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
|
/*
* Copyright (C) 2008,2010 Nokia Corporation.
* Copyright (C) 2008 Zeeshan Ali (Khattak) <zeeshanak@gnome.org>.
*
* Author: Zeeshan Ali (Khattak) <zeeshanak@gnome.org>
*
* This file is part of Rygel.
*
* Rygel is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* Rygel 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 for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
using Xml;
/**
* XML utility API.
*/
public class Rygel.XMLUtils {
public static Xml.Ns* get_namespace (Xml.Node *root, string href, string prefix) {
Xml.Ns* ns = root->new_ns (href, prefix);
if (ns != null) {
return ns;
}
// ns was null, so the namespace exists. Go find it.
ns = root->ns_def;
while (ns != null) {
if (ns->prefix == prefix) {
return ns;
}
}
assert_not_reached ();
}
/* Copy-paste from gupnp and ported to Vala. */
public static Xml.Node* get_element (Xml.Node *node, ...) {
Xml.Node *ret = node;
var list = va_list ();
while (true) {
string arg = list.arg ();
if (arg == null)
break;
for (ret = ret->children; ret != null; ret = ret->next)
if (arg == ret->name)
break;
if (ret == null)
break;
}
return ret;
}
/**
* Convenience class to iterate over Xml.Node's siblings in vala's foreach
* loop.
*/
public class Iterator {
private Xml.Node* iter;
public Iterator (Xml.Node* node) {
this.iter = node;
}
public Iterator iterator() {
return this;
}
public bool next () {
return this.iter != null;
}
public Xml.Node* @get () {
var current = this.iter;
this.iter = this.iter->next;
return current;
}
}
public class ChildIterator : Iterator {
public ChildIterator (Xml.Node* node) {
base (node->children);
}
}
}
|
