🚀 go-pugleaf

Dear GNU Emacs,

Any help to fix either outline-mode's show-children or my
understanding of what it should do would be appreciated.  An email
reply would be appreciated.  Thanks.  And thanks for GNU Emacs.

	>Ross

@chapter

I'm using GNU Emacs 18.55.7.

Outline-mode's show-children (C-c C-i) does not work the way I
thought it should work.

Here I'm using the outline-regexp described in the manual (Sixth
Edition, Version 18, March 1987):

;;; Local Variables: ***
;;; mode:outline ***
;;; outline-regexp:"@chap\\|@\\(sub\\)*section" ***
;;; End: ***

If I hide the sections or subsections, C-c C-i will not show them,
but C-u 3 C-c C-i will.

@section
1
@subsection
1.1
@subsection
1.2
@section
2
@subsection
2.1
@subsection
2.1

In this example the lengths of the matching regular expressions for
the first three levels of the outline are 5, 8 and 11.  In outline
mode in this example, the outline-level function will return one of
these values since according to C-h f outline-level

outline-level:
Return the depth to which a statement is nested in the outline.
Point must be at the beginning of a header line.
This is actually the length of whatever outline-regexp matches.

However, show-children is looking for headings only one level deeper
than the current heading unless an optional argument is given.

In the file in which I found this behavior, I am using the regexp:

"C\\*\\*\\*\\*\\|C\\*\\*   \\|C\\*    +\\([0-9]+\\.\\)*[0-9]"