1 files changed, 71 insertions, 0 deletions
diff --git a/src/VBox/Runtime/common/string/RTUtf16NICmpAscii.cpp b/src/VBox/Runtime/common/string/RTUtf16NICmpAscii.cpp
new file mode 100644
index 00000000..76c2678d
--- /dev/null
+++ b/src/VBox/Runtime/common/string/RTUtf16NICmpAscii.cpp
@@ -0,0 +1,71 @@
+/* $Id: RTUtf16NICmpAscii.cpp $ */
+/** @file
+ * IPRT - RTUtf16ICmpAscii.
+ */
+
+/*
+ * Copyright (C) 2010-2022 Oracle and/or its affiliates.
+ *
+ * This file is part of VirtualBox base platform packages, as
+ * available from https://www.virtualbox.org.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation, in version 3 of the
+ * License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, see <https://www.gnu.org/licenses>.
+ *
+ * The contents of this file may alternatively be used under the terms
+ * of the Common Development and Distribution License Version 1.0
+ * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
+ * in the VirtualBox distribution, in which case the provisions of the
+ * CDDL are applicable instead of those of the GPL.
+ *
+ * You may elect to license modified versions of this file under the
+ * terms and conditions of either the GPL or the CDDL or both.
+ *
+ * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
+ */
+
+
+/*********************************************************************************************************************************
+*   Header Files                                                                                                                 *
+*********************************************************************************************************************************/
+#include <iprt/utf16.h>
+#include "internal/iprt.h"
+
+#include <iprt/assert.h>
+#include <iprt/ctype.h>
+
+
+RTDECL(int) RTUtf16NICmpAscii(PCRTUTF16 pwsz1, const char *psz2, size_t cwcMax)
+{
+    for (;;)
+    {
+        if (cwcMax == 0)
+            return 0;
+
+        RTUTF16         wc1  = *pwsz1++;
+        unsigned char   uch2 = *psz2++; Assert(uch2 < 0x80);
+        if (wc1 != uch2)
+        {
+            if (wc1 >= 0x80)
+                return 1;
+            if (RT_C_TO_LOWER(wc1) != RT_C_TO_LOWER(uch2))
+                return wc1 < uch2 ? -1 : 1;
+        }
+
+        if (!uch2)
+            return 0;
+        cwcMax--;
+    }
+}
+RT_EXPORT_SYMBOL(RTUtf16NICmpAscii);
+