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Title:
RSS Panel X

Date Added:
2007-05-28 00:45:18
Installs:
498
Description:
Displays RSS, Atom, hAtom and OPML directly from originating website

by Benjamin C. Wiley Sittler, based on work by Johannes la Poutré and CommerceNet Consortium, LLC

RSS Panel X is a RSS/Atom/hAtom/OPML reader for Greasemonkey based on version 2.01 of Johannes la Poutré's excellent RSS Panel.

RSS Panel X has the following features:

* Displays feeds assocated with the webpage you're viewing. Supports several formats:
o hAtom 0.1 in HTML and XHTML,
o Atom 1.0 XML,
o RSS 0.9x, 1.0, and 2.0 XML, and
o OPML 1.0 XML.
* Works as a user script:
o Using Greasemonkey in Firefox and Flock,
o Using a modified Greasemonkey and xSidebar in SeaMonkey,
o Using Konqueror Userscript in Konqueror,
o As an Opera User JavaScript,
o Using Creammonkey in Safari, and
o Using Reify Turnabout Advanced or IE7Pro in Internet Explorer.
* Works as a bookmarklet in Firefox, Konqueror (as a Minitools bookmarklet), Shiira, K-Meleon (as a bookmarklet and as a same-layer hotlink), Safari, Opera, OmniWeb, and Internet Explorer (as a favelet.)
* Converts HTML and XHTML markup to plain text for readable display.
* Panel colors are selected based on page hostname.

RSS Panel X is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.
Preview of RSS Panel X
View script source of RSS Panel X
/* vim: ts=4 noet ai :
   -*- coding: utf-8 -*-

   RSS Panel X - RSS/Atom/hAtom/OPML Reader for Greasemonkey
   Copyright 2006 - 2007  Benjamin C. Wiley Sittler
   Copyright 2005, 2006  Johannes la Poutre
   Portions Copyright 2004 - 2006  CommerceNet Consortium, LLC

   This program is free software; you can redistribute it and/or
   modify it under the terms of the GNU General Public License
   as published by the Free Software Foundation; either version 2
   of the License, or (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA

   Contact Information:

   Benjamin C. Wiley Sittler
   E-mail: bsittler@gmail.com
   5919 Central Ave
   El Cerrito, CA 94530
   U.S.A.

*/
/*

  Works with RSS versions 0.91 .. 2.0, Atom 0.3 .. 1.0, hAtom 0.1, and OPML 1.0

  Changelog:

  version 2.01-bsittler12 (experimental)
  - rel="service.feed"
  - work around namespaced node creation failures in ie6 and below
  - allow missing rel attribute in atom link element
  - fall back to non-empty innerText when no child nodes are present
  - menu item "Autodetect+" which also supports <a rel="alternate" href="...">...</a>
  - allow null namespace for RSS elements in RDF, as caused by MoinMoin bug in pre-2.4 Python

  version 2.01-bsittler11 (experimental)
  - fix cascade bug seen on frameset pages (gmail, etc.)

  version 2.01-bsittler10 (experimental)
  - text/xml+opml
  - some DOAP and Semantic MediaWiki support
  - bugfix for occasional "missing" feeds

  version 2.01-bsittler9 (experimental)
  - support rel="outline" (sometimes used for OPML)

  version 2.01-bsittler8 (experimental)
  - work around for a Firebug crash (disable RSS Panel X for file:* URI pattern)
  - fix bug in UTF-8 decoder

  version 2.01-bsittler7 (experimental)
  - remap C1 control characters according to CP1252/Mac assignments
  - rewrote HTML parser
  - partial support for RDF ( http://www.w3.org/RDF/ )
  - partial support for FOAF ( http://xmlns.com/foaf/0.1/ )
  - added root element namespace-based format detection

  version 2.01-bsittler6 (experimental)
  - workarounds for OmniWeb event handling bugs
  - handles feeds incorrectly delivered as HTML in Firefox 1.x
  - added an Accept header with a list of supported media types

  version 2.01-bsittler5 (experimental)
  - support for OPML 1.0 ( http://www.opml.org/ )
  - support for RSS 1.0 with mod_enclosure ( http://www.xs4all.nl/~foz/mod_enclosure.html )
  - plays nicely with the Firefox 2.0 feed reader
  - workarounds for various MSIE rendering bugs

  version 2.01-bsittler4 (experimental)
  - added key accelerators (Alt+R and Alt+Shift+R) -- but they don't
  work for me in Greasemonkey 0.6.6.20061017.0 (tested in Firefox
  1.5 and 2.0rc3)
  * &RSS Panel X Autodetect = Alt+R
  * RSS Panel X &for this feed = Alt+Shift+R
  * About RSS Panel &X
  suggested by Mysteriously Nameless User ( http://userscripts.org/people/1976 )
  apparently similar to an unreleased version by Desert Fox ( http://userscripts.org/people/552 )
  - changed namespace again ( http://zoehep.xent.com/~bsittler/rsspanel.html )
  suggested by Mysteriously Nameless User ( http://userscripts.org/people/1976 )
  - new homepage ( http://zoehep.xent.com/~bsittler/rsspanel.html )
  - the bookmarklet now works as a Konqueror Minitool for RSS, Atom and hAtom feeds

  version 2.01-bsittler3 (experimental)
  - now works in Safari with Creammonkey 0.7 ( http://8-p.info/Creammonkey/ )
  - now listed on userscripts.org ( http://userscripts.org/scripts/show/6073 )

  version 2.01-bsittler2 (experimental)
  - now it's called "RSS Panel X" (i.e. "eXperimental" RSS Panel)
  - better overflow handling in Opera and MSIE
  - switched namespace to avoid collisions
  - repointed update URL to avoid spamming someone else w/my bugs
  - generated a new GUID for Greasemonkey Compiler
  http://www.letitblog.com/greasemonkey-compiler/
  - GUID: {79067fdd-38db-8dee-6a6a-94814903ca7e}
  - unofficial version by "Benjamin C. Wiley Sittler"

  version 2.01-bsittler1 (experimental)
  - duplicate feeds are suppressed ( < img alt="..." / > is not handled uniformly, though)
  - hAtom 0.1 support ( http://microformats.org/wiki/hatom )
  - Atom 1.0 support ( http://atomenabled.org/ )
  - multi-feed support
  - tested as GM, Opera and Turnabout user scripts, and as plain .js
  - new GM menu items for panel redisplay and feed reading
  - unofficial version by "Benjamin C. Wiley Sittler"

  version 2.01
  - minor tweak to fix compatibility with Safari 2.0.x and possible
  problems with other browsers as well.

  version 2.00
  - compatibility with Firefox 1.5 and GM 0.6.4 (release candidate)
  - enhanced security model: used XPCNativeWrapper to access
  native DOMParser object
  - added "check for updates" functionality; had to remove
  top level wrapper function to do this in a clean way.
  - Fix: apparently GM_XmlhttpRequest now needs fully qualified url.
  - reset margin on divs (some CSS sheets define a non zero value for
  every plain div, don's ask me why).
  - replace missing title and links with 'Untitled item #X" and
  #RSS_MISSING_LINK respectively.

  Version 1.18
  - fix for Firefox 1.5x; all events implemented in a W3C compliant way.
  Some code taken from "DOM-Drag" by Aaron Boodman, 2001
  http://www.youngpup.net/2001/domdrag
  Final version from Book Burro:
  http://www.lysator.liu.se/~jhs/userscript/bookburro/0.16.user.js

  Version 1.17
  - work around for Turnabout where GM_XmlhttpRequest returns
  resultXML as text string (= alias for resultText), Aaargh!
  - minor design tweaks for MSIE's CSS box model
  NOTE:
  - XMLHttpRequest is still very fragile under Turnabout ;-(

  Version 1.16
  - minor fixes to restore MSIE compatibility
  Welcome back, turnabout users!
  - fix with GM_log
  - call document as property of window (global) object
  (waiting for new GM version)

  Version 1.15
  - use GM_xmlhttpRequest() if available (GM 0.2.6+):
  loads any RSS feed, regardless of originating domain
  this means for instance that feedburner feeds are working.

  Version 1.14
  - logging through GM_Log if available (GM 0.3.3+)
  - namespace now points at the script's home page

  Version 1.13
  - fix for RSS feeds missing elements
  Thanks to Andy Dustman for hhis patch.

  Version 1.12
  - fix character encoding again (pure ASCII)

  Version 1.11
  - minior fix with character encoding (UTF-8)
  - generated GUID for Greasemonkey Compiler
  http://www.letitblog.com/greasemonkey-compiler/
  - GUID: {821ac008-72db-4ccd-94b9-722ccba5b28a}

  Version 1.10
  - Changed license to GPL
  Added by Brandan Lloyd:
  - Added title bar to make it draggable,
  - Allow the user to double-click to open and close so that
  clicking on a link doesn't toggle the view state,
  - Added a little icon for opening and with a single-click,
  - Added a scroll bar so that if the Reader is longer
  than the page the user can scroll.

  Version 1.03
  - Added a link to the discovered RSS feed (suggested by Nathan Howell)

  Version 1.02
  - Moved link to RSS home to mottom of list (suggested by Neil Kandalgaonkar)

  Version 1.01
  - Initial release

*/

// ==UserScript==
// @name                  RSS Panel X
// @namespace    http://zoehep.xent.com/~bsittler/rsspanel.html
// @description   Displays RSS, Atom, hAtom and OPML directly from originating website
// @include        *
// @exclude        file:*
// ==/UserScript==

(function(window, targetURI, scriptURI) {
    var isKHTML = navigator.userAgent.indexOf('KHTML') != -1;
    var isOpera = (typeof (window.opera) != 'undefined') && ! isKHTML;
    var isAppleWebKit = navigator.userAgent.indexOf('AppleWebKit') != -1;
    var isOmniWeb = navigator.userAgent.indexOf('OmniWeb') != -1;
    var isMSIE = navigator.userAgent.indexOf('MSIE') != -1;
    var isGecko = (navigator.userAgent.indexOf('Gecko') != -1) && ! isKHTML && ! isOpera;

    var bugScopingIsBroken = isKHTML && ! isAppleWebKit;
    var bugAttributesUndecodedInXHTML = isOpera;
    var bugEventListenersAreBroken = isOpera || (isAppleWebKit && isOmniWeb);
    var bugAttachEventIsBroken = isAppleWebKit && isOmniWeb;
    /*@cc_on
      /*@if (@_jscript_version >= 5.7) // MSIE 7
      var bugPositionFixedIsIgnored = false;
      @else @*/
    var bugPositionFixedIsIgnored = isMSIE;
    /*@end
      @*/

    // needed to overcome Konqueror scoping bugs
    var xparseInt = ((typeof(parseInt) != 'undefined') && ! bugScopingIsBroken) ? function(s){return parseInt(s);} : function(s){return window.parseInt(s);};
    var xisNaN = ((typeof(isNaN) != 'undefined') && ! bugScopingIsBroken) ? function(n){return isNaN(n);} : function(n){return window.isNaN(n);};
    var xescape = ((typeof(escape) != 'undefined') && ! bugScopingIsBroken) ? function(s){return escape(s);} : function(s){return window.escape(s);};
    var xunescape = ((typeof(unescape) != 'undefined') && ! bugScopingIsBroken) ? function(s){return unescape(s);} : function(s){return window.unescape(s);};
    var xencodeURIComponent = ((typeof(encodeURIComponent) != 'undefined') && ! bugScopingIsBroken) ? function(s){return encodeURIComponent(s);} : function(s){return window.encodeURIComponent(s);};
    var xdecodeURIComponent = ((typeof(decodeURIComponent) != 'undefined') && ! bugScopingIsBroken) ? function(s){return decodeURIComponent(s);} : function(s){return window.decodeURIComponent(s);};
    var xfromCharCode = ((typeof(String) != 'undefined') && ! bugScopingIsBroken) ? function(c){return String.fromCharCode(c);} : function(c){return window.String.fromCharCode(c);};
    var xnewArray = ((typeof(Array) != 'undefined') && ! bugScopingIsBroken) ? function(n){return new Array(n);} : function(n){return new window.Array(n);};
    var xround = ((typeof(Math) != 'undefined') && ! bugScopingIsBroken) ? function(n){return Math.round(n);} : function(n){return window.Math.round(n);};
    var xfloor = ((typeof(Math) != 'undefined') && ! bugScopingIsBroken) ? function(n){return Math.floor(n);} : function(n){return window.Math.floor(n);};
    var now = ((typeof(Date) != 'undefined') && ! bugScopingIsBroken) ? function(){return new Date;} : function(){return new window.Date;};

    // XML namespaces we care about
    var namespaces = {
        'atom': 'http://www.w3.org/2005/Atom',
        'bio': 'http://purl.org/vocab/bio/0.1/',
        'cc': 'http://web.resource.org/cc/',
        'content': 'http://purl.org/rss/1.0/modules/content/',
        'dc': 'http://purl.org/dc/elements/1.1/',
        'dc0': 'http://purl.org/metadata/dublin_core#',
        'ddc': 'http://purl.org/net/ddc#',
        'doap': 'http://usefulinc.com/ns/doap#',
        'enclosure': 'http://purl.oclc.org/net/rss_2.0/enc#',
        'feedburner': 'http://rssnamespace.org/feedburner/ext/1.0',
        'foaf': 'http://xmlns.com/foaf/0.1/',
        'label': 'http://www.w3.org/2004/12/q/contentlabel#',
        'owl': 'http://www.w3.org/2002/07/owl#',
        'rdf': 'http://www.w3.org/1999/02/22-rdf-syntax-ns#',
        'rdfs': 'http://www.w3.org/2000/01/rdf-schema#',
        'rss': 'http://purl.org/rss/1.0/',
        'rss0': 'http://my.netscape.com/rdf/simple/0.9/',
        'smw': 'http://smw.ontoware.org/2005/smw#',
        'xhtml': 'http://www.w3.org/1999/xhtml',
        'xs': 'http://www.w3.org/2001/XMLSchema#',
        'xul': 'http://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul'
    };

    // do not make a text node longer than this, it will expose all
    // sorts of browser bugs; the actual limit is slightly larger,
    // 4096 is a nice round number.
    var MAXTXTSZ = 4096;

    // like String.fromCharCode(ord), but encodes surrogate pairs and
    // only processes one argument
    var unichr = function (ord) {
        if ((ord >= 0) && (ord <= 0xffff))
        {
            return xfromCharCode(ord);
        }
        if ((ord >= 0x10000) && (ord <= 0x10ffff))
        {
            // encode as a UTF-16 surrogate pair
            ord = ord - 0x10000;
            return xfromCharCode(0xd800 | (ord >> 10)) + xfromCharCode(0xdc00 | (ord & 0x3ff));
        }
        throw 'unichr: argument must be in Unicode range (U+0000 ... U+10FFFF)';
    };

    // like c.charCodeAt(0), but works for surrogate pairs and
    // requires c to contain exactly one unicode character
    var uniord = function(c) {
        c = '' + c;
        if (c.length == 1)
        {
            var o = c.charCodeAt(0);
            return o;
        }
        if (c.length == 2)
        {
            var cc0 = c.charCodeAt(0);
            var cc1 = c.charCodeAt(1);
            if ((cc0 >= 0xd800)
                &&
                (cc0 <= 0xdbff)
                &&
                (cc1 >= 0xdc00)
                &&
                (cc1 <= 0xdfff))
            {
                var o = 0x10000 + (((cc0 & 0x3ff) << 10) | (cc1 & 0x3ff));
                return o;
            }
        }
        throw 'uniord: argument must be a single unicode character or surrogate pair';
    };

    var rep = function(s, count) {
        s = s ? ('' + s) : '';
        if (! s) return s;
        var o = [];
        var mx = xfloor(MAXTXTSZ / s.length);
        if (! mx) mx = 1;
        while (count)
        {
            var seg = (count > mx) ? mx : count;
            count = count - seg;
            o[o.length] = xnewArray(1 + seg).join(s ? ('' + s) : '');
        }
        return o.join('');
    };

    // quote a string for use in a JavaScript or ECMAScript string
    // literal in a context where the character encoding is not known;
    // converts non-printable-ASCII characters to hexadecimal escape
    // sequences

    // NOTE: this produces '\x' + hex + hex escape sequences not
    // permitted by JSON (RFC 4627)

    // NOTE: this escapes '<', '&', and the '>' in ']]' + '>' so that
    // the result is safe to put inside a CDATA section or in HTML
    // PCDATA without further escaping.

    var escapeJavaScript = function(s) {
        if (! s) return s;
        s = '' + s;
        var o = [];
        for (var i = 0; i < s.length; i ++)
        {
            var ch = s.charAt(i);
            var c = s.charCodeAt(i);
            if (c >= 0x100)
            {
                o[o.length] = '\u' + (0x10000 + s.charCodeAt(i)).toString(16).toLowerCase().substr(1);
            }
            else if (ch == '\x09')
            {
                o[o.length] = '\t';
            }
            else if (ch == '\x0a')
            {
                o[o.length] = '\n';
            }
            else if (ch == '\x0d')
            {
                o[o.length] = '\r';
            }
            else if (ch == '\x08')
            {
                o[o.length] = '\b';
            }
            else if (ch == '\x0c')
            {
                o[o.length] = '\f';
            }
            else if ((ch == '\')
                     ||
                     (ch == '\"')
                     ||
                     (ch == '\''))
            {
                o[o.length] = '\' + ch;
            }
            else if ((c < 0x20)
                     ||
                     (c == 0x26)
                     ||
                     (c == 0x3c)
                     ||
                     ((c >= 0x7f)
                      &&
                      (c <= 0xff)))
            {
                o[o.length] = '\x' + (0x100 + s.charCodeAt(i)).toString(16).toLowerCase().substr(1);
            }
            else
            {
                o[o.length] = ch;
            }
        }
        return o.join('').split(']]' + '>').join(']]\x3e');
    };

    // UTF-16 to UTF-8
    var utf8 = function (s) {
        if (! s) return s;
        if (typeof(s) != 'string') s = '' + s;
        var e;
        try
        {
            return xunescape(xencodeURIComponent(s));
        }
        catch (e)
        {
            var o = [];
            for (var i = 0; i < s.length; i ++)
            {
                var ch = s.charAt(i);
                var c = uniord(ch);
                if ((((c >> 10) << 10) == 0xd800)
                    &&
                    ((i + 1) < s.length))
                {
                    var ch2 = s.charAt(i + 1);
                    var c2 = uniord(ch2);
                    if (((c2 >> 10) << 10) == 0xdc00)
                    {
                        i = i + 1;
                        ch = ch + ch2;
                        c = uniord(ch);
                    }
                }
                var ee;
                try
                {
                    o[o.length] = xunescape(xencodeURIComponent(ch));
                }
                catch (ee)
                {
                    if ((c >= 0x00) && (c <= 0x7f))
                    {
                        o[o.length] = ch;
                    }
                    else if ((c >= 0x80) && (c <= 0x10ffff))
                    {
                        var bs = '';
                        var b0 = 0x80;
                        while (c)
                        {
                            var b = 0x80 | (c & 0x3f);
                            c = c >> 6;
                            if (! c)
                            {
                                if (! ((b0 >> 1) & b))
                                {
                                    b = b | b0;
                                    b0 = 0;
                                }
                            }
                            bs = xfromCharCode(b) + bs;
                            if (b0)
                            {
                                b0 = (b0 >> 1) | 0x80;
                            }
                        }
                        if (b0)
                        {
                            bs = xfromCharCode(b0) + bs;
                        }
                        o[o.length] = bs;
                    }
                }
            }
            return o.join('');
        }
    };

    // all characters excluding NUL, surrogates, U+??FFFE, and U+??FFFF
    var utf8_character_pat = (
        '(?:' +
        '[\x01-\x7f]' + // U+0001 .. U+007F
        '|' +
        '[\xc2-\xdf][\x80-\xbf]' + // U+0080 .. U+07FF
        '|' +
        '\xe0[\xa0-\xbf][\x80-\xbf]' + // U+0800 .. U+0FFF
        '|' +
        '[\xe1-\xec\xee][\x80-\xbf]{2}' + // U+1000 .. U+CFFF, U+E000 .. U+EFFF
        '|' +
        '\xed[\x80-\x9f][\x80-\xbf]' + // U+D000 .. U+D7FF
        '|' +
        '\xef(?:[\x80-\xbe][\x80-\xbf]|\xbf[\x80-\xbd])' + // U+E000 .. U+FFFD
        '|' +
        '\xf0(?:[\x90-\x9e\xa0-\xae\xb0-\xbe][\x80-\xbf]{2}|[\x9f\xaf\xbf](?:[\x80-\xbe][\x80-\xbf]|\xbf[\x80-\xbd]))' + // U+10000 .. U+1FFFD, ... U+30000 .. U+3FFFD
        '|' +
        '[\xf1-\xf3](?:[\x80-\x8e\x90-\x9e\xa0-\xae\xb0-\xbe][\x80-\xbf]{2}|[\x8f\x9f\xaf\xbf](?:[\x80-\xbe][\x80-\xbf]|\xbf[\x80-\xbd]))' + // U+40000 .. U+4FFFD, ... U+F0000 .. U+FFFFD
        '|' +
        '\xf4(?:[\x80-\x8e][\x80-\xbf]{2}|\x8f(?:[\x80-\xbe][\x80-\xbf]|\xbf[\x80-\xbd]))' + // U+100000 .. U+10FFFD
        ')');
    var _utf8_characters_re = new RegExp(
        // pattern
        utf8_character_pat,
        // flags
        'g');


    // pattern for binary data mixed with UTF-8, unpaired surrogate
    // (CESU-8) sequences, and sequences representing U+??FFFE and
    // U+??FFFF
    var _utf8_cesu8_binary_re = new RegExp(
        // pattern
        utf8_character_pat +
        '|' +
        '(' + (
            '\xef\xbf[\xbe\xbf]' + // U+FFFE, U+FFFF
            '|' +
            '\xf0[\x9f\xaf\xbf]\xbf[\xbe\xbf]' + // U+1FFFE, U+1FFFF, U+2FFFE, U+2FFFF, U+3FFFE, U+3FFFF
            '|' +
            '[\xf1-\xf3][\x8f\x9f\xaf\xbf]\xbf[\xbe\xbf]' + // U+4FFFE, U+4FFFF, U+5FFFE, U+5FFFF, ... U+FFFFE, U+FFFFF
            '|' +
            '\xf4\x8f\xbf[\xbe\xbf]' + // U+10FFFE, U+10FFFF
            '|' +
            '\xed[\xa0-\xbf][\x80-\xbf]') + // U+D800 .. U+DFFF (CESU-8/unpaired surrogates)
        ')' +
        '|' +
        '(' + (
            '[\x80-\xff]') +  // invalid bytes
        ')',
        // flags
        'g');

    // UTF-8 to UTF-16
    var utf16 = function (s) {
        if (! s) return s;
        if (typeof(s) != 'string') s = '' + s;
        var sa = s.split('\0');
        var o = [];
        for (var i = 0; i < sa.length; i ++)
        {
            if (sa[i].replace(_utf8_characters_re, '') == '')
            {
                var e;
                try
                {
                    o[o.length] = xdecodeURIComponent(xescape(sa[i]));
                    continue;
                }
                catch (e)
                {
                }
            }
            var oo = [];
            if (sa[i].replace(
                    _utf8_cesu8_binary_re,
                    function (m, cesu8, invalid) {
                        m = '' + m;
                        cesu8 = cesu8 ? ('' + cesu8) : cesu8;
                        invalid = invalid ? ('' + invalid) : invalid;
                        if (invalid) {
                            oo[oo.length] = '\ufffd';
                            return '';
                        }
                        if (! cesu8) {
                            var ee;
                            try
                            {
                                oo[oo.length] = xdecodeURIComponent(xescape(m));
                                return '';
                            }
                            catch (ee)
                            {
                            }
                        }
                        if (m.length == 1)
                        {
                            oo[oo.length] = m;
                            return '';
                        }
                        var c = m.charCodeAt(0) & (0x7f >> m.length);
                        for (var j = 1; j < m.length; j ++)
                        {
                            c = (c << 6) | (m.charCodeAt(j) & 0x3f);
                        }
                        oo[oo.length] = unichr(c);
                        return '';
                    }) != '')
            {
                throw "Unable to process some parts of the UTF-8 sequence.";
            }
            o[o.length] = oo.join('');
        }
        s = o.join('\0');
        return s;
    };

    // Regular expressions using UTF-8 for actual regexp processing --
    // no case-insensitive mode [tables for that are truly huge], but
    // it supports all of Unicode (U+0000 ... U+10ffff). While
    // processing the NUL byte is remapped to '\xff' since the KJS
    // usage of PCRE cannot handle NUL inside patterns or in input --
    // the NUL-induced failures are silent but deadly.

    var re_utf8 = function (s) {
        if (! s) return s;
        s = '' + s;
        return utf8(s).split('\x00').join('\xff');
    };

    var re_utf16 = function (s) {
        if (! s) return s;
        s = '' + s;
        s = s.split('\xff');
        s = s.join('\x00');
        s = utf16(s);
        return s;
    };

    // Special regular expression character escapes
    var _re_escapes = {
        'a': '\x07',
        'b': '\x08',
        't': '\t',
        'n': '\n',
        'v': '\x0b',
        'f': '\x0c',
        'r': '\r',
        'e': '\x1b'
    };

    // Database of special regular expression character classes
    // generated by brute-force matching all of Unicode 4.1 using the
    // python 2.5 sre module.
    var _re_cclasses = {
        '\D': re_utf8('\x00-\/:-\xb1\xb4-\xb8\xba-\u065f\u066a-\u06ef\u06fa-\u0965\u0970-\u09e5\u09f0-\u0a65\u0a70-\u0ae5\u0af0-\u0b65\u0b70-\u0be5\u0bf0-\u0c65\u0c70-\u0ce5\u0cf0-\u0d65\u0d70-\u0e4f\u0e5a-\u0ecf\u0eda-\u0f1f\u0f2a-\u103f\u104a-\u1368\u1372-\u17df\u17ea-\u180f\u181a-\u1945\u1950-\u19cf\u19da-\u206f\u2071-\u2073\u207a-\u207f\u208a-\u245f\u2469-\u2473\u247d-\u2487\u2491-\u24e9\u24eb-\u24f4\u24fe\u2500-\u2775\u277f\u2789\u2793-\uff0f\uff1a-\U0001049f\U000104aa-\U00010a3f\U00010a44-\U0001d7cd\U0001d800-\U0010ffff'),
        '\S': re_utf8('\x00-\x08\x0e-\x1b!-\x84\x86-\x9f\xa1-\u167f\u1681-\u1fff\u200c-\u2027\u202a-\u202e\u2030-\u205e\u2060-\u2fff\u3001-\U0010ffff'),
        '\W': re_utf8('\x00-\/:-@\[-\^\`\{-\xa9\xab-\xb1\xb4\xb6-\xb8\xbb\xbf\xd7\xf7\u0242-\u024f\u02c2-\u02c5\u02d2-\u02df\u02e5-\u02ed\u02ef-\u0379\u037b-\u0385\u0387\u038b\u038d\u03a2\u03cf\u03f6\u0482-\u0489\u04cf\u04fa-\u04ff\u0510-\u0530\u0557-\u0558\u055a-\u0560\u0588-\u05cf\u05eb-\u05ef\u05f3-\u0620\u063b-\u063f\u064b-\u065f\u066a-\u066d\u0670\u06d4\u06d6-\u06e4\u06e7-\u06ed\u06fd-\u06fe\u0700-\u070f\u0711\u0730-\u074c\u076e-\u077f\u07a6-\u07b0\u07b2-\u0903\u093a-\u093c\u093e-\u094f\u0951-\u0957\u0962-\u0965\u0970-\u097c\u097e-\u0984\u098d-\u098e\u0991-\u0992\u09a9\u09b1\u09b3-\u09b5\u09ba-\u09bc\u09be-\u09cd\u09cf-\u09db\u09de\u09e2-\u09e5\u09f2-\u09f3\u09f8\u09fa-\u0a04\u0a0b-\u0a0e\u0a11-\u0a12\u0a29\u0a31\u0a34\u0a37\u0a3a-\u0a58\u0a5d\u0a5f-\u0a65\u0a70-\u0a71\u0a75-\u0a84\u0a8e\u0a92\u0aa9\u0ab1\u0ab4\u0aba-\u0abc\u0abe-\u0acf\u0ad1-\u0adf\u0ae2-\u0ae5\u0af0-\u0b04\u0b0d-\u0b0e\u0b11-\u0b12\u0b29\u0b31\u0b34\u0b3a-\u0b3c\u0b3e-\u0b5b\u0b5e\u0b62-\u0b65\u0b70\u0b72-\u0b82\u0b84\u0b8b-\u0b8d\u0b91\u0b96-\u0b98\u0b9b\u0b9d\u0ba0-\u0ba2\u0ba5-\u0ba7\u0bab-\u0bad\u0bba-\u0be5\u0bf3-\u0c04\u0c0d\u0c11\u0c29\u0c34\u0c3a-\u0c5f\u0c62-\u0c65\u0c70-\u0c84\u0c8d\u0c91\u0ca9\u0cb4\u0cba-\u0cbc\u0cbe-\u0cdd\u0cdf\u0ce2-\u0ce5\u0cf0-\u0d04\u0d0d\u0d11\u0d29\u0d3a-\u0d5f\u0d62-\u0d65\u0d70-\u0d84\u0d97-\u0d99\u0db2\u0dbc\u0dbe-\u0dbf\u0dc7-\u0e00\u0e31\u0e34-\u0e3f\u0e47-\u0e4f\u0e5a-\u0e80\u0e83\u0e85-\u0e86\u0e89\u0e8b-\u0e8c\u0e8e-\u0e93\u0e98\u0ea0\u0ea4\u0ea6\u0ea8-\u0ea9\u0eac\u0eb1\u0eb4-\u0ebc\u0ebe-\u0ebf\u0ec5\u0ec7-\u0ecf\u0eda-\u0edb\u0ede-\u0eff\u0f01-\u0f1f\u0f34-\u0f3f\u0f48\u0f6b-\u0f87\u0f8c-\u0fff\u1022\u1028\u102b-\u103f\u104a-\u104f\u1056-\u109f\u10c6-\u10cf\u10fb\u10fd-\u10ff\u115a-\u115e\u11a3-\u11a7\u11fa-\u11ff\u1249\u124e-\u124f\u1257\u1259\u125e-\u125f\u1289\u128e-\u128f\u12b1\u12b6-\u12b7\u12bf\u12c1\u12c6-\u12c7\u12d7\u1311\u1316-\u1317\u135b-\u1368\u137d-\u137f\u1390-\u139f\u13f5-\u1400\u166d-\u166e\u1677-\u1680\u169b-\u169f\u16eb-\u16ed\u16f1-\u16ff\u170d\u1712-\u171f\u1732-\u173f\u1752-\u175f\u176d\u1771-\u177f\u17b4-\u17d6\u17d8-\u17db\u17dd-\u17df\u17ea-\u17ef\u17fa-\u180f\u181a-\u181f\u1878-\u187f\u18a9-\u18ff\u191d-\u1945\u196e-\u196f\u1975-\u197f\u19aa-\u19c0\u19c8-\u19cf\u19da-\u19ff\u1a17-\u1cff\u1dc0-\u1dff\u1e9c-\u1e9f\u1efa-\u1eff\u1f16-\u1f17\u1f1e-\u1f1f\u1f46-\u1f47\u1f4e-\u1f4f\u1f58\u1f5a\u1f5c\u1f5e\u1f7e-\u1f7f\u1fb5\u1fbd\u1fbf-\u1fc1\u1fc5\u1fcd-\u1fcf\u1fd4-\u1fd5\u1fdc-\u1fdf\u1fed-\u1ff1\u1ff5\u1ffd-\u206f\u2072-\u2073\u207a-\u207e\u208a-\u208f\u2095-\u2101\u2103-\u2106\u2108-\u2109\u2114\u2116-\u2118\u211e-\u2123\u2125\u2127\u2129\u212e\u2132\u213a-\u213b\u2140-\u2144\u214a-\u2152\u2183-\u245f\u249c-\u24e9\u2500-\u2775\u2794-\u2bff\u2c2f\u2c5f-\u2c7f\u2ce5-\u2cfc\u2cfe-\u2cff\u2d26-\u2d2f\u2d66-\u2d6e\u2d70-\u2d7f\u2d97-\u2d9f\u2da7\u2daf\u2db7\u2dbf\u2dc7\u2dcf\u2dd7\u2ddf-\u3004\u3008-\u3020\u302a-\u3030\u3036-\u3037\u303d-\u3040\u3097-\u309c\u30a0\u30fb\u3100-\u3104\u312d-\u3130\u318f-\u3191\u3196-\u319f\u31b8-\u31ef\u3200-\u321f\u322a-\u3250\u3260-\u327f\u328a-\u32b0\u32c0-\u33ff\u4db6-\u4dff\u9fbc-\u9fff\ua48d-\ua7ff\ua802\ua806\ua80b\ua823-\uabff\ud7a4-\uf8ff\ufa2e-\ufa2f\ufa6b-\ufa6f\ufada-\ufaff\ufb07-\ufb12\ufb18-\ufb1c\ufb1e\ufb29\ufb37\ufb3d\ufb3f\ufb42\ufb45\ufbb2-\ufbd2\ufd3e-\ufd4f\ufd90-\ufd91\ufdc8-\ufdef\ufdfc-\ufe6f\ufe75\ufefd-\uff0f\uff1a-\uff20\uff3b-\uff40\uff5b-\uff65\uffbf-\uffc1\uffc8-\uffc9\uffd0-\uffd1\uffd8-\uffd9\uffdd-\uffff\U0001000c\U00010027\U0001003b\U0001003e\U0001004e-\U0001004f\U0001005e-\U0001007f\U000100fb-\U00010106\U00010134-\U0001013f\U00010179-\U00010189\U0001018b-\U000102ff\U0001031f\U00010324-\U0001032f\U0001034b-\U0001037f\U0001039e-\U0001039f\U000103c4-\U000103c7\U000103d0\U000103d6-\U000103ff\U0001049e-\U0001049f\U000104aa-\U000107ff\U00010806-\U00010807\U00010809\U00010836\U00010839-\U0001083b\U0001083d-\U0001083e\U00010840-\U000109ff\U00010a01-\U00010a0f\U00010a14\U00010a18\U00010a34-\U00010a3f\U00010a48-\U0001d3ff\U0001d455\U0001d49d\U0001d4a0-\U0001d4a1\U0001d4a3-\U0001d4a4\U0001d4a7-\U0001d4a8\U0001d4ad\U0001d4ba\U0001d4bc\U0001d4c4\U0001d506\U0001d50b-\U0001d50c\U0001d515\U0001d51d\U0001d53a\U0001d53f\U0001d545\U0001d547-\U0001d549\U0001d551\U0001d6a6-\U0001d6a7\U0001d6c1\U0001d6db\U0001d6fb\U0001d715\U0001d735\U0001d74f\U0001d76f\U0001d789\U0001d7a9\U0001d7c3\U0001d7ca-\U0001d7cd\U0001d800-\U0001ffff\U0002a6d7-\U0002f7ff\U0002fa1e-\U0010ffff'),
        '\d': re_utf8('0-9\xb2-\xb3\xb9\u0660-\u0669\u06f0-\u06f9\u0966-\u096f\u09e6-\u09ef\u0a66-\u0a6f\u0ae6-\u0aef\u0b66-\u0b6f\u0be6-\u0bef\u0c66-\u0c6f\u0ce6-\u0cef\u0d66-\u0d6f\u0e50-\u0e59\u0ed0-\u0ed9\u0f20-\u0f29\u1040-\u1049\u1369-\u1371\u17e0-\u17e9\u1810-\u1819\u1946-\u194f\u19d0-\u19d9\u2070\u2074-\u2079\u2080-\u2089\u2460-\u2468\u2474-\u247c\u2488-\u2490\u24ea\u24f5-\u24fd\u24ff\u2776-\u277e\u2780-\u2788\u278a-\u2792\uff10-\uff19\U000104a0-\U000104a9\U00010a40-\U00010a43\U0001d7ce-\U0001d7ff'),
        '\s': re_utf8('\t-\r\x1c-\x20\x85\xa0\u1680\u2000-\u200b\u2028-\u2029\u202f\u205f\u3000'),
        '\w': re_utf8('0-9A-Z_a-z\xaa\xb2-\xb3\xb5\xb9-\xba\xbc-\xbe\xc0-\xd6\xd8-\xf6\xf8-\u0241\u0250-\u02c1\u02c6-\u02d1\u02e0-\u02e4\u02ee\u037a\u0386\u0388-\u038a\u038c\u038e-\u03a1\u03a3-\u03ce\u03d0-\u03f5\u03f7-\u0481\u048a-\u04ce\u04d0-\u04f9\u0500-\u050f\u0531-\u0556\u0559\u0561-\u0587\u05d0-\u05ea\u05f0-\u05f2\u0621-\u063a\u0640-\u064a\u0660-\u0669\u066e-\u066f\u0671-\u06d3\u06d5\u06e5-\u06e6\u06ee-\u06fc\u06ff\u0710\u0712-\u072f\u074d-\u076d\u0780-\u07a5\u07b1\u0904-\u0939\u093d\u0950\u0958-\u0961\u0966-\u096f\u097d\u0985-\u098c\u098f-\u0990\u0993-\u09a8\u09aa-\u09b0\u09b2\u09b6-\u09b9\u09bd\u09ce\u09dc-\u09dd\u09df-\u09e1\u09e6-\u09f1\u09f4-\u09f7\u09f9\u0a05-\u0a0a\u0a0f-\u0a10\u0a13-\u0a28\u0a2a-\u0a30\u0a32-\u0a33\u0a35-\u0a36\u0a38-\u0a39\u0a59-\u0a5c\u0a5e\u0a66-\u0a6f\u0a72-\u0a74\u0a85-\u0a8d\u0a8f-\u0a91\u0a93-\u0aa8\u0aaa-\u0ab0\u0ab2-\u0ab3\u0ab5-\u0ab9\u0abd\u0ad0\u0ae0-\u0ae1\u0ae6-\u0aef\u0b05-\u0b0c\u0b0f-\u0b10\u0b13-\u0b28\u0b2a-\u0b30\u0b32-\u0b33\u0b35-\u0b39\u0b3d\u0b5c-\u0b5d\u0b5f-\u0b61\u0b66-\u0b6f\u0b71\u0b83\u0b85-\u0b8a\u0b8e-\u0b90\u0b92-\u0b95\u0b99-\u0b9a\u0b9c\u0b9e-\u0b9f\u0ba3-\u0ba4\u0ba8-\u0baa\u0bae-\u0bb9\u0be6-\u0bf2\u0c05-\u0c0c\u0c0e-\u0c10\u0c12-\u0c28\u0c2a-\u0c33\u0c35-\u0c39\u0c60-\u0c61\u0c66-\u0c6f\u0c85-\u0c8c\u0c8e-\u0c90\u0c92-\u0ca8\u0caa-\u0cb3\u0cb5-\u0cb9\u0cbd\u0cde\u0ce0-\u0ce1\u0ce6-\u0cef\u0d05-\u0d0c\u0d0e-\u0d10\u0d12-\u0d28\u0d2a-\u0d39\u0d60-\u0d61\u0d66-\u0d6f\u0d85-\u0d96\u0d9a-\u0db1\u0db3-\u0dbb\u0dbd\u0dc0-\u0dc6\u0e01-\u0e30\u0e32-\u0e33\u0e40-\u0e46\u0e50-\u0e59\u0e81-\u0e82\u0e84\u0e87-\u0e88\u0e8a\u0e8d\u0e94-\u0e97\u0e99-\u0e9f\u0ea1-\u0ea3\u0ea5\u0ea7\u0eaa-\u0eab\u0ead-\u0eb0\u0eb2-\u0eb3\u0ebd\u0ec0-\u0ec4\u0ec6\u0ed0-\u0ed9\u0edc-\u0edd\u0f00\u0f20-\u0f33\u0f40-\u0f47\u0f49-\u0f6a\u0f88-\u0f8b\u1000-\u1021\u1023-\u1027\u1029-\u102a\u1040-\u1049\u1050-\u1055\u10a0-\u10c5\u10d0-\u10fa\u10fc\u1100-\u1159\u115f-\u11a2\u11a8-\u11f9\u1200-\u1248\u124a-\u124d\u1250-\u1256\u1258\u125a-\u125d\u1260-\u1288\u128a-\u128d\u1290-\u12b0\u12b2-\u12b5\u12b8-\u12be\u12c0\u12c2-\u12c5\u12c8-\u12d6\u12d8-\u1310\u1312-\u1315\u1318-\u135a\u1369-\u137c\u1380-\u138f\u13a0-\u13f4\u1401-\u166c\u166f-\u1676\u1681-\u169a\u16a0-\u16ea\u16ee-\u16f0\u1700-\u170c\u170e-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176c\u176e-\u1770\u1780-\u17b3\u17d7\u17dc\u17e0-\u17e9\u17f0-\u17f9\u1810-\u1819\u1820-\u1877\u1880-\u18a8\u1900-\u191c\u1946-\u196d\u1970-\u1974\u1980-\u19a9\u19c1-\u19c7\u19d0-\u19d9\u1a00-\u1a16\u1d00-\u1dbf\u1e00-\u1e9b\u1ea0-\u1ef9\u1f00-\u1f15\u1f18-\u1f1d\u1f20-\u1f45\u1f48-\u1f4d\u1f50-\u1f57\u1f59\u1f5b\u1f5d\u1f5f-\u1f7d\u1f80-\u1fb4\u1fb6-\u1fbc\u1fbe\u1fc2-\u1fc4\u1fc6-\u1fcc\u1fd0-\u1fd3\u1fd6-\u1fdb\u1fe0-\u1fec\u1ff2-\u1ff4\u1ff6-\u1ffc\u2070-\u2071\u2074-\u2079\u207f-\u2089\u2090-\u2094\u2102\u2107\u210a-\u2113\u2115\u2119-\u211d\u2124\u2126\u2128\u212a-\u212d\u212f-\u2131\u2133-\u2139\u213c-\u213f\u2145-\u2149\u2153-\u2182\u2460-\u249b\u24ea-\u24ff\u2776-\u2793\u2c00-\u2c2e\u2c30-\u2c5e\u2c80-\u2ce4\u2cfd\u2d00-\u2d25\u2d30-\u2d65\u2d6f\u2d80-\u2d96\u2da0-\u2da6\u2da8-\u2dae\u2db0-\u2db6\u2db8-\u2dbe\u2dc0-\u2dc6\u2dc8-\u2dce\u2dd0-\u2dd6\u2dd8-\u2dde\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\u303c\u3041-\u3096\u309d-\u309f\u30a1-\u30fa\u30fc-\u30ff\u3105-\u312c\u3131-\u318e\u3192-\u3195\u31a0-\u31b7\u31f0-\u31ff\u3220-\u3229\u3251-\u325f\u3280-\u3289\u32b1-\u32bf\u3400-\u4db5\u4e00-\u9fbb\ua000-\ua48c\ua800-\ua801\ua803-\ua805\ua807-\ua80a\ua80c-\ua822\uac00-\ud7a3\uf900-\ufa2d\ufa30-\ufa6a\ufa70-\ufad9\ufb00-\ufb06\ufb13-\ufb17\ufb1d\ufb1f-\ufb28\ufb2a-\ufb36\ufb38-\ufb3c\ufb3e\ufb40-\ufb41\ufb43-\ufb44\ufb46-\ufbb1\ufbd3-\ufd3d\ufd50-\ufd8f\ufd92-\ufdc7\ufdf0-\ufdfb\ufe70-\ufe74\ufe76-\ufefc\uff10-\uff19\uff21-\uff3a\uff41-\uff5a\uff66-\uffbe\uffc2-\uffc7\uffca-\uffcf\uffd2-\uffd7\uffda-\uffdc\U00010000-\U0001000b\U0001000d-\U00010026\U00010028-\U0001003a\U0001003c-\U0001003d\U0001003f-\U0001004d\U00010050-\U0001005d\U00010080-\U000100fa\U00010107-\U00010133\U00010140-\U00010178\U0001018a\U00010300-\U0001031e\U00010320-\U00010323\U00010330-\U0001034a\U00010380-\U0001039d\U000103a0-\U000103c3\U000103c8-\U000103cf\U000103d1-\U000103d5\U00010400-\U0001049d\U000104a0-\U000104a9\U00010800-\U00010805\U00010808\U0001080a-\U00010835\U00010837-\U00010838\U0001083c\U0001083f\U00010a00\U00010a10-\U00010a13\U00010a15-\U00010a17\U00010a19-\U00010a33\U00010a40-\U00010a47\U0001d400-\U0001d454\U0001d456-\U0001d49c\U0001d49e-\U0001d49f\U0001d4a2\U0001d4a5-\U0001d4a6\U0001d4a9-\U0001d4ac\U0001d4ae-\U0001d4b9\U0001d4bb\U0001d4bd-\U0001d4c3\U0001d4c5-\U0001d505\U0001d507-\U0001d50a\U0001d50d-\U0001d514\U0001d516-\U0001d51c\U0001d51e-\U0001d539\U0001d53b-\U0001d53e\U0001d540-\U0001d544\U0001d546\U0001d54a-\U0001d550\U0001d552-\U0001d6a5\U0001d6a8-\U0001d6c0\U0001d6c2-\U0001d6da\U0001d6dc-\U0001d6fa\U0001d6fc-\U0001d714\U0001d716-\U0001d734\U0001d736-\U0001d74e\U0001d750-\U0001d76e\U0001d770-\U0001d788\U0001d78a-\U0001d7a8\U0001d7aa-\U0001d7c2\U0001d7c4-\U0001d7c9\U0001d7ce-\U0001d7ff\U00020000-\U0002a6d6\U0002f800-\U0002fa1d')
    };

    var _re_cclass_re = /^\[(\^?)((\[DSWdsw]|(\[0-7]{1,3}|\x[0-9a-fA-F][0-9a-fA-F]|\U[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\u[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\[^DSWdsw\x80-\xfe]|[^\]\x80-\xfe]|\?[\xc0-\xf4][\x80-\xbf]+)(-(\[0-7]{1,3}|\x[0-9a-fA-F][0-9a-fA-F]|\U[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\u[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\[^DSWdsw\x80-\xfe]|[^\x80-\xfe]|\?[\xc0-\xf4][\x80-\xbf]+))?)+)\]$/;

    var _re_cclass_part_re = /(\[DSWdsw])|(\[0-7]{1,3}|\x[0-9a-fA-F][0-9a-fA-F]|\U[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\u[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\[^DSWdsw\x80-\xfe]|[^\x80-\xfe]|\?[\xc0-\xf4][\x80-\xbf]+)(-(\[0-7]{1,3}|\x[0-9a-fA-F][0-9a-fA-F]|\U[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\u[0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F]|\[^DSWdsw\x80-\xfe]|[^\x80-\xfe]|\?[\xc0-\xf4][\x80-\xbf]+))?/g;

    var _re_cclass_char_re = /^\([0-7]{1,3})|\x([0-9a-fA-F][0-9a-fA-F])|\U([0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F])|\u([0-9a-fA-F][0-9a-fA-F][0-9a-fA-F][0-9a-fA-F])|\([^DSWdsw\x80-\xfe])|([^\x80-\xfe])|\?([\xc0-\xf4][\x80-\xbf]+)$/

        var _re_cclass_char = function (s) {
        return s.replace(
            _re_cclass_char_re,
            function (m, octal, hex8, hex32, hex16, escaped, unescaped, multibyte) {
                if (octal) {
                    cc = 0;
                    octal = '' + octal;
                    while (octal.length)
                    {
                        cc = (cc * 8) + xparseInt(octal.substr(0, 1));
                    }
                    return re_utf8(unichr(cc));
                }
                if (hex8 || hex32 || hex16)
                {
                    return re_utf8(unichr(xparseInt('0x' + (hex8 ? hex8 : (hex32 ? hex32 : hex16)))));
                }
                if (escaped)
                {
                    if (_re_escapes[escaped])
                    {
                        return _re_escapes[escaped];
                    }
                    return escaped;
                }
                if (unescaped || multibyte)
                {
                    return unescaped ? unescaped : multibyte;
                }
                throw "Invalid Regular Expression: unrecognized character in literal";
            });
        return s;
    };
    var _re_cclass_cache = {};

    var _re_quote_byte = function (cc) {
        if (((cc >= uniord('0')) && (cc <= uniord('9')))
            ||
            ((cc >= uniord('A')) && (cc <= uniord('Z')))
            ||
            ((cc >= uniord('a')) && (cc <= uniord('z')))
            ||
            (cc == uniord('_'))
            ||
            (cc == uniord(' ')))
        {
            return unichr(cc);
        }
        if ((cc >= 0x20) && (cc < 0x7f))
        {
            return '\' + unichr(cc);
        }
        return '\x' + (0x100 + cc).toString(16).substr(1);
    };
    _re_quote_byte = (
        function () {
            var _re_quote_byte_memoized = xnewArray(256);
            for (var i = 0; i < 256; i ++)
            {
                _re_quote_byte_memoized[i] = _re_quote_byte(i);
            }
            return function (cc) { return _re_quote_byte_memoized[cc]; };
        })();
    // convert UTF-16 RegExp character classes to corresponding UTF-8
    // byte patterns; this supports Python-style \U00xxxxxx escapes to
    // represent characters outside the BMP; case-insensitivity (flags
    // = 'i') is only effective for the ASCII range, pending inclusion
    // of data files from a particular Unicode revision and an
    // efficient implementation.
    var re_cclass = function (s, flags) {
        s = re_utf8(s);
        flags = flags ? flags : '';
        var caseInsensitive = (flags.indexOf('i') >= 0);
        var key = (caseInsensitive ? 'i' : ' ') + s;
        if (_re_cclass_cache[key] != void(null))
        {
            return _re_cclass_cache[key];
        }
        var m = s.match(_re_cclass_re);
        if (! m)
        {
            throw "Invalid Regular Expression: syntax error in character class";
        }
        var sense = m[1] ? false : true;
        var ranges = xnewArray(256);
        var makeSeq = function (node, inner, prefix) {
            prefix = prefix ? prefix : '';
            var parensNeeded = false;
            if (node == 1)
            {
                return sense ? '' : '[^\x01-\xff]';
            }
            if ((! node)
                ||
                (node == '*'))
            {
                if (node ? (! sense) : sense)
                {
                    return '[^\x01-\xff]';
                }
                else
                {
                    if (! prefix)
                    {
                        return '(?:[\x01-\x7f\xff]|[\xc2-\xfe][\x80-\xbf]+)';
                    }
                    var b0 = prefix.charCodeAt(0);
                    if ((b0 == 0xff)
                        ||
                        ((b0 & 0xc0) != 0xc0))
                    {
                        return '';
                    }
                    if (((b0 & 0xe0) == 0xc0) && (prefix.length < 2))
                    {
                        return (prefix.length < 2) ? '[\x80-\xbf]' : '';
                    }
                    if (((b0 & 0xf0) == 0xe0) && (prefix.length < 3))
                    {
                        return (prefix.length == 2) ? '[\x80-\xbf]' : ((b0 == 0xe0) ? '[\xa0-\xbf][\x80-\xbf]' : ('[\x80-\xbf]{' + (3 - prefix.length) + '}'));
                    }
                    if (((b0 & 0xf8) == 0xf0) && (prefix.length < 4))
                    {
                        return (prefix.length == 3) ? '[\x80-\xbf]' : ((((b0 == 0xf0) || (b0 == 0xf4))
                                                                          && (prefix.length == 1))
                                                                         ?
                                                                         ((b0 == 0xf0) ? '[\x90-\xbf][\x80-\xbf]{2}' : '[\x80-\x8f][\x80-\xbf]{2}')
                                                                         :
                                                                         ('[\x80-\xbf]{' + (4 - prefix.length) + '}'));
                    }
                    return '';
                }
            }
            var o = [];
            var tails = {};
            for (var i = sense ? 0 : 1; i < 256; i ++)
            {
                var iprefix = prefix + (i ? xfromCharCode(i) : '');
                if ((i == 0xc0)
                    ||
                    (i == 0xc1)
                    ||
                    ((i > 0xf4)
                     &&
                     (i < 0xff))
                    ||
                    (((i & 0xc0) == 0x80)
                     &&
                     ! inner)
                    ||
                    (((! (i & 0x80))
                      ||
                      ((i & 0xc0) == 0xc0))
                     &&
                     inner)
                    ||
                    ((iprefix >= '\xe0\x80')
                     &&
                     (iprefix <= '\xe0\x9f'))
                    ||
                    ((iprefix >= '\xf0\x80')
                     &&
                     (iprefix <= '\xf0\x8f'))
                    ||
                    ((iprefix >= '\xf4\x90')
                     &&
                     (iprefix < '\xff')))
                {
                    continue;
                }
                if (node[i] || ! sense)
                {
                    var tail = makeSeq(node[i], true, iprefix);
                    if (node[i] && (! tail) && ! sense)
                    {
                        continue;
                    }
                    if (! tails[tail])
                    {
                        tails[tail] = [ o.length, [ ] ];
                    }
                    if ((i > 1)
                        &&
                        tails[tail][1].length
                        &&
                        (tails[tail][1][tails[tail][1].length - 1][1] == (i - 1)))
                    {
                        tails[tail][1][tails[tail][1].length - 1][1] = i;
                    }
                    else
                    {
                        tails[tail][1][tails[tail][1].length] = [ i, i ];
                    }
                    var head = [];
                    var headempty = false;
                    for (var j = 0; j < tails[tail][1].length; j ++)
                    {
                        var k = tails[tail][1][j];
                        if (! k[0] && ! k[1])
                        {
                            headempty = true;
                        }
                        else
                        {
                            head[head.length] = _re_quote_byte(k[0]);
                            if (k[1] != k[0])
                            {
                                if (k[1] > (k[0] + 1))
                                {
                                    head[head.length] = '-';
                                }
                                head[head.length] = _re_quote_byte(k[1]);
                            }
                        }
                    }
                    if ((tail.indexOf('[^\x01-\xff]') >= 0)
                        &&
                        (! headempty))
                    {
                        continue;
                    }
                    if ((headempty
                         ||
                         tail)
                        &&
                        (! inner))
                    {
                        parensNeeded = true;
                    }
                    o[tails[tail][0]] = (
                        (headempty ? '(?:' : '')
                        +
                        ((head.length > 1) ? '[' : '')
                        +
                        head.join('')
                        +
                        ((head.length > 1) ? ']' : '')
                        +
                        tail
                        +
                        (headempty ? ')?' : ''));
                }
            }
            if (! o.length)
            {
                return '[^\x01-\xff]';
            }
            if (o.length != 1)
            {
                parensNeeded = true;
            }
            return (
                (parensNeeded ? '(?:' : '')
                +
                o.join('|')
                +
                (parensNeeded ? ')' : ''));
        };
        var addSeq = function (seq, endSeq) {
            var node = ranges;
            for (var i = 0; i < seq.length; i ++)
            {
                var cc = seq.charCodeAt(i);
                if ((! node[cc]) || (node[cc] == '*'))
                {
                    if (((i + 1) < seq.length)
                        &&
                        (cc & 0x80)
                        &&
                        (cc != 0xff)
                        &&
                        (seq.substr(i + 1).split('\x80').join('') == '')
                        &&
                        ((node[cc] == '*')
                         ||
                         (endSeq
                          &&
                          ((endSeq.length > seq.length)
                           ||
                           ((endSeq.length == seq.length)
                            &&
                            (endSeq > seq)
                            &&
                            ((endSeq.substr(0, i + 1) > seq.substr(0, i + 1))
                             ||
                             (endSeq.substr(i + 1).split('\xbf').join('\x80') == seq.substr(i + 1))))))))
                    {
                        node[cc] = '*';
                        var skip = (
                            uniord(re_utf16(seq.substr(0, i + 1) + rep('\xbf', seq.substr(i + 1).length)))
                            -
                            uniord(re_utf16(seq)));
                        return skip;
                    }
                    else
                    {
                        node[cc] = ((i + 1) < seq.length) ? xnewArray(256) : 1;
                    }
                }
                if ((i + 1) < seq.length)
                {
                    if (node[cc] == 1)
                    {
                        node[cc] = xnewArray(256);
                        node[cc][0] = 1;
                    }
                    node = node[cc];
                }
            }
            return 0;
        };
        var addRange = function (startSeq, endSeq) {
            for (var i = startSeq; i <= endSeq; i++)
            {
                var seq = unichr(i);
                if (caseInsensitive && (i < 0x80))
                {
                    if (seq.toLowerCase() != seq)
                    {
                        addSeq(re_utf8(seq.toLowerCase()));
                    }
                    if (seq.toUpperCase() != seq)
                    {
                        addSeq(re_utf8(seq.toUpperCase()));
                    }
                }
                i += addSeq(re_utf8(seq), re_utf8((i >= 0x80) ? unichr(endSeq) : void(null)));
            }
        };
        if (m[2].replace(
                _re_cclass_part_re,
                function (m, specialSeq, startSeq, endPart, endSeq) {
                    if (specialSeq)
                    {
                        return _re_cclasses[specialSeq];
                    }
                    return m;
                }).replace(
                    _re_cclass_part_re,
                    function (m, specialSeq, startSeq, endPart, endSeq) {
                        if (specialSeq)
                        {
                            throw "Invalid Regular Expression: special sequence " + specialSeq + " could not be rewritten";
                        }
                        startSeq = uniord(re_utf16(_re_cclass_char(startSeq)));
                        endSeq = endSeq ? uniord(re_utf16(_re_cclass_char(endSeq))) : startSeq;
                        addRange(startSeq, endSeq);
                        return '';
                    }))
        {
            throw "Invalid Regular Expression: character class parse error";
        }
        _re_cclass_cache[key] = makeSeq(ranges);
        return _re_cclass_cache[key];
    };

    // here's the script I used to dump the cache:
    var _dump_cclass_cache = function() {
        var cls = '';
        for (var clsk in _re_cclass_cache)
        {
            cls+='_re_cclass_cache[re_utf8(\'' + escapeJavaScript(re_utf16(clsk)) + '\')]=\'' + escapeJavaScript(re_utf16(_re_cclass_cache[clsk])) + '\';';
        }
        window.prompt('_re_cclass_cache contents:', cls);
    };

    var xml_forbidden_pat = '[\x00-\b\x0b\f\x0e-\x1f\ud800-\udfff\ufffe\uffff]';
    var xml_discouraged_pat = '[\x7f-\x84\x86-\x9f\ufdd0-\ufddf\ud83f\udffe\ud83f\udfff\ud87f\udffe\ud87f\udfff\ud8bf\udffe\ud8bf\udfff\ud8ff\udffe\ud8ff\udfff\ud93f\udffe\ud93f\udfff\ud97f\udffe\ud97f\udfff\ud9bf\udffe\ud9bf\udfff\ud9ff\udffe\ud9ff\udfff\uda3f\udffe\uda3f\udfff\uda7f\udffe\uda7f\udfff\udabf\udffe\udabf\udfff\udaff\udffe\udaff\udfff\udb3f\udffe\udb3f\udfff\udb7f\udffe\udb7f\udfff\udbbf\udffe\udbbf\udfff\udbff\udffe\udbff\udfff]';
    var c1_pat = '[\x80-\x9f]';
    var ws_pat = '[\s]';

    // pre-heat the cache
    _re_cclass_cache[re_utf8(' ' + xml_forbidden_pat)]='(?:[\x01-\x08\x0b\x0c\x0e-\x1f\xff]|\xed[\xa0-\xbf][\x80-\xbf]|\xef\xbf[\xbe\xbf])';
    _re_cclass_cache[re_utf8(' ' + xml_discouraged_pat)]='(?:\x7f|\xc2[\x80-\x84\x86-\x9f]|\xef\xb7[\x90-\x9f]|\xf0[\x9f\xaf\xbf]\xbf[\xbe\xbf]|[\xf1-\xf3][\x8f\x9f\xaf\xbf]\xbf[\xbe\xbf]|\xf4\x8f\xbf[\xbe\xbf])';
    _re_cclass_cache[re_utf8(' ' + c1_pat)]='(?:\xc2[\x80-\x9f])';
    _re_cclass_cache[re_utf8(' ' + ws_pat)]='(?:[\x09-\x0d\x1c- ]|\xc2[\x85\xa0]|\xe1\x9a\x80|\xe2(?:\x80[\x80-\x8b\xa8\xa9\xaf]|\x81\x9f)|\xe3\x80\x80)';

    // seed the cache in case one of those changed...
    _re_cclass_cache[re_utf8(' ' + xml_forbidden_pat)]=re_cclass(xml_forbidden_pat);
    _re_cclass_cache[re_utf8(' ' + xml_discouraged_pat)]=re_cclass(xml_discouraged_pat);
    _re_cclass_cache[re_utf8(' ' + c1_pat)]=re_cclass(c1_pat);
    _re_cclass_cache[re_utf8(' ' + ws_pat)]=re_cclass(ws_pat);

    //_dump_cclass_cache();

    var xml_forbidden_re = new RegExp(
        // pattern
        re_cclass(xml_forbidden_pat),
        // flags
        'g');

    // compatibility characters are also discouraged, but not detected by this regex
    var xml_discouraged_re = new RegExp(
        // pattern
        re_cclass(xml_discouraged_pat),
        // flags
        'g');

    // replace characters disallowed in XML with the replacement character
    var xml_unicode_filter = function(s) {
        if (! s) return s;
        s = re_utf8(s);
        s = s.replace(xml_forbidden_re, function (m) { return re_utf8('\ufffd'); });
        s = re_utf16(s);
        return s;
    };

    // quote a string for use in XML text or attribute value (not
    // CDATA, though)
    var escapeXML = function(s) {
        if (! s) return s;
        s = xml_unicode_filter(s);
        s = s.split('&').join('&' + 'amp;').split('<').join('&' + 'lt;').split('>').join('&' + 'gt;').split('\"').join('&' + 'quot;').split('\'').join('&' + '#39;');
        return re_utf16(re_utf8(s).replace(xml_discouraged_re, function (m) { return '&#' + uniord(re_utf16(m)) + ';'; }));
    };

    // Konqueror cross-domain restrictions sometimes break everything...
    if ((typeof(self) != 'undefined')
        &&
        window
        &&
        (typeof(window.document) == 'undefined')
        &&
        (self != window))
    {
        var msg = "FAILED";
        var msglong = "RSS Panel X failed to load due to insufficient JavaScript privileges.";
        self.onload = function() {
            if (targetURI && scriptURI)
            {
                var eepu;
                try
                {
                    self.open('data:text/html;charset=utf-8,'
                              +
                              xencodeURIComponent(
                                  '<' + '!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
                                  +
                                  '<' + 'html xmlns="http://www.w3.org/1999/xhtml">'
                                  +
                                  '<' + 'head>'
                                  +
                                  '<' + 'title>RSS Panel X<' + '/title>'
                                  +
                                  '<' + 'link rel="alternate" href="' + escapeXML('' + targetURI) + '" />'
                                  +
                                  '<' + '/head>'
                                  +
                                  '<' + 'body>'
                                  +
                                  '<' + 'div style="font: 8pt sans-serif;font-weight: normal;font-family: \'Arial Narrow\', \'Helvetica CY\', \'FreeSans\', Arial, Helvetica, sans-serif;position:fixed;top:45%;width:100%;text-align:center;">'
                                  +
                                  escapeXML("RSS Panel X was unable to display in the original page due to JavaScript security restrictions.")
                                  +
                                  '<' + 'br />'
                                  +
                                  '<' + 'a href="javascript:self.close()">'
                                  +
                                  escapeXML("Click here to close this window.")
                                  +
                                  '<' + '/a>'
                                  +
                                  '<' + '/div>'
                                  +
                                  '<' + 'script type="text/javascript" src="'
                                  +
                                  escapeXML(scriptURI)
                                  +
                                  '"><' + '/script>'
                                  +
                                  '<' + '/body>'
                                  +
                                  '<' + '/html>'));
                    msg = "See Pop-Up";
                    msglong = "RSS Panel X has tried to open in a pop-up window.";
                }
                catch (eepu)
                {
                }
            }
            self.location.replace('data:text/html;charset=utf-8,'
                                  +
                                  xencodeURIComponent(
                                      '<' + '!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">'
                                      +
                                      '<' + 'html xmlns="http://www.w3.org/1999/xhtml">'
                                      +
                                      '<' + 'body style="line-height: 15px; height: 15px; width: 70px; position: absolute; top: 0px; left: px; margin: 0px; padding: 4px; border: 1px solid #fcc; text-align: center; color: #fff; background: #f00; font: 12pt sans-serif; font-family: \'Arial Narrow\', \'Helvetica CY\', \'FreeSans\', Arial, Helvetica, sans-serif; overflow: hidden;" title="' + escapeXML(msglong) + '">'
                                      +
                                      escapeXML(msg)
                                      +
                                      '<' + '/body>'
                                      +
                                      '<' + '/html>'),
                                  true);
        };
        return;
    }

    // "global" scope variables
    var RSSPanelVersion = "2.01-bsittler12";

    // connection timeout for XMLHttpRequest in milliseconds
    var WatchdogTimeout = 40e3;

/* ************************** bel *****************************
 *   COLOR & OPACITY Constants for the RSS Reader.
 **************************************************************/
    var intify = function(s) {
        var n = s.length + 2;
        s = s + xfromCharCode(n);
        for (var i = 0; i < s.length; i ++)
        {
            n = ((n & 0xfff800) >> 11) ^ ((n & 0x0007ff) << 11) ^ n ^ ((s.charCodeAt(i) * 0x001001) & 0xffff);
        }
        return n;
    };

    var get_location = function() {
        var eel;
        try
        {
            var location_cached = (
                (defined(window.document.location)
                 &&
                 window.document.location)
                ?
                window.document.location
                :
                window.location
                );
            get_location = function () { return location_cached; };
            return get_location();
        }
        catch (eel)
        {
            return '';
        }
    };

    /* start urllib.js */
    var undef = void(null);
    var defined = function(o) {
        return o != undef;
    };
    var _remove_dot_segments_re = /(^\.\.?\/|^\.\.?$)|(^\/\.\/|^\/\.$)|(^\/\.\.\/|^\/\.\.$)|^\/?[^\/]/;
    var remove_dot_segments = function(path) {
        path = '' + path;
        var opath = '';
        while (path)
        {
            var m = path.match(_remove_dot_segments_re);
            if (m)
            {
                if (m && m[1])
                {
                    path = path.substr(m[1].length);
                }
                else if (m && m[2])
                {
                    path = '/' + path.substr(m[2].length);
                }
                else if (m && m[3])
                {
                    path = '/' + path.substr(m[3].length);
                    opath = opath.replace(/\/[^\/]*$|^[^\/]*$/, '');
                }
                else
                {
                    opath += m[0];
                    path = path.substr(m[0].length);
                }
            }
            else
            {
                opath += path;
                path = '';
            }
        }
        return opath;
    };
    var _URL_re = /^(([^:\/?#]+):)?(\/\/([^\/?#]*))?([^?#]*)(\?([^#]*))?(#(.*))?$/;
    var _URL_allowed_re = /([-:/?#\[\]@!$&\'()*+,;=a-zA-Z0-9._~]+)|(%[46][1-9a-fA-F]|%[57][0-9aA]|%3[0-9]|%2[dDeE]|%5[fF]|%7[eE])|(%[0-9a-fA-F][0-9a-fA-F])|.|\n/;
    var _URL_unreserved_pat = '[-._~a-zA-Z0-9]';
    var _URL_pct_encoded_pat = '(?:%[0-9a-fA-F]{2,2})';
    var _URL_sub_delims_pat = '[!$&\'()*+,;=]';
    var _URL_userinfo_pat = '(?:(?:' + _URL_unreserved_pat + '|' + _URL_pct_encoded_pat + '|' + _URL_sub_delims_pat + '|:)*)';
    var _URL_dec_octet_pat = '(?:[0-9]|[1-9][0-9]{2,3}|2[0-4][0-9]|25[0-5])';
    var _URL_IPv4address_pat = '(?:' + _URL_dec_octet_pat + '\.' + _URL_dec_octet_pat + '\.' + _URL_dec_octet_pat + '\.' + _URL_dec_octet_pat + ')';
    var _URL_h16_pat = '(?:[0-9a-fA-F]{4,4})';
    var _URL_ls32_pat = '(?:' + _URL_h16_pat + ':' + _URL_h16_pat + '|' + _URL_IPv4address_pat + ')';
    var _URL_IPv6address_pat = (
        '(?:' +
        [
            '(?:' + _URL_h16_pat + ':){6,6}' + _URL_ls32_pat,
            '::(?:' + _URL_h16_pat + ':){5,5}' + _URL_ls32_pat,
            _URL_h16_pat + '?::(?:' + _URL_h16_pat + ':){4,4}' + _URL_ls32_pat,
            '(?:(?:' + _URL_h16_pat + ':)?' + _URL_h16_pat + ')?::(?:' + _URL_h16_pat + ':){3,3}' + _URL_ls32_pat,
            '(?:(?:' + _URL_h16_pat + ':){0,2}' + _URL_h16_pat + ')?::(?:' + _URL_h16_pat + ':){2,2}' + _URL_ls32_pat,
            '(?:(?:' + _URL_h16_pat + ':){0,3}' + _URL_h16_pat + ')?::' + _URL_h16_pat + ':' + _URL_ls32_pat,
            '(?:(?:' + _URL_h16_pat + ':){0,4}' + _URL_h16_pat + ')?::' + _URL_ls32_pat,
            '(?:(?:' + _URL_h16_pat + ':){0,5}' + _URL_h16_pat + ')?::' + _URL_h16_pat,
            '(?:(?:' + _URL_h16_pat + ':){0,6}' + _URL_h16_pat + ')?::'].join('|') +
        ')');
    var _URL_IPvFuture_pat = '(?:v[0-9a-fA-F]+\.(?:' + _URL_unreserved_pat + '|' + _URL_sub_delims_pat + '|:)+)';
    var _URL_IP_literal_pat = '(?:\[(?:' + _URL_IPv6address_pat + '|' + _URL_IPvFuture_pat + ')\])';
    var _URL_reg_name_pat = '(?:' + _URL_unreserved_pat + '|' + _URL_pct_encoded_pat + '|' + _URL_sub_delims_pat + ')*';
    var _URL_host_pat = '(?:' + _URL_IP_literal_pat + '|' + _URL_IPv4address_pat + '|' + _URL_reg_name_pat + ')';
    var _URL_port_pat = '(?:[0-9]*)';
    var _URL_authority_pat = '(' + _URL_userinfo_pat + '@)?(' + _URL_host_pat + ')(:' + _URL_port_pat + ')?';
    var _URL_authority_re = new RegExp('^' + _URL_authority_pat + '$');
    var fix_mailboxes = function (s) {
        /* TODO: normalize mailboxes, as seen in RFC822 and RFC2822 */
        return s;
    };
    var fix_pct_encoding = function (s) {
        /* normalize percent-encoding */
        return utf16((utf8(s)).replace(
                         _URL_allowed_re,
                         function (m, normal_unencoded, unreserved_pct_encoded, pct_encoded) {
                             m = '' + m;
                             if (normal_unencoded) return m;
                             if (unreserved_pct_encoded) return xunescape(m);
                             if (pct_encoded) return m.toUpperCase();
                             return xescape(m).split('+').join('%2B').split('\x7f').join('%7F');
                         }));
    };
    var _URL_scheme_default_port = { 'http': 80, 'https': 443, 'ftp': 21, 'gopher': 70, 'telnet': 23, 'ssh': 22, 'nntp': 119, 'nttps': 563 };
    var _URL_scheme_empty_abspath_is_root = { 'file': true, 'http': true, 'https': true, 'ftp': true, 'gopher': true, 'telnet': true, 'ldap': true };
    var URL = function(s, b, strict) {
        s = '' + s;
        /* conversion from IRI to URI and normalization of percent-escapes */
        s = fix_pct_encoding(s);
        /* parsing */
        var m = s.match(_URL_re);
        if (! m)
        {
            m = [ undef, undef, undef, undef, undef, s, undef, undef, undef, undef ];
        }
        /* see RFC 3986 */
        this.scheme = m[1] ? m[2] : undef;
        this.authority = m[3] ? m[4] : undef;
        this.path = m[5];
        this.query = m[6] ? m[7] : undef;
        this.fragment = m[8] ? m[9] : undef;
        /* normalization of scheme */
        if (this.scheme) this.scheme = this.scheme.toLowerCase();
        /* conversion to string */
        this.toString = function() {
            return ((defined(this.scheme) ? (this.scheme + ':') : '')
                    +
                    (defined(this.authority) ? ('//' + this.authority) : '')
                    +
                    (defined(this.path) ? this.path : '')
                    +
                    (defined(this.query) ? ('?' + this.query) : '')
                    +
                    (defined(this.fragment) ? ('#' + this.fragment) : ''));
        };
        if (b != null)
        {
            var r = new URL(this);
            b = new URL(b);
            if ((! strict) && (r.scheme == b.scheme))
            {
                r.scheme = undef;
            }
            if (defined(r.scheme))
            {
                this.scheme = r.scheme;
                this.authority = r.authority;
                this.path = remove_dot_segments(r.path);
                this.query = r.query;
            }
            else
            {
                if (defined(r.authority))
                {
                    this.authority = r.authority;
                    this.path = remove_dot_segments(r.path);
                    this.query = r.query;
                }
                else
                {
                    if (! r.path)
                    {
                        this.path = b.path;
                        if (defined(r.query))
                        {
                            this.query = r.query;
                        }
                        else
                        {
                            this.query = b.query;
                        }
                    }
                    else
                    {
                        if (r.path && r.path.substr(0, 1) == '/')
                        {
                            this.path = remove_dot_segments(r.path);
                        }
                        else
                        {
                            if (defined(b.authority) && (b.path == ''))
                            {
                                this.path = '/' + r.path;
                            }
                            else
                            {
                                this.path = b.path.substr(0, b.path.lastIndexOf('/') + 1) + r.path;
                            }
                            this.path = remove_dot_segments(this.path);
                        }
                        this.query = r.query;
                    }
                    this.authority = b.authority;
                }
                this.scheme = b.scheme;
            }
            this.fragment = r.fragment;
        }
        /* normalization of authority */
        if (defined(this.authority))
        {
            this.authority = this.authority.replace(
                _URL_authority_re,
                function (m, userinfo, host, port)
                {
                    this.userinfo = '' + (userinfo || '');
                    this.host = '' + (host || '');
                    /* normalize host part to lower case but re-normalize percent-escapes to uppercase */
                    this.host = fix_pct_encoding(this.host.toLowerCase());
                    this.port = '' + (port || '');
                    /* omit empty port */
                    if (this.port == ':') this.port = '';
                    /* strip leading zeros from port */
                    this.port = this.port.replace('^:0+([1-9][0-9]*|[0-9])$', ':$1');
                    /* omit default port for common URL schemes */
                    if (this.scheme
                        &&
                        this.port
                        &&
                        (_URL_scheme_default_port[this.scheme] == xparseInt(this.port.substr(1))))
                    {
                        this.port = '';
                    }
                    this.userinfo = this.userinfo ? this.userinfo.substr(0, this.userinfo.length - 1) : undef;
                    this.host = this.host ? this.host : undef;
                    this.port = this.port ? this.port.substr(1) : undef;
                    return (defined(this.userinfo) ? (this.userinfo + '@') : '') + (this.host || '') + (defined(this.port) ? (':' + this.port) : '');
                });
        }
        /* scheme-specific empty path normalization */
        if (_URL_scheme_empty_abspath_is_root[this.scheme]
            &&
            defined(this.authority)
            &&
            (! this.path))
        {
            this.path = '/';
        }
        /* file: empty authority normalization */
        if ((this.scheme == 'file')
            &&
            ((defined(this.authority) && (this.authority == 'localhost'))
             ||
             ((! this.authority) && this.path && (this.path.substr(0, 1) == '/'))))
        {
            this.authority = '';
        }
        /* mailto: normalization (see RFC2368) */
        if ((this.scheme == 'mailto') && (this.path))
        {
            var headers = {};
            if (this.path) this.path = this.path.split('+').join('%2B');
            var m = (this.path || '').match(/^(.*)?([?][^?&=]*=[^?&]*([&][^?&=]*=[^?&]*)*)?$/);
            if (! m)
            {
                if (this.path) headers[':to'] = fix_pct_encoding(xescape(fix_mailboxes(xunescape(this.path))));
            }
            else
            {
                if (m[1]) headers[':to'] = fix_pct_encoding(xescape(fix_mailboxes(xunescape(m[1]))));
                var headers_list = (m[2] || '?').substr(1).split('&');
                for (var ihl = 0; ihl < headers_list.length; ihl ++)
                {
                    var header = headers_list[ihl];
                    var hname = header.substr(0, header.indexOf('='));
                    var hvalue = header.substr(hname.length + 1);
                    hname = fix_pct_encoding(xescape(xunescape(hname.toLowerCase())));
                    hvalue = fix_pct_encoding(xescape(xunescape(hvalue)));
                    if (hname == 'to') hvalue = fix_pct_encoding(xescape(fix_mailboxes(xunescape(hvalue))));
                    if (defined(headers[':' + hname]))
                    {
                        headers[':' + hname] += '%2C%20' + hvalue;
                    }
                    else
                    {
                        headers[':' + hname] = hvalue;
                    }
                }
            }
            /* only allow known-safe headers (to, subject, keywords, and body) */
            this.path = headers[':to'] || '';
            var headers_list = [];
            var safe_headers = [ 'subject', 'keywords', 'body' ];
            for (var ihl = 0; ihl < safe_headers.length; ihl ++)
            {
                var hname = safe_headers[ihl];
                var hvalue = headers[':' + hname];
                if (defined(hvalue))
                {
                    headers_list[headers_list.length] = hname + '=' + hvalue.split('=').join('%3D');
                }
            }
            if (headers_list.length) this.path += '?' + headers_list.join('&');
        }
        /* normalization of path (absolute case) */
        if (this.path && (this.path.substr(0, 1) == '/'))
        {
            this.path = remove_dot_segments(this.path);
        }
    };
    /* end urllib.js */
    var location_minusFragment = function(src)
        {
            src = new URL(src);
            src.fragment = undef;
            return src.toString();
        }

    var hostname = '';
    var eehn;
    try
    {
        hostname = (get_location()).hostname;
    }
    catch (eehn)
    {
    }
    var SHUFFLESEED = intify(('' + hostname).toLowerCase().replace(/^.*\.([^.]+\.([^.]+\.[a-z][a-z0-9]|[a-z][-a-z0-9]+[a-z0-9]))\.?$/, '$1').replace(/^www\./, ''));
    var shuffle = function(pal) {
        var s = SHUFFLESEED;
        while (s)
        {
            var n = s % pal.length;
            s = s / pal.length;
            pal = pal.substr(n, 1) + pal.substr(0, n) + pal.substr(n + 1);
        }
        return '#' + pal;
    };
    var BACKGROUND       = shuffle("cff");
    var TEXT             = shuffle("000");
    var BORDER           = shuffle("09f");
    var TITLE_BACKGROUND = shuffle("09f");
    var TITLE_BORDER     = shuffle("cdf");
    var TITLE_TEXT       = shuffle("fff");
    var OPACITY          = "0.85";

    /* feed handling */
    var feedTypes = {
        'application/rss+xml': true,
        'application/rdf+xml': true,
        'application/atom+xml': true,
        'application/xhtml+xml': true,
        'application/xml': true,
        'text/html': true,
        'text/xml': true,
        'text/x-opml': true,
        'text/xml+opml': true
    };
    var feedTags = {
        'feed': true,
        'RDF': true,
        'rss': true,
        'opml': true
    };
    var feedNamespaces = {};
    feedNamespaces[namespaces.atom] = true;
    feedNamespaces[namespaces.rss] = true;
    feedNamespaces[namespaces.rss0] = true;
    feedNamespaces[namespaces.foaf] = true;
    feedNamespaces[namespaces.rdf] = true;
    feedNamespaces[namespaces.doap] = true;
    /* XHTML tag handling */
    var xhtml = {
        'suppress': {
            'script': true,
            'style': true,
            'textarea': true,
            'title': true
        },
        'valueAttr': {
            'img': 'alt'
        },
        'breakAfter': {
            'br': true,
            'p': true,
            'div': true,
            'hr': true,
            'h1': true,
            'h2': true,
            'h3': true,
            'h4': true,
            'h5': true,
            'blockquote': true,
            'address': true,
            'table': true,
            'tr': true,
            'td': true,
            'form': true,
            'pre': true,
            'xmp': true,
            'listing': true,
            'ol': true,
            'ul': true,
            'menu': true,
            'dir': true,
            'li': true,
            'dl': true,
            'dt': true,
            'dd': true
        },
        'entities': {
            /* xml */
            'amp': '\x26',
            'apos': '\x27',
            'gt': '\x3e',
            'lt': '\x3c',
            'quot': '\x22',
            /* mathml private use */
            'b.phis': '\ue724',
            'b.Upsilon': '\ue723',
            'BadBreak': '\ue894',
            'elinters': '\ue3a7',
            'false': '\ue8a7',
            'fjlig': '\ue3b2',
            'GoodBreak': '\ue893',
            'IndentingNewLine': '\ue891',
            'LeftSkeleton': '\ue850',
            'NotANumber': '\ue8aa',
            'plank': '\ue2d5',
            'RightSkeleton': '\ue851',
            'trpezium': '\ue2ec',
            'true': '\ue8ab',
            /* xhtml + mathml, more or less */
            'Aacgr': '\u0386',
            'aacgr': '\u03ac',
            'Aacute': '\xc1',
            'aacute': '\xe1',
            'Abreve': '\u0102',
            'abreve': '\u0103',
            'ac': '\u223e',
            'acd': '\u223f',
            'acE': '\u223e\u0333',
            'Acirc': '\xc2',
            'acirc': '\xe2',
            'acute': '\xb4',
            'Acy': '\u0410',
            'acy': '\u0430',
            'AElig': '\xc6',
            'aelig': '\xe6',
            'af': '\u2061',
            'Afr': '\ud835\udd04',
            'afr': '\ud835\udd1e',
            'Agr': '\u0391',
            'agr': '\u03b1',
            'Agrave': '\xc0',
            'agrave': '\xe0',
            'alefsym': '\u2135',
            'aleph': '\u2135',
            'Alpha': '\u0391',
            'alpha': '\u03b1',
            'Amacr': '\u0100',
            'amacr': '\u0101',
            'amalg': '\u2a3f',
            'and': '\u2227',
            'And': '\u2a53',
            'andand': '\u2a55',
            'andd': '\u2a5c',
            'andslope': '\u2a58',
            'andv': '\u2a5a',
            'ang': '\u2220',
            'ange': '\u29a4',
            'angle': '\u2220',
            'angmsd': '\u2221',
            'angmsdaa': '\u29a8',
            'angmsdab': '\u29a9',
            'angmsdac': '\u29aa',
            'angmsdad': '\u29ab',
            'angmsdae': '\u29ac',
            'angmsdaf': '\u29ad',
            'angmsdag': '\u29ae',
            'angmsdah': '\u29af',
            'angrt': '\u221f',
            'angrtvb': '\u22be',
            'angrtvbd': '\u299d',
            'angsph': '\u2222',
            'angst': '\u212b',
            'angzarr': '\u237c',
            'Aogon': '\u0104',
            'aogon': '\u0105',
            'Aopf': '\ud835\udd38',
            'aopf': '\ud835\udd52',
            'ap': '\u2248',
            'apacir': '\u2a6f',
            'ape': '\u224a',
            'apE': '\u2a70',
            'apid': '\u224b',
            'ApplyFunction': '\u2061',
            'approx': '\u2248',
            'approxeq': '\u224a',
            'Aring': '\xc5',
            'aring': '\xe5',
            'Ascr': '\ud835\udc9c',
            'ascr': '\ud835\udcb6',
            'Assign': '\u2254',
            'ast': '\x2a',
            'asymp': '\u2248',
            'asympeq': '\u224d',
            'Atilde': '\xc3',
            'atilde': '\xe3',
            'Auml': '\xc4',
            'auml': '\xe4',
            'awconint': '\u2233',
            'awint': '\u2a11',
            'b.alpha': '\ud835\udec2',
            'b.beta': '\ud835\udec3',
            'b.chi': '\ud835\uded8',
            'b.Delta': '\ud835\udeab',
            'b.delta': '\ud835\udec5',
            'b.epsi': '\ud835\udec6',
            'b.epsiv': '\ud835\udedc',
            'b.eta': '\ud835\udec8',
            'b.Gamma': '\ud835\udeaa',
            'b.gamma': '\ud835\udec4',
            'b.Gammad': '\u03dc',
            'b.gammad': '\u03dd',
            'b.iota': '\ud835\udeca',
            'b.kappa': '\ud835\udecb',
            'b.kappav': '\ud835\udede',
            'b.Lambda': '\ud835\udeb2',
            'b.lambda': '\ud835\udecc',
            'b.mu': '\ud835\udecd',
            'b.nu': '\ud835\udece',
            'b.Omega': '\ud835\udec0',
            'b.omega': '\ud835\udeda',
            'b.Phi': '\ud835\udebd',
            'b.phi': '\ud835\uded7',
            'b.phiv': '\ud835\udedf',
            'b.Pi': '\ud835\udeb7',
            'b.pi': '\ud835\uded1',
            'b.piv': '\ud835\udee1',
            'b.Psi': '\ud835\udebf',
            'b.psi': '\ud835\uded9',
            'b.rho': '\ud835\uded2',
            'b.rhov': '\ud835\udee0',
            'b.Sigma': '\ud835\udeba',
            'b.sigma': '\ud835\uded4',
            'b.sigmav': '\ud835\uded3',
            'b.tau': '\ud835\uded5',
            'b.Theta': '\ud835\udeaf',
            'b.thetas': '\ud835\udec9',
            'b.thetav': '\ud835\udedd',
            'b.Upsi': '\ud835\udebc',
            'b.upsi': '\ud835\uded6',
            'b.Xi': '\ud835\udeb5',
            'b.xi': '\ud835\udecf',
            'b.zeta': '\ud835\udec7',
            'backcong': '\u224c',
            'backepsilon': '\u03f6',
            'backprime': '\u2035',
            'backsim': '\u223d',
            'backsimeq': '\u22cd',
            'Backslash': '\u2216',
            'Barv': '\u2ae7',
            'barvee': '\u22bd',
            'barwed': '\u2305',
            'Barwed': '\u2306',
            'barwedge': '\u2305',
            'bbrk': '\u23b5',
            'bbrktbrk': '\u23b6',
            'bcong': '\u224c',
            'Bcy': '\u0411',
            'bcy': '\u0431',
            'bdquo': '\u201e',
            'becaus': '\u2235',
            'Because': '\u2235',
            'because': '\u2235',
            'bemptyv': '\u29b0',
            'bepsi': '\u03f6',
            'bernou': '\u212c',
            'Bernoullis': '\u212c',
            'Beta': '\u0392',
            'beta': '\u03b2',
            'beth': '\u2136',
            'between': '\u226c',
            'Bfr': '\ud835\udd05',
            'bfr': '\ud835\udd1f',
            'Bgr': '\u0392',
            'bgr': '\u03b2',
            'bigcap': '\u22c2',
            'bigcirc': '\u25ef',
            'bigcup': '\u22c3',
            'bigodot': '\u2a00',
            'bigoplus': '\u2a01',
            'bigotimes': '\u2a02',
            'bigsqcup': '\u2a06',
            'bigstar': '\u2605',
            'bigtriangledown': '\u25bd',
            'bigtriangleup': '\u25b3',
            'biguplus': '\u2a04',
            'bigvee': '\u22c1',
            'bigwedge': '\u22c0',
            'bkarow': '\u290d',
            'blacklozenge': '\u29eb',
            'blacksquare': '\u25aa',
            'blacktriangle': '\u25b4',
            'blacktriangledown': '\u25be',
            'blacktriangleleft': '\u25c2',
            'blacktriangleright': '\u25b8',
            'blank': '\u2423',
            'blk12': '\u2592',
            'blk14': '\u2591',
            'blk34': '\u2593',
            'block': '\u2588',
            'bne': '\x3d\u20e5',
            'bnequiv': '\u2261\u20e5',
            'bnot': '\u2310',
            'bNot': '\u2aed',
            'Bopf': '\ud835\udd39',
            'bopf': '\ud835\udd53',
            'bot': '\u22a5',
            'bottom': '\u22a5',
            'bowtie': '\u22c8',
            'boxbox': '\u29c9',
            'boxdl': '\u2510',
            'boxdL': '\u2555',
            'boxDl': '\u2556',
            'boxDL': '\u2557',
            'boxdr': '\u250c',
            'boxdR': '\u2552',
            'boxDr': '\u2553',
            'boxDR': '\u2554',
            'boxh': '\u2500',
            'boxH': '\u2550',
            'boxhd': '\u252c',
            'boxHd': '\u2564',
            'boxhD': '\u2565',
            'boxHD': '\u2566',
            'boxhu': '\u2534',
            'boxHu': '\u2567',
            'boxhU': '\u2568',
            'boxHU': '\u2569',
            'boxminus': '\u229f',
            'boxplus': '\u229e',
            'boxtimes': '\u22a0',
            'boxul': '\u2518',
            'boxuL': '\u255b',
            'boxUl': '\u255c',
            'boxUL': '\u255d',
            'boxur': '\u2514',
            'boxuR': '\u2558',
            'boxUr': '\u2559',
            'boxUR': '\u255a',
            'boxv': '\u2502',
            'boxV': '\u2551',
            'boxvh': '\u253c',
            'boxvH': '\u256a',
            'boxVh': '\u256b',
            'boxVH': '\u256c',
            'boxvl': '\u2524',
            'boxvL': '\u2561',
            'boxVl': '\u2562',
            'boxVL': '\u2563',
            'boxvr': '\u251c',
            'boxvR': '\u255e',
            'boxVr': '\u255f',
            'boxVR': '\u2560',
            'bprime': '\u2035',
            'breve': '\u02d8',
            'Breve': '\u02d8',
            'brvbar': '\xa6',
            'Bscr': '\u212c',
            'bscr': '\ud835\udcb7',
            'bsemi': '\u204f',
            'bsim': '\u223d',
            'bsime': '\u22cd',
            'bsol': '\x5c',
            'bsolb': '\u29c5',
            'bsolhsub': '\x5c\u2282',
            'bull': '\u2022',
            'bullet': '\u2022',
            'bump': '\u224e',
            'bumpe': '\u224f',
            'bumpE': '\u2aae',
            'Bumpeq': '\u224e',
            'bumpeq': '\u224f',
            'Cacute': '\u0106',
            'cacute': '\u0107',
            'cap': '\u2229',
            'Cap': '\u22d2',
            'capand': '\u2a44',
            'capbrcup': '\u2a49',
            'capcap': '\u2a4b',
            'capcup': '\u2a47',
            'capdot': '\u2a40',
            'CapitalDifferentialD': '\u2145',
            'caps': '\u2229\ufe00',
            'caret': '\u2041',
            'caron': '\u02c7',
            'Cayleys': '\u212d',
            'ccaps': '\u2a4d',
            'Ccaron': '\u010c',
            'ccaron': '\u010d',
            'Ccedil': '\xc7',
            'ccedil': '\xe7',
            'Ccirc': '\u0108',
            'ccirc': '\u0109',
            'Cconint': '\u2230',
            'ccups': '\u2a4c',
            'ccupssm': '\u2a50',
            'Cdot': '\u010a',
            'cdot': '\u010b',
            'cedil': '\xb8',
            'Cedilla': '\xb8',
            'cemptyv': '\u29b2',
            'cent': '\xa2',
            'centerdot': '\xb7',
            'CenterDot': '\xb7',
            'Cfr': '\u212d',
            'cfr': '\ud835\udd20',
            'CHcy': '\u0427',
            'chcy': '\u0447',
            'check': '\u2713',
            'checkmark': '\u2713',
            'Chi': '\u03a7',
            'chi': '\u03c7',
            'cir': '\u25cb',
            'circ': '\u02c6',
            'circeq': '\u2257',
            'circlearrowleft': '\u21ba',
            'circlearrowright': '\u21bb',
            'circledast': '\u229b',
            'circledcirc': '\u229a',
            'circleddash': '\u229d',
            'CircleDot': '\u2299',
            'circledR': '\xae',
            'circledS': '\u24c8',
            'CircleMinus': '\u2296',
            'CirclePlus': '\u2295',
            'CircleTimes': '\u2297',
            'cire': '\u2257',
            'cirE': '\u29c3',
            'cirfnint': '\u2a10',
            'cirmid': '\u2aef',
            'cirscir': '\u29c2',
            'ClockwiseContourIntegral': '\u2232',
            'CloseCurlyDoubleQuote': '\u201d',
            'CloseCurlyQuote': '\u2019',
            'clubs': '\u2663',
            'clubsuit': '\u2663',
            'colon': '\x3a',
            'Colon': '\u2237',
            'colone': '\u2254',
            'Colone': '\u2a74',
            'coloneq': '\u2254',
            'comma': '\x2c',
            'commat': '\x40',
            'comp': '\u2201',
            'compfn': '\u2218',
            'complement': '\u2201',
            'complexes': '\u2102',
            'cong': '\u2245',
            'congdot': '\u2a6d',
            'Congruent': '\u2261',
            'conint': '\u222e',
            'Conint': '\u222f',
            'ContourIntegral': '\u222e',
            'Copf': '\u2102',
            'copf': '\ud835\udd54',
            'coprod': '\u2210',
            'Coproduct': '\u2210',
            'copy': '\xa9',
            'copysr': '\u2117',
            'CounterClockwiseContourIntegral': '\u2233',
            'crarr': '\u21b5',
            'cross': '\u2717',
            'Cross': '\u2a2f',
            'Cscr': '\ud835\udc9e',
            'cscr': '\ud835\udcb8',
            'csub': '\u2acf',
            'csube': '\u2ad1',
            'csup': '\u2ad0',
            'csupe': '\u2ad2',
            'ctdot': '\u22ef',
            'cudarrl': '\u2938',
            'cudarrr': '\u2935',
            'cuepr': '\u22de',
            'cuesc': '\u22df',
            'cularr': '\u21b6',
            'cularrp': '\u293d',
            'cup': '\u222a',
            'Cup': '\u22d3',
            'cupbrcap': '\u2a48',
            'CupCap': '\u224d',
            'cupcap': '\u2a46',
            'cupcup': '\u2a4a',
            'cupdot': '\u228d',
            'cupor': '\u2a45',
            'cups': '\u222a\ufe00',
            'curarr': '\u21b7',
            'curarrm': '\u293c',
            'curlyeqprec': '\u22de',
            'curlyeqsucc': '\u22df',
            'curlyvee': '\u22ce',
            'curlywedge': '\u22cf',
            'curren': '\xa4',
            'curvearrowleft': '\u21b6',
            'curvearrowright': '\u21b7',
            'cuvee': '\u22ce',
            'cuwed': '\u22cf',
            'cwconint': '\u2232',
            'cwint': '\u2231',
            'cylcty': '\u232d',
            'dagger': '\u2020',
            'Dagger': '\u2021',
            'daleth': '\u2138',
            'darr': '\u2193',
            'Darr': '\u21a1',
            'dArr': '\u21d3',
            'dash': '\u2010',
            'dashv': '\u22a3',
            'Dashv': '\u2ae4',
            'dbkarow': '\u290f',
            'dblac': '\u02dd',
            'Dcaron': '\u010e',
            'dcaron': '\u010f',
            'Dcy': '\u0414',
            'dcy': '\u0434',
            'DD': '\u2145',
            'dd': '\u2146',
            'ddagger': '\u2021',
            'ddarr': '\u21ca',
            'DDotrahd': '\u2911',
            'ddotseq': '\u2a77',
            'deg': '\xb0',
            'Del': '\u2207',
            'Delta': '\u0394',
            'delta': '\u03b4',
            'demptyv': '\u29b1',
            'dfisht': '\u297f',
            'Dfr': '\ud835\udd07',
            'dfr': '\ud835\udd21',
            'Dgr': '\u0394',
            'dgr': '\u03b4',
            'dHar': '\u2965',
            'dharl': '\u21c3',
            'dharr': '\u21c2',
            'DiacriticalAcute': '\xb4',
            'DiacriticalDot': '\u02d9',
            'DiacriticalDoubleAcute': '\u02dd',
            'DiacriticalGrave': '\x60',
            'DiacriticalTilde': '\u02dc',
            'diam': '\u22c4',
            'Diamond': '\u22c4',
            'diamond': '\u22c4',
            'diamondsuit': '\u2666',
            'diams': '\u2666',
            'die': '\xa8',
            'DifferentialD': '\u2146',
            'digamma': '\u03dd',
            'disin': '\u22f2',
            'div': '\xf7',
            'divide': '\xf7',
            'divideontimes': '\u22c7',
            'divonx': '\u22c7',
            'DJcy': '\u0402',
            'djcy': '\u0452',
            'dlcorn': '\u231e',
            'dlcrop': '\u230d',
            'dollar': '\x24',
            'Dopf': '\ud835\udd3b',
            'dopf': '\ud835\udd55',
            'Dot': '\xa8',
            'dot': '\u02d9',
            'DotDot': '\x20\u20dc',
            'doteq': '\u2250',
            'doteqdot': '\u2251',
            'DotEqual': '\u2250',
            'dotminus': '\u2238',
            'dotplus': '\u2214',
            'dotsquare': '\u22a1',
            'doublebarwedge': '\u2306',
            'DoubleContourIntegral': '\u222f',
            'DoubleDot': '\xa8',
            'DoubleDownArrow': '\u21d3',
            'DoubleLeftArrow': '\u21d0',
            'DoubleLeftRightArrow': '\u21d4',
            'DoubleLeftTee': '\u2ae4',
            'DoubleLongLeftArrow': '\u27f8',
            'DoubleLongLeftRightArrow': '\u27fa',
            'DoubleLongRightArrow': '\u27f9',
            'DoubleRightArrow': '\u21d2',
            'DoubleRightTee': '\u22a8',
            'DoubleUpArrow': '\u21d1',
            'DoubleUpDownArrow': '\u21d5',
            'DoubleVerticalBar': '\u2225',
            'downarrow': '\u2193',
            'DownArrow': '\u2193',
            'Downarrow': '\u21d3',
            'DownArrowBar': '\u2913',
            'DownArrowUpArrow': '\u21f5',
            'DownBreve': '\x20\u0311',
            'downdownarrows': '\u21ca',
            'downharpoonleft': '\u21c3',
            'downharpoonright': '\u21c2',
            'DownLeftRightVector': '\u2950',
            'DownLeftTeeVector': '\u295e',
            'DownLeftVector': '\u21bd',
            'DownLeftVectorBar': '\u2956',
            'DownRightTeeVector': '\u295f',
            'DownRightVector': '\u21c1',
            'DownRightVectorBar': '\u2957',
            'DownTee': '\u22a4',
            'DownTeeArrow': '\u21a7',
            'drbkarow': '\u2910',
            'drcorn': '\u231f',
            'drcrop': '\u230c',
            'Dscr': '\ud835\udc9f',
            'dscr': '\ud835\udcb9',
            'DScy': '\u0405',
            'dscy': '\u0455',
            'dsol': '\u29f6',
            'Dstrok': '\u0110',
            'dstrok': '\u0111',
            'dtdot': '\u22f1',
            'dtri': '\u25bf',
            'dtrif': '\u25be',
            'duarr': '\u21f5',
            'duhar': '\u296f',
            'dwangle': '\u29a6',
            'DZcy': '\u040f',
            'dzcy': '\u045f',
            'dzigrarr': '\u27ff',
            'Eacgr': '\u0388',
            'eacgr': '\u03ad',
            'Eacute': '\xc9',
            'eacute': '\xe9',
            'easter': '\u2a6e',
            'Ecaron': '\u011a',
            'ecaron': '\u011b',
            'ecir': '\u2256',
            'Ecirc': '\xca',
            'ecirc': '\xea',
            'ecolon': '\u2255',
            'Ecy': '\u042d',
            'ecy': '\u044d',
            'eDDot': '\u2a77',
            'Edot': '\u0116',
            'edot': '\u0117',
            'eDot': '\u2251',
            'ee': '\u2147',
            'EEacgr': '\u0389',
            'eeacgr': '\u03ae',
            'EEgr': '\u0397',
            'eegr': '\u03b7',
            'efDot': '\u2252',
            'Efr': '\ud835\udd08',
            'efr': '\ud835\udd22',
            'eg': '\u2a9a',
            'Egr': '\u0395',
            'egr': '\u03b5',
            'Egrave': '\xc8',
            'egrave': '\xe8',
            'egs': '\u2a96',
            'egsdot': '\u2a98',
            'el': '\u2a99',
            'Element': '\u2208',
            'ell': '\u2113',
            'els': '\u2a95',
            'elsdot': '\u2a97',
            'Emacr': '\u0112',
            'emacr': '\u0113',
            'empty': '\u2205',
            'emptyset': '\u2205',
            'EmptySmallSquare': '\u25fb',
            'emptyv': '\u2205',
            'EmptyVerySmallSquare': '\u25ab',
            'emsp': '\u2003',
            'emsp13': '\u2004',
            'emsp14': '\u2005',
            'ENG': '\u014a',
            'eng': '\u014b',
            'ensp': '\u2002',
            'Eogon': '\u0118',
            'eogon': '\u0119',
            'Eopf': '\ud835\udd3c',
            'eopf': '\ud835\udd56',
            'epar': '\u22d5',
            'eparsl': '\u29e3',
            'eplus': '\u2a71',
            'epsi': '\u03f5',
            'Epsilon': '\u0395',
            'epsilon': '\u03b5',
            'epsiv': '\u03b5',
            'eqcirc': '\u2256',
            'eqcolon': '\u2255',
            'eqsim': '\u2242',
            'eqslantgtr': '\u2a96',
            'eqslantless': '\u2a95',
            'Equal': '\u2a75',
            'equals': '\x3d',
            'EqualTilde': '\u2242',
            'equest': '\u225f',
            'Equilibrium': '\u21cc',
            'equiv': '\u2261',
            'equivDD': '\u2a78',
            'eqvparsl': '\u29e5',
            'erarr': '\u2971',
            'erDot': '\u2253',
            'escr': '\u212f',
            'Escr': '\u2130',
            'esdot': '\u2250',
            'esim': '\u2242',
            'Esim': '\u2a73',
            'Eta': '\u0397',
            'eta': '\u03b7',
            'ETH': '\xd0',
            'eth': '\xf0',
            'Euml': '\xcb',
            'euml': '\xeb',
            'euro': '\u20ac',
            'excl': '\x21',
            'exist': '\u2203',
            'Exists': '\u2203',
            'expectation': '\u2130',
            'ExponentialE': '\u2147',
            'exponentiale': '\u2147',
            'fallingdotseq': '\u2252',
            'Fcy': '\u0424',
            'fcy': '\u0444',
            'female': '\u2640',
            'ffilig': '\ufb03',
            'fflig': '\ufb00',
            'ffllig': '\ufb04',
            'Ffr': '\ud835\udd09',
            'ffr': '\ud835\udd23',
            'filig': '\ufb01',
            'FilledSmallSquare': '\u25fc',
            'FilledVerySmallSquare': '\u25aa',
            'flat': '\u266d',
            'fllig': '\ufb02',
            'fltns': '\u25b1',
            'fnof': '\u0192',
            'Fopf': '\ud835\udd3d',
            'fopf': '\ud835\udd57',
            'ForAll': '\u2200',
            'forall': '\u2200',
            'fork': '\u22d4',
            'forkv': '\u2ad9',
            'Fouriertrf': '\u2131',
            'fpartint': '\u2a0d',
            'frac12': '\xbd',
            'frac13': '\u2153',
            'frac14': '\xbc',
            'frac15': '\u2155',
            'frac16': '\u2159',
            'frac18': '\u215b',
            'frac23': '\u2154',
            'frac25': '\u2156',
            'frac34': '\xbe',
            'frac35': '\u2157',
            'frac38': '\u215c',
            'frac45': '\u2158',
            'frac56': '\u215a',
            'frac58': '\u215d',
            'frac78': '\u215e',
            'frasl': '\u2044',
            'frown': '\u2322',
            'Fscr': '\u2131',
            'fscr': '\ud835\udcbb',
            'gacute': '\u01f5',
            'Gamma': '\u0393',
            'gamma': '\u03b3',
            'Gammad': '\u03dc',
            'gammad': '\u03dd',
            'gap': '\u2a86',
            'Gbreve': '\u011e',
            'gbreve': '\u011f',
            'Gcedil': '\u0122',
            'Gcirc': '\u011c',
            'gcirc': '\u011d',
            'Gcy': '\u0413',
            'gcy': '\u0433',
            'Gdot': '\u0120',
            'gdot': '\u0121',
            'ge': '\u2265',
            'gE': '\u2267',
            'gel': '\u22db',
            'gEl': '\u2a8c',
            'geq': '\u2265',
            'geqq': '\u2267',
            'geqslant': '\u2a7e',
            'ges': '\u2a7e',
            'gescc': '\u2aa9',
            'gesdot': '\u2a80',
            'gesdoto': '\u2a82',
            'gesdotol': '\u2a84',
            'gesl': '\u22db\ufe00',
            'gesles': '\u2a94',
            'Gfr': '\ud835\udd0a',
            'gfr': '\ud835\udd24',
            'gg': '\u226b',
            'Gg': '\u22d9',
            'ggg': '\u22d9',
            'Ggr': '\u0393',
            'ggr': '\u03b3',
            'gimel': '\u2137',
            'GJcy': '\u0403',
            'gjcy': '\u0453',
            'gl': '\u2277',
            'gla': '\u2aa5',
            'glE': '\u2a92',
            'glj': '\u2aa4',
            'gnap': '\u2a8a',
            'gnapprox': '\u2a8a',
            'gnE': '\u2269',
            'gne': '\u2a88',
            'gneq': '\u2a88',
            'gneqq': '\u2269',
            'gnsim': '\u22e7',
            'Gopf': '\ud835\udd3e',
            'gopf': '\ud835\udd58',
            'grave': '\x60',
            'GreaterEqual': '\u2265',
            'GreaterEqualLess': '\u22db',
            'GreaterFullEqual': '\u2267',
            'GreaterGreater': '\u2aa2',
            'GreaterLess': '\u2277',
            'GreaterSlantEqual': '\u2a7e',
            'GreaterTilde': '\u2273',
            'gscr': '\u210a',
            'Gscr': '\ud835\udca2',
            'gsim': '\u2273',
            'gsime': '\u2a8e',
            'gsiml': '\u2a90',
            'Gt': '\u226b',
            'gtcc': '\u2aa7',
            'gtcir': '\u2a7a',
            'gtdot': '\u22d7',
            'gtlPar': '\u2995',
            'gtquest': '\u2a7c',
            'gtrapprox': '\u2a86',
            'gtrarr': '\u2978',
            'gtrdot': '\u22d7',
            'gtreqless': '\u22db',
            'gtreqqless': '\u2a8c',
            'gtrless': '\u2277',
            'gtrsim': '\u2273',
            'gvertneqq': '\u2269\ufe00',
            'gvnE': '\u2269\ufe00',
            'Hacek': '\u02c7',
            'hairsp': '\u200a',
            'half': '\xbd',
            'hamilt': '\u210b',
            'HARDcy': '\u042a',
            'hardcy': '\u044a',
            'harr': '\u2194',
            'hArr': '\u21d4',
            'harrcir': '\u2948',
            'harrw': '\u21ad',
            'Hat': '\x5e',
            'hbar': '\u210f',
            'Hcirc': '\u0124',
            'hcirc': '\u0125',
            'hearts': '\u2665',
            'heartsuit': '\u2665',
            'hellip': '\u2026',
            'hercon': '\u22b9',
            'Hfr': '\u210c',
            'hfr': '\ud835\udd25',
            'HilbertSpace': '\u210b',
            'hksearow': '\u2925',
            'hkswarow': '\u2926',
            'hoarr': '\u21ff',
            'homtht': '\u223b',
            'hookleftarrow': '\u21a9',
            'hookrightarrow': '\u21aa',
            'Hopf': '\u210d',
            'hopf': '\ud835\udd59',
            'horbar': '\u2015',
            'HorizontalLine': '\u2500',
            'Hscr': '\u210b',
            'hscr': '\ud835\udcbd',
            'hslash': '\u210f',
            'Hstrok': '\u0126',
            'hstrok': '\u0127',
            'HumpDownHump': '\u224e',
            'HumpEqual': '\u224f',
            'hybull': '\u2043',
            'hyphen': '\u2010',
            'Iacgr': '\u038a',
            'iacgr': '\u03af',
            'Iacute': '\xcd',
            'iacute': '\xed',
            'ic': '\u2063',
            'Icirc': '\xce',
            'icirc': '\xee',
            'Icy': '\u0418',
            'icy': '\u0438',
            'idiagr': '\u0390',
            'Idigr': '\u03aa',
            'idigr': '\u03ca',
            'Idot': '\u0130',
            'IEcy': '\u0415',
            'iecy': '\u0435',
            'iexcl': '\xa1',
            'iff': '\u21d4',
            'Ifr': '\u2111',
            'ifr': '\ud835\udd26',
            'Igr': '\u0399',
            'igr': '\u03b9',
            'Igrave': '\xcc',
            'igrave': '\xec',
            'ii': '\u2148',
            'iiiint': '\u2a0c',
            'iiint': '\u222d',
            'iinfin': '\u29dc',
            'iiota': '\u2129',
            'IJlig': '\u0132',
            'ijlig': '\u0133',
            'Im': '\u2111',
            'Imacr': '\u012a',
            'imacr': '\u012b',
            'image': '\u2111',
            'ImaginaryI': '\u2148',
            'imagline': '\u2110',
            'imagpart': '\u2111',
            'imath': '\u0131',
            'imof': '\u22b7',
            'imped': '\u01b5',
            'Implies': '\u21d2',
            'in': '\u2208',
            'incare': '\u2105',
            'infin': '\u221e',
            'infintie': '\u29dd',
            'inodot': '\u0131',
            'int': '\u222b',
            'Int': '\u222c',
            'intcal': '\u22ba',
            'integers': '\u2124',
            'Integral': '\u222b',
            'intercal': '\u22ba',
            'Intersection': '\u22c2',
            'intlarhk': '\u2a17',
            'intprod': '\u2a3c',
            'InvisibleComma': '\u2063',
            'InvisibleTimes': '\u2062',
            'IOcy': '\u0401',
            'iocy': '\u0451',
            'Iogon': '\u012e',
            'iogon': '\u012f',
            'Iopf': '\ud835\udd40',
            'iopf': '\ud835\udd5a',
            'Iota': '\u0399',
            'iota': '\u03b9',
            'iprod': '\u2a3c',
            'iquest': '\xbf',
            'Iscr': '\u2110',
            'iscr': '\ud835\udcbe',
            'isin': '\u2208',
            'isindot': '\u22f5',
            'isinE': '\u22f9',
            'isins': '\u22f4',
            'isinsv': '\u22f3',
            'isinv': '\u2208',
            'it': '\u2062',
            'Itilde': '\u0128',
            'itilde': '\u0129',
            'Iukcy': '\u0406',
            'iukcy': '\u0456',
            'Iuml': '\xcf',
            'iuml': '\xef',
            'Jcirc': '\u0134',
            'jcirc': '\u0135',
            'Jcy': '\u0419',
            'jcy': '\u0439',
            'Jfr': '\ud835\udd0d',
            'jfr': '\ud835\udd27',
            'jmath': '\x6a',
            'Jopf': '\ud835\udd41',
            'jopf': '\ud835\udd5b',
            'Jscr': '\ud835\udca5',
            'jscr': '\ud835\udcbf',
            'Jsercy': '\u0408',
            'jsercy': '\u0458',
            'Jukcy': '\u0404',
            'jukcy': '\u0454',
            'Kappa': '\u039a',
            'kappa': '\u03ba',
            'kappav': '\u03f0',
            'Kcedil': '\u0136',
            'kcedil': '\u0137',
            'Kcy': '\u041a',
            'kcy': '\u043a',
            'Kfr': '\ud835\udd0e',
            'kfr': '\ud835\udd28',
            'Kgr': '\u039a',
            'kgr': '\u03ba',
            'kgreen': '\u0138',
            'KHcy': '\u0425',
            'khcy': '\u0445',
            'KHgr': '\u03a7',
            'khgr': '\u03c7',
            'KJcy': '\u040c',
            'kjcy': '\u045c',
            'Kopf': '\ud835\udd42',
            'kopf': '\ud835\udd5c',
            'Kscr': '\ud835\udca6',
            'kscr': '\ud835\udcc0',
            'lAarr': '\u21da',
            'Lacute': '\u0139',
            'lacute': '\u013a',
            'laemptyv': '\u29b4',
            'lagran': '\u2112',
            'Lambda': '\u039b',
            'lambda': '\u03bb',
            'lang': '\u2329',
            'Lang': '\u300a',
            'langd': '\u2991',
            'langle': '\u2329',
            'lap': '\u2a85',
            'Laplacetrf': '\u2112',
            'laquo': '\xab',
            'larr': '\u2190',
            'Larr': '\u219e',
            'lArr': '\u21d0',
            'larrb': '\u21e4',
            'larrbfs': '\u291f',
            'larrfs': '\u291d',
            'larrhk': '\u21a9',
            'larrlp': '\u21ab',
            'larrpl': '\u2939',
            'larrsim': '\u2973',
            'larrtl': '\u21a2',
            'lat': '\u2aab',
            'latail': '\u2919',
            'lAtail': '\u291b',
            'late': '\u2aad',
            'lates': '\u2aad\ufe00',
            'lbarr': '\u290c',
            'lBarr': '\u290e',
            'lbbrk': '\u3014',
            'lbrace': '\x7b',
            'lbrack': '\x5b',
            'lbrke': '\u298b',
            'lbrksld': '\u298f',
            'lbrkslu': '\u298d',
            'Lcaron': '\u013d',
            'lcaron': '\u013e',
            'Lcedil': '\u013b',
            'lcedil': '\u013c',
            'lceil': '\u2308',
            'lcub': '\x7b',
            'Lcy': '\u041b',
            'lcy': '\u043b',
            'ldca': '\u2936',
            'ldquo': '\u201c',
            'ldquor': '\u201e',
            'ldrdhar': '\u2967',
            'ldrushar': '\u294b',
            'ldsh': '\u21b2',
            'le': '\u2264',
            'lE': '\u2266',
            'LeftAngleBracket': '\u2329',
            'leftarrow': '\u2190',
            'LeftArrow': '\u2190',
            'Leftarrow': '\u21d0',
            'LeftArrowBar': '\u21e4',
            'LeftArrowRightArrow': '\u21c6',
            'leftarrowtail': '\u21a2',
            'LeftBracketingBar': '\uf603',
            'LeftCeiling': '\u2308',
            'LeftDoubleBracket': '\u301a',
            'LeftDoubleBracketingBar': '\uf605',
            'LeftDownTeeVector': '\u2961',
            'LeftDownVector': '\u21c3',
            'LeftDownVectorBar': '\u2959',
            'LeftFloor': '\u230a',
            'leftharpoondown': '\u21bd',
            'leftharpoonup': '\u21bc',
            'leftleftarrows': '\u21c7',
            'leftrightarrow': '\u2194',
            'LeftRightArrow': '\u2194',
            'Leftrightarrow': '\u21d4',
            'leftrightarrows': '\u21c6',
            'leftrightharpoons': '\u21cb',
            'leftrightsquigarrow': '\u21ad',
            'LeftRightVector': '\u294e',
            'LeftTee': '\u22a3',
            'LeftTeeArrow': '\u21a4',
            'LeftTeeVector': '\u295a',
            'leftthreetimes': '\u22cb',
            'LeftTriangle': '\u22b2',
            'LeftTriangleBar': '\u29cf',
            'LeftTriangleEqual': '\u22b4',
            'LeftUpDownVector': '\u2951',
            'LeftUpTeeVector': '\u2960',
            'LeftUpVector': '\u21bf',
            'LeftUpVectorBar': '\u2958',
            'LeftVector': '\u21bc',
            'LeftVectorBar': '\u2952',
            'leg': '\u22da',
            'lEg': '\u2a8b',
            'leq': '\u2264',
            'leqq': '\u2266',
            'leqslant': '\u2a7d',
            'les': '\u2a7d',
            'lescc': '\u2aa8',
            'lesdot': '\u2a7f',
            'lesdoto': '\u2a81',
            'lesdotor': '\u2a83',
            'lesg': '\u22da\ufe00',
            'lesges': '\u2a93',
            'lessapprox': '\u2a85',
            'lessdot': '\u22d6',
            'lesseqgtr': '\u22da',
            'lesseqqgtr': '\u2a8b',
            'LessEqualGreater': '\u22da',
            'LessFullEqual': '\u2266',
            'LessGreater': '\u2276',
            'lessgtr': '\u2276',
            'LessLess': '\u2aa1',
            'lesssim': '\u2272',
            'LessSlantEqual': '\u2a7d',
            'LessTilde': '\u2272',
            'lfisht': '\u297c',
            'lfloor': '\u230a',
            'Lfr': '\ud835\udd0f',
            'lfr': '\ud835\udd29',
            'lg': '\u2276',
            'lgE': '\u2a91',
            'Lgr': '\u039b',
            'lgr': '\u03bb',
            'lHar': '\u2962',
            'lhard': '\u21bd',
            'lharu': '\u21bc',
            'lharul': '\u296a',
            'lhblk': '\u2584',
            'LJcy': '\u0409',
            'ljcy': '\u0459',
            'll': '\u226a',
            'Ll': '\u22d8',
            'llarr': '\u21c7',
            'llcorner': '\u231e',
            'Lleftarrow': '\u21da',
            'llhard': '\u296b',
            'lltri': '\u25fa',
            'Lmidot': '\u013f',
            'lmidot': '\u0140',
            'lmoust': '\u23b0',
            'lmoustache': '\u23b0',
            'lnap': '\u2a89',
            'lnapprox': '\u2a89',
            'lnE': '\u2268',
            'lne': '\u2a87',
            'lneq': '\u2a87',
            'lneqq': '\u2268',
            'lnsim': '\u22e6',
            'loang': '\u3018',
            'loarr': '\u21fd',
            'lobrk': '\u301a',
            'longleftarrow': '\u27f5',
            'LongLeftArrow': '\u27f5',
            'Longleftarrow': '\u27f8',
            'LongLeftRightArrow': '\u27f7',
            'longleftrightarrow': '\u27f7',
            'Longleftrightarrow': '\u27fa',
            'longmapsto': '\u27fc',
            'LongRightArrow': '\u27f6',
            'longrightarrow': '\u27f6',
            'Longrightarrow': '\u27f9',
            'looparrowleft': '\u21ab',
            'looparrowright': '\u21ac',
            'lopar': '\u2985',
            'Lopf': '\ud835\udd43',
            'lopf': '\ud835\udd5d',
            'loplus': '\u2a2d',
            'lotimes': '\u2a34',
            'lowast': '\u2217',
            'lowbar': '\x5f',
            'LowerLeftArrow': '\u2199',
            'LowerRightArrow': '\u2198',
            'loz': '\u25ca',
            'lozenge': '\u25ca',
            'lozf': '\u29eb',
            'lpar': '\x28',
            'lparlt': '\u2993',
            'lrarr': '\u21c6',
            'lrcorner': '\u231f',
            'lrhar': '\u21cb',
            'lrhard': '\u296d',
            'lrm': '\u200e',
            'lrtri': '\u22bf',
            'lsaquo': '\u2039',
            'Lscr': '\u2112',
            'lscr': '\ud835\udcc1',
            'lsh': '\u21b0',
            'Lsh': '\u21b0',
            'lsim': '\u2272',
            'lsime': '\u2a8d',
            'lsimg': '\u2a8f',
            'lsqb': '\x5b',
            'lsquo': '\u2018',
            'lsquor': '\u201a',
            'Lstrok': '\u0141',
            'lstrok': '\u0142',
            'Lt': '\u226a',
            'ltcc': '\u2aa6',
            'ltcir': '\u2a79',
            'ltdot': '\u22d6',
            'lthree': '\u22cb',
            'ltimes': '\u22c9',
            'ltlarr': '\u2976',
            'ltquest': '\u2a7b',
            'ltri': '\u25c3',
            'ltrie': '\u22b4',
            'ltrif': '\u25c2',
            'ltrPar': '\u2996',
            'lurdshar': '\u294a',
            'luruhar': '\u2966',
            'lvertneqq': '\u2268\ufe00',
            'lvnE': '\u2268\ufe00',
            'macr': '\xaf',
            'male': '\u2642',
            'malt': '\u2720',
            'maltese': '\u2720',
            'map': '\u21a6',
            'Map': '\u2905',
            'mapsto': '\u21a6',
            'mapstodown': '\u21a7',
            'mapstoleft': '\u21a4',
            'mapstoup': '\u21a5',
            'marker': '\u25ae',
            'mcomma': '\u2a29',
            'Mcy': '\u041c',
            'mcy': '\u043c',
            'mdash': '\u2014',
            'mDDot': '\u223a',
            'measuredangle': '\u2221',
            'MediumSpace': '\u205f',
            'Mellintrf': '\u2133',
            'Mfr': '\ud835\udd10',
            'mfr': '\ud835\udd2a',
            'Mgr': '\u039c',
            'mgr': '\u03bc',
            'mho': '\u2127',
            'micro': '\xb5',
            'mid': '\u2223',
            'midast': '\x2a',
            'midcir': '\u2af0',
            'middot': '\xb7',
            'minus': '\u2212',
            'minusb': '\u229f',
            'minusd': '\u2238',
            'minusdu': '\u2a2a',
            'MinusPlus': '\u2213',
            'mlcp': '\u2adb',
            'mldr': '\u2026',
            'mnplus': '\u2213',
            'models': '\u22a7',
            'Mopf': '\ud835\udd44',
            'mopf': '\ud835\udd5e',
            'mp': '\u2213',
            'Mscr': '\u2133',
            'mscr': '\ud835\udcc2',
            'mstpos': '\u223e',
            'Mu': '\u039c',
            'mu': '\u03bc',
            'multimap': '\u22b8',
            'mumap': '\u22b8',
            'nabla': '\u2207',
            'Nacute': '\u0143',
            'nacute': '\u0144',
            'nang': '\u2220\u20d2',
            'nap': '\u2249',
            'napE': '\u2a70\u0338',
            'napid': '\u224b\u0338',
            'napos': '\u0149',
            'napprox': '\u2249',
            'natur': '\u266e',
            'natural': '\u266e',
            'naturals': '\u2115',
            'nbsp': '\xa0',
            'nbump': '\u224e\u0338',
            'nbumpe': '\u224f\u0338',
            'ncap': '\u2a43',
            'Ncaron': '\u0147',
            'ncaron': '\u0148',
            'Ncedil': '\u0145',
            'ncedil': '\u0146',
            'ncong': '\u2247',
            'ncongdot': '\u2a6d\u0338',
            'ncup': '\u2a42',
            'Ncy': '\u041d',
            'ncy': '\u043d',
            'ndash': '\u2013',
            'ne': '\u2260',
            'nearhk': '\u2924',
            'nearr': '\u2197',
            'neArr': '\u21d7',
            'nearrow': '\u2197',
            'nedot': '\u2250\u0338',
            'NegativeMediumSpace': '\u200b',
            'NegativeThickSpace': '\u200b',
            'NegativeThinSpace': '\u200b',
            'NegativeVeryThinSpace': '\u200b',
            'nequiv': '\u2262',
            'nesear': '\u2928',
            'nesim': '\u2242\u0338',
            'NestedGreaterGreater': '\u226b',
            'NestedLessLess': '\u226a',
            'NewLine': '\n',
            'nexist': '\u2204',
            'nexists': '\u2204',
            'Nfr': '\ud835\udd11',
            'nfr': '\ud835\udd2b',
            'ngE': '\u2267\u0338',
            'nge': '\u2271',
            'ngeq': '\u2271',
            'ngeqq': '\u2267\u0338',
            'ngeqslant': '\u2a7e\u0338',
            'nges': '\u2a7e\u0338',
            'nGg': '\u22d9\u0338',
            'Ngr': '\u039d',
            'ngr': '\u03bd',
            'ngsim': '\u2275',
            'nGt': '\u226b\u20d2',
            'ngt': '\u226f',
            'ngtr': '\u226f',
            'nGtv': '\u226b\u0338',
            'nharr': '\u21ae',
            'nhArr': '\u21ce',
            'nhpar': '\u2af2',
            'ni': '\u220b',
            'nis': '\u22fc',
            'nisd': '\u22fa',
            'niv': '\u220b',
            'NJcy': '\u040a',
            'njcy': '\u045a',
            'nlarr': '\u219a',
            'nlArr': '\u21cd',
            'nldr': '\u2025',
            'nlE': '\u2266\u0338',
            'nle': '\u2270',
            'nleftarrow': '\u219a',
            'nLeftarrow': '\u21cd',
            'nleftrightarrow': '\u21ae',
            'nLeftrightarrow': '\u21ce',
            'nleq': '\u2270',
            'nleqq': '\u2266\u0338',
            'nleqslant': '\u2a7d\u0338',
            'nles': '\u2a7d\u0338',
            'nless': '\u226e',
            'nLl': '\u22d8\u0338',
            'nlsim': '\u2274',
            'nLt': '\u226a\u20d2',
            'nlt': '\u226e',
            'nltri': '\u22ea',
            'nltrie': '\u22ec',
            'nLtv': '\u226a\u0338',
            'nmid': '\u2224',
            'NoBreak': '\u2060',
            'NonBreakingSpace': '\xa0',
            'Nopf': '\u2115',
            'nopf': '\ud835\udd5f',
            'not': '\xac',
            'Not': '\u2aec',
            'NotCongruent': '\u2262',
            'NotCupCap': '\u226d',
            'NotDoubleVerticalBar': '\u2226',
            'NotElement': '\u2209',
            'NotEqual': '\u2260',
            'NotEqualTilde': '\u2242\u0338',
            'NotExists': '\u2204',
            'NotGreater': '\u226f',
            'NotGreaterEqual': '\u2271',
            'NotGreaterFullEqual': '\u2266\u0338',
            'NotGreaterGreater': '\u226b\u0338',
            'NotGreaterLess': '\u2279',
            'NotGreaterSlantEqual': '\u2a7e\u0338',
            'NotGreaterTilde': '\u2275',
            'NotHumpDownHump': '\u224e\u0338',
            'NotHumpEqual': '\u224f\u0338',
            'notin': '\u2209',
            'notindot': '\u22f5\u0338',
            'notinE': '\u22f9\u0338',
            'notinva': '\u2209',
            'notinvb': '\u22f7',
            'notinvc': '\u22f6',
            'NotLeftTriangle': '\u22ea',
            'NotLeftTriangleBar': '\u29cf\u0338',
            'NotLeftTriangleEqual': '\u22ec',
            'NotLess': '\u226e',
            'NotLessEqual': '\u2270',
            'NotLessGreater': '\u2278',
            'NotLessLess': '\u226a\u0338',
            'NotLessSlantEqual': '\u2a7d\u0338',
            'NotLessTilde': '\u2274',
            'NotNestedGreaterGreater': '\u2aa2\u0338',
            'NotNestedLessLess': '\u2aa1\u0338',
            'notni': '\u220c',
            'notniva': '\u220c',
            'notnivb': '\u22fe',
            'notnivc': '\u22fd',
            'NotPrecedes': '\u2280',
            'NotPrecedesEqual': '\u2aaf\u0338',
            'NotPrecedesSlantEqual': '\u22e0',
            'NotReverseElement': '\u220c',
            'NotRightTriangle': '\u22eb',
            'NotRightTriangleBar': '\u29d0\u0338',
            'NotRightTriangleEqual': '\u22ed',
            'NotSquareSubset': '\u228f\u0338',
            'NotSquareSubsetEqual': '\u22e2',
            'NotSquareSuperset': '\u2290\u0338',
            'NotSquareSupersetEqual': '\u22e3',
            'NotSubset': '\u2282\u20d2',
            'NotSubsetEqual': '\u2288',
            'NotSucceeds': '\u2281',
            'NotSucceedsEqual': '\u2ab0\u0338',
            'NotSucceedsSlantEqual': '\u22e1',
            'NotSucceedsTilde': '\u227f\u0338',
            'NotSuperset': '\u2283\u20d2',
            'NotSupersetEqual': '\u2289',
            'NotTilde': '\u2241',
            'NotTildeEqual': '\u2244',
            'NotTildeFullEqual': '\u2247',
            'NotTildeTilde': '\u2249',
            'NotVerticalBar': '\u2224',
            'npar': '\u2226',
            'nparallel': '\u2226',
            'nparsl': '\u2afd\u20e5',
            'npart': '\u2202\u0338',
            'npolint': '\u2a14',
            'npr': '\u2280',
            'nprcue': '\u22e0',
            'npre': '\u2aaf\u0338',
            'nprec': '\u2280',
            'npreceq': '\u2aaf\u0338',
            'nrarr': '\u219b',
            'nrArr': '\u21cf',
            'nrarrc': '\u2933\u0338',
            'nrarrw': '\u219d\u0338',
            'nrightarrow': '\u219b',
            'nRightarrow': '\u21cf',
            'nrtri': '\u22eb',
            'nrtrie': '\u22ed',
            'nsc': '\u2281',
            'nsccue': '\u22e1',
            'nsce': '\u2ab0\u0338',
            'Nscr': '\ud835\udca9',
            'nscr': '\ud835\udcc3',
            'nshortmid': '\u2224',
            'nshortparallel': '\u2226',
            'nsim': '\u2241',
            'nsime': '\u2244',
            'nsimeq': '\u2244',
            'nsmid': '\u2224',
            'nspar': '\u2226',
            'nsqsube': '\u22e2',
            'nsqsupe': '\u22e3',
            'nsub': '\u2284',
            'nsube': '\u2288',
            'nsubE': '\u2ac5\u0338',
            'nsubset': '\u2282\u20d2',
            'nsubseteq': '\u2288',
            'nsubseteqq': '\u2ac5\u0338',
            'nsucc': '\u2281',
            'nsucceq': '\u2ab0\u0338',
            'nsup': '\u2285',
            'nsupe': '\u2289',
            'nsupE': '\u2ac6\u0338',
            'nsupset': '\u2283\u20d2',
            'nsupseteq': '\u2289',
            'nsupseteqq': '\u2ac6\u0338',
            'ntgl': '\u2279',
            'Ntilde': '\xd1',
            'ntilde': '\xf1',
            'ntlg': '\u2278',
            'ntriangleleft': '\u22ea',
            'ntrianglelefteq': '\u22ec',
            'ntriangleright': '\u22eb',
            'ntrianglerighteq': '\u22ed',
            'Nu': '\u039d',
            'nu': '\u03bd',
            'num': '\x23',
            'numero': '\u2116',
            'numsp': '\u2007',
            'nvap': '\u224d\u20d2',
            'nvdash': '\u22ac',
            'nvDash': '\u22ad',
            'nVdash': '\u22ae',
            'nVDash': '\u22af',
            'nvge': '\u2265\u20d2',
            'nvgt': '\x3e\u20d2',
            'nvHarr': '\u2904',
            'nvinfin': '\u29de',
            'nvlArr': '\u2902',
            'nvle': '\u2264\u20d2',
            'nvlt': '\x3c\u20d2',
            'nvltrie': '\u22b4\u20d2',
            'nvrArr': '\u2903',
            'nvrtrie': '\u22b5\u20d2',
            'nvsim': '\u223c\u20d2',
            'nwarhk': '\u2923',
            'nwarr': '\u2196',
            'nwArr': '\u21d6',
            'nwarrow': '\u2196',
            'nwnear': '\u2927',
            'Oacgr': '\u038c',
            'oacgr': '\u03cc',
            'Oacute': '\xd3',
            'oacute': '\xf3',
            'oast': '\u229b',
            'ocir': '\u229a',
            'Ocirc': '\xd4',
            'ocirc': '\xf4',
            'Ocy': '\u041e',
            'ocy': '\u043e',
            'odash': '\u229d',
            'Odblac': '\u0150',
            'odblac': '\u0151',
            'odiv': '\u2a38',
            'odot': '\u2299',
            'odsold': '\u29bc',
            'OElig': '\u0152',
            'oelig': '\u0153',
            'ofcir': '\u29bf',
            'Ofr': '\ud835\udd12',
            'ofr': '\ud835\udd2c',
            'ogon': '\u02db',
            'Ogr': '\u039f',
            'ogr': '\u03bf',
            'Ograve': '\xd2',
            'ograve': '\xf2',
            'ogt': '\u29c1',
            'OHacgr': '\u038f',
            'ohacgr': '\u03ce',
            'ohbar': '\u29b5',
            'OHgr': '\u03a9',
            'ohgr': '\u03c9',
            'ohm': '\u2126',
            'oint': '\u222e',
            'olarr': '\u21ba',
            'olcir': '\u29be',
            'olcross': '\u29bb',
            'oline': '\u203e',
            'olt': '\u29c0',
            'Omacr': '\u014c',
            'omacr': '\u014d',
            'Omega': '\u03a9',
            'omega': '\u03c9',
            'Omicron': '\u039f',
            'omicron': '\u03bf',
            'omid': '\u29b6',
            'ominus': '\u2296',
            'Oopf': '\ud835\udd46',
            'oopf': '\ud835\udd60',
            'opar': '\u29b7',
            'OpenCurlyDoubleQuote': '\u201c',
            'OpenCurlyQuote': '\u2018',
            'operp': '\u29b9',
            'oplus': '\u2295',
            'or': '\u2228',
            'Or': '\u2a54',
            'orarr': '\u21bb',
            'ord': '\u2a5d',
            'order': '\u2134',
            'orderof': '\u2134',
            'ordf': '\xaa',
            'ordm': '\xba',
            'origof': '\u22b6',
            'oror': '\u2a56',
            'orslope': '\u2a57',
            'orv': '\u2a5b',
            'oS': '\u24c8',
            'oscr': '\u2134',
            'Oscr': '\ud835\udcaa',
            'Oslash': '\xd8',
            'oslash': '\xf8',
            'osol': '\u2298',
            'Otilde': '\xd5',
            'otilde': '\xf5',
            'otimes': '\u2297',
            'Otimes': '\u2a37',
            'otimesas': '\u2a36',
            'Ouml': '\xd6',
            'ouml': '\xf6',
            'ovbar': '\u233d',
            'OverBar': '\xaf',
            'OverBrace': '\ufe37',
            'OverBracket': '\u23b4',
            'OverParenthesis': '\ufe35',
            'par': '\u2225',
            'para': '\xb6',
            'parallel': '\u2225',
            'parsim': '\u2af3',
            'parsl': '\u2afd',
            'part': '\u2202',
            'PartialD': '\u2202',
            'Pcy': '\u041f',
            'pcy': '\u043f',
            'percnt': '\x25',
            'period': '\x2e',