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// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
* QtMips - MIPS 32-bit Architecture Subset Simulator
*
* Implemented to support following courses:
*
* B35APO - Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b35apo
*
* B4M35PAP - Advanced Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
*
* Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
* Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
*
* This program 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 2
* of the License, or (at your option) any later version.
*
* This program 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 this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
******************************************************************************/
/* Based on Qt example released under BSD license */
#include "QStringList"
#include "highlighter.h"
#include "instruction.h"
Highlighter::Highlighter(QTextDocument *parent)
: QSyntaxHighlighter(parent)
{
HighlightingRule rule;
keywordFormat.setForeground(Qt::darkBlue);
keywordFormat.setFontWeight(QFont::Bold);
const QString keywordPatterns[] = {
QStringLiteral("\\.org\\b"), QStringLiteral("\\.word\\b"),
QStringLiteral("\\.text\\b"), QStringLiteral("\\.data\\b"),
QStringLiteral("\\.globl\\b"), QStringLiteral("\\.set\\b"),
QStringLiteral("\\.equ\\b"), QStringLiteral("\\.end\\b"),
QStringLiteral("\\.ent\\b")
};
for (const QString &pattern : keywordPatterns) {
rule.pattern = QRegularExpression(pattern);
rule.format = keywordFormat;
highlightingRules.append(rule);
}
QStringList inst_list;
machine::Instruction::append_recognized_instructions(inst_list);
foreach (const QString &str, inst_list) {
rule.pattern = QRegularExpression("\\b" + str + "\\b");
rule.format = keywordFormat;
highlightingRules.append(rule);
rule.pattern = QRegularExpression("\\b" + str.toLower() + "\\b");
rule.format = keywordFormat;
highlightingRules.append(rule);
}
registerFormat.setFontWeight(QFont::Bold);
registerFormat.setForeground(Qt::darkMagenta);
QStringList reg_list;
machine::Instruction::append_recognized_registers(reg_list);
foreach (const QString &str, reg_list) {
rule.pattern = QRegularExpression("\\$" + str + "\\b");
rule.format = registerFormat;
highlightingRules.append(rule);
}
rule.pattern = QRegularExpression("\\$[0-9]+\\b");
rule.format = registerFormat;
highlightingRules.append(rule);
singleLineCommentFormat.setForeground(Qt::red);
rule.pattern = QRegularExpression(QStringLiteral(";[^\n]*"));
rule.format = singleLineCommentFormat;
highlightingRules.append(rule);
rule.pattern = QRegularExpression(QStringLiteral("#[^\n]*"));
rule.format = singleLineCommentFormat;
highlightingRules.append(rule);
rule.pattern = QRegularExpression(QStringLiteral("//[^\n]*"));
rule.format = singleLineCommentFormat;
highlightingRules.append(rule);
multiLineCommentFormat.setForeground(Qt::red);
quotationFormat.setForeground(Qt::darkGreen);
rule.pattern = QRegularExpression(QStringLiteral("\".*\""));
rule.format = quotationFormat;
highlightingRules.append(rule);
//functionFormat.setFontItalic(true);
//functionFormat.setForeground(Qt::blue);
//rule.pattern = QRegularExpression(QStringLiteral("\\b[A-Za-z0-9_]+(?=\\()"));
//rule.format = functionFormat;
//highlightingRules.append(rule);
//commentStartExpression = QRegularExpression(QStringLiteral("/\\*"));
//commentEndExpression = QRegularExpression(QStringLiteral("\\*/"));
}
void Highlighter::highlightBlock(const QString &text)
{
for (const HighlightingRule &rule : qAsConst(highlightingRules)) {
QRegularExpressionMatchIterator matchIterator = rule.pattern.globalMatch(text);
while (matchIterator.hasNext()) {
QRegularExpressionMatch match = matchIterator.next();
setFormat(match.capturedStart(), match.capturedLength(), rule.format);
}
}
setCurrentBlockState(0);
#if 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);
}
#endif
}
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