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Re: Named capture backreferences cannot be used in character classes?

by hdb (Prior)
on Sep 26, 2013 at 17:17 UTC ( #1055868=note: print w/ replies, xml ) Need Help??


in reply to Named capture backreferences cannot be used in character classes?

qr[(?:"[^"]+"|'[^']+')]

For this example, that is shorter than your regex.

UPDATE: and you can automatically generate this:

my @class = ( "'", '"' ); my $re = "[(?:".join("|",map{"${_}[^$_]+$_"}@class).")]";


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Re^2: Named capture backreferences cannot be used in character classes?
by BrowserUk (Pope) on Sep 26, 2013 at 17:44 UTC
    that is shorter than your regex.

    Except I need to retain knowledge of the quote type, so: qr[(?<FQ>")[^"]+"|(?<FQ>')[^']+']; but that's fine.


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