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Re: multi-line field issues

From: Thomas Dickey
Subject: Re: multi-line field issues
Date: Thu, 30 Aug 2012 21:43:49 -0400
User-agent: Mutt/1.5.20 (2009-06-14)

On Thu, Aug 30, 2012 at 09:20:04PM -0300, tjareson wrote:
> Unfortunately things were not as easy as I first thought:
> Since I upgraded from ncurses 5.7 to 5.9 the multi line field issue
> is solved, but all off a sudden German Umlaut (äöü etc.) are not
> working anymore when using form_driver, which worked before with
> exactly the same source code.
> Of course, locale settings didn't change. Also setlocale-settings
> command in the source is not change (de_DE.UTF-8 as before).
> Now everytime I press an Umlaut key I get 3-4 "weird" chars instead
> of that one sign displayed.
> ncursesw / formw etc. is linked like it was before. Also the make
> was done with wide-character support. Nothing changed accept the
> version.
> Was there any major change regarding utf8 / locale support since
> 5.7? Honestly I'm a little bit lost.

There were various bug-fixes - see

For instance I see a fix in 5.8 for field_buffer which might be the
one you're referring to.

> The funny thing is: data I read from the database get displayed
> properly in forms, only entering umlauts with the keyboard is not
> working anymore.

Testing by pasting various characters into ncurses' demo_forms,
I'm not seeing the problem.
> What might be worth to mention: I'm using wgetch() to get keyboard
> inputs. (as before) If I'm using wget_wch() instead, I only get an
> empty character shown by form_driver.

It's not generally part of a package, but ncurses has a trace feature
which can be compiled-in.  Using the trace is where I'd start for
analyzing some odd problem.
> Am 30.08.2012 18:00, schrieb tjareson:
> >
> >Am 30.08.2012 07:13, schrieb Thomas Dickey:
> >>On Wed, Aug 29, 2012 at 09:34:01PM +0000, Tjareson wrote:
> >>>Sentinel <sentinel.2001 <at> gmx.com> writes:
> >>>
> >>>[...]
> >>>>I have been studying some apps that
> >>>>use
> >>>>ncurses and found that none of them use multiline. Most just
> >>>>invoke vim or
> >>>>write their own.
> >>>>
> >>>>Thus, at the time of set_field_buffer and field_buffer if data
> >>>>transformation can be done so a file can be read and set in, and then
> >>>>saved out, and it remains as is, it would be great.
> >>>I'm currently implementing an application using ncurses and
> >>>also tried to use a
> >>>multiline field to edit longer texts.
> >>>
> >>>Is there any solution to that issue? I have the problem that I
> >>>can edit properly
> >>>in a multiline field, I even can load a TEXT-field from MYSQL
> >>>into it and it
> >>>gets displayed properly (also with new lines etc.)
> >>>
> >>>But I was never able to get more back from a multiline field
> >>>that the first row.
> >>>
> >>>Someone wrote there is an application-wise workaround for
> >>>that. Any ideas what
> >>>  to do solve that issue?
> >>The example "demo_forms" seems to work - I'm not sure what issue you're
> >>reporting.  (A short sample program might help).
> >>
> >Thanks a lot for quick reply. I'm sorry but I had to find out that
> >this Ubuntu here was running with an ncurses version 5.7 for
> >whatever reason. After updating everything, all is working fine.
> >(Could have checked that before...)
> >And: ncurses is great. Programming text interfaces is so much
> >easier with it. :-) Thanks for maintaining all this.
> >
> >Tjareson
> >
> >
> >
> >

Thomas E. Dickey <address@hidden>

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