rl_line_buffer    250 ext/readline/readline.c 		add_assoc_string(return_value,"line_buffer",SAFE_STRING(rl_line_buffer),1);
rl_line_buffer    268 ext/readline/readline.c 			oldstr = rl_line_buffer;
rl_line_buffer    272 ext/readline/readline.c 				rl_line_buffer = strdup(Z_STRVAL_PP(value));