正则表达式匹配模式中的名称

Question

I've got a simple pattern LASTNAME, FIRSTNAME MI_IDNUMBER that I've matched with ^[a-zA-Z0-9, ]+_[a-zA-Z0-9]+ . The problem I'm running into now are records where the person has a last name with a hyphen like WALKER-REYES, ANNA T_AW12345 . I've tried incorporating something like (?=\\S*['-])([a-zA-Z'-]+) into it but this only identifies that LASTNAME in the string. What's the best way to string this all together? Not all names will have hyphens.

Answer 1

The way you built your regex is not optimal. You are matching every character, including space, until you find an underscore ( _ ) and then match the rest. Rather than doing that, you shouldn't match spaces and have every part of your string in different groups.

You can try using this regex, which support hyphens.

^(?: ?([a-zA-Z0-9\-]+),?){2} ([a-zA-Z0-9_]+)

You can test more cases at this regex101