[\.|\s] \s+ matches either a dot (or a pipe - thanks, LanX) or a space but then followed by at least one other space. Only one of your test strings matches this pattern.

Update: added bracketed clause to specify the pipe - see reply

🦛

In reply to Re: Regex, match one or other character class by hippo
in thread Regex, match one or other character class by Anonymous Monk

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