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#1: FAQ 9.15 How do I parse a mail header?

Posted on 2008-04-15 21:03:02 by PerlFAQ Server

This is an excerpt from the latest version perlfaq9.pod, which
comes with the standard Perl distribution. These postings aim to
reduce the number of repeated questions as well as allow the community
to review and update the answers. The latest version of the complete
perlfaq is at .

------------------------------------------------------------ --------

9.15: How do I parse a mail header?

For a quick-and-dirty solution, try this solution derived from "split"
in perlfunc:

$/ = '';
$header = <MSG>;
$header =~ s/\n\s+/ /g; # merge continuation lines
%head = ( UNIX_FROM_LINE, split /^([-\w]+):\s*/m, $header );

That solution doesn't do well if, for example, you're trying to maintain
all the Received lines. A more complete approach is to use the
Mail::Header module from CPAN (part of the MailTools package).

------------------------------------------------------------ --------

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