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Simulating a terminal interface.

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  Simulating a terminal interface. luserdroog <luser.droog@gmail.com> - 2019-10-20 21:40 -0700
    Re: Simulating a terminal interface. "Michael Haufe (TNO)" <tno@thenewobjective.com> - 2019-10-21 15:08 -0700
    Re: Simulating a terminal interface. Arno Welzel <usenet@arnowelzel.de> - 2019-10-22 14:24 +0200
      Re: Simulating a terminal interface. Arno Welzel <usenet@arnowelzel.de> - 2019-10-22 14:26 +0200

#37589 — Simulating a terminal interface.

I've been playing with a toy project with idle dreams of 
making a PostScript interpreter app. But for starters I need
a very basic command-line type of interface.

I've had a couple of thoughts about different ways to do this.

1. Have a text input and "accept" the value and clear it on ENTER.
Append the accepted line to a div.

2. Have 2 divs and a fixed '|' character between them representing
the cursor. Then I could allow for basic cursor movement and editing
by using the two divs and a "buffer gap" algorithm (or is it a pattern?).

3. Something else beyond my imagination??

I tried both 1 and 2 (with no editing, just responding to ENTER).
Option 2 looks prettier on the screen without any help. But the js
to handle option 1 is vastly simpler.

Any thoughts or advice in this area?

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#37595

On Sunday, October 20, 2019 at 11:40:17 PM UTC-5, luserdroog wrote:
> I've been playing with a toy project with idle dreams of 
> making a PostScript interpreter app. But for starters I need
> a very basic command-line type of interface.
> 
> I've had a couple of thoughts about different ways to do this.
> 
> 1. Have a text input and "accept" the value and clear it on ENTER.
> Append the accepted line to a div.
> 
> 2. Have 2 divs and a fixed '|' character between them representing
> the cursor. Then I could allow for basic cursor movement and editing
> by using the two divs and a "buffer gap" algorithm (or is it a pattern?).
> 
> 3. Something else beyond my imagination??
> 
> I tried both 1 and 2 (with no editing, just responding to ENTER).
> Option 2 looks prettier on the screen without any help. But the js
> to handle option 1 is vastly simpler.
> 
> Any thoughts or advice in this area?


Here's 20 minutes of thought:

https://codepen.io/mlhaufe/pen/JjjEoaZ

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#37598

On 21.10.19 06:40, luserdroog wrote:

> I've been playing with a toy project with idle dreams of 
> making a PostScript interpreter app. But for starters I need
> a very basic command-line type of interface.
> 
> I've had a couple of thoughts about different ways to do this.

This may give you some ideas:

<https://github.com/shellinabox/shellinabox>



-- 
Arno Welzel
https://arnowelzel.de

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#37599

On 22.10.19 14:24, Arno Welzel wrote:

> On 21.10.19 06:40, luserdroog wrote:
> 
>> I've been playing with a toy project with idle dreams of 
>> making a PostScript interpreter app. But for starters I need
>> a very basic command-line type of interface.
>>
>> I've had a couple of thoughts about different ways to do this.
> 
> This may give you some ideas:
> 
> <https://github.com/shellinabox/shellinabox>

More specific:

<https://github.com/shellinabox/shellinabox/blob/master/shellinabox/vt100.jspp>


-- 
Arno Welzel
https://arnowelzel.de

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