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-rw-r--r--lisp/emacs-lisp/subr-x.el12
1 files changed, 12 insertions, 0 deletions
diff --git a/lisp/emacs-lisp/subr-x.el b/lisp/emacs-lisp/subr-x.el
index 07e47794134..41c3ff63ae4 100644
--- a/lisp/emacs-lisp/subr-x.el
+++ b/lisp/emacs-lisp/subr-x.el
@@ -73,6 +73,18 @@
"Check whether STRING is either empty or only whitespace."
(string-match-p "\\`[ \t\n\r]*\\'" string))
+(defsubst string-remove-prefix (prefix string)
+ "Remove PREFIX from STRING if present."
+ (if (string-prefix-p prefix string)
+ (substring string (length prefix))
+ string))
+
+(defsubst string-remove-suffix (suffix string)
+ "Remove SUFFIX from STRING if present."
+ (if (string-suffix-p suffix string)
+ (substring string 0 (- (length string) (length suffix)))
+ string))
+
(provide 'subr-x)
;;; subr-x.el ends here