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1 /**************************************************************************** |
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2 ** |
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3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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4 ** All rights reserved. |
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5 ** Contact: Nokia Corporation (qt-info@nokia.com) |
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6 ** |
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7 ** This file is part of the QtXmlPatterns module of the Qt Toolkit. |
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8 ** |
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9 ** $QT_BEGIN_LICENSE:LGPL$ |
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10 ** No Commercial Usage |
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11 ** This file contains pre-release code and may not be distributed. |
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12 ** You may use this file in accordance with the terms and conditions |
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13 ** contained in the Technology Preview License Agreement accompanying |
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14 ** this package. |
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15 ** |
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16 ** GNU Lesser General Public License Usage |
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17 ** Alternatively, this file may be used under the terms of the GNU Lesser |
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18 ** General Public License version 2.1 as published by the Free Software |
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19 ** Foundation and appearing in the file LICENSE.LGPL included in the |
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20 ** packaging of this file. Please review the following information to |
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21 ** ensure the GNU Lesser General Public License version 2.1 requirements |
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22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. |
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23 ** |
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24 ** In addition, as a special exception, Nokia gives you certain additional |
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25 ** rights. These rights are described in the Nokia Qt LGPL Exception |
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26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. |
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27 ** |
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28 ** If you have questions regarding the use of this file, please contact |
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29 ** Nokia at qt-info@nokia.com. |
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30 ** |
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31 ** |
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32 ** |
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33 ** |
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34 ** |
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35 ** |
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36 ** |
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37 ** |
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38 ** $QT_END_LICENSE$ |
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39 ** |
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40 ****************************************************************************/ |
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41 |
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42 // |
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43 // W A R N I N G |
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44 // ------------- |
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45 // |
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46 // This file is not part of the Qt API. It exists purely as an |
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47 // implementation detail. This header file may change from version to |
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48 // version without notice, or even be removed. |
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49 // |
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50 // We mean it. |
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51 |
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52 #ifndef Patternist_CommonValues_H |
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53 #define Patternist_CommonValues_H |
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54 |
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55 #include "qdaytimeduration_p.h" |
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56 #include "qyearmonthduration_p.h" |
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57 #include "qemptyiterator_p.h" |
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58 |
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59 QT_BEGIN_HEADER |
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60 |
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61 QT_BEGIN_NAMESPACE |
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62 |
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63 namespace QPatternist |
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64 { |
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65 |
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66 /** |
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67 * @short A collection of common values. |
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68 * |
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69 * @author Frans Englich <frans.englich@nokia.com> |
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70 * @ingroup Patternist_xdm |
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71 * @todo Documentation is missing/incomplete |
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72 */ |
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73 class CommonValues |
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74 { |
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75 public: |
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76 /** |
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77 * An empty, zero-length string. |
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78 * |
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79 * @note It is not @c null, but empty. |
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80 */ |
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81 static const AtomicValue::Ptr EmptyString; |
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82 |
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83 /** |
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84 * The string "true", the lexical representation of |
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85 * @c xs:boolean's value @c true. |
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86 */ |
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87 static const AtomicValue::Ptr TrueString; |
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88 |
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89 /** |
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90 * The string "false", the lexical representation of |
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91 * @c xs:boolean's value @c false. |
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92 */ |
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93 static const AtomicValue::Ptr UntypedAtomicFalse; |
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94 |
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95 /** |
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96 * The string "true", the lexical representation of |
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97 * @c xs:boolean's value @c true. |
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98 */ |
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99 static const AtomicValue::Ptr UntypedAtomicTrue; |
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100 |
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101 /** |
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102 * The string "false", the lexical representation of |
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103 * @c xs:boolean's value @c false. |
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104 */ |
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105 static const AtomicValue::Ptr FalseString; |
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106 |
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107 /** |
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108 * @returns a Boolean instance carrying the boolean value @c true. |
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109 * Use this value instead of Boolean::fromValue() if you |
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110 * know what boolean value you need. |
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111 */ |
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112 static const AtomicValue::Ptr BooleanTrue; |
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113 |
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114 /** |
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115 * @returns a Boolean instance carrying the boolean value @c true. |
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116 * Use this value instead of Boolean::fromValue() if you |
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117 * know what boolean value you need. |
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118 */ |
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119 static const AtomicValue::Ptr BooleanFalse; |
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120 |
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121 /** |
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122 * Not-a-Numeric typed as @c xs:double. |
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123 */ |
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124 static const AtomicValue::Ptr DoubleNaN; |
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125 |
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126 /** |
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127 * Not-a-Number typed as @c xs:float, <tt>xs:float("NaN")</tt>. |
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128 */ |
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129 static const AtomicValue::Ptr FloatNaN; |
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130 |
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131 /** |
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132 * Zero(0) typed as @c xs:integer, <tt>xs:integer("0")</tt>. |
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133 */ |
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134 static const Item IntegerZero; |
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135 |
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136 /** |
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137 * An empty, "", @c xs:anyURI. |
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138 */ |
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139 static const AtomicValue::Ptr EmptyAnyURI; |
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140 |
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141 /** |
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142 * The empty sequence. |
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143 */ |
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144 static const EmptyIterator<Item>::Ptr emptyIterator; |
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145 |
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146 /** |
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147 * <tt>xs:float("-INF")</tt> |
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148 */ |
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149 static const AtomicValue::Ptr NegativeInfFloat; |
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150 |
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151 /** |
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152 * <tt>xs:float("INF")</tt> |
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153 */ |
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154 static const AtomicValue::Ptr InfFloat; |
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155 |
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156 /** |
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157 * <tt>xs:double("-INF")</tt> |
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158 */ |
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159 static const AtomicValue::Ptr NegativeInfDouble; |
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160 |
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161 /** |
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162 * <tt>xs:double("INF")</tt> |
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163 */ |
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164 static const AtomicValue::Ptr InfDouble; |
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165 |
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166 /** |
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167 * <tt>xs:float("1")</tt> |
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168 */ |
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169 static const AtomicValue::Ptr FloatOne; |
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170 /** |
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171 * <tt>xs:double("1")</tt> |
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172 */ |
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173 static const AtomicValue::Ptr DoubleOne; |
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174 /** |
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175 * <tt>xs:decimal("1")</tt> |
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176 */ |
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177 static const AtomicValue::Ptr DecimalOne; |
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178 |
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179 /** |
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180 * <tt>xs:integer("1")</tt> |
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181 */ |
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182 static const Item IntegerOne; |
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183 |
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184 /** |
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185 * <tt>xs:integer("-1")</tt> |
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186 */ |
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187 static const Item IntegerOneNegative; |
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188 |
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189 /** |
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190 * <tt>xs:double("0")</tt> |
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191 */ |
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192 static const AtomicValue::Ptr DoubleZero; |
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193 |
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194 /** |
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195 * <tt>xs:float("0")</tt> |
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196 */ |
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197 static const AtomicValue::Ptr FloatZero; |
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198 /** |
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199 * <tt>xs:integer("0")</tt> |
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200 */ |
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201 static const AtomicValue::Ptr DecimalZero; |
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202 |
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203 /** |
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204 * The @c xs:dayTimeDuration value PT0S |
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205 */ |
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206 static const DayTimeDuration::Ptr DayTimeDurationZero; |
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207 |
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208 /** |
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209 * The @c xs:yearMonthDuration value P0M |
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210 */ |
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211 static const DayTimeDuration::Ptr YearMonthDurationZero; |
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212 |
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213 private: |
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214 /** |
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215 * The constructor is private because this class is not meant to be instantiated, |
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216 * but should only be used via its static const members. |
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217 */ |
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218 inline CommonValues(); |
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219 |
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220 Q_DISABLE_COPY(CommonValues) |
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221 }; |
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222 } |
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223 |
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224 QT_END_NAMESPACE |
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225 |
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226 QT_END_HEADER |
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227 |
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228 #endif |