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Subject:
From:
Bruno Le Floch <[log in to unmask]>
Reply To:
Mailing list for the LaTeX3 project <[log in to unmask]>
Date:
Thu, 20 Dec 2018 12:11:33 +0100
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On 12/20/18 08:35, Joseph Wright wrote:
> On 20/12/2018 05:56, Tisha Shusho wrote:
>> Hello List,
>>
>> In "The LaTeX3 Sources" document it says (on p. 296,
>> Released 2018-12-12):
>> "Older versions of expl3 divided up primitives by “source”:
>> that becomes very tricky with multiple parallel engine
>> developments, so has been dropped. To cover the transition,
>> we provide the older names here for a limited period (until
>> the end of019)."
>>
>> Does this mean one should avoid using functions such as
>> "\etex_iffontchar:D"?
>> If yes, are there any alternative to such commands?
>>
>> Furthermore, in "The expl3 package and LaTeX3 programming"
>> document it says (on page 7, Released 2018-12-12):
>> "D This means: Do not use. This special case is used for TEX
>> primitives. Programmers outside the kernel team should not use
>> these functions!"
>>
>> Again, which function should a programmer who is not a member
>> of kernel team use instead of "\etex_iffontchar:D"?
>>
>> Thanks,
>> Tisha
> 
> Hello,
> 
> We moved all of the primitives to \tex_...:D a while ago: the engine
> history is not really helpful in dealing with them.
> 
> For cases where you *have* to use a :D command, we recommend making a
> private copy
> 
>     \cs_neq_eq:NN \__module_fontchar:w \tex_fontchar:D
> 
> then using that.
> 
> Joseph

To avoid possible confusion, here is the command with the typo
corrected, and of course replace "module" by the name of your module.

    \cs_set_eq:NN \__module_fontchar:w \tex_fontchar:D

Best,
Bruno

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