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Date: Wed, 5 Dec 2007 09:30:52 +0100
Reply-To: Mailing list for the LaTeX3 project <[log in to unmask]>
From: Morten Høgholm <[log in to unmask]>
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On Sun, 02 Dec 2007 14:35:33 +0100, Andreas Matthias wrote:

Hi Andreas,

> Recently, the names of some control sequences were changed in svn.
> Maybe this is a good time to think about other names as well.
> * \int_set:Nn uses \numexpr to scan its second argument. Shouldn't
>   it rather be called \int_set:Nx?

True, the base form of the function \int_set: does do this x expansion.  
However, these assignment functions are a bit different from other types  
because there is no difference between \int_set:Nn and \int_set:Nx and so  
perhaps it is better to stick to the base form definition using Nn rather  
than Nx as that would imply there is a base form too.

For things such as \int_compare:nNnTF, having a name with xNxTF argument  
spec might imply the function is not expandable but it is.

> * \quark_if_no_value gives the impression that this is a test
>   `if a quark has no value'. But actually it is a test `if a token
>   list is equal to \q_no_value'. Wouldn't \tlist_if_q_no_value be
>   a better name?
>   Same for: \quark_if_nil --> \tlist_if_q_nil

The quark functions need a bit of clarification. Just the other day I  
uploaded a new version where there is one special quark used for tail  
recursions and functions testing for just this quark.

What is more or less implemented now for \q_nil etc. is that the test is  
essentially a \tlist test so your question makes a lot of sense. However,  
the original concept was not this but rather that one should just check if  
a token list begins with such a quark because it should happen under  
controlled circumstances. The new tail recursion tests is a step in that  
direction so that there is a well-defined interface for using the quark.  
So far l3tlp and l3clist have been updated to use it, others will follow.