update

node_modules/mdurl/CHANGELOG.md

@@ -0,0 +1,16 @@
+1.0.1 / 2015-09-15
+------------------
+
+- Fixed closure compiler compatibility (#1).
+
+
+1.0.0 / 2015-03-04
+------------------
+
+- Added `.decode()`, `.parse()`, `.format()`.
+
+
+0.0.1 / 2015-03-02
+------------------
+
+- First release.

node_modules/mdurl/LICENSE

@@ -0,0 +1,45 @@
+Copyright (c) 2015 Vitaly Puzrin, Alex Kocharin.
+
+Permission is hereby granted, free of charge, to any person
+obtaining a copy of this software and associated documentation
+files (the "Software"), to deal in the Software without
+restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the
+Software is furnished to do so, subject to the following
+conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
+OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
+HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
+WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+OTHER DEALINGS IN THE SOFTWARE.
+
+--------------------------------------------------------------------------------
+
+.parse() is based on Joyent's node.js `url` code:
+
+Copyright Joyent, Inc. and other Node contributors. All rights reserved.
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to
+deal in the Software without restriction, including without limitation the
+rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+sell copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+IN THE SOFTWARE.

node_modules/mdurl/README.md

@@ -0,0 +1,102 @@
+# mdurl
+
+[![Build Status](https://img.shields.io/travis/markdown-it/mdurl/master.svg?style=flat)](https://travis-ci.org/markdown-it/mdurl)
+[![NPM version](https://img.shields.io/npm/v/mdurl.svg?style=flat)](https://www.npmjs.org/package/mdurl)
+
+> URL utilities for [markdown-it](https://github.com/markdown-it/markdown-it) parser.
+
+
+## API
+
+### .encode(str [, exclude, keepEncoded]) -> String
+
+Percent-encode a string, avoiding double encoding. Don't touch `/a-zA-Z0-9/` +
+excluded chars + `/%[a-fA-F0-9]{2}/` (if not disabled). Broken surrorates are
+replaced with `U+FFFD`.
+
+Params:
+
+- __str__ - input string.
+- __exclude__ - optional, `;/?:@&=+$,-_.!~*'()#`. Additional chars to keep intact
+  (except `/a-zA-Z0-9/`).
+- __keepEncoded__ - optional, `true`. By default it skips already encoded sequences
+  (`/%[a-fA-F0-9]{2}/`). If set to `false`, `%` will be encoded.
+
+
+### encode.defaultChars, encode.componentChars
+
+You can use these constants as second argument to `encode` function.
+
+ - `encode.defaultChars` is the same exclude set as in the standard `encodeURI()` function
+ - `encode.componentChars` is the same exclude set as in the `encodeURIComponent()` function
+
+For example, `encode('something', encode.componentChars, true)` is roughly the equivalent of
+the `encodeURIComponent()` function (except `encode()` doesn't throw).
+
+
+### .decode(str [, exclude]) -> String
+
+Decode percent-encoded string. Invalid percent-encoded sequences (e.g. `%2G`)
+are left as is. Invalid UTF-8 characters are replaced with `U+FFFD`.
+
+
+Params:
+
+- __str__ - input string.
+- __exclude__ - set of characters to leave encoded, optional, `;/?:@&=+$,#`.
+
+
+### decode.defaultChars, decode.componentChars
+
+You can use these constants as second argument to `decode` function.
+
+ - `decode.defaultChars` is the same exclude set as in the standard `decodeURI()` function
+ - `decode.componentChars` is the same exclude set as in the `decodeURIComponent()` function
+
+For example, `decode('something', decode.defaultChars)` has the same behavior as
+`decodeURI('something')` on a correctly encoded input.
+
+
+### .parse(url, slashesDenoteHost) -> urlObs
+
+Parse url string. Similar to node's [url.parse](http://nodejs.org/api/url.html#url_url_parse_urlstr_parsequerystring_slashesdenotehost), but without any
+normalizations and query string parse.
+
+ - __url__ - input url (string)
+ - __slashesDenoteHost__ - if url starts with `//`, expect a hostname after it. Optional, `false`.
+
+Result (hash):
+
+- protocol
+- slashes
+- auth
+- port
+- hostname
+- hash
+- search
+- pathname
+
+Difference with node's `url`:
+
+1. No leading slash in paths, e.g. in `url.parse('http://foo?bar')` pathname is
+   ``, not `/`
+2. Backslashes are not replaced with slashes, so `http:\\example.org\` is
+   treated like a relative path
+3. Trailing colon is treated like a part of the path, i.e. in
+   `http://example.org:foo` pathname is `:foo`
+4. Nothing is URL-encoded in the resulting object, (in joyent/node some chars
+   in auth and paths are encoded)
+5. `url.parse()` does not have `parseQueryString` argument
+6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
+   which can be constructed using other parts of the url.
+
+
+### .format(urlObject)
+
+Format an object previously obtained with `.parse()` function. Similar to node's
+[url.format](http://nodejs.org/api/url.html#url_url_format_urlobj).
+
+
+## License
+
+[MIT](https://github.com/markdown-it/mdurl/blob/master/LICENSE)

node_modules/mdurl/decode.js

@@ -0,0 +1,122 @@
+
+'use strict';
+
+
+/* eslint-disable no-bitwise */
+
+var decodeCache = {};
+
+function getDecodeCache(exclude) {
+  var i, ch, cache = decodeCache[exclude];
+  if (cache) { return cache; }
+
+  cache = decodeCache[exclude] = [];
+
+  for (i = 0; i < 128; i++) {
+    ch = String.fromCharCode(i);
+    cache.push(ch);
+  }
+
+  for (i = 0; i < exclude.length; i++) {
+    ch = exclude.charCodeAt(i);
+    cache[ch] = '%' + ('0' + ch.toString(16).toUpperCase()).slice(-2);
+  }
+
+  return cache;
+}
+
+
+// Decode percent-encoded string.
+//
+function decode(string, exclude) {
+  var cache;
+
+  if (typeof exclude !== 'string') {
+    exclude = decode.defaultChars;
+  }
+
+  cache = getDecodeCache(exclude);
+
+  return string.replace(/(%[a-f0-9]{2})+/gi, function(seq) {
+    var i, l, b1, b2, b3, b4, chr,
+        result = '';
+
+    for (i = 0, l = seq.length; i < l; i += 3) {
+      b1 = parseInt(seq.slice(i + 1, i + 3), 16);
+
+      if (b1 < 0x80) {
+        result += cache[b1];
+        continue;
+      }
+
+      if ((b1 & 0xE0) === 0xC0 && (i + 3 < l)) {
+        // 110xxxxx 10xxxxxx
+        b2 = parseInt(seq.slice(i + 4, i + 6), 16);
+
+        if ((b2 & 0xC0) === 0x80) {
+          chr = ((b1 << 6) & 0x7C0) | (b2 & 0x3F);
+
+          if (chr < 0x80) {
+            result += '\ufffd\ufffd';
+          } else {
+            result += String.fromCharCode(chr);
+          }
+
+          i += 3;
+          continue;
+        }
+      }
+
+      if ((b1 & 0xF0) === 0xE0 && (i + 6 < l)) {
+        // 1110xxxx 10xxxxxx 10xxxxxx
+        b2 = parseInt(seq.slice(i + 4, i + 6), 16);
+        b3 = parseInt(seq.slice(i + 7, i + 9), 16);
+
+        if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80) {
+          chr = ((b1 << 12) & 0xF000) | ((b2 << 6) & 0xFC0) | (b3 & 0x3F);
+
+          if (chr < 0x800 || (chr >= 0xD800 && chr <= 0xDFFF)) {
+            result += '\ufffd\ufffd\ufffd';
+          } else {
+            result += String.fromCharCode(chr);
+          }
+
+          i += 6;
+          continue;
+        }
+      }
+
+      if ((b1 & 0xF8) === 0xF0 && (i + 9 < l)) {
+        // 111110xx 10xxxxxx 10xxxxxx 10xxxxxx
+        b2 = parseInt(seq.slice(i + 4, i + 6), 16);
+        b3 = parseInt(seq.slice(i + 7, i + 9), 16);
+        b4 = parseInt(seq.slice(i + 10, i + 12), 16);
+
+        if ((b2 & 0xC0) === 0x80 && (b3 & 0xC0) === 0x80 && (b4 & 0xC0) === 0x80) {
+          chr = ((b1 << 18) & 0x1C0000) | ((b2 << 12) & 0x3F000) | ((b3 << 6) & 0xFC0) | (b4 & 0x3F);
+
+          if (chr < 0x10000 || chr > 0x10FFFF) {
+            result += '\ufffd\ufffd\ufffd\ufffd';
+          } else {
+            chr -= 0x10000;
+            result += String.fromCharCode(0xD800 + (chr >> 10), 0xDC00 + (chr & 0x3FF));
+          }
+
+          i += 9;
+          continue;
+        }
+      }
+
+      result += '\ufffd';
+    }
+
+    return result;
+  });
+}
+
+
+decode.defaultChars   = ';/?:@&=+$,#';
+decode.componentChars = '';
+
+
+module.exports = decode;

node_modules/mdurl/encode.js

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+
+'use strict';
+
+
+var encodeCache = {};
+
+
+// Create a lookup array where anything but characters in `chars` string
+// and alphanumeric chars is percent-encoded.
+//
+function getEncodeCache(exclude) {
+  var i, ch, cache = encodeCache[exclude];
+  if (cache) { return cache; }
+
+  cache = encodeCache[exclude] = [];
+
+  for (i = 0; i < 128; i++) {
+    ch = String.fromCharCode(i);
+
+    if (/^[0-9a-z]$/i.test(ch)) {
+      // always allow unencoded alphanumeric characters
+      cache.push(ch);
+    } else {
+      cache.push('%' + ('0' + i.toString(16).toUpperCase()).slice(-2));
+    }
+  }
+
+  for (i = 0; i < exclude.length; i++) {
+    cache[exclude.charCodeAt(i)] = exclude[i];
+  }
+
+  return cache;
+}
+
+
+// Encode unsafe characters with percent-encoding, skipping already
+// encoded sequences.
+//
+//  - string       - string to encode
+//  - exclude      - list of characters to ignore (in addition to a-zA-Z0-9)
+//  - keepEscaped  - don't encode '%' in a correct escape sequence (default: true)
+//
+function encode(string, exclude, keepEscaped) {
+  var i, l, code, nextCode, cache,
+      result = '';
+
+  if (typeof exclude !== 'string') {
+    // encode(string, keepEscaped)
+    keepEscaped  = exclude;
+    exclude = encode.defaultChars;
+  }
+
+  if (typeof keepEscaped === 'undefined') {
+    keepEscaped = true;
+  }
+
+  cache = getEncodeCache(exclude);
+
+  for (i = 0, l = string.length; i < l; i++) {
+    code = string.charCodeAt(i);
+
+    if (keepEscaped && code === 0x25 /* % */ && i + 2 < l) {
+      if (/^[0-9a-f]{2}$/i.test(string.slice(i + 1, i + 3))) {
+        result += string.slice(i, i + 3);
+        i += 2;
+        continue;
+      }
+    }
+
+    if (code < 128) {
+      result += cache[code];
+      continue;
+    }
+
+    if (code >= 0xD800 && code <= 0xDFFF) {
+      if (code >= 0xD800 && code <= 0xDBFF && i + 1 < l) {
+        nextCode = string.charCodeAt(i + 1);
+        if (nextCode >= 0xDC00 && nextCode <= 0xDFFF) {
+          result += encodeURIComponent(string[i] + string[i + 1]);
+          i++;
+          continue;
+        }
+      }
+      result += '%EF%BF%BD';
+      continue;
+    }
+
+    result += encodeURIComponent(string[i]);
+  }
+
+  return result;
+}
+
+encode.defaultChars   = ";/?:@&=+$,-_.!~*'()#";
+encode.componentChars = "-_.!~*'()";
+
+
+module.exports = encode;

node_modules/mdurl/format.js

@@ -0,0 +1,25 @@
+
+'use strict';
+
+
+module.exports = function format(url) {
+  var result = '';
+
+  result += url.protocol || '';
+  result += url.slashes ? '//' : '';
+  result += url.auth ? url.auth + '@' : '';
+
+  if (url.hostname && url.hostname.indexOf(':') !== -1) {
+    // ipv6 address
+    result += '[' + url.hostname + ']';
+  } else {
+    result += url.hostname || '';
+  }
+
+  result += url.port ? ':' + url.port : '';
+  result += url.pathname || '';
+  result += url.search || '';
+  result += url.hash || '';
+
+  return result;
+};

node_modules/mdurl/index.js

@@ -0,0 +1,7 @@
+'use strict';
+
+
+module.exports.encode = require('./encode');
+module.exports.decode = require('./decode');
+module.exports.format = require('./format');
+module.exports.parse  = require('./parse');

node_modules/mdurl/package.json

@@ -0,0 +1,51 @@
+{
+  "_args": [
+    [
+      "mdurl@1.0.1",
+      "/Users/tatiana/selfdefined"
+    ]
+  ],
+  "_from": "mdurl@1.0.1",
+  "_id": "mdurl@1.0.1",
+  "_inBundle": false,
+  "_integrity": "sha1-/oWy7HWlkDfyrf7BAP1sYBdhFS4=",
+  "_location": "/mdurl",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "mdurl@1.0.1",
+    "name": "mdurl",
+    "escapedName": "mdurl",
+    "rawSpec": "1.0.1",
+    "saveSpec": null,
+    "fetchSpec": "1.0.1"
+  },
+  "_requiredBy": [
+    "/markdown-it"
+  ],
+  "_resolved": "https://registry.npmjs.org/mdurl/-/mdurl-1.0.1.tgz",
+  "_spec": "1.0.1",
+  "_where": "/Users/tatiana/selfdefined",
+  "bugs": {
+    "url": "https://github.com/markdown-it/mdurl/issues"
+  },
+  "description": "URL utilities for markdown-it",
+  "devDependencies": {
+    "eslint": "0.13.0",
+    "eslint-plugin-nodeca": "^1.0.0",
+    "istanbul": "*",
+    "mocha": "*"
+  },
+  "homepage": "https://github.com/markdown-it/mdurl#readme",
+  "license": "MIT",
+  "name": "mdurl",
+  "repository": {
+    "type": "git",
+    "url": "git+https://github.com/markdown-it/mdurl.git"
+  },
+  "scripts": {
+    "test": "make test"
+  },
+  "version": "1.0.1"
+}

node_modules/mdurl/parse.js

@@ -0,0 +1,312 @@
+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+'use strict';
+
+//
+// Changes from joyent/node:
+//
+// 1. No leading slash in paths,
+//    e.g. in `url.parse('http://foo?bar')` pathname is ``, not `/`
+//
+// 2. Backslashes are not replaced with slashes,
+//    so `http:\\example.org\` is treated like a relative path
+//
+// 3. Trailing colon is treated like a part of the path,
+//    i.e. in `http://example.org:foo` pathname is `:foo`
+//
+// 4. Nothing is URL-encoded in the resulting object,
+//    (in joyent/node some chars in auth and paths are encoded)
+//
+// 5. `url.parse()` does not have `parseQueryString` argument
+//
+// 6. Removed extraneous result properties: `host`, `path`, `query`, etc.,
+//    which can be constructed using other parts of the url.
+//
+
+
+function Url() {
+  this.protocol = null;
+  this.slashes = null;
+  this.auth = null;
+  this.port = null;
+  this.hostname = null;
+  this.hash = null;
+  this.search = null;
+  this.pathname = null;
+}
+
+// Reference: RFC 3986, RFC 1808, RFC 2396
+
+// define these here so at least they only have to be
+// compiled once on the first module load.
+var protocolPattern = /^([a-z0-9.+-]+:)/i,
+    portPattern = /:[0-9]*$/,
+
+    // Special case for a simple path URL
+    simplePathPattern = /^(\/\/?(?!\/)[^\?\s]*)(\?[^\s]*)?$/,
+
+    // RFC 2396: characters reserved for delimiting URLs.
+    // We actually just auto-escape these.
+    delims = [ '<', '>', '"', '`', ' ', '\r', '\n', '\t' ],
+
+    // RFC 2396: characters not allowed for various reasons.
+    unwise = [ '{', '}', '|', '\\', '^', '`' ].concat(delims),
+
+    // Allowed by RFCs, but cause of XSS attacks.  Always escape these.
+    autoEscape = [ '\'' ].concat(unwise),
+    // Characters that are never ever allowed in a hostname.
+    // Note that any invalid chars are also handled, but these
+    // are the ones that are *expected* to be seen, so we fast-path
+    // them.
+    nonHostChars = [ '%', '/', '?', ';', '#' ].concat(autoEscape),
+    hostEndingChars = [ '/', '?', '#' ],
+    hostnameMaxLen = 255,
+    hostnamePartPattern = /^[+a-z0-9A-Z_-]{0,63}$/,
+    hostnamePartStart = /^([+a-z0-9A-Z_-]{0,63})(.*)$/,
+    // protocols that can allow "unsafe" and "unwise" chars.
+    /* eslint-disable no-script-url */
+    // protocols that never have a hostname.
+    hostlessProtocol = {
+      'javascript': true,
+      'javascript:': true
+    },
+    // protocols that always contain a // bit.
+    slashedProtocol = {
+      'http': true,
+      'https': true,
+      'ftp': true,
+      'gopher': true,
+      'file': true,
+      'http:': true,
+      'https:': true,
+      'ftp:': true,
+      'gopher:': true,
+      'file:': true
+    };
+    /* eslint-enable no-script-url */
+
+function urlParse(url, slashesDenoteHost) {
+  if (url && url instanceof Url) { return url; }
+
+  var u = new Url();
+  u.parse(url, slashesDenoteHost);
+  return u;
+}
+
+Url.prototype.parse = function(url, slashesDenoteHost) {
+  var i, l, lowerProto, hec, slashes,
+      rest = url;
+
+  // trim before proceeding.
+  // This is to support parse stuff like "  http://foo.com  \n"
+  rest = rest.trim();
+
+  if (!slashesDenoteHost && url.split('#').length === 1) {
+    // Try fast path regexp
+    var simplePath = simplePathPattern.exec(rest);
+    if (simplePath) {
+      this.pathname = simplePath[1];
+      if (simplePath[2]) {
+        this.search = simplePath[2];
+      }
+      return this;
+    }
+  }
+
+  var proto = protocolPattern.exec(rest);
+  if (proto) {
+    proto = proto[0];
+    lowerProto = proto.toLowerCase();
+    this.protocol = proto;
+    rest = rest.substr(proto.length);
+  }
+
+  // figure out if it's got a host
+  // user@server is *always* interpreted as a hostname, and url
+  // resolution will treat //foo/bar as host=foo,path=bar because that's
+  // how the browser resolves relative URLs.
+  if (slashesDenoteHost || proto || rest.match(/^\/\/[^@\/]+@[^@\/]+/)) {
+    slashes = rest.substr(0, 2) === '//';
+    if (slashes && !(proto && hostlessProtocol[proto])) {
+      rest = rest.substr(2);
+      this.slashes = true;
+    }
+  }
+
+  if (!hostlessProtocol[proto] &&
+      (slashes || (proto && !slashedProtocol[proto]))) {
+
+    // there's a hostname.
+    // the first instance of /, ?, ;, or # ends the host.
+    //
+    // If there is an @ in the hostname, then non-host chars *are* allowed
+    // to the left of the last @ sign, unless some host-ending character
+    // comes *before* the @-sign.
+    // URLs are obnoxious.
+    //
+    // ex:
+    // http://a@b@c/ => user:a@b host:c
+    // http://a@b?@c => user:a host:c path:/?@c
+
+    // v0.12 TODO(isaacs): This is not quite how Chrome does things.
+    // Review our test case against browsers more comprehensively.
+
+    // find the first instance of any hostEndingChars
+    var hostEnd = -1;
+    for (i = 0; i < hostEndingChars.length; i++) {
+      hec = rest.indexOf(hostEndingChars[i]);
+      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
+        hostEnd = hec;
+      }
+    }
+
+    // at this point, either we have an explicit point where the
+    // auth portion cannot go past, or the last @ char is the decider.
+    var auth, atSign;
+    if (hostEnd === -1) {
+      // atSign can be anywhere.
+      atSign = rest.lastIndexOf('@');
+    } else {
+      // atSign must be in auth portion.
+      // http://a@b/c@d => host:b auth:a path:/c@d
+      atSign = rest.lastIndexOf('@', hostEnd);
+    }
+
+    // Now we have a portion which is definitely the auth.
+    // Pull that off.
+    if (atSign !== -1) {
+      auth = rest.slice(0, atSign);
+      rest = rest.slice(atSign + 1);
+      this.auth = auth;
+    }
+
+    // the host is the remaining to the left of the first non-host char
+    hostEnd = -1;
+    for (i = 0; i < nonHostChars.length; i++) {
+      hec = rest.indexOf(nonHostChars[i]);
+      if (hec !== -1 && (hostEnd === -1 || hec < hostEnd)) {
+        hostEnd = hec;
+      }
+    }
+    // if we still have not hit it, then the entire thing is a host.
+    if (hostEnd === -1) {
+      hostEnd = rest.length;
+    }
+
+    if (rest[hostEnd - 1] === ':') { hostEnd--; }
+    var host = rest.slice(0, hostEnd);
+    rest = rest.slice(hostEnd);
+
+    // pull out port.
+    this.parseHost(host);
+
+    // we've indicated that there is a hostname,
+    // so even if it's empty, it has to be present.
+    this.hostname = this.hostname || '';
+
+    // if hostname begins with [ and ends with ]
+    // assume that it's an IPv6 address.
+    var ipv6Hostname = this.hostname[0] === '[' &&
+        this.hostname[this.hostname.length - 1] === ']';
+
+    // validate a little.
+    if (!ipv6Hostname) {
+      var hostparts = this.hostname.split(/\./);
+      for (i = 0, l = hostparts.length; i < l; i++) {
+        var part = hostparts[i];
+        if (!part) { continue; }
+        if (!part.match(hostnamePartPattern)) {
+          var newpart = '';
+          for (var j = 0, k = part.length; j < k; j++) {
+            if (part.charCodeAt(j) > 127) {
+              // we replace non-ASCII char with a temporary placeholder
+              // we need this to make sure size of hostname is not
+              // broken by replacing non-ASCII by nothing
+              newpart += 'x';
+            } else {
+              newpart += part[j];
+            }
+          }
+          // we test again with ASCII char only
+          if (!newpart.match(hostnamePartPattern)) {
+            var validParts = hostparts.slice(0, i);
+            var notHost = hostparts.slice(i + 1);
+            var bit = part.match(hostnamePartStart);
+            if (bit) {
+              validParts.push(bit[1]);
+              notHost.unshift(bit[2]);
+            }
+            if (notHost.length) {
+              rest = notHost.join('.') + rest;
+            }
+            this.hostname = validParts.join('.');
+            break;
+          }
+        }
+      }
+    }
+
+    if (this.hostname.length > hostnameMaxLen) {
+      this.hostname = '';
+    }
+
+    // strip [ and ] from the hostname
+    // the host field still retains them, though
+    if (ipv6Hostname) {
+      this.hostname = this.hostname.substr(1, this.hostname.length - 2);
+    }
+  }
+
+  // chop off from the tail first.
+  var hash = rest.indexOf('#');
+  if (hash !== -1) {
+    // got a fragment string.
+    this.hash = rest.substr(hash);
+    rest = rest.slice(0, hash);
+  }
+  var qm = rest.indexOf('?');
+  if (qm !== -1) {
+    this.search = rest.substr(qm);
+    rest = rest.slice(0, qm);
+  }
+  if (rest) { this.pathname = rest; }
+  if (slashedProtocol[lowerProto] &&
+      this.hostname && !this.pathname) {
+    this.pathname = '';
+  }
+
+  return this;
+};
+
+Url.prototype.parseHost = function(host) {
+  var port = portPattern.exec(host);
+  if (port) {
+    port = port[0];
+    if (port !== ':') {
+      this.port = port.substr(1);
+    }
+    host = host.substr(0, host.length - port.length);
+  }
+  if (host) { this.hostname = host; }
+};
+
+module.exports = urlParse;