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| From | Bartc <bc@freeuk.com> |
|---|---|
| Newsgroups | comp.lang.c |
| Subject | Re: Merging .h and .c source files |
| Date | 2015-06-19 01:00 +0100 |
| Organization | A noiseless patient Spider |
| Message-ID | <mlvm15$et$1@dont-email.me> (permalink) |
| References | (6 earlier) <87y4jhouyp.fsf@bsb.me.uk> <ba1fcec1-7e80-40d3-a9d8-6e8cea465430@googlegroups.com> <87mvzwpyqd.fsf@bsb.me.uk> <58d5bb07-b98a-4a8c-95d5-1e117c1451df@googlegroups.com> <87h9q4poyo.fsf@bsb.me.uk> |
On 19/06/2015 00:38, Ben Bacarisse wrote: > Malcolm McLean <malcolm.mclean5@btinternet.com> writes: > >> On Thursday, June 18, 2015 at 9:07:22 PM UTC+1, Ben Bacarisse wrote: >>> >>> All editors of the period operated under the same restrictions. >>> Supporting the arrow keys does not require updating the whole screen. >>> >> A lot of early terminals could send, but not delete. So if you >> typed a character and wanted to echo it to the line buffer, that was >> no problem. The server, on some massive 64K machine serving twenty >> terminals, would send you the ascii character. However if you wanted to >> delete, it had no way of doing that, other than sending you a whole >> screen. So deleting a line could be painfully slow. >> As for arrow keys, they were simply unrealistic. > > vi has always permitted screen movement commands so arrow keys are not > unrealistic -- so much so that vi has supported them since I can > remember (that's almost back to it's very start -- about 1979). If it > did not support them pre-'79 it is not due to anything about processor > power, baud rate or terminal capabilities. > > These historical ramblings can be an explanations of something that > was not the case. There were still some teleprinter terminals being used at the time that printed onto a paper roll. Text editors working on such a terminal were very restricted in what they could do. Sometimes a VDU was substituted for the teletype, but if still running the same software that thought it was printing onto paper, then that wouldn't magically give it the ability to randomly update the screen. However you probably got a faster baud rate and you saved paper. And it was quieter. Obviously this 'vi' did take advantage of what a video display could do, although even then, it would have to keep track of what was currently being displayed, as I'm not sure the contents of the internal display memory were accessible via the connection. Also, unless the terminal had extra display memory that remembered what had scrolled off the top of the screen, then if the cursor kept moving upwards, preceding lines would have to be resent, at 5-10 lines per second, whatever the keyboard repeat rate was. That's not practical at 110 baud or 10cps. So maybe you used an advanced terminal, or had a fast connection, as well as the right software. -- Bartc
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Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-17 16:27 -0700
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 00:35 +0100
Re: Merging .h and .c source files Reinhardt Behm <rbehm@hushmail.com> - 2015-06-18 12:51 +0800
Re: Merging .h and .c source files Michael Sorn <invalid@example.com> - 2015-06-18 13:27 +0000
Re: Merging .h and .c source files David Brown <david.brown@hesbynett.no> - 2015-06-18 15:38 +0200
Re: Merging .h and .c source files gazelle@shell.xmission.com (Kenny McCormack) - 2015-06-18 13:42 +0000
Re: Merging .h and .c source files Reinhardt Behm <rbehm@hushmail.com> - 2015-06-18 22:47 +0800
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 06:21 -0700
Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-18 16:07 +0200
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 15:29 +0100
Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-18 16:48 +0200
Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-06-18 21:52 +0000
Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 03:57 +0200
Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-06-19 10:02 +0000
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 11:24 +0100
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 12:10 +0100
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 13:24 +0100
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 14:09 +0100
Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 15:30 +0200
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 17:34 +0100
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 17:06 +0100
Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-19 09:40 -0700
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 18:12 +0100
Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-19 11:25 -0700
Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-20 07:31 -0700
Re: Merging .h and .c source files glen herrmannsfeldt <gah@ugcs.caltech.edu> - 2015-06-20 17:07 +0000
Re: Merging .h and .c source files "Charles Richmond" <numerist@aquaporin4.com> - 2015-06-23 17:44 -0500
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-24 01:48 +0100
Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-20 12:37 -0700
Re: Merging .h and .c source files Robert Wessel <robertwessel2@yahoo.com> - 2015-06-19 22:04 -0500
Re: Merging .h and .c source files Les Cargill <lcargill99@comcast.com> - 2015-06-19 22:36 -0500
Re: Merging .h and .c source files Robert Wessel <robertwessel2@yahoo.com> - 2015-06-20 01:23 -0500
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 17:54 +0100
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 19:45 +0100
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-21 07:19 -0700
Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-06-20 08:52 +1200
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 18:44 -0700
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 08:26 -0700
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 16:41 +0100
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-18 17:13 +0100
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 09:26 -0700
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-18 18:03 +0100
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 18:33 -0700
Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-18 10:28 -0700
Re: Merging .h and .c source files gazelle@shell.xmission.com (Kenny McCormack) - 2015-06-18 17:28 +0000
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-18 21:07 +0100
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-18 15:04 -0700
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-06-19 00:38 +0100
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-19 01:00 +0100
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-06-19 00:10 -0700
Re: Merging .h and .c source files mark.bluemel@gmail.com - 2015-06-19 00:56 -0700
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-19 09:18 +0100
Re: Merging .h and .c source files John Bode <jfbode1029@gmail.com> - 2015-06-24 08:43 -0700
Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-24 11:15 -0700
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 19:23 +0100
Re: Merging .h and .c source files James Kuyper <jameskuyper@verizon.net> - 2015-06-24 14:40 -0400
Re: Merging .h and .c source files Richard Heathfield <rjh@cpax.org.uk> - 2015-06-24 19:45 +0100
Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-18 10:19 -0700
Re: Merging .h and .c source files gwowen <gwowen@gmail.com> - 2015-06-19 05:29 -0700
Re: Merging .h and .c source files Keith Thompson <kst-u@mib.org> - 2015-06-19 08:26 -0700
Re: Merging .h and .c source files "Morten W. Petersen" <morphex@gmail.com> - 2015-06-19 04:08 +0200
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 17:53 -0700
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-10 18:40 -0700
Re: Merging .h and .c source files Udyant Wig <udyantw@gmail.com> - 2015-07-11 10:19 +0530
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 15:59 -0700
Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-07-13 18:50 +0000
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 08:37 -0700
Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-07-19 21:30 +0000
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-20 09:46 -0700
Re: Merging .h and .c source files Richard Damon <Richard@Damon-Family.org> - 2015-07-11 20:08 -0400
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-11 18:26 -0700
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 08:38 -0700
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-11 15:57 -0700
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-11 16:30 -0700
Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-07-12 15:51 +1200
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-12 06:03 -0700
Re: Merging .h and .c source files Ben Bacarisse <ben.usenet@bsb.me.uk> - 2015-07-12 21:36 +0100
Re: Merging .h and .c source files gazelle@shell.xmission.com (Kenny McCormack) - 2015-07-12 21:27 +0000
Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-07-13 10:00 +1200
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-13 04:16 -0700
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-07-13 12:47 +0100
Re: Merging .h and .c source files Ian Collins <ian-news@hotmail.com> - 2015-07-14 08:32 +1200
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 11:33 -0700
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 11:24 -0700
Re: Merging .h and .c source files Malcolm McLean <malcolm.mclean5@btinternet.com> - 2015-07-15 12:29 -0700
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-20 09:50 -0700
Re: Merging .h and .c source files raltbos@xs4all.nl (Richard Bos) - 2015-07-13 18:52 +0000
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-15 08:52 -0700
Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-07-15 20:33 -0700
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-20 09:53 -0700
Re: Merging .h and .c source files Tim Rentsch <txr@alumni.caltech.edu> - 2015-07-10 17:47 -0700
Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-18 11:18 -0700
Re: Merging .h and .c source files David Kleinecke <dkleinecke@gmail.com> - 2015-06-18 11:34 -0700
Re: Merging .h and .c source files Morris Dovey <mrdovey@iedu.com> - 2015-06-18 15:59 -0500
Re: Merging .h and .c source files Philipp Klaus Krause <pkk@spth.de> - 2015-06-19 12:46 +0200
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-18 19:23 +0100
Re: Merging .h and .c source files Joe Pfeiffer <pfeiffer@cs.nmsu.edu> - 2015-06-18 07:48 -0600
Re: Merging .h and .c source files Bartc <bc@freeuk.com> - 2015-06-18 18:27 +0100
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