From 7a89b4b5d3bb44a1f43cc32c73cc85b63658c38b Mon Sep 17 00:00:00 2001
From: Tassilo Horn <tsdh@gnu.org>
Date: Sun, 10 Jan 2021 09:40:07 +0100
Subject: [PATCH] Support keyval style beamer frame labels

* lisp/textmodes/reftex-vars.el (reftex-label-regexps): Support keyval
style beamer frame labels.
---
 lisp/textmodes/reftex-vars.el | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/lisp/textmodes/reftex-vars.el b/lisp/textmodes/reftex-vars.el
index 073059d52e8..d4c1b87262e 100644
--- a/lisp/textmodes/reftex-vars.el
+++ b/lisp/textmodes/reftex-vars.el
@@ -906,7 +906,8 @@ DOWNCASE    t:   Downcase words before using them."
         ;; begin, optional spaces and opening brace
         "begin[[:space:]]*{"
         ;; Build a regexp for env names
-        (regexp-opt '("lstlisting" "dmath" "dseries" "dgroup" "darray"))
+        (regexp-opt '("lstlisting" "dmath" "dseries" "dgroup"
+                      "darray" "frame"))
         ;; closing brace, optional spaces
         "}[[:space:]]*"
         ;; Now for macros
@@ -919,9 +920,9 @@ DOWNCASE    t:   Downcase words before using them."
         "\\[[^][]*"
         ;; Allow nested levels of chars enclosed in braces
         "\\(?:{[^}{]*"
-          "\\(?:{[^}{]*"
-            "\\(?:{[^}{]*}[^}{]*\\)*"
-          "}[^}{]*\\)*"
+        "\\(?:{[^}{]*"
+        "\\(?:{[^}{]*}[^}{]*\\)*"
+        "}[^}{]*\\)*"
         "}[^][]*\\)*"
         ;; Match the label key
         "\\<label[[:space:]]*=[[:space:]]*"
@@ -944,7 +945,7 @@ you have to define it using \\(?1:...\\) when adding new regexps.
 When changed from Lisp, make sure to call
 `reftex-compile-variables' afterwards to make the change
 effective."
-    :version "27.1"
+    :version "28.1"
     :set (lambda (symbol value)
 	   (set symbol value)
 	   (when (fboundp 'reftex-compile-variables)
-- 
2.39.5