The "old" way would be to localise the glob.

open (IN, "file1") or die("can't blah blah");
while (<IN>) {
    print;
    print slurp();
}
sub slurp {
    local *IN;
    my $slurp = do { local $/ = undef; open IN, "file2"; <IN>};
    return $slurp;
}

[download]

But these days you can use lexical filehandles.

open (my $in, "file1") or die("can't blah blah");
while (<$in>) {
    print;
    print slurp();
}
sub slurp {
    my $slurp = do { local $/ = undef; open my $in, "file2"; <$in>};
    return $slurp;
}

[download]

Or, as you point out, you can use FileHandle or IO::File.

--
<http://dave.org.uk>

"The first rule of Perl club is you do not talk about Perl club."
-- Chip Salzenberg

In reply to Re: Filehandles, scope and warnings. by davorg
in thread Filehandles, scope and warnings. by reasonablekeith

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