Variable: whitespace-space-regexp

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

Value

"\\( +\\)"

Documentation

Regexp to match SPACE characters that should be visualized.

The SPACE characters are highlighted using the whitespace-space face. By default only ASCII SPACE character is visualized, but if you are typing in some non-Latin language, there may be other characters besides " " that should be considered SPACE.

Here are some examples:

   "\\\\(^ +\\\\)" visualize only leading SPACEs.
   "\\\\( +$\\\\)" visualize only trailing SPACEs.
   "\\\\(^ +\\\\| +$\\\\)" visualize leading and/or trailing SPACEs.
   "\\t\\\\( +\\\\)\\t" visualize only SPACEs between TABs.

NOTE: Always enclose the elements to highlight in \\(...\\).
      Use exactly one pair of enclosing \\( and \\).

This variable is used when whitespace-style includes spaces.

Source Code

;; Defined in /usr/src/emacs/lisp/whitespace.el.gz
(defcustom whitespace-space-regexp "\\( +\\)"
  "Regexp to match SPACE characters that should be visualized.

The SPACE characters are highlighted using the `whitespace-space' face.
By default only ASCII SPACE character is visualized, but if you
are typing in some non-Latin language, there may be other
characters besides \" \" that should be considered SPACE.

Here are some examples:

   \"\\\\(^ +\\\\)\"		visualize only leading SPACEs.
   \"\\\\( +$\\\\)\"		visualize only trailing SPACEs.
   \"\\\\(^ +\\\\| +$\\\\)\"	\
visualize leading and/or trailing SPACEs.
   \"\\t\\\\( +\\\\)\\t\"	visualize only SPACEs between TABs.

NOTE: Always enclose the elements to highlight in \\\\(...\\\\).
      Use exactly one pair of enclosing \\\\( and \\\\).

This variable is used when `whitespace-style' includes `spaces'."
  :type '(regexp :tag "SPACE Chars")
  :group 'whitespace)