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

1 files changed, 230 insertions, 0 deletions

diff --git a/src/xmlpatterns/functions/qpatternmatchingfns.cpp b/src/xmlpatterns/functions/qpatternmatchingfns.cpp
new file mode 100644
index 0000000..ca14d9b
--- /dev/null
+++ b/src/xmlpatterns/functions/qpatternmatchingfns.cpp
@@ -0,0 +1,230 @@
+/****************************************************************************
+**
+** 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 <QStringList>
+
+#include "qboolean_p.h"
+#include "qcommonvalues_p.h"
+#include "qitemmappingiterator_p.h"
+#include "qpatternistlocale_p.h"
+#include "qatomicstring_p.h"
+
+#include "qpatternmatchingfns_p.h"
+
+QT_BEGIN_NAMESPACE
+
+using namespace QPatternist;
+
+MatchesFN::MatchesFN() : PatternPlatform(2)
+{
+}
+
+Item MatchesFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const QRegExp regexp(pattern(context));
+    QString input;
+
+    const Item arg(m_operands.first()->evaluateSingleton(context));
+    if(arg)
+        input = arg.stringValue();
+
+    return Boolean::fromValue(input.contains(regexp));
+}
+
+ReplaceFN::ReplaceFN() : PatternPlatform(3)
+{
+}
+
+Item ReplaceFN::evaluateSingleton(const DynamicContext::Ptr &context) const
+{
+    const QRegExp regexp(pattern(context));
+    QString input;
+
+    const Item arg(m_operands.first()->evaluateSingleton(context));
+    if(arg)
+        input = arg.stringValue();
+
+    const QString replacement(m_replacementString.isNull() ? parseReplacement(regexp.captureCount(), context)
+                                                           : m_replacementString);
+
+
+    return AtomicString::fromValue(input.replace(regexp, replacement));
+}
+
+QString ReplaceFN::errorAtEnd(const char ch)
+{
+    return QtXmlPatterns::tr("%1 must be followed by %2 or %3, not at "
+                             "the end of the replacement string.")
+                             .arg(formatKeyword(QLatin1Char(ch)))
+                             .arg(formatKeyword(QLatin1Char('\\')))
+                             .arg(formatKeyword(QLatin1Char('$')));
+}
+
+QString ReplaceFN::parseReplacement(const int,
+                                    const DynamicContext::Ptr &context) const
+{
+    // TODO what if there is no groups, can one rewrite to the replacement then?
+    const QString input(m_operands.at(2)->evaluateSingleton(context).stringValue());
+
+    QString retval;
+    retval.reserve(input.size());
+    const int len = input.length();
+
+    for(int i = 0; i < len; ++i)
+    {
+        const QChar ch(input.at(i));
+        switch(ch.toAscii())
+        {
+            case '$':
+            {
+                /* QRegExp uses '\' as opposed to '$' for marking sub groups. */
+                retval.append(QLatin1Char('\\'));
+
+                ++i;
+                if(i == len)
+                {
+                    context->error(errorAtEnd('$'), ReportContext::FORX0004, this);
+                    return QString();
+                }
+
+                const QChar nextCh(input.at(i));
+                if(nextCh.isDigit())
+                    retval.append(nextCh);
+                else
+                {
+                    context->error(QtXmlPatterns::tr("In the replacement string, %1 must be "
+                                                     "followed by at least one digit when not escaped.")
+                                                     .arg(formatKeyword(QLatin1Char('$'))),
+                                                ReportContext::FORX0004, this);
+                    return QString();
+                }
+
+                break;
+            }
+            case '\\':
+            {
+                ++i;
+                if(i == len)
+                {
+                    /* error, we've reached the end. */;
+                    context->error(errorAtEnd('\\'), ReportContext::FORX0004, this);
+                }
+
+                const QChar nextCh(input.at(i));
+                if(nextCh == QLatin1Char('\\') || nextCh == QLatin1Char('$'))
+                {
+                    retval.append(ch);
+                    break;
+                }
+                else
+                {
+                    context->error(QtXmlPatterns::tr("In the replacement string, %1 can only be used to "
+                                                     "escape itself or %2, not %3")
+                                                     .arg(formatKeyword(QLatin1Char('\\')))
+                                                     .arg(formatKeyword(QLatin1Char('$')))
+                                                     .arg(formatKeyword(nextCh)),
+                                               ReportContext::FORX0004, this);
+                    return QString();
+                }
+            }
+            default:
+                retval.append(ch);
+        }
+    }
+
+    return retval;
+}
+
+Expression::Ptr ReplaceFN::compress(const StaticContext::Ptr &context)
+{
+    const Expression::Ptr me(PatternPlatform::compress(context));
+
+    if(me != this)
+        return me;
+
+    if(m_operands.at(2)->is(IDStringValue))
+    {
+        const int capt = captureCount();
+        if(capt == -1)
+            return me;
+        else
+            m_replacementString = parseReplacement(captureCount(), context->dynamicContext());
+    }
+
+    return me;
+}
+
+TokenizeFN::TokenizeFN() : PatternPlatform(2)
+{
+}
+
+/**
+ * Used by QAbstractXmlForwardIterator.
+ */
+static inline bool qIsForwardIteratorEnd(const QString &item)
+{
+    return item.isNull();
+}
+
+Item TokenizeFN::mapToItem(const QString &subject, const DynamicContext::Ptr &) const
+{
+    return AtomicString::fromValue(subject);
+}
+
+Item::Iterator::Ptr TokenizeFN::evaluateSequence(const DynamicContext::Ptr &context) const
+{
+    const Item arg(m_operands.first()->evaluateSingleton(context));
+    if(!arg)
+        return CommonValues::emptyIterator;
+
+    const QString input(arg.stringValue());
+    if(input.isEmpty())
+        return CommonValues::emptyIterator;
+
+    const QRegExp regExp(pattern(context));
+    const QStringList result(input.split(regExp, QString::KeepEmptyParts));
+
+    return makeItemMappingIterator<Item>(ConstPtr(this),
+                                         makeListIterator(result),
+                                         DynamicContext::Ptr());
+}
+
+QT_END_NAMESPACE