NOISSUE Flatten gui and logic libraries into MultiMC

launcher/Filter.h

@@ -0,0 +1,42 @@
+#pragma once
+
+#include <QString>
+#include <QRegularExpression>
+
+class Filter
+{
+public:
+    virtual ~Filter();
+    virtual bool accepts(const QString & value) = 0;
+};
+
+class ContainsFilter: public Filter
+{
+public:
+    ContainsFilter(const QString &pattern);
+    virtual ~ContainsFilter();
+    bool accepts(const QString & value) override;
+private:
+    QString pattern;
+};
+
+class ExactFilter: public Filter
+{
+public:
+    ExactFilter(const QString &pattern);
+    virtual ~ExactFilter();
+    bool accepts(const QString & value) override;
+private:
+    QString pattern;
+};
+
+class RegexpFilter: public Filter
+{
+public:
+    RegexpFilter(const QString &regexp, bool invert);
+    virtual ~RegexpFilter();
+    bool accepts(const QString & value) override;
+private:
+    QRegularExpression pattern;
+    bool invert = false;
+};