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Re: Was it once possible to expand capped print output by using ellipsis
Re: Was it once possible to expand capped print output by using ellipsis as button?
Wed, 15 Apr 2015 22:00:43 -0400
Gnus/5.13 (Gnus v5.13) Emacs/25.0.50 (gnu/linux)
> I have vivid memory of being able to interact with those ellipsis as
> buttons, which would then expand and reveal previously invisible forms.
I think your memory is right. The NEWS file for Emacs-21 says:
*** The commands to evaluate Lisp expressions, such as C-M-x in Lisp
modes, C-j in Lisp Interaction mode, and M-:, now bind the variables
print-level, print-length, and debug-on-error based on the new
customizable variables eval-expression-print-level,
eval-expression-print-length, and eval-expression-debug-on-error.
The default values for the first two of these variables are 12 and 4
respectively, which means that `eval-expression' now prints at most
the first 12 members of a list and at most 4 nesting levels deep (if
the list is longer or deeper than that, an ellipsis `...' is
<RET> or <mouse-2> on the printed text toggles between an abbreviated
printed representation and an unabbreviated one.
> If this was in fact a feature, that was pulled out of stock emacs
> I would find it very interesting to learn about the reason that forced
> such decision.
I don't think it's been removed. I've never used it, tho, so maybe it
doesn't work any more. If so, try M-x report-emacs-bug.