mirror of
https://github.com/VCMP-SqMod/SqMod.git
synced 2024-11-09 01:07:16 +01:00
306 lines
6.4 KiB
C
306 lines
6.4 KiB
C
|
//
|
||
|
|
// UTFString.h
|
||
|
|
//
|
||
|
|
// Library: Foundation
|
||
|
|
// Package: Text
|
||
|
|
// Module: UTFString
|
||
|
|
//
|
||
|
|
// Definitions of strings for UTF encodings.
|
||
|
|
//
|
||
|
|
// Copyright (c) 2004-2006, Applied Informatics Software Engineering GmbH.
|
||
|
|
// and Contributors.
|
||
|
|
//
|
||
|
|
// SPDX-License-Identifier: BSL-1.0
|
||
|
|
//
|
||
|
|
|
||
|
|
|
||
|
|
#ifndef Foundation_UTFString_INCLUDED
|
||
|
|
#define Foundation_UTFString_INCLUDED
|
||
|
|
|
||
|
|
|
||
|
|
#include "Poco/Foundation.h"
|
||
|
|
#include "Poco/Types.h"
|
||
|
|
#include <string>
|
||
|
|
|
||
|
|
|
||
|
|
namespace Poco {
|
||
|
|
|
||
|
|
|
||
|
|
struct UTF16CharTraits
|
||
|
|
{
|
||
|
|
typedef std::fpos<std::mbstate_t> u16streampos;
|
||
|
|
typedef UInt16 char_type;
|
||
|
|
typedef int int_type;
|
||
|
|
typedef std::streamoff off_type;
|
||
|
|
typedef u16streampos pos_type;
|
||
|
|
typedef std::mbstate_t state_type;
|
||
|
|
|
||
|
|
static void assign(char_type& c1, const char_type& c2)
|
||
|
|
{
|
||
|
|
c1 = c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool eq(char_type c1, char_type c2)
|
||
|
|
{
|
||
|
|
return c1 == c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool lt(char_type c1, char_type c2)
|
||
|
|
{
|
||
|
|
return c1 < c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int compare(const char_type* s1, const char_type* s2, std::size_t n)
|
||
|
|
{
|
||
|
|
for (; n; --n, ++s1, ++s2)
|
||
|
|
{
|
||
|
|
if (lt(*s1, *s2))
|
||
|
|
return -1;
|
||
|
|
if (lt(*s2, *s1))
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static std::size_t length(const char_type* s)
|
||
|
|
{
|
||
|
|
std::size_t len = 0;
|
||
|
|
for (; !eq(*s, char_type(0)); ++s)
|
||
|
|
++len;
|
||
|
|
return len;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const char_type* find(const char_type* s, std::size_t n, const char_type& a)
|
||
|
|
{
|
||
|
|
for (; n; --n)
|
||
|
|
{
|
||
|
|
if (eq(*s, a))
|
||
|
|
return s;
|
||
|
|
++s;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type* move(char_type* s1, const char_type* s2, std::size_t n)
|
||
|
|
{
|
||
|
|
char_type* r = s1;
|
||
|
|
if (s1 < s2)
|
||
|
|
{
|
||
|
|
for (; n; --n, ++s1, ++s2)
|
||
|
|
assign(*s1, *s2);
|
||
|
|
}
|
||
|
|
else if (s2 < s1)
|
||
|
|
{
|
||
|
|
s1 += n;
|
||
|
|
s2 += n;
|
||
|
|
for (; n; --n)
|
||
|
|
assign(*--s1, *--s2);
|
||
|
|
}
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type* copy(char_type* s1, const char_type* s2, std::size_t n)
|
||
|
|
{
|
||
|
|
poco_assert(s2 < s1 || s2 >= s1 + n);
|
||
|
|
char_type* r = s1;
|
||
|
|
for (; n; --n, ++s1, ++s2)
|
||
|
|
assign(*s1, *s2);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type* assign(char_type* s, std::size_t n, char_type a)
|
||
|
|
{
|
||
|
|
char_type* r = s;
|
||
|
|
for (; n; --n, ++s)
|
||
|
|
assign(*s, a);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int_type not_eof(int_type c)
|
||
|
|
{
|
||
|
|
return eq_int_type(c, eof()) ? ~eof() : c;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type to_char_type(int_type c)
|
||
|
|
{
|
||
|
|
return char_type(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int_type to_int_type(char_type c)
|
||
|
|
{
|
||
|
|
return int_type(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool eq_int_type(int_type c1, int_type c2)
|
||
|
|
{
|
||
|
|
return c1 == c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int_type eof()
|
||
|
|
{
|
||
|
|
return int_type(0xDFFF);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
struct UTF32CharTraits
|
||
|
|
{
|
||
|
|
typedef std::fpos<std::mbstate_t> u32streampos;
|
||
|
|
typedef UInt32 char_type;
|
||
|
|
typedef int int_type;
|
||
|
|
typedef std::streamoff off_type;
|
||
|
|
typedef u32streampos pos_type;
|
||
|
|
typedef std::mbstate_t state_type;
|
||
|
|
|
||
|
|
static void assign(char_type& c1, const char_type& c2)
|
||
|
|
{
|
||
|
|
c1 = c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool eq(char_type c1, char_type c2)
|
||
|
|
{
|
||
|
|
return c1 == c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool lt(char_type c1, char_type c2)
|
||
|
|
{
|
||
|
|
return c1 < c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int compare(const char_type* s1, const char_type* s2, std::size_t n)
|
||
|
|
{
|
||
|
|
for (; n; --n, ++s1, ++s2)
|
||
|
|
{
|
||
|
|
if (lt(*s1, *s2))
|
||
|
|
return -1;
|
||
|
|
if (lt(*s2, *s1))
|
||
|
|
return 1;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static std::size_t length(const char_type* s)
|
||
|
|
{
|
||
|
|
std::size_t len = 0;
|
||
|
|
for (; !eq(*s, char_type(0)); ++s)
|
||
|
|
++len;
|
||
|
|
return len;
|
||
|
|
}
|
||
|
|
|
||
|
|
static const char_type* find(const char_type* s, std::size_t n, const char_type& a)
|
||
|
|
{
|
||
|
|
for (; n; --n)
|
||
|
|
{
|
||
|
|
if (eq(*s, a))
|
||
|
|
return s;
|
||
|
|
++s;
|
||
|
|
}
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type* move(char_type* s1, const char_type* s2, std::size_t n)
|
||
|
|
{
|
||
|
|
char_type* r = s1;
|
||
|
|
if (s1 < s2)
|
||
|
|
{
|
||
|
|
for (; n; --n, ++s1, ++s2)
|
||
|
|
assign(*s1, *s2);
|
||
|
|
}
|
||
|
|
else if (s2 < s1)
|
||
|
|
{
|
||
|
|
s1 += n;
|
||
|
|
s2 += n;
|
||
|
|
for (; n; --n)
|
||
|
|
assign(*--s1, *--s2);
|
||
|
|
}
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type* copy(char_type* s1, const char_type* s2, std::size_t n)
|
||
|
|
{
|
||
|
|
poco_assert(s2 < s1 || s2 >= s1 + n);
|
||
|
|
char_type* r = s1;
|
||
|
|
for (; n; --n, ++s1, ++s2)
|
||
|
|
assign(*s1, *s2);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type* assign(char_type* s, std::size_t n, char_type a)
|
||
|
|
{
|
||
|
|
char_type* r = s;
|
||
|
|
for (; n; --n, ++s)
|
||
|
|
assign(*s, a);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int_type not_eof(int_type c)
|
||
|
|
{
|
||
|
|
return eq_int_type(c, eof()) ? ~eof() : c;
|
||
|
|
}
|
||
|
|
|
||
|
|
static char_type to_char_type(int_type c)
|
||
|
|
{
|
||
|
|
return char_type(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
static int_type to_int_type(char_type c)
|
||
|
|
{
|
||
|
|
return int_type(c);
|
||
|
|
}
|
||
|
|
|
||
|
|
static bool eq_int_type(int_type c1, int_type c2)
|
||
|
|
{
|
||
|
|
return c1 == c2;
|
||
|
|
}
|
||
|
|
|
||
|
|
static int_type eof()
|
||
|
|
{
|
||
|
|
return int_type(0xDFFF);
|
||
|
|
}
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
//#if defined(POCO_ENABLE_CPP11) //TODO
|
||
|
|
// typedef char16_t UTF16Char;
|
||
|
|
// typedef std::u16string UTF16String;
|
||
|
|
// typedef char32_t UTF32Char;
|
||
|
|
// typedef std::u32string UTF32String;
|
||
|
|
//#else
|
||
|
|
#ifdef POCO_NO_WSTRING
|
||
|
|
typedef Poco::UInt16 UTF16Char;
|
||
|
|
typedef std::basic_string<UTF16Char, UTF16CharTraits> UTF16String;
|
||
|
|
typedef UInt32 UTF32Char;
|
||
|
|
typedef std::basic_string<UTF32Char, UTF32CharTraits> UTF32String;
|
||
|
|
#else // POCO_NO_WSTRING
|
||
|
|
#if defined(POCO_OS_FAMILY_WINDOWS)
|
||
|
|
typedef wchar_t UTF16Char;
|
||
|
|
typedef std::wstring UTF16String;
|
||
|
|
typedef UInt32 UTF32Char;
|
||
|
|
typedef std::basic_string<UTF32Char, UTF32CharTraits> UTF32String;
|
||
|
|
#elif defined(__SIZEOF_WCHAR_T__) //gcc
|
||
|
|
#if (__SIZEOF_WCHAR_T__ == 2)
|
||
|
|
typedef wchar_t UTF16Char;
|
||
|
|
typedef std::wstring UTF16String;
|
||
|
|
typedef UInt32 UTF32Char;
|
||
|
|
typedef std::basic_string<UTF32Char, UTF32CharTraits> UTF32String;
|
||
|
|
#elif (__SIZEOF_WCHAR_T__ == 4)
|
||
|
|
typedef Poco::UInt16 UTF16Char;
|
||
|
|
typedef std::basic_string<UTF16Char, UTF16CharTraits> UTF16String;
|
||
|
|
typedef wchar_t UTF32Char;
|
||
|
|
typedef std::wstring UTF32String;
|
||
|
|
#endif
|
||
|
|
#else // default to 32-bit wchar_t
|
||
|
|
typedef Poco::UInt16 UTF16Char;
|
||
|
|
typedef std::basic_string<UTF16Char, UTF16CharTraits> UTF16String;
|
||
|
|
typedef wchar_t UTF32Char;
|
||
|
|
typedef std::wstring UTF32String;
|
||
|
|
#endif //POCO_OS_FAMILY_WINDOWS
|
||
|
|
#endif //POCO_NO_WSTRING
|
||
|
|
//#endif // POCO_ENABLE_CPP11
|
||
|
|
|
||
|
|
|
||
|
|
} // namespace Poco
|
||
|
|
|
||
|
|
|
||
|
|
#endif // Foundation_UTFString_INCLUDED
|