191 lines
12 KiB
Java
191 lines
12 KiB
Java
package com.twitter;
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import java.util.regex.Pattern;
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//@formatter:off
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public class Regex {
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private static final String UNICODE_SPACES = "[" +
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"\\u0009-\\u000d" + // # White_Space # Cc [5] <control-0009>..<control-000D>
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"\\u0020" + // White_Space # Zs SPACE
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"\\u0085" + // White_Space # Cc <control-0085>
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"\\u00a0" + // White_Space # Zs NO-BREAK SPACE
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"\\u1680" + // White_Space # Zs OGHAM SPACE MARK
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"\\u180E" + // White_Space # Zs MONGOLIAN VOWEL SEPARATOR
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"\\u2000-\\u200a" + // # White_Space # Zs [11] EN QUAD..HAIR SPACE
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"\\u2028" + // White_Space # Zl LINE SEPARATOR
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"\\u2029" + // White_Space # Zp PARAGRAPH SEPARATOR
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"\\u202F" + // White_Space # Zs NARROW NO-BREAK SPACE
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"\\u205F" + // White_Space # Zs MEDIUM MATHEMATICAL SPACE
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"\\u3000" + // White_Space # Zs IDEOGRAPHIC SPACE
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"]";
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private static String LATIN_ACCENTS_CHARS = "\\u00c0-\\u00d6\\u00d8-\\u00f6\\u00f8-\\u00ff" + // Latin-1
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"\\u0100-\\u024f" + // Latin Extended A and B
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"\\u0253\\u0254\\u0256\\u0257\\u0259\\u025b\\u0263\\u0268\\u026f\\u0272\\u0289\\u028b" + // IPA Extensions
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"\\u02bb" + // Hawaiian
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"\\u0300-\\u036f" + // Combining diacritics
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"\\u1e00-\\u1eff"; // Latin Extended Additional (mostly for Vietnamese)
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private static final String HASHTAG_ALPHA_CHARS = "a-z" + LATIN_ACCENTS_CHARS +
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"\\u0400-\\u04ff\\u0500-\\u0527" + // Cyrillic
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"\\u2de0-\\u2dff\\ua640-\\ua69f" + // Cyrillic Extended A/B
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"\\u0591-\\u05bf\\u05c1-\\u05c2\\u05c4-\\u05c5\\u05c7" +
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"\\u05d0-\\u05ea\\u05f0-\\u05f4" + // Hebrew
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"\\ufb1d-\\ufb28\\ufb2a-\\ufb36\\ufb38-\\ufb3c\\ufb3e\\ufb40-\\ufb41" +
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"\\ufb43-\\ufb44\\ufb46-\\ufb4f" + // Hebrew Pres. Forms
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"\\u0610-\\u061a\\u0620-\\u065f\\u066e-\\u06d3\\u06d5-\\u06dc" +
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"\\u06de-\\u06e8\\u06ea-\\u06ef\\u06fa-\\u06fc\\u06ff" + // Arabic
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"\\u0750-\\u077f\\u08a0\\u08a2-\\u08ac\\u08e4-\\u08fe" + // Arabic Supplement and Extended A
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"\\ufb50-\\ufbb1\\ufbd3-\\ufd3d\\ufd50-\\ufd8f\\ufd92-\\ufdc7\\ufdf0-\\ufdfb" + // Pres. Forms A
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"\\ufe70-\\ufe74\\ufe76-\\ufefc" + // Pres. Forms B
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"\\u200c" + // Zero-Width Non-Joiner
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"\\u0e01-\\u0e3a\\u0e40-\\u0e4e" + // Thai
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"\\u1100-\\u11ff\\u3130-\\u3185\\uA960-\\uA97F\\uAC00-\\uD7AF\\uD7B0-\\uD7FF" + // Hangul (Korean)
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"\\p{InHiragana}\\p{InKatakana}" + // Japanese Hiragana and Katakana
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"\\p{InCJKUnifiedIdeographs}" + // Japanese Kanji / Chinese Han
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"\\u3003\\u3005\\u303b" + // Kanji/Han iteration marks
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"\\uff21-\\uff3a\\uff41-\\uff5a" + // full width Alphabet
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"\\uff66-\\uff9f" + // half width Katakana
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"\\uffa1-\\uffdc"; // half width Hangul (Korean)
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private static final String HASHTAG_ALPHA_NUMERIC_CHARS = "0-9\\uff10-\\uff19_" + HASHTAG_ALPHA_CHARS;
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private static final String HASHTAG_ALPHA = "[" + HASHTAG_ALPHA_CHARS +"]";
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private static final String HASHTAG_ALPHA_NUMERIC = "[" + HASHTAG_ALPHA_NUMERIC_CHARS +"]";
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/**
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* Fullwidth at sign: '@'
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*/
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private static final char FULLWIDTH_AT_SIGN = '\uff20';
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/**
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* Fullwidth number sign: '#'
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*/
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private static final char FULLWIDTH_NUMBER_SIGN = '\uff03';
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/* URL related hash regex collection */
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private static final String URL_VALID_PRECEEDING_CHARS = "(?:[^A-Z0-9@"+FULLWIDTH_AT_SIGN+"$#"+FULLWIDTH_NUMBER_SIGN+"\u202A-\u202E]|^)";
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private static final String URL_VALID_CHARS = "[\\p{Alnum}" + LATIN_ACCENTS_CHARS + "]";
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private static final String URL_VALID_SUBDOMAIN = "(?:(?:" + URL_VALID_CHARS + "[" + URL_VALID_CHARS + "\\-_]*)?" + URL_VALID_CHARS + "\\.)";
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private static final String URL_VALID_DOMAIN_NAME = "(?:(?:" + URL_VALID_CHARS + "[" + URL_VALID_CHARS + "\\-]*)?" + URL_VALID_CHARS + "\\.)";
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/* Any non-space, non-punctuation characters. \p{Z} = any kind of whitespace or invisible separator. */
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private static final String URL_VALID_UNICODE_CHARS = "[.[^\\p{Punct}\\s\\p{Z}\\p{InGeneralPunctuation}]]";
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private static final String URL_VALID_GTLD =
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"(?:(?:aero|asia|biz|cat|com|coop|edu|gov|info|int|jobs|mil|mobi|museum|name|net|org|pro|tel|travel|xxx)(?=\\P{Alnum}|$))";
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private static final String URL_VALID_CCTLD =
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"(?:(?: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|bm|bn|bo|br|bs|bt|" +
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"bv|bw|by|bz|ca|cc|cd|cf|cg|ch|ci|ck|cl|cm|cn|co|cr|cs|cu|cv|cx|cy|cz|dd|de|dj|dk|dm|do|dz|ec|ee|eg|eh|" +
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"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|" +
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"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|" +
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"lu|lv|ly|ma|mc|md|me|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|" +
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"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|" +
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"sl|sm|sn|so|sr|ss|st|su|sv|sy|sz|tc|td|tf|tg|th|tj|tk|tl|tm|tn|to|tp|tr|tt|tv|tw|tz|ua|ug|uk|us|uy|uz|" +
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"va|vc|ve|vg|vi|vn|vu|wf|ws|ye|yt|za|zm|zw)(?=\\P{Alnum}|$))";
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private static final String URL_PUNYCODE = "(?:xn--[0-9a-z]+)";
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private static final String URL_VALID_DOMAIN =
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"(?:" + // subdomains + domain + TLD
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URL_VALID_SUBDOMAIN + "+" + URL_VALID_DOMAIN_NAME + // e.g. www.twitter.com, foo.co.jp, bar.co.uk
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"(?:" + URL_VALID_GTLD + "|" + URL_VALID_CCTLD + "|" + URL_PUNYCODE + ")" +
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")" +
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"|(?:" + // domain + gTLD
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URL_VALID_DOMAIN_NAME + // e.g. twitter.com
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"(?:" + URL_VALID_GTLD + "|" + URL_PUNYCODE + ")" +
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")" +
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"|(?:" + "(?<=https?://)" +
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"(?:" +
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"(?:" + URL_VALID_DOMAIN_NAME + URL_VALID_CCTLD + ")" + // protocol + domain + ccTLD
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"|(?:" +
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URL_VALID_UNICODE_CHARS + "+\\." + // protocol + unicode domain + TLD
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"(?:" + URL_VALID_GTLD + "|" + URL_VALID_CCTLD + ")" +
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")" +
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")" +
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")" +
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"|(?:" + // domain + ccTLD + '/'
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URL_VALID_DOMAIN_NAME + URL_VALID_CCTLD + "(?=/)" + // e.g. t.co/
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")";
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private static final String URL_VALID_PORT_NUMBER = "[0-9]++";
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private static final String URL_VALID_GENERAL_PATH_CHARS = "[a-z0-9!\\*';:=\\+,.\\$/%#\\[\\]\\-_~\\|&" + LATIN_ACCENTS_CHARS + "]";
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/** Allow URL paths to contain balanced parens
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* 1. Used in Wikipedia URLs like /Primer_(film)
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* 2. Used in IIS sessions like /S(dfd346)/
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**/
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private static final String URL_BALANCED_PARENS = "\\(" + URL_VALID_GENERAL_PATH_CHARS + "+\\)";
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/** Valid end-of-path chracters (so /foo. does not gobble the period).
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* 2. Allow =&# for empty URL parameters and other URL-join artifacts
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**/
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private static final String URL_VALID_PATH_ENDING_CHARS = "[a-z0-9=_#/\\-\\+" + LATIN_ACCENTS_CHARS + "]|(?:" + URL_BALANCED_PARENS +")";
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private static final String URL_VALID_PATH = "(?:" +
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"(?:" +
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URL_VALID_GENERAL_PATH_CHARS + "*" +
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"(?:" + URL_BALANCED_PARENS + URL_VALID_GENERAL_PATH_CHARS + "*)*" +
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URL_VALID_PATH_ENDING_CHARS +
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")|(?:@" + URL_VALID_GENERAL_PATH_CHARS + "+/)" +
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")";
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private static final String URL_VALID_URL_QUERY_CHARS = "[a-z0-9!?\\*'\\(\\);:&=\\+\\$/%#\\[\\]\\-_\\.,~\\|]";
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private static final String URL_VALID_URL_QUERY_ENDING_CHARS = "[a-z0-9_&=#/]";
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private static final String VALID_URL_PATTERN_STRING =
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"(" + // $1 total match
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"(" + URL_VALID_PRECEEDING_CHARS + ")" + // $2 Preceeding chracter
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"(" + // $3 URL
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"(https?://)?" + // $4 Protocol (optional)
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"(" + URL_VALID_DOMAIN + ")" + // $5 Domain(s)
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"(?::(" + URL_VALID_PORT_NUMBER +"))?" + // $6 Port number (optional)
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"(/" +
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URL_VALID_PATH + "*+" +
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")?" + // $7 URL Path and anchor
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"(\\?" + URL_VALID_URL_QUERY_CHARS + "*" + // $8 Query String
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URL_VALID_URL_QUERY_ENDING_CHARS + ")?" +
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")" +
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")";
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private static String AT_SIGNS_CHARS = "@\uFF20";
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private static final String DOLLAR_SIGN_CHAR = "\\$";
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private static final String CASHTAG = "[a-z]{1,6}(?:[._][a-z]{1,2})?";
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/* Begin public constants */
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public static final Pattern VALID_HASHTAG = Pattern.compile("(^|[^&" + HASHTAG_ALPHA_NUMERIC_CHARS + "])((#|\uFF03)(" + HASHTAG_ALPHA_NUMERIC + "*" + HASHTAG_ALPHA + HASHTAG_ALPHA_NUMERIC + "*))", Pattern.CASE_INSENSITIVE);
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public static final int VALID_HASHTAG_GROUP_BEFORE = 1;
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public static final int VALID_HASHTAG_GROUP_HASHTAG_FULL = 2;
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public static final int VALID_HASHTAG_GROUP_HASH = 3;
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public static final int VALID_HASHTAG_GROUP_TAG = 4;
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public static final Pattern INVALID_HASHTAG_MATCH_END = Pattern.compile("^(?:[#"+FULLWIDTH_NUMBER_SIGN+"]|://)");
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public static final Pattern AT_SIGNS = Pattern.compile("[" + AT_SIGNS_CHARS + "]");
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public static final Pattern VALID_MENTION_OR_LIST = Pattern.compile("([^a-z0-9_!#$%&*" + AT_SIGNS_CHARS + "]|^|RT:?)(" + AT_SIGNS + "+)([a-z0-9_]{1,20})(\\/([a-z][a-z0-9_\\-]{0,24}))?", Pattern.CASE_INSENSITIVE);
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public static final int VALID_MENTION_OR_LIST_GROUP_BEFORE = 1;
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public static final int VALID_MENTION_OR_LIST_GROUP_AT = 2;
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public static final int VALID_MENTION_OR_LIST_GROUP_USERNAME = 3;
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public static final int VALID_MENTION_OR_LIST_GROUP_LIST_WITH_SLASH = 4;
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public static final int VALID_MENTION_OR_LIST_GROUP_LIST = 5;
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public static final Pattern VALID_REPLY = Pattern.compile("^(?:" + UNICODE_SPACES + ")*" + AT_SIGNS + "([a-z0-9_]{1,20})", Pattern.CASE_INSENSITIVE);
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public static final int VALID_REPLY_GROUP_USERNAME = 1;
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public static final Pattern INVALID_MENTION_MATCH_END = Pattern.compile("^(?:[" + AT_SIGNS_CHARS + LATIN_ACCENTS_CHARS + "]|://)");
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public static final Pattern VALID_URL = Pattern.compile(VALID_URL_PATTERN_STRING, Pattern.CASE_INSENSITIVE);
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public static final int VALID_URL_GROUP_ALL = 1;
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public static final int VALID_URL_GROUP_BEFORE = 2;
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public static final int VALID_URL_GROUP_URL = 3;
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public static final int VALID_URL_GROUP_PROTOCOL = 4;
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public static final int VALID_URL_GROUP_DOMAIN = 5;
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public static final int VALID_URL_GROUP_PORT = 6;
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public static final int VALID_URL_GROUP_PATH = 7;
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public static final int VALID_URL_GROUP_QUERY_STRING = 8;
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public static final Pattern VALID_TCO_URL = Pattern.compile("^https?:\\/\\/t\\.co\\/[a-z0-9]+", Pattern.CASE_INSENSITIVE);
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public static final Pattern INVALID_URL_WITHOUT_PROTOCOL_MATCH_BEGIN = Pattern.compile("[-_./]$");
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public static final Pattern VALID_CASHTAG = Pattern.compile("((?:^|" + UNICODE_SPACES + ")((" + DOLLAR_SIGN_CHAR + ")(" + CASHTAG + "))" +"(?=$|\\s|\\p{Punct}))", Pattern.CASE_INSENSITIVE);
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public static final int VALID_CASHTAG_GROUP_CASHTAG_FULL = 2;
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public static final int VALID_CASHTAG_GROUP_CASH = 3;
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public static final int VALID_CASHTAG_GROUP_TAG = 4;
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}
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