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Clarify the doc of eval-expression-print-format

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* lisp/simple.el (eval-expression-print-format): Doc
clarification (bug#19114).

(cherry picked from commit cd193a871f)
This commit is contained in:
Lars Ingebrigtsen 2016-04-30 17:39:05 +02:00
parent 8f1e784f19
commit ed8474e6ff
1 changed files with 5 additions and 4 deletions
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9
lisp/simple.el
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@ -1418,10 +1418,11 @@ If nil, don't change the value of `debug-on-error'."
:version "21.1")
(defun eval-expression-print-format (value)
"Format VALUE as a result of evaluated expression.
Return a formatted string which is displayed in the echo area
in addition to the value printed by prin1 in functions which
display the result of expression evaluation."
"If VALUE in an integer, return a specially formatted string.
This string will typically look like \" (#o1, #x1, ?\\C-a)\".
If VALUE is not an integer, nil is returned.
This function is used by functions like `prin1' that display the
result of expression evaluation."
(if (and (integerp value)
(or (eq standard-output t)
(zerop (prefix-numeric-value current-prefix-arg))))