1 files changed, 69 insertions, 0 deletions
diff --git a/src/namereplace.cpp b/src/namereplace.cpp
new file mode 100644
index 0000000..36d834d
--- /dev/null
+++ b/src/namereplace.cpp
@@ -0,0 +1,69 @@
+#include "namereplace.h"
+#include <QString>
+#include <QRegularExpression>
+#include <QFile>
+#include <QTextStream>
+#include <QDebug>
+
+#define SOURCE_FILE "/opt/openslx/lightdm/login-regexp"
+
+static QList< QPair< QRegularExpression, QString > > list;
+
+static inline int find(QChar c, int start, const QString& line)
+{
+	do {
+		int next = line.indexOf(c, start);
+		if (next == -1)
+			return -1;
+		if (line.at(next - 1) != '\\')
+			return next;
+		start = next + 1;
+	} while (true);
+}
+
+void NameReplace::loadSubs()
+{
+	int idx = 0;
+	QFile inputFile(SOURCE_FILE);
+	if (!inputFile.open(QIODevice::ReadOnly))
+		return;
+	QTextStream in(&inputFile);
+	in.setCodec("UTF-8");
+	while (!in.atEnd()) {
+		QString line = in.readLine();
+		idx++;
+		if (line.isEmpty())
+			continue;
+		QChar delim = line.at(0);
+		int first = find(delim, 1, line);
+		if (first == -1)
+			continue;
+		int second = find(delim, first + 1, line);
+		if (second == -1)
+			continue;
+		QString regex = line.mid(1, first - 1).replace(QString("\\") + delim, QString(delim));
+		QString replace = line.mid(first + 1, second - first - 1).replace(QString("\\") + delim, QString(delim));
+		QString flags = line.mid(second + 1);
+		// ...
+		QRegularExpression::PatternOptions opts = 0;
+		if (flags.contains("i")) {
+			opts |= QRegularExpression::CaseInsensitiveOption;
+		}
+		QRegularExpression re(regex, opts);
+		if (!re.isValid()) {
+			qWarning() << "Invalid regex:" << regex << "on line" << idx;
+			continue;
+		}
+		list.append(QPair<QRegularExpression, QString>(re, replace));
+	}
+	inputFile.close();
+}
+
+void NameReplace::replace(QString& input)
+{
+	if (list.isEmpty())
+		return;
+	for (auto &brumm : list) {
+		input = input.replace(brumm.first, brumm.second);
+	}
+}