diff options
Diffstat (limited to 'src/VBox/Runtime/common/string/RTUtf16NICmpAscii.cpp')
-rw-r--r-- | src/VBox/Runtime/common/string/RTUtf16NICmpAscii.cpp | 71 |
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); + |