NOISSUE Flatten gui and logic libraries into MultiMC

launcher/Filter.cpp

@@ -0,0 +1,31 @@
+#include "Filter.h"
+
+Filter::~Filter(){}
+
+ContainsFilter::ContainsFilter(const QString& pattern) : pattern(pattern){}
+ContainsFilter::~ContainsFilter(){}
+bool ContainsFilter::accepts(const QString& value)
+{
+    return value.contains(pattern);
+}
+
+ExactFilter::ExactFilter(const QString& pattern) : pattern(pattern){}
+ExactFilter::~ExactFilter(){}
+bool ExactFilter::accepts(const QString& value)
+{
+    return value == pattern;
+}
+
+RegexpFilter::RegexpFilter(const QString& regexp, bool invert)
+    :invert(invert)
+{
+    pattern.setPattern(regexp);
+    pattern.optimize();
+}
+RegexpFilter::~RegexpFilter(){}
+bool RegexpFilter::accepts(const QString& value)
+{
+    auto match = pattern.match(value);
+    bool matched = match.hasMatch();
+    return invert ? (!matched) : (matched);
+}