Emacs/emacs/Rectangle-Registers
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13.3 Saving Rectangles in Registers
A register can contain a rectangle instead of linear text. See Rectangles, for basic information on how to specify a rectangle in the buffer.
C-x r r r
Copy the region-rectangle into register r
(copy-rectangle-to-register
). With prefix argument, delete it as
well.
C-x r i r
Insert the rectangle stored in register r
(if it contains a
rectangle) (insert-register
).
The C-x r i r
(insert-register
) command,
previously documented in Text Registers, inserts a rectangle
rather than a text string, if the register contains a rectangle.