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/****************************************************************************
**
** Copyright (C) 2021 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of the QtXmlPatterns module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:COMM$
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and The Qt Company. For licensing terms
** and conditions see https://www.qt.io/terms-conditions. For further
** information use the contact form at https://www.qt.io/contact-us.
**
** $QT_END_LICENSE$
**
**
**
**
**
**
**
**
**
**
**
**
**
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**
**
**
****************************************************************************/
#include "qcommonvalues_p.h"
#include "qpatternistlocale_p.h"
#include "qschemanumeric_p.h"
#include "qatomicstring_p.h"
#include "qtocodepointsiterator_p.h"
#include "qassemblestringfns_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
/*
* Determines whether @p cp is a valid XML 1.0 character.
*
* @see <a href="http://www.w3.org/TR/REC-xml/#charsets">Extensible Markup
* Language (XML) 1.0 (Third Edition)2.2 Characters</a>
*/
static inline bool isValidXML10Char(const qint32 cp)
{
/* [2] Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] |
* [#xE000-#xFFFD] | [#x10000-#x10FFFF]
*/
return (cp == 0x9 ||
cp == 0xA ||
cp == 0xD ||
(0x20 <= cp && cp <= 0xD7FF) ||
(0xE000 <= cp && cp <= 0xFFFD) ||
(0x10000 <= cp && cp <= 0x10FFFF));
}
Item CodepointsToStringFN::evaluateSingleton(const DynamicContext::Ptr &context) const
{
const Item::Iterator::Ptr it(m_operands.first()->evaluateSequence(context));
if(!it)
return CommonValues::EmptyString;
QString retval;
Item item(it->next());
while(item)
{
const qint32 cp = static_cast<qint32>(item.as<Numeric>()->toInteger());
if(!isValidXML10Char(cp))
{
context->error(QtXmlPatterns::tr("%1 is not a valid XML 1.0 character.")
.arg(formatData(QLatin1String("0x") +
QString::number(cp, 16))),
ReportContext::FOCH0001, this);
return CommonValues::EmptyString;
}
retval.append(QChar(cp));
item = it->next();
}
return AtomicString::fromValue(retval);
}
Item::Iterator::Ptr StringToCodepointsFN::evaluateSequence(const DynamicContext::Ptr &context) const
{
const Item item(m_operands.first()->evaluateSingleton(context));
if(!item)
return CommonValues::emptyIterator;
const QString str(item.stringValue());
if(str.isEmpty())
return CommonValues::emptyIterator;
else
return Item::Iterator::Ptr(new ToCodepointsIterator(str));
}
QT_END_NAMESPACE
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