/usr/share/doc/libregexp-assemble-perl/examples/unquotemeta

#!/usr/bin/perl
#
# unquotemeta - how to fix up quotemeta
# 
# part of the Regexp::Assemble module
# David Landgren, copyright (c) 2005

use strict;

for my $ord( 0 .. 255 ) {
    my $ch = chr($ord);
    my $qm = quotemeta($ch);
    my $fix = fixup($qm);

    print "o=$ord c=$ch q=$qm f=$fix\n";
}

sub fixup {
    my $ch = shift;
    $ch =~ s/^\\([^-\w$()*+.\/?@\[\\\]^{|}])$/$1/;
    $ch;
}

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