qxpathhelper_p.h

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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_XPathHelper_H
#define Patternist_XPathHelper_H

#include "qcommonnamespaces_p.h"
#include "qitem_p.h"
#include "qpatternistlocale_p.h"
#include "qreportcontext_p.h"

QT_BEGIN_HEADER

QT_BEGIN_NAMESPACE

namespace QPatternist
{
    class XPathHelper
    {
    public:
        static bool isQName(const QString &qName);

        static void splitQName(const QString &qName, QString &prefix, QString &localName);

        static bool isReservedNamespace(const QXmlName::NamespaceCode ns);

        template<const ReportContext::ErrorCode code, typename TReportContext>
        static inline void checkCollationSupport(const QString &collation,
                                                 const TReportContext &context,
                                                 const SourceLocationReflection *const r)
        {
            Q_ASSERT(context);
            Q_ASSERT(r);

            if(collation != QLatin1String(CommonNamespaces::UNICODE_COLLATION))
            {
                context->error(QtXmlPatterns::tr("Only the Unicode Codepoint "
                                  "Collation is supported(%1). %2 is unsupported.")
                                  .arg(formatURI(QLatin1String(CommonNamespaces::UNICODE_COLLATION)))
                                  .arg(formatURI(collation)),
                               code, r);
            }
        }

        static QPatternist::ItemTypePtr typeFromKind(const QXmlNodeModelIndex::NodeKind nodeKind);

        static QUrl normalizeQueryURI(const QUrl &uri);

        static inline bool isWhitespaceOnly(const QStringRef &string)
        {
            const int len = string.length();

            for(int i = 0; i < len; ++i)
            {
                if(!string.at(i).isSpace()) // TODO and this is wrong, see sdk/TODO
                    return false;
            }

            return true;
        }

        static inline bool isWhitespaceOnly(const QString &string)
        {
            return isWhitespaceOnly(QStringRef(&string));
        }

    private:
        inline XPathHelper();

        Q_DISABLE_COPY(XPathHelper)
    };
}

QT_END_NAMESPACE

QT_END_HEADER

#endif