// 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 "../../include/fpdftext/fpdf_text.h" | |
extern const FX_WCHAR g_UnicodeData_Normalization[65536]; | |
extern const FX_WCHAR g_UnicodeData_Normalization_Map1[5376]; | |
extern const FX_WCHAR g_UnicodeData_Normalization_Map2[1734]; | |
extern const FX_WCHAR g_UnicodeData_Normalization_Map3[1164]; | |
extern const FX_WCHAR g_UnicodeData_Normalization_Map4[488]; | |
FX_LPCWSTR g_UnicodeData_Normalization_Maps[5] = { | |
NULL, | |
g_UnicodeData_Normalization_Map1, | |
g_UnicodeData_Normalization_Map2, | |
g_UnicodeData_Normalization_Map3, | |
g_UnicodeData_Normalization_Map4 | |
}; | |
FX_STRSIZE FX_Unicode_GetNormalization(FX_WCHAR wch, FX_LPWSTR pDst) | |
{ | |
wch = wch & 0xFFFF; | |
FX_WCHAR wFind = g_UnicodeData_Normalization[wch]; | |
if (!wFind) { | |
if (pDst) { | |
*pDst = wch; | |
} | |
return 1; | |
} | |
if(wFind >= 0x8000) { | |
wch = wFind - 0x8000; | |
wFind = 1; | |
} else { | |
wch = wFind & 0x0FFF; | |
wFind >>= 12; | |
} | |
FX_LPCWSTR pMap = g_UnicodeData_Normalization_Maps[wFind]; | |
if (pMap == g_UnicodeData_Normalization_Map4) { | |
pMap = g_UnicodeData_Normalization_Map4 + wch; | |
wFind = (FX_WCHAR)(*pMap ++); | |
} else { | |
pMap += wch; | |
} | |
if (pDst) { | |
FX_WCHAR n = wFind; | |
while (n --) { | |
*pDst ++ = *pMap ++; | |
} | |
} | |
return (FX_STRSIZE)wFind; | |
} | |
FX_STRSIZE FX_WideString_GetNormalization(FX_WSTR wsSrc, FX_LPWSTR pDst) | |
{ | |
FX_STRSIZE nCount = 0; | |
for (FX_STRSIZE len = 0; len < wsSrc.GetLength(); len ++) { | |
FX_WCHAR wch = wsSrc.GetAt(len); | |
if(pDst) { | |
nCount += FX_Unicode_GetNormalization(wch, pDst + nCount); | |
} else { | |
nCount += FX_Unicode_GetNormalization(wch, pDst); | |
} | |
} | |
return nCount; | |
} | |
FX_STRSIZE FX_WideString_GetNormalization(FX_WSTR wsSrc, CFX_WideString &wsDst) | |
{ | |
FX_STRSIZE nLen = FX_WideString_GetNormalization(wsSrc, (FX_LPWSTR)NULL); | |
if (!nLen) { | |
return 0; | |
} | |
FX_LPWSTR pBuf = wsDst.GetBuffer(nLen); | |
FX_WideString_GetNormalization(wsSrc, pBuf); | |
wsDst.ReleaseBuffer(nLen); | |
return nLen; | |
} |