I checked every character of the printable line last night. The only hidden thing is that it ends with a chr(10), but I just ran it without the chr(10), and the same thing happened! Does it happen to anyone else? Here is the complete code that I just tried:

#!/usr/bin/perl
######################################################################
+########
print "Cache-Control: no-cache, must-revalidate\n";
print "Pragma: no-cache\n";

print "Content-type: text/html\n\n";

@line = '<a href = "http://polisource.com">12345(2345678901234)nopqrst
+</a>';

### test
print "1 @line";
$1="";
print "2 @line";
exit;
### end test
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