Refactoring on the operators parsers (2/2)

This is the first step towards remove the memory leaks in the parser

src/operators/rx.h

@@ -22,7 +22,7 @@
 #include "src/operators/operator.h"
 #include "src/utils/regex.h"
 
-#ifdef __cplusplus
+
 namespace modsecurity {
 using Utils::SMatch;
 using Utils::regex_search;
@@ -42,6 +42,10 @@ class Rx : public Operator {
         : Operator(name, param) {
         m_re = new Regex(param);
     }
+    explicit Rx(std::string param)
+        : Operator("Rx", param) {
+        m_re = new Regex(param);
+    }
 
     ~Rx() {
         delete m_re;
@@ -61,7 +65,5 @@ class Rx : public Operator {
 }  // namespace operators
 }  // namespace modsecurity
 
-#endif
-
 
 #endif  // SRC_OPERATORS_RX_H_