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flowdock-text.js
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flowdock-text.js
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/*!
* flowdock-text 0.1.7
*
* Copyright 2011 Twitter, Inc.
* Copyright 2011 Flowdock Ltd
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this work except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*/
if (typeof window === "undefined" || window === null) {
window = { FlowdockText: {} };
}
if (window.FlowdockText == null) {
window.FlowdockText = {};
}
if (typeof FlowdockText === "undefined" || FlowdockText === null) {
FlowdockText = {};
}
(function() {
FlowdockText = {};
FlowdockText.regexen = {};
var HTML_ENTITIES = {
'&': '&',
'>': '>',
'<': '<',
'"': '"',
"'": '''
};
// HTML escaping
FlowdockText.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 = FlowdockText.regexen[name] || "";
if (typeof newRegex !== "string") {
newRegex = newRegex.source;
}
return newRegex;
}), flags);
}
// simple string interpolation
function stringSupplant(str, values) {
return str.replace(/#\{(\w+)\}/g, function(match, name) {
return values[name] || "";
});
}
function addCharsToCharClass(charClass, start, end) {
var s = String.fromCharCode(start);
if (end !== start) {
s += "-" + String.fromCharCode(end);
}
charClass.push(s);
return charClass;
}
// 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
FlowdockText.regexen.spaces_group = regexSupplant(UNICODE_SPACES.join(""));
FlowdockText.regexen.spaces = regexSupplant("[" + UNICODE_SPACES.join("") + "]");
FlowdockText.regexen.invalid_chars_group = regexSupplant(INVALID_CHARS.join(""));
FlowdockText.regexen.punct = /\!'#%&'\(\)*\+,\\\-\.\/:;<=>\?@\[\]\^_{|}~\$/;
FlowdockText.regexen.atSigns = /[@＠]/;
FlowdockText.regexen.extractMentions = regexSupplant(/(^|[^a-zA-Z0-9_!#$%&*@＠])(#{atSigns})([a-zA-Z0-9_]{1,20})/g);
var nonLatinHashtagChars = [];
// Cyrillic
addCharsToCharClass(nonLatinHashtagChars, 0x0400, 0x04ff); // Cyrillic
addCharsToCharClass(nonLatinHashtagChars, 0x0500, 0x0527); // Cyrillic Supplement
addCharsToCharClass(nonLatinHashtagChars, 0x2de0, 0x2dff); // Cyrillic Extended A
addCharsToCharClass(nonLatinHashtagChars, 0xa640, 0xa69f); // Cyrillic Extended B
// Greek
addCharsToCharClass(nonLatinHashtagChars, 0x0370, 0x03ff); // Greek
// -- Disabled as it breaks the Regex
//addCharsToCharClass(nonLatinHashtagChars, 0x1f00, 0x01ff); // Greek Extended
// Hangul (Korean)
addCharsToCharClass(nonLatinHashtagChars, 0x1100, 0x11ff); // Hangul Jamo
addCharsToCharClass(nonLatinHashtagChars, 0x3130, 0x3185); // Hangul Compatibility Jamo
addCharsToCharClass(nonLatinHashtagChars, 0xA960, 0xA97F); // Hangul Jamo Extended-A
addCharsToCharClass(nonLatinHashtagChars, 0xAC00, 0xD7AF); // Hangul Syllables
addCharsToCharClass(nonLatinHashtagChars, 0xD7B0, 0xD7FF); // Hangul Jamo Extended-B
addCharsToCharClass(nonLatinHashtagChars, 0xFFA1, 0xFFDC); // half-width Hangul
// Japanese and Chinese
addCharsToCharClass(nonLatinHashtagChars, 0x30A1, 0x30FA); // Katakana (full-width)
addCharsToCharClass(nonLatinHashtagChars, 0x30FC, 0x30FE); // Katakana Chouon and iteration marks (full-width)
addCharsToCharClass(nonLatinHashtagChars, 0xFF66, 0xFF9F); // Katakana (half-width)
addCharsToCharClass(nonLatinHashtagChars, 0xFF70, 0xFF70); // Katakana Chouon (half-width)
addCharsToCharClass(nonLatinHashtagChars, 0xFF10, 0xFF19); // \
addCharsToCharClass(nonLatinHashtagChars, 0xFF21, 0xFF3A); // - Latin (full-width)
addCharsToCharClass(nonLatinHashtagChars, 0xFF41, 0xFF5A); // /
addCharsToCharClass(nonLatinHashtagChars, 0x3041, 0x3096); // Hiragana
addCharsToCharClass(nonLatinHashtagChars, 0x3099, 0x309E); // Hiragana voicing and iteration mark
addCharsToCharClass(nonLatinHashtagChars, 0x3400, 0x4DBF); // Kanji (CJK Extension A)
addCharsToCharClass(nonLatinHashtagChars, 0x4E00, 0x9FFF); // Kanji (Unified)
// -- Disabled as it breaks the Regex - Ecmascript doesn't support non-BMP (Unicode Basic Multilingual Plane) characters
//addCharsToCharClass(nonLatinHashtagChars, 0x20000, 0x2A6DF); // Kanji (CJK Extension B)
//addCharsToCharClass(nonLatinHashtagChars, 0x2A700, 0x2B73F); // Kanji (CJK Extension C)
//addCharsToCharClass(nonLatinHashtagChars, 0x2B740, 0x2B81F); // Kanji (CJK Extension D)
//addCharsToCharClass(nonLatinHashtagChars, 0x2F800, 0x2FA1F); // Kanji (CJK supplement)
addCharsToCharClass(nonLatinHashtagChars, 0x3003, 0x3003); // Kanji iteration mark
addCharsToCharClass(nonLatinHashtagChars, 0x3005, 0x3005); // Kanji iteration mark
addCharsToCharClass(nonLatinHashtagChars, 0x303B, 0x303B); // Han iteration mark
FlowdockText.regexen.nonLatinHashtagChars = regexSupplant(nonLatinHashtagChars.join(""));
var latinAccentChars = [];
addCharsToCharClass(latinAccentChars, 0x00C0, 0x00FF); // Latin-1 Supplement
addCharsToCharClass(latinAccentChars, 0x0100, 0x017F); // Latin Extended A
addCharsToCharClass(latinAccentChars, 0x1E00, 0x1EFF); // Latin Extended Additional
// Latin accented characters (subtracted 0xD7 from the range, it's a confusable multiplication sign. Looks like "x")
FlowdockText.regexen.latinAccentChars = regexSupplant(latinAccentChars.join(""));
FlowdockText.regexen.endScreenNameMatch = regexSupplant(/^(?:#{atSigns}|[#{latinAccentChars}]|:\/\/)/);
// A hashtag must contain characters, numbers and underscores, but not all numbers.
FlowdockText.regexen.hashtagAlpha = regexSupplant(/[a-z_#{latinAccentChars}#{nonLatinHashtagChars}]/i);
FlowdockText.regexen.usernameAlphaNumeric = regexSupplant(/[a-z0-9_\-\.#{latinAccentChars}#{nonLatinHashtagChars}]/i);
FlowdockText.regexen.usernameAlphaNumericEnd = regexSupplant(/[a-z0-9_\-#{latinAccentChars}#{nonLatinHashtagChars}]/i);
FlowdockText.regexen.hashtagAlphaNumeric = regexSupplant(/[a-z0-9_\-#{latinAccentChars}#{nonLatinHashtagChars}]/i);
FlowdockText.regexen.endHashtagMatch = /^(?:[#＃]|:\/\/)/;
FlowdockText.regexen.hashtagBoundary = regexSupplant(/(?:^|$|[^&\/a-z0-9_@＠#{latinAccentChars}#{nonLatinHashtagChars}])/);
FlowdockText.regexen.singleValidHashTag = regexSupplant(/^#{hashtagAlphaNumeric}+$/i);
// FlowdockText change: allow all-numeric hashtags
FlowdockText.regexen.autoLinkHashtags = regexSupplant(/(#{hashtagBoundary})(#|＃)(#{hashtagAlphaNumeric}+)/gi);
FlowdockText.regexen.startHashTagMatch = regexSupplant(/(?:^|[^&\/a-z0-9_#{latinAccentChars}#{nonLatinHashtagChars}])$/);
FlowdockText.regexen.singleHashTag = regexSupplant(/(#|＃)(#{hashtagAlphaNumeric}+)/i);
FlowdockText.regexen.singleMention = regexSupplant(/(@)(#{usernameAlphaNumeric}*#{usernameAlphaNumericEnd}+)/i);
FlowdockText.regexen.autoLinkMentions = regexSupplant(/(#{hashtagBoundary})(@)(#{usernameAlphaNumeric}*#{usernameAlphaNumericEnd}+)/gi);
// We want to only match words starting with the nickname and ignore case
FlowdockText.regexen.highlightRegex = function(nick) {
if (nick && nick.length > 0) { return new RegExp('(\\b)' + regexEscape(nick) + '(\\b)', 'i'); }
};
// URL related hash regex collection
FlowdockText.regexen.validPrecedingChars = regexSupplant(/(?:[^-\/"'!=A-Za-z0-9_@＠$#＃\.#{invalid_chars_group}]|^)[\(\[]?/);
FlowdockText.regexen.invalidDomainChars = stringSupplant("#{punct}#{spaces_group}#{invalid_chars_group}", FlowdockText.regexen);
FlowdockText.regexen.validDomainChars = regexSupplant(/[^#{invalidDomainChars}]/);
FlowdockText.regexen.validSubdomain = regexSupplant(/(?:(?:#{validDomainChars}(?:[_-]|#{validDomainChars})*)?#{validDomainChars}\.)/);
FlowdockText.regexen.validDomainName = regexSupplant(/(?:(?:#{validDomainChars}(?:-|#{validDomainChars})*)?#{validDomainChars}\.)/);
FlowdockText.regexen.validGTLD = regexSupplant(RegExp(
'(?:(?:academy|actor|aero|agency|arpa|asia|bar|bargains|berlin|best|bid|bike|biz|blue|boutique|build|builders|' +
'buzz|cab|camera|camp|cards|careers|cat|catering|center|ceo|cheap|christmas|cleaning|clothing|club|codes|' +
'coffee|com|community|company|computer|construction|contractors|cool|coop|cruises|dance|dating|democrat|' +
'diamonds|directory|domains|edu|education|email|enterprises|equipment|estate|events|expert|exposed|farm|fish|' +
'flights|florist|foundation|futbol|gallery|gift|glass|gov|graphics|guitars|guru|holdings|holiday|house|' +
'immobilien|industries|info|institute|int|international|jobs|kaufen|kim|kitchen|kiwi|koeln|kred|land|lighting|' +
'limo|link|luxury|management|mango|marketing|menu|mil|mobi|moda|monash|museum|nagoya|name|net|neustar|ninja|' +
'okinawa|onl|org|partners|parts|photo|photography|photos|pics|pink|plumbing|post|pro|productions|properties|' +
'pub|qpon|recipes|red|rentals|repair|report|reviews|rich|ruhr|sexy|shiksha|shoes|singles|social|solar|' +
'solutions|supplies|supply|support|systems|tattoo|technology|tel|tienda|tips|today|tokyo|tools|training|' +
'travel|uno|vacations|ventures|viajes|villas|vision|vote|voting|voto|voyage|wang|watch|wed|wien|wiki|works|' +
'local|' + // officially reserved for link-local hostnames
'xxx|xyz|zone|дети|онлайн|орг|сайт|بازار|شبكة|みんな|中信|中文网|公司|公益|在线|我爱你|政务|游戏|移动|网络|集团|삼성)' +
'(?=[^0-9a-zA-Z@]|$))'));
FlowdockText.regexen.validCCTLD = regexSupplant(RegExp(
'(?:(?:ac|ad|ae|af|ag|ai|al|am|an|ao|aq|ar|as|at|au|aw|ax|az|ba|bb|bd|be|bf|bg|bh|bi|bj|bl|bm|bn|bo|bq|br|bs|' +
'bt|bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cu|cv|cw|cx|cy|cz|de|dj|dk|dm|do|dz|ec|ee|eg|eh|er|es|' +
'et|eu|fi|fj|fk|fm|fo|fr|ga|gb|gd|ge|gf|gg|gh|gi|gl|gm|gn|gp|gq|gr|gs|gt|gu|gw|gy|hk|hm|hn|hr|ht|hu|id|ie|il|' +
'im|in|io|iq|ir|is|it|je|jm|jo|jp|ke|kg|kh|ki|km|kn|kp|kr|kw|ky|kz|la|lb|lc|li|lk|lr|ls|lt|lu|lv|ly|ma|mc|md|' +
'me|mf|mg|mh|mk|ml|mm|mn|mo|mp|mq|mr|ms|mt|mu|mv|mw|mx|my|mz|na|nc|ne|nf|ng|ni|nl|no|np|nr|nu|nz|om|pa|pe|pf|' +
'pg|ph|pk|pl|pm|pn|pr|ps|pt|pw|py|qa|re|ro|rs|ru|rw|sa|sb|sc|sd|se|sg|sh|si|sj|sk|sl|sm|sn|so|sr|ss|st|su|sv|' +
'sx|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|um|us|uy|uz|va|vc|ve|vg|vi|vn|vu|wf|ws|' +
'ye|yt|za|zm|zw|мон|рф|срб|укр|қаз|الاردن|الجزائر|السعودية|المغرب|امارات|ایران|بھارت|تونس|سودان|سورية|عمان|فلسطين|قطر|مصر|مليسيا|پاکستان|' +
'भारत|বাংলা|ভারত|ਭਾਰਤ|ભારત|இந்தியா|இலங்கை|சிங்கப்பூர்|భారత్|ලංකා|ไทย|გე|中国|中國|台湾|台灣|新加坡|' +
'香港|한국)(?=[^0-9a-zA-Z@]|$))'));
FlowdockText.regexen.validPunycode = regexSupplant(/(?:xn--[0-9a-z]+)/);
FlowdockText.regexen.validDomain = regexSupplant(/(?:#{validSubdomain}*#{validDomainName}(?:#{validGTLD}|#{validCCTLD}|#{validPunycode}))/);
FlowdockText.regexen.pseudoValidIP = regexSupplant(/(?:\d{1,3}\.\d{1,3}\.\d{1,3}\.\d{1,3})/);
FlowdockText.regexen.validAsciiDomain = regexSupplant(/(?:(?:[a-z0-9#{latinAccentChars}\-]+)\.)+(?:#{validGTLD}|#{validCCTLD}|#{validPunycode})/gi);
FlowdockText.regexen.validPortNumber = regexSupplant(/[0-9]+/);
FlowdockText.regexen.validGeneralUrlPathChars = regexSupplant(/[a-z0-9!\*';:=\+,\.\$\/%#\[\]\-_~|&#{latinAccentChars}]/i);
// Allow URL paths to contain balanced parens
// 1. Used in Wikipedia URLs like /Primer_(film)
// 2. Used in IIS sessions like /S(dfd346)/
FlowdockText.regexen.validUrlBalancedParens = regexSupplant(/\(#{validGeneralUrlPathChars}+\)/i);
// Valid end-of-path chracters (so /foo. does not gobble the period).
// 1. Allow =&# for empty URL parameters and other URL-join artifacts
FlowdockText.regexen.validUrlPathEndingChars = regexSupplant(/[\+\-a-z0-9=_#\/#{latinAccentChars}]|(?:#{validUrlBalancedParens})/i);
// Allow @ in a url, but only in the middle. Catch things like http://example.com/@user/ and Plone urls like http://example.org/my-document/@@as-message
FlowdockText.regexen.validUrlPath = regexSupplant('(?:' +
'(?:' +
'#{validGeneralUrlPathChars}*' +
'(?:#{validUrlBalancedParens}#{validGeneralUrlPathChars}*)*' +
'#{validUrlPathEndingChars}'+
')|(?:(@|@@)#{validGeneralUrlPathChars}*\/?#{validUrlPathEndingChars}+)'+
')', 'i');
FlowdockText.regexen.validUrlQueryChars = /[a-z0-9!?\*'\(\);:&=\+\$\/%#\[\]\-_\.,~|]/i;
FlowdockText.regexen.validUrlQueryEndingChars = /[a-z0-9_&=#\/\)\]]/i;
FlowdockText.regexen.extractUrl = regexSupplant(
'(' + // $1 total match
'(#{validPrecedingChars})' + // $2 Preceeding chracter
'(' + // $3 URL
'(?:' +
'(?:' +
'(https?:\\/\\/)?' + // $4 Protocol (optional)
'(#{validDomain}|#{pseudoValidIP})' + // $5 Domain(s)
')|(?:' + // OR
'(https?:\\/\\/)' + // $6 Protocol
'(#{validDomainName}*(?:#{validDomainChars}|-){2,})(?=:|\/|#{spaces}|\$)' + // $7 Domain with a following port, path, whitespace or an end of string
')' +
')' +
'(?::(#{validPortNumber}))?' + // $8 Port number (optional)
'(\\/#{validUrlPath}*)?' + // $9 URL Path
'(\\?#{validUrlQueryChars}*#{validUrlQueryEndingChars})?' + // $10 Query String
')' +
')'
, 'gi');
FlowdockText.regexen.quoted = regexSupplant('((^|\\n)\\s{4}.*)', 'm')
FlowdockText.regexen.singleUrl = regexSupplant(
'(#{validPrecedingChars})' + // before
'(' + // $1 URL
'(?:' +
'(?:' +
'(https?:\\/\\/)?' + // $2 Protocol (optional)
'(#{validDomain}|#{pseudoValidIP})' + // $3 Domain(s)
')|(?:' + // OR
'(https?:\\/\\/)' + // $4 Protocol
'(#{validDomainName}*(?:#{validDomainChars}|-){2,})(?=:|\/|#{spaces}|\$)' + // $5 Domain with a following port, path, whitespace or an end of string
')' +
')' +
'(?::(#{validPortNumber}))?' + // $6 Port number (optional)
'(\\/#{validUrlPath}*)?' + // $7 URL Path
'(\\?#{validUrlQueryChars}*#{validUrlQueryEndingChars})?' + // $8 Query String
')'
, 'i');
FlowdockText.regexen.validTcoUrl = /^https?:\/\/t\.co\/[a-z0-9]+/i;
// These URL validation pattern strings are based on the ABNF from RFC 3986
FlowdockText.regexen.validateUrlUnreserved = /[a-z0-9\-._~]/i;
FlowdockText.regexen.validateUrlPctEncoded = /(?:%[0-9a-f]{2})/i;
FlowdockText.regexen.validateUrlSubDelims = /[!$&'()*+,;=]/i;
FlowdockText.regexen.validateUrlPchar = regexSupplant('(?:' +
'#{validateUrlUnreserved}|' +
'#{validateUrlPctEncoded}|' +
'#{validateUrlSubDelims}|' +
'[:|@]' +
')', 'i');
FlowdockText.regexen.validateUrlScheme = /(?:[a-z][a-z0-9+\-.]*)/i;
FlowdockText.regexen.validateUrlUserinfo = regexSupplant('(?:' +
'#{validateUrlUnreserved}|' +
'#{validateUrlPctEncoded}|' +
'#{validateUrlSubDelims}|' +
':' +
')*', 'i');
FlowdockText.regexen.validateUrlDecOctet = /(?:[0-9]|(?:[1-9][0-9])|(?:1[0-9]{2})|(?:2[0-4][0-9])|(?:25[0-5]))/i;
FlowdockText.regexen.validateUrlIpv4 = regexSupplant(/(?:#{validateUrlDecOctet}(?:\.#{validateUrlDecOctet}){3})/i);
// Punting on real IPv6 validation for now
FlowdockText.regexen.validateUrlIpv6 = /(?:\[[a-f0-9:\.]+\])/i;
// Also punting on IPvFuture for now
FlowdockText.regexen.validateUrlIp = regexSupplant('(?:' +
'#{validateUrlIpv4}|' +
'#{validateUrlIpv6}' +
')', 'i');
// This is more strict than the rfc specifies
FlowdockText.regexen.validateUrlSubDomainSegment = /(?:[a-z0-9](?:[a-z0-9_\-]*[a-z0-9])?)/i;
FlowdockText.regexen.validateUrlDomainSegment = /(?:[a-z0-9](?:[a-z0-9\-]*[a-z0-9])?)/i;
FlowdockText.regexen.validateUrlDomainTld = /(?:[a-z](?:[a-z0-9\-]*[a-z0-9])?)/i;
FlowdockText.regexen.validateUrlDomain = regexSupplant(/(?:(?:#{validateUrlSubDomainSegment]}\.)*(?:#{validateUrlDomainSegment]}\.)#{validateUrlDomainTld})/i);
FlowdockText.regexen.validateUrlHost = regexSupplant('(?:' +
'#{validateUrlIp}|' +
'#{validateUrlDomain}' +
')', 'i');
// Unencoded internationalized domains - this doesn't check for invalid UTF-8 sequences
FlowdockText.regexen.validateUrlUnicodeSubDomainSegment = /(?:(?:[a-z0-9]|[^\u0000-\u007f])(?:(?:[a-z0-9_\-]|[^\u0000-\u007f])*(?:[a-z0-9]|[^\u0000-\u007f]))?)/i;
FlowdockText.regexen.validateUrlUnicodeDomainSegment = /(?:(?:[a-z0-9]|[^\u0000-\u007f])(?:(?:[a-z0-9\-]|[^\u0000-\u007f])*(?:[a-z0-9]|[^\u0000-\u007f]))?)/i;
FlowdockText.regexen.validateUrlUnicodeDomainTld = /(?:(?:[a-z]|[^\u0000-\u007f])(?:(?:[a-z0-9\-]|[^\u0000-\u007f])*(?:[a-z0-9]|[^\u0000-\u007f]))?)/i;
FlowdockText.regexen.validateUrlUnicodeDomain = regexSupplant(/(?:(?:#{validateUrlUnicodeSubDomainSegment}\.)*(?:#{validateUrlUnicodeDomainSegment}\.)#{validateUrlUnicodeDomainTld})/i);
FlowdockText.regexen.validateUrlUnicodeHost = regexSupplant('(?:' +
'#{validateUrlIp}|' +
'#{validateUrlUnicodeDomain}' +
')', 'i');
FlowdockText.regexen.validateUrlPort = /[0-9]{1,5}/;
FlowdockText.regexen.validateUrlUnicodeAuthority = regexSupplant(
'(?:(#{validateUrlUserinfo})@)?' + // $1 userinfo
'(#{validateUrlUnicodeHost})' + // $2 host
'(?::(#{validateUrlPort}))?' //$3 port
, "i");
FlowdockText.regexen.validateUrlAuthority = regexSupplant(
'(?:(#{validateUrlUserinfo})@)?' + // $1 userinfo
'(#{validateUrlHost})' + // $2 host
'(?::(#{validateUrlPort}))?' // $3 port
, "i");
FlowdockText.regexen.validateUrlPath = regexSupplant(/(\/#{validateUrlPchar}*)*/i);
FlowdockText.regexen.validateUrlQuery = regexSupplant(/(#{validateUrlPchar}|\/|\?)*/i);
FlowdockText.regexen.validateUrlFragment = regexSupplant(/(#{validateUrlPchar}|\/|\?)*/i);
// Modified version of RFC 3986 Appendix B
FlowdockText.regexen.validateUrlUnencoded = regexSupplant(
'^' + // Full URL
'(?:' +
'([^:/?#]+):\\/\\/' + // $1 Scheme
')?' +
'([^/?#]*)' + // $2 Authority
'([^?#]*)' + // $3 Path
'(?:' +
'\\?([^#]*)' + // $4 Query
')?' +
'(?:' +
'#(.*)' + // $5 Fragment
')?$'
, "i");
FlowdockText.regexen.validEmailLocalPart = regexSupplant("[A-z|0-9|.|_|%|+|-]+");
FlowdockText.regexen.email = regexSupplant(
/#{validEmailLocalPart}@#{validDomain}/
, 'gi');
FlowdockText.regexen.extractEmails = regexSupplant(
/(?:^|\s|,|"|')?(#{email})/
, 'gi');
FlowdockText.regexen.singleEmail = regexSupplant(/(?:^|\s|,|"|')?(#{email})/, 'i');
// Default CSS class for auto-linked URLs
var DEFAULT_URL_CLASS = "linkify-link";
// Default CSS class for auto-linked usernames (along with the url class)
var DEFAULT_USERNAME_CLASS = "app-tag-link";
// Default CSS class for auto-linked hashtags (along with the url class)
var DEFAULT_HASHTAG_CLASS = "app-tag-link";
// 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;
}
function checkHashtagMention(match, originalText, position) {
var start = position + match.index;
var before = originalText.slice(0, start);
var after = originalText.slice(start + match[0].length);
return FlowdockText.regexen.startHashTagMatch.test(before) && !FlowdockText.regexen.endHashtagMatch.test(after);
}
var TOKEN_SPECS = [
{
type: "quote",
regex: FlowdockText.regexen.quoted,
check: function () { return true }
},
{
type: "url",
regex: FlowdockText.regexen.singleUrl,
check: function () { return true; },
},
{
type: "hash",
regex: FlowdockText.regexen.singleHashTag,
check: checkHashtagMention,
},
{
type: "mention",
regex: FlowdockText.regexen.singleMention,
check: checkHashtagMention,
},
{
type: "email",
regex: FlowdockText.regexen.singleEmail,
check: function () { return true; },
},
];
function tokenizeHelper(prev, text, originalText, position, spec) {
if (prev !== undefined && (prev === null || prev.start >= position)) {
return prev;
}
var m = text.match(spec.regex);
// console.log("match", m);
if (m) {
if (!spec.check(m, originalText, position)) {
var progress = position + m.index + 1
return tokenizeHelper(prev, originalText.slice(progress), originalText, progress, spec)
}
return {
type: spec.type,
match: m,
start: position + m.index,
end: position + m.index + m[0].length,
}
}
return m;
}
function tokenizeQuote(quoteToken) {
var block = quoteToken.match[0]
var urls = tokenize(block, {url: true}).filter(function(token) { return token.type == 'url'})
if(urls.length > 0)
return urls.map(function(token) {
token.start += quoteToken.start
return token
})
else
return [quoteToken]
}
function tokenize(text, tokenTypes) {
var tokens = [];
var position = 0;
var tokenSpecs = TOKEN_SPECS.filter(function(spec) {
return !tokenTypes || tokenTypes[spec.type ]
})
var ts = new Array(tokenSpecs.length)
while (true) {
// javascript regexps doesn't have "match from" functionality,
// so we need to take a substr
var textpart = text.substr(position);
// try to match all token specs
for (var j = 0; j < ts.length; j++) {
ts[j] = tokenizeHelper(ts[j], textpart, text, position, tokenSpecs[j]);
}
// find match with smallest start offset
var min = undefined;
for (var i = 0; i < ts.length; i++) {
var m = ts[i];
if (!min || (m && m.start < min.start)) {
min = m;
}
}
if (min) {
// if there's a match,
// add text token, if there's something
if (min.start > position) {
tokens.push({
type: "text",
value: textpart.substr(0, min.start - position),
});
}
if(min.type == 'quote') {
tokens.push.apply(tokens, tokenizeQuote(min))
} else {
tokens.push(min);
}
// update position for the next iteration
position = min.end;
} else {
// if none of token specs matched, the rest of the input is plain text
tokens.push({
type: "text",
value: textpart,
});
return tokens;
}
}
}
function transformUrl(options, urlToken) {
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];
}
}
var url = urlToken.match[2],
protocol = (urlToken.match[3] || urlToken.match[5]),
htmlAttrs = "";
var before = urlToken.match[1];
var after = "";
var surroundingParens = false;
if ((url[0] == '(' && url[url.length - 1] == ')') || (url[0] == '[' && url[url.length - 1] == ']')) {
url = url.substr(1, url.length - 2);
surroundingParens = true;
}
for (var k in options) {
htmlAttrs += stringSupplant(" #{k}=\"#{v}\" ", {k: k, v: options[k].toString().replace(/"/, """).replace(/</, "<").replace(/>/, ">")});
}
if (url.match(FlowdockText.regexen.validTcoUrl)) {
url = RegExp.lastMatch;
after = RegExp.rightContext;
}
var d = {
htmlAttrs: htmlAttrs,
url: FlowdockText.htmlEscape(url),
after: after,
before: before,
parenBefore: surroundingParens ? url[0] : '',
parenAfter: surroundingParens ? url[url.length - 1] : ''
};
if (urlEntities && urlEntities[url] && urlEntities[url].display_url) {
d.displayUrl = FlowdockText.htmlEscape(urlEntities[url].display_url);
} else {
d.displayUrl = d.url;
}
if (!protocol) {
d.url = 'http://' + d.url;
}
return stringSupplant("#{parenBefore}#{before}<a href=\"#{url}\"#{htmlAttrs}>#{displayUrl}</a>#{after}#{parenAfter}", d);
}
function transformEmail(options, emailToken) {
return emailToken.match[0].replace(FlowdockText.regexen.email, function(subMatch) {
d = {
subMatch: FlowdockText.htmlEscape(subMatch)
};
for (var k in options) {
if (options.hasOwnProperty(k)) {
d[k] = options[k];
}
}
return stringSupplant("<a href='mailto:#{subMatch}' class='#{emailClass}'>#{subMatch}</a>", d);
});
}
function transformHashTag(options, hashtagToken) {
var match = hashtagToken.match;
var hash = match[1];
var text = match[2];
var d = {
hash: FlowdockText.htmlEscape(hash),
preText: "",
text: FlowdockText.htmlEscape(text),
postText: "",
};
for (var k in options) {
if (options.hasOwnProperty(k)) {
d[k] = options[k];
}
}
return stringSupplant("<a href=\"#{hashtagUrlBase}#{text}\" title=\"##{text}\" class=\"#{hashtagClass}\">#{hash}#{preText}#{text}#{postText}</a>", d);
}
function transformMention(options, userToken) {
var userTags = [];
if(options && options.userTags){
userTags = options.userTags.map(function(tag){ return tag.toLowerCase() });
}
var match = userToken.match;
var hash = match[1];
var text = match[2];
var d = {
hash: FlowdockText.htmlEscape(hash),
preText: "",
text: FlowdockText.htmlEscape(text),
postText: "",
};
for (var k in options) {
if (options.hasOwnProperty(k)) {
d[k] = options[k];
}
}
if (userTags.length !== 0 && !inArray(d.hash + d.text.toLowerCase(), userTags)){
return stringSupplant("#{hash}#{preText}#{text}#{postText}", d);
} else {
return stringSupplant("<a title=\"Search #{hash}#{text}\" class=\"#{hashtagClass}\" href=\"#{hashtagUrlBase}#{hash}#{text}\">#{hash}#{preText}#{text}#{postText}</a>", d);
}
}
function transformToken(options, urlLinkOptions, token) {
switch (token.type) {
case "text":
return token.value;
case "url":
return transformUrl(urlLinkOptions, token);
case "hash":
return transformHashTag(options, token);
case "mention":
return transformMention(options, token);
case "email":
return transformEmail(options, token);
}
}
function autoLinkOptions(options) {
options = clone(options || {});
options.hashtagClass = options.hashtagClass || DEFAULT_HASHTAG_CLASS;
options.hashtagUrlBase = options.hashtagUrlBase || "#flowser/all/";
options.emailClass = options.emailClass || "email-link";
return options;
}
function autoLinkUrlLinkOptions(options) {
return clone(options || {});
}
function filterToken(type, token) {
if (token.type === type || token.type === "text") {
return token;
} else {
return {
type: "text",
value: token.match[0],
};
}
}
function autoLinkImpl(text, options, urlLinkOptions, filter) {
options = autoLinkOptions(options);
urlLinkOptions = autoLinkUrlLinkOptions(urlLinkOptions);
var tokens = tokenize(text);
if (filter) {
tokens = tokens.map(filterToken.bind(null, filter));
}
var parts = tokens.map(transformToken.bind(null, options, urlLinkOptions));
return parts.join("");
}
FlowdockText.autoLink = function(text, options, urlLinkOptions) {
return autoLinkImpl(text, options, urlLinkOptions);
};
FlowdockText.autoLinkHashtags = function(text, options) {
return autoLinkImpl(text, options, {}, "hash");
};
FlowdockText.autoLinkEmails = function(text, options) {
return autoLinkImpl(text, options, {}, "email");
}
FlowdockText.autoLinkUrlsCustom = function(text, urlLinkOptions) {
return autoLinkImpl(text, {}, urlLinkOptions, "url");
};
FlowdockText.autoLinkMentions = function(text, options) {
return autoLinkImpl(text, options, {}, "mention");
};
function stripEmail(email) {
return email.email;
}
FlowdockText.extractEmails = function(text) {
var emailsWithIndices = FlowdockText.extractEmailsWithIndices(text);
return emailsWithIndices.map(stripEmail);
}
FlowdockText.extractEmailsWithIndices = function(text){
return FlowdockText.extractAllWithIndices(text).emails;
}
function extractEmailsWithIndicesFromTokens(tokens) {
tokens = tokens.filter(function (t) {
return t.type == "email";
});
var emails = [];
tokens.forEach(function (t) {
// TODO: refactor, copy paste
return t.match[0].replace(FlowdockText.regexen.email, function(subMatch) {
subMatch = FlowdockText.htmlEscape(subMatch);
var endPosition = t.end + FlowdockText.regexen.extractEmails.lastIndex;
var startPosition = endPosition - subMatch.length;
emails.push({
email: subMatch,
indices: [startPosition, endPosition],
});
});
});
return emails;
}
function stripUrl(url) {
return url.url;
}
FlowdockText.extractUrls = function(text) {
var urlsWithIndices = FlowdockText.extractUrlsWithIndices(text);
return urlsWithIndices.map(stripUrl);
};
FlowdockText.extractUrlsWithIndices = function(text) {
return FlowdockText.extractAllWithIndices(text).urls;
}
function extractUrlsWithIndicesFromTokens(tokens) {
tokens = tokens.filter(function (t) {
return t.type == "url";
});
// tokens.length && console.error(tokens);
var urls = [];
tokens.forEach(function (t) {
var match = t.match;
var before = match[1],
url = match[2],
protocol = (match[3] || match[5]),
domain = (match[4] || match[6]),
path = match[8],
startPosition = t.start + before.length, // TODO: fix
endPosition = t.end;
// if protocol is missing and domain contains non-ASCII characters,
// extract ASCII-only domains.
if (!protocol) {
var lastUrl = null,
lastUrlInvalidMatch = false,
asciiEndPosition = 0;
domain.replace(FlowdockText.regexen.validAsciiDomain, function(asciiDomain) {
var asciiStartPosition = domain.indexOf(asciiDomain, asciiEndPosition);
asciiEndPosition = asciiStartPosition + asciiDomain.length
lastUrl = {
url: asciiDomain,
indices: [startPosition + asciiStartPosition, startPosition + asciiEndPosition]
}
urls.push(lastUrl);
});
// no ASCII-only domain found. Skip the entire URL.
if (lastUrl == null) {
return;
}
// lastUrl only contains domain. Need to add path and query if they exist.
if (path) {
if (lastUrlInvalidMatch) {
urls.push(lastUrl);
}
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(FlowdockText.regexen.validTcoUrl)) {
url = RegExp.lastMatch;
endPosition = startPosition + url.length;
}
urls.push({
url: url,
indices: [startPosition, endPosition]
});
}
});
return urls;
};
function stripHashtag(hashtag) {
return hashtag.tag;
}
FlowdockText.extractHashtags = function(text) {
var hashtagsWithIndices = FlowdockText.extractHashtagsWithIndices(text);
return hashtagsWithIndices.map(stripHashtag);
};
FlowdockText.extractHashtagsWithIndices = function(text) {
return FlowdockText.extractAllWithIndices(text).hashtags;
}
function extractHashtagsWithIndicesFromTokens(tokens) {
tokens = tokens.filter(function (t) {
return t.type == "hash";
})
var tags = [];
tokens.forEach(function (t) {
var match = t.match;
var hash = match[1];
var text = match[2];
var startPosition = t.start;
var endPosition = t.end;
tags.push({
tag: text,
indices: [startPosition, endPosition]
});
});
return tags;
};
FlowdockText.modifyIndicesFromUnicodeToUTF16 = function(text, entities) {
FlowdockText.shiftIndices(text, entities, 1);
};
FlowdockText.modifyIndicesFromUTF16ToUnicode = function(text, entities) {
FlowdockText.shiftIndices(text, entities, -1);
};
FlowdockText.shiftIndices = function(text, entities, diff) {
for (var i = 0; i < text.length - 1; i++) {
var c1 = text.charCodeAt(i);
var c2 = text.charCodeAt(i + 1);
if (0xD800 <= c1 && c1 <= 0xDBFF && 0xDC00 <= c2 && c2 <= 0xDFFF) {
// supplementary character
i++; // skip surrogate pair character
for (var j = 0; j < entities.length; j++) {
if (entities[j].indices[0] >= i) {
entities[j].indices[0] += diff;
entities[j].indices[1] += diff;
}
}
}
}
};
function stripMention(mention) {
return mention.tag;
}
FlowdockText.extractMentions = function(text, userTags){
var mentionsWithIndices = FlowdockText.extractMentionsWithIndices(text, userTags);
return mentionsWithIndices.map(stripMention);
};
FlowdockText.extractMentionsWithIndices = function(text, userTags) {
return FlowdockText.extractAllWithIndices(text, userTags).mentions;
}
function extractMentionsWithIndicesFromTokens(tokens, userTags) {
tokens = tokens.filter(function (t) {
return t.type == "mention";
})
var tags = [];
tokens.forEach(function (t) {
var match = t.match;
var hash = match[1];
var text = match[2];
var startPosition = t.start;
var endPosition = t.end;
tags.push({
tag: hash + text,
indices: [startPosition, endPosition]
});
});
if (userTags) {
userTags = downCase(userTags.map(getUserTag));
return tags.filter(function(tag){ return inArray(tag.tag.toLowerCase(), userTags) });
}
return tags;
};
FlowdockText.extractAllWithIndices = function(text, userTags) {
if (!text) {
return {
hashtags: [],
mentions: [],
emails: [],
urls: [],
};
}
var tokens = tokenize(text)
return {
hashtags: extractHashtagsWithIndicesFromTokens(tokens),
mentions: extractMentionsWithIndicesFromTokens(tokens, userTags),
emails: extractEmailsWithIndicesFromTokens(tokens),
urls: extractUrlsWithIndicesFromTokens(tokens),
}
};
FlowdockText.extractAll = function (text, userTags) {
var withIndices = FlowdockText.extractAllWithIndices(text, userTags);
return {
hashtags: withIndices.hashtags.map(stripHashtag),
mentions: withIndices.mentions.map(stripMention),
emails: withIndices.emails.map(stripEmail),
urls: withIndices.urls.map(stripUrl),
};
};
FlowdockText.mentionsTags = function(check, tags){
if(isArray(check)){
if (isArray(tags)){
return tags.some(function(tag) {
return downCase(check).indexOf(tag) !== -1;
});
} else {
return downCase(check).indexOf(tags) !== -1;
}
} else {
return FlowdockText.mentionsTags(FlowdockText.extractMentions(check), tags);
}
};
FlowdockText.mentionsUser = function(check, user){
if(isArray(check)){
return downCase(check).indexOf(getUserTag(user).toLowerCase()) !== -1;
} else {
return FlowdockText.extractMentions(check, [getUserTag(user)]).length > 0;
}
};
FlowdockText.isValidUrl = function(url, unicodeDomains, requireProtocol) {
if (unicodeDomains == null) {
unicodeDomains = true;
}
if (requireProtocol == null) {
requireProtocol = true;
}
if (!url) {
return false;
}