bug#70217: [PATCH] Add substring-partial-completion style

[Eli Zaretskii <eliz@gnu.org>]

> From: Spencer Baugh <sbaugh@janestreet.com>
> Cc: 70217@debbugs.gnu.org,  monnier@iro.umontreal.ca
> Date: Sun, 26 May 2024 09:02:13 -0400
> 
> >> +For example: when the string being completed is \"b/c\",
> >> +\"bbb/ccc\" is a valid completion according to
> >> +partial-completion.  If this is nil, then \"aaa/bbb/ccc\" and
> >> +\"aaabbb/ccc\" are also valid completions."
> >
> > Isn't this not the best example?  "b/c" does NOT match "bbb/ccc" at
> > the beginning.  Or what am I missing?
> 
> b/c does match bbb/ccc at the beginning, according to the
> partial-completion rules.  Explained as a glob, partial-completion turns
> b/c into b*c which then can expand to bbb/ccc.

Sorry, I don't understand what you are saying and how it addresses my
concern.  To me, this example contradicts what was explained in the
documentation earlier, so we must clarify this, whether in the example
or in the preceding descriptions.  Please re-read how you described
the effect of this option, and go from there.