| [hatari-devel] libreadline and backspace (was: CAPS support) |
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- To: hatari-devel@xxxxxxxxxxxxxxxxxxx
- Subject: [hatari-devel] libreadline and backspace (was: CAPS support)
- From: Christian Zietz <czietz@xxxxxxx>
- Date: Sun, 19 Jan 2020 19:54:20 +0100
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Christer Solskogen schrieb:
> I use readline 8.0p1 (from git) plus a patch to make it compile for
> mingw-w64 (https://github.com/mxe/mxe/blob/master/src/readline-1.patch)
> If anyone has a patch for the backspace problem (I think the official
> hatari builds use a ancient version of termcap, which don't have that
> bug. I use ncurses to provide termcap)
A quick bug analysis by single stepping through the relevant parts of
the binary: readline calls _rl_backspace() [1] which then calls tputs()
from ncurses. tputs() exits with an error in this line: [2].
I don't know much about termcap/ncurses. Presumably, something is not
initialized correctly. However, if I binary-patch libreadline8.dll to
use the fallback [3] instead of tputs(), the backspace works for me.
This is a work-around I can live with.
Regards
Christian
[1]
<http://git.savannah.gnu.org/cgit/readline.git/tree/terminal.c?h=readline-8.0#n652>.
[2]
<https://github.com/mirror/ncurses/blob/c55d387cebf1cee4757ca2c2ef4fbeae59ee4175/ncurses/tinfo/lib_tputs.c#L297>
[3]
<http://git.savannah.gnu.org/cgit/readline.git/tree/terminal.c?h=readline-8.0#n662>
--
Christian Zietz - CHZ-Soft - czietz@xxxxxxx
WWW: http://www.chzsoft.de/
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