121 lines
2.9 KiB
C++
121 lines
2.9 KiB
C++
/*
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* This file is part of libsidplayfp, a SID player engine.
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*
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* Copyright 2013-2014 Leandro Nini
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef STRINGUTILS_H
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#define STRINGUTILS_H
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#if defined(HAVE_STRCASECMP) || defined (HAVE_STRNCASECMP)
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# include <strings.h>
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#endif
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#if defined(HAVE_STRICMP) || defined (HAVE_STRNICMP)
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# include <string.h>
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#endif
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#include <cctype>
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#include <algorithm>
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#include <string>
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namespace stringutils
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{
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/**
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* Compare two characters in a case insensitive way.
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*/
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inline bool casecompare(char c1, char c2) { return (tolower(c1) == tolower(c2)); }
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/**
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* Compare two strings in a case insensitive way.
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*
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* @return true if strings are equal.
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*/
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inline bool equal(const std::string& s1, const std::string& s2)
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{
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return s1.size() == s2.size()
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&& std::equal(s1.begin(), s1.end(), s2.begin(), casecompare);
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}
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/**
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* Compare two strings in a case insensitive way.
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*
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* @return true if strings are equal.
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*/
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inline bool equal(const char* s1, const char* s2)
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{
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#if defined(HAVE_STRCASECMP)
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return strcasecmp(s1, s2) == 0;
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#elif defined(HAVE_STRICMP)
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return stricmp(s1, s2) == 0;
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#else
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if (s1 == s2)
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return true;
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if (s1 == 0 || s2 == 0)
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return false;
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while ((*s1 != '\0') || (*s2 != '\0'))
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{
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if (!casecompare(*s1, *s2))
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return false;
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++s1;
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++s2;
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}
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return true;
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#endif
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}
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/**
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* Compare first n characters of two strings in a case insensitive way.
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*
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* @return true if strings are equal.
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*/
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inline bool equal(const char* s1, const char* s2, size_t n)
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{
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#if defined(HAVE_STRNCASECMP)
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return strncasecmp(s1, s2, n) == 0;
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#elif defined(HAVE_STRNICMP)
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return strnicmp(s1, s2, n) == 0;
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#else
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if (s1 == s2 || n == 0)
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return true;
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if (s1 == 0 || s2 == 0)
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return false;
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while (n-- && ((*s1 != '\0') || (*s2 != '\0')))
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{
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if (!casecompare(*s1, *s2))
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return false;
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++s1;
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++s2;
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}
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return true;
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#endif
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}
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}
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#endif
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