Re: Karl Berry: Re: Nick Dokos: texi2dvi egrep regexp

["Thomas S. Dye" <tsd@tsdye.com>]

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On Oct 9, 2010, at 9:05 PM, Carsten Dominik wrote:

>
> On Oct 9, 2010, at 7:25 PM, Thomas S. Dye wrote:
>
>> On Oct 9, 2010, at 6:42 AM, Nick Dokos wrote:
>>
>>> Carsten Dominik <carsten.dominik@gmail.com> wrote:
>>>
>>>
>>>> I am looking for a way out which will allow pdf compilation of Org
>>>> work out of the box, and still allow texi2dvi to be used where  
>>>> possible.
>>>>
>>>> I have so far come up with two possible work-arounds and would
>>>> like to hear if one of them makes sense:
>>>>
>>>> 1.  I could set the environment variable LC_ALL
>>>>  for the duration of the texi2dvi command to some value
>>>>  like C?  That should fix the egrep call, but could
>>>>  it have adverse effects on the pdflatex and bibtex runs or
>>>>  any other stuff used in texi2dvi?
>>>>
>>>
>>> Yes, at least theoretically. I don't think anybody has gone down
>>> the path of investigating these effects.
>>>
>>>> 2. On startup, I could use
>>>>
>>>> (if (= 0 (shell-command "echo foo | egrep \"[A-z]\""))
>>>>          ....
>>>>
>>>>
>>>> to check if there is a problem and in this case go for
>>>> manual pdflatex runs rather than using texi2dvi.  THis might work,
>>>> but it would be a bit unpredictable what ends up being used,
>>>> and with no setup in Org you could get different sets of commands
>>>> on different machines.
>>>>
>>>
>>> The trouble with this is that you are checking on egrep which will  
>>> give
>>> you a positive for egrep versions >= 2.6.x, but the fix to  
>>> texi2dvi might
>>> have made that irrelevant. How about
>>>
>>>   try
>>>      texi2dvi
>>>   except
>>>      do Seb's thrice-repeated pdflatex (or whatever) call
>>>
>>> After everybody has updated to the latest texinfo, the exception  
>>> code
>>> can be taken out.
>>>
>>> Alternatively, the texi2dvi method can be reverted: it was an idea  
>>> that
>>> was worth trying, but it has caused more harm than good at this  
>>> point
>>> - maybe it can be revisited in six months.
>>>
>>>> Any ather ideas?  Comments?
>>>>
>>>
>>
>> Perhaps org-latex-to-pdf-process should just run pdflatex twice (or  
>> three times) so that it most likely will work out of the box.   
>> IIUC, the user can set this variable to something else.
>
> I think this is the best idea.  I am going to set the default to 3  
> runs of pdflatex and provide a customization option to use texi2dvi.
> FOr now, I think the danger of this going wrong for unsuspecting  
> users is worse than the advantage of using texi2dvi.
>
> So if texi2dvi works on your system, just configure org-latex-to-pdf- 
> process.  If you use the customize interface to do the  
> customization, one of the options will be texi2dvi.
>
>> Some ready-to-use alternatives on Worg might be useful.  There, the  
>> pitfalls of using texi2dvi could be explained and those with  
>> systems where it works could find a recipe and make use of it.  The  
>> use of other latex make files might be illustrated there as well.
>
> Good idea.

I made a start in this direction on the LaTeX export tutorial, http://orgmode.org/worg/org-tutorials/org-latex-export.php#sec-8 
.  Information on other makefile setups and setups for other LaTeX  
engines, such as xelatex, could go here, as well.

All the best,
Tom

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