qr/b/ creates a regular expression reference, which Dumper prints as qr/(?-xism:b)/, whereas 'qr/b/' is a plain string.
If you want to read a regular expression reference from a file, you have to either write it with Storable (which results in a binary file you cannot edit by hand) or Data::Dump it (so that you can eval it back, with the obvious security implications) or do something like gaal is suggesting above.
In reply to Re: Reading from file
by Thilosophy
in thread Reading from file
by wilbur
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