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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 <QtGlobal>
#include "qbase64binary_p.h"
#include "qbuiltintypes_p.h"
#include "qpatternistlocale_p.h"
#include "qvalidationerror_p.h"
#include "qhexbinary_p.h"
QT_BEGIN_NAMESPACE
using namespace QPatternist;
HexBinary::HexBinary(const QByteArray &val) : Base64Binary(val)
{
}
qint8 HexBinary::fromHex(const QChar &c)
{
if(c.unicode() > 'f')
return -1;
const char *const range = "0123456789ABCDEFabcdef";
const char *const in = strchr(range, c.unicode());
if(!in)
return -1;
/* Pointer arithmetic. */
int digit = in - range;
if(digit > 15)
digit -= 6;
return digit;
}
AtomicValue::Ptr HexBinary::fromLexical(const NamePool::Ptr &np, const QString &str)
{
const QString lexical(str.trimmed());
const int len = lexical.length();
if(len == 0)
return AtomicValue::Ptr(new HexBinary(QByteArray()));
if((len & 1) != 0)
{
/* Catch a common case. */
return ValidationError::createError(QtXmlPatterns::tr(
"A value of type %1 must contain an even number of "
"digits. The value %2 does not.")
.arg(formatType(np, BuiltinTypes::xsHexBinary),
formatData(QString::number(len))));
}
QByteArray val;
val.resize(len / 2);
for(int i = 0; i < len / 2; ++i)
{
qint8 p1 = fromHex(lexical[i * 2]);
qint8 p2 = fromHex(lexical[i * 2 + 1]);
if(p1 == -1 || p2 == -1)
{
const QString hex(QString::fromLatin1("%1%2").arg(lexical[i * 2], lexical[i * 2 + 1]));
return ValidationError::createError(QtXmlPatterns::tr(
"%1 is not valid as a value of type %2.")
.arg(formatData(hex),
formatType(np, BuiltinTypes::xsHexBinary)));
}
val[i] = static_cast<char>(p1 * 16 + p2);
}
Q_ASSERT(!val.isEmpty());
return AtomicValue::Ptr(new HexBinary(val));
}
HexBinary::Ptr HexBinary::fromValue(const QByteArray &data)
{
return HexBinary::Ptr(new HexBinary(data));
}
QString HexBinary::stringValue() const
{
static const char s_toHex[] = "0123456789ABCDEF";
const int len = m_value.count();
QString result;
result.reserve(len * 2);
for(int i = 0; i < len; ++i)
{
// This cast is significant.
const unsigned char val = static_cast<unsigned char>(m_value.at(i));
result += QLatin1Char(s_toHex[val >> 4]);
result += QLatin1Char(s_toHex[val & 0x0F]);
}
return result;
}
ItemType::Ptr HexBinary::type() const
{
return BuiltinTypes::xsHexBinary;
}
QT_END_NAMESPACE
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