[luatex] Missing catcode info when \tracingassigns positivie

[Hans Hagen]

On 12/4/2014 10:56 PM, Joseph Wright wrote:
> Hello all,
>
> With minimal example
>
>      {\tracingassigns=1\begingroup\catcode`\+=11\endgroup}
>      \bye
>
> pdfTeX writes the expected data to the log:
>
>      {changing \catcode43=12}
>      {into \catcode43=11}
>
> and with \tracingall or similar also reports restoring catcodes at the
> end of groups. That's not the case with LuaTeX: no catcode logging. Is
> this deliberate or a bug? If it's deliberate, what's the reasoning: it's
> tricky for doing a diff against  pdfTeX log.

luatex has catcode tables and it would add complexity; a more natural 
way in luatex is to define a catcode table, and switch catcodetables and 
these are reported in the log

Hans


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