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Re^5: perl 5.10 bug or not?

by Corion (Pope)
on Aug 20, 2013 at 15:58 UTC ( #1050203=note: print w/ replies, xml ) Need Help??


in reply to Re^4: perl 5.10 bug or not?
in thread perl 5.10 bug or not?

See perlre:

NOTE: Failed matches in Perl do not reset the match variables, which makes it easier to write code that tests for a series of more specific cases and remembers the best match.

$1 and $2 have their old values from a match somewhere else in your code.

Always guard use of $1 with an if statement to make sure it matched:

if( m/(.*) <(.*)>/ ) { print "Matched '$1' + '$2'"; } else { print "Did not match"; };


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