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39
40#include "qanyuri_p.h"
41#include "qbuiltintypes_p.h"
42#include "qcommonvalues_p.h"
43#include "qpatternistlocale_p.h"
44#include "qnodenamespaceresolver_p.h"
45#include "qqnameconstructor_p.h"
46#include "qqnamevalue_p.h"
47#include "qatomicstring_p.h"
48#include "qxpathhelper_p.h"
49
50#include "qqnamefns_p.h"
51
52QT_BEGIN_NAMESPACE
53
54using namespace QPatternist;
55
56Item QNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
57{
58 const Item paramURI(m_operands.first()->evaluateSingleton(context));
59 const QString paramQName(m_operands.last()->evaluateSingleton(context).stringValue());
60
61 QString ns;
62 if(paramURI)
63 ns = paramURI.stringValue();
64
65 if(!XPathHelper::isQName(qName: paramQName))
66 {
67 context->error(message: QtXmlPatterns::tr(sourceText: "%1 is an invalid %2").arg(args: formatData(data: paramQName),
68 args: formatType(np: context->namePool(), type: BuiltinTypes::xsQName)),
69 errorCode: ReportContext::FOCA0002, reflection: this);
70 return Item();
71 }
72
73 QString prefix;
74 QString lname;
75 XPathHelper::splitQName(qName: paramQName, prefix, localName&: lname);
76 const QXmlName n(context->namePool()->allocateQName(uri: ns, localName: lname, prefix));
77
78 if(ns.isEmpty())
79 {
80 if(prefix.isEmpty())
81 return toItem(atomicValue: QNameValue::fromValue(np: context->namePool(), name: n));
82 else
83 {
84 context->error(message: QtXmlPatterns::tr(
85 sourceText: "If the first argument is the empty sequence or "
86 "a zero-length string (no namespace), a prefix "
87 "cannot be specified. Prefix %1 was specified.")
88 .arg(a: formatKeyword(keyword: prefix)),
89 errorCode: ReportContext::FOCA0002, reflection: this);
90 return Item(); /* Silence compiler warning. */
91 }
92 }
93 else
94 return toItem(atomicValue: QNameValue::fromValue(np: context->namePool(), name: n));
95}
96
97Item ResolveQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
98{
99 const Item itemName(m_operands.first()->evaluateSingleton(context));
100
101 if(!itemName)
102 return Item();
103
104 const NamespaceResolver::Ptr resolver(new NodeNamespaceResolver(m_operands.last()->evaluateSingleton(context)));
105 const QString strName(itemName.stringValue());
106 const QXmlName name = QNameConstructor::expandQName<DynamicContext::Ptr,
107 ReportContext::FOCA0002,
108 ReportContext::FONS0004>(lexicalQName: strName,
109 context,
110 nsResolver: resolver,
111 r: this);
112
113 return toItem(atomicValue: QNameValue::fromValue(np: context->namePool(), name));
114}
115
116Item PrefixFromQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
117{
118 const QNameValue::Ptr arg(m_operands.first()->evaluateSingleton(context).as<QNameValue>());
119 if(!arg)
120 return Item();
121
122 const QString prefix(context->namePool()->stringForPrefix(code: arg->qName().prefix()));
123
124 if(prefix.isEmpty())
125 return Item();
126 else
127 return AtomicString::fromValue(value: context->namePool()->stringForPrefix(code: arg->qName().prefix()));
128}
129
130Item LocalNameFromQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
131{
132 const QNameValue::Ptr arg(m_operands.first()->evaluateSingleton(context).as<QNameValue>());
133 return arg ? toItem(atomicValue: AtomicString::fromValue(value: context->namePool()->stringForLocalName(code: arg->qName().localName()))) : Item();
134}
135
136Item NamespaceURIFromQNameFN::evaluateSingleton(const DynamicContext::Ptr &context) const
137{
138 const QNameValue::Ptr arg(m_operands.first()->evaluateSingleton(context).as<QNameValue>());
139 return arg ? toItem(atomicValue: AnyURI::fromValue(value: context->namePool()->stringForNamespace(code: arg->qName().namespaceURI()))) : Item();
140}
141
142Item NamespaceURIForPrefixFN::evaluateSingleton(const DynamicContext::Ptr &context) const
143{
144 const Item prefixItem(m_operands.first()->evaluateSingleton(context));
145 QXmlName::PrefixCode prefix;
146
147 if(prefixItem)
148 prefix = context->namePool()->allocatePrefix(prefix: prefixItem.stringValue());
149 else
150 prefix = StandardPrefixes::empty;
151
152 const Item eleItem(m_operands.last()->evaluateSingleton(context));
153 Q_ASSERT(eleItem);
154
155 const QXmlName::NamespaceCode ns = eleItem.asNode().namespaceForPrefix(prefix);
156
157 if(ns == NamespaceResolver::NoBinding)
158 {
159 /* This is a bit tricky. The default namespace is not considered an in-scope binding
160 * on a node, but the specification for this function do consider it a binding and therefore
161 * the empty string. */
162 if(prefix == StandardPrefixes::empty)
163 return CommonValues::EmptyString;
164 else
165 return Item();
166 }
167 else
168 return toItem(atomicValue: AnyURI::fromValue(value: context->namePool()->stringForNamespace(code: ns)));
169}
170
171Item::Iterator::Ptr InScopePrefixesFN::evaluateSequence(const DynamicContext::Ptr &context) const
172{
173 const Item e(m_operands.first()->evaluateSingleton(context));
174
175 const QVector<QXmlName> nbs(e.asNode().namespaceBindings());
176 const int len = nbs.size();
177 const NamePool::Ptr np(context->namePool());
178
179 QList<Item> result;
180
181 for(int i = 0; i < len; ++i)
182 result.append(t: AtomicString::fromValue(value: np->stringForPrefix(code: nbs.at(i).prefix())));
183
184 return makeListIterator(list: result);
185}
186
187QT_END_NAMESPACE
188

source code of qtxmlpatterns/src/xmlpatterns/functions/qqnamefns.cpp