Initial import from the monolithic Qt.

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Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 373 insertions, 0 deletions

diff --git a/src/xmlpatterns/functions/qstringvaluefns.cpp b/src/xmlpatterns/functions/qstringvaluefns.cpp
new file mode 100644
index 0000000..8752c7a
--- /dev/null
+++ b/src/xmlpatterns/functions/qstringvaluefns.cpp
@@ -0,0 +1,373 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtXmlPatterns module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** 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.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qabstractfloat_p.h"
+#include "qatomicstring_p.h"
+#include "qcommonsequencetypes_p.h"
+#include "qcommonvalues_p.h"
+#include "qinteger_p.h"
+#include "qliteral_p.h"
+#include "qpatternistlocale_p.h"
+#include "qschemanumeric_p.h"
+
+#include "qstringvaluefns_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+Item ConcatFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Expression::List::const_iterator end(m_operands.constEnd());
+    Expression::List::const_iterator it(m_operands.constBegin());
+    QString result;
+
+    for(; it != end; ++it)
+    {
+        Item item((*it)->evaluateSingleton(context));
+
+        if(item)
+            result += item.stringValue();
+    }
+
+    return AtomicString::fromValue(result);
+}
+
+Item StringJoinFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    Item::Iterator::Ptr it(m_operands.first()->evaluateSequence(context));
+    Q_ASSERT(it);
+    Item current(it->next());
+
+    if(!current) /* Exit early, don't evaluate the separator. */
+        return CommonValues::EmptyString;
+
+    QString result;
+    QString separator;
+    const Item isep(m_operands.at(1)->evaluateSingleton(context));
+
+    if(isep)
+        separator = isep.stringValue();
+
+    while(true)
+    {
+        result += current.stringValue();
+        current = it->next();
+
+        if(!current)
+            break;
+
+        result += separator;
+    }
+
+    return result.isEmpty()
+            ? toItem(CommonValues::EmptyString)
+            : toItem(AtomicString::fromValue(result));
+}
+
+Expression::Ptr StringJoinFN::compress(const StaticContext::Ptr &context)
+{
+    if(m_operands.first()->staticType()->cardinality().allowsMany())
+        return FunctionCall::compress(context);
+    else
+    {
+        if(m_operands.first()->is(IDEmptySequence))
+            return wrapLiteral(CommonValues::EmptyString, context, this);
+        else
+            return m_operands.first()->compress(context);
+    }
+}
+
+Item SubstringFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    Item item(m_operands.first()->evaluateSingleton(context));
+
+    if(!item)
+        return CommonValues::EmptyString;
+
+    const QString str(item.stringValue());
+
+    const xsDouble dblStart = m_operands.at(1)->evaluateSingleton(context).as<Numeric>()
+                                        ->round()->toDouble();
+    if(qIsNaN(dblStart))
+        return CommonValues::EmptyString;
+
+    /* XPath starts from 1, but C++ starts from 0. */
+    xsInteger startingLoc = Double::fromValue(dblStart)->round()->toInteger() - 1;
+
+    xsInteger length = 0;
+    if(m_operands.count() == 2)
+        length = str.length() - startingLoc;
+    else
+    {
+        const xsDouble dblLen = m_operands.at(2)->evaluateSingleton(context).as<Numeric>()
+                ->round()->toDouble();
+
+        if(qIsNaN(dblLen))
+            return CommonValues::EmptyString;
+
+        length = Double::fromValue(dblLen)->round()->toInteger();
+        if(startingLoc > startingLoc + length)
+            return CommonValues::EmptyString;
+    }
+
+    if(startingLoc < 0)
+    {
+        length = length + startingLoc;
+        startingLoc = 0;
+    }
+
+    return AtomicString::fromValue(str.mid(startingLoc, length));
+}
+
+Item StringLengthFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item item(m_operands.first()->evaluateSingleton(context));
+
+    /* fn:string() is re-implemented "inline" here. */
+    if(item)
+        return Integer::fromValue(item.stringValue().length());
+    else
+        return CommonValues::IntegerZero;
+}
+
+NormalizeUnicodeFN::NormalizeUnicodeFN() : m_normForm(QString::NormalizationForm_C)
+{
+}
+
+Item NormalizeSpaceFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item arg(m_operands.first()->evaluateSingleton(context));
+
+    if(!arg)
+        return CommonValues::EmptyString;
+
+    return toItem(AtomicString::fromValue(arg.stringValue().simplified()));
+}
+
+Item NormalizeUnicodeFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item arg(m_operands.first()->evaluateSingleton(context));
+
+    if(!arg)
+        return CommonValues::EmptyString;
+
+    int normForm;
+
+    /* The second argument has been removed, if we've already determined the form. */
+    if(m_operands.count() == 1)
+        normForm = m_normForm;
+    else
+    {
+        normForm = determineNormalizationForm(context);
+        if(normForm == -1)
+            return toItem(AtomicString::fromValue(arg.stringValue()));
+    }
+
+    return AtomicString::fromValue(arg.stringValue().normalized(
+            static_cast<QString::NormalizationForm>(normForm)));
+}
+
+Expression::Ptr NormalizeUnicodeFN::compress(const StaticContext::Ptr &context)
+{
+    const Expression::Ptr me(FunctionCall::compress(context));
+    if(me != this)
+        return me;
+
+    Q_ASSERT(m_operands.count() == 1 || m_operands.count() == 2);
+
+    if(m_operands.count() == 1)
+        m_normForm = QString::NormalizationForm_C;
+    else if(m_operands.last()->is(IDStringValue))
+    {
+        m_normForm = static_cast<QString::NormalizationForm>(
+                determineNormalizationForm(context->dynamicContext()));
+
+        if(m_normForm == -1)
+            return m_operands.first();
+
+        /* Remove the operand since we don't need it anymore. */
+        m_operands.removeLast();
+    }
+
+    return me;
+}
+
+int NormalizeUnicodeFN::determineNormalizationForm(const DynamicContext::Ptr &context) const
+{
+    const QString strRepr(m_operands.last()->evaluateSingleton(context).stringValue().trimmed().toUpper());
+
+    /* TODO. Put these values in a QHash for faster lookup. Keep thread safety in mind. */
+    if(strRepr.isEmpty())
+        return -1;
+    else if(strRepr == QLatin1String("NFC"))
+        return QString::NormalizationForm_C;
+    else if(strRepr == QLatin1String("NFD"))
+        return QString::NormalizationForm_D;
+    else if(strRepr == QLatin1String("NFKC"))
+        return QString::NormalizationForm_KC;
+    else if(strRepr == QLatin1String("NFKD"))
+        return QString::NormalizationForm_KD;
+    else
+    {
+        /* What form is FULLY_NORMALIZED? Is a code path available for that somewhere? */
+        context->error(QtXmlPatterns::tr("The normalization form %1 is "
+                                         "unsupported. The supported forms are "
+                                         "%2, %3, %4, and %5, and none, i.e. "
+                                         "the empty string (no normalization).")
+                                        .arg(formatKeyword(strRepr))
+                                        .arg(formatKeyword("NFC"))
+                                        .arg(formatKeyword("NFD"))
+                                        .arg(formatKeyword("NFKC"))
+                                        .arg(formatKeyword("NFKD")),
+                                   ReportContext::FOCH0003,
+                                   this);
+        return QString::NormalizationForm_C; /* Silence compiler warning. */
+    }
+}
+
+Item UpperCaseFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item item(m_operands.first()->evaluateSingleton(context));
+
+    if(!item)
+        return CommonValues::EmptyString;
+
+    return AtomicString::fromValue(item.stringValue().toUpper());
+}
+
+Item LowerCaseFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item item(m_operands.first()->evaluateSingleton(context));
+
+    if(!item)
+        return CommonValues::EmptyString;
+
+    return AtomicString::fromValue(item.stringValue().toLower());
+}
+
+Item TranslateFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item item(m_operands.first()->evaluateSingleton(context));
+
+    if(!item)
+        return CommonValues::EmptyString;
+
+    const QString mapString(m_operands.at(1)->evaluateSingleton(context).stringValue());
+    const QString arg(item.stringValue());
+
+    if(mapString.isEmpty())
+        return AtomicString::fromValue(arg);
+
+    const QString transString(m_operands.at(2)->evaluateSingleton(context).stringValue());
+    const int transLen = transString.length();
+    const int argLen = arg.length();
+
+    QString result;
+    result.reserve(argLen);
+    int outI = 0;
+
+    for(int i = 0; i < argLen; ++i)
+    {
+        const QChar argCh(arg.at(i));
+        const int mapPos = mapString.indexOf(argCh);
+
+        if(mapPos == -1)
+        {
+            result[outI] = argCh;
+            ++outI;
+            continue;
+        }
+        else if(mapPos >= transLen)
+            continue;
+
+        const QChar transCh(transString.at(mapPos));
+
+        if(transCh.isNull())
+            continue;
+
+        result[outI] = transCh;
+        ++outI;
+    }
+
+    result.truncate(outI);
+    return AtomicString::fromValue(result);
+}
+
+EncodeString::EncodeString(const QByteArray &excludeChars,
+                           const QByteArray &includeChars) : m_excludeChars(excludeChars),
+                                                             m_includeChars(includeChars)
+{
+}
+
+Item EncodeString::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const Item item(m_operands.first()->evaluateSingleton(context));
+
+    if(!item)
+        return CommonValues::EmptyString;
+
+    return AtomicString::fromValue(QString::fromAscii(QUrl::toPercentEncoding(item.stringValue(),
+                                                                        m_excludeChars,
+                                                                        m_includeChars).constData()));
+}
+
+const char *const EncodeForURIFN::include = "#!*'()";
+
+EncodeForURIFN::EncodeForURIFN() : EncodeString(QByteArray(), QByteArray::fromRawData(include, 6))
+{
+}
+
+const char *const IriToURIFN::exclude = "#-_!~*'();?@&=+$,[]/:%";
+
+IriToURIFN::IriToURIFN() : EncodeString(QByteArray::fromRawData(exclude, 22), QByteArray())
+{
+}
+
+const char *const EscapeHtmlURIFN::include = "?&[]%";
+const char *const EscapeHtmlURIFN::exclude = " :;=@!./+*()-,#$'";
+
+EscapeHtmlURIFN::EscapeHtmlURIFN() : EncodeString(QByteArray::fromRawData(exclude, 17),
+                                                  QByteArray::fromRawData(include, 6))
+{
+}
+
+QT_END_NAMESPACE