VirtualBox

source: vbox/trunk/src/VBox/Runtime/common/string/strtok_r.cpp@ 103415

Last change on this file since 103415 was 98103, checked in by vboxsync, 2 years ago

Copyright year updates by scm.

  • Property svn:eol-style set to native
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File size: 2.7 KB
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1/* $Id: strtok_r.cpp 98103 2023-01-17 14:15:46Z vboxsync $ */
2/** @file
3 * IPRT - No-CRT Strings, strtok_r().
4 */
5
6/*
7 * Copyright (C) 2022-2023 Oracle and/or its affiliates.
8 *
9 * This file is part of VirtualBox base platform packages, as
10 * available from https://www.virtualbox.org.
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation, in version 3 of the
15 * License.
16 *
17 * This program is distributed in the hope that it will be useful, but
18 * WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20 * General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, see <https://www.gnu.org/licenses>.
24 *
25 * The contents of this file may alternatively be used under the terms
26 * of the Common Development and Distribution License Version 1.0
27 * (CDDL), a copy of it is provided in the "COPYING.CDDL" file included
28 * in the VirtualBox distribution, in which case the provisions of the
29 * CDDL are applicable instead of those of the GPL.
30 *
31 * You may elect to license modified versions of this file under the
32 * terms and conditions of either the GPL or the CDDL or both.
33 *
34 * SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0
35 */
36
37
38/*********************************************************************************************************************************
39* Header Files *
40*********************************************************************************************************************************/
41#include "internal/iprt.h"
42#include <iprt/string.h>
43
44
45#undef strtok_r
46char *RT_NOCRT(strtok_r)(char *psz, const char *pszDelimiters, char **ppszState)
47{
48 /*
49 * Load state.
50 */
51 if (!psz)
52 {
53 psz = *ppszState;
54 if (!psz)
55 return NULL;
56 }
57
58 /*
59 * Skip leading delimiters.
60 */
61 size_t const cchDelimiters = strlen(pszDelimiters);
62 for (;;)
63 {
64 char ch = *psz;
65 if (!ch)
66 return *ppszState = NULL;
67 if (memchr(pszDelimiters, ch, cchDelimiters) == NULL)
68 break;
69 psz++;
70 }
71
72 /*
73 * Find the end of the token.
74 */
75 char * const pszRet = psz;
76 for (;;)
77 {
78 char ch = *++psz;
79 if (memchr(pszDelimiters, ch, cchDelimiters + 1 /* '\0' */) == NULL)
80 { /* semi-likely */ }
81 else
82 {
83 *psz = '\0';
84 *ppszState = ch ? psz + 1 : NULL;
85 return pszRet;
86 }
87 }
88}
89RT_ALIAS_AND_EXPORT_NOCRT_SYMBOL(strtok_r);
90
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