You CAN teach an old dog new tricks. Given the endless combinations of using the statements, it hadn't occurred to me that PRINT ON automatically prints to the printer as if PRINTER ON were processed. I used PRINT ON twenty years ago for some simultaneous reports that I was creating as new code but hadn't incorporated it into today's use as a lot of reports are pre-existing and run multiple times.
You're one of the few people that I've run into that use PRINT ON. Also, I have NEVER run into it in all of my years and systems that I've worked on. Like helping the newbies with MV, I can now add this little tidbit to my mental library of techniques should the need arise. Thanks Mark Johnson ----- Original Message ----- From: "Anthony W. Youngman" <[EMAIL PROTECTED]> To: <u2-users@listserver.u2ug.org> Sent: Thursday, March 15, 2007 4:37 AM Subject: Re: [U2] Reports In Universe BASIC > In message <[EMAIL PROTECTED]>, MAJ > Programming <[EMAIL PROTECTED]> writes > >No offense but what does PRINT ON have to do with PRINTER ON/OFF. They're > >sorta unrelated. > > But using PRINT ON means you don't need to use PRINTER ON/OFF > > Most of my programming always sent reports to print unit 1. That way, > whether I used CRT or PRINT was totally irrelevant - they both ALWAYS > went to the terminal. > > > >I have an issue with the code having PRINTER ON ; PRINT SOMETHING then > >PRINTER OFF in the body of what is assumed to be a loop. It was replying to > >someone's report request. > > As I say, if the user had used PRINT ON 1 SOMETHING, then the PRINTER ON > ; PRINTER OFF lines could just have been deleted *completely* as > redundant. > > (Only thing is, it was then wise to finish the program with PRINTER > CLOSE ON 1 otherwise your users would be saying "where's my print job?" > Still stuck in the queue as "pending and open" :-) > > Oh - and another big advantage for PRINT ON 1 - we had a very obscure > bug where output to terminal would occasionally just die, and it was in > the system for several years! I eventually discovered the cause - a > report program did PRINTER ON at the start, PRINTER OFF at the end, and > there was some obscure circumstance where it could exit without falling > off the bottom of the code and executing the PRINTER OFF. We knew that > was what was happening, because when the printout did appear it had all > this crud at the end, but we just couldn't work out HOW it was > happening. Especially as the users were dire at telling us what they'd > done to cause it :-) Actually, I might have discovered and fixed the bug > at the same time as I converted it to PRINT ON 1 to fix the problem ... > > Cheers, > Wol > > > >----- Original Message ----- > >From: "Anthony W. Youngman" <[EMAIL PROTECTED]> > >To: <u2-users@listserver.u2ug.org> > >Sent: Tuesday, March 13, 2007 4:45 AM > >Subject: Re: [U2] Reports In Universe BASIC > > > > > >> In message <[EMAIL PROTECTED]>, MAJ > >> Programming <[EMAIL PROTECTED]> writes > >> >Here we go with the wide variety of 'examples'. > >> > > >> >What is the sanity of PRINTER ON, then PRINT then PRINTER OFF? > >> > > >> >Should we not be teaching PRINTER ON once and PRINTER OFF at the end? > >> > > >> >I've only seen the redundant PRINTER ON, then PRINT then PRINTER OFF when > >> >the programmer didn't know of CRT and was providing some PRINT @(x,y):ID > >> >running dialog. > >> > >> Or what I sometimes did (especially useful when creating two or three > >> reports from a single pass through a file...) > >> > >> PRINT ON 1 ... > >> > >> That was quite often used to generate a full report, summary, and stats, > >> all in one pass. > >> > >> Cheers, > >> Wol > >> -- > >> Anthony W. Youngman <[EMAIL PROTECTED]> > >> 'Yings, yow graley yin! Suz ae rikt dheu,' said the blue man, taking the > >> thimble. 'What *is* he?' said Magrat. 'They're gnomes,' said Nanny. The > >man > >> lowered the thimble. 'Pictsies!' Carpe Jugulum, Terry Pratchett 1998 > >> Visit the MaVerick web-site - <http://www.maverick-dbms.org> Open Source > >Pick > >> ------- > >> u2-users mailing list > >> u2-users@listserver.u2ug.org > >> To unsubscribe please visit http://listserver.u2ug.org/ > >------- > >u2-users mailing list > >u2-users@listserver.u2ug.org > >To unsubscribe please visit http://listserver.u2ug.org/ > > -- > Anthony W. Youngman <[EMAIL PROTECTED]> > 'Yings, yow graley yin! Suz ae rikt dheu,' said the blue man, taking the > thimble. 'What *is* he?' said Magrat. 'They're gnomes,' said Nanny. The man > lowered the thimble. 'Pictsies!' Carpe Jugulum, Terry Pratchett 1998 > Visit the MaVerick web-site - <http://www.maverick-dbms.org> Open Source Pick > ------- > u2-users mailing list > u2-users@listserver.u2ug.org > To unsubscribe please visit http://listserver.u2ug.org/ ------- u2-users mailing list u2-users@listserver.u2ug.org To unsubscribe please visit http://listserver.u2ug.org/
