Adds variable TX and action "capture".

src/operators/rx.cc

@@ -16,6 +16,7 @@
 #include "operators/rx.h"
 
 #include <string>
+#include <list>
 
 #include "operators/operator.h"
 
@@ -27,6 +28,7 @@ bool Rx::evaluate(Assay *assay, const std::string& input) {
     SMatch match;
 
     if (regex_search(input, &match, m_re) && match.size() >= 1) {
+        this->matched.push_back(match.match);
         return true;
     }