This should be more obvious, but that would be virtually impossible to do. If you said "match 13,99" what pattern exactly are you matching?
5 characters of any sort?
2 characters of any sort + any punctuation mark + 2 characters of any sort?
2 numbers + comma + 2 numbers?
Any number of numbers + (period or comma or semicolon) + any number of characters?
There are simply too many patterns that could match that output, and without human intervention, no software would know which one satisfies your needs. But it's a lovely idea.
