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
|
// file : web/xhtml-fragment.cxx -*- C++ -*-
// copyright : Copyright (c) 2014-2018 Code Synthesis Ltd
// license : MIT; see accompanying LICENSE file
#include <web/xhtml-fragment.hxx>
#include <string>
#include <cassert>
#include <libstudxml/parser.hxx>
#include <libstudxml/serializer.hxx>
#include <web/xhtml.hxx>
using namespace std;
using namespace xml;
namespace web
{
namespace xhtml
{
fragment::
fragment (const string& text, const string& name)
{
// To parse the fragment make it a valid xml document, wrapping with the
// root element.
//
string doc ("<d>" + text + "</d>");
parser p (
doc.c_str (),
doc.size (),
name,
parser::receive_elements | parser::receive_characters |
parser::receive_attributes_event);
for (parser::event_type e: p)
{
switch (e)
{
case parser::start_element:
case parser::start_attribute:
{
const auto& n (p.qname ());
if (!n.namespace_ ().empty ())
throw parsing (
name, p.line (), p.column (), "namespace is not allowed");
events_.emplace_back (e, n.name ());
break;
}
case parser::end_element:
case parser::end_attribute:
{
events_.emplace_back (e, "");
break;
}
case parser::characters:
{
events_.emplace_back (e, p.value ());
break;
}
default:
assert (false);
}
}
// Unwrap the fragment removing the root element events.
//
assert (events_.size () >= 2);
events_.erase (events_.begin ());
events_.pop_back ();
}
void fragment::
operator() (serializer& s) const
{
for (const auto& e: events_)
{
switch (e.first)
{
case parser::start_element:
{
s.start_element (xmlns, e.second);
break;
}
case parser::start_attribute:
{
s.start_attribute (e.second);
break;
}
case parser::end_element:
{
s.end_element ();
break;
}
case parser::end_attribute:
{
s.end_attribute ();
break;
}
case parser::characters:
{
s.characters (e.second);
break;
}
default:
assert (false);
}
}
}
}
}
|
