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Run this 

perl -Mre=debug -le " 1 while q{234} =~ /\d/g "

[download]

Compare with one or two pages from this infinite loop 

perl -Mre=debug -le " 1 while q{234} =~ /\d/ "

[download]

You should notice that without g in m//g the pos-ition doesn't advance, you're always matching against 2, and its always true, and it never ends, cause 2 is always \d

Regexp::Assemble hangs with a certain case

A regex produced by Regexp::Assemble is not Regexp::Assemble , Regexp::Assemble is not hanging -- but you're not even using Regexp::Assemble to assemble a regex, so its got nothing to do with it

In reply to Re: Regexp::Assemble hangs with a certain case by Anonymous Monk
in thread Regexp::Assemble hangs with a certain case by kimmel

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