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aka_ci_string.hh
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Tue, Aug 27, 19:28
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rAKA akantu
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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