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(function() {
if (typeof twttr === "undefined" || twttr === null) {
var twttr = {};
}
twttr.txt = {};
twttr.txt.regexen = {};
var HTML_ENTITIES = {
'&': '&',
'>': '>',
'<': '<',
'"': '"',
"'": '''
};
// HTML escaping
twttr.txt.htmlEscape = function(text) {
return text && text.replace(/[&"'><]/g, function(character) {
return HTML_ENTITIES[character];
});
};
// Builds a RegExp
function regexSupplant(regex, flags) {
flags = flags || "";
if (typeof regex !== "string") {
if (regex.global && flags.indexOf("g") < 0) {
flags += "g";
}
if (regex.ignoreCase && flags.indexOf("i") < 0) {
flags += "i";
}
if (regex.multiline && flags.indexOf("m") < 0) {
flags += "m";
}
regex = regex.source;
}
return new RegExp(regex.replace(/#\{(\w+)\}/g, function(match, name) {
var newRegex = twttr.txt.regexen[name] || "";
if (typeof newRegex !== "string") {
newRegex = newRegex.source;
}
return newRegex;
}), flags);
}
twttr.txt.regexSupplant = regexSupplant;
// simple string interpolation
function stringSupplant(str, values) {
return str.replace(/#\{(\w+)\}/g, function(match, name) {
return values[name] || "";
});
}
twttr.txt.stringSupplant = stringSupplant;
function addCharsToCharClass(charClass, start, end) {
var s = String.fromCharCode(start);
if (end !== start) {
s += "-" + String.fromCharCode(end);
}
charClass.push(s);
return charClass;
}
twttr.txt.addCharsToCharClass = addCharsToCharClass;
// Space is more than %20, U+3000 for example is the full-width space used with Kanji. Provide a short-hand
// to access both the list of characters and a pattern suitible for use with String#split
// Taken from: ActiveSupport::Multibyte::Handlers::UTF8Handler::UNICODE_WHITESPACE
var fromCode = String.fromCharCode;
var UNICODE_SPACES = [
fromCode(0x0020), // White_Space # Zs SPACE
fromCode(0x0085), // White_Space # Cc <control-0085>
fromCode(0x00A0), // White_Space # Zs NO-BREAK SPACE
fromCode(0x1680), // White_Space # Zs OGHAM SPACE MARK
fromCode(0x180E), // White_Space # Zs MONGOLIAN VOWEL SEPARATOR
fromCode(0x2028), // White_Space # Zl LINE SEPARATOR
fromCode(0x2029), // White_Space # Zp PARAGRAPH SEPARATOR
fromCode(0x202F), // White_Space # Zs NARROW NO-BREAK SPACE
fromCode(0x205F), // White_Space # Zs MEDIUM MATHEMATICAL SPACE
fromCode(0x3000) // White_Space # Zs IDEOGRAPHIC SPACE
];
addCharsToCharClass(UNICODE_SPACES, 0x009, 0x00D); // White_Space # Cc [5] <control-0009>..<control-000D>
addCharsToCharClass(UNICODE_SPACES, 0x2000, 0x200A); // White_Space # Zs [11] EN QUAD..HAIR SPACE
var INVALID_CHARS = [
fromCode(0xFFFE),
fromCode(0xFEFF), // BOM
fromCode(0xFFFF) // Special
];
addCharsToCharClass(INVALID_CHARS, 0x202A, 0x202E); // Directional change
twttr.txt.regexen.spaces_group = regexSupplant(UNICODE_SPACES.join(""));
twttr.txt.regexen.spaces = regexSupplant("[" + UNICODE_SPACES.join("") + "]");
twttr.txt.regexen.invalid_chars_group = regexSupplant(INVALID_CHARS.join(""));
twttr.txt.regexen.punct = /\!'#%&'\(\)*\+,\\\-\.\/:;<=>\?@\[\]\^_{|}~\$/;
twttr.txt.regexen.rtl_chars = /[\u0600-\u06FF]|[\u0750-\u077F]|[\u0590-\u05FF]|[\uFE70-\uFEFF]/mg;
twttr.txt.regexen.non_bmp_code_pairs = /[\uD800-\uDBFF][\uDC00-\uDFFF]/mg;
var latinAccentChars = [];
// Latin accented characters (subtracted 0xD7 from the range, it's a confusable multiplication sign. Looks like "x")
addCharsToCharClass(latinAccentChars, 0x00c0, 0x00d6);
addCharsToCharClass(latinAccentChars, 0x00d8, 0x00f6);
addCharsToCharClass(latinAccentChars, 0x00f8, 0x00ff);
// Latin Extended A and B
addCharsToCharClass(latinAccentChars, 0x0100, 0x024f);
// assorted IPA Extensions
addCharsToCharClass(latinAccentChars, 0x0253, 0x0254);
addCharsToCharClass(latinAccentChars, 0x0256, 0x0257);
addCharsToCharClass(latinAccentChars, 0x0259, 0x0259);
addCharsToCharClass(latinAccentChars, 0x025b, 0x025b);
addCharsToCharClass(latinAccentChars, 0x0263, 0x0263);
addCharsToCharClass(latinAccentChars, 0x0268, 0x0268);
addCharsToCharClass(latinAccentChars, 0x026f, 0x026f);
addCharsToCharClass(latinAccentChars, 0x0272, 0x0272);
addCharsToCharClass(latinAccentChars, 0x0289, 0x0289);
addCharsToCharClass(latinAccentChars, 0x028b, 0x028b);
// Okina for Hawaiian (it *is* a letter character)
addCharsToCharClass(latinAccentChars, 0x02bb, 0x02bb);
// Combining diacritics
addCharsToCharClass(latinAccentChars, 0x0300, 0x036f);
// Latin Extended Additional
addCharsToCharClass(latinAccentChars, 0x1e00, 0x1eff);
twttr.txt.regexen.latinAccentChars = regexSupplant(latinAccentChars.join(""));
var unicodeLettersAndMarks = "A-Za-z\xAA\xB5\xBA\xC0-\xD6\xD8-\xF6\xF8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0370-\u0374\u0376\u0377\u037A-\u037D\u037F\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u052F\u0531-\u0556\u0559\u0561-\u0587\u05D0-\u05EA\u05F0-\u05F2\u0620-\u064A\u066E\u066F\u0671-\u06D3\u06D5\u06E5\u06E6\u06EE\u06EF\u06FA-\u06FC\u06FF\u0710\u0712-\u072F\u074D-\u07A5\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0815\u081A\u0824\u0828\u0840-\u0858\u08A0-\u08B2\u0904-\u0939\u093D\u0950\u0958-\u0961\u0971-\u0980\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD\u09CE\u09DC\u09DD\u09DF-\u09E1\u09F0\u09F1\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A59-\u0A5C\u0A5E\u0A72-\u0A74\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD\u0AD0\u0AE0\u0AE1\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D\u0B5C\u0B5D\u0B5F-\u0B61\u0B71\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BD0\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C39\u0C3D\u0C58\u0C59\u0C60\u0C61\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD\u0CDE\u0CE0\u0CE1\u0CF1\u0CF2\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D\u0D4E\u0D60\u0D61\u0D7A-\u0D7F\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0E01-\u0E30\u0E32\u0E33\u0E40-\u0E46\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\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F88-\u0F8C\u1000-\u102A\u103F\u1050-\u1055\u105A-\u105D\u1061\u1065\u1066\u106E-\u1070\u1075-\u1081\u108E\u10A0-\u10C5\u10C7\u10CD\u10D0-\u10FA\u10FC-\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\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16F1-\u16F8\u1700-\u170C\u170E-\u1711\u1720-\u1731\u1740-\u1751\u1760-\u176C\u176E-\u1770\u1780-\u17B3\u17D7\u17DC\u1820-\u1877\u1880-\u18A8\u18AA\u18B0-\u18F5\u1900-\u191E\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19C1-\u19C7\u1A00-\u1A16\u1A20-\u1A54\u1AA7\u1B05-\u1B33\u1B45-\u1B4B\u1B83-\u1BA0\u1BAE\u1BAF\u1BBA-\u1BE5\u1C00-\u1C23\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF1\u1CF5\u1CF6\u1D00-\u1DBF\u1E00-\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\u2071\u207F\u2090-\u209C\u2102\u2107\u210A-\u2113\u2115\u2119-\u211D\u2124\u2126\u2128\u212A-\u212D\u212F-\u2139\u213C-\u213F\u2145-\u2149\u214E\u2183\u2184\u2C00-\u2C2E\u2C30-\u2C5E\u2C60-\u2CE4\u2CEB-\u2CEE\u2CF2\u2CF3\u2D00-\u2D25\u2D27\u2D2D\u2D30-\u2D67\u2D6F\u2D80-\u2D96\u2DA0-\u2DA6\u2DA8-\u2DAE\u2DB0-\u2DB6\u2DB8-\u2DBE\u2DC0-\u2DC6\u2DC8-\u2DCE\u2DD0-\u2DD6\u2DD8-\u2DDE\u2E2F\u3005\u3006\u3031-\u3035\u303B\u303C\u3041-\u3096\u309D-\u309F\u30A1-\u30FA\u30FC-\u30FF\u3105-\u312D\u3131-\u318E\u31A0-\u31BA\u31F0-\u31FF\u3400-\u4DB5\u4E00-\u9FCC\uA000-\uA48C\uA4D0-\uA4FD\uA500-\uA60C\uA610-\uA61F\uA62A\uA62B\uA640-\uA66E\uA67F-\uA69D\uA6A0-\uA6E5\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA7AD\uA7B0\uA7B1\uA7F7-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA822\uA840-\uA873\uA882-\uA8B3\uA8F2-\uA8F7\uA8FB\uA90A-\uA925\uA930-\uA946\uA960-\uA97C\uA984-\uA9B2\uA9CF\uA9E0-\uA9E4\uA9E6-\uA9EF\uA9FA-\uA9FE\uAA00-\uAA28\uAA40-\uAA42\uAA44-\uAA4B\uAA60-\uAA76\uAA7A\uAA7E-\uAAAF\uAAB1\uAAB5\uAAB6\uAAB9-\uAABD\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEA\uAAF2-\uAAF4\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uAB30-\uAB5A\uAB5C-\uAB5F\uAB64\uAB65\uABC0-\uABE2\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\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\uFF21-\uFF3A\uFF41-\uFF5A\uFF66-\uFFBE\uFFC2-\uFFC7\uFFCA-\uFFCF\uFFD2-\uFFD7\uFFDA-\uFFDC\u0300-\u036F\u0483-\u0489\u0591-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u0610-\u061A\u064B-\u065F\u0670\u06D6-\u06DC\u06DF-\u06E4\u06E7\u06E8\u06EA-\u06ED\u0711\u0730-\u074A\u07A6-\u07B0\u07EB-\u07F3\u0816-\u0819\u081B-\u0823\u0825-\u0827\u0829-\u082D\u0859-\u085B\u08E4-\u0903\u093A-\u093C\u093E-\u094F\u0951-\u0957\u0962\u0963\u0981-\u0983\u09BC\u09BE-\u09C4\u09C7\u09C8\u09CB-\u09CD\u09D7\u09E2\u09E3\u0A01-\u0A03\u0A3C\u0A3E-\u0A42\u0A47\u0A48\u0A4B-\u0A4D\u0A51\u0A70\u0A71\u0A75\u0A81-\u0A83\u0ABC\u0ABE-\u0AC5\u0AC7-\u0AC9\u0ACB-\u0ACD\u0AE2\u0AE3\u0B01-\u0B03\u0B3C\u0B3E-\u0B44\u0B47\u0B48\u0B4B-\u0B4D\u0B56\u0B57\u0B62\u0B63\u0B82\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCD\u0BD7\u0C00-\u0C03\u0C3E-\u0C44\u0C46-\u0C48\u0C4A-\u0C4D\u0C55\u0C56\u0C62\u0C63\u0C81-\u0C83\u0CBC\u0CBE-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCD\u0CD5\u0CD6\u0CE2\u0CE3\u0D01-\u0D03\u0D3E-\u0D44\u0D46-\u0D48\u0D4A-\u0D4D\u0D57\u0D62\u0D63\u0D82\u0D83\u0DCA\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E31\u0E34-\u0E3A\u0E47-\u0E4E\u0EB1\u0EB4-\u0EB9\u0EBB\u0EBC\u0EC8-\u0ECD\u0F18\u0F19\u0F35\u0F37\u0F39\u0F3E\u0F3F\u0F71-\u0F84\u0F86\u0F87\u0F8D-\u0F97\u0F99-\u0FBC\u0FC6\u102B-\u103E\u1056-\u1059\u105E-\u1060\u1062-\u1064\u1067-\u106D\u1071-\u1074\u1082-\u108D\u108F\u109A-\u109D\u135D-\u135F\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17B4-\u17D3\u17DD\u180B-\u180D\u18A9\u1920-\u192B\u1930-\u193B\u19B0-\u19C0\u19C8\u19C9\u1A17-\u1A1B\u1A55-\u1A5E\u1A60-\u1A7C\u1A7F\u1AB0-\u1ABE\u1B00-\u1B04\u1B34-\u1B44\u1B6B-\u1B73\u1B80-\u1B82\u1BA1-\u1BAD\u1BE6-\u1BF3\u1C24-\u1C37\u1CD0-\u1CD2\u1CD4-\u1CE8\u1CED\u1CF2-\u1CF4\u1CF8\u1CF9\u1DC0-\u1DF5\u1DFC-\u1DFF\u20D0-\u20F0\u2CEF-\u2CF1\u2D7F\u2DE0-\u2DFF\u302A-\u302F\u3099\u309A\uA66F-\uA672\uA674-\uA67D\uA69F\uA6F0\uA6F1\uA802\uA806\uA80B\uA823-\uA827\uA880\uA881\uA8B4-\uA8C4\uA8E0-\uA8F1\uA926-\uA92D\uA947-\uA953\uA980-\uA983\uA9B3-\uA9C0\uA9E5\uAA29-\uAA36\uAA43\uAA4C\uAA4D\uAA7B-\uAA7D\uAAB0\uAAB2-\uAAB4\uAAB7\uAAB8\uAABE\uAABF\uAAC1\uAAEB-\uAAEF\uAAF5\uAAF6\uABE3-\uABEA\uABEC\uABED\uFB1E\uFE00-\uFE0F\uFE20-\uFE2D";
var unicodeNumbers = "0-9\u0660-\u0669\u06F0-\u06F9\u07C0-\u07C9\u0966-\u096F\u09E6-\u09EF\u0A66-\u0A6F\u0AE6-\u0AEF\u0B66-\u0B6F\u0BE6-\u0BEF\u0C66-\u0C6F\u0CE6-\u0CEF\u0D66-\u0D6F\u0DE6-\u0DEF\u0E50-\u0E59\u0ED0-\u0ED9\u0F20-\u0F29\u1040-\u1049\u1090-\u1099\u17E0-\u17E9\u1810-\u1819\u1946-\u194F\u19D0-\u19D9\u1A80-\u1A89\u1A90-\u1A99\u1B50-\u1B59\u1BB0-\u1BB9\u1C40-\u1C49\u1C50-\u1C59\uA620-\uA629\uA8D0-\uA8D9\uA900-\uA909\uA9D0-\uA9D9\uA9F0-\uA9F9\uAA50-\uAA59\uABF0-\uABF9\uFF10-\uFF19";
var hashtagSpecialChars = "_\u200c\u200d\ua67e\u05be\u05f3\u05f4\u309b\u309c\u30a0\u30fb\u3003\u0f0b\u0f0c\u00b7";
// A hashtag must contain at least one unicode letter or mark, as well as numbers, underscores, and select special characters.
twttr.txt.regexen.hashSigns = /[#＃]/;
twttr.txt.regexen.hashtagAlpha = new RegExp("[" + unicodeLettersAndMarks + "]");
twttr.txt.regexen.hashtagAlphaNumeric = new RegExp("[" + unicodeLettersAndMarks + unicodeNumbers + hashtagSpecialChars + "]");
twttr.txt.regexen.endHashtagMatch = regexSupplant(/^(?:#{hashSigns}|:\/\/)/);
twttr.txt.regexen.hashtagBoundary = new RegExp("(?:^|$|[^&" + unicodeLettersAndMarks + unicodeNumbers + hashtagSpecialChars + "])");
twttr.txt.regexen.validHashtag = regexSupplant(/(#{hashtagBoundary})(#{hashSigns})(#{hashtagAlphaNumeric}*#{hashtagAlpha}#{hashtagAlphaNumeric}*)/gi);
// Mention related regex collection
twttr.txt.regexen.validMentionPrecedingChars = /(?:^|[^a-zA-Z0-9_!#$%&*@＠]|(?:^|[^a-zA-Z0-9_+~.-])(?:rt|RT|rT|Rt):?)/;
twttr.txt.regexen.atSigns = /[@＠]/;
twttr.txt.regexen.validMentionOrList = regexSupplant(
'(#{validMentionPrecedingChars})' + // $1: Preceding character
'(#{atSigns})' + // $2: At mark
'([a-zA-Z0-9_]{1,20})' + // $3: Screen name
'(\/[a-zA-Z][a-zA-Z0-9_\-]{0,24})?' // $4: List (optional)
, 'g');
twttr.txt.regexen.validReply = regexSupplant(/^(?:#{spaces})*#{atSigns}([a-zA-Z0-9_]{1,20})/);
twttr.txt.regexen.endMentionMatch = regexSupplant(/^(?:#{atSigns}|[#{latinAccentChars}]|:\/\/)/);
// URL related regex collection
twttr.txt.regexen.validUrlPrecedingChars = regexSupplant(/(?:[^A-Za-z0-9@＠$#＃#{invalid_chars_group}]|^)/);
twttr.txt.regexen.invalidUrlWithoutProtocolPrecedingChars = /[-_.\/]$/;
twttr.txt.regexen.invalidDomainChars = stringSupplant("#{punct}#{spaces_group}#{invalid_chars_group}", twttr.txt.regexen);
twttr.txt.regexen.validDomainChars = regexSupplant(/[^#{invalidDomainChars}]/);
twttr.txt.regexen.validSubdomain = regexSupplant(/(?:(?:#{validDomainChars}(?:[_-]|#{validDomainChars})*)?#{validDomainChars}\.)/);
twttr.txt.regexen.validDomainName = regexSupplant(/(?:(?:#{validDomainChars}(?:-|#{validDomainChars})*)?#{validDomainChars}\.)/);
twttr.txt.regexen.validGTLD = regexSupplant(RegExp(
'(?:(?:' +
'abb|abbott|abogado|academy|accenture|accountant|accountants|aco|active|actor|ads|adult|aeg|aero|' +
'afl|agency|aig|airforce|airtel|allfinanz|alsace|amsterdam|android|apartments|app|aquarelle|' +
'archi|army|arpa|asia|associates|attorney|auction|audio|auto|autos|axa|azure|band|bank|bar|' +
'barcelona|barclaycard|barclays|bargains|bauhaus|bayern|bbc|bbva|bcn|beer|bentley|berlin|best|' +
'bet|bharti|bible|bid|bike|bing|bingo|bio|biz|black|blackfriday|bloomberg|blue|bmw|bnl|' +
'bnpparibas|boats|bond|boo|boots|boutique|bradesco|bridgestone|broker|brother|brussels|budapest|' +
'build|builders|business|buzz|bzh|cab|cafe|cal|camera|camp|cancerresearch|canon|capetown|capital|' +
'caravan|cards|care|career|careers|cars|cartier|casa|cash|casino|cat|catering|cba|cbn|ceb|center|' +
'ceo|cern|cfa|cfd|chanel|channel|chat|cheap|chloe|christmas|chrome|church|cisco|citic|city|' +
'claims|cleaning|click|clinic|clothing|cloud|club|coach|codes|coffee|college|cologne|com|' +
'commbank|community|company|computer|condos|construction|consulting|contractors|cooking|cool|' +
'coop|corsica|country|coupons|courses|credit|creditcard|cricket|crown|crs|cruises|cuisinella|' +
'cymru|cyou|dabur|dad|dance|date|dating|datsun|day|dclk|deals|degree|delivery|delta|democrat|' +
'dental|dentist|desi|design|dev|diamonds|diet|digital|direct|directory|discount|dnp|docs|dog|' +
'doha|domains|doosan|download|drive|durban|dvag|earth|eat|edu|education|email|emerck|energy|' +
'engineer|engineering|enterprises|epson|equipment|erni|esq|estate|eurovision|eus|events|everbank|' +
'exchange|expert|exposed|express|fage|fail|faith|family|fan|fans|farm|fashion|feedback|film|' +
'finance|financial|firmdale|fish|fishing|fit|fitness|flights|florist|flowers|flsmidth|fly|foo|' +
'football|forex|forsale|forum|foundation|frl|frogans|fund|furniture|futbol|fyi|gal|gallery|game|' +
'garden|gbiz|gdn|gent|genting|ggee|gift|gifts|gives|giving|glass|gle|global|globo|gmail|gmo|gmx|' +
'gold|goldpoint|golf|goo|goog|google|gop|gov|graphics|gratis|green|gripe|group|guge|guide|' +
'guitars|guru|hamburg|hangout|haus|healthcare|help|here|hermes|hiphop|hitachi|hiv|hockey|' +
'holdings|holiday|homedepot|homes|honda|horse|host|hosting|hoteles|hotmail|house|how|hsbc|ibm|' +
'icbc|ice|icu|ifm|iinet|immo|immobilien|industries|infiniti|info|ing|ink|institute|insure|int|' +
'international|investments|ipiranga|irish|ist|istanbul|itau|iwc|java|jcb|jetzt|jewelry|jlc|jll|' +
'jobs|joburg|jprs|juegos|kaufen|kddi|kim|kitchen|kiwi|koeln|komatsu|krd|kred|kyoto|lacaixa|' +
'lancaster|land|lasalle|lat|latrobe|law|lawyer|lds|lease|leclerc|legal|lexus|lgbt|liaison|lidl|' +
'life|lighting|limited|limo|link|live|lixil|loan|loans|lol|london|lotte|lotto|love|ltda|lupin|' +
'luxe|luxury|madrid|maif|maison|man|management|mango|market|marketing|markets|marriott|mba|media|' +
'meet|melbourne|meme|memorial|men|menu|miami|microsoft|mil|mini|mma|mobi|moda|moe|mom|monash|' +
'money|montblanc|mormon|mortgage|moscow|motorcycles|mov|movie|movistar|mtn|mtpc|museum|nadex|' +
'nagoya|name|navy|nec|net|netbank|network|neustar|new|news|nexus|ngo|nhk|nico|ninja|nissan|nokia|' +
'nra|nrw|ntt|nyc|office|okinawa|omega|one|ong|onl|online|ooo|oracle|orange|org|organic|osaka|' +
'otsuka|ovh|page|panerai|paris|partners|parts|party|pet|pharmacy|philips|photo|photography|' +
'photos|physio|piaget|pics|pictet|pictures|pink|pizza|place|play|plumbing|plus|pohl|poker|porn|' +
'post|praxi|press|pro|prod|productions|prof|properties|property|pub|qpon|quebec|racing|realtor|' +
'realty|recipes|red|redstone|rehab|reise|reisen|reit|ren|rent|rentals|repair|report|republican|' +
'rest|restaurant|review|reviews|rich|ricoh|rio|rip|rocks|rodeo|rsvp|ruhr|run|ryukyu|saarland|' +
'sakura|sale|samsung|sandvik|sandvikcoromant|sanofi|sap|sarl|saxo|sca|scb|schmidt|scholarships|' +
'school|schule|schwarz|science|scor|scot|seat|seek|sener|services|sew|sex|sexy|shiksha|shoes|' +
'show|shriram|singles|site|ski|sky|skype|sncf|soccer|social|software|sohu|solar|solutions|sony|' +
'soy|space|spiegel|spreadbetting|srl|starhub|statoil|studio|study|style|sucks|supplies|supply|' +
'support|surf|surgery|suzuki|swatch|swiss|sydney|systems|taipei|tatamotors|tatar|tattoo|tax|taxi|' +
'team|tech|technology|tel|telefonica|temasek|tennis|thd|theater|tickets|tienda|tips|tires|tirol|' +
'today|tokyo|tools|top|toray|toshiba|tours|town|toyota|toys|trade|trading|training|travel|trust|' +
'tui|ubs|university|uno|uol|vacations|vegas|ventures|vermögensberater|vermögensberatung|' +
'versicherung|vet|viajes|video|villas|vin|vision|vista|vistaprint|vlaanderen|vodka|vote|voting|' +
'voto|voyage|wales|walter|wang|watch|webcam|website|wed|wedding|weir|whoswho|wien|wiki|' +
'williamhill|win|windows|wine|wme|work|works|world|wtc|wtf|xbox|xerox|xin|xperia|xxx|xyz|yachts|' +
'yandex|yodobashi|yoga|yokohama|youtube|zip|zone|zuerich|дети|ком|москва|онлайн|орг|рус|сайт|קום|' +
'بازار|شبكة|كوم|موقع|कॉम|नेट|संगठन|คอม|みんな|グーグル|コム|世界|中信|中文网|企业|佛山|信息|健康|八卦|公司|公益|商城|商店|商标|在线|大拿|' +
'娱乐|工行|广东|慈善|我爱你|手机|政务|政府|新闻|时尚|机构|淡马锡|游戏|点看|移动|组织机构|网址|网店|网络|谷歌|集团|飞利浦|餐厅|닷넷|닷컴|삼성|onion' +
')(?=[^0-9a-zA-Z@]|$))'));
twttr.txt.regexen.validCCTLD = regexSupplant(RegExp(
'(?:(?:' +
'ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bl|bm|bn|bo|bq|' +
'br|bs|bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cw|cx|cy|cz|de|dj|dk|dm|do|dz|' +
'ec|ee|eg|eh|er|es|et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|' +
'gy|hk|hm|hn|hr|ht|hu|id|ie|il|im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|' +
'la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|me|mf|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|' +
'my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|' +
'rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|ss|st|su|sv|sx|sy|sz|tc|td|tf|tg|th|tj|tk|' +
'tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|za|zm|zw|ελ|' +
'бел|мкд|мон|рф|срб|укр|қаз|հայ|الاردن|الجزائر|السعودية|المغرب|امارات|ایران|بھارت|تونس|سودان|' +
'سورية|عراق|عمان|فلسطين|قطر|مصر|مليسيا|پاکستان|भारत|বাংলা|ভারত|ਭਾਰਤ|ભારત|இந்தியா|இலங்கை|' +
'சிங்கப்பூர்|భారత్|ලංකා|ไทย|გე|中国|中國|台湾|台灣|新加坡|澳門|香港|한국' +
')(?=[^0-9a-zA-Z@]|$))'));
twttr.txt.regexen.validPunycode = regexSupplant(/(?:xn--[0-9a-z]+)/);
twttr.txt.regexen.validSpecialCCTLD = regexSupplant(RegExp(
'(?:(?:co|tv)(?=[^0-9a-zA-Z@]|$))'));
twttr.txt.regexen.validDomain = regexSupplant(/(?:#{validSubdomain}*#{validDomainName}(?:#{validGTLD}|#{validCCTLD}|#{validPunycode}))/);
twttr.txt.regexen.validAsciiDomain = regexSupplant(/(?:(?:[\-a-z0-9#{latinAccentChars}]+)\.)+(?:#{validGTLD}|#{validCCTLD}|#{validPunycode})/gi);
twttr.txt.regexen.invalidShortDomain = regexSupplant(/^#{validDomainName}#{validCCTLD}$/i);
twttr.txt.regexen.validSpecialShortDomain = regexSupplant(/^#{validDomainName}#{validSpecialCCTLD}$/i);
twttr.txt.regexen.validPortNumber = regexSupplant(/[0-9]+/);
twttr.txt.regexen.cyrillicLettersAndMarks = regexSupplant("\u0400-\u04FF");
twttr.txt.regexen.validGeneralUrlPathChars = regexSupplant(/[a-z#{cyrillicLettersAndMarks}0-9!\*';:=\+,\.\$\/%#\[\]\-_~@\|&#{latinAccentChars}]/i);
// Allow URL paths to contain up to two nested levels of balanced parens
// 1. Used in Wikipedia URLs like /Primer_(film)
// 2. Used in IIS sessions like /S(dfd346)/
// 3. Used in Rdio URLs like /track/We_Up_(Album_Version_(Edited))/
twttr.txt.regexen.validUrlBalancedParens = regexSupplant(
'\\(' +
'(?:' +
'#{validGeneralUrlPathChars}+' +
'|' +
// allow one nested level of balanced parentheses
'(?:' +
'#{validGeneralUrlPathChars}*' +
'\\(' +
'#{validGeneralUrlPathChars}+' +
'\\)' +
'#{validGeneralUrlPathChars}*' +
')' +
')' +
'\\)'
, 'i');
// Valid end-of-path chracters (so /foo. does not gobble the period).
// 1. Allow =&# for empty URL parameters and other URL-join artifacts
twttr.txt.regexen.validUrlPathEndingChars = regexSupplant(/[\+\-a-z#{cyrillicLettersAndMarks}0-9=_#\/#{latinAccentChars}]|(?:#{validUrlBalancedParens})/i);
// Allow @ in a url, but only in the middle. Catch things like http://example.com/@user/
twttr.txt.regexen.validUrlPath = regexSupplant('(?:' +
'(?:' +
'#{validGeneralUrlPathChars}*' +
'(?:#{validUrlBalancedParens}#{validGeneralUrlPathChars}*)*' +
'#{validUrlPathEndingChars}'+
')|(?:@#{validGeneralUrlPathChars}+\/)'+
')', 'i');
twttr.txt.regexen.validUrlQueryChars = /[a-z0-9!?\*'@\(\);:&=\+\$\/%#\[\]\-_\.,~|]/i;
twttr.txt.regexen.validUrlQueryEndingChars = /[a-z0-9_&=#\/]/i;
twttr.txt.regexen.extractUrl = regexSupplant(
'(' + // $1 total match
'(#{validUrlPrecedingChars})' + // $2 Preceeding chracter
'(' + // $3 URL
'(https?:\\/\\/)?' + // $4 Protocol (optional)
'(#{validDomain})' + // $5 Domain(s)
'(?::(#{validPortNumber}))?' + // $6 Port number (optional)
'(\\/#{validUrlPath}*)?' + // $7 URL Path
'(\\?#{validUrlQueryChars}*#{validUrlQueryEndingChars})?' + // $8 Query String
')' +
')'
, 'gi');
twttr.txt.regexen.validTcoUrl = /^https?:\/\/t\.co\/[a-z0-9]+/i;
twttr.txt.regexen.urlHasProtocol = /^https?:\/\//i;
twttr.txt.regexen.urlHasHttps = /^https:\/\//i;
// cashtag related regex
twttr.txt.regexen.cashtag = /[a-z]{1,6}(?:[._][a-z]{1,2})?/i;
twttr.txt.regexen.validCashtag = regexSupplant('(^|#{spaces})(\\$)(#{cashtag})(?=$|\\s|[#{punct}])', 'gi');
// These URL validation pattern strings are based on the ABNF from RFC 3986
twttr.txt.regexen.validateUrlUnreserved = /[a-z\u0400-\u04FF0-9\-._~]/i;
twttr.txt.regexen.validateUrlPctEncoded = /(?:%[0-9a-f]{2})/i;
twttr.txt.regexen.validateUrlSubDelims = /[!$&'()*+,;=]/i;
twttr.txt.regexen.validateUrlPchar = regexSupplant('(?:' +
'#{validateUrlUnreserved}|' +
'#{validateUrlPctEncoded}|' +
'#{validateUrlSubDelims}|' +
'[:|@]' +
')', 'i');
twttr.txt.regexen.validateUrlScheme = /(?:[a-z][a-z0-9+\-.]*)/i;
twttr.txt.regexen.validateUrlUserinfo = regexSupplant('(?:' +
'#{validateUrlUnreserved}|' +
'#{validateUrlPctEncoded}|' +
'#{validateUrlSubDelims}|' +
':' +
')*', 'i');
twttr.txt.regexen.validateUrlDecOctet = /(?:[0-9]|(?:[1-9][0-9])|(?:1[0-9]{2})|(?:2[0-4][0-9])|(?:25[0-5]))/i;
twttr.txt.regexen.validateUrlIpv4 = regexSupplant(/(?:#{validateUrlDecOctet}(?:\.#{validateUrlDecOctet}){3})/i);
// Punting on real IPv6 validation for now
twttr.txt.regexen.validateUrlIpv6 = /(?:\[[a-f0-9:\.]+\])/i;
// Also punting on IPvFuture for now
twttr.txt.regexen.validateUrlIp = regexSupplant('(?:' +
'#{validateUrlIpv4}|' +
'#{validateUrlIpv6}' +
')', 'i');
// This is more strict than the rfc specifies
twttr.txt.regexen.validateUrlSubDomainSegment = /(?:[a-z0-9](?:[a-z0-9_\-]*[a-z0-9])?)/i;
twttr.txt.regexen.validateUrlDomainSegment = /(?:[a-z0-9](?:[a-z0-9\-]*[a-z0-9])?)/i;
twttr.txt.regexen.validateUrlDomainTld = /(?:[a-z](?:[a-z0-9\-]*[a-z0-9])?)/i;
twttr.txt.regexen.validateUrlDomain = regexSupplant(/(?:(?:#{validateUrlSubDomainSegment]}\.)*(?:#{validateUrlDomainSegment]}\.)#{validateUrlDomainTld})/i);
twttr.txt.regexen.validateUrlHost = regexSupplant('(?:' +
'#{validateUrlIp}|' +
'#{validateUrlDomain}' +
')', 'i');
// Unencoded internationalized domains - this doesn't check for invalid UTF-8 sequences
twttr.txt.regexen.validateUrlUnicodeSubDomainSegment = /(?:(?:[a-z0-9]|[^\u0000-\u007f])(?:(?:[a-z0-9_\-]|[^\u0000-\u007f])*(?:[a-z0-9]|[^\u0000-\u007f]))?)/i;
twttr.txt.regexen.validateUrlUnicodeDomainSegment = /(?:(?:[a-z0-9]|[^\u0000-\u007f])(?:(?:[a-z0-9\-]|[^\u0000-\u007f])*(?:[a-z0-9]|[^\u0000-\u007f]))?)/i;
twttr.txt.regexen.validateUrlUnicodeDomainTld = /(?:(?:[a-z]|[^\u0000-\u007f])(?:(?:[a-z0-9\-]|[^\u0000-\u007f])*(?:[a-z0-9]|[^\u0000-\u007f]))?)/i;
twttr.txt.regexen.validateUrlUnicodeDomain = regexSupplant(/(?:(?:#{validateUrlUnicodeSubDomainSegment}\.)*(?:#{validateUrlUnicodeDomainSegment}\.)#{validateUrlUnicodeDomainTld})/i);
twttr.txt.regexen.validateUrlUnicodeHost = regexSupplant('(?:' +
'#{validateUrlIp}|' +
'#{validateUrlUnicodeDomain}' +
')', 'i');
twttr.txt.regexen.validateUrlPort = /[0-9]{1,5}/;
twttr.txt.regexen.validateUrlUnicodeAuthority = regexSupplant(
'(?:(#{validateUrlUserinfo})@)?' + // $1 userinfo
'(#{validateUrlUnicodeHost})' + // $2 host
'(?::(#{validateUrlPort}))?' //$3 port
, "i");
twttr.txt.regexen.validateUrlAuthority = regexSupplant(
'(?:(#{validateUrlUserinfo})@)?' + // $1 userinfo
'(#{validateUrlHost})' + // $2 host
'(?::(#{validateUrlPort}))?' // $3 port
, "i");
twttr.txt.regexen.validateUrlPath = regexSupplant(/(\/#{validateUrlPchar}*)*/i);
twttr.txt.regexen.validateUrlQuery = regexSupplant(/(#{validateUrlPchar}|\/|\?)*/i);
twttr.txt.regexen.validateUrlFragment = regexSupplant(/(#{validateUrlPchar}|\/|\?)*/i);
// Modified version of RFC 3986 Appendix B
twttr.txt.regexen.validateUrlUnencoded = regexSupplant(
'^' + // Full URL
'(?:' +
'([^:/?#]+):\\/\\/' + // $1 Scheme
')?' +
'([^/?#]*)' + // $2 Authority
'([^?#]*)' + // $3 Path
'(?:' +
'\\?([^#]*)' + // $4 Query
')?' +
'(?:' +
'#(.*)' + // $5 Fragment
')?$'
, "i");
// Default CSS class for auto-linked lists (along with the url class)
var DEFAULT_LIST_CLASS = "tweet-url list-slug";
// Default CSS class for auto-linked usernames (along with the url class)
var DEFAULT_USERNAME_CLASS = "tweet-url username";
// Default CSS class for auto-linked hashtags (along with the url class)
var DEFAULT_HASHTAG_CLASS = "tweet-url hashtag";
// Default CSS class for auto-linked cashtags (along with the url class)
var DEFAULT_CASHTAG_CLASS = "tweet-url cashtag";
// Options which should not be passed as HTML attributes
var OPTIONS_NOT_ATTRIBUTES = {'urlClass':true, 'listClass':true, 'usernameClass':true, 'hashtagClass':true, 'cashtagClass':true,
'usernameUrlBase':true, 'listUrlBase':true, 'hashtagUrlBase':true, 'cashtagUrlBase':true,
'usernameUrlBlock':true, 'listUrlBlock':true, 'hashtagUrlBlock':true, 'linkUrlBlock':true,
'usernameIncludeSymbol':true, 'suppressLists':true, 'suppressNoFollow':true, 'targetBlank':true,
'suppressDataScreenName':true, 'urlEntities':true, 'symbolTag':true, 'textWithSymbolTag':true, 'urlTarget':true,
'invisibleTagAttrs':true, 'linkAttributeBlock':true, 'linkTextBlock': true, 'htmlEscapeNonEntities': true
};
var BOOLEAN_ATTRIBUTES = {'disabled':true, 'readonly':true, 'multiple':true, 'checked':true};
// Simple object cloning function for simple objects
function clone(o) {
var r = {};
for (var k in o) {
if (o.hasOwnProperty(k)) {
r[k] = o[k];
}
}
return r;
}
twttr.txt.tagAttrs = function(attributes) {
var htmlAttrs = "";
for (var k in attributes) {
var v = attributes[k];
if (BOOLEAN_ATTRIBUTES[k]) {
v = v ? k : null;
}
if (v == null) continue;
htmlAttrs += " " + twttr.txt.htmlEscape(k) + "=\"" + twttr.txt.htmlEscape(v.toString()) + "\"";
}
return htmlAttrs;
};
twttr.txt.linkToText = function(entity, text, attributes, options) {
if (!options.suppressNoFollow) {
attributes.rel = "nofollow";
}
// if linkAttributeBlock is specified, call it to modify the attributes
if (options.linkAttributeBlock) {
options.linkAttributeBlock(entity, attributes);
}
// if linkTextBlock is specified, call it to get a new/modified link text
if (options.linkTextBlock) {
text = options.linkTextBlock(entity, text);
}
var d = {
text: text,
attr: twttr.txt.tagAttrs(attributes)
};
return stringSupplant("<a#{attr}>#{text}</a>", d);
};
twttr.txt.linkToTextWithSymbol = function(entity, symbol, text, attributes, options) {
var taggedSymbol = options.symbolTag ? "<" + options.symbolTag + ">" + symbol + "</"+ options.symbolTag + ">" : symbol;
text = twttr.txt.htmlEscape(text);
var taggedText = options.textWithSymbolTag ? "<" + options.textWithSymbolTag + ">" + text + "</"+ options.textWithSymbolTag + ">" : text;
if (options.usernameIncludeSymbol || !symbol.match(twttr.txt.regexen.atSigns)) {
return twttr.txt.linkToText(entity, taggedSymbol + taggedText, attributes, options);
} else {
return taggedSymbol + twttr.txt.linkToText(entity, taggedText, attributes, options);
}
};
twttr.txt.linkToHashtag = function(entity, text, options) {
var hash = text.substring(entity.indices[0], entity.indices[0] + 1);
var hashtag = twttr.txt.htmlEscape(entity.hashtag);
var attrs = clone(options.htmlAttrs || {});
attrs.href = options.hashtagUrlBase + hashtag;
attrs.title = "#" + hashtag;
attrs["class"] = options.hashtagClass;
if (hashtag.charAt(0).match(twttr.txt.regexen.rtl_chars)){
attrs["class"] += " rtl";
}
if (options.targetBlank) {
attrs.target = '_blank';
}
return twttr.txt.linkToTextWithSymbol(entity, hash, hashtag, attrs, options);
};
twttr.txt.linkToCashtag = function(entity, text, options) {
var cashtag = twttr.txt.htmlEscape(entity.cashtag);
var attrs = clone(options.htmlAttrs || {});
attrs.href = options.cashtagUrlBase + cashtag;
attrs.title = "$" + cashtag;
attrs["class"] = options.cashtagClass;
if (options.targetBlank) {
attrs.target = '_blank';
}
return twttr.txt.linkToTextWithSymbol(entity, "$", cashtag, attrs, options);
};
twttr.txt.linkToMentionAndList = function(entity, text, options) {
var at = text.substring(entity.indices[0], entity.indices[0] + 1);
var user = twttr.txt.htmlEscape(entity.screenName);
var slashListname = twttr.txt.htmlEscape(entity.listSlug);
var isList = entity.listSlug && !options.suppressLists;
var attrs = clone(options.htmlAttrs || {});
attrs["class"] = (isList ? options.listClass : options.usernameClass);
attrs.href = isList ? options.listUrlBase + user + slashListname : options.usernameUrlBase + user;
if (!isList && !options.suppressDataScreenName) {
attrs['data-screen-name'] = user;
}
if (options.targetBlank) {
attrs.target = '_blank';
}
return twttr.txt.linkToTextWithSymbol(entity, at, isList ? user + slashListname : user, attrs, options);
};
twttr.txt.linkToUrl = function(entity, text, options) {
var url = entity.url;
var displayUrl = url;
var linkText = twttr.txt.htmlEscape(displayUrl);
// If the caller passed a urlEntities object (provided by a Twitter API
// response with include_entities=true), we use that to render the display_url
// for each URL instead of it's underlying t.co URL.
var urlEntity = (options.urlEntities && options.urlEntities[url]) || entity;
if (urlEntity.display_url) {
linkText = twttr.txt.linkTextWithEntity(urlEntity, options);
}
var attrs = clone(options.htmlAttrs || {});
if (!url.match(twttr.txt.regexen.urlHasProtocol)) {
url = "http://" + url;
}
attrs.href = url;
if (options.targetBlank) {
attrs.target = '_blank';
}
// set class only if urlClass is specified.
if (options.urlClass) {
attrs["class"] = options.urlClass;
}
// set target only if urlTarget is specified.
if (options.urlTarget) {
attrs.target = options.urlTarget;
}
if (!options.title && urlEntity.display_url) {
attrs.title = urlEntity.expanded_url;
}
return twttr.txt.linkToText(entity, linkText, attrs, options);
};
twttr.txt.linkTextWithEntity = function (entity, options) {
var displayUrl = entity.display_url;
var expandedUrl = entity.expanded_url;
// Goal: If a user copies and pastes a tweet containing t.co'ed link, the resulting paste
// should contain the full original URL (expanded_url), not the display URL.
//
// Method: Whenever possible, we actually emit HTML that contains expanded_url, and use
// font-size:0 to hide those parts that should not be displayed (because they are not part of display_url).
// Elements with font-size:0 get copied even though they are not visible.
// Note that display:none doesn't work here. Elements with display:none don't get copied.
//
// Additionally, we want to *display* ellipses, but we don't want them copied. To make this happen we
// wrap the ellipses in a tco-ellipsis class and provide an onCopy handler that sets display:none on
// everything with the tco-ellipsis class.
//
// Exception: pic.twitter.com images, for which expandedUrl = "https://twitter.com/#!/username/status/1234/photo/1
// For those URLs, display_url is not a substring of expanded_url, so we don't do anything special to render the elided parts.
// For a pic.twitter.com URL, the only elided part will be the "https://", so this is fine.
var displayUrlSansEllipses = displayUrl.replace(/…/g, ""); // We have to disregard ellipses for matching
// Note: we currently only support eliding parts of the URL at the beginning or the end.
// Eventually we may want to elide parts of the URL in the *middle*. If so, this code will
// become more complicated. We will probably want to create a regexp out of display URL,
// replacing every ellipsis with a ".*".
if (expandedUrl.indexOf(displayUrlSansEllipses) != -1) {
var displayUrlIndex = expandedUrl.indexOf(displayUrlSansEllipses);
var v = {
displayUrlSansEllipses: displayUrlSansEllipses,
// Portion of expandedUrl that precedes the displayUrl substring
beforeDisplayUrl: expandedUrl.substr(0, displayUrlIndex),
// Portion of expandedUrl that comes after displayUrl
afterDisplayUrl: expandedUrl.substr(displayUrlIndex + displayUrlSansEllipses.length),
precedingEllipsis: displayUrl.match(/^…/) ? "…" : "",
followingEllipsis: displayUrl.match(/…$/) ? "…" : ""
};
for (var k in v) {
if (v.hasOwnProperty(k)) {
v[k] = twttr.txt.htmlEscape(v[k]);
}
}
// As an example: The user tweets "hi http://longdomainname.com/foo"
// This gets shortened to "hi http://t.co/xyzabc", with display_url = "…nname.com/foo"
// This will get rendered as:
// <span class='tco-ellipsis'> <!-- This stuff should get displayed but not copied -->
// …
// <!-- There's a chance the onCopy event handler might not fire. In case that happens,
// we include an here so that the … doesn't bump up against the URL and ruin it.
// The is inside the tco-ellipsis span so that when the onCopy handler *does*
// fire, it doesn't get copied. Otherwise the copied text would have two spaces in a row,
// e.g. "hi http://longdomainname.com/foo".
// <span style='font-size:0'> </span>
// </span>
// <span style='font-size:0'> <!-- This stuff should get copied but not displayed -->
// http://longdomai
// </span>
// <span class='js-display-url'> <!-- This stuff should get displayed *and* copied -->
// nname.com/foo
// </span>
// <span class='tco-ellipsis'> <!-- This stuff should get displayed but not copied -->
// <span style='font-size:0'> </span>
// …
// </span>
v['invisible'] = options.invisibleTagAttrs;
return stringSupplant("<span class='tco-ellipsis'>#{precedingEllipsis}<span #{invisible}> </span></span><span #{invisible}>#{beforeDisplayUrl}</span><span class='js-display-url'>#{displayUrlSansEllipses}</span><span #{invisible}>#{afterDisplayUrl}</span><span class='tco-ellipsis'><span #{invisible}> </span>#{followingEllipsis}</span>", v);
}
return displayUrl;
};
twttr.txt.autoLinkEntities = function(text, entities, options) {
options = clone(options || {});
options.hashtagClass = options.hashtagClass || DEFAULT_HASHTAG_CLASS;
options.hashtagUrlBase = options.hashtagUrlBase || "https://twitter.com/#!/search?q=%23";
options.cashtagClass = options.cashtagClass || DEFAULT_CASHTAG_CLASS;
options.cashtagUrlBase = options.cashtagUrlBase || "https://twitter.com/#!/search?q=%24";
options.listClass = options.listClass || DEFAULT_LIST_CLASS;
options.usernameClass = options.usernameClass || DEFAULT_USERNAME_CLASS;
options.usernameUrlBase = options.usernameUrlBase || "https://twitter.com/";
options.listUrlBase = options.listUrlBase || "https://twitter.com/";
options.htmlAttrs = twttr.txt.extractHtmlAttrsFromOptions(options);
options.invisibleTagAttrs = options.invisibleTagAttrs || "style='position:absolute;left:-9999px;'";
// remap url entities to hash
var urlEntities, i, len;
if(options.urlEntities) {
urlEntities = {};
for(i = 0, len = options.urlEntities.length; i < len; i++) {
urlEntities[options.urlEntities[i].url] = options.urlEntities[i];
}
options.urlEntities = urlEntities;
}
var result = "";
var beginIndex = 0;
// sort entities by start index
entities.sort(function(a,b){ return a.indices[0] - b.indices[0]; });
var nonEntity = options.htmlEscapeNonEntities ? twttr.txt.htmlEscape : function(text) {
return text;
};
for (var i = 0; i < entities.length; i++) {
var entity = entities[i];
result += nonEntity(text.substring(beginIndex, entity.indices[0]));
if (entity.url) {
result += twttr.txt.linkToUrl(entity, text, options);
} else if (entity.hashtag) {
result += twttr.txt.linkToHashtag(entity, text, options);
} else if (entity.screenName) {
result += twttr.txt.linkToMentionAndList(entity, text, options);
} else if (entity.cashtag) {
result += twttr.txt.linkToCashtag(entity, text, options);
}
beginIndex = entity.indices[1];
}
result += nonEntity(text.substring(beginIndex, text.length));
return result;
};
twttr.txt.autoLinkWithJSON = function(text, json, options) {
// map JSON entity to twitter-text entity
if (json.user_mentions) {
for (var i = 0; i < json.user_mentions.length; i++) {
// this is a @mention
json.user_mentions[i].screenName = json.user_mentions[i].screen_name;
}
}
if (json.hashtags) {
for (var i = 0; i < json.hashtags.length; i++) {
// this is a #hashtag
json.hashtags[i].hashtag = json.hashtags[i].text;
}
}
if (json.symbols) {
for (var i = 0; i < json.symbols.length; i++) {
// this is a $CASH tag
json.symbols[i].cashtag = json.symbols[i].text;
}
}
// concatenate all entities
var entities = [];
for (var key in json) {
entities = entities.concat(json[key]);
}
// modify indices to UTF-16
twttr.txt.modifyIndicesFromUnicodeToUTF16(text, entities);
return twttr.txt.autoLinkEntities(text, entities, options);
};
twttr.txt.extractHtmlAttrsFromOptions = function(options) {
var htmlAttrs = {};
for (var k in options) {
var v = options[k];
if (OPTIONS_NOT_ATTRIBUTES[k]) continue;
if (BOOLEAN_ATTRIBUTES[k]) {
v = v ? k : null;
}
if (v == null) continue;
htmlAttrs[k] = v;
}
return htmlAttrs;
};
twttr.txt.autoLink = function(text, options) {
var entities = twttr.txt.extractEntitiesWithIndices(text, {extractUrlsWithoutProtocol: false});
return twttr.txt.autoLinkEntities(text, entities, options);
};
twttr.txt.autoLinkUsernamesOrLists = function(text, options) {
var entities = twttr.txt.extractMentionsOrListsWithIndices(text);
return twttr.txt.autoLinkEntities(text, entities, options);
};
twttr.txt.autoLinkHashtags = function(text, options) {
var entities = twttr.txt.extractHashtagsWithIndices(text);
return twttr.txt.autoLinkEntities(text, entities, options);
};
twttr.txt.autoLinkCashtags = function(text, options) {
var entities = twttr.txt.extractCashtagsWithIndices(text);
return twttr.txt.autoLinkEntities(text, entities, options);
};
twttr.txt.autoLinkUrlsCustom = function(text, options) {
var entities = twttr.txt.extractUrlsWithIndices(text, {extractUrlsWithoutProtocol: false});
return twttr.txt.autoLinkEntities(text, entities, options);
};
twttr.txt.removeOverlappingEntities = function(entities) {
entities.sort(function(a,b){ return a.indices[0] - b.indices[0]; });
var prev = entities[0];
for (var i = 1; i < entities.length; i++) {
if (prev.indices[1] > entities[i].indices[0]) {
entities.splice(i, 1);
i--;
} else {
prev = entities[i];
}
}
};
twttr.txt.extractEntitiesWithIndices = function(text, options) {
var entities = twttr.txt.extractUrlsWithIndices(text, options)
.concat(twttr.txt.extractMentionsOrListsWithIndices(text))
.concat(twttr.txt.extractHashtagsWithIndices(text, {checkUrlOverlap: false}))
.concat(twttr.txt.extractCashtagsWithIndices(text));
if (entities.length == 0) {
return [];
}
twttr.txt.removeOverlappingEntities(entities);
return entities;
};
twttr.txt.extractMentions = function(text) {
var screenNamesOnly = [],
screenNamesWithIndices = twttr.txt.extractMentionsWithIndices(text);
for (var i = 0; i < screenNamesWithIndices.length; i++) {
var screenName = screenNamesWithIndices[i].screenName;
screenNamesOnly.push(screenName);
}
return screenNamesOnly;
};
twttr.txt.extractMentionsWithIndices = function(text) {
var mentions = [],
mentionOrList,
mentionsOrLists = twttr.txt.extractMentionsOrListsWithIndices(text);
for (var i = 0 ; i < mentionsOrLists.length; i++) {
mentionOrList = mentionsOrLists[i];
if (mentionOrList.listSlug == '') {
mentions.push({
screenName: mentionOrList.screenName,
indices: mentionOrList.indices
});
}
}
return mentions;
};
/**
* Extract list or user mentions.
* (Presence of listSlug indicates a list)
*/
twttr.txt.extractMentionsOrListsWithIndices = function(text) {
if (!text || !text.match(twttr.txt.regexen.atSigns)) {
return [];
}
var possibleNames = [],
slashListname;
text.replace(twttr.txt.regexen.validMentionOrList, function(match, before, atSign, screenName, slashListname, offset, chunk) {
var after = chunk.slice(offset + match.length);
if (!after.match(twttr.txt.regexen.endMentionMatch)) {
slashListname = slashListname || '';
var startPosition = offset + before.length;
var endPosition = startPosition + screenName.length + slashListname.length + 1;
possibleNames.push({
screenName: screenName,
listSlug: slashListname,
indices: [startPosition, endPosition]
});
}
});
return possibleNames;
};
twttr.txt.extractReplies = function(text) {
if (!text) {
return null;
}
var possibleScreenName = text.match(twttr.txt.regexen.validReply);
if (!possibleScreenName ||
RegExp.rightContext.match(twttr.txt.regexen.endMentionMatch)) {
return null;
}
return possibleScreenName[1];
};
twttr.txt.extractUrls = function(text, options) {
var urlsOnly = [],
urlsWithIndices = twttr.txt.extractUrlsWithIndices(text, options);
for (var i = 0; i < urlsWithIndices.length; i++) {
urlsOnly.push(urlsWithIndices[i].url);
}
return urlsOnly;
};
twttr.txt.extractUrlsWithIndices = function(text, options) {
if (!options) {
options = {extractUrlsWithoutProtocol: true};
}
if (!text || (options.extractUrlsWithoutProtocol ? !text.match(/\./) : !text.match(/:/))) {
return [];
}
var urls = [];
while (twttr.txt.regexen.extractUrl.exec(text)) {
var before = RegExp.$2, url = RegExp.$3, protocol = RegExp.$4, domain = RegExp.$5, path = RegExp.$7;
var endPosition = twttr.txt.regexen.extractUrl.lastIndex,
startPosition = endPosition - url.length;
// if protocol is missing and domain contains non-ASCII characters,
// extract ASCII-only domains.
if (!protocol) {
if (!options.extractUrlsWithoutProtocol
|| before.match(twttr.txt.regexen.invalidUrlWithoutProtocolPrecedingChars)) {
continue;
}
var lastUrl = null,
asciiEndPosition = 0;
domain.replace(twttr.txt.regexen.validAsciiDomain, function(asciiDomain) {
var asciiStartPosition = domain.indexOf(asciiDomain, asciiEndPosition);
asciiEndPosition = asciiStartPosition + asciiDomain.length;
lastUrl = {
url: asciiDomain,
indices: [startPosition + asciiStartPosition, startPosition + asciiEndPosition]
};
if (path
|| asciiDomain.match(twttr.txt.regexen.validSpecialShortDomain)
|| !asciiDomain.match(twttr.txt.regexen.invalidShortDomain)) {
urls.push(lastUrl);
}
});
// no ASCII-only domain found. Skip the entire URL.
if (lastUrl == null) {
continue;
}
// lastUrl only contains domain. Need to add path and query if they exist.
if (path) {
lastUrl.url = url.replace(domain, lastUrl.url);
lastUrl.indices[1] = endPosition;
}
} else {
// In the case of t.co URLs, don't allow additional path characters.
if (url.match(twttr.txt.regexen.validTcoUrl)) {
url = RegExp.lastMatch;
endPosition = startPosition + url.length;
}
urls.push({
url: url,
indices: [startPosition, endPosition]
});
}
}
return urls;
};
twttr.txt.extractHashtags = function(text) {
var hashtagsOnly = [],
hashtagsWithIndices = twttr.txt.extractHashtagsWithIndices(text);
for (var i = 0; i < hashtagsWithIndices.length; i++) {
hashtagsOnly.push(hashtagsWithIndices[i].hashtag);
}
return hashtagsOnly;
};
twttr.txt.extractHashtagsWithIndices = function(text, options) {
if (!options) {
options = {checkUrlOverlap: true};
}
if (!text || !text.match(twttr.txt.regexen.hashSigns)) {
return [];
}
var tags = [];
text.replace(twttr.txt.regexen.validHashtag, function(match, before, hash, hashText, offset, chunk) {
var after = chunk.slice(offset + match.length);
if (after.match(twttr.txt.regexen.endHashtagMatch))
return;
var startPosition = offset + before.length;
var endPosition = startPosition + hashText.length + 1;
tags.push({
hashtag: hashText,
indices: [startPosition, endPosition]
});
});
if (options.checkUrlOverlap) {
// also extract URL entities
var urls = twttr.txt.extractUrlsWithIndices(text);
if (urls.length > 0) {
var entities = tags.concat(urls);
// remove overlap
twttr.txt.removeOverlappingEntities(entities);
// only push back hashtags
tags = [];
for (var i = 0; i < entities.length; i++) {
if (entities[i].hashtag) {
tags.push(entities[i]);
}
}
}
}
return tags;
};
twttr.txt.extractCashtags = function(text) {
var cashtagsOnly = [],
cashtagsWithIndices = twttr.txt.extractCashtagsWithIndices(text);
for (var i = 0; i < cashtagsWithIndices.length; i++) {
cashtagsOnly.push(cashtagsWithIndices[i].cashtag);
}
return cashtagsOnly;
};
twttr.txt.extractCashtagsWithIndices = function(text) {
if (!text || text.indexOf("$") == -1) {
return [];
}
var tags = [];
text.replace(twttr.txt.regexen.validCashtag, function(match, before, dollar, cashtag, offset, chunk) {
var startPosition = offset + before.length;
var endPosition = startPosition + cashtag.length + 1;
tags.push({
cashtag: cashtag,
indices: [startPosition, endPosition]
});
});
return tags;
};
twttr.txt.modifyIndicesFromUnicodeToUTF16 = function(text, entities) {
twttr.txt.convertUnicodeIndices(text, entities, false);
};
twttr.txt.modifyIndicesFromUTF16ToUnicode = function(text, entities) {
twttr.txt.convertUnicodeIndices(text, entities, true);
};
twttr.txt.getUnicodeTextLength = function(text) {
return text.replace(twttr.txt.regexen.non_bmp_code_pairs, ' ').length;
};
twttr.txt.convertUnicodeIndices = function(text, entities, indicesInUTF16) {
if (entities.length == 0) {
return;
}
var charIndex = 0;
var codePointIndex = 0;
// sort entities by start index
entities.sort(function(a,b){ return a.indices[0] - b.indices[0]; });
var entityIndex = 0;
var entity = entities[0];
while (charIndex < text.length) {
if (entity.indices[0] == (indicesInUTF16 ? charIndex : codePointIndex)) {
var len = entity.indices[1] - entity.indices[0];
entity.indices[0] = indicesInUTF16 ? codePointIndex : charIndex;
entity.indices[1] = entity.indices[0] + len;
entityIndex++;
if (entityIndex == entities.length) {
// no more entity
break;
}
entity = entities[entityIndex];
}
var c = text.charCodeAt(charIndex);
if (0xD800 <= c && c <= 0xDBFF && charIndex < text.length - 1) {
// Found high surrogate char
c = text.charCodeAt(charIndex + 1);
if (0xDC00 <= c && c <= 0xDFFF) {
// Found surrogate pair
charIndex++;
}
}
codePointIndex++;
charIndex++;
}
};
// this essentially does text.split(/<|>/)
// except that won't work in IE, where empty strings are ommitted
// so "<>".split(/<|>/) => [] in IE, but is ["", "", ""] in all others
// but "<<".split("<") => ["", "", ""]
twttr.txt.splitTags = function(text) {
var firstSplits = text.split("<"),
secondSplits,
allSplits = [],
split;
for (var i = 0; i < firstSplits.length; i += 1) {
split = firstSplits[i];
if (!split) {
allSplits.push("");
} else {
secondSplits = split.split(">");
for (var j = 0; j < secondSplits.length; j += 1) {
allSplits.push(secondSplits[j]);
}
}
}
return allSplits;
};
twttr.txt.hitHighlight = function(text, hits, options) {
var defaultHighlightTag = "em";
hits = hits || [];
options = options || {};
if (hits.length === 0) {
return text;
}
var tagName = options.tag || defaultHighlightTag,
tags = ["<" + tagName + ">", "</" + tagName + ">"],
chunks = twttr.txt.splitTags(text),
i,
j,
result = "",
chunkIndex = 0,
chunk = chunks[0],
prevChunksLen = 0,
chunkCursor = 0,
startInChunk = false,
chunkChars = chunk,
flatHits = [],
index,
hit,
tag,
placed,
hitSpot;
for (i = 0; i < hits.length; i += 1) {
for (j = 0; j < hits[i].length; j += 1) {
flatHits.push(hits[i][j]);
}
}
for (index = 0; index < flatHits.length; index += 1) {
hit = flatHits[index];
tag = tags[index % 2];
placed = false;
while (chunk != null && hit >= prevChunksLen + chunk.length) {
result += chunkChars.slice(chunkCursor);
if (startInChunk && hit === prevChunksLen + chunkChars.length) {
result += tag;
placed = true;
}
if (chunks[chunkIndex + 1]) {
result += "<" + chunks[chunkIndex + 1] + ">";
}
prevChunksLen += chunkChars.length;
chunkCursor = 0;
chunkIndex += 2;
chunk = chunks[chunkIndex];
chunkChars = chunk;
startInChunk = false;
}
if (!placed && chunk != null) {
hitSpot = hit - prevChunksLen;
result += chunkChars.slice(chunkCursor, hitSpot) + tag;
chunkCursor = hitSpot;
if (index % 2 === 0) {
startInChunk = true;
} else {
startInChunk = false;
}
} else if(!placed) {
placed = true;
result += tag;
}
}
if (chunk != null) {
if (chunkCursor < chunkChars.length) {
result += chunkChars.slice(chunkCursor);
}
for (index = chunkIndex + 1; index < chunks.length; index += 1) {
result += (index % 2 === 0 ? chunks[index] : "<" + chunks[index] + ">");
}
}
return result;
};
var MAX_LENGTH = 140;
// Characters not allowed in Tweets
var INVALID_CHARACTERS = [
// BOM
fromCode(0xFFFE),
fromCode(0xFEFF),
// Special
fromCode(0xFFFF),
// Directional Change
fromCode(0x202A),
fromCode(0x202B),
fromCode(0x202C),
fromCode(0x202D),
fromCode(0x202E)
];
// Returns the length of Tweet text with consideration to t.co URL replacement
// and chars outside the basic multilingual plane that use 2 UTF16 code points
twttr.txt.getTweetLength = function(text, options) {
if (!options) {
options = {
// These come from https://api.twitter.com/1/help/configuration.json
// described by https://dev.twitter.com/docs/api/1/get/help/configuration
short_url_length: 23,
short_url_length_https: 23
};
}
var textLength = twttr.txt.getUnicodeTextLength(text),
urlsWithIndices = twttr.txt.extractUrlsWithIndices(text);
twttr.txt.modifyIndicesFromUTF16ToUnicode(text, urlsWithIndices);
for (var i = 0; i < urlsWithIndices.length; i++) {
// Subtract the length of the original URL
textLength += urlsWithIndices[i].indices[0] - urlsWithIndices[i].indices[1];
// Add 23 characters for URL starting with https://
// http:// URLs still use https://t.co so they are 23 characters as well
if (urlsWithIndices[i].url.toLowerCase().match(twttr.txt.regexen.urlHasHttps)) {
textLength += options.short_url_length_https;
} else {
textLength += options.short_url_length;
}
}
return textLength;
};
// Check the text for any reason that it may not be valid as a Tweet. This is meant as a pre-validation
// before posting to api.twitter.com. There are several server-side reasons for Tweets to fail but this pre-validation
// will allow quicker feedback.
//
// Returns false if this text is valid. Otherwise one of the following strings will be returned:
//
// "too_long": if the text is too long
// "empty": if the text is nil or empty
// "invalid_characters": if the text contains non-Unicode or any of the disallowed Unicode characters
twttr.txt.isInvalidTweet = function(text) {
if (!text) {
return "empty";
}
// Determine max length independent of URL length
if (twttr.txt.getTweetLength(text) > MAX_LENGTH) {
return "too_long";
}
if (twttr.txt.hasInvalidCharacters(text)) {
return "invalid_characters";
}
return false;
};
twttr.txt.hasInvalidCharacters = function(text) {
for (var i = 0; i < INVALID_CHARACTERS.length; i++) {
if (text.indexOf(INVALID_CHARACTERS[i]) >= 0) {
return true;
}
}
return false;
};
twttr.txt.isValidTweetText = function(text) {
return !twttr.txt.isInvalidTweet(text);
};
twttr.txt.isValidUsername = function(username) {
if (!username) {
return false;
}
var extracted = twttr.txt.extractMentions(username);
// Should extract the username minus the @ sign, hence the .slice(1)
return extracted.length === 1 && extracted[0] === username.slice(1);
};
var VALID_LIST_RE = regexSupplant(/^#{validMentionOrList}$/);
twttr.txt.isValidList = function(usernameList) {
var match = usernameList.match(VALID_LIST_RE);
// Must have matched and had nothing before or after
return !!(match && match[1] == "" && match[4]);
};
twttr.txt.isValidHashtag = function(hashtag) {
if (!hashtag) {
return false;
}
var extracted = twttr.txt.extractHashtags(hashtag);
// Should extract the hashtag minus the # sign, hence the .slice(1)
return extracted.length === 1 && extracted[0] === hashtag.slice(1);
};
twttr.txt.isValidUrl = function(url, unicodeDomains, requireProtocol) {
if (unicodeDomains == null) {
unicodeDomains = true;
}
if (requireProtocol == null) {
requireProtocol = true;
}
if (!url) {
return false;
}
var urlParts = url.match(twttr.txt.regexen.validateUrlUnencoded);
if (!urlParts || urlParts[0] !== url) {
return false;
}
var scheme = urlParts[1],
authority = urlParts[2],
path = urlParts[3],
query = urlParts[4],
fragment = urlParts[5];
if (!(
(!requireProtocol || (isValidMatch(scheme, twttr.txt.regexen.validateUrlScheme) && scheme.match(/^https?$/i))) &&
isValidMatch(path, twttr.txt.regexen.validateUrlPath) &&
isValidMatch(query, twttr.txt.regexen.validateUrlQuery, true) &&
isValidMatch(fragment, twttr.txt.regexen.validateUrlFragment, true)
)) {
return false;
}
return (unicodeDomains && isValidMatch(authority, twttr.txt.regexen.validateUrlUnicodeAuthority)) ||
(!unicodeDomains && isValidMatch(authority, twttr.txt.regexen.validateUrlAuthority));
};
function isValidMatch(string, regex, optional) {
if (!optional) {
// RegExp["$&"] is the text of the last match
// blank strings are ok, but are falsy, so we check stringiness instead of truthiness
return ((typeof string === "string") && string.match(regex) && RegExp["$&"] === string);
}
// RegExp["$&"] is the text of the last match
return (!string || (string.match(regex) && RegExp["$&"] === string));
}
if (typeof module != 'undefined' && module.exports) {
module.exports = twttr.txt;
}
if (typeof define == 'function' && define.amd) {
define([], twttr.txt);
}
if (typeof window != 'undefined') {
if (window.twttr) {
for (var prop in twttr) {
window.twttr[prop] = twttr[prop];
}
} else {
window.twttr = twttr;
}
}
})();