Re: piping escape into dosemu

[TW <zupftom@googlemail.com>]

2010/3/9 Mike McCarty <Mike.McCarty@sbcglobal.net>:
> TW wrote:
>> [...] I start dosemu like
>>
>>  dosemu -input 'thedosapp.exe\r\^['
>>
>> because in the readme[1] I'm told that "\^[" is the syntax for the
>> escape key.  At least that's how I interpret the "\^x" section.
>
> [...] I suspect
> that you are typing three characters '\', '^', and '['. That
> is not the intended action. What is intended is that you type
> a BACKSLASH ('\'), and an ESC. The shell displays on your
> screen two characters when you type ESC, but that is a single keystroke.
>

O.K., I'm beginning to understand what you're talking about.  Up to
now I didn't really use anything but bash.  At least for me, pressing
the escape key (however often) does not display anything, but when
trying sh and dash, I see that pressing ESC "visually" resuts in ^[.
And yes, now something like

  dosemu -input 'thedosapp.exe\r\^['

indeed works, many thanks for pointing me to this!  Unfortunately, for
some reason this only works with the -input switch, but not when
piping, like

  echo "keystroke \^[" > dospipe

(where ^[ is what results from pressing ESC).  It doesn't work through
dosctrl or Ruby either.  I wonder why this is supported by the -input
switch, but not by the keystroke command...

>
>> pretty basic.  All I figured out is that the uhook_keystroke()
>> function in dosemu/src/base/misc/userhook.c must be the function that
>> handles the keystroke command.
>
> Well, let's hope that gets you going!
>

I may try to find out more, but I believe fixing it (i.e. making the
string representing a piped keystroke sequence is parsed in the same
manner that a keystroke string passed on the command line is) will be
beyond my possibilities.

Thanks for your help!

Thomas
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