[pdftex] \tracinglostchars

[jfbu]

Le 15 févr. 2021 à 14:37, jfbu <jfbu at free.fr> a écrit :

> Hi,
> Not sure if right list.
> Besides, I am sure this must have been discussed.
> 
> Anyway, \tracinglostchars1 is default in LaTeX (ltplain.dtx),
> but not extremely useful because the information goes only
> to log file and user is not warned.
> 
> With \tracinglostchars2, also console output gets the info.
> But console output is often big. There is no warning at end.
> 
> If I execute etex on 
> 
> \begingroup
> \bye
> 
> 
> (e)TeX gives very visible warning
> 
> (\end occurred inside a group at level 1)
> 
> ### semi simple group (level 1) (\begingroup)
> ### bottom level
> 

the above two lines from etex (pdftex binary on texlive)
Knuth TeX has only the (\end occurred inside a group at level 1)
I should have checked before

> at end of run.
> 
> But a missing glyph in a PDF file is often at least
> as much relevant as the above problem from the end
> user point of view
> 
> Could \tracinglostchars1 by default also print at end of run
> to stdout
> something such as
> 
> There were missing characters. Check the log file.
> 
> And of course also \tracinglostchars2
> 
> Or let \tracinglostchars3 do that.
> 
> I would then suggest macro formats adopt this
> by default.
> 
> 
> Best,
> 
> Jean-François
>