summaryrefslogtreecommitdiffstats
path: root/examples/widgets/tools/regularexpression/regularexpressiondialog.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'examples/widgets/tools/regularexpression/regularexpressiondialog.cpp')
-rw-r--r--examples/widgets/tools/regularexpression/regularexpressiondialog.cpp349
1 files changed, 349 insertions, 0 deletions
diff --git a/examples/widgets/tools/regularexpression/regularexpressiondialog.cpp b/examples/widgets/tools/regularexpression/regularexpressiondialog.cpp
new file mode 100644
index 0000000000..d40b4b325d
--- /dev/null
+++ b/examples/widgets/tools/regularexpression/regularexpressiondialog.cpp
@@ -0,0 +1,349 @@
+/****************************************************************************
+**
+** Copyright (C) 2015 Klarälvdalens Datakonsult AB, a KDAB Group company, info@kdab.com, author Giuseppe D'Angelo <giuseppe.dangelo@kdab.com>
+** Copyright (C) 2015 Samuel Gaist <samuel.gaist@edeltech.ch>
+** Copyright (C) 2015 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of The Qt Company Ltd nor the names of its
+** contributors may be used to endorse or promote products derived
+** from this software without specific prior written permission.
+**
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "regularexpressiondialog.h"
+
+#include <QApplication>
+
+#include <QCheckBox>
+#include <QComboBox>
+#include <QLabel>
+#include <QLineEdit>
+#include <QSpinBox>
+#include <QPlainTextEdit>
+#include <QTreeWidget>
+
+#include <QAction>
+#include <QClipboard>
+
+#include <QHBoxLayout>
+#include <QGridLayout>
+#include <QFormLayout>
+
+#include <QRegularExpression>
+#include <QRegularExpressionMatch>
+#include <QRegularExpressionMatchIterator>
+
+Q_DECLARE_METATYPE(QRegularExpression::MatchType)
+
+RegularExpressionDialog::RegularExpressionDialog(QWidget *parent)
+ : QDialog(parent)
+{
+ setupUi();
+ setWindowTitle(tr("QRegularExpression Example"));
+
+ connect(patternLineEdit, &QLineEdit::textChanged, this, &RegularExpressionDialog::refresh);
+ connect(subjectTextEdit, &QPlainTextEdit::textChanged, this, &RegularExpressionDialog::refresh);
+
+ connect(caseInsensitiveOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(dotMatchesEverythingOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(multilineOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(extendedPatternSyntaxOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(invertedGreedinessOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(dontCaptureOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(useUnicodePropertiesOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(optimizeOnFirstUsageOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(dontAutomaticallyOptimizeOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+
+ connect(offsetSpinBox, static_cast<void (QSpinBox::*)(int)>(&QSpinBox::valueChanged),
+ this, &RegularExpressionDialog::refresh);
+
+ connect(matchTypeComboBox, static_cast<void (QComboBox::*)(int)>(&QComboBox::currentIndexChanged),
+ this, &RegularExpressionDialog::refresh);
+
+ connect(anchoredMatchOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+ connect(dontCheckSubjectStringMatchOptionCheckBox, &QCheckBox::toggled, this, &RegularExpressionDialog::refresh);
+
+ patternLineEdit->setText(tr("(\\+?\\d+)-(?<prefix>\\d+)-(?<number>\\w+)"));
+ subjectTextEdit->setPlainText(tr("My office number is +43-152-0123456, my mobile is 001-41-255512 instead."));
+
+ refresh();
+}
+
+void RegularExpressionDialog::refresh()
+{
+ setUpdatesEnabled(false);
+
+ const QString pattern = patternLineEdit->text();
+ const QString text = subjectTextEdit->toPlainText();
+
+ offsetSpinBox->setMaximum(qMax(0, text.length() - 1));
+
+ QString escaped = pattern;
+ escaped.replace(QLatin1String("\\"), QLatin1String("\\\\"));
+ escaped.replace(QLatin1String("\""), QLatin1String("\\\""));
+ escaped.prepend(QLatin1String("\""));
+ escaped.append(QLatin1String("\""));
+ escapedPatternLineEdit->setText(escaped);
+
+ QRegularExpression rx(pattern);
+ QRegularExpression::MatchType matchType = matchTypeComboBox->currentData().value<QRegularExpression::MatchType>();
+ QRegularExpression::PatternOptions patternOptions = QRegularExpression::NoPatternOption;
+ QRegularExpression::MatchOptions matchOptions = QRegularExpression::NoMatchOption;
+
+ if (anchoredMatchOptionCheckBox->isChecked())
+ matchOptions |= QRegularExpression::AnchoredMatchOption;
+ if (dontCheckSubjectStringMatchOptionCheckBox->isChecked())
+ matchOptions |= QRegularExpression::DontCheckSubjectStringMatchOption;
+
+ if (caseInsensitiveOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::CaseInsensitiveOption;
+ if (dotMatchesEverythingOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::DotMatchesEverythingOption;
+ if (multilineOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::MultilineOption;
+ if (extendedPatternSyntaxOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::ExtendedPatternSyntaxOption;
+ if (invertedGreedinessOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::InvertedGreedinessOption;
+ if (dontCaptureOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::DontCaptureOption;
+ if (useUnicodePropertiesOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::UseUnicodePropertiesOption;
+ if (optimizeOnFirstUsageOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::OptimizeOnFirstUsageOption;
+ if (dontAutomaticallyOptimizeOptionCheckBox->isChecked())
+ patternOptions |= QRegularExpression::DontAutomaticallyOptimizeOption;
+
+ rx.setPatternOptions(patternOptions);
+
+ QPalette palette = patternLineEdit->palette();
+ if (rx.isValid())
+ palette.setColor(QPalette::Text, subjectTextEdit->palette().color(QPalette::Text));
+ else
+ palette.setColor(QPalette::Text, Qt::red);
+ patternLineEdit->setPalette(palette);
+
+ matchDetailsTreeWidget->clear();
+ matchDetailsTreeWidget->setEnabled(rx.isValid());
+
+ if (rx.isValid()) {
+ const int capturingGroupsCount = rx.captureCount() + 1;
+
+ QRegularExpressionMatchIterator iterator = rx.globalMatch(text, offsetSpinBox->value(), matchType, matchOptions);
+ int i = 0;
+
+ while (iterator.hasNext()) {
+ QRegularExpressionMatch match = iterator.next();
+
+ QTreeWidgetItem *matchDetailTopItem = new QTreeWidgetItem(matchDetailsTreeWidget);
+ matchDetailTopItem->setText(0, QString::number(i));
+
+ for (int captureGroupIndex = 0; captureGroupIndex < capturingGroupsCount; ++captureGroupIndex) {
+ QTreeWidgetItem *matchDetailItem = new QTreeWidgetItem(matchDetailTopItem);
+ matchDetailItem->setText(1, QString::number(captureGroupIndex));
+ matchDetailItem->setText(2, match.captured(captureGroupIndex));
+ }
+
+ ++i;
+ }
+ }
+
+ matchDetailsTreeWidget->expandAll();
+
+ namedGroupsTreeWidget->clear();
+ namedGroupsTreeWidget->setEnabled(rx.isValid());
+
+ if (rx.isValid()) {
+ regexpStatusLabel->setText(tr("Valid"));
+
+ const QStringList namedCaptureGroups = rx.namedCaptureGroups();
+ for (int i = 0; i < namedCaptureGroups.size(); ++i) {
+ const QString currentNamedCaptureGroup = namedCaptureGroups.at(i);
+
+ QTreeWidgetItem *namedGroupItem = new QTreeWidgetItem(namedGroupsTreeWidget);
+ namedGroupItem->setText(0, QString::number(i));
+ namedGroupItem->setText(1, currentNamedCaptureGroup.isNull() ? tr("<no name>") : currentNamedCaptureGroup);
+ }
+ } else {
+ regexpStatusLabel->setText(tr("Invalid: syntax error at position %1 (%2)")
+ .arg(rx.patternErrorOffset())
+ .arg(rx.errorString()));
+ }
+
+ setUpdatesEnabled(true);
+}
+
+void RegularExpressionDialog::copyEscapedPatternToClipboard()
+{
+#ifndef QT_NO_CLIPBOARD
+ QClipboard *clipboard = QGuiApplication::clipboard();
+ if (clipboard)
+ clipboard->setText(escapedPatternLineEdit->text());
+#endif
+}
+
+void RegularExpressionDialog::setupUi()
+{
+ QWidget *leftHalfContainer = setupLeftUi();
+
+ QFrame *verticalSeparator = new QFrame;
+ verticalSeparator->setFrameStyle(QFrame::VLine | QFrame::Sunken);
+
+ QWidget *rightHalfContainer = setupRightUi();
+
+ QHBoxLayout *mainLayout = new QHBoxLayout;
+ mainLayout->addWidget(leftHalfContainer);
+ mainLayout->addWidget(verticalSeparator);
+ mainLayout->addWidget(rightHalfContainer);
+
+ setLayout(mainLayout);
+}
+
+QWidget *RegularExpressionDialog::setupLeftUi()
+{
+ QWidget *container = new QWidget;
+
+ QFormLayout *layout = new QFormLayout(container);
+ layout->setFieldGrowthPolicy(QFormLayout::AllNonFixedFieldsGrow);
+ layout->setMargin(0);
+
+ QLabel *regexpAndSubjectLabel = new QLabel(tr("<h3>Regular expression and text input</h3>"));
+ layout->addRow(regexpAndSubjectLabel);
+
+ patternLineEdit = new QLineEdit;
+ patternLineEdit->setClearButtonEnabled(true);
+ layout->addRow(tr("&Pattern:"), patternLineEdit);
+
+ escapedPatternLineEdit = new QLineEdit;
+ escapedPatternLineEdit->setReadOnly(true);
+ QPalette palette = escapedPatternLineEdit->palette();
+ palette.setBrush(QPalette::Base, palette.brush(QPalette::Disabled, QPalette::Base));
+ escapedPatternLineEdit->setPalette(palette);
+
+#ifndef QT_NO_CLIPBOARD
+ QAction *copyEscapedPatternAction = new QAction(this);
+ copyEscapedPatternAction->setText(tr("Copy to clipboard"));
+ copyEscapedPatternAction->setIcon(QIcon(QStringLiteral(":/images/copy.png")));
+ connect(copyEscapedPatternAction, &QAction::triggered, this, &RegularExpressionDialog::copyEscapedPatternToClipboard);
+ escapedPatternLineEdit->addAction(copyEscapedPatternAction, QLineEdit::TrailingPosition);
+#endif
+
+ layout->addRow(tr("&Escaped pattern:"), escapedPatternLineEdit);
+
+ subjectTextEdit = new QPlainTextEdit;
+ layout->addRow(tr("&Subject text:"), subjectTextEdit);
+
+ caseInsensitiveOptionCheckBox = new QCheckBox(tr("Case insensitive (/i)"));
+ dotMatchesEverythingOptionCheckBox = new QCheckBox(tr("Dot matches everything (/s)"));
+ multilineOptionCheckBox = new QCheckBox(tr("Multiline (/m)"));
+ extendedPatternSyntaxOptionCheckBox = new QCheckBox(tr("Extended pattern (/x)"));
+ invertedGreedinessOptionCheckBox = new QCheckBox(tr("Inverted greediness"));
+ dontCaptureOptionCheckBox = new QCheckBox(tr("Don't capture"));
+ useUnicodePropertiesOptionCheckBox = new QCheckBox(tr("Use unicode properties (/u)"));
+ optimizeOnFirstUsageOptionCheckBox = new QCheckBox(tr("Optimize on first usage"));
+ dontAutomaticallyOptimizeOptionCheckBox = new QCheckBox(tr("Don't automatically optimize"));
+
+ QGridLayout *patternOptionsCheckBoxLayout = new QGridLayout;
+ int gridRow = 0;
+ patternOptionsCheckBoxLayout->addWidget(caseInsensitiveOptionCheckBox, gridRow, 1);
+ patternOptionsCheckBoxLayout->addWidget(dotMatchesEverythingOptionCheckBox, gridRow, 2);
+ ++gridRow;
+ patternOptionsCheckBoxLayout->addWidget(multilineOptionCheckBox, gridRow, 1);
+ patternOptionsCheckBoxLayout->addWidget(extendedPatternSyntaxOptionCheckBox, gridRow, 2);
+ ++gridRow;
+ patternOptionsCheckBoxLayout->addWidget(invertedGreedinessOptionCheckBox, gridRow, 1);
+ patternOptionsCheckBoxLayout->addWidget(dontCaptureOptionCheckBox, gridRow, 2);
+ ++gridRow;
+ patternOptionsCheckBoxLayout->addWidget(useUnicodePropertiesOptionCheckBox, gridRow, 1);
+ patternOptionsCheckBoxLayout->addWidget(optimizeOnFirstUsageOptionCheckBox, gridRow, 2);
+ ++gridRow;
+ patternOptionsCheckBoxLayout->addWidget(dontAutomaticallyOptimizeOptionCheckBox, gridRow, 1);
+
+ layout->addRow(tr("Pattern options:"), patternOptionsCheckBoxLayout);
+
+ offsetSpinBox = new QSpinBox;
+ layout->addRow(tr("Match &offset:"), offsetSpinBox);
+
+ matchTypeComboBox = new QComboBox;
+ matchTypeComboBox->addItem(tr("Normal"), QVariant::fromValue(QRegularExpression::NormalMatch));
+ matchTypeComboBox->addItem(tr("Partial prefer complete"), QVariant::fromValue(QRegularExpression::PartialPreferCompleteMatch));
+ matchTypeComboBox->addItem(tr("Partial prefer first"), QVariant::fromValue(QRegularExpression::PartialPreferFirstMatch));
+ matchTypeComboBox->addItem(tr("No match"), QVariant::fromValue(QRegularExpression::NoMatch));
+ layout->addRow(tr("Match &type:"), matchTypeComboBox);
+
+ dontCheckSubjectStringMatchOptionCheckBox = new QCheckBox(tr("Don't check subject string"));
+ anchoredMatchOptionCheckBox = new QCheckBox(tr("Anchored match"));
+
+ QGridLayout *matchOptionsCheckBoxLayout = new QGridLayout;
+ matchOptionsCheckBoxLayout->addWidget(dontCheckSubjectStringMatchOptionCheckBox, 0, 0);
+ matchOptionsCheckBoxLayout->addWidget(anchoredMatchOptionCheckBox, 0, 1);
+ layout->addRow(tr("Match options:"), matchOptionsCheckBoxLayout);
+
+ return container;
+}
+
+QWidget *RegularExpressionDialog::setupRightUi()
+{
+ QWidget *container = new QWidget;
+
+ QFormLayout *layout = new QFormLayout(container);
+ layout->setFieldGrowthPolicy(QFormLayout::AllNonFixedFieldsGrow);
+ layout->setMargin(0);
+
+ QLabel *matchInfoLabel = new QLabel(tr("<h3>Match information</h3>"));
+ layout->addRow(matchInfoLabel);
+
+ matchDetailsTreeWidget = new QTreeWidget;
+ matchDetailsTreeWidget->setHeaderLabels(QStringList() << tr("Match index") << tr("Group index") << tr("Captured string"));
+ matchDetailsTreeWidget->setSizeAdjustPolicy(QTreeWidget::AdjustToContents);
+ layout->addRow(tr("Match details:"), matchDetailsTreeWidget);
+
+ QFrame *horizontalSeparator = new QFrame;
+ horizontalSeparator->setFrameStyle(QFrame::HLine | QFrame::Sunken);
+ layout->addRow(horizontalSeparator);
+
+ QLabel *regexpInfoLabel = new QLabel(tr("<h3>Regular expression information</h3>"));
+ layout->addRow(regexpInfoLabel);
+
+ regexpStatusLabel = new QLabel(tr("Valid"));
+ regexpStatusLabel->setWordWrap(true);
+ layout->addRow(tr("Pattern status:"), regexpStatusLabel);
+
+ namedGroupsTreeWidget = new QTreeWidget;
+ namedGroupsTreeWidget->setHeaderLabels(QStringList() << tr("Index") << tr("Named group"));
+ namedGroupsTreeWidget->setSizeAdjustPolicy(QTreeWidget::AdjustToContents);
+ namedGroupsTreeWidget->setRootIsDecorated(false);
+ layout->addRow(tr("Named groups:"), namedGroupsTreeWidget);
+
+ return container;
+}