bug#27646: Bug: Emacs Lisp Indentation

[Alexander Shukaev]

On 11/29/17 3:26 AM, Noam Postavsky wrote:
> close 27646
> quit
>
> npostavs@users.sourceforge.net writes:
>
> > That would certainly be a bug, but I can't reproduce this, when I run
> > indent-region or indent-sexp on that code I get the correct indentation:
> >
> > (defconst init-font-lock-keywords
> >    `(,@(let ((constant-pattern "\\(?:\\sw\\|\\s_\\)+")
> >              (keywords         nil))
> >          (dolist (symbol '(init-a
> >                            init-b
>
> Closing, since there's been no followup.

This time I realized what's happening.  Put

(dolist (symbol '(ignore-errors
                  xxx
                  yyy)))

to the "*scratch*" buffer and indent to observe the following result

(dolist (symbol '(ignore-errors
                   xxx
                   yyy)))

The reason why this happens is because `ignore-errors' is a macro that has

(declare (indent defun))

Any other macro with the same declaration whose innocent symbol is used 
as the first element in a list would reproduce the above indentation 
bug.  Backquote is also affected.