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bug#35536: 27.0.50; Expose buffer's marker list to Elisp

From: Drew Adams
Subject: bug#35536: 27.0.50; Expose buffer's marker list to Elisp
Date: Fri, 3 May 2019 09:38:02 -0700 (PDT)

> When asked for a list of markers between BEG and END, it makes sense to
> me to return a list which ascends from BEG to END.
IOW, in buffer-position order.

> If it really matters, we could either return the
> order of BUF_MARKERS unchanged,

Unchanged from what?

> or accept an additional argument which tells the
> function how to sort.

Have not really been following this thread, and
not weighing in on whether such a function is
needed or whether users need access to markers
created by C.

But as for the order of such a list: It's trivial
for users (any Lisp code) to sort by buffer position
or anything else, so why would the default order
be by buffer position?

What's _not_ available to users or Lisp code, I
think, is the order of marker creation or even the
order of last setting.  I'd think that
marker-creation order (either direction) would be
a better default sort order for this, no?

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