Re^3: Why do I need parentheses here?

Yes. ?PAT? and $_ =~ ?PAT? are equivalent, just like /PAT/ and $_ =~ /PAT/ are. (Aforementioned split is exceptional since it treats /PAT/ as qr/PAT/ or similar.)

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Re^4: Why do I need parentheses here? by rovf (Priest) on May 27, 2009 at 14:57 UTC
Is there any difference between `/PAT/` and `qr/PAT/` ??? I thought this is always the same. -- Ronald Fischer <ynnor@mm.st>	[reply] [d/l] [select]
Re^5: Why do I need parentheses here? by ikegami (Patriarch) on May 27, 2009 at 15:01 UTC
`/PAT/` (`m/PAT/`) is the match operator. `qr/PAT/` compiles the pattern and returns the pattern without doing any matching. perlop `$ perl -le'$_="abc"; print /(.)/;' a $ perl -le'$_="abc"; print qr/(.)/;' (?-xism:(.))` [download]	[reply] [d/l] [select]
Re^6: Why do I need parentheses here? by rovf (Priest) on May 27, 2009 at 15:08 UTC
Ah, thanks a lot. I confused this with Ruby.... I should not mix languages too much ;-) -- Ronald Fischer <ynnor@mm.st>	[reply] [d/l]