Is there a number editing textarea widget?

As the title says, I’m wondering if there is a textarea widget that is enhanced to support number editing or regular expression? Or should I inherit the general textarea widget and expand the function for myself.

I would do it in another manner. I would call the alpha keyboard for the alpha text box and the numeric keyboard for the numeric textbox.

Good Idea & thanks. But we still need to check that people would not enter illeagal numbers, even only use numeric keyboard, so some type of check is needded anyway.

Then I would use the spinbox