diff --git a/etc/ORG-NEWS b/etc/ORG-NEWS index 5183b58de..ea7ccb7c5 100644 --- a/etc/ORG-NEWS +++ b/etc/ORG-NEWS @@ -459,6 +459,13 @@ By default, Haskell blocks are interpreted. By adding =:compile yes= to a Haskell source block, it will be compiled, executed and the results will be displayed. +*** Support for ~org-edit-special~ with LaTeX fragments. + +Calling ~org-edit-special~ on an inline LaTeX fragment calls a new +function, ~org-edit-latex-fragment~. This functions in a comparable +manner to editing inline source blocks, bringing up a minibuffer set +to LaTeX mode. The math-mode deliminators are read only. + * Version 9.3 ** Incompatible changes diff --git a/lisp/org-src.el b/lisp/org-src.el index 1643607e4..ef8d2b889 100644 --- a/lisp/org-src.el +++ b/lisp/org-src.el @@ -363,6 +363,12 @@ 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-with-point-at (org-element-property :end datum) + (skip-chars-backward " \t") + (point)))) + (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 +965,46 @@ 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 'latex-fragment (org-element-type context)) + (org-src--on-datum-p context)) + (user-error "Not on a LaTeX fragment")) + (let* ((contents + (buffer-substring-no-properties + (org-element-property :begin context) + (- (org-element-property :end context) + (org-element-property :post-blank context)))) + (delim-length (if (string-match "\\`\\$[^$]" contents)) 1 2)) + ;; Make the LaTeX deliminators read-only. + (add-text-properties 0 delim-length + (list 'read-only "Cannot edit LaTeX deliminator" + 'front-sticky t + 'rear-nonsticky t) + contents) + (let ((l (length contents))) + (add-text-properties (- l delim-length) l + (list 'read-only "Cannot edit LaTeX deliminator" + 'front-sticky nil + 'rear-nonsticky nil) + contents)) + (org-src--edit-element + context + (org-src--construct-edit-buffer-name (buffer-name) "LaTeX fragment") + (org-src-get-lang-mode "latex") + (lambda () + ;; Blank lines break things, replace with a single newline. + (while (re-search-forward "\n[ \t]*\n" nil t) (replace-match "\n")) + ;; If within a table a newline would disrupt the structure, + ;; so remove newlines. + (goto-char (point-min)) + (when (org-element-lineage context '(table-cell)) + (while (search-forward "\n" nil t) (replace-match " ")))) + contents)) + t)) + (defun org-edit-latex-environment () "Edit LaTeX environment at point. \\ 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)))