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From: Jacob Sparre Andersen <sparre@nbi.dk>
Subject: Re: typed pipes
Date: Sat, 24 Feb 2007 14:37:02 +0100
Date: 2007-02-24T14:37:02+01:00	[thread overview]
Message-ID: <yge7iu7ekxt.fsf@hugsarin.dmusyd.edu> (raw)
In-Reply-To: _nMDh.34647$E02.13753@newsb.telia.net

Bj�rn Persson wrote:
> Jacob Sparre Andersen wrote:

>> Preferably also with typed pipes.
>
> How do you want typed pipes to work? Do you mean that if the writing
> program treats its standard output stream as a file of records,
> where each record contains two signed 16-bit integers and an array
> of five booleans, then the shell should force the reading program to
> treat its standard input stream the same way?

I am not sure if I would want the system to _force_ both ends of the
pipe to agree, but I would definitely want the reading end to be
_informed_ of what the writing end is doing.

But doing the Unchecked_Conversion once the data are inside the
reading process is probably the correct solution.

This could probably not be done on the shell level, since pipes are an
operating system feature, and not just a shell feature.

Greetings,

Jacob
-- 
�When Roman engineers built a bridge, they had to stand under it while
 the first legion marched across. If programmers today worked under
 similar ground rules, they might well find themselves getting much more
 interested in Ada!�                                     -- Robert Dewar



  parent reply	other threads:[~2007-02-24 13:37 UTC|newest]

Thread overview: 158+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-02-21 20:43 Ada.Command_Line and wildcards Gautier
2007-02-21 20:59 ` (see below)
2007-02-22  1:13   ` Marc A. Criley
2007-02-22  2:08   ` Adam Beneschan
2007-02-22  5:59     ` (see below)
2007-02-22  8:16   ` gautier_niouzes
2007-02-22 10:25     ` Simon Wright
2007-02-22 11:02     ` Alex R. Mosteo
2007-02-24  6:34       ` Martin Krischik
2007-02-24 11:46         ` Markus E Leypold
2007-02-24 14:54           ` Georg Bauhaus
2007-02-24 16:45             ` Markus E Leypold
2007-02-24 20:08               ` Jacob Sparre Andersen
2007-02-24 20:45                 ` Georg Bauhaus
2007-02-25  0:39                   ` Björn Persson
2007-02-25 16:29                   ` Martin Krischik
2007-02-24 20:26               ` Georg Bauhaus
2007-02-25  7:46               ` Hyman Rosen
2007-02-25 13:19                 ` Georg Bauhaus
2007-03-05  1:07             ` Brian May
2007-03-05  1:39               ` Markus E Leypold
2007-03-06  3:48                 ` Brian May
2007-03-05 12:16               ` Georg Bauhaus
2007-03-05 13:20                 ` Markus E Leypold
2007-03-06 12:56                   ` Georg Bauhaus
2007-03-06 15:07                     ` Markus E Leypold
2007-03-07 22:06                       ` Georg Bauhaus
2007-03-08  5:07                         ` Simon Wright
2007-03-08  9:19                           ` Markus E Leypold
2007-03-08  9:28                           ` Georg Bauhaus
2007-03-08  9:16                         ` Markus E Leypold
2007-03-09 13:33                           ` Georg Bauhaus
2007-03-09 17:11                             ` Markus E Leypold
2007-03-09 18:22                               ` Dmitry A. Kazakov
2007-03-09 19:02                                 ` Markus E Leypold
2007-03-09 20:04                                   ` Dmitry A. Kazakov
2007-03-10 10:40                                     ` Markus E Leypold
2007-03-11  0:15                                 ` Hyman Rosen
2007-03-11  7:59                                   ` Dmitry A. Kazakov
2007-03-11 14:55                                     ` Markus E Leypold
2007-03-12 13:32                                     ` Hyman Rosen
2007-03-12 14:14                                       ` Dmitry A. Kazakov
2007-03-12 15:08                                         ` Markus E Leypold
2007-03-16  8:06                                           ` Brian May
2007-03-16 12:53                                             ` Markus E Leypold
2007-03-10  2:12                               ` Randy Brukardt
2007-03-10 10:52                                 ` Markus E Leypold
2007-03-10 15:48                               ` Georg Bauhaus
2007-03-10 18:11                               ` Jacob Sparre Andersen
2007-03-10 18:42                                 ` Markus E Leypold
2007-03-12 14:25                                   ` Jacob Sparre Andersen
2007-03-12 15:17                                     ` Markus E Leypold
2007-03-09 13:41                       ` Robert Deininger
2007-03-09 17:15                         ` Markus E Leypold
2007-03-09 18:58                           ` Larry Kilgallen
2007-03-10 10:27                             ` Markus E Leypold
2007-03-06 15:08                     ` Jacob Sparre Andersen
2007-03-07 19:21                     ` Hyman Rosen
2007-03-07 20:27                       ` Markus E Leypold
2007-03-07 21:12                       ` Georg Bauhaus
2007-03-06  3:07                 ` Brian May
2007-02-24 18:28           ` Martin Krischik
2007-02-24 13:04         ` Larry Kilgallen
2007-02-24 16:16           ` Markus E Leypold
2007-02-25 14:18             ` Larry Kilgallen
2007-03-05  1:03         ` Brian May
2007-03-05 10:34           ` Martin Krischik
2007-03-05 20:46             ` Simon Wright
2007-02-22 11:19     ` Jean-Pierre Rosen
2007-02-22 13:49       ` Maciej Sobczak
2007-02-22 14:25         ` Jean-Pierre Rosen
2007-02-22 15:12           ` Larry Kilgallen
2007-02-22 15:15           ` Ludovic Brenta
2007-02-22 15:54             ` Dmitry A. Kazakov
2007-02-22 18:26               ` Markus E Leypold
2007-02-22 19:34                 ` Dmitry A. Kazakov
2007-02-22 20:38                   ` Simon Wright
2007-02-23  8:43                     ` Dmitry A. Kazakov
2007-02-25 16:35                 ` wildcards with unix shells Martin Krischik
2007-02-22 16:20             ` Ada.Command_Line and wildcards Jean-Pierre Rosen
2007-02-22 18:34               ` Markus E Leypold
2007-02-22 19:30                 ` Niklas Holsti
2007-02-23  1:01                 ` Randy Brukardt
2007-02-23  4:44                   ` Jeffrey R. Carter
2007-02-23  5:06                   ` Anders Wirzenius
2007-02-24 16:37                     ` Simon Wright
2007-02-25 16:42                       ` Martin Krischik
2007-02-26 20:51                         ` Simon Wright
2007-02-27  7:11                           ` Martin Krischik
2007-02-27 21:32                             ` Björn Persson
2007-02-27 21:56                               ` Georg Bauhaus
2007-02-27 22:53                                 ` Markus E Leypold
2007-02-28 13:55                                   ` Georg Bauhaus
2007-02-28 14:25                                     ` Markus E Leypold
2007-02-26 11:59                       ` Anders Wirzenius
2007-02-26 14:46                         ` Larry Kilgallen
2007-02-23  8:43                   ` Jacob Sparre Andersen
2007-02-23 11:34                     ` Jean-Pierre Rosen
2007-02-24 13:40                       ` Jacob Sparre Andersen
2007-02-25 16:57                     ` Martin Krischik
2007-02-26 21:27                       ` Björn Persson
2007-02-27  7:18                         ` Martin Krischik
2007-02-23  8:49                 ` Jean-Pierre Rosen
2007-02-23  9:29                   ` Jacob Sparre Andersen
2007-02-22 17:07       ` Adam Beneschan
2007-02-22 18:40         ` Markus E Leypold
2007-02-23 10:47         ` Rob Norris
2007-02-23 13:28         ` brian.b.mcguinness
2007-02-23 13:56           ` Georg Bauhaus
2007-02-23 17:10           ` Adam Beneschan
2007-02-22 20:12       ` Gautier
2007-02-23  1:15       ` Robert A Duff
2007-02-23  9:25         ` Jacob Sparre Andersen
2007-02-24  1:18           ` typed pipes (was: Ada.Command_Line and wildcards) Björn Persson
2007-02-24  8:16             ` typed pipes Dmitry A. Kazakov
2007-02-24 13:37             ` Jacob Sparre Andersen [this message]
2007-02-24 16:33               ` Björn Persson
2007-02-24 20:17                 ` Jacob Sparre Andersen
2007-02-25  1:11                   ` Björn Persson
2007-02-25  7:03                     ` Jacob Sparre Andersen
2007-02-23 14:45         ` Ada.Command_Line and wildcards Larry Kilgallen
2007-02-24 19:24           ` Robert A Duff
2007-02-25  6:29             ` Hyman Rosen
2007-02-25 12:21               ` Robert A Duff
2007-02-25 16:22                 ` Pascal Obry
2007-02-25 16:44                   ` Dmitry A. Kazakov
2007-02-26  5:03                     ` Hyman Rosen
2007-02-26  8:44                       ` Dmitry A. Kazakov
2007-02-26 17:11                         ` Hyman Rosen
2007-02-26 17:34                           ` Markus E Leypold
2007-02-27 16:13                             ` Georg Bauhaus
2007-02-27 16:19                               ` Markus E Leypold
2007-02-27 16:39                                 ` Georg Bauhaus
2007-02-27 17:56                                   ` Markus E Leypold
2007-02-27 20:29                               ` Randy Brukardt
2007-02-26 20:30                           ` Dmitry A. Kazakov
2007-02-27  0:34                       ` Randy Brukardt
2007-02-27 14:52                         ` Hyman Rosen
2007-02-27 20:43                           ` Randy Brukardt
2007-02-27 20:56                           ` Dmitry A. Kazakov
2007-02-25 17:50                 ` Jeffrey R. Carter
2007-02-23 16:58         ` Adam Beneschan
2007-02-23 19:12           ` Hyman Rosen
2007-02-23 19:26             ` Adam Beneschan
2007-02-25 17:05               ` Martin Krischik
2007-02-24  1:19           ` Björn Persson
2007-02-24  3:46             ` Adam Beneschan
2007-02-24 11:42               ` Markus E Leypold
2007-02-25 17:02             ` Martin Krischik
2007-02-23 19:04         ` Hyman Rosen
2007-02-23 19:30           ` Adam Beneschan
2007-02-23 19:46             ` Dmitry A. Kazakov
2007-02-23 20:07             ` Markus E Leypold
2007-02-24  1:18             ` Björn Persson
2007-02-24 19:22           ` Robert A Duff
2007-02-24 20:26             ` Dmitry A. Kazakov
2007-02-25  7:32             ` Hyman Rosen
2007-02-21 21:43 ` Dr. Adrian Wrigley
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