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39
40//
41// W A R N I N G
42// -------------
43//
44// This file is not part of the Qt API. It exists purely as an
45// implementation detail. This header file may change from version to
46// version without notice, or even be removed.
47//
48// We mean it.
49
50#ifndef Patternist_CommonValues_H
51#define Patternist_CommonValues_H
52
53#include <private/qdaytimeduration_p.h>
54#include <private/qyearmonthduration_p.h>
55#include <private/qemptyiterator_p.h>
56
57QT_BEGIN_NAMESPACE
58
59namespace QPatternist
60{
61
62 /**
63 * @short A collection of common values.
64 *
65 * @author Frans Englich <frans.englich@nokia.com>
66 * @ingroup Patternist_xdm
67 * @todo Documentation is missing/incomplete
68 */
69 class CommonValues
70 {
71 public:
72 /**
73 * An empty, zero-length string.
74 *
75 * @note It is not @c null, but empty.
76 */
77 static const AtomicValue::Ptr EmptyString;
78
79 /**
80 * The string "true", the lexical representation of
81 * @c xs:boolean's value @c true.
82 */
83 static const AtomicValue::Ptr TrueString;
84
85 /**
86 * The string "false", the lexical representation of
87 * @c xs:boolean's value @c false.
88 */
89 static const AtomicValue::Ptr UntypedAtomicFalse;
90
91 /**
92 * The string "true", the lexical representation of
93 * @c xs:boolean's value @c true.
94 */
95 static const AtomicValue::Ptr UntypedAtomicTrue;
96
97 /**
98 * The string "false", the lexical representation of
99 * @c xs:boolean's value @c false.
100 */
101 static const AtomicValue::Ptr FalseString;
102
103 /**
104 * @returns a Boolean instance carrying the boolean value @c true.
105 * Use this value instead of Boolean::fromValue() if you
106 * know what boolean value you need.
107 */
108 static const AtomicValue::Ptr BooleanTrue;
109
110 /**
111 * @returns a Boolean instance carrying the boolean value @c true.
112 * Use this value instead of Boolean::fromValue() if you
113 * know what boolean value you need.
114 */
115 static const AtomicValue::Ptr BooleanFalse;
116
117 /**
118 * Not-a-Numeric typed as @c xs:double.
119 */
120 static const AtomicValue::Ptr DoubleNaN;
121
122 /**
123 * Not-a-Number typed as @c xs:float, <tt>xs:float("NaN")</tt>.
124 */
125 static const AtomicValue::Ptr FloatNaN;
126
127 /**
128 * Zero(0) typed as @c xs:integer, <tt>xs:integer("0")</tt>.
129 */
130 static const Item IntegerZero;
131
132 /**
133 * An empty, "", @c xs:anyURI.
134 */
135 static const AtomicValue::Ptr EmptyAnyURI;
136
137 /**
138 * The empty sequence.
139 */
140 static const EmptyIterator<Item>::Ptr emptyIterator;
141
142 /**
143 * <tt>xs:float("-INF")</tt>
144 */
145 static const AtomicValue::Ptr NegativeInfFloat;
146
147 /**
148 * <tt>xs:float("INF")</tt>
149 */
150 static const AtomicValue::Ptr InfFloat;
151
152 /**
153 * <tt>xs:double("-INF")</tt>
154 */
155 static const AtomicValue::Ptr NegativeInfDouble;
156
157 /**
158 * <tt>xs:double("INF")</tt>
159 */
160 static const AtomicValue::Ptr InfDouble;
161
162 /**
163 * <tt>xs:float("1")</tt>
164 */
165 static const AtomicValue::Ptr FloatOne;
166 /**
167 * <tt>xs:double("1")</tt>
168 */
169 static const AtomicValue::Ptr DoubleOne;
170 /**
171 * <tt>xs:decimal("1")</tt>
172 */
173 static const AtomicValue::Ptr DecimalOne;
174
175 /**
176 * <tt>xs:integer("1")</tt>
177 */
178 static const Item IntegerOne;
179
180 /**
181 * <tt>xs:integer("-1")</tt>
182 */
183 static const Item IntegerOneNegative;
184
185 /**
186 * <tt>xs:double("0")</tt>
187 */
188 static const AtomicValue::Ptr DoubleZero;
189
190 /**
191 * <tt>xs:float("0")</tt>
192 */
193 static const AtomicValue::Ptr FloatZero;
194 /**
195 * <tt>xs:integer("0")</tt>
196 */
197 static const AtomicValue::Ptr DecimalZero;
198
199 /**
200 * The @c xs:dayTimeDuration value PT0S
201 */
202 static const DayTimeDuration::Ptr DayTimeDurationZero;
203
204 /**
205 * The @c xs:yearMonthDuration value P0M
206 */
207 static const YearMonthDuration::Ptr YearMonthDurationZero;
208
209 private:
210 /**
211 * The constructor is private because this class is not meant to be instantiated,
212 * but should only be used via its static const members.
213 */
214 inline CommonValues();
215
216 Q_DISABLE_COPY(CommonValues)
217 };
218}
219
220QT_END_NAMESPACE
221
222#endif
223

source code of qtxmlpatterns/src/xmlpatterns/data/qcommonvalues_p.h