Peamasii,
I am terrible at regexes myself, but it seems like an anchored character class with an ungreedy quantifier would do the trick. 
/^[\d?]?$/

[download]

Cheers - L~R

After reading dragonchild's reply, I have to agree - reading perldoc perlre, checking the Categorized Questions and Answers, and Super Searching are always good places to start. It is like the saying goes Give a man a fire and he stays warm for the day, set a man on fire and he is warm for the rest of his life give a man a fish and he is full for a day, teach a man to fish and he never goes hungry.

In reply to Re: need help with a Regex by Limbic~Region
in thread need help with a Regex by Peamasii

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