VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/string/utf-8-case2.cpp@ 81106

Last change on this file since 81106 was 76553, checked in by vboxsync, 6 years ago

scm --update-copyright-year

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  • Property svn:keywords set to Id Revision
File size: 3.3 KB
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1/* $Id: utf-8-case2.cpp 76553 2019-01-01 01:45:53Z vboxsync $ */
2/** @file
3 * IPRT - UTF-8 Case Sensitivity and Folding, Part 2 (requires unidata-flags.cpp).
4 */
5
6/*
7 * Copyright (C) 2006-2019 Oracle Corporation
8 *
9 * This file is part of VirtualBox Open Source Edition (OSE), as
10 * available from http://www.virtualbox.org. This file is free software;
11 * you can redistribute it and/or modify it under the terms of the GNU
12 * General Public License (GPL) as published by the Free Software
13 * Foundation, in version 2 as it comes in the "COPYING" file of the
14 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16 *
17 * The contents of this file may alternatively be used under the terms
18 * of the Common Development and Distribution License Version 1.0
19 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
20 * VirtualBox OSE distribution, in which case the provisions of the
21 * CDDL are applicable instead of those of the GPL.
22 *
23 * You may elect to license modified versions of this file under the
24 * terms and conditions of either the GPL or the CDDL or both.
25 */
26
27
28/*********************************************************************************************************************************
29* Header Files *
30*********************************************************************************************************************************/
31#include <iprt/string.h>
32#include "internal/iprt.h"
33
34#include <iprt/uni.h>
35#include <iprt/alloc.h>
36#include <iprt/assert.h>
37#include <iprt/errcore.h>
38#include "internal/string.h"
39
40
41RTDECL(bool) RTStrIsCaseFoldable(const char *psz)
42{
43 /*
44 * Loop the code points in the string, checking them one by one until we
45 * find something that can be folded.
46 */
47 RTUNICP uc;
48 do
49 {
50 int rc = RTStrGetCpEx(&psz, &uc);
51 if (RT_SUCCESS(rc))
52 {
53 if (RTUniCpIsFoldable(uc))
54 return true;
55 }
56 else
57 {
58 /* bad encoding, just skip it quietly (uc == RTUNICP_INVALID (!= 0)). */
59 AssertRC(rc);
60 }
61 } while (uc != 0);
62
63 return false;
64}
65RT_EXPORT_SYMBOL(RTStrIsCaseFoldable);
66
67
68RTDECL(bool) RTStrIsUpperCased(const char *psz)
69{
70 /*
71 * Check that there are no lower case chars in the string.
72 */
73 RTUNICP uc;
74 do
75 {
76 int rc = RTStrGetCpEx(&psz, &uc);
77 if (RT_SUCCESS(rc))
78 {
79 if (RTUniCpIsLower(uc))
80 return false;
81 }
82 else
83 {
84 /* bad encoding, just skip it quietly (uc == RTUNICP_INVALID (!= 0)). */
85 AssertRC(rc);
86 }
87 } while (uc != 0);
88
89 return true;
90}
91RT_EXPORT_SYMBOL(RTStrIsUpperCased);
92
93
94RTDECL(bool) RTStrIsLowerCased(const char *psz)
95{
96 /*
97 * Check that there are no lower case chars in the string.
98 */
99 RTUNICP uc;
100 do
101 {
102 int rc = RTStrGetCpEx(&psz, &uc);
103 if (RT_SUCCESS(rc))
104 {
105 if (RTUniCpIsUpper(uc))
106 return false;
107 }
108 else
109 {
110 /* bad encoding, just skip it quietly (uc == RTUNICP_INVALID (!= 0)). */
111 AssertRC(rc);
112 }
113 } while (uc != 0);
114
115 return true;
116}
117RT_EXPORT_SYMBOL(RTStrIsLowerCased);
118
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