Eww should support conveniently avoiding using the same buffer even when
not in an eww buffer (M-x eww or browse-url).  Currently, in an eww
buffer, ‘eww-open-in-new-buffer’ opens the link under point in a new
buffer, and ‘eww’ reuses the buffer.  When running ‘eww’ outside an eww
buffer, it reuses the ‘*eww*’ buffer.  Attached is a patch where by
default this behaviour is retained, but when a new custom,
‘eww-reuse-buffer’ is truthy (defaults to nil), Eww uses a new buffer
(obtained via ‘generate-new-buffer’) instead, unless the current buffer
is an eww buffer.  The navigation behaviour in eww buffers is retained.

I have manually tested the general use of EWW with this patch applied.
But I haven’t found a test suite for EWW; if I missed it, I can run it,
or any other suggested testing.

In case the patch is good enough to apply as it is, I have my copyright
stuff sorted already.

All the best,
    -gk.


In GNU Emacs 27.0.50 (build 1, x86_64-pc-linux-gnu, X toolkit, Xaw3d scroll bars)
 of 2019-02-04 built on alpha
Repository revision: ef17247fe9cab2d59e470daad24314c868248b0a
Repository branch: master
Windowing system distributor 'The X.Org Foundation', version 11.0.12003000
System Description: Debian GNU/Linux buster/sid

Recent messages:
Mark set [3 times]
Mark saved where search started
Mark set
Auto-saving...done
eww-reuse-buffer
Quit [5 times]
eww-reuse-buffer
Saving file /home/g/co/External/emacs/lisp/net/eww.el...
Wrote /home/g/co/External/emacs/lisp/net/eww.el
Finding changes in /home/g/co/External/emacs/lisp/net/eww.el...done
Quit
Configured using:
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Memory information:
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