Re: (Feature Request) have org-edit-special work inside non-environment LaTeX blocks, i.e. \( \) and \[ \]

[TEC <tecosaur@gmail.com>]

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TEC <tecosaur@gmail.com> writes: 
 
> Well, I'm currently having a look at patching this, so this 
> looks hopeful :) 

Done! Here's a first-pass patch. Please try it out and let me know 
what you think.


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From 379e23545d7e55766e48b50514bd797bdf691a40 Mon Sep 17 00:00:00 2001
From: TEC <tec@tecosaur.com>
Date: Sun, 24 May 2020 23:35:33 +0800
Subject: [PATCH] Extend org-edit-special to editing LaTeX-fragments

---
 lisp/org-src.el | 19 +++++++++++++++++++
 lisp/org.el     |  1 +
 2 files changed, 20 insertions(+)

diff --git a/lisp/org-src.el b/lisp/org-src.el
index c9eef744e..d648ce2c9 100644
--- a/lisp/org-src.el
+++ b/lisp/org-src.el
@@ -363,6 +363,10 @@ where BEG and END are buffer positions and CONTENTS is a string."
 	     (end (progn (goto-char (org-element-property :end datum))
 			 (search-backward "}" (line-beginning-position) t))))
 	 (list beg end (buffer-substring-no-properties beg end))))
+      ((eq type 'latex-fragment)
+       (let ((beg (org-element-property :begin datum))
+	     (end (org-element-property :end datum)))
+	 (list beg end (buffer-substring-no-properties beg end))))
       ((org-element-property :contents-begin datum)
        (let ((beg (org-element-property :contents-begin datum))
 	     (end (org-element-property :contents-end datum)))
@@ -959,6 +963,21 @@ Throw an error when not at such a table."
     (table-recognize)
     t))
 
+(defun org-edit-latex-fragment ()
+  "Edit LaTeX fragment at point."
+  (interactive)
+  (let ((context (org-element-context)))
+    (unless (and (eq (org-element-type context) 'latex-fragment)
+		 (org-src--on-datum-p context))
+      (user-error "Not on a LaTeX fragment"))
+    (pp (org-element-property :contents-begin context))
+    (org-src--edit-element
+     context
+     (org-src--construct-edit-buffer-name (buffer-name) "LaTeX fragment")
+     (org-src-get-lang-mode "latex")
+     t)
+  t))
+
 (defun org-edit-latex-environment ()
   "Edit LaTeX environment at point.
 \\<org-src-mode-map>
diff --git a/lisp/org.el b/lisp/org.el
index 40c3c46b9..0808fc210 100644
--- a/lisp/org.el
+++ b/lisp/org.el
@@ -17347,6 +17347,7 @@ Otherwise, return a user error."
 	 (pcase (org-element-type context)
 	   (`footnote-reference (org-edit-footnote-reference))
 	   (`inline-src-block (org-edit-inline-src-code))
+	   (`latex-fragment (org-edit-latex-fragment))
 	   (`timestamp (if (eq 'inactive (org-element-property :type context))
 			   (call-interactively #'org-time-stamp-inactive)
 			 (call-interactively #'org-time-stamp)))
-- 
2.26.2


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