99 lines
4.4 KiB
C++
99 lines
4.4 KiB
C++
/* ----------------------------------------------------------------------
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LAMMPS - Large-scale Atomic/Molecular Massively Parallel Simulator
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https://www.lammps.org/, Sandia National Laboratories
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LAMMPS development team: developers@lammps.org
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Copyright (2003) Sandia Corporation. Under the terms of Contract
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DE-AC04-94AL85000 with Sandia Corporation, the U.S. Government retains
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certain rights in this software. This software is distributed under
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the GNU General Public License.
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See the README file in the top-level LAMMPS directory.
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------------------------------------------------------------------------- */
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#include "highlighter.h"
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Highlighter::Highlighter(QTextDocument *parent) : QSyntaxHighlighter(parent)
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{
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HighlightingRule rule;
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keywordFormat.setForeground(Qt::darkBlue);
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keywordFormat.setFontWeight(QFont::Bold);
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const QString keywordPatterns[] = {
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QStringLiteral("\\bchar\\b"), QStringLiteral("\\bclass\\b"),
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QStringLiteral("\\bconst\\b"), QStringLiteral("\\bdouble\\b"),
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QStringLiteral("\\benum\\b"), QStringLiteral("\\bexplicit\\b"),
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QStringLiteral("\\bfriend\\b"), QStringLiteral("\\binline\\b"),
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QStringLiteral("\\bint\\b"), QStringLiteral("\\blong\\b"),
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QStringLiteral("\\bnamespace\\b"), QStringLiteral("\\boperator\\b"),
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QStringLiteral("\\bprivate\\b"), QStringLiteral("\\bprotected\\b"),
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QStringLiteral("\\bpublic\\b"), QStringLiteral("\\bshort\\b"),
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QStringLiteral("\\bsignals\\b"), QStringLiteral("\\bsigned\\b"),
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QStringLiteral("\\bslots\\b"), QStringLiteral("\\bstatic\\b"),
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QStringLiteral("\\bstruct\\b"), QStringLiteral("\\btemplate\\b"),
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QStringLiteral("\\btypedef\\b"), QStringLiteral("\\btypename\\b"),
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QStringLiteral("\\bunion\\b"), QStringLiteral("\\bunsigned\\b"),
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QStringLiteral("\\bvirtual\\b"), QStringLiteral("\\bvoid\\b"),
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QStringLiteral("\\bvolatile\\b"), QStringLiteral("\\bbool\\b")};
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for (const QString &pattern : keywordPatterns) {
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rule.pattern = QRegularExpression(pattern);
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rule.format = keywordFormat;
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highlightingRules.append(rule);
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}
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classFormat.setFontWeight(QFont::Bold);
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classFormat.setForeground(Qt::darkMagenta);
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rule.pattern = QRegularExpression(QStringLiteral("\\bQ[A-Za-z]+\\b"));
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rule.format = classFormat;
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highlightingRules.append(rule);
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quotationFormat.setForeground(Qt::darkGreen);
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rule.pattern = QRegularExpression(QStringLiteral("\".*\""));
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rule.format = quotationFormat;
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highlightingRules.append(rule);
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functionFormat.setFontItalic(true);
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functionFormat.setForeground(Qt::blue);
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rule.pattern = QRegularExpression(QStringLiteral("\\b[A-Za-z0-9_]+(?=\\()"));
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rule.format = functionFormat;
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highlightingRules.append(rule);
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singleLineCommentFormat.setForeground(Qt::red);
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rule.pattern = QRegularExpression(QStringLiteral("//[^\n]*"));
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rule.format = singleLineCommentFormat;
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highlightingRules.append(rule);
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multiLineCommentFormat.setForeground(Qt::red);
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commentStartExpression = QRegularExpression(QStringLiteral("/\\*"));
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commentEndExpression = QRegularExpression(QStringLiteral("\\*/"));
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}
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void Highlighter::highlightBlock(const QString &text)
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{
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for (const HighlightingRule &rule : qAsConst(highlightingRules)) {
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QRegularExpressionMatchIterator matchIterator = rule.pattern.globalMatch(text);
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while (matchIterator.hasNext()) {
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QRegularExpressionMatch match = matchIterator.next();
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setFormat(match.capturedStart(), match.capturedLength(), rule.format);
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}
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}
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setCurrentBlockState(0);
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int startIndex = 0;
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if (previousBlockState() != 1) startIndex = text.indexOf(commentStartExpression);
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while (startIndex >= 0) {
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QRegularExpressionMatch match = commentEndExpression.match(text, startIndex);
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int endIndex = match.capturedStart();
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int commentLength = 0;
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if (endIndex == -1) {
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setCurrentBlockState(1);
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commentLength = text.length() - startIndex;
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} else {
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commentLength = endIndex - startIndex + match.capturedLength();
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}
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setFormat(startIndex, commentLength, multiLineCommentFormat);
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startIndex = text.indexOf(commentStartExpression, startIndex + commentLength);
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}
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}
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// Local Variables:
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// c-basic-offset: 4
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// End:
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