NOISSUE Flatten gui and logic libraries into MultiMC

launcher/pathmatcher/RegexpMatcher.h

@@ -0,0 +1,42 @@
+#include "IPathMatcher.h"
+#include <QRegularExpression>
+
+class RegexpMatcher : public IPathMatcher
+{
+public:
+    virtual ~RegexpMatcher() {};
+    RegexpMatcher(const QString &regexp)
+    {
+        m_regexp.setPattern(regexp);
+        m_onlyFilenamePart = !regexp.contains('/');
+    }
+
+    RegexpMatcher &caseSensitive(bool cs = true)
+    {
+        if(cs)
+        {
+            m_regexp.setPatternOptions(QRegularExpression::CaseInsensitiveOption);
+        }
+        else
+        {
+            m_regexp.setPatternOptions(QRegularExpression::NoPatternOption);
+        }
+        return *this;
+    }
+
+    virtual bool matches(const QString &string) const override
+    {
+        if(m_onlyFilenamePart)
+        {
+            auto slash = string.lastIndexOf('/');
+            if(slash != -1)
+            {
+                auto part = string.mid(slash + 1);
+                return m_regexp.match(part).hasMatch();
+            }
+        }
+        return m_regexp.match(string).hasMatch();
+    }
+    QRegularExpression m_regexp;
+    bool m_onlyFilenamePart = false;
+};