From: noemail@basdxcqvbe.com
On Tue, 15 Jun 2021 21:44:17 -0700 (PDT)
"muta...@gmail.com" wrote:
> First imagine (in some cases, it is a reality), that the
> following things exist as physical objects that may
> have been there since 1990:
>
> ASCII ANSI terminal
> EBCDIC ANSI terminal
> ASCII 3270 terminal
> EBCDIC 3270 terminal
> ASCII HTML terminal
> EBCDIC HTML terminal
>
> ASCII Telnet+ terminal
> EBCDIC Telnet+ terminal
>
> And I have emulators for all of the above, called
> termansi.exe, term3270.exe, termhtml.exe and
> termtel.exe. The terminal emulators are mainly
> focused on running on PDOS/386.
>
> The name Telnet+ may be confusing.
>
> What I'm looking for is a magical terminal, that, when
> given an appropriate control sequence, will switch
> between any of the "big 3" terminal types above, ie
> ANSI, 3270, HTML.
>
> This way I can have one C program on PDOS/3X0 that
> emits ANSI control characters, and another that emits
> 3270 control characters, and at the command prompt
> I can issue some sort of command (tset?) that switches
> between the terminal types dynamically.
>
> But let's focus on EBCDIC ANSI first. That will be the
> standard control sequence that any of my applications
> emit.
>
> Rather than burden the OS with the need to support
> multiple application-generated control sequences, I
> was thinking that what I need is a "terminal controller".
>
> PDOS/3X0 will not speak directly (via CCW) to some
> terminal calling via the internet, but will instead speak
> to a termcont.exe running on my Windows machine,
> which accepts e.g. a term3270 caller, and will translate
> the application EBCDIC ANSI stream into an EBCDIC
> 3270 stream.
>
> Even though my terminal controller will only accept
> (somehow) one connection at a time, it will accept
> different terminal types by if they use port 80 it is
> assumed that they are ASCII HTML. Port 64000 is
> assumed to be EBCDIC ANSI.
>
> Most interesting to me at the moment is the EBCDIC
> ANSI to ASCII HTML conversion.
>
> If my PDOS/3X0 application does 3 printfs with newline,
> I am expecting (my requirements at the moment)
> fresh HTML pages to be generated. The first page will
> have the marker with just one line (with
> in it). The second page will be the same HTML marker
> with 2
etc. Now the bit that is outside my knowledge.
> What is the simplest way, after having finished outputting
> all HTML pages, to then turn around and request a single
> character to be entered? I am happy to put out another
> HTML page, perhaps this time with the "javascript"
> keyword to solicit a function to input a key. I want all
> keys to be able to be entered by the user, e.g. 'A' or
> ctrl-a or cursor up. I don't care what HTML response
> that generates, so long as it is standard. That HTML
> response will be converted into EBCDIC ANSI by the
> terminal controller, then fed back to PDOS/3X0, and
> finally into some PDOS/3X0 application, and my eye
> is on micro-emacs. In other words, I want to drive my
> existing micro-emacs executable that produces
> EBCDIC ANSI sequences, from a browser.
>
> Is that possible or am I missing something?
>
No idea.
All I know is that the most powerful terminal I ever
used was a VT220. Of course, that was pre-html.
VT220
-ANSI escape sequences
-international character sets
-define new character sets
https://en.wikipedia.org/wiki/VT220
--
What is hidden in the ground, when found, is hidden there again?
--- SoupGate-Win32 v1.05
* Origin: you cannot sedate... all the things you hate (1:229/2)
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