00:00:00 --- log: started retro/17.11.04
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06:07:11 <payphone> Is there a standard way to call an external program from inside RetroForth12?
06:15:31 <Guest75729> gforth has the system function which does not work on retro forth
06:15:39 --- nick: Guest75729 -> wuehlmaus
06:16:01 <wuehlmaus> good question
06:17:33 <crc> retro does not currently have this; I can likely add it for the next release if it would be helpful
06:17:54 <wuehlmaus> it would be great
06:18:05 <payphone> That would be very helpful!
06:18:54 <crc> ok, I'll work on it :)
06:20:52 <wuehlmaus> great
06:34:59 <wuehlmaus> is it better to use e.g. github to be current with retro or latest.tar.gz ?
06:35:25 <wuehlmaus> i would like to use github
06:35:40 <crc> latest.tar.gz currently;
06:35:48 <wuehlmaus> but it seems to be different from latest.tar.gz
06:35:58 <wuehlmaus> okay
06:36:50 <crc> I actually use a fossil repository for the main development and uodate the git with the main changes periodically
06:37:50 <wuehlmaus> what's the url then?
06:37:55 <wuehlmaus> installed fossil
06:38:40 <crc> http://forthworks.com:8000
06:39:26 <wuehlmaus> thanks
06:40:23 <crc> no problem
06:44:07 <wuehlmaus> and then i use ``fossil clone'' ?
06:45:25 <crc> fossil clone http://forthworks.com:8000 retro.fossil
06:45:45 <crc> mkdir retro
06:45:45 <wuehlmaus> ah, thank you!
06:46:08 <crc> cd retro && fossil open ../retro.fossil
06:46:38 <crc> I'll add cloning instructions to the pages later today
06:47:04 <wuehlmaus> great
06:57:47 <wuehlmaus> another question of a newbie: why does Retro use -1 to tell one that an expression is true?
06:58:08 <wuehlmaus> did forth do that from the beginning?
06:58:29 <wuehlmaus> it's quite different from c
07:03:20 <crc> traditionally in forth non-zero was considered true; use of -1 has benefits with the and/or/xor operations
07:07:25 <wuehlmaus> ah
07:07:30 <wuehlmaus> good to know
07:27:11 <crc> the fossil repo now has a `sys:system` word in the rre interface; not well tested yet (only a couple of quick things on my FreeBSD box)
07:48:40 <payphone> That was very quick, I'll give it a shot.
07:57:11 <payphone> So far it has worked as expected with every command I've tried.
08:10:10 <crc> good :)
11:20:50 <wuehlmaus> crc: is it e.g. 'ls sys:system ?
11:32:55 <crc> yes
11:34:46 <wuehlmaus> doesn't do anything for me right now but i might be just mistaken
11:34:59 <wuehlmaus> after all i am newbie
11:35:24 <wuehlmaus> and it does not work in the repl , only with a file and rre
11:35:37 <wuehlmaus> which i tried
11:38:53 <wuehlmaus> [this is on linux ]
11:41:59 <wuehlmaus> i am not used to rre yet
11:45:14 <crc> in the bin directory is a listener script that is similar to the repl, but using rre (so provides the additional functionality from rre)
11:46:32 <wuehlmaus> yes, works
11:46:42 <wuehlmaus> great, thanks so much, crc
11:47:01 <wuehlmaus> it is wonderful to have a wish granted so early
12:10:12 <wuehlmaus> workd with apple, too
12:10:19 <wuehlmaus> works
12:14:54 <crc> good
12:17:30 <crc> I should probably do a unix: namespace with more of the standard system functions as words (fork, exec, etc)
12:30:02 <wuehlmaus> great idea
14:24:25 <crc> latest commit renames `sys:system` to `unix:system` and adds `unix:fork`, `unix:getpid`, `unix:exit`, `unix:exec0`, `unix:exec1`, `unix:exec2`, and `unix:exec3`.
14:24:59 <crc> `unix:exit` takes a return code from the stack; the exec forms take multiple arguments. E.g.,
14:25:24 <crc> `'/bin/cat '/etc/motd unix:exec1`
14:25:42 <crc> `'/usr/bin/cal '1 '2019 unix:exec2`
14:25:55 <crc> (paths will need to be adjusted for your system)
14:26:41 <crc> if an exec word fails, it'll return the err code (see errno.h on your system's standard include files for a list of these)
20:00:31 <crc> I've also added `unix:wait` and `unix:kill`, and some notes to interfaces/rre.forth on the words in the unix: namespace.
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23:59:59 --- log: ended retro/17.11.04