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
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*************************************************************************
*
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* Copyright 2000, 2010 Oracle and/or its affiliates.
*
* OpenOffice.org - a multi-platform office productivity suite
*
* This file is part of OpenOffice.org.
*
* OpenOffice.org is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License version 3
* only, as published by the Free Software Foundation.
*
* OpenOffice.org is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License version 3 for more details
* (a copy is included in the LICENSE file that accompanied this code).
*
* You should have received a copy of the GNU Lesser General Public License
* version 3 along with OpenOffice.org. If not, see
* <http://www.openoffice.org/license.html>
* for a copy of the LGPLv3 License.
*
************************************************************************/
// MARKER(update_precomp.py): autogen include statement, do not remove
#include "precompiled_shell.hxx"
#include "internal/xml_parser.hxx"
#include "internal/i_xml_parser_event_handler.hxx"
#include <assert.h>
namespace /* private */
{
/* Extracts the local part of tag without
namespace decoration e.g. meta:creator -> creator */
const XML_Char COLON = (XML_Char)':';
const XML_Char* get_local_name(const XML_Char* rawname)
{
const XML_Char* p = rawname;
// go to the end
while (*p) p++;
// go back until the first ':'
while (*p != COLON && p > rawname)
p--;
// if we are on a colon one step forward
if (*p == COLON)
p++;
return p;
}
inline xml_parser* get_parser_instance(void* data)
{
return reinterpret_cast<xml_parser*>(XML_GetUserData(
reinterpret_cast<XML_Parser>(data)));
}
bool has_only_whitespaces(const XML_Char* s, int len)
{
const XML_Char* p = s;
for (int i = 0; i < len; i++)
if (*p++ != ' ') return false;
return true;
}
}
xml_parser::xml_parser(const XML_Char* EncodingName) :
document_handler_(0),
xml_parser_(XML_ParserCreate(EncodingName))
{
init();
}
xml_parser::~xml_parser()
{
XML_ParserFree(xml_parser_);
}
/* Callback functions will be called by the parser on
different events */
extern "C"
{
static void xml_start_element_handler(void* UserData, const XML_Char* name, const XML_Char** atts)
{
assert(UserData != NULL);
xml_parser* pImpl = get_parser_instance(UserData);
i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
if (pDocHdl)
{
xml_tag_attribute_container_t attributes;
int i = 0;
while(atts[i])
{
attributes[reinterpret_cast<const char_t*>(get_local_name(atts[i]))] = reinterpret_cast<const char_t*>(atts[i+1]);
i += 2; // skip to next pair
}
pDocHdl->start_element(
reinterpret_cast<const char_t*>(name), reinterpret_cast<const char_t*>(get_local_name(name)), attributes);
}
}
static void xml_end_element_handler(void* UserData, const XML_Char* name)
{
assert(UserData);
xml_parser* pImpl = get_parser_instance(UserData);
i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
if (pDocHdl)
pDocHdl->end_element(reinterpret_cast<const char_t*>(name), reinterpret_cast<const char_t*>(get_local_name(name)));
}
static void xml_character_data_handler(void* UserData, const XML_Char* s, int len)
{
assert(UserData);
xml_parser* pImpl = get_parser_instance(UserData);
i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
if (pDocHdl)
{
if (has_only_whitespaces(s,len))
pDocHdl->ignore_whitespace(string_t(reinterpret_cast<const char_t*>(s), len));
else
pDocHdl->characters(string_t(reinterpret_cast<const char_t*>(s), len));
}
}
static void xml_comment_handler(void* UserData, const XML_Char* Data)
{
assert(UserData);
xml_parser* pImpl = get_parser_instance(UserData);
i_xml_parser_event_handler* pDocHdl = pImpl->get_document_handler();
if (pDocHdl)
pDocHdl->comment(reinterpret_cast<const char_t*>(Data));
}
} // extern "C"
void xml_parser::init()
{
XML_SetUserData(xml_parser_, this);
// we use the parser as handler argument,
// so we could use it if necessary, the
// UserData are usable anyway using
// XML_GetUserData(...)
XML_UseParserAsHandlerArg(xml_parser_);
XML_SetElementHandler(
xml_parser_,
xml_start_element_handler,
xml_end_element_handler);
XML_SetCharacterDataHandler(
xml_parser_,
xml_character_data_handler);
XML_SetCommentHandler(
xml_parser_,
xml_comment_handler);
}
void xml_parser::parse(const char* XmlData, size_t Length, bool IsFinal)
{
if (0 == XML_Parse(xml_parser_, XmlData, Length, IsFinal))
throw xml_parser_exception(
(char*)XML_ErrorString(XML_GetErrorCode(xml_parser_)),
(int)XML_GetErrorCode(xml_parser_),
XML_GetCurrentLineNumber(xml_parser_),
XML_GetCurrentColumnNumber(xml_parser_),
XML_GetCurrentByteIndex(xml_parser_));
}
void xml_parser::set_document_handler(
i_xml_parser_event_handler* event_handler)
{
document_handler_ = event_handler;
}
i_xml_parser_event_handler* xml_parser::get_document_handler() const
{
return document_handler_;
}
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
