my $tag = q{<test-result value="FAIL"/>};

if ($str =~ m/\Q$tag\E/) {
    print "«$str» contains «$tag»\n";
}

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If this is not what you want, please elaborate. Also don't use regexes to match XML, use a module for parsing instead (perhaps XML::LibXML or XML::Twig).

In reply to Re: matching non-word character in perl by moritz
in thread matching non-word character in perl by anand_perl

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