y2 = y2;
     }
     SVGPathSegCurvetoCubicAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoCubicAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicAbs]"; }
     SVGPathSegCurvetoCubicAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoCubicAbs.prototype.clone = function() { return new SVGPathSegCurvetoCubicAbs(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2); }
     Object.defineProperty(SVGPathSegCurvetoCubicAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicAbs.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicAbs.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicAbs.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicAbs.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoCubicRel = function(owningPathSegList, x, y, x1, y1, x2, y2) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL, "c", owningPathSegList);
         this._x = x;
         this._y = y;
         this._x1 = x1;
         this._y1 = y1;
         this._x2 = x2;
         this._y2 = y2;
     }
     SVGPathSegCurvetoCubicRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoCubicRel.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicRel]"; }
     SVGPathSegCurvetoCubicRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoCubicRel.prototype.clone = function() { return new SVGPathSegCurvetoCubicRel(undefined, this._x, this._y, this._x1, this._y1, this._x2, this._y2); }
     Object.defineProperty(SVGPathSegCurvetoCubicRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicRel.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicRel.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicRel.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicRel.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoQuadraticAbs = function(owningPathSegList, x, y, x1, y1) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS, "Q", owningPathSegList);
         this._x = x;
         this._y = y;
         this._x1 = x1;
         this._y1 = y1;
     }
     SVGPathSegCurvetoQuadraticAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoQuadraticAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticAbs]"; }
     SVGPathSegCurvetoQuadraticAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoQuadraticAbs.prototype.clone = function() { return new SVGPathSegCurvetoQuadraticAbs(undefined, this._x, this._y, this._x1, this._y1); }
     Object.defineProperty(SVGPathSegCurvetoQuadraticAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticAbs.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticAbs.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoQuadraticRel = function(owningPathSegList, x, y, x1, y1) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL, "q", owningPathSegList);
         this._x = x;
         this._y = y;
         this._x1 = x1;
         this._y1 = y1;
     }
     SVGPathSegCurvetoQuadraticRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoQuadraticRel.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticRel]"; }
     SVGPathSegCurvetoQuadraticRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x1 + " " + this._y1 + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoQuadraticRel.prototype.clone = function() { return new SVGPathSegCurvetoQuadraticRel(undefined, this._x, this._y, this._x1, this._y1); }
     Object.defineProperty(SVGPathSegCurvetoQuadraticRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticRel.prototype, "x1", { get: function() { return this._x1; }, set: function(x1) { this._x1 = x1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticRel.prototype, "y1", { get: function() { return this._y1; }, set: function(y1) { this._y1 = y1; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegArcAbs = function(owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_ARC_ABS, "A", owningPathSegList);
         this._x = x;
         this._y = y;
         this._r1 = r1;
         this._r2 = r2;
         this._angle = angle;
         this._largeArcFlag = largeArcFlag;
         this._sweepFlag = sweepFlag;
     }
     SVGPathSegArcAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegArcAbs.prototype.toString = function() { return "[object SVGPathSegArcAbs]"; }
     SVGPathSegArcAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._r1 + " " + this._r2 + " " + this._angle + " " + (this._largeArcFlag ? "1" : "0") + " " + (this._sweepFlag ? "1" : "0") + " " + this._x + " " + this._y; }
     SVGPathSegArcAbs.prototype.clone = function() { return new SVGPathSegArcAbs(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag); }
     Object.defineProperty(SVGPathSegArcAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcAbs.prototype, "r1", { get: function() { return this._r1; }, set: function(r1) { this._r1 = r1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcAbs.prototype, "r2", { get: function() { return this._r2; }, set: function(r2) { this._r2 = r2; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcAbs.prototype, "angle", { get: function() { return this._angle; }, set: function(angle) { this._angle = angle; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcAbs.prototype, "largeArcFlag", { get: function() { return this._largeArcFlag; }, set: function(largeArcFlag) { this._largeArcFlag = largeArcFlag; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcAbs.prototype, "sweepFlag", { get: function() { return this._sweepFlag; }, set: function(sweepFlag) { this._sweepFlag = sweepFlag; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegArcRel = function(owningPathSegList, x, y, r1, r2, angle, largeArcFlag, sweepFlag) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_ARC_REL, "a", owningPathSegList);
         this._x = x;
         this._y = y;
         this._r1 = r1;
         this._r2 = r2;
         this._angle = angle;
         this._largeArcFlag = largeArcFlag;
         this._sweepFlag = sweepFlag;
     }
     SVGPathSegArcRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegArcRel.prototype.toString = function() { return "[object SVGPathSegArcRel]"; }
     SVGPathSegArcRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._r1 + " " + this._r2 + " " + this._angle + " " + (this._largeArcFlag ? "1" : "0") + " " + (this._sweepFlag ? "1" : "0") + " " + this._x + " " + this._y; }
     SVGPathSegArcRel.prototype.clone = function() { return new SVGPathSegArcRel(undefined, this._x, this._y, this._r1, this._r2, this._angle, this._largeArcFlag, this._sweepFlag); }
     Object.defineProperty(SVGPathSegArcRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcRel.prototype, "r1", { get: function() { return this._r1; }, set: function(r1) { this._r1 = r1; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcRel.prototype, "r2", { get: function() { return this._r2; }, set: function(r2) { this._r2 = r2; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcRel.prototype, "angle", { get: function() { return this._angle; }, set: function(angle) { this._angle = angle; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcRel.prototype, "largeArcFlag", { get: function() { return this._largeArcFlag; }, set: function(largeArcFlag) { this._largeArcFlag = largeArcFlag; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegArcRel.prototype, "sweepFlag", { get: function() { return this._sweepFlag; }, set: function(sweepFlag) { this._sweepFlag = sweepFlag; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegLinetoHorizontalAbs = function(owningPathSegList, x) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS, "H", owningPathSegList);
         this._x = x;
     }
     SVGPathSegLinetoHorizontalAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegLinetoHorizontalAbs.prototype.toString = function() { return "[object SVGPathSegLinetoHorizontalAbs]"; }
     SVGPathSegLinetoHorizontalAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x; }
     SVGPathSegLinetoHorizontalAbs.prototype.clone = function() { return new SVGPathSegLinetoHorizontalAbs(undefined, this._x); }
     Object.defineProperty(SVGPathSegLinetoHorizontalAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegLinetoHorizontalRel = function(owningPathSegList, x) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL, "h", owningPathSegList);
         this._x = x;
     }
     SVGPathSegLinetoHorizontalRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegLinetoHorizontalRel.prototype.toString = function() { return "[object SVGPathSegLinetoHorizontalRel]"; }
     SVGPathSegLinetoHorizontalRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x; }
     SVGPathSegLinetoHorizontalRel.prototype.clone = function() { return new SVGPathSegLinetoHorizontalRel(undefined, this._x); }
     Object.defineProperty(SVGPathSegLinetoHorizontalRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegLinetoVerticalAbs = function(owningPathSegList, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS, "V", owningPathSegList);
         this._y = y;
     }
     SVGPathSegLinetoVerticalAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegLinetoVerticalAbs.prototype.toString = function() { return "[object SVGPathSegLinetoVerticalAbs]"; }
     SVGPathSegLinetoVerticalAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._y; }
     SVGPathSegLinetoVerticalAbs.prototype.clone = function() { return new SVGPathSegLinetoVerticalAbs(undefined, this._y); }
     Object.defineProperty(SVGPathSegLinetoVerticalAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegLinetoVerticalRel = function(owningPathSegList, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL, "v", owningPathSegList);
         this._y = y;
     }
     SVGPathSegLinetoVerticalRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegLinetoVerticalRel.prototype.toString = function() { return "[object SVGPathSegLinetoVerticalRel]"; }
     SVGPathSegLinetoVerticalRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._y; }
     SVGPathSegLinetoVerticalRel.prototype.clone = function() { return new SVGPathSegLinetoVerticalRel(undefined, this._y); }
     Object.defineProperty(SVGPathSegLinetoVerticalRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoCubicSmoothAbs = function(owningPathSegList, x, y, x2, y2) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS, "S", owningPathSegList);
         this._x = x;
         this._y = y;
         this._x2 = x2;
         this._y2 = y2;
     }
     SVGPathSegCurvetoCubicSmoothAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoCubicSmoothAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicSmoothAbs]"; }
     SVGPathSegCurvetoCubicSmoothAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoCubicSmoothAbs.prototype.clone = function() { return new SVGPathSegCurvetoCubicSmoothAbs(undefined, this._x, this._y, this._x2, this._y2); }
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothAbs.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothAbs.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoCubicSmoothRel = function(owningPathSegList, x, y, x2, y2) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL, "s", owningPathSegList);
         this._x = x;
         this._y = y;
         this._x2 = x2;
         this._y2 = y2;
     }
     SVGPathSegCurvetoCubicSmoothRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoCubicSmoothRel.prototype.toString = function() { return "[object SVGPathSegCurvetoCubicSmoothRel]"; }
     SVGPathSegCurvetoCubicSmoothRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x2 + " " + this._y2 + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoCubicSmoothRel.prototype.clone = function() { return new SVGPathSegCurvetoCubicSmoothRel(undefined, this._x, this._y, this._x2, this._y2); }
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothRel.prototype, "x2", { get: function() { return this._x2; }, set: function(x2) { this._x2 = x2; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoCubicSmoothRel.prototype, "y2", { get: function() { return this._y2; }, set: function(y2) { this._y2 = y2; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoQuadraticSmoothAbs = function(owningPathSegList, x, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS, "T", owningPathSegList);
         this._x = x;
         this._y = y;
     }
     SVGPathSegCurvetoQuadraticSmoothAbs.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoQuadraticSmoothAbs.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticSmoothAbs]"; }
     SVGPathSegCurvetoQuadraticSmoothAbs.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoQuadraticSmoothAbs.prototype.clone = function() { return new SVGPathSegCurvetoQuadraticSmoothAbs(undefined, this._x, this._y); }
     Object.defineProperty(SVGPathSegCurvetoQuadraticSmoothAbs.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticSmoothAbs.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     window.SVGPathSegCurvetoQuadraticSmoothRel = function(owningPathSegList, x, y) {
         SVGPathSeg.call(this, SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL, "t", owningPathSegList);
         this._x = x;
         this._y = y;
     }
     SVGPathSegCurvetoQuadraticSmoothRel.prototype = Object.create(SVGPathSeg.prototype);
     SVGPathSegCurvetoQuadraticSmoothRel.prototype.toString = function() { return "[object SVGPathSegCurvetoQuadraticSmoothRel]"; }
     SVGPathSegCurvetoQuadraticSmoothRel.prototype._asPathString = function() { return this.pathSegTypeAsLetter + " " + this._x + " " + this._y; }
     SVGPathSegCurvetoQuadraticSmoothRel.prototype.clone = function() { return new SVGPathSegCurvetoQuadraticSmoothRel(undefined, this._x, this._y); }
     Object.defineProperty(SVGPathSegCurvetoQuadraticSmoothRel.prototype, "x", { get: function() { return this._x; }, set: function(x) { this._x = x; this._segmentChanged(); }, enumerable: true });
     Object.defineProperty(SVGPathSegCurvetoQuadraticSmoothRel.prototype, "y", { get: function() { return this._y; }, set: function(y) { this._y = y; this._segmentChanged(); }, enumerable: true });

     // Add createSVGPathSeg* functions to SVGPathElement.
     // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathElement.
     SVGPathElement.prototype.createSVGPathSegClosePath = function() { return new SVGPathSegClosePath(undefined); }
     SVGPathElement.prototype.createSVGPathSegMovetoAbs = function(x, y) { return new SVGPathSegMovetoAbs(undefined, x, y); }
     SVGPathElement.prototype.createSVGPathSegMovetoRel = function(x, y) { return new SVGPathSegMovetoRel(undefined, x, y); }
     SVGPathElement.prototype.createSVGPathSegLinetoAbs = function(x, y) { return new SVGPathSegLinetoAbs(undefined, x, y); }
     SVGPathElement.prototype.createSVGPathSegLinetoRel = function(x, y) { return new SVGPathSegLinetoRel(undefined, x, y); }
     SVGPathElement.prototype.createSVGPathSegCurvetoCubicAbs = function(x, y, x1, y1, x2, y2) { return new SVGPathSegCurvetoCubicAbs(undefined, x, y, x1, y1, x2, y2); }
     SVGPathElement.prototype.createSVGPathSegCurvetoCubicRel = function(x, y, x1, y1, x2, y2) { return new SVGPathSegCurvetoCubicRel(undefined, x, y, x1, y1, x2, y2); }
     SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticAbs = function(x, y, x1, y1) { return new SVGPathSegCurvetoQuadraticAbs(undefined, x, y, x1, y1); }
     SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticRel = function(x, y, x1, y1) { return new SVGPathSegCurvetoQuadraticRel(undefined, x, y, x1, y1); }
     SVGPathElement.prototype.createSVGPathSegArcAbs = function(x, y, r1, r2, angle, largeArcFlag, sweepFlag) { return new SVGPathSegArcAbs(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag); }
     SVGPathElement.prototype.createSVGPathSegArcRel = function(x, y, r1, r2, angle, largeArcFlag, sweepFlag) { return new SVGPathSegArcRel(undefined, x, y, r1, r2, angle, largeArcFlag, sweepFlag); }
     SVGPathElement.prototype.createSVGPathSegLinetoHorizontalAbs = function(x) { return new SVGPathSegLinetoHorizontalAbs(undefined, x); }
     SVGPathElement.prototype.createSVGPathSegLinetoHorizontalRel = function(x) { return new SVGPathSegLinetoHorizontalRel(undefined, x); }
     SVGPathElement.prototype.createSVGPathSegLinetoVerticalAbs = function(y) { return new SVGPathSegLinetoVerticalAbs(undefined, y); }
     SVGPathElement.prototype.createSVGPathSegLinetoVerticalRel = function(y) { return new SVGPathSegLinetoVerticalRel(undefined, y); }
     SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothAbs = function(x, y, x2, y2) { return new SVGPathSegCurvetoCubicSmoothAbs(undefined, x, y, x2, y2); }
     SVGPathElement.prototype.createSVGPathSegCurvetoCubicSmoothRel = function(x, y, x2, y2) { return new SVGPathSegCurvetoCubicSmoothRel(undefined, x, y, x2, y2); }
     SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothAbs = function(x, y) { return new SVGPathSegCurvetoQuadraticSmoothAbs(undefined, x, y); }
     SVGPathElement.prototype.createSVGPathSegCurvetoQuadraticSmoothRel = function(x, y) { return new SVGPathSegCurvetoQuadraticSmoothRel(undefined, x, y); }
 }

 if (!("SVGPathSegList" in window)) {
     // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGPathSegList
     window.SVGPathSegList = function(pathElement) {
         this._pathElement = pathElement;
         this._list = this._parsePath(this._pathElement.getAttribute("d"));

         // Use a MutationObserver to catch changes to the path's "d" attribute.
         this._mutationObserverConfig = { "attributes": true, "attributeFilter": ["d"] };
         this._pathElementMutationObserver = new MutationObserver(this._updateListFromPathMutations.bind(this));
         this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
     }

     Object.defineProperty(SVGPathSegList.prototype, "numberOfItems", {
         get: function() {
             this._checkPathSynchronizedToList();
             return this._list.length;
         },
         enumerable: true
     });

     // Add the pathSegList accessors to SVGPathElement.
     // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-InterfaceSVGAnimatedPathData
     Object.defineProperty(SVGPathElement.prototype, "pathSegList", {
         get: function() {
             if (!this._pathSegList)
                 this._pathSegList = new SVGPathSegList(this);
             return this._pathSegList;
         },
         enumerable: true
     });
     // FIXME: The following are not implemented and simply return SVGPathElement.pathSegList.
     Object.defineProperty(SVGPathElement.prototype, "normalizedPathSegList", { get: function() { return this.pathSegList; }, enumerable: true });
     Object.defineProperty(SVGPathElement.prototype, "animatedPathSegList", { get: function() { return this.pathSegList; }, enumerable: true });
     Object.defineProperty(SVGPathElement.prototype, "animatedNormalizedPathSegList", { get: function() { return this.pathSegList; }, enumerable: true });

     // Process any pending mutations to the path element and update the list as needed.
     // This should be the first call of all public functions and is needed because
     // MutationObservers are not synchronous so we can have pending asynchronous mutations.
     SVGPathSegList.prototype._checkPathSynchronizedToList = function() {
         this._updateListFromPathMutations(this._pathElementMutationObserver.takeRecords());
     }

     SVGPathSegList.prototype._updateListFromPathMutations = function(mutationRecords) {
         if (!this._pathElement)
             return;
         var hasPathMutations = false;
         mutationRecords.forEach(function(record) {
             if (record.attributeName == "d")
                 hasPathMutations = true;
         });
         if (hasPathMutations)
             this._list = this._parsePath(this._pathElement.getAttribute("d"));
     }

     // Serialize the list and update the path's 'd' attribute.
     SVGPathSegList.prototype._writeListToPath = function() {
         this._pathElementMutationObserver.disconnect();
         this._pathElement.setAttribute("d", SVGPathSegList._pathSegArrayAsString(this._list));
         this._pathElementMutationObserver.observe(this._pathElement, this._mutationObserverConfig);
     }

     // When a path segment changes the list needs to be synchronized back to the path element.
     SVGPathSegList.prototype.segmentChanged = function(pathSeg) {
         this._writeListToPath();
     }

     SVGPathSegList.prototype.clear = function() {
         this._checkPathSynchronizedToList();

         this._list.forEach(function(pathSeg) {
             pathSeg._owningPathSegList = null;
         });
         this._list = [];
         this._writeListToPath();
     }

     SVGPathSegList.prototype.initialize = function(newItem) {
         this._checkPathSynchronizedToList();

         this._list = [newItem];
         newItem._owningPathSegList = this;
         this._writeListToPath();
         return newItem;
     }

     SVGPathSegList.prototype._checkValidIndex = function(index) {
         if (isNaN(index) || index < 0 || index >= this.numberOfItems)
             throw "INDEX_SIZE_ERR";
     }

     SVGPathSegList.prototype.getItem = function(index) {
         this._checkPathSynchronizedToList();

         this._checkValidIndex(index);
         return this._list[index];
     }

     SVGPathSegList.prototype.insertItemBefore = function(newItem, index) {
         this._checkPathSynchronizedToList();

         // Spec: If the index is greater than or equal to numberOfItems, then the new item is appended to the end of the list.
         if (index > this.numberOfItems)
             index = this.numberOfItems;
         if (newItem._owningPathSegList) {
             // SVG2 spec says to make a copy.
             newItem = newItem.clone();
         }
         this._list.splice(index, 0, newItem);
         newItem._owningPathSegList = this;
         this._writeListToPath();
         return newItem;
     }

     SVGPathSegList.prototype.replaceItem = function(newItem, index) {
         this._checkPathSynchronizedToList();

         if (newItem._owningPathSegList) {
             // SVG2 spec says to make a copy.
             newItem = newItem.clone();
         }
         this._checkValidIndex(index);
         this._list[index] = newItem;
         newItem._owningPathSegList = this;
         this._writeListToPath();
         return newItem;
     }

     SVGPathSegList.prototype.removeItem = function(index) {
         this._checkPathSynchronizedToList();

         this._checkValidIndex(index);
         var item = this._list[index];
         this._list.splice(index, 1);
         this._writeListToPath();
         return item;
     }

     SVGPathSegList.prototype.appendItem = function(newItem) {
         this._checkPathSynchronizedToList();

         if (newItem._owningPathSegList) {
             // SVG2 spec says to make a copy.
             newItem = newItem.clone();
         }
         this._list.push(newItem);
         newItem._owningPathSegList = this;
         // TODO: Optimize this to just append to the existing attribute.
         this._writeListToPath();
         return newItem;
     }

     SVGPathSegList._pathSegArrayAsString = function(pathSegArray) {
         var string = "";
         var first = true;
         pathSegArray.forEach(function(pathSeg) {
             if (first) {
                 first = false;
                 string += pathSeg._asPathString();
             } else {
                 string += " " + pathSeg._asPathString();
             }
         });
         return string;
     }

     // This closely follows SVGPathParser::parsePath from Source/core/svg/SVGPathParser.cpp.
     SVGPathSegList.prototype._parsePath = function(string) {
         if (!string || string.length == 0)
             return [];

         var owningPathSegList = this;

         var Builder = function() {
             this.pathSegList = [];
         }

         Builder.prototype.appendSegment = function(pathSeg) {
             this.pathSegList.push(pathSeg);
         }

         var Source = function(string) {
             this._string = string;
             this._currentIndex = 0;
             this._endIndex = this._string.length;
             this._previousCommand = SVGPathSeg.PATHSEG_UNKNOWN;

             this._skipOptionalSpaces();
         }

         Source.prototype._isCurrentSpace = function() {
             var character = this._string[this._currentIndex];
             return character <= " " && (character == " " || character == "\n" || character == "\t" || character == "\r" || character == "\f");
         }

         Source.prototype._skipOptionalSpaces = function() {
             while (this._currentIndex < this._endIndex && this._isCurrentSpace())
                 this._currentIndex++;
             return this._currentIndex < this._endIndex;
         }

         Source.prototype._skipOptionalSpacesOrDelimiter = function() {
             if (this._currentIndex < this._endIndex && !this._isCurrentSpace() && this._string.charAt(this._currentIndex) != ",")
                 return false;
             if (this._skipOptionalSpaces()) {
                 if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == ",") {
                     this._currentIndex++;
                     this._skipOptionalSpaces();
                 }
             }
             return this._currentIndex < this._endIndex;
         }

         Source.prototype.hasMoreData = function() {
             return this._currentIndex < this._endIndex;
         }

         Source.prototype.peekSegmentType = function() {
             var lookahead = this._string[this._currentIndex];
             return this._pathSegTypeFromChar(lookahead);
         }

         Source.prototype._pathSegTypeFromChar = function(lookahead) {
             switch (lookahead) {
             case "Z":
             case "z":
                 return SVGPathSeg.PATHSEG_CLOSEPATH;
             case "M":
                 return SVGPathSeg.PATHSEG_MOVETO_ABS;
             case "m":
                 return SVGPathSeg.PATHSEG_MOVETO_REL;
             case "L":
                 return SVGPathSeg.PATHSEG_LINETO_ABS;
             case "l":
                 return SVGPathSeg.PATHSEG_LINETO_REL;
             case "C":
                 return SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS;
             case "c":
                 return SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL;
             case "Q":
                 return SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS;
             case "q":
                 return SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL;
             case "A":
                 return SVGPathSeg.PATHSEG_ARC_ABS;
             case "a":
                 return SVGPathSeg.PATHSEG_ARC_REL;
             case "H":
                 return SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS;
             case "h":
                 return SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL;
             case "V":
                 return SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS;
             case "v":
                 return SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL;
             case "S":
                 return SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS;
             case "s":
                 return SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL;
             case "T":
                 return SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS;
             case "t":
                 return SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL;
             default:
                 return SVGPathSeg.PATHSEG_UNKNOWN;
             }
         }

         Source.prototype._nextCommandHelper = function(lookahead, previousCommand) {
             // Check for remaining coordinates in the current command.
             if ((lookahead == "+" || lookahead == "-" || lookahead == "." || (lookahead >= "0" && lookahead <= "9")) && previousCommand != SVGPathSeg.PATHSEG_CLOSEPATH) {
                 if (previousCommand == SVGPathSeg.PATHSEG_MOVETO_ABS)
                     return SVGPathSeg.PATHSEG_LINETO_ABS;
                 if (previousCommand == SVGPathSeg.PATHSEG_MOVETO_REL)
                     return SVGPathSeg.PATHSEG_LINETO_REL;
                 return previousCommand;
             }
             return SVGPathSeg.PATHSEG_UNKNOWN;
         }

         Source.prototype.initialCommandIsMoveTo = function() {
             // If the path is empty it is still valid, so return true.
             if (!this.hasMoreData())
                 return true;
             var command = this.peekSegmentType();
             // Path must start with moveTo.
             return command == SVGPathSeg.PATHSEG_MOVETO_ABS || command == SVGPathSeg.PATHSEG_MOVETO_REL;
         }

         // Parse a number from an SVG path. This very closely follows genericParseNumber(...) from Source/core/svg/SVGParserUtilities.cpp.
         // Spec: http://www.w3.org/TR/SVG11/single-page.html#paths-PathDataBNF
         Source.prototype._parseNumber = function() {
             var exponent = 0;
             var integer = 0;
             var frac = 1;
             var decimal = 0;
             var sign = 1;
             var expsign = 1;

             var startIndex = this._currentIndex;

             this._skipOptionalSpaces();

             // Read the sign.
             if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == "+")
                 this._currentIndex++;
             else if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == "-") {
                 this._currentIndex++;
                 sign = -1;
             }

             if (this._currentIndex == this._endIndex || ((this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9") && this._string.charAt(this._currentIndex) != "."))
                 // The first character of a number must be one of [0-9+-.].
                 return undefined;

             // Read the integer part, build right-to-left.
             var startIntPartIndex = this._currentIndex;
             while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9")
                 this._currentIndex++; // Advance to first non-digit.

             if (this._currentIndex != startIntPartIndex) {
                 var scanIntPartIndex = this._currentIndex - 1;
                 var multiplier = 1;
                 while (scanIntPartIndex >= startIntPartIndex) {
                     integer += multiplier * (this._string.charAt(scanIntPartIndex--) - "0");
                     multiplier *= 10;
                 }
             }

             // Read the decimals.
             if (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) == ".") {
                 this._currentIndex++;

                 // There must be a least one digit following the .
                 if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9")
                     return undefined;
                 while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9")
                     decimal += (this._string.charAt(this._currentIndex++) - "0") * (frac *= 0.1);
             }

             // Read the exponent part.
             if (this._currentIndex != startIndex && this._currentIndex + 1 < this._endIndex && (this._string.charAt(this._currentIndex) == "e" || this._string.charAt(this._currentIndex) == "E") && (this._string.charAt(this._currentIndex + 1) != "x" && this._string.charAt(this._currentIndex + 1) != "m")) {
                 this._currentIndex++;

                 // Read the sign of the exponent.
                 if (this._string.charAt(this._currentIndex) == "+") {
                     this._currentIndex++;
                 } else if (this._string.charAt(this._currentIndex) == "-") {
                     this._currentIndex++;
                     expsign = -1;
                 }

                 // There must be an exponent.
                 if (this._currentIndex >= this._endIndex || this._string.charAt(this._currentIndex) < "0" || this._string.charAt(this._currentIndex) > "9")
                     return undefined;

                 while (this._currentIndex < this._endIndex && this._string.charAt(this._currentIndex) >= "0" && this._string.charAt(this._currentIndex) <= "9") {
                     exponent *= 10;
                     exponent += (this._string.charAt(this._currentIndex) - "0");
                     this._currentIndex++;
                 }
             }

             var number = integer + decimal;
             number *= sign;

             if (exponent)
                 number *= Math.pow(10, expsign * exponent);

             if (startIndex == this._currentIndex)
                 return undefined;

             this._skipOptionalSpacesOrDelimiter();

             return number;
         }

         Source.prototype._parseArcFlag = function() {
             if (this._currentIndex >= this._endIndex)
                 return undefined;
             var flag = false;
             var flagChar = this._string.charAt(this._currentIndex++);
             if (flagChar == "0")
                 flag = false;
             else if (flagChar == "1")
                 flag = true;
             else
                 return undefined;

             this._skipOptionalSpacesOrDelimiter();
             return flag;
         }

         Source.prototype.parseSegment = function() {
             var lookahead = this._string[this._currentIndex];
             var command = this._pathSegTypeFromChar(lookahead);
             if (command == SVGPathSeg.PATHSEG_UNKNOWN) {
                 // Possibly an implicit command. Not allowed if this is the first command.
                 if (this._previousCommand == SVGPathSeg.PATHSEG_UNKNOWN)
                     return null;
                 command = this._nextCommandHelper(lookahead, this._previousCommand);
                 if (command == SVGPathSeg.PATHSEG_UNKNOWN)
                     return null;
             } else {
                 this._currentIndex++;
             }

             this._previousCommand = command;

             switch (command) {
             case SVGPathSeg.PATHSEG_MOVETO_REL:
                 return new SVGPathSegMovetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
             case SVGPathSeg.PATHSEG_MOVETO_ABS:
                 return new SVGPathSegMovetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
             case SVGPathSeg.PATHSEG_LINETO_REL:
                 return new SVGPathSegLinetoRel(owningPathSegList, this._parseNumber(), this._parseNumber());
             case SVGPathSeg.PATHSEG_LINETO_ABS:
                 return new SVGPathSegLinetoAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
             case SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_REL:
                 return new SVGPathSegLinetoHorizontalRel(owningPathSegList, this._parseNumber());
             case SVGPathSeg.PATHSEG_LINETO_HORIZONTAL_ABS:
                 return new SVGPathSegLinetoHorizontalAbs(owningPathSegList, this._parseNumber());
             case SVGPathSeg.PATHSEG_LINETO_VERTICAL_REL:
                 return new SVGPathSegLinetoVerticalRel(owningPathSegList, this._parseNumber());
             case SVGPathSeg.PATHSEG_LINETO_VERTICAL_ABS:
                 return new SVGPathSegLinetoVerticalAbs(owningPathSegList, this._parseNumber());
             case SVGPathSeg.PATHSEG_CLOSEPATH:
                 this._skipOptionalSpaces();
                 return new SVGPathSegClosePath(owningPathSegList);
             case SVGPathSeg.PATHSEG_CURVETO_CUBIC_REL:
                 var points = {x1: this._parseNumber(), y1: this._parseNumber(), x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegCurvetoCubicRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
             case SVGPathSeg.PATHSEG_CURVETO_CUBIC_ABS:
                 var points = {x1: this._parseNumber(), y1: this._parseNumber(), x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegCurvetoCubicAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.x2, points.y2);
             case SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_REL:
                 var points = {x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegCurvetoCubicSmoothRel(owningPathSegList, points.x, points.y, points.x2, points.y2);
             case SVGPathSeg.PATHSEG_CURVETO_CUBIC_SMOOTH_ABS:
                 var points = {x2: this._parseNumber(), y2: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegCurvetoCubicSmoothAbs(owningPathSegList, points.x, points.y, points.x2, points.y2);
             case SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_REL:
                 var points = {x1: this._parseNumber(), y1: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegCurvetoQuadraticRel(owningPathSegList, points.x, points.y, points.x1, points.y1);
             case SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_ABS:
                 var points = {x1: this._parseNumber(), y1: this._parseNumber(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegCurvetoQuadraticAbs(owningPathSegList, points.x, points.y, points.x1, points.y1);
             case SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_REL:
                 return new SVGPathSegCurvetoQuadraticSmoothRel(owningPathSegList, this._parseNumber(), this._parseNumber());
             case SVGPathSeg.PATHSEG_CURVETO_QUADRATIC_SMOOTH_ABS:
                 return new SVGPathSegCurvetoQuadraticSmoothAbs(owningPathSegList, this._parseNumber(), this._parseNumber());
             case SVGPathSeg.PATHSEG_ARC_REL:
                 var points = {x1: this._parseNumber(), y1: this._parseNumber(), arcAngle: this._parseNumber(), arcLarge: this._parseArcFlag(), arcSweep: this._parseArcFlag(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegArcRel(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
             case SVGPathSeg.PATHSEG_ARC_ABS:
                 var points = {x1: this._parseNumber(), y1: this._parseNumber(), arcAngle: this._parseNumber(), arcLarge: this._parseArcFlag(), arcSweep: this._parseArcFlag(), x: this._parseNumber(), y: this._parseNumber()};
                 return new SVGPathSegArcAbs(owningPathSegList, points.x, points.y, points.x1, points.y1, points.arcAngle, points.arcLarge, points.arcSweep);
             default:
                 throw "Unknown path seg type."
             }
         }

         var builder = new Builder();
         var source = new Source(string);

         if (!source.initialCommandIsMoveTo())
             return [];
         while (source.hasMoreData()) {
             var pathSeg = source.parseSegment();
             if (!pathSeg)
                 return [];
             builder.appendSegment(pathSeg);
         }

         return builder.pathSegList;
     }
 }
}());

/* jshint ignore:end */
