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