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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*/
#include "sal/config.h"
#include "rtl/textcvt.h"
#include "sal/types.h"
#include "handleundefinedunicodetotextchar.hxx"
#include "tenchelp.hxx"
namespace {
bool ImplIsUnicodeIgnoreChar(sal_Unicode c, sal_uInt32 nFlags)
{
return
((nFlags & RTL_UNICODETOTEXT_FLAGS_NONSPACING_IGNORE) != 0
&& ImplIsZeroWidth(c))
|| ((nFlags & RTL_UNICODETOTEXT_FLAGS_CONTROL_IGNORE) != 0
&& ImplIsControlOrFormat(c))
|| ((nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_IGNORE) != 0
&& ImplIsPrivateUse(c));
}
bool ImplGetUndefinedAsciiMultiByte(sal_uInt32 nFlags,
char * pBuf,
sal_Size nMaxLen)
{
if (nMaxLen == 0)
return false;
switch (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK)
{
case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_0:
*pBuf = 0x00;
break;
case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_QUESTIONMARK:
default: /* RTL_UNICODETOTEXT_FLAGS_UNDEFINED_DEFAULT */
*pBuf = 0x3F;
break;
case RTL_UNICODETOTEXT_FLAGS_UNDEFINED_UNDERLINE:
*pBuf = 0x5F;
break;
}
return true;
}
bool ImplGetInvalidAsciiMultiByte(sal_uInt32 nFlags,
char * pBuf,
sal_Size nMaxLen)
{
if (nMaxLen == 0)
return false;
switch (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK)
{
case RTL_UNICODETOTEXT_FLAGS_INVALID_0:
*pBuf = 0x00;
break;
case RTL_UNICODETOTEXT_FLAGS_INVALID_QUESTIONMARK:
default: /* RTL_UNICODETOTEXT_FLAGS_INVALID_DEFAULT */
*pBuf = 0x3F;
break;
case RTL_UNICODETOTEXT_FLAGS_INVALID_UNDERLINE:
*pBuf = 0x5F;
break;
}
return true;
}
}
bool sal::detail::textenc::handleUndefinedUnicodeToTextChar(
sal_Unicode const ** ppSrcBuf, sal_Unicode const * pEndSrcBuf,
char ** ppDestBuf, char const * pEndDestBuf, sal_uInt32 nFlags,
sal_uInt32 * pInfo)
{
sal_Unicode c = **ppSrcBuf;
/* Should the private character map to one byte */
if ( (c >= RTL_TEXTCVT_BYTE_PRIVATE_START) && (c <= RTL_TEXTCVT_BYTE_PRIVATE_END) )
{
if ( nFlags & RTL_UNICODETOTEXT_FLAGS_PRIVATE_MAPTO0 )
{
**ppDestBuf = (char)(sal_uChar)(c-RTL_TEXTCVT_BYTE_PRIVATE_START);
(*ppDestBuf)++;
(*ppSrcBuf)++;
return true;
}
}
/* Should this character ignored (Private, Non Spacing, Control) */
if ( ImplIsUnicodeIgnoreChar( c, nFlags ) )
{
(*ppSrcBuf)++;
return true;
}
/* Surrogates Characters should result in */
/* one replacement character */
if (ImplIsHighSurrogate(c))
{
if ( *ppSrcBuf == pEndSrcBuf )
{
*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR | RTL_UNICODETOTEXT_INFO_SRCBUFFERTOSMALL;
return false;
}
c = *((*ppSrcBuf)+1);
if (ImplIsLowSurrogate(c))
(*ppSrcBuf)++;
else
{
*pInfo |= RTL_UNICODETOTEXT_INFO_INVALID;
if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_INVALID_MASK) == RTL_UNICODETOTEXT_FLAGS_INVALID_ERROR )
{
*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR;
return false;
}
else if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_INVALID_MASK) == RTL_UNICODETOTEXT_FLAGS_INVALID_IGNORE )
{
(*ppSrcBuf)++;
return true;
}
else if (ImplGetInvalidAsciiMultiByte(nFlags,
*ppDestBuf,
pEndDestBuf - *ppDestBuf))
{
++*ppSrcBuf;
++*ppDestBuf;
return true;
}
else
{
*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR
| RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
return false;
}
}
}
*pInfo |= RTL_UNICODETOTEXT_INFO_UNDEFINED;
if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK) == RTL_UNICODETOTEXT_FLAGS_UNDEFINED_ERROR )
{
*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR;
return false;
}
else if ( (nFlags & RTL_UNICODETOTEXT_FLAGS_UNDEFINED_MASK) == RTL_UNICODETOTEXT_FLAGS_UNDEFINED_IGNORE )
(*ppSrcBuf)++;
else if (ImplGetUndefinedAsciiMultiByte(nFlags,
*ppDestBuf,
pEndDestBuf - *ppDestBuf))
{
++*ppSrcBuf;
++*ppDestBuf;
}
else
{
*pInfo |= RTL_UNICODETOTEXT_INFO_ERROR
| RTL_UNICODETOTEXT_INFO_DESTBUFFERTOSMALL;
return false;
}
return true;
}
|
