libsidplayfp 2.3.0
stringutils.h
1/*
2 * This file is part of libsidplayfp, a SID player engine.
3 *
4 * Copyright 2013-2014 Leandro Nini
5 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
19 */
20
21#ifndef STRINGUTILS_H
22#define STRINGUTILS_H
23
24#ifdef HAVE_CONFIG_H
25# include "config.h"
26#endif
27
28#if defined(HAVE_STRCASECMP) || defined (HAVE_STRNCASECMP)
29# include <strings.h>
30#endif
31
32#if defined(HAVE_STRICMP) || defined (HAVE_STRNICMP)
33# include <string.h>
34#endif
35
36#include <cctype>
37#include <algorithm>
38#include <string>
39
40
41namespace stringutils
42{
46 inline bool casecompare(char c1, char c2) { return (tolower(c1) == tolower(c2)); }
47
53 inline bool equal(const std::string& s1, const std::string& s2)
54 {
55 return s1.size() == s2.size()
56 && std::equal(s1.begin(), s1.end(), s2.begin(), casecompare);
57 }
58
64 inline bool equal(const char* s1, const char* s2)
65 {
66#if defined(HAVE_STRCASECMP)
67 return strcasecmp(s1, s2) == 0;
68#elif defined(HAVE_STRICMP)
69 return stricmp(s1, s2) == 0;
70#else
71 if (s1 == s2)
72 return true;
73
74 if (s1 == 0 || s2 == 0)
75 return false;
76
77 while ((*s1 != '\0') || (*s2 != '\0'))
78 {
79 if (!casecompare(*s1, *s2))
80 return false;
81 ++s1;
82 ++s2;
83 }
84
85 return true;
86#endif
87 }
88
94 inline bool equal(const char* s1, const char* s2, size_t n)
95 {
96#if defined(HAVE_STRNCASECMP)
97 return strncasecmp(s1, s2, n) == 0;
98#elif defined(HAVE_STRNICMP)
99 return strnicmp(s1, s2, n) == 0;
100#else
101 if (s1 == s2 || n == 0)
102 return true;
103
104 if (s1 == 0 || s2 == 0)
105 return false;
106
107 while (n-- && ((*s1 != '\0') || (*s2 != '\0')))
108 {
109 if (!casecompare(*s1, *s2))
110 return false;
111 ++s1;
112 ++s2;
113 }
114
115 return true;
116#endif
117 }
118}
119
120#endif