• WhatMeWorry (11/11) Jul 14 2014 Sorry if this is an incredibly naive question.
• H. S. Teoh via Digitalmars-d-learn (8/20) Jul 14 2014 [...]
• ponce (2/7) Jul 15 2014 In the Windows shell, the "pause" key will halt a program and
• rumbu (4/15) Jul 15 2014 getch() reads any key and continues;
• Meta (2/5) Jul 15 2014 Don't forget that getch() is also Windows-specific.
• Adam D. Ruppe (19/21) Jul 15 2014 Yeah. It is more complex than you'd think but my terminal library

"WhatMeWorry" <kc_heaser yahoo.com> writes:

Sorry if this is an incredibly naive question.

I prefer to pragmatically pause my programs periodically so that 
I can peruse output statements. Ideally, I'd like to continue by 
just hitting any old key. My feeble attempt below requires I 
enter at least one character and then the enter key.

char ignore;
writeln("Enter to continue");
readf(" %s", &ignore);

Is there a way to continue with any old key press? or just the 
enter key?

Thanks in advance.

"H. S. Teoh via Digitalmars-d-learn" <digitalmars-d-learn puremagic.com> writes:

On Tue, Jul 15, 2014 at 02:49:55AM +0000, WhatMeWorry via Digitalmars-d-learn
wrote:
 Sorry if this is an incredibly naive question.
 
 I prefer to pragmatically pause my programs periodically so that I can
 peruse output statements. Ideally, I'd like to continue by just hitting any
 old key. My feeble attempt below requires I enter at least one character and
 then the enter key.
 
 char ignore;
 writeln("Enter to continue");
 readf(" %s", &ignore);
 
 Is there a way to continue with any old key press? or just the enter key?

[...]

I don't know about Windows, but on Linux, you can just press ctrl-s and
ctrl-q to pause/resume the console. (This is a Linux terminal function,
not specific to D.)


T

-- 
Ruby is essentially Perl minus Wall.

"ponce" <contact gam3sfrommars.fr> writes:

 I don't know about Windows, but on Linux, you can just press 
 ctrl-s and
 ctrl-q to pause/resume the console. (This is a Linux terminal 
 function,
 not specific to D.)

In the Windows shell, the "pause" key will halt a program and 
"return" will resume it.

"rumbu" <rumbu rumbu.ro> writes:

On Tuesday, 15 July 2014 at 02:49:56 UTC, WhatMeWorry wrote:
 Sorry if this is an incredibly naive question.

 I prefer to pragmatically pause my programs periodically so 
 that I can peruse output statements. Ideally, I'd like to 
 continue by just hitting any old key. My feeble attempt below 
 requires I enter at least one character and then the enter key.

 char ignore;
 writeln("Enter to continue");
 readf(" %s", &ignore);

 Is there a way to continue with any old key press? or just the 
 enter key?

 Thanks in advance.


getch() reads any key and continues;

On Windows you can pipe you executable with the "more" command to 
pause after each page: your.exe | more

"Meta" <jared771 gmail.com> writes:

On Tuesday, 15 July 2014 at 10:22:52 UTC, rumbu wrote:
 getch() reads any key and continues;

 On Windows you can pipe you executable with the "more" command 
 to pause after each page: your.exe | more

Don't forget that getch() is also Windows-specific.

"Adam D. Ruppe" <destructionator gmail.com> writes:

On Tuesday, 15 July 2014 at 02:49:56 UTC, WhatMeWorry wrote:
 Is there a way to continue with any old key press? or just the 
 enter key?

Yeah. It is more complex than you'd think but my terminal library 
can do it:

https://github.com/adamdruppe/arsd/blob/master/terminal.d

Example usage:

import terminal;

void main() {
   auto terminal = Terminal(ConsoleOutputType.linear);

   // gives real time input capability
   auto input = RealTimeConsoleInput(&terminal, 
ConsoleInputFlags.raw);

   // write to them
   terminal.writeln("Press any key to exit");

   // get a single key
   auto ch = input.getch();
   terminal.writeln("Bye!");
}


PS this is also described in my book 
http://www.packtpub.com/discover-advantages-of-programming-in-d-cookbook/book