casex_statement : CASEX LPAREN case_comp RPAREN casecontent_statements ENDCASE

def p_casex_statement(self, p):
        'casex_statement : CASEX LPAREN case_comp RPAREN casecontent_statements ENDCASE'
        p[0] = CasexStatement(p[3], p[5], lineno=p.lineno(1))
        p.set_lineno(0, p.lineno(1))