Variable: whitespace-space-before-tab-regexp

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

Value

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

Documentation

Regexp to match SPACEs before TAB that should be visualized.

The SPACE characters are highlighted using the whitespace-space-before-tab face. This variable is 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+\\)"
  "Regexp to match SPACEs before TAB that should be visualized.

The SPACE characters are highlighted using the `whitespace-space-before-tab'
face.
This variable is used when `whitespace-style' includes
`space-before-tab', `space-before-tab::tab' or `space-before-tab::space'."
  :type '(regexp :tag "SPACEs Before TAB"))