Arthur Reutenauer wrote:
>> Yes, except that we need a more powerful version (almost like OTPs) if
>> we want to handle transcriptions properly. The vital point is that it
>> should operate on tokens, not on nodes.
> 
>   Yes, sure. OTP would work fine here, but I thought Mark IV had already
> something handy.

I played a bit, see attachment. Surely Hans will want to improve on this 
interface, so don't patch any of the core files just now.

Best wishes,
Taco