Re: FYI: Regex paper for UTC

On 22 Oct 2007, at 22:32, Philippe Verdy wrote:

>> Read all the stuff. There are different constructions.
>
> No, I've read the "stuff". You simply forget a formal definition of
> "length".

No. I left the "semantic length" definition to those that wants to  
deal with such. The text implies it may be desirable with such a  
semantic length definition, but I do not want myself get into the  
matter.

>> The main point is that the operations you seek are restrictions of
>> the language set operations.
>
> No.

Then you did not understand it.

> I read your text the way it is : ambiguous.

It is a theory that should be specialized.

   Hans Åberg