gotos [Really Yet Another write this without gotos]

[Dragos Ruiu]

In article <2200 at louie.udel.EDU>, new at udel.EDU (Darren New) writes:
.> 
.> How about: (pseudocode)
.>    for (i = 0; i < max_in_table && key != name[i]; ++i) 
.>       if (keypressed()) goto handle_key;
.>    seek(helpfile, offset[i]);
.>    if (keypressed()) goto handle_key;
.>    linecount = 0;
.>    do {
.>       read_line_from_file();
.>       ++linecount;
.>       if (keypressed()) goto handle_key;
.>       if (read_line[0] == special_flag_char) goto handle_key;
.>       insert_spaces_and_color_codes();
.>       if (keypressed()) goto handle_key;
.>       display_text_line();
.>       if (keypressed()) goto handle_key;
.>       } while (linecount < 24);
.>    handle_key:
.>    c = wait_for_key_then_read_it();
.>    switch (c) {
.>       case 'A': ...
.>        ...
.>       }
.> 
.> I contend that if the reading and formatting and displaying are sufficiently
.> slow, such behaviour can be desirable (i.e., on microcomputers).
.> I would like to see a goto-less version of this that is easier to understand.
.>                              - Darren New
.>                                Graduate Student
.>                                University of Delaware.
.> 
    done_reading = FALSE;
    linecount = 0;
    do_what_ever_seeks();
    while(!done_reading)
    {
	if(!keypressed())
	{
	    read_line();
	    linecount++;
	}
	if(!keypressed())
	    do_what_ever_stuff();
	if(!keypressed())
	    print_that_sucker();
	if(keypressed() || linecount >= 24)
	    done_reading = TRUE;
    }
    c = wait_for_key_then_read_it();
    switch (c)
    {
       case 'A': ...
        ...
    }


    Really, this is getting boring. Would all the goto fans please go get
    themselves a BASIC compiler to write software and let us talk about
    something else. :-)

-- 
Dragos Ruiu   ruiu at dragos.UUCP
        ...alberta!dragos!ruiu   "cat ansi.c | grep -v noalias >proper.c"