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-rw-r--r--src/highlighter.cc145
-rw-r--r--src/highlighter.h86
-rw-r--r--src/mainwindow.cc2
-rw-r--r--src/mainwindow.h2
4 files changed, 235 insertions, 0 deletions
diff --git a/src/highlighter.cc b/src/highlighter.cc
new file mode 100644
index 0000000..37259f6
--- /dev/null
+++ b/src/highlighter.cc
@@ -0,0 +1,145 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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.
+**
+** BSD License Usage
+** Alternatively, 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 "highlighter.h"
+
+Highlighter::Highlighter(QTextDocument *parent)
+ : QSyntaxHighlighter(parent)
+{
+ HighlightingRule rule;
+
+ keywordFormat.setForeground(Qt::darkBlue);
+ keywordFormat.setFontWeight(QFont::Bold);
+ QStringList keywordPatterns;
+
+ // Lua keywords
+ keywordPatterns << "\\band\\b" << "\\bbreak\\b" << "\\bdo\\b"
+ << "\\belse\\b" << "\\belseif\\b"
+ << "\\bend\\b" << "\\bfalse\\b" << "\\bfor\\b"
+ << "\\bfunction\\b" << "\\bif\\b"
+ << "\\bin\\b" << "\\blocal\\b" << "\\bnil\\b"
+ << "\\bnot\\b" << "\\bor\\b"
+ << "\\brepeat\\b"<< "\\breturn\\b" << "\\bthen\\b"
+ << "\\btrue\\b" << "\\buntil\\b" << "\\bwhile\\b";
+ foreach(const QString &pattern, keywordPatterns)
+ {
+ rule.pattern = QRegularExpression(pattern);
+ rule.format = keywordFormat;
+ highlightingRules.append(rule);
+ }
+
+ classFormat.setFontWeight(QFont::Bold);
+ classFormat.setForeground(Qt::darkMagenta);
+ rule.pattern = QRegularExpression("\\bQ[A-Za-z]+\\b");
+ rule.format = classFormat;
+ highlightingRules.append(rule);
+
+ singleLineCommentFormat.setForeground(Qt::red);
+ rule.pattern = QRegularExpression("--[^\n]*");
+ rule.format = singleLineCommentFormat;
+ highlightingRules.append(rule);
+
+ multiLineCommentFormat.setForeground(Qt::red);
+
+ quotationFormat.setForeground(Qt::darkGreen);
+ rule.pattern = QRegularExpression("\".*\"");
+ rule.format = quotationFormat;
+ highlightingRules.append(rule);
+
+ functionFormat.setFontItalic(true);
+ functionFormat.setForeground(Qt::blue);
+ rule.pattern = QRegularExpression("\\b[A-Za-z0-9_]+(?=\\()");
+ rule.format = functionFormat;
+ highlightingRules.append(rule);
+
+ commentStartExpression = QRegularExpression("--\\[\\[");
+ commentEndExpression = QRegularExpression("--\\]\\]");
+}
+
+void Highlighter::highlightBlock(const QString &text)
+{
+ foreach (const HighlightingRule &rule, highlightingRules)
+ {
+ QRegularExpressionMatchIterator matchIterator =
+ rule.pattern.globalMatch(text);
+ while(matchIterator.hasNext())
+ {
+ QRegularExpressionMatch match = matchIterator.next();
+ setFormat(match.capturedStart(), match.capturedLength(), rule.format);
+ }
+ }
+ setCurrentBlockState(0);
+
+ int startIndex = 0;
+ if(previousBlockState() != 1)
+ {
+ startIndex = text.indexOf(commentStartExpression);
+ }
+
+ while(startIndex >= 0)
+ {
+ QRegularExpressionMatch match =
+ commentEndExpression.match(text, startIndex);
+ int endIndex = match.capturedStart();
+ int commentLength = 0;
+ if(endIndex == -1)
+ {
+ setCurrentBlockState(1);
+ commentLength = text.length() - startIndex;
+ }
+ else
+ {
+ commentLength = endIndex - startIndex
+ + match.capturedLength();
+ }
+ setFormat(startIndex, commentLength, multiLineCommentFormat);
+ startIndex = text.indexOf(commentStartExpression,
+ startIndex + commentLength);
+ }
+}
diff --git a/src/highlighter.h b/src/highlighter.h
new file mode 100644
index 0000000..2cd4c2b
--- /dev/null
+++ b/src/highlighter.h
@@ -0,0 +1,86 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** 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.
+**
+** BSD License Usage
+** Alternatively, 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."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+#pragma once
+
+#include <QSyntaxHighlighter>
+#include <QTextCharFormat>
+#include <QRegularExpression>
+
+class QTextDocument;
+
+class Highlighter
+ : public QSyntaxHighlighter
+{
+ Q_OBJECT
+
+public:
+ Highlighter(QTextDocument *parent = 0);
+
+protected:
+ void highlightBlock(const QString &text) override;
+
+private:
+ struct HighlightingRule
+ {
+ QRegularExpression pattern;
+ QTextCharFormat format;
+ };
+ QVector<HighlightingRule> highlightingRules;
+
+ QRegularExpression commentStartExpression;
+ QRegularExpression commentEndExpression;
+
+ QTextCharFormat keywordFormat;
+ QTextCharFormat classFormat;
+ QTextCharFormat singleLineCommentFormat;
+ QTextCharFormat multiLineCommentFormat;
+ QTextCharFormat quotationFormat;
+ QTextCharFormat functionFormat;
+};
diff --git a/src/mainwindow.cc b/src/mainwindow.cc
index 1b7b37b..fa65cb5 100644
--- a/src/mainwindow.cc
+++ b/src/mainwindow.cc
@@ -56,6 +56,8 @@ MainWindow::MainWindow(QString p)
splitter->addWidget(editor);
connect(editor, SIGNAL(textChanged()), this, SLOT(programChanged()));
+ highlighter = new Highlighter(editor->document());
+
out = new OutputWindow();
splitter->addWidget(out);
diff --git a/src/mainwindow.h b/src/mainwindow.h
index 5311c68..a52ee2b 100644
--- a/src/mainwindow.h
+++ b/src/mainwindow.h
@@ -34,6 +34,7 @@
#include "codeeditor.h"
#include "outputwindow.h"
#include "luascript.h"
+#include "highlighter.h"
class QSplitter;
@@ -76,6 +77,7 @@ private:
QSplitter *splitter;
QFileSystemWatcher watcher;
+ Highlighter* highlighter;
QString program;
OutputWindow *out;
LUAScript *l;