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highlighter.cpp
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highlighter.cpp
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/****************************************************************************
** SASM - simple IDE for assembler development
** Copyright (C) 2013 Dmitriy Manushin
** Contact: site: http://dman95.github.io/SASM/
** e-mail: [email protected]
**
** This file is part of SASM.
**
** SASM is free software: you can redistribute it and/or modify
** it under the terms of the GNU General Public License as published by
** the Free Software Foundation, either version 3 of the License, or
** (at your option) any later version.
**
** SASM is distributed in the hope that it will be useful,
** but WITHOUT ANY WARRANTY; without even the implied warranty of
** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
** GNU General Public License for more details.
**
** You should have received a copy of the GNU General Public License
** along with SASM. If not, see <http://www.gnu.org/licenses/>.
**
** Этот файл — часть SASM.
**
** SASM - свободная программа: вы можете перераспространять ее и/или
** изменять ее на условиях Стандартной общественной лицензии GNU в том виде,
** в каком она была опубликована Фондом свободного программного обеспечения;
** либо версии 3 лицензии, либо (по вашему выбору) любой более поздней
** версии.
**
** SASM распространяется в надежде, что она будет полезной,
** но БЕЗО ВСЯКИХ ГАРАНТИЙ; даже без неявной гарантии ТОВАРНОГО ВИДА
** или ПРИГОДНОСТИ ДЛЯ ОПРЕДЕЛЕННЫХ ЦЕЛЕЙ. Подробнее см. в Стандартной
** общественной лицензии GNU.
**
** Вы должны были получить копию Стандартной общественной лицензии GNU
** вместе с этой программой. Если это не так, см.
** <http://www.gnu.org/licenses/>.)
**
****************************************************************************/
#include "highlighter.h"
/**
* @file highlighter.cpp
* The code highlighting features are defined here.
*/
Highlighter::Highlighter(Assembler *assembler, QTextDocument *parent)
: QSyntaxHighlighter(parent)
{
QTextCharFormat keywordFormat;
QTextCharFormat quotationFormat;
QTextCharFormat registerFormat;
QTextCharFormat labelFormat;
QTextCharFormat labelWithDotFormat;
QTextCharFormat memoryFormat;
QTextCharFormat systemFormat;
QTextCharFormat numberFormat;
QTextCharFormat iomacrosFormat;
QList<QColor> defaultColors;
QList<QString> names;
QList<QTextCharFormat *> formats;
//setting up text formats
names << "keywords" << "registers" << "numbers" << "memory" <<
"labels" << "comments" << "system" << "iomacro" <<
"quotation";
defaultColors << QColor(Qt::blue) << QColor(153, 0, 204) << //according to colorNames
QColor(255, 122, 0) << QColor(0, 128, 255) <<
QColor(128, 0, 0) << QColor(Qt::darkGreen) <<
QColor(Qt::darkCyan) << QColor(Qt::blue) <<
QColor(128, 128, 128);
formats << &keywordFormat << ®isterFormat << &numberFormat << &memoryFormat <<
&labelFormat << &commentFormat << &systemFormat << &iomacrosFormat <<
"ationFormat;
QSettings settings("SASM Project", "SASM");
for (int i = 0; i < formats.size(); i++) {
formats[i]->setForeground(settings.value(names[i] + "color", defaultColors[i]).value<QColor>());
formats[i]->setBackground(settings.value(names[i] + "colorbg", QColor(255, 255, 255)).value<QColor>());
if (settings.value(names[i] + "bold", (i == 0) ? true : false).toBool())
formats[i]->setFontWeight(QFont::Bold);
formats[i]->setFontItalic(settings.value(names[i] + "italic", false).toBool());
}
labelWithDotFormat.setForeground(settings.value("fontcolor", QColor(30, 30, 30)).value<QColor>());
formats << &labelWithDotFormat;
assembler->fillHighligherRules(highlightingRules, formats, multiLineComments, commentStartExpression, commentEndExpression);
}
void Highlighter::highlightBlock(const QString &text)
{
foreach (const HighlightingRule &rule, highlightingRules) {
QRegExp expression(rule.pattern);
int index = expression.indexIn(text);
while (index >= 0) {
int length = expression.matchedLength();
if (rule.isComment) {
if (!isCommentInQuote(text, index)) {
setFormat(index, length, rule.format);
index = expression.indexIn(text, index + length);
} else {
index = expression.indexIn(text, index + 1);
}
} else {
setFormat(index, length, rule.format);
index = expression.indexIn(text, index + length);
}
}
}
if (multiLineComments) {
setCurrentBlockState(0);
int startIndex = 0;
if (previousBlockState() != 1) {
startIndex = commentStartExpression.indexIn(text);
if (startIndex != -1 && isCommentInQuote(text, startIndex)) {
startIndex = -1;
}
}
while (startIndex >= 0) {
int endIndex = commentEndExpression.indexIn(text, startIndex);
int commentLength;
if (endIndex == -1) {
setCurrentBlockState(1);
commentLength = text.length() - startIndex;
} else {
commentLength = endIndex - startIndex
+ commentEndExpression.matchedLength();
}
setFormat(startIndex, commentLength, commentFormat);
startIndex = commentStartExpression.indexIn(text, startIndex + commentLength);
}
}
}
bool Highlighter::isCommentInQuote(const QString &text, int index)
{
bool inQuote = false;
char quote = 0;
for (int i = 0; i < index; ++i) {
char c = text[i].toLatin1();
switch (c) {
case '"':
case '\'':
case '`':
if (!inQuote) {
inQuote = true;
quote = c;
} else if (quote == c) {
inQuote = false;
}
}
}
return inQuote;
}
Highlighter::~Highlighter()
{
highlightingRules.clear();
}