I've pieced together the following regular expression (Corrected version ((\-*[\d\.]){3}))but it will only match 27.9 and then stop. Using only a regular expression how would you match just the first ...

If I have a field that is valid if either it is blank or matches a regular expression (For example: \d{10}), how would I write a regular expression that would match any valid input?<BR><BR>(In other ...