;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Apr 2000
;;;;
-;;;; $Id: package.lisp,v 1.30 2003/05/09 09:35:04 kevin Exp $
+;;;; $Id: package.lisp,v 1.31 2003/05/14 21:31:42 kevin Exp $
;;;;
;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
#:position-char
#:delimited-string-to-list
#:list-to-delimited-string
+ #:prefixed-fixnum-string
+
#:flatten
#:indent-spaces
;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Apr 2000
;;;;
-;;;; $Id: strings.lisp,v 1.26 2003/05/11 21:51:44 kevin Exp $
+;;;; $Id: strings.lisp,v 1.27 2003/05/14 21:31:42 kevin Exp $
;;;;
;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
(write-string elem strm)
(unless (and last-elem last-list)
(write-string separator strm)))))
+
+(defun prefixed-fixnum-string (num pchar len)
+ "Outputs a string of LEN chars with the initial character being
+PCHAR. Leading zeros are printed."
+ (declare (optimize (speed 3) (safety 0) (space 0))
+ (type fixnum v len))
+ (let ((zero-code (char-code #\0))
+ (result (make-string len :initial-element #\0))
+ (pos (1- len)))
+ (declare (fixnum zero-code pos)
+ (simple-string result))
+ (do* ((val num (floor (/ val 10)))
+ (mod (nth-value 1 (floor val 10))
+ (nth-value 1 (floor val 10))))
+ ((or (zerop val) (minusp pos)))
+ (declare (fixnum val mod))
+ (setf (schar result pos) (code-char (+ zero-code mod)))
+ (decf pos))
+ (when pchar
+ (setf (schar result 0) pchar))
+ result))