Function: eshell-input-filter-default
eshell-input-filter-default is a byte-compiled function defined in
em-hist.el.gz.
Signature
(eshell-input-filter-default INPUT)
Documentation
Do not add blank input to input history.
Returns non-nil if INPUT is blank.
Probably introduced at or before Emacs version 26.1.
Source Code
;; Defined in /usr/src/emacs/lisp/eshell/em-hist.el.gz
;;; Functions:
(defun eshell-input-filter-default (input)
"Do not add blank input to input history.
Returns non-nil if INPUT is blank."
(not (string-blank-p input)))