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by kbob 1480 days ago
Do sources still exist for Perl 4 and earlier?

I decided to go looking for when Perl got verbose regex. The oldest thing I can find on perldoc.perl.org or cpan.org is 5.004 (1997), where they were an existing feature.

EDIT: Found 4.036 sources (1993). A quick scan of the man page (troff source!) does not find verbose regular expressions. So it looks like they were introduced very early in the Perl 5 series.

https://www.cpan.org/src/unsupported/4.036/