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/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: Qt Software Information (qt-info@nokia.com)
**
** Commercial Usage
**
** Licensees holding valid Qt Commercial licenses may use this file in
** accordance with the Qt Commercial License Agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Nokia.
**
** GNU Lesser General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file. Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
** If you are unsure which license is appropriate for your use, please
** contact the sales department at qt-sales@nokia.com.
**
**************************************************************************/
#include "javascriptengine_p.h"
#include "javascriptnodepool_p.h"
#include "javascriptvalue.h"
#include <qnumeric.h>
#include <QHash>
QT_BEGIN_NAMESPACE
namespace JavaScript {
QString numberToString(qjsreal value)
{ return QString::number(value); }
int Ecma::RegExp::flagFromChar(const QChar &ch)
{
static QHash<QChar, int> flagsHash;
if (flagsHash.isEmpty()) {
flagsHash[QLatin1Char('g')] = Global;
flagsHash[QLatin1Char('i')] = IgnoreCase;
flagsHash[QLatin1Char('m')] = Multiline;
}
QHash<QChar, int>::const_iterator it;
it = flagsHash.constFind(ch);
if (it == flagsHash.constEnd())
return 0;
return it.value();
}
QString Ecma::RegExp::flagsToString(int flags)
{
QString result;
if (flags & Global)
result += QLatin1Char('g');
if (flags & IgnoreCase)
result += QLatin1Char('i');
if (flags & Multiline)
result += QLatin1Char('m');
return result;
}
NodePool::NodePool(const QString &fileName, JavaScriptEnginePrivate *engine)
: m_fileName(fileName), m_engine(engine)
{
}
NodePool::~NodePool()
{
}
Code *NodePool::createCompiledCode(AST::Node *, CompilationUnit &)
{
Q_ASSERT(0);
return 0;
}
static int toDigit(char c)
{
if ((c >= '0') && (c <= '9'))
return c - '0';
else if ((c >= 'a') && (c <= 'z'))
return 10 + c - 'a';
else if ((c >= 'A') && (c <= 'Z'))
return 10 + c - 'A';
return -1;
}
qjsreal integerFromString(const char *buf, int size, int radix)
{
if (size == 0)
return qSNaN();
qjsreal sign = 1.0;
int i = 0;
if (buf[0] == '+') {
++i;
} else if (buf[0] == '-') {
sign = -1.0;
++i;
}
if (((size-i) >= 2) && (buf[i] == '0')) {
if (((buf[i+1] == 'x') || (buf[i+1] == 'X'))
&& (radix < 34)) {
if ((radix != 0) && (radix != 16))
return 0;
radix = 16;
i += 2;
} else {
if (radix == 0) {
radix = 8;
++i;
}
}
} else if (radix == 0) {
radix = 10;
}
int j = i;
for ( ; i < size; ++i) {
int d = toDigit(buf[i]);
if ((d == -1) || (d >= radix))
break;
}
qjsreal result;
if (j == i) {
if (!qstrcmp(buf, "Infinity"))
result = qInf();
else
result = qSNaN();
} else {
result = 0;
qjsreal multiplier = 1;
for (--i ; i >= j; --i, multiplier *= radix)
result += toDigit(buf[i]) * multiplier;
}
result *= sign;
return result;
}
qjsreal integerFromString(const QString &str, int radix)
{
QByteArray ba = str.trimmed().toUtf8();
return integerFromString(ba.constData(), ba.size(), radix);
}
} // end of namespace JavaScript
QT_END_NAMESPACE
|
