Move format code to options and cleanup

lib/src/clixon_options.c

@@ -125,6 +125,42 @@ static const map_str2int yang_regexp_map[] = {
     {NULL,                 -1}
 };
 
+/*! Translate between int and string of tree formats
+ *
+ * @see enum format_enum
+ */
+static const map_str2int _FORMATS[] = {
+    {"xml",     FORMAT_XML},
+    {"text",    FORMAT_TEXT},
+    {"json",    FORMAT_JSON},
+    {"cli",     FORMAT_CLI},
+    {"netconf", FORMAT_NETCONF},
+    {"default", FORMAT_DEFAULT},
+    {NULL,      -1}
+};
+
+/*! Translate from numeric format to string representation
+ *
+ * @param[in]  showas   Format value (see enum format_enum)
+ * @retval     str      String value
+ */
+char *
+format_int2str(enum format_enum showas)
+{
+    return (char*)clicon_int2str(_FORMATS, showas);
+}
+
+/*! Translate from string to numeric format representation
+ *
+ * @param[in]  str       String value
+ * @retval     enum      Format value (see enum format_enum)
+ */
+enum format_enum
+format_str2int(char *str)
+{
+    return clicon_str2int(_FORMATS, str);
+}
+
 /*! Debug dump config options
  *
  * @param[in] h        Clixon handle