Variable: whitespace-trailing-regexp
whitespace-trailing-regexp is a customizable variable defined in
whitespace.el.gz.
Value
"\\([ ]+\\)$"
Documentation
Specify trailing characters regexp.
There may be other characters besides:
" " "\\t" "\\u00A0"
that should be considered blank.
NOTE: Enclose always by "\\\\(" and "\\\\)$" the elements to highlight.
Use exactly one pair of enclosing elements above.
Used when whitespace-style includes trailing.
Source Code
;; Defined in /usr/src/emacs/lisp/whitespace.el.gz
(defcustom whitespace-trailing-regexp
"\\([\t \u00A0]+\\)$"
"Specify trailing characters regexp.
There may be other characters besides:
\" \" \"\\t\" \"\\u00A0\"
that should be considered blank.
NOTE: Enclose always by \"\\\\(\" and \"\\\\)$\" the elements to highlight.
Use exactly one pair of enclosing elements above.
Used when `whitespace-style' includes `trailing'."
:type '(regexp :tag "Trailing Chars")
:group 'whitespace)