Once more: "Do you wish to see all xxx possibilities?"

Once more: "Do you wish to see all xxx possibilities?"

[Andrej Borsenkow]

I still do not understand, when it is printed. Looking in Zle/compresult.c:

    /* Maybe we have to ask if the user wants to see the list. */
    if ((!minfo.cur || !minfo.asked) &&
	((complistmax && listdat.nlist > complistmax) ||
	 (!complistmax && listdat.nlines >= lines))) {

It means, that it should ask if either complistmax is set (value of
$compconfig[list_max]?) or number of lines exceeds $LINES. It seems, that Zsh
sometimes gets incorrect count in listdat.nlines. Consider:

zsh -f
itsrm2% autoload -U compinit; compinit -D
itsrm2% SELECTMIN=0
itsrm2% zmodload complist
itsrm2% bindkey -e
itsrm2% for i in {01..30}
do
touch
${i}xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
done

(the above may be wrapped)
itsrm2% echo $LINES
24
itsrm2% ls <TAB>
01xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
02xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
03xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
04xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
05xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
06xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
07xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
08xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
09xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
10xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
11xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
12xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
13xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
14xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
15xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
16xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
17xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
18xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
19xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
20xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
21xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
22xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
23xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
24xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
25xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
26xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
27xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
28xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
29xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
30xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
itsrm2% ls

That is, Zsh spits out the whole list even when it does not fit to screen. The
$LINES is correct.
itsrm2% stty -a
speed 9600 baud;
rows = 24; columns = 80; ypixels = 370; xpixels = 730;
...

/andrej

Re: Once more: "Do you wish to see all xxx possibilities?"

[Sven Wischnowsky]

Andrej Borsenkow wrote:

> I still do not understand, when it is printed. Looking in Zle/compresult.c:
> 
>     /* Maybe we have to ask if the user wants to see the list. */
>     if ((!minfo.cur || !minfo.asked) &&
> 	((complistmax && listdat.nlist > complistmax) ||
> 	 (!complistmax && listdat.nlines >= lines))) {
> 
> It means, that it should ask if either complistmax is set (value of
> $compconfig[list_max]?) or number of lines exceeds $LINES. It seems, that Zsh
> sometimes gets incorrect count in listdat.nlines. Consider:

Many years ago, documentation was invented:

  LISTMAX
     In the line editor, the number of filenames to list without asking
     first.  If set to zero, the shell asks only if the top of the
     listing would scroll off the screen.

Even though `filenames' is definitely the wrong word here, I think it
should be clear enough.

And that's what the test you quoted above does. `complistmax' is the
atoi() of the value of `$compconfig[list_max]'. So, we ask if either
that is non-zero and the number of matches is larger than that value
or if the value is zero and the number of lines needed for the list is 
larger that the screen height.

In other words: if you only want the list if it fits on the screen,
set `LISTMAX=0'.

Bye
 Sven


--
Sven Wischnowsky                         wischnow@informatik.hu-berlin.de