Adds support to & (count) and ! (exclusion) as variables variations

src/variables/variations/count.cc

@@ -0,0 +1,55 @@
+/*
+ * ModSecurity, http://www.modsecurity.org/
+ * Copyright (c) 2015 Trustwave Holdings, Inc. (http://www.trustwave.com/)
+ *
+ * You may not use this file except in compliance with
+ * the License.  You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * If any of the files related to licensing are missing or if you have any
+ * other questions related to licensing please contact Trustwave Holdings, Inc.
+ * directly using the email address security@modsecurity.org.
+ *
+ */
+
+#include "variables/variations/count.h"
+
+#include <iostream>
+#include <string>
+#include <vector>
+#include <list>
+#include <utility>
+
+#include "modsecurity/assay.h"
+#include "src/utils.h"
+
+namespace ModSecurity {
+namespace Variables {
+namespace Variations {
+
+std::list<std::pair<std::string, std::string>>
+    Count::evaluate(Assay *assay) {
+    std::list<std::pair<std::string, std::string>> reslIn;
+    std::list<std::pair<std::string, std::string>> reslOut;
+    std::pair<std::string, std::string> pair;
+    int count = 0;
+
+    reslIn = var->evaluate(assay);
+
+    for (auto &a : reslIn) {
+        count++;
+    }
+
+    std::string res = std::to_string(count);
+
+    pair = std::make_pair(std::string(var->name), std::string(res));
+    reslOut.push_back(pair);
+
+    return reslOut;
+}
+
+
+}  // namespace Variations
+}  // namespace Variables
+}  // namespace ModSecurity