Re: [Lynx-dev] Keymap Problem

[Thomas Dickey]

On Sun, 24 Sep 2006, Doug Kaufman wrote:

> On Fri, 22 Sep 2006, Thomas Dickey wrote:
>
> > On Thu, 21 Sep 2006, address@hidden wrote:
> >
> > > i use Lynx Version 2.8.5 rel.1 (04 Feb 2004)  under DOS 6.22
> > > and try to use the following keys.
> >
> > KEYMAP is an optional feature, and (I don't recall why) is not supported
> > under DOS or Cygwin (reading the code to see how it is enabled).
>
> KEYMAP is supported and works fine under DOS (and I believe Cygwin).

ok - I was reading this chunk in LYCurses.h:

#if !defined(__DJGPP__) && !defined(__CYGWIN__)
#define USE_KEYMAPS             1
#endif

(I also recall reading some comments to the effect that the pad support in
PDCurses didn't work well - but that's a while back).

> > > and i get the following error message.
> > >
> > > key remapping of { to SHIFT_LEFT failed
> > > key remapping of } to SHIFT_RIGHT failed
> > > key remapping of | to LINEWRAP_TOGGLE failed
> > >
> > > what is wrong here? and what must i do to work the keys?
>
> The problem is that the functions SHIFT_LEFT, SHIFT_RIGHT, and
> LINEWRAP_TOGGLE aren't supported under DOS or MINGW, but should be
> under Cygwin. They are built in only if USE_CURSES_PADS is defined.
> This is not defined when PDCurses is used (see LYCurses.h). If you
> define USE_CURSES_PADS anyway under PDCurses, the left and right shift
> functions work, but the linewrap toggle doesn't, so I am not sure that
> it is of much use.
>
> I don't know how to make the functions useful if you really need to
> run under DOS 6.22. If you can run under Windows, I would try a Cygwin
> binary, which should work. I haven't built a Cygwin binary myself in
> some time, but checking an old 2.8.5pre.3 which I built with ncurses
> 5.3, it behaves as does the current DJGPP version when USE_CURSES_PADS
> is defined (i.e. shifting works, but not linewrapping). Does the
> linewrapping function really work under some build conditions?

yes/no: when I wrote it, it did something useful;  I noticed and have it 
as a low-priority bug that IZ's patches changed it to do something which 
is only marginally useful (there are a lot of low-priority bugs ;-).

--
Thomas E. Dickey
http://invisible-island.net
ftp://invisible-island.net