/****************************************************************************
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//
//  W A R N I N G
//  -------------
//
// This file is not part of the Qt API.  It exists purely as an
// implementation detail.  This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.

#ifndef Patternist_SubStringFNs_H
#define Patternist_SubStringFNs_H

#include "qcomparescaseaware_p.h"

/**
 * @file
 * @short Contains classes implementing the functions found in
 * <a href="http://www.w3.org/TR/xpath-functions/#substring.functions">XQuery 1.0 and
 * XPath 2.0 Functions and Operators, 7.5 Functions Based on Substring Matching</a>.
 * @ingroup Patternist_functions
 */

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    /**
     * @short Implements the function <tt>fn:contains()</tt>.
     *
     * @ingroup Patternist_functions
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class ContainsFN : public ComparesCaseAware
    {
    public:
        virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
    };

    /**
     * @short Implements the function <tt>fn:starts-with()</tt>.
     *
     * @ingroup Patternist_functions
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class StartsWithFN : public ComparesCaseAware
    {
    public:
        virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
    };

    /**
     * @short Implements the function <tt>fn:ends-with()</tt>.
     *
     * @ingroup Patternist_functions
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class EndsWithFN : public ComparesCaseAware
    {
    public:
        virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
    };

    /**
     * @short Implements the function <tt>fn:substring-before()</tt>.
     *
     * @ingroup Patternist_functions
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class SubstringBeforeFN : public FunctionCall
    {
    public:
        virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
    };

    /**
     * @short Implements the function <tt>fn:substring-after()</tt>.
     *
     * @ingroup Patternist_functions
     * @author Frans Englich <frans.englich@nokia.com>
     */
    class SubstringAfterFN : public FunctionCall
    {
    public:
        virtual Item evaluateSingleton(const DynamicContext::Ptr &context) const;
    };
}

QT_END_NAMESPACE

QT_END_HEADER

#endif