OpenEuphoria

Re: RDS! ed in FreeBSD

• Posted by "C. K. Lester" <euphoric at cklester.com> Oct 16, 2003
• 455 views

> C. K. Lester wrote:
> >
> > For example, when I press my up arrow, I get the top-line prompt and
> > "0A" is printed at the prompt. That's the second and third number of the
> > sequence returned by wait_key(). So why is ed.ex not responding to it?!
>
> For you, up-arrow generates 27 79 65
> It's as if you had typed: Esc 'O' 'A'

I figured as much, but in the code you trap the first ESCAPE value (27) and
check for the subseqeunt values.

> Maybe on your machine, the escape sequence stream,
> as seen by wait_key/get_key, has -1 after Esc so ed
> thinks you actually typed Esc followed by O and A.

I don't see any -1 when i run key, using either get_key() or wait_key().

> You might have to choose another key to perform the
> function of Esc, or maybe you need to allow for a couple
> of -1's between escape sequence codes.

So, after trapping ESCAPE, should I do something like

    while a[1] = -1 do
        a = a[2..length(a)]
    end while

and strip those out first?

Unfortunately, I'm at work right now, so this will have to wait 'til
tonight. :)