blob: b8e8eb98d3a4e7161c616c4ade66f8f36b2fae0e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
// 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/fpdftext/unicodenormalization.h"
#include "core/fpdftext/unicodenormalizationdata.h"
#include "core/include/fxcrt/fx_string.h"
namespace {
const FX_WCHAR* const g_UnicodeData_Normalization_Maps[5] = {
nullptr, g_UnicodeData_Normalization_Map1, g_UnicodeData_Normalization_Map2,
g_UnicodeData_Normalization_Map3, g_UnicodeData_Normalization_Map4};
} // namespace
FX_STRSIZE FX_Unicode_GetNormalization(FX_WCHAR wch, FX_WCHAR* 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;
}
const FX_WCHAR* 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;
}
|
