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
|
//------------------------------------------------------------------------------
// <copyright file="XmlQualifiedNameTest.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
// <owner current="true" primary="true">[....]</owner>
//------------------------------------------------------------------------------
using System;
using System.Xml;
using System.Xml.Schema;
using System.Collections.Generic;
using System.Diagnostics;
using System.Text;
namespace System.Xml.Xsl {
/// <summary>
/// XmlQualifiedName extends XmlQualifiedName to support wildcards and adds nametest functionality
/// Following are the examples:
/// {A}:B XmlQualifiedNameTest.New("B", "A") Match QName with namespace A and local name B
/// * XmlQualifiedNameTest.New(null, null) Match any QName
/// {A}:* XmlQualifiedNameTest.New(null, "A") Match QName with namespace A and any local name
/// XmlQualifiedNameTest.New("A", false)
/// *:B XmlQualifiedNameTest.New("B", null) Match QName with any namespace and local name B
/// ~{A}:* XmlQualifiedNameTest.New("B", "A") Match QName with namespace not A and any local name
/// {~A}:B only as a result of the intersection Match QName with namespace not A and local name B
/// </summary>
internal class XmlQualifiedNameTest : XmlQualifiedName {
bool exclude;
const string wildcard = "*";
static XmlQualifiedNameTest wc = XmlQualifiedNameTest.New(wildcard, wildcard);
/// <summary>
/// Full wildcard
/// </summary>
public static XmlQualifiedNameTest Wildcard {
get { return wc; }
}
/// <summary>
/// Constructor
/// </summary>
private XmlQualifiedNameTest(string name, string ns, bool exclude) : base (name, ns) {
this.exclude = exclude;
}
/// <summary>
/// Construct new from name and namespace. Returns singleton Wildcard in case full wildcard
/// </summary>
public static XmlQualifiedNameTest New(string name, string ns) {
if (ns == null && name == null) {
return Wildcard;
}
else {
return new XmlQualifiedNameTest(name == null ? wildcard : name, ns == null ? wildcard : ns, false);
}
}
/// <summary>
/// True if matches any name and any namespace
/// </summary>
public bool IsWildcard {
get { return (object)this == (object)Wildcard; }
}
/// <summary>
/// True if matches any name
/// </summary>
public bool IsNameWildcard {
get { return (object)this.Name == (object)wildcard; }
}
/// <summary>
/// True if matches any namespace
/// </summary>
public bool IsNamespaceWildcard {
get { return (object)this.Namespace == (object)wildcard; }
}
private bool IsNameSubsetOf(XmlQualifiedNameTest other) {
return other.IsNameWildcard || this.Name == other.Name;
}
//
private bool IsNamespaceSubsetOf(XmlQualifiedNameTest other) {
return other.IsNamespaceWildcard
|| (this.exclude == other.exclude && this.Namespace == other.Namespace)
|| (other.exclude && !this.exclude && this.Namespace != other.Namespace);
}
/// <summary>
/// True if this matches every QName other does
/// </summary>
public bool IsSubsetOf(XmlQualifiedNameTest other) {
return IsNameSubsetOf(other) && IsNamespaceSubsetOf(other);
}
/// <summary>
/// Return true if the result of intersection with other is not empty
/// </summary>
public bool HasIntersection(XmlQualifiedNameTest other) {
return (IsNamespaceSubsetOf(other) || other.IsNamespaceSubsetOf(this)) && (IsNameSubsetOf(other) || other.IsNameSubsetOf(this));
}
/// <summary>
/// String representation
/// </summary>
public override string ToString() {
if ((object)this == (object)Wildcard) {
return "*";
}
else {
if (this.Namespace.Length == 0) {
return this.Name;
}
else if ((object)this.Namespace == (object)wildcard) {
return "*:" + this.Name;
}
else if (this.exclude) {
return "{~" + this.Namespace + "}:" + this.Name;
}
else {
return "{" + this.Namespace + "}:" + this.Name;
}
}
}
#if SchemaTypeImport
/// <summary>
/// Construct new from XmlQualifiedName. Returns singleton Wildcard in case full wildcard
/// </summary>
public static XmlQualifiedNameTest New(XmlQualifiedName name) {
if (name.IsEmpty) {
return Wildcard;
}
else {
return new XmlQualifiedNameTest(name.Name, name.Namespace, false);
}
}
/// <summary>
/// Construct new "exclusion" name test
/// </summary>
public static XmlQualifiedNameTest New(string ns, bool exclude) {
Debug.Assert(ns != null);
return new XmlQualifiedNameTest(wildcard, ns, exclude);
}
/// <summary>
/// Return the result of intersection with other
/// </summary>
public XmlQualifiedNameTest Intersect(XmlQualifiedNameTest other) {
// Namespace
// this\other ~y * y
// ~x x=y ? this|other : null this x!=y ? other : null
// * other this|other other
// x x!=y ? this : null this x=y ? this|other : null
XmlQualifiedNameTest namespaceFrom = IsNamespaceSubsetOf(other) ? this : other.IsNamespaceSubsetOf(this) ? other : null;
XmlQualifiedNameTest nameFrom = IsNameSubsetOf(other) ? this : other.IsNameSubsetOf(this) ? other : null;
if ((object)namespaceFrom == (object)nameFrom) {
return namespaceFrom;
}
else if (namespaceFrom == null || nameFrom == null) {
return null;
}
else {
return new XmlQualifiedNameTest(nameFrom.Name, namespaceFrom.Namespace, namespaceFrom.ExcludeNamespace);
}
}
/// <summary>
/// True if neither name nor namespace is a wildcard
/// </summary>
public bool IsSingleName {
get { return (object)this.Name != (object)wildcard && (object)this.Namespace != (object)wildcard && this.exclude == false; }
}
/// <summary>
/// True if matches any namespace other then this.Namespace
/// </summary>
public bool ExcludeNamespace {
get { return this.exclude; }
}
#endif
}
}
|
