X-Git-Url: http://git.kpe.io/?p=kmrcl.git;a=blobdiff_plain;f=io.lisp;h=d4c50ef6b28a5e93c960558ffc18fbbcf3b4fc55;hp=47fc178f5ed914712b8186a52db7c40531b0c2db;hb=526eef1b59e071cbb4ecd35f73a14c1a3f8e32b6;hpb=f02806a9c747318814e3b46520d2ceebd6031488

diff --git a/io.lisp b/io.lisp
index 47fc178..d4c50ef 100644
--- a/io.lisp
+++ b/io.lisp
@@ -7,9 +7,9 @@
 ;;;; Programmer:    Kevin M. Rosenberg
 ;;;; Date Started:  Apr 2000
 ;;;;
-;;;; $Id: io.lisp,v 1.15 2003/07/31 17:03:37 kevin Exp $
+;;;; $Id$
 ;;;;
-;;;; This file, part of KMRCL, is Copyright (c) 2002 by Kevin M. Rosenberg
+;;;; This file, part of KMRCL, is Copyright (c) 2002-2003 by Kevin M. Rosenberg
 ;;;;
 ;;;; KMRCL users are granted the rights to distribute and use this software
 ;;;; as governed by the terms of the Lisp Lesser GNU Public License
@@ -21,12 +21,13 @@
 (defun print-file-contents (file &optional (strm *standard-output*))
   "Opens a reads a file. Returns the contents as a single string"
   (when (probe-file file)
-    (with-open-file (in file :direction :input)
-      (let ((eof (gensym)))		    
-	(do ((line (read-line in nil eof) 
-		   (read-line in nil eof)))
-	    ((eq line eof))
-	  (format strm "~A~%" line))))))
+    (let ((eof (cons 'eof nil)))
+      (with-open-file (in file :direction :input)
+        (do ((line (read-line in nil eof) 
+                   (read-line in nil eof)))
+            ((eq line eof))
+          (write-string line strm)
+          (write-char #\newline strm))))))
 
 (defun read-file-to-string (file)
   "Opens a reads a file. Returns the contents as a single string"
@@ -190,3 +191,25 @@
   (when (probe-file #p"/dev/null")
     (open-device-stream #p"/dev/null" :output))  
   )
+
+
+(defun directory-tree (filename)
+  "Returns a tree of pathnames for sub-directories of a directory"
+  (let* ((root (canonicalize-directory-name filename))
+	 (subdirs (loop for path in (directory
+				     (make-pathname :name :wild
+						    :type :wild
+						    :defaults root))
+			when (probe-directory path)
+			collect (canonicalize-directory-name path))))
+    (when (find nil subdirs)
+      (error "~A" subdirs))
+    (when (null root)
+      (error "~A" root))
+    (if subdirs
+	(cons root (mapcar #'directory-tree subdirs))
+	(if (probe-directory root)
+	    (list root)
+	    (error "root not directory ~A" root)))))
+
+