Re: I don't understand ncurses dealing with control-ARROW

[Thomas Dickey]

On Wed, Dec 23, 2015 at 10:43:06PM +0100, Steffen Nurpmeso wrote:
> Hello!
> 
> Thomas Dickey <address@hidden> wrote:
>  |On Mon, Dec 21, 2015 at 12:24:04PM +0100, Steffen Nurpmeso wrote:
>  |> Thomas Dickey <address@hidden> wrote:
>  |>|On Thu, Dec 17, 2015 at 10:52:38PM +0100, Steffen Nurpmeso wrote:
>  |> 
>  |>|> I'm currently rewriting some code that deals with termcap (being
>  |>|> out of the question before) and don't actually understand how to
>  |>|> get at the control-ARROW etc. modifiers.
> 
>  |>|no, it's not interpolated, but all explicit.  You have to add the "-x"
>  |>|option of infocmp to see the extended/user-defined capabilities.
> 
>  |> unknown as user-defined" (what tic says for -x).  I.e., isn't that
>  |> a regular entry?  And: which standard do i have to read to be able
>  |> to be enabled to tell so by myself?  (Maybe rethorical question :)
> 
>  |I give some background here (in the subsection on "extensible terminfo":
>  |
>  |http://invisible-island.net/ncurses/tctest.html#history_myself
> 
> Indeed this is very interesting reading, thanks for the pointer
> and the page as such!
> 
>  |and some technical details here:
>  |
>  |http://invisible-island.net/ncurses/terminfo.src.html#toc-_N_C_U_R_S_\
>  |E_S__U_S_E_R-_D_E_F_I_N_A_B_L_E__C_A_P_A_B_I_L_I_T_I_E_S
> 
> Until now i was always looking into FreeBSD share/termcap/termcap
> when i had questions on such things,
> contrib/ncurses/misc/terminfo.src seems to be the better place.

I might make a manpage from the latter (it's on one of my to-do lists...)
 
>  ...
> 
>  |>|I recommend using tigetstr, since tgetstr (termcap) won't handle the
>  |>|longer names.
> 
> Now i see that terminfo.src explicitly states
> 
>   [.]Extended
>   # function keys do not use 2-character names, and are available only with
>   # terminfo.
> 
> And according to the first link this will be portable when used
> with tgetent() (itself being "simulated").
> 
>  |> It would work.  Good to know.  I've added a note to the manual
>  |> that "$ cat" should be used and explained what escape is and how
> 
>  |yes... "cat -v" (and control/V) are a good starting point.
> 
> -v is not portable (POSIX), but i'll mention it.  Be warned you
> are about to be credited for that.
> You know i can't give a normal user references as above, even
> though that would possibly work for many users that dig that deep
> into my thing, it wouldn't work for me regarding them.
> 
> And then, finally (note the european-and-beyond 9-1-1 is indeed
> 112 ^.^), i think taking over the example table from ncurses.faq
> into an installed document would be a real improvement.  It would
> definetely have saved you from this thread, for example.  What do
> you think of the attached patch?

It seems to make the distance between the paragraphs longer - perhaps
reworking it into an example-section (as is done shortly after, in the
file).
>
>  |> Thanks!  And ciao (and a merry Christmas, too),

no problem (report bugs)

-- 
Thomas E. Dickey <address@hidden>
http://invisible-island.net
ftp://invisible-island.net

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