BUG?: Konsole: ZLE_RPROMPT_INDENT swallows last PS1 character

BUG?: Konsole: ZLE_RPROMPT_INDENT swallows last PS1 character

[Павлов Николай Александрович]

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Consider the following command

    PS1='%% ' RPS1='#' ZLE_RPROMPT_INDENT=0 zsh -f

. I would expect this result in

    !% _          #!

(where '!' are terminal emulator boundaries and '_' is cursor position). Unfortunately this does work in fbterm, rxvt-unicode and xterm, but in konsole this produces the following:

    !%_           #!

(note that there is no space after per cent character). Same thing happens with any other trailing character. Anybody knows whether this is zsh or konsole bug and how to fix it? Fish has no such problem, so I would assume zsh.

Using zsh-5.0.7, konsole-4.12.5.
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Re: BUG?: Konsole: ZLE_RPROMPT_INDENT swallows last PS1 character

[Bart Schaefer]

On Nov 22, 10:49pm, kp-pav@yandex.ru wrote:
}
} Anybody knows whether this is zsh or konsole bug and how to fix it?
} Fish has no such problem, so I would assume zsh.

Fish, as I understand it, does full-screen terminal management.  Zsh does
only the minimum to manage the lines occupied by the input buffer, and
leaves the rest of the display alone.

This means that zsh may be affected by terminal auto-scrolling (or lack
thereof) at the ends of lines or in the lower right corner, in ways that
a program designed to track the entire screen is not.  This is not a bug,
it's a deliberate design decision, and if what you want is fish then you
should use fish.

The fix is to NOT set ZLE_RPROMPT_INDENT=0.  The variable exists so you
can use it to override zsh if it guesses wrong about where it's safe to
put the rprompt; it seems that for konsole it had guessed correctly.

Re: BUG?: Konsole: ZLE_RPROMPT_INDENT swallows last PS1 character

[Bart Schaefer]

On Nov 22,  3:07pm, Bart Schaefer wrote:
}
} it's a deliberate design decision, and if what you want is fish then you
} should use fish.

Sorry, that was unnecessarily snippy.