From 4f4639a927baa16071d77d08b0b66330990c0fa8 Mon Sep 17 00:00:00 2001
From: erana <jceuppen@vub.ac.be>
Date: Wed, 18 Jan 2012 03:13:39 +0900
Subject: [PATCH] SPAN - client get command - 3

---
 scsh/SPAN/SPAN-util.scm | 55 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100644 scsh/SPAN/SPAN-util.scm

diff --git a/scsh/SPAN/SPAN-util.scm b/scsh/SPAN/SPAN-util.scm
new file mode 100644
index 0000000..576ad65
--- /dev/null
+++ b/scsh/SPAN/SPAN-util.scm
@@ -0,0 +1,55 @@
+;;; SPAN-util.scm - Scheme Perl Archive Network utilities
+;;;
+;;; Copyright (c) 2012 Johan Ceuppens
+;;;
+;;; All rights reserved.
+;;;
+;;; Redistribution and use in source and binary forms, with or without
+;;; modification, are permitted provided that the following conditions
+;;; are met:
+;;; 1. Redistributions of source code must retain the above copyright
+;;;    notice, this list of conditions and the following disclaimer.
+;;; 2. Redistributions in binary form must reproduce the above copyright
+;;;    notice, this list of conditions and the following disclaimer in the
+;;;    documentation and/or other materials provided with the distribution.
+;;; 3. The name of the authors may not be used to endorse or promote products
+;;;    derived from this software without specific prior written permission.
+;;;
+;;; THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR
+;;; IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+;;; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+;;; IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+;;; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+;;; NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+;;; DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+;;; THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+;;; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+;;; THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+(define (url-bite-off url)
+  (let ((s "")
+        (do ((i 0 (+ i 1)))
+            ((>= i (string-length url))
+             ;;(if (= (string-ref url i) #\/)
+             ;;    (set!
+             s)
+          (set! s (string-append s (string (string-ref url i)))))
+        (if (or (eq? s "http://")(eq? s "ftp://"))
+            (set! s "")))))
+
+(define (SPAN-shell-spawn mirror)
+  (do ((s (read)(read)))
+      ((null? s)0)
+    (cond ((symbol? s)
+           (cond ((string<=? (symbol->string s)(string #\return))
+                  0)
+                 ((string=? "h" (symbol->string s))
+                  (display "Commands : get ")
+                  0)
+                 ((string<=? "get" (symbol->string s))
+                  (display "enter package to fetch : ")
+                  (SPAN-ask-server (string-append "get " (symbol->string (read)))
+                                   (url-bite-off mirror) 6969))
+                 ))
+          ))
+  (display "Signing off."))
\ No newline at end of file