Variable: cua-auto-tabify-rectangles

cua-auto-tabify-rectangles is a customizable variable defined in cua-base.el.gz.

Value

1000

Documentation

If non-nil, automatically tabify after rectangle commands.

This basically means that tabify is applied to all lines that are modified by inserting or deleting a rectangle. If value is an integer, CUA will look for existing tabs in a region around the rectangle, and only do the conversion if any tabs are already present. The number specifies then number of characters before and after the region marked by the rectangle to search.

Source Code

;; Defined in /usr/src/emacs/lisp/emulation/cua-base.el.gz
(defcustom cua-auto-tabify-rectangles 1000
  "If non-nil, automatically tabify after rectangle commands.
This basically means that `tabify' is applied to all lines that
are modified by inserting or deleting a rectangle.  If value is
an integer, CUA will look for existing tabs in a region around
the rectangle, and only do the conversion if any tabs are already
present.  The number specifies then number of characters before
and after the region marked by the rectangle to search."
  :type '(choice (number :tag "Auto detect (limit)")
		 (const :tag "Disabled" nil)
		 (other :tag "Enabled" t)))