Hello Nicolas,
Nicolas Goaziou <m...@nicolasgoaziou.fr> writes:
> If you want to insert raw LaTeX in an Org buffer, then \ce{^{238}U} is
> invalid because you cannot nest braces. You can write instead:
>
> @@latex:\ce{^{238}U}@@
>
> or you can define a macro, e.g.,:
>
> #+MACRO: ce @@latex:\ce{$1}@@
>
> and then use
>
> {{{ce(^{238}U)}}}
Nesting braces is already implemented in the classic org-latex.el[1],
and is forward ported into org-element.el. Would you like to take a
look at the attached patch? Thanks.
> Also, ^2H is not recognized as superscript _on purpose_. Per Org syntax,
> you have to add a non-blank character before the caret. Otherwise, there
> would be ambiguity between underline (e.g., _under_) and subscript
> (_under). And superscript syntax follows subscript's.
>
> In this case, you can probably use a math snippet, e.g.,
>
> \(^2\)H
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.
Thanks,
Benda
1.
http://orgmode.org/w/org-mode.git?p=org-mode.git;a=blob;f=lisp/org-latex.el;hb=107f921d121f5a9bb5a9324f19339e4435633d2d#l2597
support nested curly bracket pairs in latex fragments.
http://lists.gnu.org/archive/html/emacs-orgmode/2014-06/msg01022.html
Index: org-8.2.7b/lisp/org-element.el
===================================================================
--- org-8.2.7b.orig/lisp/org-element.el
+++ org-8.2.7b/lisp/org-element.el
@@ -3026,7 +3026,12 @@ Assume point is at the beginning of the
(looking-at latex-regexp))))
(throw 'exit (nth 2 e)))))
;; None found: it's a macro.
- (looking-at "\\\\[a-zA-Z]+\\*?\\(\\(\\[[^][\n{}]*\\]\\)\\|\\({[^{}\n]*}\\)\\)*")
+ (looking-at (concat
+ "\\\\\\([a-zA-Z]+\\*?\\)"
+ "\\(?:<[^<>\n]*>\\)*"
+ "\\(?:\\[[^][\n]*?\\]\\)*"
+ "\\(?:<[^<>\n]*>\\)*"
+ "\\(" (org-create-multibrace-regexp "{" "}" 3) "\\)\\{1,3\\}"))
0))
(value (org-match-string-no-properties substring-match))
(post-blank (progn (goto-char (match-end substring-match))
Index: org-8.2.7b/doc/org.texi
===================================================================
--- org-8.2.7b.orig/doc/org.texi
+++ org-8.2.7b/doc/org.texi
@@ -10168,6 +10168,9 @@ any @LaTeX{} environment will be handled
@code{\begin} and @code{\end} statements appear on a new line, at the
beginning of the line or after whitespaces only.
@item
+Commands like \command[...]{...} or \command{...}; the curly brakets could be
+nested up to 3 levels.
+@item
Text within the usual @LaTeX{} math delimiters. To avoid conflicts with
currency specifications, single @samp{$} characters are only recognized as
math delimiters if the enclosed text contains at most two line breaks, is
