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Re: Multiline regex

by haoess (Curate)
on Oct 27, 2006 at 18:36 UTC ( #580989=note: print w/ replies, xml ) Need Help??

in reply to Multiline regex

If you want to do your matching about the whole string (containing multiple lines), then you want /s (also let the dot meta character match line breaks).

my ($body) = $line =~ /^body: \n (.*) \n attachment/xsi;

Or you are matching line by line, then you should have a look at the flip-flop operator in perlop.

# this is from perlop while (<>) { $in_header = 1 .. /^$/; $in_body = /^$/ .. eof; if ($in_header) { # ... } else { # in body # ... } }


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Re^2: Multiline regex
by chargrill (Parson) on Oct 27, 2006 at 18:56 UTC

    Also see Flipin good, or a total flop? for a good discussion of the flip-flop operator by Grandfather.

    s**lil*; $*=join'',sort split q**; s;.*;grr; &&s+(.(.)).+$2$1+; $; = qq-$_-;s,.*,ahc,;$,.=chop for split q,,,reverse;print for($,,$;,$*,$/)

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