[texworks] Error with Lua version

[Alain Delmotte]

Hi Stefan,

Stefan Löffler a écrit :
> Hi,
>
> Alain Delmotte schrieb:
>   
>> When Lua is implemented there is a problem, under Windows, with the
>> "Typeset" button of the tools bar.
>>
>> When one start typesetting, the green button (with a right pointing
>> triangle) turns red (with a cross).
>> If there is an error, clicking on the red button crashes TeXworks,
>> which should halted by the terminate procedure of Windows. (you know,
>> the one offering later the possibility to report to MicroSoft)
>>     
>
> Curious, I just tried this and it didn't crash on my system.
> Just for the record: I'm using Tw r333 (compiled myself) on Windows XP
> with MikTeX 2.7 (but it didn't crash with the version I downloaded from
> your page, either).
>
> I did notice, however, that the log said "Process crashed" after I hit
> the abort (i.e. red cross) button. I'd have to look into how this is
> done, but I'd say it would be a lot better if it said "Process aborted
> by user" or even "Typesetting aborted by user".
>
> <technical speculations>
> My guess is that the process is killed before the pipe to the output is
> released. This could in principle cause crashes, especially if one tries
> to access the output after the process has been terminated. If this is
> true, the code should be changed to release the pipe first, then the
> process should be terminated, and then a string saying that the user
> aborted the process could be attached to the log.
> </technical speculations>
>
>   
>> This doesn't happen with the base TeXworks or the one with the print
>> capability.
>>     
>
> This would indicate that the problem lies in the post processing of the
> log in accordance with my technical speculations above.
>
> Does this happen as well if you remove the LaTeX log output parser (e.g.
> by moving the file to a different folder or by changing its extension to
> .txt or something)?
>   
No it doesn't crash.
So your tech specifications seem to answer the problem: the sequence 
should be pipe, process, message.

Do not forget that I modified the log output parser  a little bit(!!)!

Alain