QPatternist::CaseInsensitiveStringComparator Class Reference

Performs case insensitive string comparison between xs:anyUri, xs:string, and xs:untypedAtomic. More...

#include <qatomiccomparators_p.h>

Inheritance diagram for QPatternist::CaseInsensitiveStringComparator:

Public Functions
virtual ComparisonResult	compare (const Item &op1, const AtomicComparator::Operator op, const Item &op2) const
virtual bool	equals (const Item &op1, const Item &op2) const
Public Functions inherited from QPatternist::AtomicComparator
	AtomicComparator ()
virtual	~AtomicComparator ()
Public Functions inherited from QPatternist::AtomicTypeVisitorResult
	AtomicTypeVisitorResult ()
virtual	~AtomicTypeVisitorResult ()
Public Functions inherited from QSharedData
	QSharedData ()
	Constructs a QSharedData object with a reference count of 0. More...
	QSharedData (const QSharedData &)
	Constructs a QSharedData object with reference count 0. More...

Additional Inherited Members
Public Types inherited from QPatternist::AtomicComparator
enum	ComparisonResult { LessThan = 1, Equal = 2, GreaterThan = 4, Incomparable = 8 }
enum	ComparisonType { AsGeneralComparison = 1, AsValueComparison }
enum	Operator {   OperatorEqual = 1, OperatorNotEqual = 1 << 1, OperatorGreaterThan = 1 << 2, OperatorLessThan = 1 << 3,   OperatorLessThanNaNLeast = 1 << 4, OperatorLessThanNaNGreatest = 1 << 5, OperatorGreaterOrEqual = OperatorEqual | OperatorGreaterThan, OperatorLessOrEqual = OperatorEqual | OperatorLessThan }
typedef QFlags< Operator >	Operators
typedef QExplicitlySharedDataPointer< AtomicComparator >	Ptr
Public Types inherited from QPatternist::AtomicTypeVisitorResult
typedef QExplicitlySharedDataPointer< AtomicTypeVisitorResult >	Ptr
Static Public Functions inherited from QPatternist::AtomicComparator
static QString	displayName (const AtomicComparator::Operator op, const ComparisonType type)
Public Variables inherited from QSharedData
QAtomicInt	ref

Detailed Description

Performs case insensitive string comparison between xs:anyUri, xs:string, and xs:untypedAtomic.

Author

Frans Englich frans.nosp@m..eng.nosp@m.lich@.nosp@m.noki.nosp@m.a.com

Definition at line 112 of file qatomiccomparators_p.h.

Functions

compare()

AtomicComparator::ComparisonResult CaseInsensitiveStringComparator::compare ( const Item &  op1, const AtomicComparator::Operator  op, const Item &  op2  ) const

virtual

Converts both string values to upper case and afterwards compare them.

Reimplemented from QPatternist::AtomicComparator.

Definition at line 83 of file qatomiccomparators.cpp.

{
    const QString i1(o1.stringValue().toLower());
    const QString i2(o2.stringValue().toLower());
    const int result = QString::compare(i1, i2);

    if(result > 0)
        return GreaterThan;
    else if(result < 0)
        return LessThan;
    else
    {
        Q_ASSERT(result == 0);
        return Equal;
    }
}

equals()

bool CaseInsensitiveStringComparator::equals ( const Item &  op1, const Item &  op2  ) const

virtual

Converts both string values case insensitively.

Implements QPatternist::AtomicComparator.

Definition at line 102 of file qatomiccomparators.cpp.

{
    const QString s1(o1.stringValue());
    const QString s2(o2.stringValue());

    return s1.length() == s2.length() &&
           s1.startsWith(s2, Qt::CaseInsensitive);
}

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The documentation for this class was generated from the following files:

• /src/xmlpatterns/data/qatomiccomparators_p.h
• /src/xmlpatterns/data/qatomiccomparators.cpp