We need to allow the German umlauts for the user to enter as part of user name. While we add
^[A-Za-z0-9äöüÄÖÜß-.]+(?:[._-][A-Za-z0-9äöüÄÖÜß-.]+)*$
This is not working as expected and we just get an error as "Facing Technical difficulty"
3 Answers
I think that your regular expression is not correct. "-" sign in regular expressions is used to match any from range of characters. e.g.: A-Z or a-z. You have range that is not closed: ß- I removed "-" sign and it started to work for me.
^[A-Za-z0-9äöüÄÖÜß.]+(?:[._-][A-Za-z0-9äöüÄÖÜß.]+)*$
Update following comment of @Marek Musielak. It seems that under -. @PVM have meant either . or - characters. In regular expression these characters should be escaped:
^[A-Za-z0-9äöüÄÖÜß\-\.]+(?:[._-][A-Za-z0-9äöüÄÖÜß\-\.]+)*$
-
So there should be
\`character before-, right?-should not be removed?– Marek Musielak ♦Nov 14, 2017 at 10:57 -
Yes, if @PVM wants to use '-' character then it should be escaped "\-". I was not sure, why this symbol was added, but it definitely causes issue– AntonNov 14, 2017 at 11:31
/^[ A-Za-z\-_.\u00C0-\u00D6\u00D8-\u00F6\u00F8-\u00FF.~\\-]*$/
Please try to use this one.
Try this one.
^[ A-Za-z\u00C0-\u017F.~\\-]*$
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1Can you add some more details about what you fixed and how it works? Apr 5, 2019 at 13:32
^[A-Za-z0-9äöüÄÖÜß-.]+...?