notmuch/test/test-lib.el

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;; test-lib.el --- auxiliary stuff for Notmuch Emacs tests.
;;
;; Copyright © Carl Worth
;; Copyright © David Edmondson
;;
;; This file is part of Notmuch test suit.
;;
;; Notmuch is free software: you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.
;;
;; Notmuch is distributed in the hope that it will be useful, but
;; WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
;; General Public License for more details.
;;
;; You should have received a copy of the GNU General Public License
;; along with Notmuch. If not, see <http://www.gnu.org/licenses/>.
;;
;; Authors: Dmitry Kurochkin <dmitry.kurochkin@gmail.com>
(defun visible-buffer-string ()
"Same as `buffer-string', but excludes invisible text."
(visible-buffer-substring (point-min) (point-max)))
(defun visible-buffer-substring (start end)
"Same as `buffer-substring', but excludes invisible text."
(let (str)
(while (< start end)
(let ((next-pos (next-char-property-change start end)))
(when (not (invisible-p start))
(setq str (concat str (buffer-substring start next-pos))))
(setq start next-pos)))
str))