GNU bug report logs - #75784
Typo "unreadeable" in print.c; was exposed to Lisp

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Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):

From: Pip Cet <pipcet <at> protonmail.com>
To: bug-gnu-emacs <at> gnu.org
Subject: Typo "unreadeable" in print.c; was exposed to Lisp
Date: Thu, 23 Jan 2025 12:21:32 +0000

print.c contains the following code:

static void
print_create_variable_mapping (void)
{
  Lisp_Object total[] = {
    list3 (intern ("length"), intern ("print-length"), Qnil),
    list3 (intern ("level"), intern ("print-level"), Qnil),
    list3 (intern ("circle"), intern ("print-circle"), Qnil),
    list3 (intern ("quoted"), intern ("print-quoted"), Qt),
    list3 (intern ("escape-newlines"), intern ("print-escape-newlines"), Qnil),
    list3 (intern ("escape-control-characters"),
	   intern ("print-escape-control-characters"), Qnil),
    list3 (intern ("escape-nonascii"), intern ("print-escape-nonascii"), Qnil),
    list3 (intern ("escape-multibyte"),
	   intern ("print-escape-multibyte"), Qnil),
    list3 (intern ("charset-text-property"),
	   intern ("print-charset-text-property"), Qnil),
    list3 (intern ("unreadeable-function"),
	   intern ("print-unreadable-function"), Qnil),
    list3 (intern ("gensym"), intern ("print-gensym"), Qnil),
    list3 (intern ("continuous-numbering"),
	   intern ("print-continuous-numbering"), Qnil),
    list3 (intern ("number-table"), intern ("print-number-table"), Qnil),
    list3 (intern ("float-format"), intern ("float-output-format"), Qnil),
    list3 (intern ("integers-as-characters"),
	   intern ("print-integers-as-characters"), Qnil),
  };

  Vprint_variable_mapping = CALLMANY (Flist, total);
}

Unfortunately, "unreadable" is spelled in two different ways: the first
instance is "unreadeable-function", with an "e", the second is
"print-unreadable-function", without the "e".

I think this was a simple typo at one point, but it was exposed as part
of the Lisp API and people may have used it.  OTOH, it wasn't introduced
too long ago, so we might want to fix it and see whether anyone
complains.

The documentation also needs to be updated, either to change it to the
correct spelling or to mention the typo so Lisp hackers know this is
another kdb-macro-redisplay.

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