Re: [Orgmode] Re: Bibtex and latex export

[Eric S Fraga]

On Thu, 07 Oct 2010 16:11:32 -0400, Nick Dokos <address@hidden> wrote:
> 
> Eric S Fraga <address@hidden> wrote:
> 
> > >      echo /foo | egrep '^(/|[A-z]:/)'
> > > 
> > > do you get the bad range end error message? If so, then your egrep
> > > is indeed stricter than mine.
> > 
> > I do indeed:
> > 
> > : egrep: Invalid range end.
> > 
> > Very strange.
> > 
> > > > > LC_ALL=C texi2dvi ...
> > > > 
> > > > but this may have unexpected side effects?  I'm not sure if any of the
> > > > latex suite use the locale...
> > > 
> > > Yeah, perhaps...
> > 
> > Interestingly, it *is* a locale issue:
> > 
> > : $ echo /foo | LC_ALL=C egrep '^(/|[A-z]:/)'
> > : /foo
> > 
> 
> Yup: the egrep man page says
> 
> ,----
> | Within a bracket expression, a range expression consists of two
> | characters separated by a hyphen.  It matches any single character that
> | sorts between the two characters, inclusive, using the locale’s
> | collating sequence and character set.  For example, in the default C
> | locale, [a-d] is equivalent to [abcd].  Many locales sort characters in
> | dictionary order, and in these locales [a-d] is typically not equivalent
> | to [abcd]; it might be equivalent to [aBbCcDd], for example.  To obtain
> | the traditional interpretation of bracket expressions, you can use the C
> | locale by setting the LC_ALL environment variable to the value C.
> `----
> 
> So as Achim pointed out, unless texi2dvi explicitly specifies the locale
> for egrep, that regexp is busted. Even [A-Za-z] is busted in the absence
> of a locale: it would have to be something like [:alpha:], although I'm
> not sure what DOS allows/requires as a drive prefix. And even in the C
> locale, [A-z] allows non-letters which, I'm pretty sure, cannot be used
> as drive prefixes.
> 
> Nick
> 

Okay, I think this has convinced me to file a bug report.  I'll start
with Debian's system (reporting a bug against the texinfo package) and
hope it filters upstream appropriately.  texi2dvi definitely does not
specify the locale for egrep.  [:alpha:] is probably the right choice
from the little I know about DOS...

-- 
Eric S Fraga
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