In C coding language

Lab 12b Write a PREPROCESSOR that will make the following translations: BEGIN =='{' END == '}' MY_PROG == main STRUCTURE == struct UNION == union GETMEM == malloc OPEN == fopen CLOSE == fclose THEN == '{' #no '{ if followed by '{' ELSE "} else '{ #noy if preceded by }', no '{' if followed by one ENDIF == *}' #no 'y' if preceded by one ==