diff options
Diffstat (limited to 'core/src/fxcrt/fx_basic_utf.cpp')
-rw-r--r-- | core/src/fxcrt/fx_basic_utf.cpp | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/core/src/fxcrt/fx_basic_utf.cpp b/core/src/fxcrt/fx_basic_utf.cpp deleted file mode 100644 index 3625feb130..0000000000 --- a/core/src/fxcrt/fx_basic_utf.cpp +++ /dev/null @@ -1,86 +0,0 @@ -// Copyright 2014 PDFium Authors. All rights reserved. -// Use of this source code is governed by a BSD-style license that can be -// found in the LICENSE file. - -// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com - -#include "core/include/fxcrt/fx_basic.h" - -void CFX_UTF8Decoder::Clear() { - m_Buffer.Clear(); - m_PendingBytes = 0; -} -void CFX_UTF8Decoder::AppendChar(FX_DWORD ch) { - m_Buffer.AppendChar((FX_WCHAR)ch); -} -void CFX_UTF8Decoder::Input(uint8_t byte) { - if (byte < 0x80) { - m_PendingBytes = 0; - m_Buffer.AppendChar(byte); - } else if (byte < 0xc0) { - if (m_PendingBytes == 0) { - return; - } - m_PendingBytes--; - m_PendingChar |= (byte & 0x3f) << (m_PendingBytes * 6); - if (m_PendingBytes == 0) { - AppendChar(m_PendingChar); - } - } else if (byte < 0xe0) { - m_PendingBytes = 1; - m_PendingChar = (byte & 0x1f) << 6; - } else if (byte < 0xf0) { - m_PendingBytes = 2; - m_PendingChar = (byte & 0x0f) << 12; - } else if (byte < 0xf8) { - m_PendingBytes = 3; - m_PendingChar = (byte & 0x07) << 18; - } else if (byte < 0xfc) { - m_PendingBytes = 4; - m_PendingChar = (byte & 0x03) << 24; - } else if (byte < 0xfe) { - m_PendingBytes = 5; - m_PendingChar = (byte & 0x01) << 30; - } -} -void CFX_UTF8Encoder::Input(FX_WCHAR unicode) { - if ((FX_DWORD)unicode < 0x80) { - m_Buffer.AppendChar(unicode); - } else { - if ((FX_DWORD)unicode >= 0x80000000) { - return; - } - int nbytes = 0; - if ((FX_DWORD)unicode < 0x800) { - nbytes = 2; - } else if ((FX_DWORD)unicode < 0x10000) { - nbytes = 3; - } else if ((FX_DWORD)unicode < 0x200000) { - nbytes = 4; - } else if ((FX_DWORD)unicode < 0x4000000) { - nbytes = 5; - } else { - nbytes = 6; - } - static uint8_t prefix[] = {0xc0, 0xe0, 0xf0, 0xf8, 0xfc}; - int order = 1 << ((nbytes - 1) * 6); - int code = unicode; - m_Buffer.AppendChar(prefix[nbytes - 2] | (code / order)); - for (int i = 0; i < nbytes - 1; i++) { - code = code % order; - order >>= 6; - m_Buffer.AppendChar(0x80 | (code / order)); - } - } -} -CFX_ByteString FX_UTF8Encode(const FX_WCHAR* pwsStr, FX_STRSIZE len) { - FXSYS_assert(pwsStr); - if (len < 0) { - len = FXSYS_wcslen(pwsStr); - } - CFX_UTF8Encoder encoder; - while (len-- > 0) { - encoder.Input(*pwsStr++); - } - return encoder.GetResult(); -} |