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cosmopolitan/third_party/libcxx/locale2.cc
Justine Tunney 8dd4ec68d0
Add more missing C / C++ headers
2022-09-04 04:53:52 -07:00

2904 lines
92 KiB
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// clang-format off
//===------------------------- locale.cpp ---------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
#include "third_party/libcxx/string"
#include "third_party/libcxx/locale"
#include "third_party/libcxx/codecvt"
#include "third_party/libcxx/vector"
#include "third_party/libcxx/algorithm"
#include "third_party/libcxx/typeinfo"
#ifndef _LIBCPP_NO_EXCEPTIONS
#include "third_party/libcxx/type_traits"
#endif
#include "third_party/libcxx/clocale"
#include "third_party/libcxx/cstring"
#include "third_party/libcxx/cwctype"
#include "third_party/libcxx/__sso_allocator"
#include "third_party/libcxx/include/atomic_support.hh"
#include "libc/str/locale.h"
#include "third_party/libcxx/countof.internal.hh"
#include "third_party/libcxx/__undef_macros"
// On Linux, wint_t and wchar_t have different signed-ness, and this causes
// lots of noise in the build log, but no bugs that I know of.
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wsign-conversion"
#endif
_LIBCPP_BEGIN_NAMESPACE_STD
namespace {
_LIBCPP_NORETURN static void __throw_runtime_error(const string &msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw runtime_error(msg);
#else
(void)msg;
_VSTD::abort();
#endif
}
} // namespace
struct __libcpp_unique_locale {
__libcpp_unique_locale(const char* nm) : __loc_(newlocale(LC_ALL_MASK, nm, 0)) {}
~__libcpp_unique_locale() {
if (__loc_)
freelocale(__loc_);
}
explicit operator bool() const { return __loc_; }
locale_t& get() { return __loc_; }
locale_t __loc_;
private:
__libcpp_unique_locale(__libcpp_unique_locale const&);
__libcpp_unique_locale& operator=(__libcpp_unique_locale const&);
};
// Valid UTF ranges
// UTF-32 UTF-16 UTF-8 # of code points
// first second first second third fourth
// 000000 - 00007F 0000 - 007F 00 - 7F 127
// 000080 - 0007FF 0080 - 07FF C2 - DF, 80 - BF 1920
// 000800 - 000FFF 0800 - 0FFF E0 - E0, A0 - BF, 80 - BF 2048
// 001000 - 00CFFF 1000 - CFFF E1 - EC, 80 - BF, 80 - BF 49152
// 00D000 - 00D7FF D000 - D7FF ED - ED, 80 - 9F, 80 - BF 2048
// 00D800 - 00DFFF invalid
// 00E000 - 00FFFF E000 - FFFF EE - EF, 80 - BF, 80 - BF 8192
// 010000 - 03FFFF D800 - D8BF, DC00 - DFFF F0 - F0, 90 - BF, 80 - BF, 80 - BF 196608
// 040000 - 0FFFFF D8C0 - DBBF, DC00 - DFFF F1 - F3, 80 - BF, 80 - BF, 80 - BF 786432
// 100000 - 10FFFF DBC0 - DBFF, DC00 - DFFF F4 - F4, 80 - 8F, 80 - BF, 80 - BF 65536
static
codecvt_base::result
utf16_to_utf8(const uint16_t* frm, const uint16_t* frm_end, const uint16_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xEF);
*to_nxt++ = static_cast<uint8_t>(0xBB);
*to_nxt++ = static_cast<uint8_t>(0xBF);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint16_t wc1 = *frm_nxt;
if (wc1 > Maxcode)
return codecvt_base::error;
if (wc1 < 0x0080)
{
if (to_end-to_nxt < 1)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc1);
}
else if (wc1 < 0x0800)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xC0 | (wc1 >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc1 & 0x03F));
}
else if (wc1 < 0xD800)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xE0 | (wc1 >> 12));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc1 & 0x0FC0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc1 & 0x003F));
}
else if (wc1 < 0xDC00)
{
if (frm_end-frm_nxt < 2)
return codecvt_base::partial;
uint16_t wc2 = frm_nxt[1];
if ((wc2 & 0xFC00) != 0xDC00)
return codecvt_base::error;
if (to_end-to_nxt < 4)
return codecvt_base::partial;
if (((((wc1 & 0x03C0UL) >> 6) + 1) << 16) +
((wc1 & 0x003FUL) << 10) + (wc2 & 0x03FF) > Maxcode)
return codecvt_base::error;
++frm_nxt;
uint8_t z = ((wc1 & 0x03C0) >> 6) + 1;
*to_nxt++ = static_cast<uint8_t>(0xF0 | (z >> 2));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((z & 0x03) << 4) | ((wc1 & 0x003C) >> 2));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc1 & 0x0003) << 4) | ((wc2 & 0x03C0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc2 & 0x003F));
}
else if (wc1 < 0xE000)
{
return codecvt_base::error;
}
else
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xE0 | (wc1 >> 12));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc1 & 0x0FC0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc1 & 0x003F));
}
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf16_to_utf8(const uint32_t* frm, const uint32_t* frm_end, const uint32_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xEF);
*to_nxt++ = static_cast<uint8_t>(0xBB);
*to_nxt++ = static_cast<uint8_t>(0xBF);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint16_t wc1 = static_cast<uint16_t>(*frm_nxt);
if (wc1 > Maxcode)
return codecvt_base::error;
if (wc1 < 0x0080)
{
if (to_end-to_nxt < 1)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc1);
}
else if (wc1 < 0x0800)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xC0 | (wc1 >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc1 & 0x03F));
}
else if (wc1 < 0xD800)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xE0 | (wc1 >> 12));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc1 & 0x0FC0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc1 & 0x003F));
}
else if (wc1 < 0xDC00)
{
if (frm_end-frm_nxt < 2)
return codecvt_base::partial;
uint16_t wc2 = static_cast<uint16_t>(frm_nxt[1]);
if ((wc2 & 0xFC00) != 0xDC00)
return codecvt_base::error;
if (to_end-to_nxt < 4)
return codecvt_base::partial;
if (((((wc1 & 0x03C0UL) >> 6) + 1) << 16) +
((wc1 & 0x003FUL) << 10) + (wc2 & 0x03FF) > Maxcode)
return codecvt_base::error;
++frm_nxt;
uint8_t z = ((wc1 & 0x03C0) >> 6) + 1;
*to_nxt++ = static_cast<uint8_t>(0xF0 | (z >> 2));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((z & 0x03) << 4) | ((wc1 & 0x003C) >> 2));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc1 & 0x0003) << 4) | ((wc2 & 0x03C0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc2 & 0x003F));
}
else if (wc1 < 0xE000)
{
return codecvt_base::error;
}
else
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xE0 | (wc1 >> 12));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc1 & 0x0FC0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc1 & 0x003F));
}
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf8_to_utf16(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint16_t* to, uint16_t* to_end, uint16_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 3 && frm_nxt[0] == 0xEF && frm_nxt[1] == 0xBB &&
frm_nxt[2] == 0xBF)
frm_nxt += 3;
}
for (; frm_nxt < frm_end && to_nxt < to_end; ++to_nxt)
{
uint8_t c1 = *frm_nxt;
if (c1 > Maxcode)
return codecvt_base::error;
if (c1 < 0x80)
{
*to_nxt = static_cast<uint16_t>(c1);
++frm_nxt;
}
else if (c1 < 0xC2)
{
return codecvt_base::error;
}
else if (c1 < 0xE0)
{
if (frm_end-frm_nxt < 2)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
uint16_t t = static_cast<uint16_t>(((c1 & 0x1F) << 6) | (c2 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 2;
}
else if (c1 < 0xF0)
{
if (frm_end-frm_nxt < 3)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
switch (c1)
{
case 0xE0:
if ((c2 & 0xE0) != 0xA0)
return codecvt_base::error;
break;
case 0xED:
if ((c2 & 0xE0) != 0x80)
return codecvt_base::error;
break;
default:
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
break;
}
if ((c3 & 0xC0) != 0x80)
return codecvt_base::error;
uint16_t t = static_cast<uint16_t>(((c1 & 0x0F) << 12)
| ((c2 & 0x3F) << 6)
| (c3 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 3;
}
else if (c1 < 0xF5)
{
if (frm_end-frm_nxt < 4)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
uint8_t c4 = frm_nxt[3];
switch (c1)
{
case 0xF0:
if (!(0x90 <= c2 && c2 <= 0xBF))
return codecvt_base::error;
break;
case 0xF4:
if ((c2 & 0xF0) != 0x80)
return codecvt_base::error;
break;
default:
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
break;
}
if ((c3 & 0xC0) != 0x80 || (c4 & 0xC0) != 0x80)
return codecvt_base::error;
if (to_end-to_nxt < 2)
return codecvt_base::partial;
if ((((c1 & 7UL) << 18) +
((c2 & 0x3FUL) << 12) +
((c3 & 0x3FUL) << 6) + (c4 & 0x3F)) > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint16_t>(
0xD800
| (((((c1 & 0x07) << 2) | ((c2 & 0x30) >> 4)) - 1) << 6)
| ((c2 & 0x0F) << 2)
| ((c3 & 0x30) >> 4));
*++to_nxt = static_cast<uint16_t>(
0xDC00
| ((c3 & 0x0F) << 6)
| (c4 & 0x3F));
frm_nxt += 4;
}
else
{
return codecvt_base::error;
}
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
codecvt_base::result
utf8_to_utf16(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint32_t* to, uint32_t* to_end, uint32_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 3 && frm_nxt[0] == 0xEF && frm_nxt[1] == 0xBB &&
frm_nxt[2] == 0xBF)
frm_nxt += 3;
}
for (; frm_nxt < frm_end && to_nxt < to_end; ++to_nxt)
{
uint8_t c1 = *frm_nxt;
if (c1 > Maxcode)
return codecvt_base::error;
if (c1 < 0x80)
{
*to_nxt = static_cast<uint32_t>(c1);
++frm_nxt;
}
else if (c1 < 0xC2)
{
return codecvt_base::error;
}
else if (c1 < 0xE0)
{
if (frm_end-frm_nxt < 2)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
uint16_t t = static_cast<uint16_t>(((c1 & 0x1F) << 6) | (c2 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint32_t>(t);
frm_nxt += 2;
}
else if (c1 < 0xF0)
{
if (frm_end-frm_nxt < 3)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
switch (c1)
{
case 0xE0:
if ((c2 & 0xE0) != 0xA0)
return codecvt_base::error;
break;
case 0xED:
if ((c2 & 0xE0) != 0x80)
return codecvt_base::error;
break;
default:
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
break;
}
if ((c3 & 0xC0) != 0x80)
return codecvt_base::error;
uint16_t t = static_cast<uint16_t>(((c1 & 0x0F) << 12)
| ((c2 & 0x3F) << 6)
| (c3 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint32_t>(t);
frm_nxt += 3;
}
else if (c1 < 0xF5)
{
if (frm_end-frm_nxt < 4)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
uint8_t c4 = frm_nxt[3];
switch (c1)
{
case 0xF0:
if (!(0x90 <= c2 && c2 <= 0xBF))
return codecvt_base::error;
break;
case 0xF4:
if ((c2 & 0xF0) != 0x80)
return codecvt_base::error;
break;
default:
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
break;
}
if ((c3 & 0xC0) != 0x80 || (c4 & 0xC0) != 0x80)
return codecvt_base::error;
if (to_end-to_nxt < 2)
return codecvt_base::partial;
if ((((c1 & 7UL) << 18) +
((c2 & 0x3FUL) << 12) +
((c3 & 0x3FUL) << 6) + (c4 & 0x3F)) > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint32_t>(
0xD800
| (((((c1 & 0x07) << 2) | ((c2 & 0x30) >> 4)) - 1) << 6)
| ((c2 & 0x0F) << 2)
| ((c3 & 0x30) >> 4));
*++to_nxt = static_cast<uint32_t>(
0xDC00
| ((c3 & 0x0F) << 6)
| (c4 & 0x3F));
frm_nxt += 4;
}
else
{
return codecvt_base::error;
}
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
int
utf8_to_utf16_length(const uint8_t* frm, const uint8_t* frm_end,
size_t mx, unsigned long Maxcode = 0x10FFFF,
codecvt_mode mode = codecvt_mode(0))
{
const uint8_t* frm_nxt = frm;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 3 && frm_nxt[0] == 0xEF && frm_nxt[1] == 0xBB &&
frm_nxt[2] == 0xBF)
frm_nxt += 3;
}
for (size_t nchar16_t = 0; frm_nxt < frm_end && nchar16_t < mx; ++nchar16_t)
{
uint8_t c1 = *frm_nxt;
if (c1 > Maxcode)
break;
if (c1 < 0x80)
{
++frm_nxt;
}
else if (c1 < 0xC2)
{
break;
}
else if (c1 < 0xE0)
{
if ((frm_end-frm_nxt < 2) || (frm_nxt[1] & 0xC0) != 0x80)
break;
uint16_t t = static_cast<uint16_t>(((c1 & 0x1F) << 6) | (frm_nxt[1] & 0x3F));
if (t > Maxcode)
break;
frm_nxt += 2;
}
else if (c1 < 0xF0)
{
if (frm_end-frm_nxt < 3)
break;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
switch (c1)
{
case 0xE0:
if ((c2 & 0xE0) != 0xA0)
return static_cast<int>(frm_nxt - frm);
break;
case 0xED:
if ((c2 & 0xE0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
default:
if ((c2 & 0xC0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
}
if ((c3 & 0xC0) != 0x80)
break;
if ((((c1 & 0x0Fu) << 12) | ((c2 & 0x3Fu) << 6) | (c3 & 0x3Fu)) > Maxcode)
break;
frm_nxt += 3;
}
else if (c1 < 0xF5)
{
if (frm_end-frm_nxt < 4 || mx-nchar16_t < 2)
break;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
uint8_t c4 = frm_nxt[3];
switch (c1)
{
case 0xF0:
if (!(0x90 <= c2 && c2 <= 0xBF))
return static_cast<int>(frm_nxt - frm);
break;
case 0xF4:
if ((c2 & 0xF0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
default:
if ((c2 & 0xC0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
}
if ((c3 & 0xC0) != 0x80 || (c4 & 0xC0) != 0x80)
break;
if ((((c1 & 7UL) << 18) +
((c2 & 0x3FUL) << 12) +
((c3 & 0x3FUL) << 6) + (c4 & 0x3F)) > Maxcode)
break;
++nchar16_t;
frm_nxt += 4;
}
else
{
break;
}
}
return static_cast<int>(frm_nxt - frm);
}
static
codecvt_base::result
ucs4_to_utf8(const uint32_t* frm, const uint32_t* frm_end, const uint32_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xEF);
*to_nxt++ = static_cast<uint8_t>(0xBB);
*to_nxt++ = static_cast<uint8_t>(0xBF);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint32_t wc = *frm_nxt;
if ((wc & 0xFFFFF800) == 0x00D800 || wc > Maxcode)
return codecvt_base::error;
if (wc < 0x000080)
{
if (to_end-to_nxt < 1)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc);
}
else if (wc < 0x000800)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xC0 | (wc >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc & 0x03F));
}
else if (wc < 0x010000)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xE0 | (wc >> 12));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc & 0x0FC0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc & 0x003F));
}
else // if (wc < 0x110000)
{
if (to_end-to_nxt < 4)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xF0 | (wc >> 18));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc & 0x03F000) >> 12));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc & 0x000FC0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc & 0x00003F));
}
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf8_to_ucs4(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint32_t* to, uint32_t* to_end, uint32_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 3 && frm_nxt[0] == 0xEF && frm_nxt[1] == 0xBB &&
frm_nxt[2] == 0xBF)
frm_nxt += 3;
}
for (; frm_nxt < frm_end && to_nxt < to_end; ++to_nxt)
{
uint8_t c1 = static_cast<uint8_t>(*frm_nxt);
if (c1 < 0x80)
{
if (c1 > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint32_t>(c1);
++frm_nxt;
}
else if (c1 < 0xC2)
{
return codecvt_base::error;
}
else if (c1 < 0xE0)
{
if (frm_end-frm_nxt < 2)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
uint32_t t = static_cast<uint32_t>(((c1 & 0x1F) << 6)
| (c2 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 2;
}
else if (c1 < 0xF0)
{
if (frm_end-frm_nxt < 3)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
switch (c1)
{
case 0xE0:
if ((c2 & 0xE0) != 0xA0)
return codecvt_base::error;
break;
case 0xED:
if ((c2 & 0xE0) != 0x80)
return codecvt_base::error;
break;
default:
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
break;
}
if ((c3 & 0xC0) != 0x80)
return codecvt_base::error;
uint32_t t = static_cast<uint32_t>(((c1 & 0x0F) << 12)
| ((c2 & 0x3F) << 6)
| (c3 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 3;
}
else if (c1 < 0xF5)
{
if (frm_end-frm_nxt < 4)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
uint8_t c4 = frm_nxt[3];
switch (c1)
{
case 0xF0:
if (!(0x90 <= c2 && c2 <= 0xBF))
return codecvt_base::error;
break;
case 0xF4:
if ((c2 & 0xF0) != 0x80)
return codecvt_base::error;
break;
default:
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
break;
}
if ((c3 & 0xC0) != 0x80 || (c4 & 0xC0) != 0x80)
return codecvt_base::error;
uint32_t t = static_cast<uint32_t>(((c1 & 0x07) << 18)
| ((c2 & 0x3F) << 12)
| ((c3 & 0x3F) << 6)
| (c4 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 4;
}
else
{
return codecvt_base::error;
}
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
int
utf8_to_ucs4_length(const uint8_t* frm, const uint8_t* frm_end,
size_t mx, unsigned long Maxcode = 0x10FFFF,
codecvt_mode mode = codecvt_mode(0))
{
const uint8_t* frm_nxt = frm;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 3 && frm_nxt[0] == 0xEF && frm_nxt[1] == 0xBB &&
frm_nxt[2] == 0xBF)
frm_nxt += 3;
}
for (size_t nchar32_t = 0; frm_nxt < frm_end && nchar32_t < mx; ++nchar32_t)
{
uint8_t c1 = static_cast<uint8_t>(*frm_nxt);
if (c1 < 0x80)
{
if (c1 > Maxcode)
break;
++frm_nxt;
}
else if (c1 < 0xC2)
{
break;
}
else if (c1 < 0xE0)
{
if ((frm_end-frm_nxt < 2) || ((frm_nxt[1] & 0xC0) != 0x80))
break;
if ((((c1 & 0x1Fu) << 6) | (frm_nxt[1] & 0x3Fu)) > Maxcode)
break;
frm_nxt += 2;
}
else if (c1 < 0xF0)
{
if (frm_end-frm_nxt < 3)
break;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
switch (c1)
{
case 0xE0:
if ((c2 & 0xE0) != 0xA0)
return static_cast<int>(frm_nxt - frm);
break;
case 0xED:
if ((c2 & 0xE0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
default:
if ((c2 & 0xC0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
}
if ((c3 & 0xC0) != 0x80)
break;
if ((((c1 & 0x0Fu) << 12) | ((c2 & 0x3Fu) << 6) | (c3 & 0x3Fu)) > Maxcode)
break;
frm_nxt += 3;
}
else if (c1 < 0xF5)
{
if (frm_end-frm_nxt < 4)
break;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
uint8_t c4 = frm_nxt[3];
switch (c1)
{
case 0xF0:
if (!(0x90 <= c2 && c2 <= 0xBF))
return static_cast<int>(frm_nxt - frm);
break;
case 0xF4:
if ((c2 & 0xF0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
default:
if ((c2 & 0xC0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
}
if ((c3 & 0xC0) != 0x80 || (c4 & 0xC0) != 0x80)
break;
if ((((c1 & 0x07u) << 18) | ((c2 & 0x3Fu) << 12) |
((c3 & 0x3Fu) << 6) | (c4 & 0x3Fu)) > Maxcode)
break;
frm_nxt += 4;
}
else
{
break;
}
}
return static_cast<int>(frm_nxt - frm);
}
static
codecvt_base::result
ucs2_to_utf8(const uint16_t* frm, const uint16_t* frm_end, const uint16_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xEF);
*to_nxt++ = static_cast<uint8_t>(0xBB);
*to_nxt++ = static_cast<uint8_t>(0xBF);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint16_t wc = *frm_nxt;
if ((wc & 0xF800) == 0xD800 || wc > Maxcode)
return codecvt_base::error;
if (wc < 0x0080)
{
if (to_end-to_nxt < 1)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc);
}
else if (wc < 0x0800)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xC0 | (wc >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc & 0x03F));
}
else // if (wc <= 0xFFFF)
{
if (to_end-to_nxt < 3)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xE0 | (wc >> 12));
*to_nxt++ = static_cast<uint8_t>(0x80 | ((wc & 0x0FC0) >> 6));
*to_nxt++ = static_cast<uint8_t>(0x80 | (wc & 0x003F));
}
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf8_to_ucs2(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint16_t* to, uint16_t* to_end, uint16_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 3 && frm_nxt[0] == 0xEF && frm_nxt[1] == 0xBB &&
frm_nxt[2] == 0xBF)
frm_nxt += 3;
}
for (; frm_nxt < frm_end && to_nxt < to_end; ++to_nxt)
{
uint8_t c1 = static_cast<uint8_t>(*frm_nxt);
if (c1 < 0x80)
{
if (c1 > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint16_t>(c1);
++frm_nxt;
}
else if (c1 < 0xC2)
{
return codecvt_base::error;
}
else if (c1 < 0xE0)
{
if (frm_end-frm_nxt < 2)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
uint16_t t = static_cast<uint16_t>(((c1 & 0x1F) << 6)
| (c2 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 2;
}
else if (c1 < 0xF0)
{
if (frm_end-frm_nxt < 3)
return codecvt_base::partial;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
switch (c1)
{
case 0xE0:
if ((c2 & 0xE0) != 0xA0)
return codecvt_base::error;
break;
case 0xED:
if ((c2 & 0xE0) != 0x80)
return codecvt_base::error;
break;
default:
if ((c2 & 0xC0) != 0x80)
return codecvt_base::error;
break;
}
if ((c3 & 0xC0) != 0x80)
return codecvt_base::error;
uint16_t t = static_cast<uint16_t>(((c1 & 0x0F) << 12)
| ((c2 & 0x3F) << 6)
| (c3 & 0x3F));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 3;
}
else
{
return codecvt_base::error;
}
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
int
utf8_to_ucs2_length(const uint8_t* frm, const uint8_t* frm_end,
size_t mx, unsigned long Maxcode = 0x10FFFF,
codecvt_mode mode = codecvt_mode(0))
{
const uint8_t* frm_nxt = frm;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 3 && frm_nxt[0] == 0xEF && frm_nxt[1] == 0xBB &&
frm_nxt[2] == 0xBF)
frm_nxt += 3;
}
for (size_t nchar32_t = 0; frm_nxt < frm_end && nchar32_t < mx; ++nchar32_t)
{
uint8_t c1 = static_cast<uint8_t>(*frm_nxt);
if (c1 < 0x80)
{
if (c1 > Maxcode)
break;
++frm_nxt;
}
else if (c1 < 0xC2)
{
break;
}
else if (c1 < 0xE0)
{
if ((frm_end-frm_nxt < 2) || ((frm_nxt[1] & 0xC0) != 0x80))
break;
if ((((c1 & 0x1Fu) << 6) | (frm_nxt[1] & 0x3Fu)) > Maxcode)
break;
frm_nxt += 2;
}
else if (c1 < 0xF0)
{
if (frm_end-frm_nxt < 3)
break;
uint8_t c2 = frm_nxt[1];
uint8_t c3 = frm_nxt[2];
switch (c1)
{
case 0xE0:
if ((c2 & 0xE0) != 0xA0)
return static_cast<int>(frm_nxt - frm);
break;
case 0xED:
if ((c2 & 0xE0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
default:
if ((c2 & 0xC0) != 0x80)
return static_cast<int>(frm_nxt - frm);
break;
}
if ((c3 & 0xC0) != 0x80)
break;
if ((((c1 & 0x0Fu) << 12) | ((c2 & 0x3Fu) << 6) | (c3 & 0x3Fu)) > Maxcode)
break;
frm_nxt += 3;
}
else
{
break;
}
}
return static_cast<int>(frm_nxt - frm);
}
static
codecvt_base::result
ucs4_to_utf16be(const uint32_t* frm, const uint32_t* frm_end, const uint32_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xFE);
*to_nxt++ = static_cast<uint8_t>(0xFF);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint32_t wc = *frm_nxt;
if ((wc & 0xFFFFF800) == 0x00D800 || wc > Maxcode)
return codecvt_base::error;
if (wc < 0x010000)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc >> 8);
*to_nxt++ = static_cast<uint8_t>(wc);
}
else
{
if (to_end-to_nxt < 4)
return codecvt_base::partial;
uint16_t t = static_cast<uint16_t>(
0xD800
| ((((wc & 0x1F0000) >> 16) - 1) << 6)
| ((wc & 0x00FC00) >> 10));
*to_nxt++ = static_cast<uint8_t>(t >> 8);
*to_nxt++ = static_cast<uint8_t>(t);
t = static_cast<uint16_t>(0xDC00 | (wc & 0x03FF));
*to_nxt++ = static_cast<uint8_t>(t >> 8);
*to_nxt++ = static_cast<uint8_t>(t);
}
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf16be_to_ucs4(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint32_t* to, uint32_t* to_end, uint32_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFE && frm_nxt[1] == 0xFF)
frm_nxt += 2;
}
for (; frm_nxt < frm_end - 1 && to_nxt < to_end; ++to_nxt)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[0] << 8 | frm_nxt[1]);
if ((c1 & 0xFC00) == 0xDC00)
return codecvt_base::error;
if ((c1 & 0xFC00) != 0xD800)
{
if (c1 > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint32_t>(c1);
frm_nxt += 2;
}
else
{
if (frm_end-frm_nxt < 4)
return codecvt_base::partial;
uint16_t c2 = static_cast<uint16_t>(frm_nxt[2] << 8 | frm_nxt[3]);
if ((c2 & 0xFC00) != 0xDC00)
return codecvt_base::error;
uint32_t t = static_cast<uint32_t>(
((((c1 & 0x03C0) >> 6) + 1) << 16)
| ((c1 & 0x003F) << 10)
| (c2 & 0x03FF));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 4;
}
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
int
utf16be_to_ucs4_length(const uint8_t* frm, const uint8_t* frm_end,
size_t mx, unsigned long Maxcode = 0x10FFFF,
codecvt_mode mode = codecvt_mode(0))
{
const uint8_t* frm_nxt = frm;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFE && frm_nxt[1] == 0xFF)
frm_nxt += 2;
}
for (size_t nchar32_t = 0; frm_nxt < frm_end - 1 && nchar32_t < mx; ++nchar32_t)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[0] << 8 | frm_nxt[1]);
if ((c1 & 0xFC00) == 0xDC00)
break;
if ((c1 & 0xFC00) != 0xD800)
{
if (c1 > Maxcode)
break;
frm_nxt += 2;
}
else
{
if (frm_end-frm_nxt < 4)
break;
uint16_t c2 = static_cast<uint16_t>(frm_nxt[2] << 8 | frm_nxt[3]);
if ((c2 & 0xFC00) != 0xDC00)
break;
uint32_t t = static_cast<uint32_t>(
((((c1 & 0x03C0) >> 6) + 1) << 16)
| ((c1 & 0x003F) << 10)
| (c2 & 0x03FF));
if (t > Maxcode)
break;
frm_nxt += 4;
}
}
return static_cast<int>(frm_nxt - frm);
}
static
codecvt_base::result
ucs4_to_utf16le(const uint32_t* frm, const uint32_t* frm_end, const uint32_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end - to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xFF);
*to_nxt++ = static_cast<uint8_t>(0xFE);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint32_t wc = *frm_nxt;
if ((wc & 0xFFFFF800) == 0x00D800 || wc > Maxcode)
return codecvt_base::error;
if (wc < 0x010000)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc);
*to_nxt++ = static_cast<uint8_t>(wc >> 8);
}
else
{
if (to_end-to_nxt < 4)
return codecvt_base::partial;
uint16_t t = static_cast<uint16_t>(
0xD800
| ((((wc & 0x1F0000) >> 16) - 1) << 6)
| ((wc & 0x00FC00) >> 10));
*to_nxt++ = static_cast<uint8_t>(t);
*to_nxt++ = static_cast<uint8_t>(t >> 8);
t = static_cast<uint16_t>(0xDC00 | (wc & 0x03FF));
*to_nxt++ = static_cast<uint8_t>(t);
*to_nxt++ = static_cast<uint8_t>(t >> 8);
}
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf16le_to_ucs4(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint32_t* to, uint32_t* to_end, uint32_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFF && frm_nxt[1] == 0xFE)
frm_nxt += 2;
}
for (; frm_nxt < frm_end - 1 && to_nxt < to_end; ++to_nxt)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[1] << 8 | frm_nxt[0]);
if ((c1 & 0xFC00) == 0xDC00)
return codecvt_base::error;
if ((c1 & 0xFC00) != 0xD800)
{
if (c1 > Maxcode)
return codecvt_base::error;
*to_nxt = static_cast<uint32_t>(c1);
frm_nxt += 2;
}
else
{
if (frm_end-frm_nxt < 4)
return codecvt_base::partial;
uint16_t c2 = static_cast<uint16_t>(frm_nxt[3] << 8 | frm_nxt[2]);
if ((c2 & 0xFC00) != 0xDC00)
return codecvt_base::error;
uint32_t t = static_cast<uint32_t>(
((((c1 & 0x03C0) >> 6) + 1) << 16)
| ((c1 & 0x003F) << 10)
| (c2 & 0x03FF));
if (t > Maxcode)
return codecvt_base::error;
*to_nxt = t;
frm_nxt += 4;
}
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
int
utf16le_to_ucs4_length(const uint8_t* frm, const uint8_t* frm_end,
size_t mx, unsigned long Maxcode = 0x10FFFF,
codecvt_mode mode = codecvt_mode(0))
{
const uint8_t* frm_nxt = frm;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFF && frm_nxt[1] == 0xFE)
frm_nxt += 2;
}
for (size_t nchar32_t = 0; frm_nxt < frm_end - 1 && nchar32_t < mx; ++nchar32_t)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[1] << 8 | frm_nxt[0]);
if ((c1 & 0xFC00) == 0xDC00)
break;
if ((c1 & 0xFC00) != 0xD800)
{
if (c1 > Maxcode)
break;
frm_nxt += 2;
}
else
{
if (frm_end-frm_nxt < 4)
break;
uint16_t c2 = static_cast<uint16_t>(frm_nxt[3] << 8 | frm_nxt[2]);
if ((c2 & 0xFC00) != 0xDC00)
break;
uint32_t t = static_cast<uint32_t>(
((((c1 & 0x03C0) >> 6) + 1) << 16)
| ((c1 & 0x003F) << 10)
| (c2 & 0x03FF));
if (t > Maxcode)
break;
frm_nxt += 4;
}
}
return static_cast<int>(frm_nxt - frm);
}
static
codecvt_base::result
ucs2_to_utf16be(const uint16_t* frm, const uint16_t* frm_end, const uint16_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xFE);
*to_nxt++ = static_cast<uint8_t>(0xFF);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint16_t wc = *frm_nxt;
if ((wc & 0xF800) == 0xD800 || wc > Maxcode)
return codecvt_base::error;
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc >> 8);
*to_nxt++ = static_cast<uint8_t>(wc);
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf16be_to_ucs2(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint16_t* to, uint16_t* to_end, uint16_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFE && frm_nxt[1] == 0xFF)
frm_nxt += 2;
}
for (; frm_nxt < frm_end - 1 && to_nxt < to_end; ++to_nxt)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[0] << 8 | frm_nxt[1]);
if ((c1 & 0xF800) == 0xD800 || c1 > Maxcode)
return codecvt_base::error;
*to_nxt = c1;
frm_nxt += 2;
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
int
utf16be_to_ucs2_length(const uint8_t* frm, const uint8_t* frm_end,
size_t mx, unsigned long Maxcode = 0x10FFFF,
codecvt_mode mode = codecvt_mode(0))
{
const uint8_t* frm_nxt = frm;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFE && frm_nxt[1] == 0xFF)
frm_nxt += 2;
}
for (size_t nchar16_t = 0; frm_nxt < frm_end - 1 && nchar16_t < mx; ++nchar16_t)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[0] << 8 | frm_nxt[1]);
if ((c1 & 0xF800) == 0xD800 || c1 > Maxcode)
break;
frm_nxt += 2;
}
return static_cast<int>(frm_nxt - frm);
}
static
codecvt_base::result
ucs2_to_utf16le(const uint16_t* frm, const uint16_t* frm_end, const uint16_t*& frm_nxt,
uint8_t* to, uint8_t* to_end, uint8_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & generate_header)
{
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(0xFF);
*to_nxt++ = static_cast<uint8_t>(0xFE);
}
for (; frm_nxt < frm_end; ++frm_nxt)
{
uint16_t wc = *frm_nxt;
if ((wc & 0xF800) == 0xD800 || wc > Maxcode)
return codecvt_base::error;
if (to_end-to_nxt < 2)
return codecvt_base::partial;
*to_nxt++ = static_cast<uint8_t>(wc);
*to_nxt++ = static_cast<uint8_t>(wc >> 8);
}
return codecvt_base::ok;
}
static
codecvt_base::result
utf16le_to_ucs2(const uint8_t* frm, const uint8_t* frm_end, const uint8_t*& frm_nxt,
uint16_t* to, uint16_t* to_end, uint16_t*& to_nxt,
unsigned long Maxcode = 0x10FFFF, codecvt_mode mode = codecvt_mode(0))
{
frm_nxt = frm;
to_nxt = to;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFF && frm_nxt[1] == 0xFE)
frm_nxt += 2;
}
for (; frm_nxt < frm_end - 1 && to_nxt < to_end; ++to_nxt)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[1] << 8 | frm_nxt[0]);
if ((c1 & 0xF800) == 0xD800 || c1 > Maxcode)
return codecvt_base::error;
*to_nxt = c1;
frm_nxt += 2;
}
return frm_nxt < frm_end ? codecvt_base::partial : codecvt_base::ok;
}
static
int
utf16le_to_ucs2_length(const uint8_t* frm, const uint8_t* frm_end,
size_t mx, unsigned long Maxcode = 0x10FFFF,
codecvt_mode mode = codecvt_mode(0))
{
const uint8_t* frm_nxt = frm;
frm_nxt = frm;
if (mode & consume_header)
{
if (frm_end-frm_nxt >= 2 && frm_nxt[0] == 0xFF && frm_nxt[1] == 0xFE)
frm_nxt += 2;
}
for (size_t nchar16_t = 0; frm_nxt < frm_end - 1 && nchar16_t < mx; ++nchar16_t)
{
uint16_t c1 = static_cast<uint16_t>(frm_nxt[1] << 8 | frm_nxt[0]);
if ((c1 & 0xF800) == 0xD800 || c1 > Maxcode)
break;
frm_nxt += 2;
}
return static_cast<int>(frm_nxt - frm);
}
// template <> class codecvt<char16_t, char, mbstate_t>
locale::id codecvt<char16_t, char, mbstate_t>::id;
codecvt<char16_t, char, mbstate_t>::~codecvt()
{
}
codecvt<char16_t, char, mbstate_t>::result
codecvt<char16_t, char, mbstate_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint16_t* _frm = reinterpret_cast<const uint16_t*>(frm);
const uint16_t* _frm_end = reinterpret_cast<const uint16_t*>(frm_end);
const uint16_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = utf16_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
codecvt<char16_t, char, mbstate_t>::result
codecvt<char16_t, char, mbstate_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint16_t* _to = reinterpret_cast<uint16_t*>(to);
uint16_t* _to_end = reinterpret_cast<uint16_t*>(to_end);
uint16_t* _to_nxt = _to;
result r = utf8_to_utf16(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
codecvt<char16_t, char, mbstate_t>::result
codecvt<char16_t, char, mbstate_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
codecvt<char16_t, char, mbstate_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
codecvt<char16_t, char, mbstate_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
codecvt<char16_t, char, mbstate_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_utf16_length(_frm, _frm_end, mx);
}
int
codecvt<char16_t, char, mbstate_t>::do_max_length() const _NOEXCEPT
{
return 4;
}
// template <> class codecvt<char32_t, char, mbstate_t>
locale::id codecvt<char32_t, char, mbstate_t>::id;
codecvt<char32_t, char, mbstate_t>::~codecvt()
{
}
codecvt<char32_t, char, mbstate_t>::result
codecvt<char32_t, char, mbstate_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs4_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
codecvt<char32_t, char, mbstate_t>::result
codecvt<char32_t, char, mbstate_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf8_to_ucs4(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
codecvt<char32_t, char, mbstate_t>::result
codecvt<char32_t, char, mbstate_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
codecvt<char32_t, char, mbstate_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
codecvt<char32_t, char, mbstate_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
codecvt<char32_t, char, mbstate_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_ucs4_length(_frm, _frm_end, mx);
}
int
codecvt<char32_t, char, mbstate_t>::do_max_length() const _NOEXCEPT
{
return 4;
}
// __codecvt_utf8<wchar_t>
__codecvt_utf8<wchar_t>::result
__codecvt_utf8<wchar_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
#if defined(_LIBCPP_SHORT_WCHAR)
const uint16_t* _frm = reinterpret_cast<const uint16_t*>(frm);
const uint16_t* _frm_end = reinterpret_cast<const uint16_t*>(frm_end);
const uint16_t* _frm_nxt = _frm;
#else
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
#endif
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
#if defined(_LIBCPP_SHORT_WCHAR)
result r = ucs2_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
#else
result r = ucs4_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
#endif
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8<wchar_t>::result
__codecvt_utf8<wchar_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
#if defined(_LIBCPP_SHORT_WCHAR)
uint16_t* _to = reinterpret_cast<uint16_t*>(to);
uint16_t* _to_end = reinterpret_cast<uint16_t*>(to_end);
uint16_t* _to_nxt = _to;
result r = utf8_to_ucs2(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
#else
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf8_to_ucs4(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
#endif
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8<wchar_t>::result
__codecvt_utf8<wchar_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf8<wchar_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf8<wchar_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf8<wchar_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_ucs4_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf8<wchar_t>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 7;
return 4;
}
// __codecvt_utf8<char16_t>
__codecvt_utf8<char16_t>::result
__codecvt_utf8<char16_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint16_t* _frm = reinterpret_cast<const uint16_t*>(frm);
const uint16_t* _frm_end = reinterpret_cast<const uint16_t*>(frm_end);
const uint16_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs2_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8<char16_t>::result
__codecvt_utf8<char16_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint16_t* _to = reinterpret_cast<uint16_t*>(to);
uint16_t* _to_end = reinterpret_cast<uint16_t*>(to_end);
uint16_t* _to_nxt = _to;
result r = utf8_to_ucs2(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8<char16_t>::result
__codecvt_utf8<char16_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf8<char16_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf8<char16_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf8<char16_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_ucs2_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf8<char16_t>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 6;
return 3;
}
// __codecvt_utf8<char32_t>
__codecvt_utf8<char32_t>::result
__codecvt_utf8<char32_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs4_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8<char32_t>::result
__codecvt_utf8<char32_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf8_to_ucs4(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8<char32_t>::result
__codecvt_utf8<char32_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf8<char32_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf8<char32_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf8<char32_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_ucs4_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf8<char32_t>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 7;
return 4;
}
// __codecvt_utf16<wchar_t, false>
__codecvt_utf16<wchar_t, false>::result
__codecvt_utf16<wchar_t, false>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs4_to_utf16be(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<wchar_t, false>::result
__codecvt_utf16<wchar_t, false>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf16be_to_ucs4(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<wchar_t, false>::result
__codecvt_utf16<wchar_t, false>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf16<wchar_t, false>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf16<wchar_t, false>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf16<wchar_t, false>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf16be_to_ucs4_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf16<wchar_t, false>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 6;
return 4;
}
// __codecvt_utf16<wchar_t, true>
__codecvt_utf16<wchar_t, true>::result
__codecvt_utf16<wchar_t, true>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs4_to_utf16le(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<wchar_t, true>::result
__codecvt_utf16<wchar_t, true>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf16le_to_ucs4(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<wchar_t, true>::result
__codecvt_utf16<wchar_t, true>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf16<wchar_t, true>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf16<wchar_t, true>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf16<wchar_t, true>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf16le_to_ucs4_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf16<wchar_t, true>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 6;
return 4;
}
// __codecvt_utf16<char16_t, false>
__codecvt_utf16<char16_t, false>::result
__codecvt_utf16<char16_t, false>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint16_t* _frm = reinterpret_cast<const uint16_t*>(frm);
const uint16_t* _frm_end = reinterpret_cast<const uint16_t*>(frm_end);
const uint16_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs2_to_utf16be(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char16_t, false>::result
__codecvt_utf16<char16_t, false>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint16_t* _to = reinterpret_cast<uint16_t*>(to);
uint16_t* _to_end = reinterpret_cast<uint16_t*>(to_end);
uint16_t* _to_nxt = _to;
result r = utf16be_to_ucs2(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char16_t, false>::result
__codecvt_utf16<char16_t, false>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf16<char16_t, false>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf16<char16_t, false>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf16<char16_t, false>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf16be_to_ucs2_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf16<char16_t, false>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 4;
return 2;
}
// __codecvt_utf16<char16_t, true>
__codecvt_utf16<char16_t, true>::result
__codecvt_utf16<char16_t, true>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint16_t* _frm = reinterpret_cast<const uint16_t*>(frm);
const uint16_t* _frm_end = reinterpret_cast<const uint16_t*>(frm_end);
const uint16_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs2_to_utf16le(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char16_t, true>::result
__codecvt_utf16<char16_t, true>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint16_t* _to = reinterpret_cast<uint16_t*>(to);
uint16_t* _to_end = reinterpret_cast<uint16_t*>(to_end);
uint16_t* _to_nxt = _to;
result r = utf16le_to_ucs2(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char16_t, true>::result
__codecvt_utf16<char16_t, true>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf16<char16_t, true>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf16<char16_t, true>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf16<char16_t, true>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf16le_to_ucs2_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf16<char16_t, true>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 4;
return 2;
}
// __codecvt_utf16<char32_t, false>
__codecvt_utf16<char32_t, false>::result
__codecvt_utf16<char32_t, false>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs4_to_utf16be(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char32_t, false>::result
__codecvt_utf16<char32_t, false>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf16be_to_ucs4(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char32_t, false>::result
__codecvt_utf16<char32_t, false>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf16<char32_t, false>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf16<char32_t, false>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf16<char32_t, false>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf16be_to_ucs4_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf16<char32_t, false>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 6;
return 4;
}
// __codecvt_utf16<char32_t, true>
__codecvt_utf16<char32_t, true>::result
__codecvt_utf16<char32_t, true>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = ucs4_to_utf16le(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char32_t, true>::result
__codecvt_utf16<char32_t, true>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf16le_to_ucs4(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf16<char32_t, true>::result
__codecvt_utf16<char32_t, true>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf16<char32_t, true>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf16<char32_t, true>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf16<char32_t, true>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf16le_to_ucs4_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf16<char32_t, true>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 6;
return 4;
}
// __codecvt_utf8_utf16<wchar_t>
__codecvt_utf8_utf16<wchar_t>::result
__codecvt_utf8_utf16<wchar_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = utf16_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8_utf16<wchar_t>::result
__codecvt_utf8_utf16<wchar_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf8_to_utf16(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8_utf16<wchar_t>::result
__codecvt_utf8_utf16<wchar_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf8_utf16<wchar_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf8_utf16<wchar_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf8_utf16<wchar_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_utf16_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf8_utf16<wchar_t>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 7;
return 4;
}
// __codecvt_utf8_utf16<char16_t>
__codecvt_utf8_utf16<char16_t>::result
__codecvt_utf8_utf16<char16_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint16_t* _frm = reinterpret_cast<const uint16_t*>(frm);
const uint16_t* _frm_end = reinterpret_cast<const uint16_t*>(frm_end);
const uint16_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = utf16_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8_utf16<char16_t>::result
__codecvt_utf8_utf16<char16_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint16_t* _to = reinterpret_cast<uint16_t*>(to);
uint16_t* _to_end = reinterpret_cast<uint16_t*>(to_end);
uint16_t* _to_nxt = _to;
result r = utf8_to_utf16(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8_utf16<char16_t>::result
__codecvt_utf8_utf16<char16_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf8_utf16<char16_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf8_utf16<char16_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf8_utf16<char16_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_utf16_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf8_utf16<char16_t>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 7;
return 4;
}
// __codecvt_utf8_utf16<char32_t>
__codecvt_utf8_utf16<char32_t>::result
__codecvt_utf8_utf16<char32_t>::do_out(state_type&,
const intern_type* frm, const intern_type* frm_end, const intern_type*& frm_nxt,
extern_type* to, extern_type* to_end, extern_type*& to_nxt) const
{
const uint32_t* _frm = reinterpret_cast<const uint32_t*>(frm);
const uint32_t* _frm_end = reinterpret_cast<const uint32_t*>(frm_end);
const uint32_t* _frm_nxt = _frm;
uint8_t* _to = reinterpret_cast<uint8_t*>(to);
uint8_t* _to_end = reinterpret_cast<uint8_t*>(to_end);
uint8_t* _to_nxt = _to;
result r = utf16_to_utf8(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8_utf16<char32_t>::result
__codecvt_utf8_utf16<char32_t>::do_in(state_type&,
const extern_type* frm, const extern_type* frm_end, const extern_type*& frm_nxt,
intern_type* to, intern_type* to_end, intern_type*& to_nxt) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
const uint8_t* _frm_nxt = _frm;
uint32_t* _to = reinterpret_cast<uint32_t*>(to);
uint32_t* _to_end = reinterpret_cast<uint32_t*>(to_end);
uint32_t* _to_nxt = _to;
result r = utf8_to_utf16(_frm, _frm_end, _frm_nxt, _to, _to_end, _to_nxt,
_Maxcode_, _Mode_);
frm_nxt = frm + (_frm_nxt - _frm);
to_nxt = to + (_to_nxt - _to);
return r;
}
__codecvt_utf8_utf16<char32_t>::result
__codecvt_utf8_utf16<char32_t>::do_unshift(state_type&,
extern_type* to, extern_type*, extern_type*& to_nxt) const
{
to_nxt = to;
return noconv;
}
int
__codecvt_utf8_utf16<char32_t>::do_encoding() const _NOEXCEPT
{
return 0;
}
bool
__codecvt_utf8_utf16<char32_t>::do_always_noconv() const _NOEXCEPT
{
return false;
}
int
__codecvt_utf8_utf16<char32_t>::do_length(state_type&,
const extern_type* frm, const extern_type* frm_end, size_t mx) const
{
const uint8_t* _frm = reinterpret_cast<const uint8_t*>(frm);
const uint8_t* _frm_end = reinterpret_cast<const uint8_t*>(frm_end);
return utf8_to_utf16_length(_frm, _frm_end, mx, _Maxcode_, _Mode_);
}
int
__codecvt_utf8_utf16<char32_t>::do_max_length() const _NOEXCEPT
{
if (_Mode_ & consume_header)
return 7;
return 4;
}
// __narrow_to_utf8<16>
__narrow_to_utf8<16>::~__narrow_to_utf8()
{
}
// __narrow_to_utf8<32>
__narrow_to_utf8<32>::~__narrow_to_utf8()
{
}
// __widen_from_utf8<16>
__widen_from_utf8<16>::~__widen_from_utf8()
{
}
// __widen_from_utf8<32>
__widen_from_utf8<32>::~__widen_from_utf8()
{
}
bool __checked_string_to_wchar_convert(wchar_t& dest,
const char* ptr,
locale_t loc) {
if (*ptr == '\0')
return false;
mbstate_t mb = {};
wchar_t out;
size_t ret = __libcpp_mbrtowc_l(&out, ptr, strlen(ptr), &mb, loc);
if (ret == static_cast<size_t>(-1) || ret == static_cast<size_t>(-2)) {
return false;
}
dest = out;
return true;
}
bool __checked_string_to_char_convert(char& dest,
const char* ptr,
locale_t __loc) {
if (*ptr == '\0')
return false;
if (!ptr[1]) {
dest = *ptr;
return true;
}
// First convert the MBS into a wide char then attempt to narrow it using
// wctob_l.
wchar_t wout;
if (!__checked_string_to_wchar_convert(wout, ptr, __loc))
return false;
int res;
if ((res = __libcpp_wctob_l(wout, __loc)) != char_traits<char>::eof()) {
dest = res;
return true;
}
// FIXME: Work around specific multibyte sequences that we can reasonable
// translate into a different single byte.
switch (wout) {
case L'\u202F': // narrow non-breaking space
case L'\u00A0': // non-breaking space
dest = ' ';
return true;
default:
return false;
}
_LIBCPP_UNREACHABLE();
}
// numpunct<char> && numpunct<wchar_t>
locale::id numpunct< char >::id;
locale::id numpunct<wchar_t>::id;
numpunct<char>::numpunct(size_t refs)
: locale::facet(refs),
__decimal_point_('.'),
__thousands_sep_(',')
{
}
numpunct<wchar_t>::numpunct(size_t refs)
: locale::facet(refs),
__decimal_point_(L'.'),
__thousands_sep_(L',')
{
}
numpunct<char>::~numpunct()
{
}
numpunct<wchar_t>::~numpunct()
{
}
char numpunct< char >::do_decimal_point() const {return __decimal_point_;}
wchar_t numpunct<wchar_t>::do_decimal_point() const {return __decimal_point_;}
char numpunct< char >::do_thousands_sep() const {return __thousands_sep_;}
wchar_t numpunct<wchar_t>::do_thousands_sep() const {return __thousands_sep_;}
string numpunct< char >::do_grouping() const {return __grouping_;}
string numpunct<wchar_t>::do_grouping() const {return __grouping_;}
string numpunct< char >::do_truename() const {return "true";}
wstring numpunct<wchar_t>::do_truename() const {return L"true";}
string numpunct< char >::do_falsename() const {return "false";}
wstring numpunct<wchar_t>::do_falsename() const {return L"false";}
// numpunct_byname<char>
numpunct_byname<char>::numpunct_byname(const char* nm, size_t refs)
: numpunct<char>(refs)
{
__init(nm);
}
numpunct_byname<char>::numpunct_byname(const string& nm, size_t refs)
: numpunct<char>(refs)
{
__init(nm.c_str());
}
numpunct_byname<char>::~numpunct_byname()
{
}
void
numpunct_byname<char>::__init(const char* nm)
{
if (strcmp(nm, "C") != 0)
{
__libcpp_unique_locale loc(nm);
if (!loc)
__throw_runtime_error("numpunct_byname<char>::numpunct_byname"
" failed to construct for " + string(nm));
lconv* lc = __libcpp_localeconv_l(loc.get());
__checked_string_to_char_convert(__decimal_point_, lc->decimal_point,
loc.get());
__checked_string_to_char_convert(__thousands_sep_, lc->thousands_sep,
loc.get());
__grouping_ = lc->grouping;
// localization for truename and falsename is not available
}
}
// numpunct_byname<wchar_t>
numpunct_byname<wchar_t>::numpunct_byname(const char* nm, size_t refs)
: numpunct<wchar_t>(refs)
{
__init(nm);
}
numpunct_byname<wchar_t>::numpunct_byname(const string& nm, size_t refs)
: numpunct<wchar_t>(refs)
{
__init(nm.c_str());
}
numpunct_byname<wchar_t>::~numpunct_byname()
{
}
void
numpunct_byname<wchar_t>::__init(const char* nm)
{
if (strcmp(nm, "C") != 0)
{
__libcpp_unique_locale loc(nm);
if (!loc)
__throw_runtime_error("numpunct_byname<wchar_t>::numpunct_byname"
" failed to construct for " + string(nm));
lconv* lc = __libcpp_localeconv_l(loc.get());
__checked_string_to_wchar_convert(__decimal_point_, lc->decimal_point,
loc.get());
__checked_string_to_wchar_convert(__thousands_sep_, lc->thousands_sep,
loc.get());
__grouping_ = lc->grouping;
// localization for truename and falsename is not available
}
}
// num_get helpers
int
__num_get_base::__get_base(ios_base& iob)
{
ios_base::fmtflags __basefield = iob.flags() & ios_base::basefield;
if (__basefield == ios_base::oct)
return 8;
else if (__basefield == ios_base::hex)
return 16;
else if (__basefield == 0)
return 0;
return 10;
}
const char __num_get_base::__src[33] = "0123456789abcdefABCDEFxX+-pPiInN";
void
__check_grouping(const string& __grouping, unsigned* __g, unsigned* __g_end,
ios_base::iostate& __err)
{
// if the grouping pattern is empty _or_ there are no grouping bits, then do nothing
// we always have at least a single entry in [__g, __g_end); the end of the input sequence
if (__grouping.size() != 0 && __g_end - __g > 1)
{
reverse(__g, __g_end);
const char* __ig = __grouping.data();
const char* __eg = __ig + __grouping.size();
for (unsigned* __r = __g; __r < __g_end-1; ++__r)
{
if (0 < *__ig && *__ig < numeric_limits<char>::max())
{
if (static_cast<unsigned>(*__ig) != *__r)
{
__err = ios_base::failbit;
return;
}
}
if (__eg - __ig > 1)
++__ig;
}
if (0 < *__ig && *__ig < numeric_limits<char>::max())
{
if (static_cast<unsigned>(*__ig) < __g_end[-1] || __g_end[-1] == 0)
__err = ios_base::failbit;
}
}
}
void
__num_put_base::__format_int(char* __fmtp, const char* __len, bool __signd,
ios_base::fmtflags __flags)
{
if (__flags & ios_base::showpos)
*__fmtp++ = '+';
if (__flags & ios_base::showbase)
*__fmtp++ = '#';
while(*__len)
*__fmtp++ = *__len++;
if ((__flags & ios_base::basefield) == ios_base::oct)
*__fmtp = 'o';
else if ((__flags & ios_base::basefield) == ios_base::hex)
{
if (__flags & ios_base::uppercase)
*__fmtp = 'X';
else
*__fmtp = 'x';
}
else if (__signd)
*__fmtp = 'd';
else
*__fmtp = 'u';
}
bool
__num_put_base::__format_float(char* __fmtp, const char* __len,
ios_base::fmtflags __flags)
{
bool specify_precision = true;
if (__flags & ios_base::showpos)
*__fmtp++ = '+';
if (__flags & ios_base::showpoint)
*__fmtp++ = '#';
ios_base::fmtflags floatfield = __flags & ios_base::floatfield;
bool uppercase = (__flags & ios_base::uppercase) != 0;
if (floatfield == (ios_base::fixed | ios_base::scientific))
specify_precision = false;
else
{
*__fmtp++ = '.';
*__fmtp++ = '*';
}
while(*__len)
*__fmtp++ = *__len++;
if (floatfield == ios_base::fixed)
{
if (uppercase)
*__fmtp = 'F';
else
*__fmtp = 'f';
}
else if (floatfield == ios_base::scientific)
{
if (uppercase)
*__fmtp = 'E';
else
*__fmtp = 'e';
}
else if (floatfield == (ios_base::fixed | ios_base::scientific))
{
if (uppercase)
*__fmtp = 'A';
else
*__fmtp = 'a';
}
else
{
if (uppercase)
*__fmtp = 'G';
else
*__fmtp = 'g';
}
return specify_precision;
}
char*
__num_put_base::__identify_padding(char* __nb, char* __ne,
const ios_base& __iob)
{
switch (__iob.flags() & ios_base::adjustfield)
{
case ios_base::internal:
if (__nb[0] == '-' || __nb[0] == '+')
return __nb+1;
if (__ne - __nb >= 2 && __nb[0] == '0'
&& (__nb[1] == 'x' || __nb[1] == 'X'))
return __nb+2;
break;
case ios_base::left:
return __ne;
case ios_base::right:
default:
break;
}
return __nb;
}
void __do_nothing(void*) {}
void __throw_runtime_error(const char* msg)
{
#ifndef _LIBCPP_NO_EXCEPTIONS
throw runtime_error(msg);
#else
(void)msg;
_VSTD::abort();
#endif
}
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS collate<char>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS collate<wchar_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS num_get<char>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS num_get<wchar_t>;
template struct _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS __num_get<char>;
template struct _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS __num_get<wchar_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS num_put<char>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS num_put<wchar_t>;
template struct _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS __num_put<char>;
template struct _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS __num_put<wchar_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS messages<char>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS messages<wchar_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS messages_byname<char>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS messages_byname<wchar_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS codecvt_byname<char, char, mbstate_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS codecvt_byname<wchar_t, char, mbstate_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS codecvt_byname<char16_t, char, mbstate_t>;
template class _LIBCPP_CLASS_TEMPLATE_INSTANTIATION_VIS codecvt_byname<char32_t, char, mbstate_t>;
_LIBCPP_END_NAMESPACE_STD
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