;;;; Programmer: Kevin M. Rosenberg
;;;; Date Started: Apr 2000
;;;;
-;;;; $Id: strings.lisp,v 1.3 2002/12/14 02:36:42 kevin Exp $
+;;;; $Id: strings.lisp,v 1.4 2002/12/26 11:57:07 kevin Exp $
;;;;
;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
;;;;
(when (stringp str)
(null (find-if #'not-whitespace? str))))
+#+ignore
+(defun string-replace-chars-strings (str repl-alist)
+ "Replace all instances of a chars with a string. repl-alist is an assoc
+list of characters and replacement strings."
+ (let* ((orig-len (length str))
+ (new-len orign-len))
+ (declare (fixnum orig-len new-len))
+ (dotimes (i orign-len)
+ (declare (fixnum i))
+ (let ((c (schar i str)))
+ )))
+ str)
+
+(defun escape-xml-string (string)
+ "Escape invalid XML characters"
+ (string-replace-char-string
+ (string-replace-char-string string #\& "&")
+ #\< "<"))
+
+(defun string-replace-char-string (string repl-char repl-str)
+ "Replace all occurances of repl-char with repl-str"
+ (declare (simple-string string))
+ (let ((count (count repl-char string)))
+ (declare (fixnum count))
+ (if (zerop count)
+ string
+ (locally (declare (optimize (speed 3) (safety 0)))
+ (let* ((old-length (length string))
+ (repl-length (length repl-str))
+ (new-string (make-string (the fixnum
+ (+ old-length
+ (the fixnum
+ (* count
+ (the fixnum (1- repl-length)))))))))
+ (declare (fixnum old-length repl-length)
+ (simple-string new-string))
+ (let ((newpos 0))
+ (declare (fixnum newpos))
+ (dotimes (oldpos (length string))
+ (declare (fixnum oldpos))
+ (if (char= repl-char (schar string oldpos))
+ (dotimes (repl-pos repl-length)
+ (declare (fixnumm repl-pos))
+ (setf (schar new-string newpos) (schar repl-str repl-pos))
+ (incf newpos))
+ (progn
+ (setf (schar new-string newpos) (schar string oldpos))
+ (incf newpos)))))
+ new-string)))))
+
+