I using this pattern to find any word in the string:
\b(\w{1,})
but this can't find arabic words. How can I change this pattern to find both english and arabic words?
Thanks
Regex \w is an alias for A-z, 0-9, and _ (underscore) and will not match arabic unicode range. To include characters other than A-z you need to specify them, for example
[A-z\u0600-\u065F\u066A-\u06EF\u06FA-\u06FF]+
For explanation about character codes see Match Arabic word with regex that ends with “#”?
If your text only includes English and Arabic, and you want to sort the results, you could use this:
([^x00-\x7F ]+) for the Arabic text and this: (\w+) for the English text
The first part captures all characters other than the English set plus a space; the second part captures English characters (plus _).
Like smirnov said, that regex you're using will only find Latin strings. For Arabic you should use [\u0600-\u06ff]|[\u0750-\u077f]|[\ufb50-\ufbc1]|[\ufbd3-\ufd3f]|[\ufd50-\ufd8f]|[\ufd92-\ufdc7]|[\ufe70-\ufefc]|[\uFDF0-\uFDFD] (which should find all Arabic characters, even weird ones like .)
Depending on what you're trying to do, you might want to split the string into a list and process it that way (that's what I usually end up doing when I'm dealing with mixed-language texts). Then you can identify the language of each word and process it accordingly.
Related
How do I cover all lowercase non-numeric word characters in a regex?
For example this would cover Müller for german umlauts
/[A-Z][a-zäöü-]+/g
...but what about french or spanish word characters? Is it possible to get those covered by a range or something like that?
The regex should NOT match a string which has multiple uppercase characters, like DOntGetMe. But it should match McDonald.
So I came up at the end with
/([A-Z][a-zäöü'-](?:[\w'-]+)?)/g
But it still don't cover french/spanish characters.
https://regex101.com/r/ofl4tj/2
Match
Smith
Müller
McDonald
O'Riley
Lee
Li
Manco-Johnson
Don't match
MIsspelled
ABC
Since you are looking for a letter from English alphabet as beginning of word use a word boundary \b right before [A-Z]. Using Unicode CLDR or Mother E**, to match all lowercase letters from all languages (\p{Ll}) this would be the regex:
(?:[a-z\xB5\xDF-\xF6\xF8-\xFF\u0101\u0103\u0105\u0107\u0109\u010B\u010D\u010F\u0111\u0113\u0115\u0117\u0119\u011B\u011D\u011F\u0121\u0123\u0125\u0127\u0129\u012B\u012D\u012F\u0131\u0133\u0135\u0137\u0138\u013A\u013C\u013E\u0140\u0142\u0144\u0146\u0148\u0149\u014B\u014D\u014F\u0151\u0153\u0155\u0157\u0159\u015B\u015D\u015F\u0161\u0163\u0165\u0167\u0169\u016B\u016D\u016F\u0171\u0173\u0175\u0177\u017A\u017C\u017E-\u0180\u0183\u0185\u0188\u018C\u018D\u0192\u0195\u0199-\u019B\u019E\u01A1\u01A3\u01A5\u01A8\u01AA\u01AB\u01AD\u01B0\u01B4\u01B6\u01B9\u01BA\u01BD-\u01BF\u01C6\u01C9\u01CC\u01CE\u01D0\u01D2\u01D4\u01D6\u01D8\u01DA\u01DC\u01DD\u01DF\u01E1\u01E3\u01E5\u01E7\u01E9\u01EB\u01ED\u01EF\u01F0\u01F3\u01F5\u01F9\u01FB\u01FD\u01FF\u0201\u0203\u0205\u0207\u0209\u020B\u020D\u020F\u0211\u0213\u0215\u0217\u0219\u021B\u021D\u021F\u0221\u0223\u0225\u0227\u0229\u022B\u022D\u022F\u0231\u0233-\u0239\u023C\u023F\u0240\u0242\u0247\u0249\u024B\u024D\u024F-\u0293\u0295-\u02AF\u0371\u0373\u0377\u037B-\u037D\u0390\u03AC-\u03CE\u03D0\u03D1\u03D5-\u03D7\u03D9\u03DB\u03DD\u03DF\u03E1\u03E3\u03E5\u03E7\u03E9\u03EB\u03ED\u03EF-\u03F3\u03F5\u03F8\u03FB\u03FC\u0430-\u045F\u0461\u0463\u0465\u0467\u0469\u046B\u046D\u046F\u0471\u0473\u0475\u0477\u0479\u047B\u047D\u047F\u0481\u048B\u048D\u048F\u0491\u0493\u0495\u0497\u0499\u049B\u049D\u049F\u04A1\u04A3\u04A5\u04A7\u04A9\u04AB\u04AD\u04AF\u04B1\u04B3\u04B5\u04B7\u04B9\u04BB\u04BD\u04BF\u04C2\u04C4\u04C6\u04C8\u04CA\u04CC\u04CE\u04CF\u04D1\u04D3\u04D5\u04D7\u04D9\u04DB\u04DD\u04DF\u04E1\u04E3\u04E5\u04E7\u04E9\u04EB\u04ED\u04EF\u04F1\u04F3\u04F5\u04F7\u04F9\u04FB\u04FD\u04FF\u0501\u0503\u0505\u0507\u0509\u050B\u050D\u050F\u0511\u0513\u0515\u0517\u0519\u051B\u051D\u051F\u0521\u0523\u0525\u0527\u0529\u052B\u052D\u052F\u0560-\u0588\u10D0-\u10FA\u10FD-\u10FF\u13F8-\u13FD\u1C80-\u1C88\u1D00-\u1D2B\u1D6B-\u1D77\u1D79-\u1D9A\u1E01\u1E03\u1E05\u1E07\u1E09\u1E0B\u1E0D\u1E0F\u1E11\u1E13\u1E15\u1E17\u1E19\u1E1B\u1E1D\u1E1F\u1E21\u1E23\u1E25\u1E27\u1E29\u1E2B\u1E2D\u1E2F\u1E31\u1E33\u1E35\u1E37\u1E39\u1E3B\u1E3D\u1E3F\u1E41\u1E43\u1E45\u1E47\u1E49\u1E4B\u1E4D\u1E4F\u1E51\u1E53\u1E55\u1E57\u1E59\u1E5B\u1E5D\u1E5F\u1E61\u1E63\u1E65\u1E67\u1E69\u1E6B\u1E6D\u1E6F\u1E71\u1E73\u1E75\u1E77\u1E79\u1E7B\u1E7D\u1E7F\u1E81\u1E83\u1E85\u1E87\u1E89\u1E8B\u1E8D\u1E8F\u1E91\u1E93\u1E95-\u1E9D\u1E9F\u1EA1\u1EA3\u1EA5\u1EA7\u1EA9\u1EAB\u1EAD\u1EAF\u1EB1\u1EB3\u1EB5\u1EB7\u1EB9\u1EBB\u1EBD\u1EBF\u1EC1\u1EC3\u1EC5\u1EC7\u1EC9\u1ECB\u1ECD\u1ECF\u1ED1\u1ED3\u1ED5\u1ED7\u1ED9\u1EDB\u1EDD\u1EDF\u1EE1\u1EE3\u1EE5\u1EE7\u1EE9\u1EEB\u1EED\u1EEF\u1EF1\u1EF3\u1EF5\u1EF7\u1EF9\u1EFB\u1EFD\u1EFF-\u1F07\u1F10-\u1F15\u1F20-\u1F27\u1F30-\u1F37\u1F40-\u1F45\u1F50-\u1F57\u1F60-\u1F67\u1F70-\u1F7D\u1F80-\u1F87\u1F90-\u1F97\u1FA0-\u1FA7\u1FB0-\u1FB4\u1FB6\u1FB7\u1FBE\u1FC2-\u1FC4\u1FC6\u1FC7\u1FD0-\u1FD3\u1FD6\u1FD7\u1FE0-\u1FE7\u1FF2-\u1FF4\u1FF6\u1FF7\u210A\u210E\u210F\u2113\u212F\u2134\u2139\u213C\u213D\u2146-\u2149\u214E\u2184\u2C30-\u2C5E\u2C61\u2C65\u2C66\u2C68\u2C6A\u2C6C\u2C71\u2C73\u2C74\u2C76-\u2C7B\u2C81\u2C83\u2C85\u2C87\u2C89\u2C8B\u2C8D\u2C8F\u2C91\u2C93\u2C95\u2C97\u2C99\u2C9B\u2C9D\u2C9F\u2CA1\u2CA3\u2CA5\u2CA7\u2CA9\u2CAB\u2CAD\u2CAF\u2CB1\u2CB3\u2CB5\u2CB7\u2CB9\u2CBB\u2CBD\u2CBF\u2CC1\u2CC3\u2CC5\u2CC7\u2CC9\u2CCB\u2CCD\u2CCF\u2CD1\u2CD3\u2CD5\u2CD7\u2CD9\u2CDB\u2CDD\u2CDF\u2CE1\u2CE3\u2CE4\u2CEC\u2CEE\u2CF3\u2D00-\u2D25\u2D27\u2D2D\uA641\uA643\uA645\uA647\uA649\uA64B\uA64D\uA64F\uA651\uA653\uA655\uA657\uA659\uA65B\uA65D\uA65F\uA661\uA663\uA665\uA667\uA669\uA66B\uA66D\uA681\uA683\uA685\uA687\uA689\uA68B\uA68D\uA68F\uA691\uA693\uA695\uA697\uA699\uA69B\uA723\uA725\uA727\uA729\uA72B\uA72D\uA72F-\uA731\uA733\uA735\uA737\uA739\uA73B\uA73D\uA73F\uA741\uA743\uA745\uA747\uA749\uA74B\uA74D\uA74F\uA751\uA753\uA755\uA757\uA759\uA75B\uA75D\uA75F\uA761\uA763\uA765\uA767\uA769\uA76B\uA76D\uA76F\uA771-\uA778\uA77A\uA77C\uA77F\uA781\uA783\uA785\uA787\uA78C\uA78E\uA791\uA793-\uA795\uA797\uA799\uA79B\uA79D\uA79F\uA7A1\uA7A3\uA7A5\uA7A7\uA7A9\uA7AF\uA7B5\uA7B7\uA7B9\uA7FA\uAB30-\uAB5A\uAB60-\uAB65\uAB70-\uABBF\uFB00-\uFB06\uFB13-\uFB17\uFF41-\uFF5A]|\uD801[\uDC28-\uDC4F\uDCD8-\uDCFB]|\uD803[\uDCC0-\uDCF2]|\uD806[\uDCC0-\uDCDF]|\uD81B[\uDE60-\uDE7F]|\uD835[\uDC1A-\uDC33\uDC4E-\uDC54\uDC56-\uDC67\uDC82-\uDC9B\uDCB6-\uDCB9\uDCBB\uDCBD-\uDCC3\uDCC5-\uDCCF\uDCEA-\uDD03\uDD1E-\uDD37\uDD52-\uDD6B\uDD86-\uDD9F\uDDBA-\uDDD3\uDDEE-\uDE07\uDE22-\uDE3B\uDE56-\uDE6F\uDE8A-\uDEA5\uDEC2-\uDEDA\uDEDC-\uDEE1\uDEFC-\uDF14\uDF16-\uDF1B\uDF36-\uDF4E\uDF50-\uDF55\uDF70-\uDF88\uDF8A-\uDF8F\uDFAA-\uDFC2\uDFC4-\uDFC9\uDFCB]|\uD83A[\uDD22-\uDD43])
\b is not Unicode aware in JS so you can't use it for multi-byte letters - I'm not sure if you need it either. But if you do translate \p{L}\p{D} using above tools and use it in a negative lookahead (?!...) or simply do a (?!\S). The latter is more general but most of times satisfies the needs.
I am using a JavaScript RegEx which is mentioned below:
^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*([-_.])).+$
This accepts only that text which has at least 1: uppercase letter, lowercase letter, number & a special symbol from .-_.
Now assume I supply User-123 as the user id which confirms to the above RegEx & I use the onscreen keyboard to type in a character from Finnish language, which results in User-123Ã.
The RegEx being fulfilled, the text is accepted by my JavaScript code, but I want it to only accept Alphanumeric input in English, and nothing else.
How should I enhance this RegEx to do so?
This string "User-123Ã" have contain Unicode "Ã" not alphabets, so how can identify js code,
[Code] [Glyph] [Decimal] [HTML] Description [#]
U+00C3 Ã Ã Ã Latin Capital letter A with tilde 0131
Try this link also,
How to find whether a particular string has unicode characters
I am not sure this will solve the issue, but in most cases when you want to restrict the input itself to some characters, your consuming pattern should only match those characters you allow. The lookahead restrictions just require or forbid certain characters to appear certain number of times at certain positions, but what you match in the consuming part is crucial.
.+$ allows all letters. Replace it with [\w.-]+$ (\w = [a-zA-Z0-9_]) instead to restrict to the characters you require in the lookaheads.
In JavaScript, its easy to match letters and accents with this regex:
text.match(/[a-z\u00E0-\u00FC]+/i);
And only the lowercase letters and accents without the i option:
text.match(/[a-z\u00E0-\u00FC]+/);
But what is the correct regular expression to match only capitalized letters and accents?
EDIT: like the answers already mention below, the regex above also matches some other signs, and miss some special accent characters like ý and Ý, ć and Ć and many others.
The range U+00C0 - U+00DC should be the uppercase equivalent for U+00E0 - U+00FC
So this text.match(/[A-Z\u00C0-\u00DC]+/); should be what you are looking for.
A site like graphemica can help you to determine the ranges you need yourself.
EDIT like the other answers already mention, this also matches some other signs.
Replace a-z with A-Z and \u00E0-\u00FC with \u00C0-\u00DC to match the same letters in uppercase as text.match(/[a-z\u00E0-\u00FC]+/); matches in lowercase.
However!
This is not a proper implementation, neither for lowercase nor for uppercase letters, as, for example, your lowercase match includes ÷ (division sign), which is not at all a letter, and my uppercase string will match × (multiplication sign), which looks like an X, but isn't actually a letter either.
In addition to that, you're missing characters like ý and Ý, ć and Ć and many, many others.
Your first regex doesn't actually match letters and accents: it only matches letters and a specific subset of accented letters, namely the ones between unicode codepoints \u00E0 and \u00FC. This range does not include any capital letters, while it does include e.g. the ÷ sign and some letters not generally regarded as 'accented'.
Depending on what you actually need, this may not be what you want. If you really want to match all capitals letters and all capital letters with the same accents, you need the regex /[A-Z\u00C0-\u00DC]+/, but please check with e.g. http://unicode-table.com/en/#basic-latin to check whether it suits your needs.
To match all capitalized letters, accented or not, you may use the following unicode regex /\p{Lu}+/u. For example, in node repl:
Note that this will match non-latin letters as well, like the capital greek delta Δ in the example.
I want to delete from string all characters that are not letters.
I know that there is something like \W in regex, but it considers non-English characters as not letters. For example my script deletes all Polish letters (like "ą", "ć", "ó"), but I need them.
How to tell regex to do this?
Code:
var text = text.replace(/\W/g, ' ');
You can either use Steve Levithan's XRegExp library (with Unicode plugins), or you have to define the Unicode character range manually, since JavaScript doesn't support Unicode properties.
[^\u0041-\u005A\u0061-\u007A\u00AA\u00B5\u00BA\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u02C1\u02C6-\u02D1\u02E0-\u02E4\u02EC\u02EE\u0345\u0370-\u0374\u0376\u0377\u037A-\u037D\u0386\u0388-\u038A\u038C\u038E-\u03A1\u03A3-\u03F5\u03F7-\u0481\u048A-\u0527\u0531-\u0556\u0559\u0561-\u0587\u05B0-\u05BD\u05BF\u05C1\u05C2\u05C4\u05C5\u05C7\u05D0-\u05EA\u05F0-\u05F2\u0610-\u061A\u0620-\u0657\u0659-\u065F\u066E-\u06D3\u06D5-\u06DC\u06E1-\u06E8\u06ED-\u06EF\u06FA-\u06FC\u06FF\u0710-\u073F\u074D-\u07B1\u07CA-\u07EA\u07F4\u07F5\u07FA\u0800-\u0817\u081A-\u082C\u0840-\u0858\u08A0\u08A2-\u08AC\u08E4-\u08E9\u08F0-\u08FE\u0900-\u093B\u093D-\u094C\u094E-\u0950\u0955-\u0963\u0971-\u0977\u0979-\u097F\u0981-\u0983\u0985-\u098C\u098F\u0990\u0993-\u09A8\u09AA-\u09B0\u09B2\u09B6-\u09B9\u09BD-\u09C4\u09C7\u09C8\u09CB\u09CC\u09CE\u09D7\u09DC\u09DD\u09DF-\u09E3\u09F0\u09F1\u0A01-\u0A03\u0A05-\u0A0A\u0A0F\u0A10\u0A13-\u0A28\u0A2A-\u0A30\u0A32\u0A33\u0A35\u0A36\u0A38\u0A39\u0A3E-\u0A42\u0A47\u0A48\u0A4B\u0A4C\u0A51\u0A59-\u0A5C\u0A5E\u0A70-\u0A75\u0A81-\u0A83\u0A85-\u0A8D\u0A8F-\u0A91\u0A93-\u0AA8\u0AAA-\u0AB0\u0AB2\u0AB3\u0AB5-\u0AB9\u0ABD-\u0AC5\u0AC7-\u0AC9\u0ACB\u0ACC\u0AD0\u0AE0-\u0AE3\u0B01-\u0B03\u0B05-\u0B0C\u0B0F\u0B10\u0B13-\u0B28\u0B2A-\u0B30\u0B32\u0B33\u0B35-\u0B39\u0B3D-\u0B44\u0B47\u0B48\u0B4B\u0B4C\u0B56\u0B57\u0B5C\u0B5D\u0B5F-\u0B63\u0B71\u0B82\u0B83\u0B85-\u0B8A\u0B8E-\u0B90\u0B92-\u0B95\u0B99\u0B9A\u0B9C\u0B9E\u0B9F\u0BA3\u0BA4\u0BA8-\u0BAA\u0BAE-\u0BB9\u0BBE-\u0BC2\u0BC6-\u0BC8\u0BCA-\u0BCC\u0BD0\u0BD7\u0C01-\u0C03\u0C05-\u0C0C\u0C0E-\u0C10\u0C12-\u0C28\u0C2A-\u0C33\u0C35-\u0C39\u0C3D-\u0C44\u0C46-\u0C48\u0C4A-\u0C4C\u0C55\u0C56\u0C58\u0C59\u0C60-\u0C63\u0C82\u0C83\u0C85-\u0C8C\u0C8E-\u0C90\u0C92-\u0CA8\u0CAA-\u0CB3\u0CB5-\u0CB9\u0CBD-\u0CC4\u0CC6-\u0CC8\u0CCA-\u0CCC\u0CD5\u0CD6\u0CDE\u0CE0-\u0CE3\u0CF1\u0CF2\u0D02\u0D03\u0D05-\u0D0C\u0D0E-\u0D10\u0D12-\u0D3A\u0D3D-\u0D44\u0D46-\u0D48\u0D4A-\u0D4C\u0D4E\u0D57\u0D60-\u0D63\u0D7A-\u0D7F\u0D82\u0D83\u0D85-\u0D96\u0D9A-\u0DB1\u0DB3-\u0DBB\u0DBD\u0DC0-\u0DC6\u0DCF-\u0DD4\u0DD6\u0DD8-\u0DDF\u0DF2\u0DF3\u0E01-\u0E3A\u0E40-\u0E46\u0E4D\u0E81\u0E82\u0E84\u0E87\u0E88\u0E8A\u0E8D\u0E94-\u0E97\u0E99-\u0E9F\u0EA1-\u0EA3\u0EA5\u0EA7\u0EAA\u0EAB\u0EAD-\u0EB9\u0EBB-\u0EBD\u0EC0-\u0EC4\u0EC6\u0ECD\u0EDC-\u0EDF\u0F00\u0F40-\u0F47\u0F49-\u0F6C\u0F71-\u0F81\u0F88-\u0F97\u0F99-\u0FBC\u1000-\u1036\u1038\u103B-\u103F\u1050-\u1062\u1065-\u1068\u106E-\u1086\u108E\u109C\u109D\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\u135F\u1380-\u138F\u13A0-\u13F4\u1401-\u166C\u166F-\u167F\u1681-\u169A\u16A0-\u16EA\u16EE-\u16F0\u1700-\u170C\u170E-\u1713\u1720-\u1733\u1740-\u1753\u1760-\u176C\u176E-\u1770\u1772\u1773\u1780-\u17B3\u17B6-\u17C8\u17D7\u17DC\u1820-\u1877\u1880-\u18AA\u18B0-\u18F5\u1900-\u191C\u1920-\u192B\u1930-\u1938\u1950-\u196D\u1970-\u1974\u1980-\u19AB\u19B0-\u19C9\u1A00-\u1A1B\u1A20-\u1A5E\u1A61-\u1A74\u1AA7\u1B00-\u1B33\u1B35-\u1B43\u1B45-\u1B4B\u1B80-\u1BA9\u1BAC-\u1BAF\u1BBA-\u1BE5\u1BE7-\u1BF1\u1C00-\u1C35\u1C4D-\u1C4F\u1C5A-\u1C7D\u1CE9-\u1CEC\u1CEE-\u1CF3\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\u2160-\u2188\u24B6-\u24E9\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\u2DE0-\u2DFF\u2E2F\u3005-\u3007\u3021-\u3029\u3031-\u3035\u3038-\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\uA674-\uA67B\uA67F-\uA697\uA69F-\uA6EF\uA717-\uA71F\uA722-\uA788\uA78B-\uA78E\uA790-\uA793\uA7A0-\uA7AA\uA7F8-\uA801\uA803-\uA805\uA807-\uA80A\uA80C-\uA827\uA840-\uA873\uA880-\uA8C3\uA8F2-\uA8F7\uA8FB\uA90A-\uA92A\uA930-\uA952\uA960-\uA97C\uA980-\uA9B2\uA9B4-\uA9BF\uA9CF\uAA00-\uAA36\uAA40-\uAA4D\uAA60-\uAA76\uAA7A\uAA80-\uAABE\uAAC0\uAAC2\uAADB-\uAADD\uAAE0-\uAAEF\uAAF2-\uAAF5\uAB01-\uAB06\uAB09-\uAB0E\uAB11-\uAB16\uAB20-\uAB26\uAB28-\uAB2E\uABC0-\uABEA\uAC00-\uD7A3\uD7B0-\uD7C6\uD7CB-\uD7FB\uF900-\uFA6D\uFA70-\uFAD9\uFB00-\uFB06\uFB13-\uFB17\uFB1D-\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]
matches a character that isn't a Unicode letter.
It depends on what engine you are working with. It also depends on how your Unicode characters are encoded — are they encoded as a single character, or as a character+mark combination?
You can try the following: \p{L} to target character+mark combinations, and \P{M}\p{M}*+ for the single character encodings.
So, finally I decided to write my own regex condition, because it seems like it there isn't any fast&simple way to do that in javascript.
I added here all unnecessary characters that came to my mind, could be in typical website and aren't needed to understand single word (I left ' character because in English it is quite important ;) ). If you want you can edit my answer and add your own ones.
[:;.,\?!-()~\/"|®##$%^&*+-]
JS:
text = text.replace(/[:;\.,\?!\-\(\)~\\\/"|®##$%^&*+-]/, "");
I want to do some basic String testing in Node.js. Assume I have a form where users enter their name and I wanna check if it's just rubbish or a real name.
Happily (or sadly for my check) I get users from all around the world which means that their names contain non-english characters, like ä ö ü ß é. I was used to use /[A-Za-z -]{2,}/ but this doesn't match names like "Jan Buschtöns".
Do I have to manually add every possible non-english but latin character to my RegEx to work? I don't want a 100+ characters long RegEx like /[A-Za-z -äöüÄÖÜßéÉèÈêÊ...]{2,}/.
Check http://www.regular-expressions.info/unicode.html and http://xregexp.com/plugins/
You would need to use \p{L} to match any letter character if you want to include unicode.
Speaking unicode, alternative of \w is [\p{L}\p{N}_] then.
Update: As of ES2018, JavaScript supports Unicode property escapes such as \p{L}, which matches anything that Unicode considers to be a letter. All modern browsers support this feature, so that's probably the way to go as long as you don't care about ancient browsers.
Old answer for pre-ES2018 browsers:
The answer depends on exactly what you want to do.
As you have noticed, [A-Za-z] only matches Latin letters without diacritics.
If you only care about German diacritics and the ß ligature, then you can just replace that part with [A-Za-zÄÖÜäöüß], e.g.:
/[A-Za-zÄÖÜäöüß -]{2,}/
But that probably isn’t what you want to do. You probably want to match Latin letters with any diacritics, not just those used in German. Or perhaps you want to match any letters from any alphabet, not just Latin.
Other regular expression dialects have character classes to help you with problems like this, but unfortunately JavaScript’s regular expression dialect has very few character classes and none of them help you here.
(In case you don’t know, a “character class” is an expression that matches any character that is a member of a predefined group of characters. For example, \w is a character class that matches any ASCII letter, or digit, or an underscore, and . is a character class that matches any character.)
This means that you have to list out every range of UTF-16 code units that corresponds to a character that you want to match.
A quick and dirty solution might be to say [a-zA-Z\u0080-\uFFFF], or in full:
/[A-Za-z\\u0080-\\uFFFF -]{2,}/
This will match any letter in the ASCII range, but will also match any character at all that is outside the ASCII range. This includes all possible alphabetic characters with or without diacritics in any script. However, it also includes a lot of characters that are not letters. Non-letters in the ASCII range are excluded, but non-letters outside the ASCII range are included.
The above might be good enough for your purposes, but if it isn’t then you will have to figure out which character ranges you need and specify those explicitly.
If you want just Latin letters, including those with less common diacritics like åēį, but excluding e.g. Chinese, Devanagari, and Cyrillic characters, you can use \p{Script=Latin} with the u flag. This feature is called Unicode property escapes, and was introduced in ES2018.
For example, /\p{Script=Latin}+/u will match a word that only contains Latin characters.
This is a JavaScript/node.js question, but I barely see any actual JavaScript code which shows how to do it. Its a bit trickier, because it requires the Unicode "u" flag:
// Result: '_ {_} [_]'
'ulike {adj} [ubøyelig]'.replace(/\p{L}+/gu, '_')
I know this question is old but I'm working on some NPL software and I needed to match all words in most latin-like languages and I did this with the following piece of code.
let myString = "Whatever you want here, ex. Bân-lâm-gú or bokmål or Português or Română or Slovenčina or Slovenščina";
let wordchar = 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̣̃Ɔ̣̈ɔ̣̈Ɔ̣̈̀ɔ̣̈̀Ɔ̣̈́ɔ̣̈́Ɔ̣̈̂ɔ̣̈̂Ɔ̣̈̌ɔ̣̈̌Ɔ̣̌ɔ̣̌Ɔ̤ɔ̤Ɔ̤̀ɔ̤̀Ɔ̤́ɔ̤́Ɔ̤̂ɔ̤̂Ɔ̤̈ɔ̤̈Ɔ̱ɔ̱Ɔ̱̀ɔ̱̀Ɔ̱́ɔ̱́Ɔ̱̂ɔ̱̂Ɔ̱̌ɔ̱̌Ɔ̱̃ɔ̱̃Ɔ̱̈ɔ̱̈Ɔ̱̈̀ɔ̱̈̀Ɔ̱̈́ɔ̱̈́Ɔ̧ɔ̧Ɔ̧̀ɔ̧̀Ɔ̧́ɔ̧́Ɔ̧̂ɔ̧̂Ɔ̧̌ɔ̧̌Ɔ̨ɔ̨Ɔ̨́ɔ̨́Ɔ̨̀ɔ̨̀Ɔ̨̂ɔ̨̂Ɔ̨̌ɔ̨̌Ɔ̨̄ɔ̨̄Ɔ̨̆ɔ̨̆Ɔ̨̈ɔ̨̈Ɔ̨̱ɔ̨̱Ɔ̰ɔ̰Ɔ̰̀ɔ̰̀Ɔ̰́ɔ̰́Ɔ̰̄ɔ̰̄P̀p̀ṔṕP̃p̃P̄p̄P̆p̆ṖṗP̈p̈P̋p̋P̑p̑P̓p̓P̕p̕P̔p̔P͑p͑P̱p̱P̣p̣P̤p̤P̬p̬ⱣᵽꝐꝑᵱᶈƤƥꝒꝓꝔꝕᴘ̇Q́q́Q̃q̃Q̄q̄Q̇q̇Q̈q̈Q̋q̋Q̓q̓Q̕q̕Q̧q̧Q̣q̣Q̣̇q̣̇Q̣̈q̣̈Q̱q̱ꝖꝗꝖ̃ꝗ̃ꝘꝙʠɊɋR̀r̀ŔŕR̂r̂R̃r̃R̄r̄R̆r̆ṘṙR̋r̋ŘřR̍r̍ȐȑȒȓR̓r̓R̕r̕ŖŗR̦r̦R̨r̨R̨̄r̨̄ꞦꞧR̭r̭ṞṟṚṛṚ̀ṛ̀Ṛ́ṛ́ṜṝṜ́ṝ́Ṝ̃ṝ̃Ṝ̆ṝ̆R̤r̤R̥r̥R̥̀r̥̀Ŕ̥ŕ̥R̥̂r̥̂R̥̃r̥̃R̥̄r̥̄R̥̄́r̥̄́R̥̄̆r̥̄̆Ř̥ř̥R̬r̬R̩r̩R̯r̯ɌɍᵲꭨɺᶉɻʵⱹɼⱤɽɾᵳɿʀ̇ʀ̣Ꝛ́ꝛ́Ꝛ̣ꝛ̣S̀s̀ŚśŚ̀ś̀ŚśṤṥŜŝS̃s̃S̄s̄S̄̒s̄̒S̆s̆ṠṡṠ̃ṡ̃S̈s̈S̋s̋ŠšŠ̀š̀Š́š́ṦṧŠ̓š̓S̑s̑S̒s̒S̓s̓S̕s̕ŞşȘșS̨s̨Š̨š̨ꞨꞩS̱s̱Ś̱ś̱S̮s̮ṢṣṢ́ṣ́Ṣ̄ṣ̄ṨṩṢ̌ṣ̌Ṣ̕ṣ̕Ṣ̱ṣ̱S̤s̤Š̤š̤S̥s̥Ś̥S̬s̬S̩s̩S̪s̪ꜱ̇ꜱ̣ſ́ẛſ̣ᵴᶊʂᶳꟅⱾȿẜẝᶋᶘʆT̀t̀T́t́T̃t̃T̄t̄T̆t̆T̆̀t̆̀ṪṫT̈ẗŤťT̑t̑T̓t̓T̕t̕T̔t̔T͑t͑ŢţȚțT̨t̨T̗t̗ṰṱT̰t̰ṮṯT̮t̮ṬṭṬ́ṭ́T̤t̤T̥t̥T̬t̬T̯t̯T̪t̪ƾŦŧȾⱦᵵƫᶵƬƭƮʈȶᴛ̇ᴛ̣ÙùÚúÛûŨũŨ̀ũ̀ṸṹŨ̂ũ̂Ũ̊ũ̊Ũ̌ũ̌Ũ̍ũ̍Ũ̎ũ̎ŪūŪ̀ū̀Ū́ū́Ū̂ū̂Ū̌ū̌Ū̃ū̃Ū̄ū̄Ū̆ū̆Ū̆́ū̆́ṺṻŪ̊ū̊ŬŭŬ̀ŭ̀Ŭ́ŭ́U̇u̇U̇́u̇́U̇̄u̇̄ÜüǛǜǗǘÜ̂ü̂Ü̃ü̃ǕǖǕ̆ǖ̆Ü̆ü̆ǙǚỦủŮůŮ́ů́Ů̃ů̃ŰűǓǔU̍u̍U̎u̎ȔȕȖȗU̓u̓U᷎u᷎ỦủƯưỨứỪừỮữƯ̆ư̆ỬửỰựU̧u̧Ú̧ú̧Ù̧ù̧Û̧û̧Ǔ̧ǔ̧ŲųŲ̀ų̀Ų́ų́Ų̂ų̂Ų̌ų̌Ų̄ų̄Ų̄́ų̄́Ų̄̀ų̄̀Ų̄̂ų̄̂Ų̄̌ų̄̌Ų̄̌ų̄̌Ų̈ų̈Ų̈́ų̈́Ų̈̀ų̈̀Ų̈̂ų̈̂Ų̈̌ų̈̌Ų̈̄ų̈̄Ų̋ų̋Ų̱ų̱Ų̱́ų̱́Ų̱̀ų̱̀ṶṷṴṵṴ̀ṵ̀Ṵ́ṵ́Ṵ̄ṵ̄Ṵ̈ṵ̈U̱u̱Ù̱ù̱Ú̱ú̱Û̱û̱Ũ̱ũ̱Ū̱ū̱Ū̱́ū̱́Ū̱̀ū̱̀Ū̱̂ū̱̂Ü̱ü̱Ǘ̱ǘ̱Ǜ̱ǜ̱Ü̱̂ü̱̂Ǚ̱ǚ̱Ǔ̱ǔ̱ỤụỤ̀ụ̀Ụ́ụ́Ụ̂ụ̂Ụ̃ụ̃Ụ̄ụ̄Ụ̈ụ̈Ụ̈̀ụ̈̀Ụ̈́ụ̈́Ụ̈̂ụ̈̂Ụ̈̌ụ̈̌Ụ̌ụ̌Ụ̍ụ̍ṲṳṲ̀ṳ̀Ṳ́ṳ́Ṳ̂ṳ̂Ṳ̈ṳ̈U̥u̥Ü̥ü̥U̯u̯Ũ̯ũ̯Ü̯ü̯U̩u̩U͔u͔Ũ͔ũ͔Ū͔ū͔ɄʉᶶɄ̀ʉ̀Ʉ́ʉ́Ʉ̂ʉ̂Ʉ̃ʉ̃Ʉ̄ʉ̄Ʉ̈ʉ̈Ʉ̌ʉ̌Ʉ̧ʉ̧Ʉ̰ʉ̰Ʉ̰́ʉ̰́Ʉ̱ʉ̱Ʉ̱́ʉ̱́Ʉ̱̀ʉ̱̀Ʉ̱̂ʉ̱̂Ʉ̱̈ʉ̱̈Ʉ̱̌ʉ̱̌Ʉ̥ʉ̥ꞸꞹᵾᶙꞾꞿʮʯɰᶭƱ̀ʊ̀Ʊ́ʊ́Ʊ̃ʊ̃ᵿV̀v̀V́v́V̂v̂ṼṽṼ̀ṽ̀Ṽ́ṽ́Ṽ̂ṽ̂Ṽ̌ṽ̌V̄v̄V̄̀v̄̀V̄́v̄́V̄̂v̄̂V̄̃v̄̃V̄̄v̄̄V̄̆v̄̆V̄̌v̄̌V̆v̆V̆́v̆́V̇v̇V̈v̈V̈̀v̈̀V̈́v̈́V̈̂v̈̂V̈̄v̈̄V̈̌v̈̌V̊v̊V̋v̋V̌v̌V̍v̍V̏v̏V̐v̐V̓v̓V̧v̧V̨v̨V̨̀v̨̀V̨́v̨́V̨̂v̨̂V̨̌v̨̌V̨̄v̨̄V̨̄́v̨̄́V̨̄̀v̨̄̀V̨̄̂v̨̄̂V̨̄̌v̨̄̌V̨̈v̨̈V̨̈́v̨̈́V̨̈̀v̨̈̀V̨̈̂v̨̈̂V̨̈̌v̨̈̌V̨̈̄v̨̈̄V̨̋v̨̋V̨̱v̨̱V̨̱́v̨̱́V̨̱̀v̨̱̀V̨̱̂v̨̱̂V̨̱̌v̨̱̌V̱v̱V̱̀v̱̀V̱́v̱́V̱̂v̱̂V̱̌v̱̌Ṽ̱ṽ̱V̱̈v̱̈V̱̈́v̱̈́V̱̈̀v̱̈̀V̱̈̂v̱̈̂V̱̈̌v̱̈̌ṾṿV̥v̥ꝞꝟᶌƲʋᶹƲ̀ʋ̀Ʋ́ʋ́Ʋ̂ʋ̂Ʋ̃ʋ̃Ʋ̈ʋ̈Ʋ̌ʋ̌ⱱⱴꝨ́ꝩ́Ꝩ̇ꝩ̇Ꝩ̣ꝩ̣ẀẁẂẃŴŵW̃w̃W̄w̄W̆w̆ẆẇẄẅW̊ẘW̋w̋W̌w̌W̍w̍W̓w̓W̱w̱ẈẉW̥w̥W̬w̬ⱲⱳX̀x̀X́x́X̂x̂X̃x̃X̄x̄X̆x̆X̆́x̆́ẊẋẌẍX̊x̊X̌x̌X̓x̓X̕x̕X̱x̱X̱̓x̱̓X̣x̣X̣̓x̣̓X̥x̥ᶍỲỳÝýŶŷỸỹȲȳȲ̀ȳ̀Ȳ́ȳ́Ȳ̃ȳ̃Ȳ̆ȳ̆Y̆y̆Y̆̀y̆̀Y̆́y̆́ẎẏẎ́ẏ́ŸÿŸ́ÿ́Y̊ẙY̋y̋Y̌y̌Y̍y̍Y̎y̎Y̐y̐Y̓y̓ỶỷY᷎y᷎Y̱y̱ỴỵỴ̣ỵ̣Y̥y̥Y̯y̯ɎɏƳƴỾỿZ̀z̀ŹźẐẑZ̃z̃Z̄z̄ŻżZ̈z̈Z̋z̋ŽžŽ́ž́Ž̏ž̏Z̑z̑Z̓z̓Z̕z̕Z̨z̨Z̗z̗ẔẕZ̮z̮ẒẓẒ́ẓ́Ẓ̌ẓ̌Ẓ̣ẓ̣Z̤z̤Z̥z̥ƵƶᵶᶎꟆȤȥʐᶼʑᶽⱿɀⱫⱬƷ́ʒ́Ʒ̇ʒ̇ǮǯǮ́ǯ́Ʒ̥ʒ̥ᶚƺʓÞ́þ́Þ̣þ̣ꝤꝥꝦꝧƻꜮꜯʡʢꜲꜳꜲ́ꜳ́Ꜳ̋ꜳ̋Ꜳ̇ꜳ̇Ꜳ̈ꜳ̈Ꜳ̣ꜳ̣ÆæᴭÆ̀æ̀ǼǽÆ̂æ̂Æ̌æ̌Æ̃æ̃Æ̃́æ̃́Æ̃̀æ̃̀Æ̃̂æ̃̂Æ̃̌æ̃̌ǢǣǢ́ǣ́Ǣ̂ǣ̂Ǣ̃ǣ̃Ǣ̆ǣ̆Æ̆æ̆Æ̇æ̇Æ̈æ̈Æ̈̀æ̈̀Æ̈́æ̈́Æ̈̂æ̈̂Æ̈̌æ̈̌Æ̊æ̊Æ̋æ̋Æ᷎æ᷎Æ̨æ̨Æ̨̀æ̨̀Ǽ̨ǽ̨Æ̨̂æ̨̂Æ̨̈æ̨̈Ǣ̨ǣ̨Æ̨̌æ̨̌Æ̨̱æ̨̱Æ̱æ̱Æ̱̃æ̱̃Æ̱̈æ̱̈Æ̣æ̣Æ͔̃æ͔̃ᴁᴂᵆꬱꜴꜵꜴ́ꜵ́Ꜵ̋ꜵ̋Ꜵ̣ꜵ̣ꜶꜷꜶ́ꜷ́Ꜷ̣ꜷ̣ꜸꜹꜺꜻꜸ́ꜹ́Ꜹ̋ꜹ̋Ꜹ̨ꜹ̨Ꜹ̣ꜹ̣Ꜻ́ꜻ́ꜼꜽꜼ̇ꜽ̇Ꜽ̣ꜽ̣ȸDZDzdzʣDŽDždžꭦʥʤffffifflfiflʩIJijꭡLJLjljỺỻʪʫɮNJNjnjŒœꟹŒ̀œ̀Œ́œ́Œ̂œ̂Œ̃œ̃Œ̄œ̄Œ̄́œ̄́Œ̄̃œ̄̃Œ̄̆œ̄̆Œ̋œ̋Œ̌œ̌Œ̨œ̨Œ̨̃œ̨̃Œ̣œ̣Œ̯œ̯ɶᴔꭂꭁꭢꝎꝏꝎ́ꝏ́Ꝏ̈ꝏ̈Ꝏ̋ꝏ̋Ꝏ̣ꝏ̣ꭃꭄȹẞßstſtʨᵺʦꭧʧꜨꜩꭀᵫꭐꭑꭣꝠꝡꝠ̈ꝡ̈Ꝡ̋ꝡ̋ꭠ";
let re = new RegExp(`(?<=[^${wordchar}]*)[${wordchar}]+(?=[${wordchar}]*)`, "g");
console.log(myString.match(re)); // ["Whatever", "you", "want", "here", "ex", "Bân-lâm-gú", "or", "bokmål", "or", "Português", "or", "Română", "or", "Slovenčina", "or", "Slovenščina"]
For russian and latin alphabet I've used
[\\wа-яА-Я]