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core-emacs-backports.el
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;;; core-emacs-backports.el --- Spacemacs Core File
;;
;; Copyright (c) 2012-2014 Sylvain Benner
;; Copyright (c) 2014-2015 Sylvain Benner & Contributors
;;
;; Author: Sylvain Benner <sylvain.benner@gmail.com>
;; URL: https://github.com/syl20bnr/spacemacs
;;
;; This file is not part of GNU Emacs.
;;
;;; License: GPLv3
(unless (featurep 'subr-x)
;; `subr-x' function for Emacs 24.3 and below
(defsubst string-join (strings &optional separator)
"Join all STRINGS using SEPARATOR."
(mapconcat 'identity strings separator))
(defsubst string-trim-left (string)
"Remove leading whitespace from STRING."
(if (string-match "\\`[ \t\n\r]+" string)
(replace-match "" t t string)
string))
(defsubst string-trim-right (string)
"Remove trailing whitespace from STRING."
(if (string-match "[ \t\n\r]+\\'" string)
(replace-match "" t t string)
string))
(defsubst string-trim (string)
"Remove leading and trailing whitespace from STRING."
(string-trim-left (string-trim-right string)))
(defsubst string-empty-p (string)
"Check whether STRING is empty."
(string= string "")))
(provide 'core-emacs-backports)