Commit 9ac618de authored by Richard M. Stallman's avatar Richard M. Stallman
Browse files

(Outline Format): Say to set outline-regexp

and outline-level with major modes and file local variables.
parent 58c8f915
2006-12-06 Richard Stallman <rms@gnu.org>
* text.texi (Outline Format): Say to set outline-regexp
and outline-level with major modes and file local variables.
2006-12-05 Micha,Ak(Bl Cadilhac <michael.cadilhac@lrde.org>
* anti.texi (Antinews): Mention the alternative to
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......@@ -1039,29 +1039,33 @@ collectively an @dfn{entry}. A heading line together with all following
deeper heading lines and their body lines is called a @dfn{subtree}.
@vindex outline-regexp
You can customize the criterion for distinguishing heading lines
by setting the variable @code{outline-regexp}. Any line whose
beginning has a match for this regexp is considered a heading line.
Matches that start within a line (not at the left margin) do not count.
The length of the matching text determines the level of the heading;
longer matches make a more deeply nested level. Thus, for example,
if a text formatter has commands @samp{@@chapter}, @samp{@@section}
and @samp{@@subsection} to divide the document into chapters and
sections, you could make those lines count as heading lines by
setting @code{outline-regexp} to @samp{"@@chap\\|@@\\(sub\\)*section"}.
Note the trick: the two words @samp{chapter} and @samp{section} are equally
You can customize the criterion for distinguishing heading lines by
setting the variable @code{outline-regexp}. (The recommended ways to
do this are in a major mode function or with a file local variable.)
Any line whose beginning has a match for this regexp is considered a
heading line. Matches that start within a line (not at the left
margin) do not count.
The length of the matching text determines the level of the heading;
longer matches make a more deeply nested level. Thus, for example, if
a text formatter has commands @samp{@@chapter}, @samp{@@section} and
@samp{@@subsection} to divide the document into chapters and sections,
you could make those lines count as heading lines by setting
@code{outline-regexp} to @samp{"@@chap\\|@@\\(sub\\)*section"}. Note
the trick: the two words @samp{chapter} and @samp{section} are equally
long, but by defining the regexp to match only @samp{chap} we ensure
that the length of the text matched on a chapter heading is shorter,
so that Outline mode will know that sections are contained in chapters.
This works as long as no other command starts with @samp{@@chap}.
so that Outline mode will know that sections are contained in
chapters. This works as long as no other command starts with
@samp{@@chap}.
@vindex outline-level
You can change the rule for calculating the level of a heading line
by setting the variable @code{outline-level}. The value of
@code{outline-level} should be a function that takes no arguments and
returns the level of the current heading. Some major modes such as C,
Nroff, and Emacs Lisp mode set this variable and @code{outline-regexp}
in order to work with Outline minor mode.
You can explicitly specify a rule for calculating the level of a
heading line by setting the variable @code{outline-level}. The value
of @code{outline-level} should be a function that takes no arguments
and returns the level of the current heading. The recommended ways to
set this variable are in a major mode command or with a file local
variable.
@node Outline Motion
@subsection Outline Motion Commands
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