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Date: Sat, 12 Sep 2015 17:26:51 +0200
From: magnum <>
Subject: Re: mask + external as filter, generic combinable filters

On 2015-09-12 17:15, Frank Dittrich wrote:
> On 09/12/2015 05:10 PM, magnum wrote:
>> Yes, currently when combining mask mode with external, external is the
>> generator and mask mode is an amplifier (eg. word -> word1, word2, word3).
>> We should probably support the other way round too, eg. mask generator
>> and external filter. But what would the option syntax be for selecting
>> behavior? If nothing else, an external mode that lacks generate(), like
>> in your case, should automagically select mask mode as the generator.
> Yes, I think if external mode lacks a generate() function, mask mode is
> the generator.
> If external mode has a generate() function, the mask must contain either
> "?w" or "?W".

Oh right, that is a selection criteria already. So we should definitely 
be a generator (and support an external filter) any time we don't have 
\w or \W. And we can only be an amplifier when we have them. We need to 
fix this.

> For --regex it would be similar. If the external mode has a generate()
> function, it is the generator, and --regex must contain "\0".

Not quite: Some external modes support being generator OR filter. So the 
criteria is \0 only: If there is a \0, regex is the filter/amplifier and 
otherwise it must be the generator.

BTW are we still supporting latest librexgen or did the API change again?


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