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rAKA/src/common/aka_ci_string.hh
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aka_ci_string.hh
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/**
* @file aka_ci_string.hh
*
* @author Alejandro M. Aragón <alejandro.aragon@epfl.ch>
*
* @date creation: Fri Jan 04 2013
* @date last modification: Fri Jan 04 2013
*
* @brief Case insensitive string
*
* @section LICENSE
*
* Copyright (©) 2014 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
/* -------------------------------------------------------------------------- */
#ifndef __AKANTU_CI_STRING_HH__
#define __AKANTU_CI_STRING_HH__
__BEGIN_AKANTU__
/// Traits class for a case insensitive string class
struct ci_char_traits : public std::char_traits<char> {
static bool eq( char c1, char c2 )
{ return toupper(c1) == toupper(c2); }
static bool ne( char c1, char c2 )
{ return toupper(c1) != toupper(c2); }
static bool lt( char c1, char c2 )
{ return toupper(c1) < toupper(c2); }
static int compare(const char* s1, const char* s2, size_t n )
{ return memicmp( s1, s2, n ); }
private:
static int memicmp(const void *s1, const void *s2, size_t n) {
if (n != 0) {
const unsigned char *p1 = (const unsigned char *)s1, *p2 = (const unsigned char *)s2;
do {
if (toupper(*p1) != toupper(*p2))
return (*p1 - *p2);
p1++;
p2++;
} while (--n != 0);
}
return 0;
}
};
/// case insensitive string type definition
typedef std::basic_string<char, ci_char_traits> ci_string;
/// provide standard output for case insensitive string
template<typename char_type, typename traits_type, typename allocator_type>
inline std::basic_ostream<char_type, traits_type>&
operator<<(std::basic_ostream<char_type, traits_type>& os,
const std::basic_string<char_type, ci_char_traits, allocator_type>& str) {
return std::__ostream_insert(os, str.data(), str.size());
}
__END_AKANTU__
#endif /* __AKANTU_CI_STRING_HH__ */
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