Regex problem

[Nimyz]

Hi,

Is it possible to make a regular expression so that a certain character can only be used a 2 times throughout the whole string? It doesn't work with quantifiers because those ensure you that a certain character can't be used a certain amount of times in a pattern and not in a whole string.

Thanks in advance!

[Eranga]

something like this?

rerfrgrxgsthhgbdxdg

Yes, it's possible. In may ways you can validate that.

[Nimyz]

Really? How? Because I searched for 2 hours and I didn't find a solution to it :s
You don't want to give a hint perhaps? :-)

[JosAH]

Really? How? Because I searched for 2 hours and I didn't find a solution to it :s
You don't want to give a hint perhaps? :-)

^[^x]*x?[^x]*x?[^x]*$

This regexp recognizes at most two x's in a line. If you want exactly two x's remove the question marks.

kind regards,

Jos

[Eranga]

And also you can test/validate all the regular expressions on Regular Expression Library