Regular expression to match French and German characters

Question

I am parsing the request parameters to find any vulnerable characters to prevent XSS threats. Our web application supports both French and German languages other than English. I am using the following regular expression to achieve this, but it fails to handle French and German

^[a-zA-Z0-9\r\n\\-=\\*\\.\\?;,+\\/:&_ %@#]*$

Any suggestions on this is highly appreciated

Answer 1

\\p{L}将匹配任何字母的unicode字符 。

Answer 2

Try [\\p{Latin}\\p{Punctuation}\\p{Math_Symbol}] or add more character classes. Have a look here for other unicode character classes.

Answer 3

I know this is an old question.

But hope it helps someone out there! you can try this regex:

([\ -\~\ -\ÿ\Ā-\ſ]+)

Basically it should match all the Latin and extended Latin characters, including numbers, feel free to remove the unicode characters as necessary. I would say that this would be the surest way of getting it right for all your scenarios.

References:

• http://unicode.org/charts/PDF/U0000.pdf
• http://unicode.org/charts/PDF/U0080.pdf
• http://unicode.org/charts/PDF/U0100.pdf