Handle objects, arrays and strings

include/lexer/lexer_states.h

@@ -1,6 +1,13 @@
 #ifndef LEXER_STATES_H
 #define LEXER_STATES_H
 
+#include <stdbool.h>
+
+#define VALID_JSON true
+#define INVALID_JSON false
+
 typedef struct lexer lexer_t;
 
+bool validate_json(char *json);
+
 #endif // !LEXER_STATES_H