I need to restrict users input only to alpha numeric chars.
If it was only in English It would be easy $[a-z]^/i
But I need to do it global, e.g. for every language. Is there a sequential Unicode range that include all "chars" ? If not, how can I do it?
p.s. I saw this answer but the answer was for python.
If you use Steve Levithan's XRegExp package with Unicode add-ons, then it's easy:
var regex = XRegExp('^\p{L}*$');
(Note that ^ is the start-of-string anchor, and $ is the end-of-string anchor, not vice versa)
In plain JavaScript, you need to construct the ranges yourself. I've taken the liberty to construct a plain-JavaScript regex from Steve's source code:
/^[u0041-u005Au0061-u007Au00AAu00B5u00BAu00C0-u00D6u00D8-u00F6u00F8-u02C1u02C6-u02D1u02E0-u02E4u02ECu02EEu0370-u0374u0376u0377u037A-u037Du0386u0388-u038Au038Cu038E-u03A1u03A3-u03F5u03F7-u0481u048A-u0527u0531-u0556u0559u0561-u0587u05D0-u05EAu05F0-u05F2u0620-u064Au066Eu066Fu0671-u06D3u06D5u06E5u06E6u06EEu06EFu06FA-u06FCu06FFu0710u0712-u072Fu074D-u07A5u07B1u07CA-u07EAu07F4u07F5u07FAu0800-u0815u081Au0824u0828u0840-u0858u08A0u08A2-u08ACu0904-u0939u093Du0950u0958-u0961u0971-u0977u0979-u097Fu0985-u098Cu098Fu0990u0993-u09A8u09AA-u09B0u09B2u09B6-u09B9u09BDu09CEu09DCu09DDu09DF-u09E1u09F0u09F1u0A05-u0A0Au0A0Fu0A10u0A13-u0A28u0A2A-u0A30u0A32u0A33u0A35u0A36u0A38u0A39u0A59-u0A5Cu0A5Eu0A72-u0A74u0A85-u0A8Du0A8F-u0A91u0A93-u0AA8u0AAA-u0AB0u0AB2u0AB3u0AB5-u0AB9u0ABDu0AD0u0AE0u0AE1u0B05-u0B0Cu0B0Fu0B10u0B13-u0B28u0B2A-u0B30u0B32u0B33u0B35-u0B39u0B3Du0B5Cu0B5Du0B5F-u0B61u0B71u0B83u0B85-u0B8Au0B8E-u0B90u0B92-u0B95u0B99u0B9Au0B9Cu0B9Eu0B9Fu0BA3u0BA4u0BA8-u0BAAu0BAE-u0BB9u0BD0u0C05-u0C0Cu0C0E-u0C10u0C12-u0C28u0C2A-u0C33u0C35-u0C39u0C3Du0C58u0C59u0C60u0C61u0C85-u0C8Cu0C8E-u0C90u0C92-u0CA8u0CAA-u0CB3u0CB5-u0CB9u0CBDu0CDEu0CE0u0CE1u0CF1u0CF2u0D05-u0D0Cu0D0E-u0D10u0D12-u0D3Au0D3Du0D4Eu0D60u0D61u0D7A-u0D7Fu0D85-u0D96u0D9A-u0DB1u0DB3-u0DBBu0DBDu0DC0-u0DC6u0E01-u0E30u0E32u0E33u0E40-u0E46u0E81u0E82u0E84u0E87u0E88u0E8Au0E8Du0E94-u0E97u0E99-u0E9Fu0EA1-u0EA3u0EA5u0EA7u0EAAu0EABu0EAD-u0EB0u0EB2u0EB3u0EBDu0EC0-u0EC4u0EC6u0EDC-u0EDFu0F00u0F40-u0F47u0F49-u0F6Cu0F88-u0F8Cu1000-u102Au103Fu1050-u1055u105A-u105Du1061u1065u1066u106E-u1070u1075-u1081u108Eu10A0-u10C5u10C7u10CDu10D0-u10FAu10FC-u1248u124A-u124Du1250-u1256u1258u125A-u125Du1260-u1288u128A-u128Du1290-u12B0u12B2-u12B5u12B8-u12BEu12C0u12C2-u12C5u12C8-u12D6u12D8-u1310u1312-u1315u1318-u135Au1380-u138Fu13A0-u13F4u1401-u166Cu166F-u167Fu1681-u169Au16A0-u16EAu1700-u170Cu170E-u1711u1720-u1731u1740-u1751u1760-u176Cu176E-u1770u1780-u17B3u17D7u17DCu1820-u1877u1880-u18A8u18AAu18B0-u18F5u1900-u191Cu1950-u196Du1970-u1974u1980-u19ABu19C1-u19C7u1A00-u1A16u1A20-u1A54u1AA7u1B05-u1B33u1B45-u1B4Bu1B83-u1BA0u1BAEu1BAFu1BBA-u1BE5u1C00-u1C23u1C4D-u1C4Fu1C5A-u1C7Du1CE9-u1CECu1CEE-u1CF1u1CF5u1CF6u1D00-u1DBFu1E00-u1F15u1F18-u1F1Du1F20-u1F45u1F48-u1F4Du1F50-u1F57u1F59u1F5Bu1F5Du1F5F-u1F7Du1F80-u1FB4u1FB6-u1FBCu1FBEu1FC2-u1FC4u1FC6-u1FCCu1FD0-u1FD3u1FD6-u1FDBu1FE0-u1FECu1FF2-u1FF4u1FF6-u1FFCu2071u207Fu2090-u209Cu2102u2107u210A-u2113u2115u2119-u211Du2124u2126u2128u212A-u212Du212F-u2139u213C-u213Fu2145-u2149u214Eu2183u2184u2C00-u2C2Eu2C30-u2C5Eu2C60-u2CE4u2CEB-u2CEEu2CF2u2CF3u2D00-u2D25u2D27u2D2Du2D30-u2D67u2D6Fu2D80-u2D96u2DA0-u2DA6u2DA8-u2DAEu2DB0-u2DB6u2DB8-u2DBEu2DC0-u2DC6u2DC8-u2DCEu2DD0-u2DD6u2DD8-u2DDEu2E2Fu3005u3006u3031-u3035u303Bu303Cu3041-u3096u309D-u309Fu30A1-u30FAu30FC-u30FFu3105-u312Du3131-u318Eu31A0-u31BAu31F0-u31FFu3400-u4DB5u4E00-u9FCCuA000-uA48CuA4D0-uA4FDuA500-uA60CuA610-uA61FuA62AuA62BuA640-uA66EuA67F-uA697uA6A0-uA6E5uA717-uA71FuA722-uA788uA78B-uA78EuA790-uA793uA7A0-uA7AAuA7F8-uA801uA803-uA805uA807-uA80AuA80C-uA822uA840-uA873uA882-uA8B3uA8F2-uA8F7uA8FBuA90A-uA925uA930-uA946uA960-uA97CuA984-uA9B2uA9CFuAA00-uAA28uAA40-uAA42uAA44-uAA4BuAA60-uAA76uAA7AuAA80-uAAAFuAAB1uAAB5uAAB6uAAB9-uAABDuAAC0uAAC2uAADB-uAADDuAAE0-uAAEAuAAF2-uAAF4uAB01-uAB06uAB09-uAB0EuAB11-uAB16uAB20-uAB26uAB28-uAB2EuABC0-uABE2uAC00-uD7A3uD7B0-uD7C6uD7CB-uD7FBuF900-uFA6DuFA70-uFAD9uFB00-uFB06uFB13-uFB17uFB1DuFB1F-uFB28uFB2A-uFB36uFB38-uFB3CuFB3EuFB40uFB41uFB43uFB44uFB46-uFBB1uFBD3-uFD3DuFD50-uFD8FuFD92-uFDC7uFDF0-uFDFBuFE70-uFE74uFE76-uFEFCuFF21-uFF3AuFF41-uFF5AuFF66-uFFBEuFFC2-uFFC7uFFCA-uFFCFuFFD2-uFFD7uFFDA-uFFDC]*$/
So you can use that instead, if you just need exactly that feature and not the entire XREgExp package.
