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From: Nicolas Goaziou <mail@nicolasgoaziou.fr>
To: heroxbd@gentoo.org
Cc: emacs-orgmode@gnu.org
Subject: Re: [PATCH] curly nested latex fragments
Date: Sun, 29 Jun 2014 15:53:47 +0200	[thread overview]
Message-ID: <87simng6tw.fsf@nicolasgoaziou.fr> (raw)
In-Reply-To: <86pphshr82.fsf_-_@moguhome00.in.awa.tohoku.ac.jp> (heroxbd@gentoo.org's message of "Sun, 29 Jun 2014 20:47:57 +0900")

Hello,

heroxbd@gentoo.org writes:

> Nesting braces is already implemented in the classic org-latex.el[1],
> and is forward ported into org-element.el.

Thanks for your patch.

I think you are misunderstanding something. I didn't port this
limitation in Org 8. AFAIK it has been there for a long time. See
`org-inside-latex-macro-p' for example.

The main problem with Org < 8 is that every exporter implemented its own
parser for the Org buffer. As you can see, "org-latex.el" was in
contradiction with "org.el".

> Would you like to take a look at the attached patch? Thanks.

I do not mind extending syntax for LaTeX macros a bit if it helps users,
but first, I would like a clear definition of what subset of macros
should be supported in Org.

See, for example,

  http://orgmode.org/worg/dev/org-syntax.html#Entities_and_LaTeX_Fragments

Also, I do not want to add constructs like

  "\\(?:<[^<>\n]*>\\)*"

in this definition, as this isn't supported even in
`TeX-find-macro-end-helper' (from auctex), which I consider as
a reference for macro syntax (i.e. we shouldn't support more than what
is supports).

Eventually, please note that this imply to change not only
"org-element.el", but also "org.el" and possibly other parts where the
limitation is encoded. But first, we need to agree on what exactly
a valid a LaTeX macro is in Org.

> If \ce{^2H} works as above, it is not a problem for me.  Although make
> it configurable is more user-friendly; "^:{}" is already there afterall,
> adding another style feels natural.

It's not about adding another style. "^:{}" allows less (without
changing syntax, because the limitation is done at the export level),
you want to allow more, which implies to change syntax. I don't want the
latter to be configurable.

I explained in this thread why it wasn't possible, for the time being,
to allow a blank character before sub or superscript. This was discussed
on this ML, you may want to search archives.


Regards,

-- 
Nicolas Goaziou

next prev parent reply	other threads:[~2014-06-29 13:53 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-06-27 10:42 Bug: [regression] superscript not available after non-alphanumeric [8.2.7b (8.2.7b-dist @ /home/benda/gnto/usr/share/emacs/site-lisp/org-mode/)] heroxbd
2014-06-27 11:55 ` Nicolas Goaziou
2014-06-28  1:39   ` syntax specification (was Re: Bug: [regression] superscript not available after non-alphanumeric) heroxbd
2014-06-29 11:47   ` [PATCH] curly nested latex fragments (was: " heroxbd
2014-06-29 13:53     ` Nicolas Goaziou [this message]
2014-06-30  0:38       ` [PATCH] curly nested latex fragments heroxbd
2014-06-30 12:31         ` Nicolas Goaziou
2014-06-30 21:50           ` heroxbd
2014-07-06 20:11             ` Nicolas Goaziou

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