54 lines
1.9 KiB
C++
54 lines
1.9 KiB
C++
// SPDX-FileCopyrightText: 2023 kumquat-ir 66188216+kumquat-ir@users.noreply.github.com
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//
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// SPDX-License-Identifier: LGPL-3.0-only
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#include "qdcss.h"
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#include <QRegularExpression>
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#include <QRegularExpressionMatch>
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#include <QRegularExpressionMatchIterator>
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QRegularExpression ruleset_re = QRegularExpression(R"([#.]?(@?\w+?)\s*\{(.*?)\})", QRegularExpression::DotMatchesEverythingOption);
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QRegularExpression rule_re = QRegularExpression(R"((\S+?)\s*:\s*(?:\"(.*?)(?<!\\)\"|'(.*?)(?<!\\)'|(\S+?))\s*(?:;|$))");
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QDCSS::QDCSS(QString s)
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{
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// not much error handling over here...
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// the original java code used indeces returned by the matcher for them, but QRE does not expose those
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QRegularExpressionMatchIterator ruleset_i = ruleset_re.globalMatch(s);
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while (ruleset_i.hasNext()) {
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QRegularExpressionMatch ruleset = ruleset_i.next();
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QString selector = ruleset.captured(1);
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QString rules = ruleset.captured(2);
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QRegularExpressionMatchIterator rule_i = rule_re.globalMatch(rules);
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while (rule_i.hasNext()) {
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QRegularExpressionMatch rule = rule_i.next();
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QString property = rule.captured(1);
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QString value;
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if (!rule.captured(2).isNull()) {
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value = rule.captured(2);
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} else if (!rule.captured(3).isNull()) {
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value = rule.captured(3);
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} else {
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value = rule.captured(4);
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}
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QString key = selector + "." + property;
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if (!m_data.contains(key)) {
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m_data.insert(key, QStringList());
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}
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m_data.find(key)->append(value);
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}
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}
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}
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std::optional<QString>* QDCSS::get(QString key)
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{
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auto found = m_data.find(key);
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if (found == m_data.end() || found->empty()) {
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return new std::optional<QString>;
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}
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return new std::optional<QString>(found->back());
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}
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