Qt 4.8
qxsltsimplecontentconstructor.cpp
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41 
42 #include "qatomicstring_p.h"
43 #include "qcommonsequencetypes_p.h"
44 
46 
48 
49 using namespace QPatternist;
50 
52 {
53 }
54 
56  bool &discard,
57  bool &isText)
58 {
59  if(item.isNode())
60  {
61  isText = (item.asNode().kind() == QXmlNodeModelIndex::Text);
62 
63  if(isText)
64  {
65  const QString value(item.stringValue());
66 
67  /* "1. Zero-length text nodes in the sequence are discarded." */
68  discard = value.isEmpty();
69  return value;
70  }
71  else
72  {
73  Item::Iterator::Ptr it(item.sequencedTypedValue()); /* Atomic values. */
74  Item next(it->next());
75  QString result;
76 
77  if(next)
78  result = next.stringValue();
79 
80  next = it->next();
81 
82  while(next)
83  {
84  result += next.stringValue();
85  result += QLatin1Char(' ');
86  next = it->next();
87  }
88 
89  return result;
90  }
91  }
92  else
93  {
94  discard = false;
95  isText = false;
96  return item.stringValue();
97  }
98 }
99 
101 {
103 
104  Item next(it->next());
105  QString result;
106 
107  bool previousIsText = false;
108  bool discard = false;
109 
110  if(next)
111  {
112  const QString unit(processItem(next, discard, previousIsText));
113 
114  if(!discard)
115  result = unit;
116 
117  next = it->next();
118  }
119  else
120  return Item();
121 
122  while(next)
123  {
124  bool currentIsText = false;
125  const QString unit(processItem(next, discard, currentIsText));
126 
127  if(!discard)
128  {
129  /* "Adjacent text nodes in the sequence are merged into a single text
130  * node." */
131  if(previousIsText && currentIsText)
132  ;
133  else
134  result += QLatin1Char(' ');
135 
136  result += unit;
137  }
138 
139  next = it->next();
140  previousIsText = currentIsText;
141  }
142 
143  return AtomicString::fromValue(result);
144 }
145 
147 {
148  SequenceType::List result;
150  return result;
151 }
152 
154 {
156 }
157 
#define QT_END_NAMESPACE
This macro expands to.
Definition: qglobal.h:90
static const SequenceType::Ptr ZeroOrMoreItems
#define it(className, varName)
The QString class provides a Unicode character string.
Definition: qstring.h:83
bool isNode() const
Determines whether this item is an atomic value, or a node.
Definition: qitem_p.h:349
static AtomicString::Ptr fromValue(const QString &value)
Constructs simple content as specified for attributes in direct element constructors in XQuery...
static const SequenceType::Ptr ZeroOrOneString
void append(const T &t)
Inserts value at the end of the list.
Definition: qlist.h:507
#define QT_BEGIN_NAMESPACE
This macro expands to.
Definition: qglobal.h:89
bool isEmpty() const
Returns true if the string has no characters; otherwise returns false.
Definition: qstring.h:704
The namespace for the internal API of QtXmlPatterns.
QString stringValue() const
Returns the string value of this Item.
Definition: qitem_p.h:302
virtual SequenceType::List expectedOperandTypes() const
virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const
const QXmlNodeModelIndex & asNode() const
Definition: qitem_p.h:379
Represents an item in the XPath 2.0 Data Model.
Definition: qitem_p.h:182
static QString processItem(const Item &item, bool &discard, bool &isText)
Item::Iterator::Ptr sequencedTypedValue() const
Returns the typed value of this item.
Definition: qitem.cpp:50
The QLatin1Char class provides an 8-bit ASCII/Latin-1 character.
Definition: qchar.h:55
NodeKind kind() const
Definition: qitem_p.h:471
The QList class is a template class that provides lists.
Definition: qdatastream.h:62
virtual Item::Iterator::Ptr evaluateSequence(const DynamicContext::Ptr &context) const