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Diffstat (limited to 'doc/emacs/mark.texi')
| -rw-r--r-- | doc/emacs/mark.texi | 13 |
1 files changed, 12 insertions, 1 deletions
diff --git a/doc/emacs/mark.texi b/doc/emacs/mark.texi index 91c44d527b3..ad25ed6a8aa 100644 --- a/doc/emacs/mark.texi +++ b/doc/emacs/mark.texi @@ -291,12 +291,23 @@ instead signal an error if the mark is inactive. @cindex Delete Selection mode @cindex mode, Delete Selection @findex delete-selection-mode +@vindex delete-selection-temporary-region By default, text insertion occurs normally even if the mark is active---for example, typing @kbd{a} inserts the character @samp{a}, then deactivates the mark. Delete Selection mode, a minor mode, modifies this behavior: if you enable that mode, then inserting text while the mark is active causes the text in the region to be deleted -first. To toggle Delete Selection mode on or off, type @kbd{M-x +first. However, you can tune this behavior by customizing the +@code{delete-selection-temporary-region} option. Its default value is +@code{nil}, but you can set it to @code{t}, in which case only +temporarily-active regions will be replaced: those which are set by +dragging the mouse (@pxref{Setting Mark}) or by shift-selection +(@pxref{Shift Selection}), as well as by @kbd{C-u C-x C-x} when +Transient Mark Mode is disabled. You can further tune the behavior by +setting @code{delete-selection-temporary-region} to @code{selection}: +then temporary regions by @kbd{C-u C-x C-x} won't be replaced, only +the ones activated by dragging the mouse or shift-selection. To +toggle Delete Selection mode on or off, type @kbd{M-x delete-selection-mode}. @node Mark Ring |