Regex for Umlaut

Question

I am using JS Animated Contact Form with this line of validation regex:

rx:{\".name\":{rx:/^[a-zA-Z\'][a-zA-Z-\' ]+[a-zA-Z\']?$/,target:\'input\'}, other fie         


        

Answer 1

I came up with a combination of different ranges:

[A-Za-zÀ-ž\u0370-\u03FF\u0400-\u04FF]

• Diacritical Marks: [À-ž]
• Greek and Coptic: [\u0370-\u03FF]
• Cyrillic: [\u0400-\u04FF]

But I see that it misses some letters of @SambitD proposal, refer to: https://rubular.com/r/2g00QJK4rBS8Y4

Answer 2

The problem with the \uXXXX approach is, that it is not supported by all Regex flavours. For example Visual C++ does not support it. There, you would need to enumerate the actual letters.

I recommend to use a tool like https://www.regexbuddy.com/ that knows as many flavors as possible.

Answer 3

I used

A-Za-z-ÁÀȦÂÄǞǍĂĀÃÅǺǼǢĆĊĈČĎḌḐḒÉÈĖÊËĚĔĒẼE̊ẸǴĠĜǦĞG̃ĢĤḤáàȧâäǟǎăāãåǻǽǣćċĉčďḍḑḓéèėêëěĕēẽe̊ẹǵġĝǧğg̃ģĥḥÍÌİÎÏǏĬĪĨỊĴĶǨĹĻĽĿḼM̂M̄ʼNŃN̂ṄN̈ŇN̄ÑŅṊÓÒȮȰÔÖȪǑŎŌÕȬŐỌǾƠíìiîïǐĭīĩịĵķǩĺļľŀḽm̂m̄ʼnńn̂ṅn̈ňn̄ñņṋóòôȯȱöȫǒŏōõȭőọǿơP̄ŔŘŖŚŜṠŠȘṢŤȚṬṰÚÙÛÜǓŬŪŨŰŮỤẂẀŴẄÝỲŶŸȲỸŹŻŽẒǮp̄ŕřŗśŝṡšşṣťțṭṱúùûüǔŭūũűůụẃẁŵẅýỳŷÿȳỹźżžẓǯßœŒçÇ

which supports almost all the chars in Europe. Source of truth

Answer 4

You should use in your regex unicode codes for characters, like \u0080. For German language, I found following table:

Zeichen     Unicode
------------------------------
Ä, ä        \u00c4, \u00e4
Ö, ö        \u00d6, \u00f6
Ü, ü        \u00dc, \u00fc
ß           \u00df

(source http://javawiki.sowas.com/doku.php?id=java:unicode)

Answer 5

Try using this:

/^[\u00C0-\u017Fa-zA-Z'][\u00C0-\u017Fa-zA-Z-' ]+[\u00C0-\u017Fa-zA-Z']?$/

I have added the unicode range \u00C0-\u017F to the start of each of the square bracket groups.

Given that /^[\u00C0-\u017FA-Za-z]+$/.test("aeiouçéüß") returns true, I expect it should work.

Credit to https://stackoverflow.com/a/11550799/940252.