Variable: whitespace-space-before-tab-regexp

whitespace-space-before-tab-regexp is a customizable variable defined in whitespace.el.gz.

Value

"\\( +\\)\\(	+\\)"

Documentation

Specify SPACEs before TAB regexp.

Used when whitespace-style includes space-before-tab,
space-before-tab::tab or space-before-tab::space.

Source Code

;; Defined in /usr/src/emacs/lisp/whitespace.el.gz
(defcustom whitespace-space-before-tab-regexp "\\( +\\)\\(\t+\\)"
  "Specify SPACEs before TAB regexp.

Used when `whitespace-style' includes `space-before-tab',
`space-before-tab::tab' or  `space-before-tab::space'."
  :type '(regexp :tag "SPACEs Before TAB")
  :group 'whitespace)