Commit 7cbbcaa0 authored by Xue Fuqiao's avatar Xue Fuqiao
Browse files

* doc/lispref/markers.texi (The Region): Add/move indexes.

parent 8e5c7e6f
2013-08-15 Xue Fuqiao <>
* markers.texi (The Region): Add/move indexes.
2013-08-13 Lars Magne Ingebrigtsen <>
* display.texi (ImageMagick Images): Mention :content-type and
......@@ -387,7 +387,6 @@ This is another name for @code{set-marker}.
@section The Mark
@cindex mark, the
@c @cindex the mark?
@cindex mark ring
Each buffer has a special marker, which is designated @dfn{the
mark}. When a buffer is newly created, this marker exists but does
......@@ -426,6 +425,7 @@ the mark is active. This is the main motivation for using Transient
Mark mode. (Another is that this enables highlighting of the region
when the mark is active. @xref{Display}.)
@cindex mark ring
In addition to the mark, each buffer has a @dfn{mark ring} which is a
list of markers containing previous values of the mark. When editing
commands change the mark, they should normally save the old value of the
......@@ -671,6 +671,7 @@ integer). This is the position of either point or the mark, whichever is
@end defun
@c FIXME: Mention it in tips.texi?
Instead of using @code{region-beginning} and @code{region-end}, a
command designed to operate on a region should normally use
@code{interactive} with the @samp{r} specification to find the
......@@ -683,6 +684,8 @@ mark is active, and there is a valid region in the buffer. This
function is intended to be used by commands that operate on the
region, instead of on text near point, when the mark is active.
@cindex empty region
@vindex use-empty-active-region
A region is valid if it has a non-zero size, or if the user option
@code{use-empty-active-region} is non-@code{nil} (by default, it is
@code{nil}). The function @code{region-active-p} is similar to
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