[Octave-bug-tracker] [bug #59483] GUI prints "undecodable token:" on every prompt

[Lars Kindermann]

Follow-up Comment #9, bug #59483 (project octave):

Here is the answer from the readline developer: 


On 11/19/20 2:42 PM, Lars Kindermann wrote:
> Hi,
>
> Debian testing yesterday updated libreadline8 to 8.1~rc2-2
> Since then the GUI of GNU Octave (all versions) throws the error message
>
> "undecodable token: \001b(hex)[?2004l"
>
> See: https://savannah.gnu.org/bugs/?59483
>
> Any idea what the cause may be?

This is the termination sequence for bracketed paste mode, which is
enabled by default in readline-8.1:

rlprivate.h:#define BRACK_PASTE_INIT    "\033[?2004h"
rlprivate.h:#define BRACK_PASTE_FINI    "\033[?2004l\r"


You can either require the user to disable it, disable it from inside
octave:

rl_variable_bind ("enable-bracketed-paste", "off");

or set the terminal to "dumb"

rl_terminal_name = "dumb";

in which case it's turned off.

Chet

-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
         ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/


8.1 enables bracketed paste mode by default now. This means from the moment
when libreadline will be finally upgraded to 8.1, all Octave installations on
clean systems suddenly will be affected and have to disable the
'enable-bracketed-paste' manually.

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