Function: rng-blank-p
rng-blank-p is a byte-compiled function defined in rng-util.el.gz.
Signature
(rng-blank-p STR)
Source Code
;; Defined in /usr/src/emacs/lisp/nxml/rng-util.el.gz
(defun rng-blank-p (str) (string-match "\\`[ \t\n\r]*\\'" str))