The following code produces this error:

Unmatched ( in regex; marked by <-- HERE in m/Hi( <-- HERE / at match_problem.pl line 14

But only if $str1 or $str2 have an upper case letter! No problem if both are lower case. Also, no problem with punctuation marks other than parentheses.

Very strange; any insight will be highly appreciated.

I'm only moderately knowledgeable; would appreciate as simply-stated an answer is possible.

Here is the code: 

$str1 = "Hi(";
$str2 = "hi";
if ($str2 =~ $str1)
{
    print "Match: Yes\n";
}
else
{
    print "Match: No\n";
}

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In reply to Possible Match Problem by Anonymous Monk

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