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(emacs)Registers

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Registers
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   Emacs "registers" are compartments where you can save text,
rectangles, positions, and other things for later use.  Once you save
text or a rectangle in a register, you can copy it into the buffer
once, or many times; you can move point to a position saved in a
register once, or many times.

   Each register has a name, which consists of a single character.  A
register can store a piece of text, a rectangle, a position, a window
configuration, or a file name, but only one thing at any given time.
Whatever you store in a register remains there until you store
something else in that register.  To see what a register R contains,
use `M-x view-register'.

`M-x view-register <RET> R'
     Display a description of what register R contains.

Position

RegPos. Saving positions in registers.

Text

RegText. Saving text in registers.

Rectangle

RegRect. Saving rectangles in registers.

Configurations

RegConfig. Saving window configurations in registers.

Files

RegFiles. File names in registers.

Numbers

RegNumbers. Numbers in registers.

Bookmarks

Bookmarks are like registers, but persistent.