| /**************************************************************************** |
| ** |
| ** 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 Qt Designer of the Qt Toolkit. |
| ** |
| ** $QT_BEGIN_LICENSE:LGPL$ |
| ** GNU Lesser General Public License Usage |
| ** 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. |
| ** |
| ** GNU General Public License Usage |
| ** Alternatively, this file may be used under the terms of the GNU General |
| ** Public License version 3.0 as published by the Free Software Foundation |
| ** and appearing in the file LICENSE.GPL included in the packaging of this |
| ** file. Please review the following information to ensure the GNU General |
| ** Public License version 3.0 requirements will be met: |
| ** http://www.gnu.org/copyleft/gpl.html. |
| ** |
| ** Other Usage |
| ** Alternatively, this file may be used in accordance with the terms and |
| ** conditions contained in a signed written agreement between you and Nokia. |
| ** |
| ** |
| ** |
| ** |
| ** |
| ** $QT_END_LICENSE$ |
| ** |
| ****************************************************************************/ |
| |
| #include <QtCore/QTextStream> |
| |
| #include "htmlhighlighter_p.h" |
| |
| QT_BEGIN_NAMESPACE |
| |
| namespace qdesigner_internal { |
| |
| HtmlHighlighter::HtmlHighlighter(QTextEdit *textEdit) |
| : QSyntaxHighlighter(textEdit) |
| { |
| QTextCharFormat entityFormat; |
| entityFormat.setForeground(Qt::red); |
| setFormatFor(Entity, entityFormat); |
| |
| QTextCharFormat tagFormat; |
| tagFormat.setForeground(Qt::darkMagenta); |
| tagFormat.setFontWeight(QFont::Bold); |
| setFormatFor(Tag, tagFormat); |
| |
| QTextCharFormat commentFormat; |
| commentFormat.setForeground(Qt::gray); |
| commentFormat.setFontItalic(true); |
| setFormatFor(Comment, commentFormat); |
| |
| QTextCharFormat attributeFormat; |
| attributeFormat.setForeground(Qt::black); |
| attributeFormat.setFontWeight(QFont::Bold); |
| setFormatFor(Attribute, attributeFormat); |
| |
| QTextCharFormat valueFormat; |
| valueFormat.setForeground(Qt::blue); |
| setFormatFor(Value, valueFormat); |
| } |
| |
| void HtmlHighlighter::setFormatFor(Construct construct, |
| const QTextCharFormat &format) |
| { |
| m_formats[construct] = format; |
| rehighlight(); |
| } |
| |
| void HtmlHighlighter::highlightBlock(const QString &text) |
| { |
| static const QLatin1Char tab = QLatin1Char('\t'); |
| static const QLatin1Char space = QLatin1Char(' '); |
| static const QLatin1Char amp = QLatin1Char('&'); |
| static const QLatin1Char startTag = QLatin1Char('<'); |
| static const QLatin1Char endTag = QLatin1Char('>'); |
| static const QLatin1Char quot = QLatin1Char('"'); |
| static const QLatin1Char apos = QLatin1Char('\''); |
| static const QLatin1Char semicolon = QLatin1Char(';'); |
| static const QLatin1Char equals = QLatin1Char('='); |
| static const QLatin1String startComment = QLatin1String("<!--"); |
| static const QLatin1String endComment = QLatin1String("-->"); |
| static const QLatin1String endElement = QLatin1String("/>"); |
| |
| int state = previousBlockState(); |
| int len = text.length(); |
| int start = 0; |
| int pos = 0; |
| |
| while (pos < len) { |
| switch (state) { |
| case NormalState: |
| default: |
| while (pos < len) { |
| QChar ch = text.at(pos); |
| if (ch == startTag) { |
| if (text.mid(pos, 4) == startComment) { |
| state = InComment; |
| } else { |
| state = InTag; |
| start = pos; |
| while (pos < len && text.at(pos) != space |
| && text.at(pos) != endTag |
| && text.at(pos) != tab |
| && text.mid(pos, 2) != endElement) |
| ++pos; |
| if (text.mid(pos, 2) == endElement) |
| ++pos; |
| setFormat(start, pos - start, |
| m_formats[Tag]); |
| break; |
| } |
| break; |
| } else if (ch == amp) { |
| start = pos; |
| while (pos < len && text.at(pos++) != semicolon) |
| ; |
| setFormat(start, pos - start, |
| m_formats[Entity]); |
| } else { |
| // No tag, comment or entity started, continue... |
| ++pos; |
| } |
| } |
| break; |
| case InComment: |
| start = pos; |
| while (pos < len) { |
| if (text.mid(pos, 3) == endComment) { |
| pos += 3; |
| state = NormalState; |
| break; |
| } else { |
| ++pos; |
| } |
| } |
| setFormat(start, pos - start, m_formats[Comment]); |
| break; |
| case InTag: |
| QChar quote = QChar::Null; |
| while (pos < len) { |
| QChar ch = text.at(pos); |
| if (quote.isNull()) { |
| start = pos; |
| if (ch == apos || ch == quot) { |
| quote = ch; |
| } else if (ch == endTag) { |
| ++pos; |
| setFormat(start, pos - start, m_formats[Tag]); |
| state = NormalState; |
| break; |
| } else if (text.mid(pos, 2) == endElement) { |
| pos += 2; |
| setFormat(start, pos - start, m_formats[Tag]); |
| state = NormalState; |
| break; |
| } else if (ch != space && text.at(pos) != tab) { |
| // Tag not ending, not a quote and no whitespace, so |
| // we must be dealing with an attribute. |
| ++pos; |
| while (pos < len && text.at(pos) != space |
| && text.at(pos) != tab |
| && text.at(pos) != equals) |
| ++pos; |
| setFormat(start, pos - start, m_formats[Attribute]); |
| start = pos; |
| } |
| } else if (ch == quote) { |
| quote = QChar::Null; |
| |
| // Anything quoted is a value |
| setFormat(start, pos - start, m_formats[Value]); |
| } |
| ++pos; |
| } |
| break; |
| } |
| } |
| setCurrentBlockState(state); |
| } |
| |
| } // namespace qdesigner_internal |
| |
| QT_END_NAMESPACE |