Re: [pcomplete.el (pcomplete-completions-at-point)] Why max?

[Tadeus Prastowo <tadeus.prastowo@unitn.it>]

Hi everyone,

Does John still maintain the pcomplete package?

--
Best regards,
Tadeus

On Sat, Mar 16, 2019 at 11:29 PM Tadeus Prastowo
<tadeus.prastowo@unitn.it> wrote:
>
> Hi John,
>
> I am using Emacs at commit 4633b0e and see a problem that can be
> solved ad-hoc by using `min' instead of `max' in the following code
> within function `pcomplete-completions-at-point' in file
> `lisp/pcomplete.el':
>
>            (beg (max (- (point) (length pcomplete-stub))
>                      (pcomplete-begin)))
>
> What do you think will break if `min' is used instead of `max' to
> repair the following problem seen using `emacs -Q' at the said commit?
>
> M-x shell
> cd /tmp
> mkdir AAAA\ BB\ CCCC
> cd AAAA\ BB<tab>
>
> Autocomplete fails because (pcomplete-begin) returns the position of
> the first letter A but (length pcomplete-stub) is the length of "AAAA
> BB", which gives the position of the second letter A.  The function
> `max', therefore, sets `beg' to the start of the second letter A.
> Consequently, file-name-completion will be asked to complete "AAA BB"
> instead of the correct one "AAAA BB".
>
> Thank you.
>
> --
> Best regards,
> Tadeus