+
+(defun ensure-string (v)
+ (typecase v
+ (string v)
+ (character (string v))
+ (symbol (symbol-name v))
+ (otherwise (write-to-string v))))
+
+(defun string-right-trim-one-char (char str)
+ (declare (simple-string str))
+ (let* ((len (length str))
+ (last (1- len)))
+ (declare (fixnum len last))
+ (if (char= char (schar str last))
+ (subseq str 0 last)
+ str)))
+
+
+(defun string-strip-ending (str endings)
+ (if (stringp endings)
+ (setq endings (list endings)))
+ (let ((len (length str)))
+ (dolist (ending endings str)
+ (when (and (>= len (length ending))
+ (string-equal ending
+ (subseq str (- len
+ (length ending)))))
+ (return-from string-strip-ending
+ (subseq str 0 (- len (length ending))))))))
+