From mboxrd@z Thu Jan  1 00:00:00 1970
From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
Subject: Re: Multiple underscores crash org latex export; other exporters
 survive
Date: Wed, 07 Dec 2016 00:50:32 +0100
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In-Reply-To: <e7dcc945-e1f2-4d57-719f-e9b3f1afd99e@gmail.com> (Scott Randby's
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To: Scott Randby <srandby@gmail.com>
Cc: "Emacs-orgmode@gnu.org" <emacs-orgmode@gnu.org>, Scott Otterson <scotto@sharpleaf.org>

Hello,

Scott Randby <srandby@gmail.com> writes:

> I don't think you can blame Org for the crashes you've experienced. Org
> exports the string "a_variable_deleteThisAndItWorks" to
> "a\(_{\text{variable}}_{\text{deleteThisAndItWorks}}\)" which is not a
> valid LaTeX expression. This invalid output is not the fault of Org, it
> is the fault of the input string. Since there are different ways of
> interpreting "a_variable_deleteThisAndItWorks," you have to tell Org
> which interpretation you want it to make when you export to LaTeX. This
> means additional markup of the string is required.
>
> That the exported LaTeX file crashes your installation of pdfTeX (or
> whatever TeX engine you use) when you process it is not the fault of
> Org. The exported LaTeX file contains an invalid LaTeX expression that
> came from a ambiguous string, so pdfTeX shows an error when processing
> the LaTeX file. Using additional markup of the string so that Org
> exports it as a valid LaTeX expression is the solution to the problem.

Even though the OP used an ambiguous string, I don't think Org should
generate invalid LaTeX.

I fixed it in maint. Basically, a_b_c is translated as a\(_b\)\(_c\).

Regards,

-- 
Nicolas Goaziou