regexkleene-star

Regex allow asterisk(*) only once time and in the end

I want to pass only the strings like this:

abc*
123*
abc 123*
abc-123abc*

I don't want to pass strings like those:

 - abc**
 - abc*123
 - *abc

The asterisk must be in the end and only once time.

With the regex like \* I get all asterisk, but i dont klnow how i specified. I am not so good in regex.

Solution

  • You can use

    ^[^*]*\*$

    Note it will also match a * string. If there must be at least two chars, replace the [^*]* part with [^*]+ to match one or more chars other than * before the final *.

    See the regex demo. Details: