Yup, thought of that :) - but then when I have problems later on (as I always do), the first things the monks would say is use -w (well, after use strict).

Looking at the documentation for the module, it says of the add method:

$obj->add( $key, $value );
Adds a new key/value pair to the hash. $key can be a Regexp or a string (which is compiled into a Regexp).
If $key is already defined, the value will be changed. If $key matches an existing key (but is not the same), a warning will be shown if warnings are enabled.

and I suspect that the final paragraph is coming into play, but I can't see why.

In reply to Re: Re: Problem with Tie::RegexpHash by sch
in thread Problem with Tie::RegexpHash by sch

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