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/* Copyright (C) 2009 Wildfire Games.
* This file is part of 0 A.D.
*
* 0 A.D. is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* 0 A.D. 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with 0 A.D. If not, see <http://www.gnu.org/licenses/>.
*/
/*
A basic_string derivative that works with uint16_t as its underlying char
type.
*/
#ifndef INCLUDED_UTF16STRING
#define INCLUDED_UTF16STRING
// On Linux, wchar_t is 32-bit, so define a new version of it.
// We now use this code on Windows as well, because wchar_t is a
// native type and distinct from utf16_t.
#include <string>
#include <memory.h>
#include <algorithm>
typedef uint16_t utf16_t;
// jw: this was originally defined in the std namespace, which is at
// least frowned upon if not illegal. giving it a new name and passing it
// as a template parameter is the "correct" and safe way.
struct utf16_traits
{
typedef utf16_t char_type;
typedef int int_type;
typedef std::streampos pos_type;
typedef std::streamoff off_type;
typedef std::mbstate_t state_type;
static void assign(char_type& c1, const char_type& c2)
{ c1 = c2; }
static bool eq(const char_type& c1, const char_type& c2)
{ return c1 == c2; }
static bool lt(const char_type& c1, const char_type& c2)
{ return c1 < c2; }
static int compare(const char_type* s1, const char_type* s2, size_t n)
{
return memcmp(s1, s2, n*sizeof(char_type));
}
static size_t length(const char_type* s)
{
const char_type* end=s;
while (*end) end++;
return (size_t)(end-s);
}
static const char_type* find(const char_type* s, size_t n, const char_type& a)
{
const char_type *end = s+n;
const char_type *res = std::find(s, end, a);
return (res != end)?res:NULL;
}
static char_type* move(char_type* s1, const char_type* s2, size_t n)
{
return (char_type *)memmove(s1, s2, n*sizeof(char_type));
}
static char_type* copy(char_type* s1, const char_type* s2, size_t n)
{
return (char_type *)memcpy(s1, s2, n*sizeof(char_type));
}
static char_type* assign(char_type* s, size_t n, char_type a)
{
while (n--)
{
s[n]=a;
}
return s;
}
static char_type to_char_type(const int_type& c)
{ return (char_type)c; }
static int_type to_int_type(const char_type& c)
{ return (int_type)c; }
static bool eq_int_type(const int_type& c1, const int_type& c2)
{ return c1 == c2; }
static int_type eof()
{ return -1; }
static int_type not_eof(const int_type& c)
{ return (c == -1) ? 0 : c; }
};
typedef std::basic_string<utf16_t, utf16_traits> utf16string;
typedef std::basic_stringstream<utf16_t, utf16_traits> utf16stringstream;
#endif
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