4 files changed, 126 insertions, 0 deletions
diff --git a/src/parameters/CMakeLists.txt b/src/parameters/CMakeLists.txt
new file mode 100644
index 0000000..94e6337
--- /dev/null
+++ b/src/parameters/CMakeLists.txt
@@ -0,0 +1,6 @@
+set(
+   SRC_FILES ${SRC_FILES}
+   ${CMAKE_CURRENT_SOURCE_DIR}/parameters.c
+)
+set(SRC_FILES ${SRC_FILES} PARENT_SCOPE)
+
diff --git a/src/parameters/parameters.c b/src/parameters/parameters.c
new file mode 100644
index 0000000..82ac9d1
--- /dev/null
+++ b/src/parameters/parameters.c
@@ -0,0 +1,84 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <errno.h>
+
+#include "../core/index.h"
+
+#include "parameters.h"
+
+static int parse_markov_order
+(
+   struct ZoO_parameters param [const restrict static 1],
+   const char argv [const restrict]
+)
+{
+	long long int input;
+	const int old_errno = errno;
+
+	errno = 0;
+
+   input = strtoll(argv, (char **) NULL, 10);
+
+   if
+   (
+      (errno != 0)
+		|| (input > (long long int) ZoO_INDEX_MAX)
+		|| (input < 1)
+   )
+   {
+		fprintf
+      (
+			stderr,
+         "[F] Invalid or value for parameter 'MARKOV_ORDER', accepted"
+			"range is "
+         "[1, %lli] (integer).",
+         (long long int) ZoO_INDEX_MAX
+      );
+
+      errno = old_errno;
+
+      return -1;
+   }
+
+	param->markov_order = (ZoO_index) input;
+
+   errno = old_errno;
+
+   return 0;
+}
+
+enum ZoO_invocation_objective ZoO_parameters_initialize
+(
+   struct ZoO_parameters param [const restrict static 1],
+   int const argc,
+   const char * argv [const static argc]
+)
+{
+   param->session = (const char *) NULL;
+   param->markov_order = 1;
+   param->storage = (const char *) NULL;
+
+   switch (argc)
+   {
+      case 4:
+         param->session = argv[1];
+         param->storage = argv[3];
+
+         if (parse_markov_order(param, argv[2]) < 0)
+         {
+            return ZoO_PRINTS_HELP;
+         }
+         else
+         {
+            return ZoO_RUNS;
+         }
+
+      case 3:
+         param->session = argv[1];
+
+			return ZoO_CLEANS_UP;
+
+      default:
+         return ZoO_PRINTS_HELP;
+   }
+}
diff --git a/src/parameters/parameters.h b/src/parameters/parameters.h
new file mode 100644
index 0000000..7927ef7
--- /dev/null
+++ b/src/parameters/parameters.h
@@ -0,0 +1,18 @@
+#ifndef _ZoO_CLI_PARAMETERS_H_
+#define _ZoO_CLI_PARAMETERS_H_
+
+#include "parameters_types.h"
+
+char * ZoO_parameters_get_session_name
+(
+   const struct ZoO_parameters param [const restrict static 1]
+);
+
+enum ZoO_invocation_objective ZoO_parameters_initialize
+(
+   struct ZoO_parameters param [const restrict static 1],
+   int const argc,
+   const char * argv [const static argc]
+);
+
+#endif
diff --git a/src/parameters/parameters_types.h b/src/parameters/parameters_types.h
new file mode 100644
index 0000000..f9ca88b
--- /dev/null
+++ b/src/parameters/parameters_types.h
@@ -0,0 +1,18 @@
+#ifndef _ZoO_CLI_PARAMETERS_TYPES_H_
+#define _ZoO_CLI_PARAMETERS_TYPES_H_
+
+enum ZoO_invocation_objective
+{
+   ZoO_PRINTS_HELP,
+   ZoO_CLEANS_UP,
+   ZoO_RUNS
+};
+
+struct ZoO_parameters
+{
+   const char * restrict session;
+   ZoO_index markov_order;
+   const char * restrict storage;
+};
+
+#endif