X-Git-Url: http://git.kpe.io/?a=blobdiff_plain;ds=inline;f=strings.lisp;h=937f67039e45bbc9225ad25df9866ead8c479c22;hb=066d1f100407cebbf9b28ee9135d8538876e8c3f;hp=f382fe9221dc0e1b48433bcfc15c7fb51ee5a5fa;hpb=0d0bdfdfb15376444d09b8bbbbe4e7034f710dcf;p=kmrcl.git

diff --git a/strings.lisp b/strings.lisp
index f382fe9..937f670 100644
--- a/strings.lisp
+++ b/strings.lisp
@@ -7,7 +7,7 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Apr 2000
 ;;;;
-;;;; $Id: strings.lisp,v 1.25 2003/05/09 00:05:13 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
 ;;;;
@@ -86,8 +86,10 @@
   (let ((up nil) (down nil))
     (block skip
       (loop for char of-type character across str do
-	    (cond ((upper-case-p char) (if down (return-from skip str) (setf up t)))
-		  ((lower-case-p char) (if up   (return-from skip str) (setf down t)))))
+	    (cond ((upper-case-p char)
+		   (if down (return-from skip str) (setf up t)))
+		  ((lower-case-p char)
+		   (if up   (return-from skip str) (setf down t)))))
       (if up (string-downcase str) (string-upcase str)))))
 
 (defun add-sql-quotes (s)
@@ -251,3 +253,24 @@ list of characters and replacement strings."
       (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))