--- libelwix/src/str.c	2013/01/17 10:05:35	1.1
+++ libelwix/src/str.c	2013/03/07 16:24:32	1.2
@@ -3,7 +3,7 @@
 *  by Michael Pounov <misho@elwix.org>
 *
 * $Author: misho $
-* $Id: str.c,v 1.1 2013/01/17 10:05:35 misho Exp $
+* $Id: str.c,v 1.2 2013/03/07 16:24:32 misho Exp $
 *
 **************************************************************************
 The ELWIX and AITNET software is distributed under the following
@@ -383,3 +383,50 @@ str_Unquot(char * __restrict psLine)
 	return 0;
 }
 
+/*
+ * str_Upper() - Convert all lower characters to upper
+ *
+ * @psLine = Text string
+ * return: 0 nothing to do; !=0 converted chars
+ */
+inline int
+str_Upper(char * __restrict psLine)
+{
+	char *s;
+	register int cx = 0;
+
+	if (!psLine || !*psLine)
+		return 0;
+
+	for (s = psLine; *s; s++)
+		if (islower(*s)) {
+			*s = toupper(*s);
+			cx++;
+		}
+
+	return cx;
+}
+
+/*
+ * str_Lower() - Convert all upper characters to lower
+ *
+ * @psLine = Text string
+ * return: 0 nothing to do; !=0 converted chars
+ */
+inline int
+str_Lower(char * __restrict psLine)
+{
+	char *s;
+	register int cx = 0;
+
+	if (!psLine || !*psLine)
+		return 0;
+
+	for (s = psLine; *s; s++)
+		if (isupper(*s)) {
+			*s = tolower(*s);
+			cx++;
+		}
+
+	return cx;
+}