GNU bug report logs - #6556
html-mode does not align to prev non-empty line when indenting

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

From: Lennart Borgman <lennart.borgman <at> gmail.com>
To: Emacs Bugs <bug-gnu-emacs <at> gnu.org>
Subject: html-mode does not align to prev non-empty line when indenting
Date: Sat, 3 Jul 2010 02:14:23 +0200

In a buffer like this

   <p>
      row 1
         row 2
     row 3

the "row 3" gets indented like above. I think it instead should be
aligned with row2. (I need this for mumamo.)

The comment in sgml-calculate-indent seems to say that this is the
intention, but the code is maybe unfinished, line 1483:

	    (context
	     ;; If possible, align on the previous non-empty text line.
	     ;; Otherwise, do a more serious parsing to find the
	     ;; tag(s) relative to which we should be indenting.
	     (if (and (not unclosed) (skip-chars-backward " \t")
		      (< (skip-chars-backward " \t\n") 0)
		      (back-to-indentation)
		      (> (point) (cdr lcon)))
		 nil
	       (goto-char here)
	       (nreverse (sgml-get-context (if unclosed nil 'empty)))))

I do not know how it is supposed to work, but I notice that
(back-to-indentation) is not supposed to return anything special so
the argument to if may fail (and this seems to happen). Writing that
part as


                    (progn
		      (back-to-indentation)
		      (> (point) (cdr lcon))))


seems to work as expected.

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