Regex Find firstname based on-CodePudding

Need some help with the firstname match based on search "Name" below the first line. Below 3 situations that can occur:

Mrs. Joanne Doe
Name detail

Jenni Doe
Name detail

Mr. John Doe
Name detail

This will solve the 2nd situation (^\w )(?=.*\nName). I need 1 regex that will cope with all the 3 scenario's.

Thanks!

CodePudding user response：

SOLVED By Wiktor with:

^(?:M(?:rs?|(?:is)?s)\.?\s*)?\K\w (?=.*\nName)

CodePudding user response：

You can use

^(?:M(?:rs?|(?:is)?s)\.?\s*)?\K\w (?=.*\RName)

See the regex demo. Details:

^ - start of string
(?:M(?:rs?|(?:is)?s)\.?\s*)? - an optional occurrence of Mr, Mrs, Miss or Ms optionally followed with a . char and then zero or more whitespaces
\K - omit all text matched so far
\w - one or more letters, digits or underscores
(?=.*\RName) - a positive lookahead that requires any zero or more chars other than line break chars as many as possible, a line break sequence and then Name string immediately to the right of the current position.