[luatex] behavior of \write in LuaTeX differs from the one of PdfTeX/XeTeX

[jfbu]

le 25/03/2015 14:06 selon Hans Hagen:
> On 3/25/2015 1:37 PM, jfbu wrote:
>> le 25/03/2015 11:12 selon Hans Hagen:
>>> On 3/24/2015 7:36 PM, jfbu wrote:
>>>
>>>> This is XeTeX, Version 3.14159265-2.6-0.99991 (TeX Live 2014) (preloaded format=xetex 2014.7.10)  24 MAR 2015 19:25
>>>>
>>>> This is pdfTeX, Version 3.14159265-2.6-1.40.15 (TeX Live 2014) (preloaded format=pdfetex 2015.1.21)  24 MAR 2015 19:35
>>>>
>>>> This is LuaTeX, Version beta-0.79.1 (TeX Live 2014) (rev 4971)  (format=luatex 2014.7.10)  24 MAR 2015 19:36
>>>
>>> btw, you should run pdftex/xetex in -8bit mode in order to compare
>>
>> I didn't know about these options, thanks
>>
>> regarding:
>>
>>
>>> (btw, in general you cannot expect luatex to behave exactly like pdftex and xetex esp when it comes to file io and logging)
>>
>> could there be a -7bit option to luatex for matters of \write ?
> 
> no, that will not happen .. luatex us 8 bit and utf and if you want something else you can use the callbacks and or luatex for implementing whatever file thingies you like
> 
>> else packages from the pre-scantokens pre-detokenize area which
>> rely on external file output+input might be broken in certain
>> circumstances (I dont' have anything specific in mind, this is
>> pure rhetoric)
> 
> adapt the packages to modern times
> 
>> and about the \scantokens issue
>>
>> the tracker
>>
>> http://tracker.luatex.org/view.php?id=733
>>
>> displays the topic as open
>>
>> is there anything in the works ?
> 
> not yet (certainly not around the current code freeze for tl 2015)
> 
> Hans

ok thanks for all

Jean-Francois