# Fix keyword handling to accept alphanumerics, not just alphabetics.
# Thanks to Branden Robinson for this fix.
diff -Nur src/rcs.c src/rcs.c
--- src/rcs.c	2005-09-28 23:25:59.000000000 +0800
+++ src/rcs.c	2006-02-26 17:58:32.000000000 +0800
@@ -3680,13 +3680,18 @@
 	srch_len -= (srch_next + 1) - srch;
 	srch = srch_next + 1;
 
-	/* Look for the first non alphabetic character after the '$'.  */
+    /*
+     * Accept alphanumerics, not just alphabetics.  XFree86, anyone?
+     * Branden Robinson  Sat,  7 Sep 2002 02:04:59 -0500
+     */
+
+    /* Look for the first non alphanumeric character after the '$'.  */
 	send = srch + srch_len;
 	for (s = srch; s < send; s++)
-	    if (! isalpha ((unsigned char) *s))
+	    if (! isalnum ((unsigned char) *s))
 		break;
 
-	/* If the first non alphabetic character is not '$' or ':',
+	/* If the first non alphanumeric character is not '$' or ':',
            then this is not an RCS keyword.  */
 	if (s == send || (*s != '$' && *s != ':'))
 	    continue;