[luatex] \write16 (or 128) loosing tokens after null character

[Hans Hagen]

On 11/20/2015 9:54 AM, jfbu wrote:
>
> Le 19 nov. 2015 à 23:44, jfbu <jfbu at free.fr> a écrit :
>
>> Hi,
>>
>> this might be the same issue than one with \scantokens
>> which was discussed some time ago on this list (lost the reference)
>
> this was
>
> http://tug.org/pipermail/luatex/2015-March/005138.html
> [luatex] behavior of \write in LuaTeX differs from the one of	PdfTeX/XeTeX
>
> which referenced some other threads,
>
> I tried also running pdftex with -8bit switch which
> was mentioned by Hans in the previous thread and this gives
>
> This is pdfTeX, Version 3.14159265-2.6-1.40.16 (TeX Live 2015) (preloaded format=pdftex 2015.10.14)  20 NOV 2015 09:50
> entering extended mode
>   restricted \write18 enabled.
>   %&-line parsing enabled.
> **testlualog.tex
> (./testlualog.tex macro:->\romannumeral ` foo bar foo bar foo bar
> macro:->\romannumeral ` foo bar foo bar foo bar
>   )
>
>   (contains two null characters)
>
> The log with luatex is:
>
> This is LuaTeX, Version beta-0.80.0 (TeX Live 2015) (rev 5238)  (format=luatex 2015.10.14)  20 NOV 2015 09:53
>   restricted \write18 enabled.
> **\input testlualog.tex
> (./testlualog.tex macro:->\romannumeral ` foo bar foo bar foo bar
> macro:->\romannumeral `
> )
>
> only one null character in \message output
>
> in \write output the null character is not there
> (and the other things are gone)
> best,

well, because we're in a mixed tex/lua environment 0's can  always be 
sort of an issue .. just try to avoid them .. the times that we needed 
those slots for fonts are gone (in fact: avoid chars < 32)

Hans

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