[O] [PATCH] better parsing of latex fragments

[Florian Beck]

Hi,

this patch allows, once again, latex fragments inside parentheses and
also fragments like $\left(\frac12\right.$
-- 
Florian Beck

>From 3ef8041c8dd8acbdf810f72feb8e9e104545badb Mon Sep 17 00:00:00 2001
From: Florian Beck <address@hidden>
Date: Sun, 13 Jul 2014 14:59:24 +0200
Subject: [PATCH] Allow latex fragments inside parentheses and those ending with
 punctuation.

* lisp/org-element.el:
(org-element-latex-fragment-parser): more lenient regexps
*
  testing/lisp/test-org-element.el (test-org-element/latex-fragment-parser): 
add tests
---
 lisp/org-element.el              | 4 ++--
 testing/lisp/test-org-element.el | 8 ++++++++
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/lisp/org-element.el b/lisp/org-element.el
index 7aa8208..7d10d61 100644
--- a/lisp/org-element.el
+++ b/lisp/org-element.el
@@ -2918,8 +2918,8 @@ Assume point is at the beginning of the LaTeX fragment."
                    (and (not (eq (char-before) ?$))
                         (search-forward "$" nil t 2)
                         (not (memq (char-before (match-beginning 0))
-                                   '(?\s ?\t ?\n ?, ?.)))
-                        (looking-at "\\([- \t.,?;:'\"]\\|$\\)")
+                                   '(?\s ?\t ?\n)))
+                        (looking-at "\\([[:space:][:punct:]]\\|$\\)")
                         (point)))
                (case (char-after (1+ (point)))
                  (?\( (search-forward "\\)" nil t))
diff --git a/testing/lisp/test-org-element.el b/testing/lisp/test-org-element.el
index b2b0c52..788f13b 100644
--- a/testing/lisp/test-org-element.el
+++ b/testing/lisp/test-org-element.el
@@ -1337,6 +1337,14 @@ e^{i\\pi}+1=0
    (org-test-with-temp-text "\\[a\\]"
      (org-element-map
         (org-element-parse-buffer) 'latex-fragment 'identity)))
+  (should
+   (org-test-with-temp-text "($a$)"
+     (org-element-map
+        (org-element-parse-buffer) 'latex-fragment 'identity)))
+  (should
+   (org-test-with-temp-text "$\\left(a\right.$"
+     (org-element-map
+        (org-element-parse-buffer) 'latex-fragment 'identity)))
   ;; Test fragment at the beginning of an item.
   (should
    (eq 'latex-fragment
-- 
1.9.1