CocoRoboDesktop/pdf1.js/node_modules/uri-js/dist/es5/uri.all.js

/** @license URI.js v4.2.1 (c) 2011 Gary Court. License: http://github.com/garycourt/uri-js */
(function (global, factory) {
	typeof exports === 'object' && typeof module !== 'undefined' ? factory(exports) :
	typeof define === 'function' && define.amd ? define(['exports'], factory) :
	(factory((global.URI = global.URI || {})));
}(this, (function (exports) { 'use strict';

function merge() {
    for (var _len = arguments.length, sets = Array(_len), _key = 0; _key < _len; _key++) {
        sets[_key] = arguments[_key];
    }

    if (sets.length > 1) {
        sets[0] = sets[0].slice(0, -1);
        var xl = sets.length - 1;
        for (var x = 1; x < xl; ++x) {
            sets[x] = sets[x].slice(1, -1);
        }
        sets[xl] = sets[xl].slice(1);
        return sets.join('');
    } else {
        return sets[0];
    }
}
function subexp(str) {
    return "(?:" + str + ")";
}
function typeOf(o) {
    return o === undefined ? "undefined" : o === null ? "null" : Object.prototype.toString.call(o).split(" ").pop().split("]").shift().toLowerCase();
}
function toUpperCase(str) {
    return str.toUpperCase();
}
function toArray(obj) {
    return obj !== undefined && obj !== null ? obj instanceof Array ? obj : typeof obj.length !== "number" || obj.split || obj.setInterval || obj.call ? [obj] : Array.prototype.slice.call(obj) : [];
}
function assign(target, source) {
    var obj = target;
    if (source) {
        for (var key in source) {
            obj[key] = source[key];
        }
    }
    return obj;
}

function buildExps(isIRI) {
    var ALPHA$$ = "[A-Za-z]",
        CR$ = "[\\x0D]",
        DIGIT$$ = "[0-9]",
        DQUOTE$$ = "[\\x22]",
        HEXDIG$$ = merge(DIGIT$$, "[A-Fa-f]"),
        //case-insensitive
    LF$$ = "[\\x0A]",
        SP$$ = "[\\x20]",
        PCT_ENCODED$ = subexp(subexp("%[EFef]" + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$) + "|" + subexp("%[89A-Fa-f]" + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$) + "|" + subexp("%" + HEXDIG$$ + HEXDIG$$)),
        //expanded
    GEN_DELIMS$$ = "[\\:\\/\\?\\#\\[\\]\\@]",
        SUB_DELIMS$$ = "[\\!\\$\\&\\'\\(\\)\\*\\+\\,\\;\\=]",
        RESERVED$$ = merge(GEN_DELIMS$$, SUB_DELIMS$$),
        UCSCHAR$$ = isIRI ? "[\\xA0-\\u200D\\u2010-\\u2029\\u202F-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF]" : "[]",
        //subset, excludes bidi control characters
    IPRIVATE$$ = isIRI ? "[\\uE000-\\uF8FF]" : "[]",
        //subset
    UNRESERVED$$ = merge(ALPHA$$, DIGIT$$, "[\\-\\.\\_\\~]", UCSCHAR$$),
        SCHEME$ = subexp(ALPHA$$ + merge(ALPHA$$, DIGIT$$, "[\\+\\-\\.]") + "*"),
        USERINFO$ = subexp(subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\:]")) + "*"),
        DEC_OCTET$ = subexp(subexp("25[0-5]") + "|" + subexp("2[0-4]" + DIGIT$$) + "|" + subexp("1" + DIGIT$$ + DIGIT$$) + "|" + subexp("[1-9]" + DIGIT$$) + "|" + DIGIT$$),
        DEC_OCTET_RELAXED$ = subexp(subexp("25[0-5]") + "|" + subexp("2[0-4]" + DIGIT$$) + "|" + subexp("1" + DIGIT$$ + DIGIT$$) + "|" + subexp("0?[1-9]" + DIGIT$$) + "|0?0?" + DIGIT$$),
        //relaxed parsing rules
    IPV4ADDRESS$ = subexp(DEC_OCTET_RELAXED$ + "\\." + DEC_OCTET_RELAXED$ + "\\." + DEC_OCTET_RELAXED$ + "\\." + DEC_OCTET_RELAXED$),
        H16$ = subexp(HEXDIG$$ + "{1,4}"),
        LS32$ = subexp(subexp(H16$ + "\\:" + H16$) + "|" + IPV4ADDRESS$),
        IPV6ADDRESS1$ = subexp(subexp(H16$ + "\\:") + "{6}" + LS32$),
        //                           6( h16 ":" ) ls32
    IPV6ADDRESS2$ = subexp("\\:\\:" + subexp(H16$ + "\\:") + "{5}" + LS32$),
        //                      "::" 5( h16 ":" ) ls32
    IPV6ADDRESS3$ = subexp(subexp(H16$) + "?\\:\\:" + subexp(H16$ + "\\:") + "{4}" + LS32$),
        //[               h16 ] "::" 4( h16 ":" ) ls32
    IPV6ADDRESS4$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,1}" + H16$) + "?\\:\\:" + subexp(H16$ + "\\:") + "{3}" + LS32$),
        //[ *1( h16 ":" ) h16 ] "::" 3( h16 ":" ) ls32
    IPV6ADDRESS5$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,2}" + H16$) + "?\\:\\:" + subexp(H16$ + "\\:") + "{2}" + LS32$),
        //[ *2( h16 ":" ) h16 ] "::" 2( h16 ":" ) ls32
    IPV6ADDRESS6$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,3}" + H16$) + "?\\:\\:" + H16$ + "\\:" + LS32$),
        //[ *3( h16 ":" ) h16 ] "::"    h16 ":"   ls32
    IPV6ADDRESS7$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,4}" + H16$) + "?\\:\\:" + LS32$),
        //[ *4( h16 ":" ) h16 ] "::"              ls32
    IPV6ADDRESS8$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,5}" + H16$) + "?\\:\\:" + H16$),
        //[ *5( h16 ":" ) h16 ] "::"              h16
    IPV6ADDRESS9$ = subexp(subexp(subexp(H16$ + "\\:") + "{0,6}" + H16$) + "?\\:\\:"),
        //[ *6( h16 ":" ) h16 ] "::"
    IPV6ADDRESS$ = subexp([IPV6ADDRESS1$, IPV6ADDRESS2$, IPV6ADDRESS3$, IPV6ADDRESS4$, IPV6ADDRESS5$, IPV6ADDRESS6$, IPV6ADDRESS7$, IPV6ADDRESS8$, IPV6ADDRESS9$].join("|")),
        ZONEID$ = subexp(subexp(UNRESERVED$$ + "|" + PCT_ENCODED$) + "+"),
        //RFC 6874
    IPV6ADDRZ$ = subexp(IPV6ADDRESS$ + "\\%25" + ZONEID$),
        //RFC 6874
    IPV6ADDRZ_RELAXED$ = subexp(IPV6ADDRESS$ + subexp("\\%25|\\%(?!" + HEXDIG$$ + "{2})") + ZONEID$),
        //RFC 6874, with relaxed parsing rules
    IPVFUTURE$ = subexp("[vV]" + HEXDIG$$ + "+\\." + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\:]") + "+"),
        IP_LITERAL$ = subexp("\\[" + subexp(IPV6ADDRZ_RELAXED$ + "|" + IPV6ADDRESS$ + "|" + IPVFUTURE$) + "\\]"),
        //RFC 6874
    REG_NAME$ = subexp(subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$)) + "*"),
        HOST$ = subexp(IP_LITERAL$ + "|" + IPV4ADDRESS$ + "(?!" + REG_NAME$ + ")" + "|" + REG_NAME$),
        PORT$ = subexp(DIGIT$$ + "*"),
        AUTHORITY$ = subexp(subexp(USERINFO$ + "@") + "?" + HOST$ + subexp("\\:" + PORT$) + "?"),
        PCHAR$ = subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\:\\@]")),
        SEGMENT$ = subexp(PCHAR$ + "*"),
        SEGMENT_NZ$ = subexp(PCHAR$ + "+"),
        SEGMENT_NZ_NC$ = subexp(subexp(PCT_ENCODED$ + "|" + merge(UNRESERVED$$, SUB_DELIMS$$, "[\\@]")) + "+"),
        PATH_ABEMPTY$ = subexp(subexp("\\/" + SEGMENT$) + "*"),
        PATH_ABSOLUTE$ = subexp("\\/" + subexp(SEGMENT_NZ$ + PATH_ABEMPTY$) + "?"),
        //simplified
    PATH_NOSCHEME$ = subexp(SEGMENT_NZ_NC$ + PATH_ABEMPTY$),
        //simplified
    PATH_ROOTLESS$ = subexp(SEGMENT_NZ$ + PATH_ABEMPTY$),
        //simplified
    PATH_EMPTY$ = "(?!" + PCHAR$ + ")",
        PATH$ = subexp(PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_NOSCHEME$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$),
        QUERY$ = subexp(subexp(PCHAR$ + "|" + merge("[\\/\\?]", IPRIVATE$$)) + "*"),
        FRAGMENT$ = subexp(subexp(PCHAR$ + "|[\\/\\?]") + "*"),
        HIER_PART$ = subexp(subexp("\\/\\/" + AUTHORITY$ + PATH_ABEMPTY$) + "|" + PATH_ABSOLUTE$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$),
        URI$ = subexp(SCHEME$ + "\\:" + HIER_PART$ + subexp("\\?" + QUERY$) + "?" + subexp("\\#" + FRAGMENT$) + "?"),
        RELATIVE_PART$ = subexp(subexp("\\/\\/" + AUTHORITY$ + PATH_ABEMPTY$) + "|" + PATH_ABSOLUTE$ + "|" + PATH_NOSCHEME$ + "|" + PATH_EMPTY$),
        RELATIVE$ = subexp(RELATIVE_PART$ + subexp("\\?" + QUERY$) + "?" + subexp("\\#" + FRAGMENT$) + "?"),
        URI_REFERENCE$ = subexp(URI$ + "|" + RELATIVE$),
        ABSOLUTE_URI$ = subexp(SCHEME$ + "\\:" + HIER_PART$ + subexp("\\?" + QUERY$) + "?"),
        GENERIC_REF$ = "^(" + SCHEME$ + ")\\:" + subexp(subexp("\\/\\/(" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?)") + "?(" + PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$ + ")") + subexp("\\?(" + QUERY$ + ")") + "?" + subexp("\\#(" + FRAGMENT$ + ")") + "?$",
        RELATIVE_REF$ = "^(){0}" + subexp(subexp("\\/\\/(" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?)") + "?(" + PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_NOSCHEME$ + "|" + PATH_EMPTY$ + ")") + subexp("\\?(" + QUERY$ + ")") + "?" + subexp("\\#(" + FRAGMENT$ + ")") + "?$",
        ABSOLUTE_REF$ = "^(" + SCHEME$ + ")\\:" + subexp(subexp("\\/\\/(" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?)") + "?(" + PATH_ABEMPTY$ + "|" + PATH_ABSOLUTE$ + "|" + PATH_ROOTLESS$ + "|" + PATH_EMPTY$ + ")") + subexp("\\?(" + QUERY$ + ")") + "?$",
        SAMEDOC_REF$ = "^" + subexp("\\#(" + FRAGMENT$ + ")") + "?$",
        AUTHORITY_REF$ = "^" + subexp("(" + USERINFO$ + ")@") + "?(" + HOST$ + ")" + subexp("\\:(" + PORT$ + ")") + "?$";
    return {
        NOT_SCHEME: new RegExp(merge("[^]", ALPHA$$, DIGIT$$, "[\\+\\-\\.]"), "g"),
        NOT_USERINFO: new RegExp(merge("[^\\%\\:]", UNRESERVED$$, SUB_DELIMS$$), "g"),
        NOT_HOST: new RegExp(merge("[^\\%\\[\\]\\:]", UNRESERVED$$, SUB_DELIMS$$), "g"),
        NOT_PATH: new RegExp(merge("[^\\%\\/\\:\\@]", UNRESERVED$$, SUB_DELIMS$$), "g"),
        NOT_PATH_NOSCHEME: new RegExp(merge("[^\\%\\/\\@]", UNRESERVED$$, SUB_DELIMS$$), "g"),
        NOT_QUERY: new RegExp(merge("[^\\%]", UNRESERVED$$, SUB_DELIMS$$, "[\\:\\@\\/\\?]", IPRIVATE$$), "g"),
        NOT_FRAGMENT: new RegExp(merge("[^\\%]", UNRESERVED$$, SUB_DELIMS$$, "[\\:\\@\\/\\?]"), "g"),
        ESCAPE: new RegExp(merge("[^]", UNRESERVED$$, SUB_DELIMS$$), "g"),
        UNRESERVED: new RegExp(UNRESERVED$$, "g"),
        OTHER_CHARS: new RegExp(merge("[^\\%]", UNRESERVED$$, RESERVED$$), "g"),
        PCT_ENCODED: new RegExp(PCT_ENCODED$, "g"),
        IPV4ADDRESS: new RegExp("^(" + IPV4ADDRESS$ + ")$"),
        IPV6ADDRESS: new RegExp("^\\[?(" + IPV6ADDRESS$ + ")" + subexp(subexp("\\%25|\\%(?!" + HEXDIG$$ + "{2})") + "(" + ZONEID$ + ")") + "?\\]?$") //RFC 6874, with relaxed parsing rules
    };
}
var URI_PROTOCOL = buildExps(false);

var IRI_PROTOCOL = buildExps(true);

var slicedToArray = function () {
  function sliceIterator(arr, i) {
    var _arr = [];
    var _n = true;
    var _d = false;
    var _e = undefined;

    try {
      for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) {
        _arr.push(_s.value);

        if (i && _arr.length === i) break;
      }
    } catch (err) {
      _d = true;
      _e = err;
    } finally {
      try {
        if (!_n && _i["return"]) _i["return"]();
      } finally {
        if (_d) throw _e;
      }
    }

    return _arr;
  }

  return function (arr, i) {
    if (Array.isArray(arr)) {
      return arr;
    } else if (Symbol.iterator in Object(arr)) {
      return sliceIterator(arr, i);
    } else {
      throw new TypeError("Invalid attempt to destructure non-iterable instance");
    }
  };
}();













var toConsumableArray = function (arr) {
  if (Array.isArray(arr)) {
    for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) arr2[i] = arr[i];

    return arr2;
  } else {
    return Array.from(arr);
  }
};

/** Highest positive signed 32-bit float value */

var maxInt = 2147483647; // aka. 0x7FFFFFFF or 2^31-1

/** Bootstring parameters */
var base = 36;
var tMin = 1;
var tMax = 26;
var skew = 38;
var damp = 700;
var initialBias = 72;
var initialN = 128; // 0x80
var delimiter = '-'; // '\x2D'

/** Regular expressions */
var regexPunycode = /^xn--/;
var regexNonASCII = /[^\0-\x7E]/; // non-ASCII chars
var regexSeparators = /[\x2E\u3002\uFF0E\uFF61]/g; // RFC 3490 separators

/** Error messages */
var errors = {
	'overflow': 'Overflow: input needs wider integers to process',
	'not-basic': 'Illegal input >= 0x80 (not a basic code point)',
	'invalid-input': 'Invalid input'
};

/** Convenience shortcuts */
var baseMinusTMin = base - tMin;
var floor = Math.floor;
var stringFromCharCode = String.fromCharCode;

/*--------------------------------------------------------------------------*/

/**
 * A generic error utility function.
 * @private
 * @param {String} type The error type.
 * @returns {Error} Throws a `RangeError` with the applicable error message.
 */
function error$1(type) {
	throw new RangeError(errors[type]);
}

/**
 * A generic `Array#map` utility function.
 * @private
 * @param {Array} array The array to iterate over.
 * @param {Function} callback The function that gets called for every array
 * item.
 * @returns {Array} A new array of values returned by the callback function.
 */
function map(array, fn) {
	var result = [];
	var length = array.length;
	while (length--) {
		result[length] = fn(array[length]);
	}
	return result;
}

/**
 * A simple `Array#map`-like wrapper to work with domain name strings or email
 * addresses.
 * @private
 * @param {String} domain The domain name or email address.
 * @param {Function} callback The function that gets called for every
 * character.
 * @returns {Array} A new string of characters returned by the callback
 * function.
 */
function mapDomain(string, fn) {
	var parts = string.split('@');
	var result = '';
	if (parts.length > 1) {
		// In email addresses, only the domain name should be punycoded. Leave
		// the local part (i.e. everything up to `@`) intact.
		result = parts[0] + '@';
		string = parts[1];
	}
	// Avoid `split(regex)` for IE8 compatibility. See #17.
	string = string.replace(regexSeparators, '\x2E');
	var labels = string.split('.');
	var encoded = map(labels, fn).join('.');
	return result + encoded;
}

/**
 * Creates an array containing the numeric code points of each Unicode
 * character in the string. While JavaScript uses UCS-2 internally,
 * this function will convert a pair of surrogate halves (each of which
 * UCS-2 exposes as separate characters) into a single code point,
 * matching UTF-16.
 * @see `punycode.ucs2.encode`
 * @see <https://mathiasbynens.be/notes/javascript-encoding>
 * @memberOf punycode.ucs2
 * @name decode
 * @param {String} string The Unicode input string (UCS-2).
 * @returns {Array} The new array of code points.
 */
function ucs2decode(string) {
	var output = [];
	var counter = 0;
	var length = string.length;
	while (counter < length) {
		var value = string.charCodeAt(counter++);
		if (value >= 0xD800 && value <= 0xDBFF && counter < length) {
			// It's a high surrogate, and there is a next character.
			var extra = string.charCodeAt(counter++);
			if ((extra & 0xFC00) == 0xDC00) {
				// Low surrogate.
				output.push(((value & 0x3FF) << 10) + (extra & 0x3FF) + 0x10000);
			} else {
				// It's an unmatched surrogate; only append this code unit, in case the
				// next code unit is the high surrogate of a surrogate pair.
				output.push(value);
				counter--;
			}
		} else {
			output.push(value);
		}
	}
	return output;
}

/**
 * Creates a string based on an array of numeric code points.
 * @see `punycode.ucs2.decode`
 * @memberOf punycode.ucs2
 * @name encode
 * @param {Array} codePoints The array of numeric code points.
 * @returns {String} The new Unicode string (UCS-2).
 */
var ucs2encode = function ucs2encode(array) {
	return String.fromCodePoint.apply(String, toConsumableArray(array));
};

/**
 * Converts a basic code point into a digit/integer.
 * @see `digitToBasic()`
 * @private
 * @param {Number} codePoint The basic numeric code point value.
 * @returns {Number} The numeric value of a basic code point (for use in
 * representing integers) in the range `0` to `base - 1`, or `base` if
 * the code point does not represent a value.
 */
var basicToDigit = function basicToDigit(codePoint) {
	if (codePoint - 0x30 < 0x0A) {
		return codePoint - 0x16;
	}
	if (codePoint - 0x41 < 0x1A) {
		return codePoint - 0x41;
	}
	if (codePoint - 0x61 < 0x1A) {
		return codePoint - 0x61;
	}
	return base;
};

/**
 * Converts a digit/integer into a basic code point.
 * @see `basicToDigit()`
 * @private
 * @param {Number} digit The numeric value of a basic code point.
 * @returns {Number} The basic code point whose value (when used for
 * representing integers) is `digit`, which needs to be in the range
 * `0` to `base - 1`. If `flag` is non-zero, the uppercase form is
 * used; else, the lowercase form is used. The behavior is undefined
 * if `flag` is non-zero and `digit` has no uppercase form.
 */
var digitToBasic = function digitToBasic(digit, flag) {
	//  0..25 map to ASCII a..z or A..Z
	// 26..35 map to ASCII 0..9
	return digit + 22 + 75 * (digit < 26) - ((flag != 0) << 5);
};

/**
 * Bias adaptation function as per section 3.4 of RFC 3492.
 * https://tools.ietf.org/html/rfc3492#section-3.4
 * @private
 */
var adapt = function adapt(delta, numPoints, firstTime) {
	var k = 0;
	delta = firstTime ? floor(delta / damp) : delta >> 1;
	delta += floor(delta / numPoints);
	for (; /* no initialization */delta > baseMinusTMin * tMax >> 1; k += base) {
		delta = floor(delta / baseMinusTMin);
	}
	return floor(k + (baseMinusTMin + 1) * delta / (delta + skew));
};

/**
 * Converts a Punycode string of ASCII-only symbols to a string of Unicode
 * symbols.
 * @memberOf punycode
 * @param {String} input The Punycode string of ASCII-only symbols.
 * @returns {String} The resulting string of Unicode symbols.
 */
var decode = function decode(input) {
	// Don't use UCS-2.
	var output = [];
	var inputLength = input.length;
	var i = 0;
	var n = initialN;
	var bias = initialBias;

	// Handle the basic code points: let `basic` be the number of input code
	// points before the last delimiter, or `0` if there is none, then copy
	// the first basic code points to the output.

	var basic = input.lastIndexOf(delimiter);
	if (basic < 0) {
		basic = 0;
	}

	for (var j = 0; j < basic; ++j) {
		// if it's not a basic code point
		if (input.charCodeAt(j) >= 0x80) {
			error$1('not-basic');
		}
		output.push(input.charCodeAt(j));
	}

	// Main decoding loop: start just after the last delimiter if any basic code
	// points were copied; start at the beginning otherwise.

	for (var index = basic > 0 ? basic + 1 : 0; index < inputLength;) /* no final expression */{

		// `index` is the index of the next character to be consumed.
		// Decode a generalized variable-length integer into `delta`,
		// which gets added to `i`. The overflow checking is easier
		// if we increase `i` as we go, then subtract off its starting
		// value at the end to obtain `delta`.
		var oldi = i;
		for (var w = 1, k = base;; /* no condition */k += base) {

			if (index >= inputLength) {
				error$1('invalid-input');
			}

			var digit = basicToDigit(input.charCodeAt(index++));

			if (digit >= base || digit > floor((maxInt - i) / w)) {
				error$1('overflow');
			}

			i += digit * w;
			var t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;

			if (digit < t) {
				break;
			}

			var baseMinusT = base - t;
			if (w > floor(maxInt / baseMinusT)) {
				error$1('overflow');
			}

			w *= baseMinusT;
		}

		var out = output.length + 1;
		bias = adapt(i - oldi, out, oldi == 0);

		// `i` was supposed to wrap around from `out` to `0`,
		// incrementing `n` each time, so we'll fix that now:
		if (floor(i / out) > maxInt - n) {
			error$1('overflow');
		}

		n += floor(i / out);
		i %= out;

		// Insert `n` at position `i` of the output.
		output.splice(i++, 0, n);
	}

	return String.fromCodePoint.apply(String, output);
};

/**
 * Converts a string of Unicode symbols (e.g. a domain name label) to a
 * Punycode string of ASCII-only symbols.
 * @memberOf punycode
 * @param {String} input The string of Unicode symbols.
 * @returns {String} The resulting Punycode string of ASCII-only symbols.
 */
var encode = function encode(input) {
	var output = [];

	// Convert the input in UCS-2 to an array of Unicode code points.
	input = ucs2decode(input);

	// Cache the length.
	var inputLength = input.length;

	// Initialize the state.
	var n = initialN;
	var delta = 0;
	var bias = initialBias;

	// Handle the basic code points.
	var _iteratorNormalCompletion = true;
	var _didIteratorError = false;
	var _iteratorError = undefined;

	try {
		for (var _iterator = input[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
			var _currentValue2 = _step.value;

			if (_currentValue2 < 0x80) {
				output.push(stringFromCharCode(_currentValue2));
			}
		}
	} catch (err) {
		_didIteratorError = true;
		_iteratorError = err;
	} finally {
		try {
			if (!_iteratorNormalCompletion && _iterator.return) {
				_iterator.return();
			}
		} finally {
			if (_didIteratorError) {
				throw _iteratorError;
			}
		}
	}

	var basicLength = output.length;
	var handledCPCount = basicLength;

	// `handledCPCount` is the number of code points that have been handled;
	// `basicLength` is the number of basic code points.

	// Finish the basic string with a delimiter unless it's empty.
	if (basicLength) {
		output.push(delimiter);
	}

	// Main encoding loop:
	while (handledCPCount < inputLength) {

		// All non-basic code points < n have been handled already. Find the next
		// larger one:
		var m = maxInt;
		var _iteratorNormalCompletion2 = true;
		var _didIteratorError2 = false;
		var _iteratorError2 = undefined;

		try {
			for (var _iterator2 = input[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
				var currentValue = _step2.value;

				if (currentValue >= n && currentValue < m) {
					m = currentValue;
				}
			}

			// Increase `delta` enough to advance the decoder's <n,i> state to <m,0>,
			// but guard against overflow.
		} catch (err) {
			_didIteratorError2 = true;
			_iteratorError2 = err;
		} finally {
			try {
				if (!_iteratorNormalCompletion2 && _iterator2.return) {
					_iterator2.return();
				}
			} finally {
				if (_didIteratorError2) {
					throw _iteratorError2;
				}
			}
		}

		var handledCPCountPlusOne = handledCPCount + 1;
		if (m - n > floor((maxInt - delta) / handledCPCountPlusOne)) {
			error$1('overflow');
		}

		delta += (m - n) * handledCPCountPlusOne;
		n = m;

		var _iteratorNormalCompletion3 = true;
		var _didIteratorError3 = false;
		var _iteratorError3 = undefined;

		try {
			for (var _iterator3 = input[Symbol.iterator](), _step3; !(_iteratorNormalCompletion3 = (_step3 = _iterator3.next()).done); _iteratorNormalCompletion3 = true) {
				var _currentValue = _step3.value;

				if (_currentValue < n && ++delta > maxInt) {
					error$1('overflow');
				}
				if (_currentValue == n) {
					// Represent delta as a generalized variable-length integer.
					var q = delta;
					for (var k = base;; /* no condition */k += base) {
						var t = k <= bias ? tMin : k >= bias + tMax ? tMax : k - bias;
						if (q < t) {
							break;
						}
						var qMinusT = q - t;
						var baseMinusT = base - t;
						output.push(stringFromCharCode(digitToBasic(t + qMinusT % baseMinusT, 0)));
						q = floor(qMinusT / baseMinusT);
					}

					output.push(stringFromCharCode(digitToBasic(q, 0)));
					bias = adapt(delta, handledCPCountPlusOne, handledCPCount == basicLength);
					delta = 0;
					++handledCPCount;
				}
			}
		} catch (err) {
			_didIteratorError3 = true;
			_iteratorError3 = err;
		} finally {
			try {
				if (!_iteratorNormalCompletion3 && _iterator3.return) {
					_iterator3.return();
				}
			} finally {
				if (_didIteratorError3) {
					throw _iteratorError3;
				}
			}
		}

		++delta;
		++n;
	}
	return output.join('');
};

/**
 * Converts a Punycode string representing a domain name or an email address
 * to Unicode. Only the Punycoded parts of the input will be converted, i.e.
 * it doesn't matter if you call it on a string that has already been
 * converted to Unicode.
 * @memberOf punycode
 * @param {String} input The Punycoded domain name or email address to
 * convert to Unicode.
 * @returns {String} The Unicode representation of the given Punycode
 * string.
 */
var toUnicode = function toUnicode(input) {
	return mapDomain(input, function (string) {
		return regexPunycode.test(string) ? decode(string.slice(4).toLowerCase()) : string;
	});
};

/**
 * Converts a Unicode string representing a domain name or an email address to
 * Punycode. Only the non-ASCII parts of the domain name will be converted,
 * i.e. it doesn't matter if you call it with a domain that's already in
 * ASCII.
 * @memberOf punycode
 * @param {String} input The domain name or email address to convert, as a
 * Unicode string.
 * @returns {String} The Punycode representation of the given domain name or
 * email address.
 */
var toASCII = function toASCII(input) {
	return mapDomain(input, function (string) {
		return regexNonASCII.test(string) ? 'xn--' + encode(string) : string;
	});
};

/*--------------------------------------------------------------------------*/

/** Define the public API */
var punycode = {
	/**
  * A string representing the current Punycode.js version number.
  * @memberOf punycode
  * @type String
  */
	'version': '2.1.0',
	/**
  * An object of methods to convert from JavaScript's internal character
  * representation (UCS-2) to Unicode code points, and back.
  * @see <https://mathiasbynens.be/notes/javascript-encoding>
  * @memberOf punycode
  * @type Object
  */
	'ucs2': {
		'decode': ucs2decode,
		'encode': ucs2encode
	},
	'decode': decode,
	'encode': encode,
	'toASCII': toASCII,
	'toUnicode': toUnicode
};

/**
 * URI.js
 *
 * @fileoverview An RFC 3986 compliant, scheme extendable URI parsing/validating/resolving library for JavaScript.
 * @author <a href="mailto:gary.court@gmail.com">Gary Court</a>
 * @see http://github.com/garycourt/uri-js
 */
/**
 * Copyright 2011 Gary Court. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification, are
 * permitted provided that the following conditions are met:
 *
 *    1. Redistributions of source code must retain the above copyright notice, this list of
 *       conditions and the following disclaimer.
 *
 *    2. Redistributions in binary form must reproduce the above copyright notice, this list
 *       of conditions and the following disclaimer in the documentation and/or other materials
 *       provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY GARY COURT ``AS IS'' AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
 * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL GARY COURT OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * The views and conclusions contained in the software and documentation are those of the
 * authors and should not be interpreted as representing official policies, either expressed
 * or implied, of Gary Court.
 */
var SCHEMES = {};
function pctEncChar(chr) {
    var c = chr.charCodeAt(0);
    var e = void 0;
    if (c < 16) e = "%0" + c.toString(16).toUpperCase();else if (c < 128) e = "%" + c.toString(16).toUpperCase();else if (c < 2048) e = "%" + (c >> 6 | 192).toString(16).toUpperCase() + "%" + (c & 63 | 128).toString(16).toUpperCase();else e = "%" + (c >> 12 | 224).toString(16).toUpperCase() + "%" + (c >> 6 & 63 | 128).toString(16).toUpperCase() + "%" + (c & 63 | 128).toString(16).toUpperCase();
    return e;
}
function pctDecChars(str) {
    var newStr = "";
    var i = 0;
    var il = str.length;
    while (i < il) {
        var c = parseInt(str.substr(i + 1, 2), 16);
        if (c < 128) {
            newStr += String.fromCharCode(c);
            i += 3;
        } else if (c >= 194 && c < 224) {
            if (il - i >= 6) {
                var c2 = parseInt(str.substr(i + 4, 2), 16);
                newStr += String.fromCharCode((c & 31) << 6 | c2 & 63);
            } else {
                newStr += str.substr(i, 6);
            }
            i += 6;
        } else if (c >= 224) {
            if (il - i >= 9) {
                var _c = parseInt(str.substr(i + 4, 2), 16);
                var c3 = parseInt(str.substr(i + 7, 2), 16);
                newStr += String.fromCharCode((c & 15) << 12 | (_c & 63) << 6 | c3 & 63);
            } else {
                newStr += str.substr(i, 9);
            }
            i += 9;
        } else {
            newStr += str.substr(i, 3);
            i += 3;
        }
    }
    return newStr;
}
function _normalizeComponentEncoding(components, protocol) {
    function decodeUnreserved(str) {
        var decStr = pctDecChars(str);
        return !decStr.match(protocol.UNRESERVED) ? str : decStr;
    }
    if (components.scheme) components.scheme = String(components.scheme).replace(protocol.PCT_ENCODED, decodeUnreserved).toLowerCase().replace(protocol.NOT_SCHEME, "");
    if (components.userinfo !== undefined) components.userinfo = String(components.userinfo).replace(protocol.PCT_ENCODED, decodeUnreserved).replace(protocol.NOT_USERINFO, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
    if (components.host !== undefined) components.host = String(components.host).replace(protocol.PCT_ENCODED, decodeUnreserved).toLowerCase().replace(protocol.NOT_HOST, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
    if (components.path !== undefined) components.path = String(components.path).replace(protocol.PCT_ENCODED, decodeUnreserved).replace(components.scheme ? protocol.NOT_PATH : protocol.NOT_PATH_NOSCHEME, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
    if (components.query !== undefined) components.query = String(components.query).replace(protocol.PCT_ENCODED, decodeUnreserved).replace(protocol.NOT_QUERY, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
    if (components.fragment !== undefined) components.fragment = String(components.fragment).replace(protocol.PCT_ENCODED, decodeUnreserved).replace(protocol.NOT_FRAGMENT, pctEncChar).replace(protocol.PCT_ENCODED, toUpperCase);
    return components;
}

function _stripLeadingZeros(str) {
    return str.replace(/^0*(.*)/, "$1") || "0";
}
function _normalizeIPv4(host, protocol) {
    var matches = host.match(protocol.IPV4ADDRESS) || [];

    var _matches = slicedToArray(matches, 2),
        address = _matches[1];

    if (address) {
        return address.split(".").map(_stripLeadingZeros).join(".");
    } else {
        return host;
    }
}
function _normalizeIPv6(host, protocol) {
    var matches = host.match(protocol.IPV6ADDRESS) || [];

    var _matches2 = slicedToArray(matches, 3),
        address = _matches2[1],
        zone = _matches2[2];

    if (address) {
        var _address$toLowerCase$ = address.toLowerCase().split('::').reverse(),
            _address$toLowerCase$2 = slicedToArray(_address$toLowerCase$, 2),
            last = _address$toLowerCase$2[0],
            first = _address$toLowerCase$2[1];

        var firstFields = first ? first.split(":").map(_stripLeadingZeros) : [];
        var lastFields = last.split(":").map(_stripLeadingZeros);
        var isLastFieldIPv4Address = protocol.IPV4ADDRESS.test(lastFields[lastFields.length - 1]);
        var fieldCount = isLastFieldIPv4Address ? 7 : 8;
        var lastFieldsStart = lastFields.length - fieldCount;
        var fields = Array(fieldCount);
        for (var x = 0; x < fieldCount; ++x) {
            fields[x] = firstFields[x] || lastFields[lastFieldsStart + x] || '';
        }
        if (isLastFieldIPv4Address) {
            fields[fieldCount - 1] = _normalizeIPv4(fields[fieldCount - 1], protocol);
        }
        var allZeroFields = fields.reduce(function (acc, field, index) {
            if (!field || field === "0") {
                var lastLongest = acc[acc.length - 1];
                if (lastLongest && lastLongest.index + lastLongest.length === index) {
                    lastLongest.length++;
                } else {
                    acc.push({ index: index, length: 1 });
                }
            }
            return acc;
        }, []);
        var longestZeroFields = allZeroFields.sort(function (a, b) {
            return b.length - a.length;
        })[0];
        var newHost = void 0;
        if (longestZeroFields && longestZeroFields.length > 1) {
            var newFirst = fields.slice(0, longestZeroFields.index);
            var newLast = fields.slice(longestZeroFields.index + longestZeroFields.length);
            newHost = newFirst.join(":") + "::" + newLast.join(":");
        } else {
            newHost = fields.join(":");
        }
        if (zone) {
            newHost += "%" + zone;
        }
        return newHost;
    } else {
        return host;
    }
}
var URI_PARSE = /^(?:([^:\/?#]+):)?(?:\/\/((?:([^\/?#@]*)@)?(\[[^\/?#\]]+\]|[^\/?#:]*)(?:\:(\d*))?))?([^?#]*)(?:\?([^#]*))?(?:#((?:.|\n|\r)*))?/i;
var NO_MATCH_IS_UNDEFINED = "".match(/(){0}/)[1] === undefined;
function parse(uriString) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    var components = {};
    var protocol = options.iri !== false ? IRI_PROTOCOL : URI_PROTOCOL;
    if (options.reference === "suffix") uriString = (options.scheme ? options.scheme + ":" : "") + "//" + uriString;
    var matches = uriString.match(URI_PARSE);
    if (matches) {
        if (NO_MATCH_IS_UNDEFINED) {
            //store each component
            components.scheme = matches[1];
            components.userinfo = matches[3];
            components.host = matches[4];
            components.port = parseInt(matches[5], 10);
            components.path = matches[6] || "";
            components.query = matches[7];
            components.fragment = matches[8];
            //fix port number
            if (isNaN(components.port)) {
                components.port = matches[5];
            }
        } else {
            //IE FIX for improper RegExp matching
            //store each component
            components.scheme = matches[1] || undefined;
            components.userinfo = uriString.indexOf("@") !== -1 ? matches[3] : undefined;
            components.host = uriString.indexOf("//") !== -1 ? matches[4] : undefined;
            components.port = parseInt(matches[5], 10);
            components.path = matches[6] || "";
            components.query = uriString.indexOf("?") !== -1 ? matches[7] : undefined;
            components.fragment = uriString.indexOf("#") !== -1 ? matches[8] : undefined;
            //fix port number
            if (isNaN(components.port)) {
                components.port = uriString.match(/\/\/(?:.|\n)*\:(?:\/|\?|\#|$)/) ? matches[4] : undefined;
            }
        }
        if (components.host) {
            //normalize IP hosts
            components.host = _normalizeIPv6(_normalizeIPv4(components.host, protocol), protocol);
        }
        //determine reference type
        if (components.scheme === undefined && components.userinfo === undefined && components.host === undefined && components.port === undefined && !components.path && components.query === undefined) {
            components.reference = "same-document";
        } else if (components.scheme === undefined) {
            components.reference = "relative";
        } else if (components.fragment === undefined) {
            components.reference = "absolute";
        } else {
            components.reference = "uri";
        }
        //check for reference errors
        if (options.reference && options.reference !== "suffix" && options.reference !== components.reference) {
            components.error = components.error || "URI is not a " + options.reference + " reference.";
        }
        //find scheme handler
        var schemeHandler = SCHEMES[(options.scheme || components.scheme || "").toLowerCase()];
        //check if scheme can't handle IRIs
        if (!options.unicodeSupport && (!schemeHandler || !schemeHandler.unicodeSupport)) {
            //if host component is a domain name
            if (components.host && (options.domainHost || schemeHandler && schemeHandler.domainHost)) {
                //convert Unicode IDN -> ASCII IDN
                try {
                    components.host = punycode.toASCII(components.host.replace(protocol.PCT_ENCODED, pctDecChars).toLowerCase());
                } catch (e) {
                    components.error = components.error || "Host's domain name can not be converted to ASCII via punycode: " + e;
                }
            }
            //convert IRI -> URI
            _normalizeComponentEncoding(components, URI_PROTOCOL);
        } else {
            //normalize encodings
            _normalizeComponentEncoding(components, protocol);
        }
        //perform scheme specific parsing
        if (schemeHandler && schemeHandler.parse) {
            schemeHandler.parse(components, options);
        }
    } else {
        components.error = components.error || "URI can not be parsed.";
    }
    return components;
}

function _recomposeAuthority(components, options) {
    var protocol = options.iri !== false ? IRI_PROTOCOL : URI_PROTOCOL;
    var uriTokens = [];
    if (components.userinfo !== undefined) {
        uriTokens.push(components.userinfo);
        uriTokens.push("@");
    }
    if (components.host !== undefined) {
        //normalize IP hosts, add brackets and escape zone separator for IPv6
        uriTokens.push(_normalizeIPv6(_normalizeIPv4(String(components.host), protocol), protocol).replace(protocol.IPV6ADDRESS, function (_, $1, $2) {
            return "[" + $1 + ($2 ? "%25" + $2 : "") + "]";
        }));
    }
    if (typeof components.port === "number") {
        uriTokens.push(":");
        uriTokens.push(components.port.toString(10));
    }
    return uriTokens.length ? uriTokens.join("") : undefined;
}

var RDS1 = /^\.\.?\//;
var RDS2 = /^\/\.(\/|$)/;
var RDS3 = /^\/\.\.(\/|$)/;
var RDS5 = /^\/?(?:.|\n)*?(?=\/|$)/;
function removeDotSegments(input) {
    var output = [];
    while (input.length) {
        if (input.match(RDS1)) {
            input = input.replace(RDS1, "");
        } else if (input.match(RDS2)) {
            input = input.replace(RDS2, "/");
        } else if (input.match(RDS3)) {
            input = input.replace(RDS3, "/");
            output.pop();
        } else if (input === "." || input === "..") {
            input = "";
        } else {
            var im = input.match(RDS5);
            if (im) {
                var s = im[0];
                input = input.slice(s.length);
                output.push(s);
            } else {
                throw new Error("Unexpected dot segment condition");
            }
        }
    }
    return output.join("");
}

function serialize(components) {
    var options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

    var protocol = options.iri ? IRI_PROTOCOL : URI_PROTOCOL;
    var uriTokens = [];
    //find scheme handler
    var schemeHandler = SCHEMES[(options.scheme || components.scheme || "").toLowerCase()];
    //perform scheme specific serialization
    if (schemeHandler && schemeHandler.serialize) schemeHandler.serialize(components, options);
    if (components.host) {
        //if host component is an IPv6 address
        if (protocol.IPV6ADDRESS.test(components.host)) {}
        //TODO: normalize IPv6 address as per RFC 5952

        //if host component is a domain name
        else if (options.domainHost || schemeHandler && schemeHandler.domainHost) {
                //convert IDN via punycode
                try {
                    components.host = !options.iri ? punycode.toASCII(components.host.replace(protocol.PCT_ENCODED, pctDecChars).toLowerCase()) : punycode.toUnicode(components.host);
                } catch (e) {
                    components.error = components.error || "Host's domain name can not be converted to " + (!options.iri ? "ASCII" : "Unicode") + " via punycode: " + e;
                }
            }
    }
    //normalize encoding
    _normalizeComponentEncoding(components, protocol);
    if (options.reference !== "suffix" && components.scheme) {
        uriTokens.push(components.scheme);
        uriTokens.push(":");
    }
    var authority = _recomposeAuthority(components, options);
    if (authority !== undefined) {
        if (options.reference !== "suffix") {
            uriTokens.push("//");
        }
        uriTokens.push(authority);
        if (components.path && components.path.charAt(0) !== "/") {
            uriTokens.push("/");
        }
    }
    if (components.path !== undefined) {
        var s = components.path;
        if (!options.absolutePath && (!schemeHandler || !schemeHandler.absolutePath)) {
            s = removeDotSegments(s);
        }
        if (authority === undefined) {
            s = s.replace(/^\/\//, "/%2F"); //don't allow the path to start with "//"
        }
        uriTokens.push(s);
    }
    if (components.query !== undefined) {
        uriTokens.push("?");
        uriTokens.push(components.query);
    }
    if (components.fragment !== undefined) {
        uriTokens.push("#");
        uriTokens.push(components.fragment);
    }
    return uriTokens.join(""); //merge tokens into a string
}

function resolveComponents(base, relative) {
    var options = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : {};
    var skipNormalization = arguments[3];

    var target = {};
    if (!skipNormalization) {
        base = parse(serialize(base, options), options); //normalize base components
        relative = parse(serialize(relative, options), options); //normalize relative components
    }
    options = options || {};
    if (!options.tolerant && relative.scheme) {
        target.scheme = relative.scheme;
        //target.authority = relative.authority;
        target.userinfo = relative.userinfo;
        target.host = relative.host;
        target.port = relative.port;
        target.path = removeDotSegments(relative.path || "");
        target.query = relative.query;
    } else {
        if (relative.userinfo !== undefined || relative.host !== undefined || relative.port !== undefined) {
            //target.authority = relative.authority;
            target.userinfo = relative.userinfo;
            target.host = relative.host;
            target.port = relative.port;
            target.path = removeDotSegments(relative.path || "");
            target.query = relative.query;
        } else {
            if (!relative.path) {
                target.path = base.path;
                if (relative.query !== undefined) {
                    target.query = relative.query;
                } else {
                    target.query = base.query;
                }
            } else {
                if (relative.path.charAt(0) === "/") {
                    target.path = removeDotSegments(relative.path);
                } else {
                    if ((base.userinfo !== undefined || base.host !== undefined || base.port !== undefined) && !base.path) {
                        target.path = "/" + relative.path;
                    } else if (!base.path) {
                        target.path = relative.path;
                    } else {
                        target.path = base.path.slice(0, base.path.lastIndexOf("/") + 1) + relative.path;
                    }
                    target.path = removeDotSegments(target.path);
                }
                target.query = relative.query;
            }
            //target.authority = base.authority;
            target.userinfo = base.userinfo;
            target.host = base.host;
            target.port = base.port;
        }
        target.scheme = base.scheme;
    }
    target.fragment = relative.fragment;
    return target;
}

function resolve(baseURI, relativeURI, options) {
    var schemelessOptions = assign({ scheme: 'null' }, options);
    return serialize(resolveComponents(parse(baseURI, schemelessOptions), parse(relativeURI, schemelessOptions), schemelessOptions, true), schemelessOptions);
}

function normalize(uri, options) {
    if (typeof uri === "string") {
        uri = serialize(parse(uri, options), options);
    } else if (typeOf(uri) === "object") {
        uri = parse(serialize(uri, options), options);
    }
    return uri;
}

function equal(uriA, uriB, options) {
    if (typeof uriA === "string") {
        uriA = serialize(parse(uriA, options), options);
    } else if (typeOf(uriA) === "object") {
        uriA = serialize(uriA, options);
    }
    if (typeof uriB === "string") {
        uriB = serialize(parse(uriB, options), options);
    } else if (typeOf(uriB) === "object") {
        uriB = serialize(uriB, options);
    }
    return uriA === uriB;
}

function escapeComponent(str, options) {
    return str && str.toString().replace(!options || !options.iri ? URI_PROTOCOL.ESCAPE : IRI_PROTOCOL.ESCAPE, pctEncChar);
}

function unescapeComponent(str, options) {
    return str && str.toString().replace(!options || !options.iri ? URI_PROTOCOL.PCT_ENCODED : IRI_PROTOCOL.PCT_ENCODED, pctDecChars);
}

var handler = {
    scheme: "http",
    domainHost: true,
    parse: function parse(components, options) {
        //report missing host
        if (!components.host) {
            components.error = components.error || "HTTP URIs must have a host.";
        }
        return components;
    },
    serialize: function serialize(components, options) {
        //normalize the default port
        if (components.port === (String(components.scheme).toLowerCase() !== "https" ? 80 : 443) || components.port === "") {
            components.port = undefined;
        }
        //normalize the empty path
        if (!components.path) {
            components.path = "/";
        }
        //NOTE: We do not parse query strings for HTTP URIs
        //as WWW Form Url Encoded query strings are part of the HTML4+ spec,
        //and not the HTTP spec.
        return components;
    }
};

var handler$1 = {
    scheme: "https",
    domainHost: handler.domainHost,
    parse: handler.parse,
    serialize: handler.serialize
};

var O = {};
var isIRI = true;
//RFC 3986
var UNRESERVED$$ = "[A-Za-z0-9\\-\\.\\_\\~" + (isIRI ? "\\xA0-\\u200D\\u2010-\\u2029\\u202F-\\uD7FF\\uF900-\\uFDCF\\uFDF0-\\uFFEF" : "") + "]";
var HEXDIG$$ = "[0-9A-Fa-f]"; //case-insensitive
var PCT_ENCODED$ = subexp(subexp("%[EFef]" + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$) + "|" + subexp("%[89A-Fa-f]" + HEXDIG$$ + "%" + HEXDIG$$ + HEXDIG$$) + "|" + subexp("%" + HEXDIG$$ + HEXDIG$$)); //expanded
//RFC 5322, except these symbols as per RFC 6068: @ : / ? # [ ] & ; =
//const ATEXT$$ = "[A-Za-z0-9\\!\\#\\$\\%\\&\\'\\*\\+\\-\\/\\=\\?\\^\\_\\`\\{\\|\\}\\~]";
//const WSP$$ = "[\\x20\\x09]";
//const OBS_QTEXT$$ = "[\\x01-\\x08\\x0B\\x0C\\x0E-\\x1F\\x7F]";  //(%d1-8 / %d11-12 / %d14-31 / %d127)
//const QTEXT$$ = merge("[\\x21\\x23-\\x5B\\x5D-\\x7E]", OBS_QTEXT$$);  //%d33 / %d35-91 / %d93-126 / obs-qtext
//const VCHAR$$ = "[\\x21-\\x7E]";
//const WSP$$ = "[\\x20\\x09]";
//const OBS_QP$ = subexp("\\\\" + merge("[\\x00\\x0D\\x0A]", OBS_QTEXT$$));  //%d0 / CR / LF / obs-qtext
//const FWS$ = subexp(subexp(WSP$$ + "*" + "\\x0D\\x0A") + "?" + WSP$$ + "+");
//const QUOTED_PAIR$ = subexp(subexp("\\\\" + subexp(VCHAR$$ + "|" + WSP$$)) + "|" + OBS_QP$);
//const QUOTED_STRING$ = subexp('\\"' + subexp(FWS$ + "?" + QCONTENT$) + "*" + FWS$ + "?" + '\\"');
var ATEXT$$ = "[A-Za-z0-9\\!\\$\\%\\'\\*\\+\\-\\^\\_\\`\\{\\|\\}\\~]";
var QTEXT$$ = "[\\!\\$\\%\\'\\(\\)\\*\\+\\,\\-\\.0-9\\<\\>A-Z\\x5E-\\x7E]";
var VCHAR$$ = merge(QTEXT$$, "[\\\"\\\\]");
var SOME_DELIMS$$ = "[\\!\\$\\'\\(\\)\\*\\+\\,\\;\\:\\@]";
var UNRESERVED = new RegExp(UNRESERVED$$, "g");
var PCT_ENCODED = new RegExp(PCT_ENCODED$, "g");
var NOT_LOCAL_PART = new RegExp(merge("[^]", ATEXT$$, "[\\.]", '[\\"]', VCHAR$$), "g");
var NOT_HFNAME = new RegExp(merge("[^]", UNRESERVED$$, SOME_DELIMS$$), "g");
var NOT_HFVALUE = NOT_HFNAME;
function decodeUnreserved(str) {
    var decStr = pctDecChars(str);
    return !decStr.match(UNRESERVED) ? str : decStr;
}
var handler$2 = {
    scheme: "mailto",
    parse: function parse$$1(components, options) {
        var mailtoComponents = components;
        var to = mailtoComponents.to = mailtoComponents.path ? mailtoComponents.path.split(",") : [];
        mailtoComponents.path = undefined;
        if (mailtoComponents.query) {
            var unknownHeaders = false;
            var headers = {};
            var hfields = mailtoComponents.query.split("&");
            for (var x = 0, xl = hfields.length; x < xl; ++x) {
                var hfield = hfields[x].split("=");
                switch (hfield[0]) {
                    case "to":
                        var toAddrs = hfield[1].split(",");
                        for (var _x = 0, _xl = toAddrs.length; _x < _xl; ++_x) {
                            to.push(toAddrs[_x]);
                        }
                        break;
                    case "subject":
                        mailtoComponents.subject = unescapeComponent(hfield[1], options);
                        break;
                    case "body":
                        mailtoComponents.body = unescapeComponent(hfield[1], options);
                        break;
                    default:
                        unknownHeaders = true;
                        headers[unescapeComponent(hfield[0], options)] = unescapeComponent(hfield[1], options);
                        break;
                }
            }
            if (unknownHeaders) mailtoComponents.headers = headers;
        }
        mailtoComponents.query = undefined;
        for (var _x2 = 0, _xl2 = to.length; _x2 < _xl2; ++_x2) {
            var addr = to[_x2].split("@");
            addr[0] = unescapeComponent(addr[0]);
            if (!options.unicodeSupport) {
                //convert Unicode IDN -> ASCII IDN
                try {
                    addr[1] = punycode.toASCII(unescapeComponent(addr[1], options).toLowerCase());
                } catch (e) {
                    mailtoComponents.error = mailtoComponents.error || "Email address's domain name can not be converted to ASCII via punycode: " + e;
                }
            } else {
                addr[1] = unescapeComponent(addr[1], options).toLowerCase();
            }
            to[_x2] = addr.join("@");
        }
        return mailtoComponents;
    },
    serialize: function serialize$$1(mailtoComponents, options) {
        var components = mailtoComponents;
        var to = toArray(mailtoComponents.to);
        if (to) {
            for (var x = 0, xl = to.length; x < xl; ++x) {
                var toAddr = String(to[x]);
                var atIdx = toAddr.lastIndexOf("@");
                var localPart = toAddr.slice(0, atIdx).replace(PCT_ENCODED, decodeUnreserved).replace(PCT_ENCODED, toUpperCase).replace(NOT_LOCAL_PART, pctEncChar);
                var domain = toAddr.slice(atIdx + 1);
                //convert IDN via punycode
                try {
                    domain = !options.iri ? punycode.toASCII(unescapeComponent(domain, options).toLowerCase()) : punycode.toUnicode(domain);
                } catch (e) {
                    components.error = components.error || "Email address's domain name can not be converted to " + (!options.iri ? "ASCII" : "Unicode") + " via punycode: " + e;
                }
                to[x] = localPart + "@" + domain;
            }
            components.path = to.join(",");
        }
        var headers = mailtoComponents.headers = mailtoComponents.headers || {};
        if (mailtoComponents.subject) headers["subject"] = mailtoComponents.subject;
        if (mailtoComponents.body) headers["body"] = mailtoComponents.body;
        var fields = [];
        for (var name in headers) {
            if (headers[name] !== O[name]) {
                fields.push(name.replace(PCT_ENCODED, decodeUnreserved).replace(PCT_ENCODED, toUpperCase).replace(NOT_HFNAME, pctEncChar) + "=" + headers[name].replace(PCT_ENCODED, decodeUnreserved).replace(PCT_ENCODED, toUpperCase).replace(NOT_HFVALUE, pctEncChar));
            }
        }
        if (fields.length) {
            components.query = fields.join("&");
        }
        return components;
    }
};

var URN_PARSE = /^([^\:]+)\:(.*)/;
//RFC 2141
var handler$3 = {
    scheme: "urn",
    parse: function parse$$1(components, options) {
        var matches = components.path && components.path.match(URN_PARSE);
        var urnComponents = components;
        if (matches) {
            var scheme = options.scheme || urnComponents.scheme || "urn";
            var nid = matches[1].toLowerCase();
            var nss = matches[2];
            var urnScheme = scheme + ":" + (options.nid || nid);
            var schemeHandler = SCHEMES[urnScheme];
            urnComponents.nid = nid;
            urnComponents.nss = nss;
            urnComponents.path = undefined;
            if (schemeHandler) {
                urnComponents = schemeHandler.parse(urnComponents, options);
            }
        } else {
            urnComponents.error = urnComponents.error || "URN can not be parsed.";
        }
        return urnComponents;
    },
    serialize: function serialize$$1(urnComponents, options) {
        var scheme = options.scheme || urnComponents.scheme || "urn";
        var nid = urnComponents.nid;
        var urnScheme = scheme + ":" + (options.nid || nid);
        var schemeHandler = SCHEMES[urnScheme];
        if (schemeHandler) {
            urnComponents = schemeHandler.serialize(urnComponents, options);
        }
        var uriComponents = urnComponents;
        var nss = urnComponents.nss;
        uriComponents.path = (nid || options.nid) + ":" + nss;
        return uriComponents;
    }
};

var UUID = /^[0-9A-Fa-f]{8}(?:\-[0-9A-Fa-f]{4}){3}\-[0-9A-Fa-f]{12}$/;
//RFC 4122
var handler$4 = {
    scheme: "urn:uuid",
    parse: function parse(urnComponents, options) {
        var uuidComponents = urnComponents;
        uuidComponents.uuid = uuidComponents.nss;
        uuidComponents.nss = undefined;
        if (!options.tolerant && (!uuidComponents.uuid || !uuidComponents.uuid.match(UUID))) {
            uuidComponents.error = uuidComponents.error || "UUID is not valid.";
        }
        return uuidComponents;
    },
    serialize: function serialize(uuidComponents, options) {
        var urnComponents = uuidComponents;
        //normalize UUID
        urnComponents.nss = (uuidComponents.uuid || "").toLowerCase();
        return urnComponents;
    }
};

SCHEMES[handler.scheme] = handler;
SCHEMES[handler$1.scheme] = handler$1;
SCHEMES[handler$2.scheme] = handler$2;
SCHEMES[handler$3.scheme] = handler$3;
SCHEMES[handler$4.scheme] = handler$4;

exports.SCHEMES = SCHEMES;
exports.pctEncChar = pctEncChar;
exports.pctDecChars = pctDecChars;
exports.parse = parse;
exports.removeDotSegments = removeDotSegments;
exports.serialize = serialize;
exports.resolveComponents = resolveComponents;
exports.resolve = resolve;
exports.normalize = normalize;
exports.equal = equal;
exports.escapeComponent = escapeComponent;
exports.unescapeComponent = unescapeComponent;

Object.defineProperty(exports, '__esModule', { value: true });

})));
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