Extra echo when using libguilereadline

Extra echo when using libguilereadline

[Eli Zaretskii]

I tried today the recipe from the manual that says how to load the
readline support:

  scheme@(guile-user)> ,m (ice-9 readline)
  scheme@(ice-9 readline)> (activate-readline)

This works, but has the side effect that everything I type is echoed
one more time, as shown below for 2 lines I typed:

  scheme@(ice-9 readline)> %load-path
  %load-path
  $1 = ("d:/usr/share/guile/2.0" "d:/usr/share/guile/site/2.0" "d:/usr/share/guile/site" "d:/usr/share/guile")
  scheme@(ice-9 readline)> ,q
  ,q

Is this expected, or is this a bug?  If the former, how can I disable
this double echo?

Re: Extra echo when using libguilereadline

[Taylan Ulrich Bayirli/Kammer]

Eli Zaretskii <eliz@gnu.org> writes:

> I tried today the recipe from the manual that says how to load the
> readline support:
>
>   scheme@(guile-user)> ,m (ice-9 readline)
>   scheme@(ice-9 readline)> (activate-readline)
>
> This works, but has the side effect that everything I type is echoed
> one more time, as shown below for 2 lines I typed:
>
>   scheme@(ice-9 readline)> %load-path
>   %load-path
>   $1 = ("d:/usr/share/guile/2.0" "d:/usr/share/guile/site/2.0" "d:/usr/share/guile/site" "d:/usr/share/guile")
>   scheme@(ice-9 readline)> ,q
>   ,q
>
> Is this expected, or is this a bug?  If the former, how can I disable
> this double echo?

On 2.0.11, I cannot reproduce this in any of xterm, M-x term, or M-x
shell.  It feels like a familiar issue though, probably under a peculiar
setup; is there anything noteworthy about how you use the REPL, or your
terminal emulator, or such?

Taylan

Re: Extra echo when using libguilereadline

[Eli Zaretskii]

> From: Taylan Ulrich Bayirli/Kammer <taylanbayirli@gmail.com>
> Cc: guile-devel@gnu.org
> Date: Sat, 16 Aug 2014 14:23:24 +0200
> 
> >   scheme@(ice-9 readline)> %load-path
> >   %load-path
> >   $1 = ("d:/usr/share/guile/2.0" "d:/usr/share/guile/site/2.0" "d:/usr/share/guile/site" "d:/usr/share/guile")
> >   scheme@(ice-9 readline)> ,q
> >   ,q
> >
> > Is this expected, or is this a bug?  If the former, how can I disable
> > this double echo?
> 
> On 2.0.11, I cannot reproduce this in any of xterm, M-x term, or M-x
> shell.  It feels like a familiar issue though, probably under a peculiar
> setup; is there anything noteworthy about how you use the REPL, or your
> terminal emulator, or such?

It's a normal Windows terminal.  I just invoke the guile executable
and type at the prompt.

Could this be due to failure to recognize that stdin/stdout are
connected to a console?

More generally, where's the code that could cause these echoes?

Re: Extra echo when using libguilereadline

[Taylan Ulrich Bayirli/Kammer]

Eli Zaretskii <eliz@gnu.org> writes:

>> From: Taylan Ulrich Bayirli/Kammer <taylanbayirli@gmail.com>
>> Cc: guile-devel@gnu.org
>> Date: Sat, 16 Aug 2014 14:23:24 +0200
>> 
>> >   scheme@(ice-9 readline)> %load-path
>> >   %load-path
>> >   $1 = ("d:/usr/share/guile/2.0" "d:/usr/share/guile/site/2.0" "d:/usr/share/guile/site" "d:/usr/share/guile")
>> >   scheme@(ice-9 readline)> ,q
>> >   ,q
>> >
>> > Is this expected, or is this a bug?  If the former, how can I disable
>> > this double echo?
>> 
>> On 2.0.11, I cannot reproduce this in any of xterm, M-x term, or M-x
>> shell.  It feels like a familiar issue though, probably under a peculiar
>> setup; is there anything noteworthy about how you use the REPL, or your
>> terminal emulator, or such?
>
> It's a normal Windows terminal.  I just invoke the guile executable
> and type at the prompt.
>
> Could this be due to failure to recognize that stdin/stdout are
> connected to a console?
>
> More generally, where's the code that could cause these echoes?

For what it's worth, "cat | guile | cat" works fine for me, except for
C-a, C-e, etc. inserting ^A, ^E, etc., but no echoing.

Taylan