added basic interface of the shellmatta option parser + started adding a test module

api/shellmatta.h

@@ -51,6 +51,34 @@ typedef enum
     SHELLMATTA_MODE_OVERWRITE   ,       /**< overwrite mode */
 } shellmatta_mode_t;
 
+/**
+ * @brief definition of shellmatta optionparser agument type
+ */
+typedef enum
+{
+    SHELLMATTA_OPT_ARG_NONE     = 0u,   /**< no argument expected   */
+    SHELLMATTA_OPT_ARG_REQUIRED,        /**< argument is required   */
+    SHELLMATTA_OPT_ARG_OPTIONAL,        /**< argument is optional   */
+} shellmatta_opt_argtype_t;
+
+/**
+ * @brief definition of shellmatta optionparser agument type
+ */
+typedef struct
+{
+    const char                  *paramLong; /**< long parameter string      */
+    const char                  paramShort; /**< short parameter char       */
+    shellmatta_opt_argtype_t    argtype;    /**< argument type expected     */
+} shellmatta_opt_long_t;
+
+/**
+ * @brief definition of shellmatta optionparser structure
+ */
+typedef struct
+{
+    uint32_t    offset;     /**< current offset of the option parser    */
+} shellmatta_opt_t;
+
 /**
  * @brief shellmatta command function definition
  * @param[in]   handle      pointer to the instance which is calling the cmd
@@ -113,6 +141,7 @@ typedef struct
     shellmatta_cmd_t    *cmdList;           /**< pointer to the first command           */
     bool                cmdListIsConst;     /**< true if the #cmdList was passed during
                                                  initialization                         */
+    shellmatta_opt_t    optionParser;       /**< option parser sructure                 */
 } shellmatta_instance_t;
 
 
@@ -146,6 +175,19 @@ shellmatta_retCode_t shellmatta_processData(shellmatta_handle_t handle,
 shellmatta_retCode_t shellmatta_write(      shellmatta_handle_t handle,
                                             char                *data,
                                             uint32_t            length);
+
+shellmatta_retCode_t shellmatta_opt(        shellmatta_handle_t handle,
+                                            char                *optionString,
+                                            char                *option,
+                                            char                **argument,
+                                            uint32_t            *argLen);
+
+shellmatta_retCode_t shellmatta_opt_long(   shellmatta_handle_t     handle,
+                                            shellmatta_opt_long_t   *longOptions,
+                                            char                    *option,
+                                            char                    **argument,
+                                            uint32_t                *argLen);
+
 #ifndef SHELLMATTA_STRIP_PRINTF
 shellmatta_retCode_t shellmatta_printf(     shellmatta_handle_t handle,
                                             const char          *fmt,