From cebc4bbf738fe877a8f1908d855e4536eb8a31a2 Mon Sep 17 00:00:00 2001
From: Diego Zamboni <diego@zzamboni.org>
Date: Sat, 13 Feb 2021 22:43:01 +0100
Subject: [PATCH] Improve auto_tangle regex

Use org-make-options-regexp instead of a handcrafted regexp, which
results in more robust matching (e.g. supports options not starting on
the first column).
---
 org-auto-tangle.el | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/org-auto-tangle.el b/org-auto-tangle.el
index 79eaf98..e12c1cc 100644
--- a/org-auto-tangle.el
+++ b/org-auto-tangle.el
@@ -62,8 +62,8 @@ all Org buffers unless `#+auto_tangle: nil' is set.")
       (widen)
       (save-excursion
 	(goto-char (point-min))
-	(when (re-search-forward "^#\\+auto_tangle: \\(.*\\)" nil :noerror)
-	  (match-string 1))))))
+	(when (re-search-forward (org-make-options-regexp '("auto_tangle")) nil :noerror)
+	  (match-string 2))))))
 
 (defun org-auto-tangle-async (file)
   "Invoke `org-babel-tangle-file' asynchronously on FILE."