From e16c79d80800f426fb0a45cf5a7aad354d4e2077 Mon Sep 17 00:00:00 2001
From: Stefan Berghofer
Date: Fri, 29 Aug 2003 14:51:06 +0000
Subject: Corrected fix from Sebastian Skalberg.

---
 isar/isar-syntax.el | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/isar/isar-syntax.el b/isar/isar-syntax.el
index 336305b0..6b8f4f30 100644
--- a/isar/isar-syntax.el
+++ b/isar/isar-syntax.el
@@ -192,9 +192,10 @@
 ;   l "\\|"))
 
 (defconst isar-long-id-stuff "\\(?:[A-Za-z0-9'_.]+\\)")
-(defconst isar-ext-letter "\\(?:\\\\<[A-Za-z]+>\\|[A-Za-z]\\)")
+(defconst isar-ext-first "\\(?:\\\\<[A-Za-z]+>\\|[A-Za-z]\\)")
+(defconst isar-ext-rest "\\(?:\\\\<[A-Za-z]+>\\|[A-Za-z0-9'_]\\)*")
 
-(defconst isar-id (concat "\\(?:" isar-ext-letter "+\\)"))
+(defconst isar-id (concat "\\(?:" isar-ext-first isar-ext-rest "\\)"))
 (defconst isar-idx (concat isar-id "\\(?:\\.[0-9]+\\)?"))
 
 (defconst isar-string "\"\\(?:\\(?:[^\"]\\|\\\\\"\\)*\\)\"")
-- 
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