正则表达式字符串不包含数字

Question

I'm trying to match a pattern in a url that does not include a number.

For example:

/painters/1-joe-bob/dashboard

I would only want to match urls that are the following:

/painters
/painters/string

If the url includes /painters/1-something then there should be no match.

I've been trying the following with no luck:

\/{1}(painters|contractors)\/?[^0-9][a-z]*

This still matches on /painters/ or /contractors/

Please advise.

Answer 1

You can try this regex. It uses a negative lookahead to disallow a match if a number comes after your second forward slash.

^\/(painters|contractors)\/(?![0-9])

Note that if you don't want number anywhere in the string you can use a negative lookahead right at the beginning.

^(?!.*[0-9])\/(painters|contractors)\/

This construct will disallow any string containing numbers.