[Emacs-diffs] emacs-26 9a53b6d: Say how to override a primitive interactive spec

[Karl Fogel]

branch: emacs-26
commit 9a53b6d4260bde138117be385d5f626122f49904
Author: Karl Fogel <address@hidden>
Commit: Karl Fogel <address@hidden>

    Say how to override a primitive interactive spec
    
    * doc/lispref/internals.texi (Writing Emacs Primitives): Mention that
      the `interactive-form' property can be used to override a primitive
      interactive specification, and refer to the detailed documentation
      for setting that property.
    
    From this thread on Emacs Devel:
    
      https://lists.gnu.org/archive/html/emacs-devel/2018-03/msg00923.html
      From: Eli Zaretskii
      To: Karl Fogel
      CC: Juri Linkov, Emacs Devel
      Subject: Re: [Emacs-diffs] \
               master b88e7c8: Make transpose-regions interactive (Bug#30343)
      Date: Thu, 29 Mar 2018 14:38:15 +0300
      Message-Id: <address@hidden>
---
 doc/lispref/internals.texi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/doc/lispref/internals.texi b/doc/lispref/internals.texi
index e604335..2533327 100644
--- a/doc/lispref/internals.texi
+++ b/doc/lispref/internals.texi
@@ -743,6 +743,11 @@ DEFUN ("foo", Ffoo, Sfoo, 0, UNEVALLED, 0
 @end group
 @end example
 
+If you wish to override a primitive interactive specification, just
+set the @code{interactive-form} property of the primitive function's
+symbol (@pxref{Using Interactive}).  There is no need to edit C code
+and recompile Emacs.
+
 @item doc
 This is the documentation string.  It uses C comment syntax rather
 than C string syntax because comment syntax requires nothing special