Change argument order in EXTRACT-BINDINGS and EXTRACT-SINGLE-BINDING to

fit the one of the equivalent PLT procedure.

scheme/httpd/surflets/surflets.scm

@@ -102,15 +102,15 @@
 	(else 
 	 (error "No Content-length specified for POST data."))))
 
-(define (extract-bindings bindings key)
+(define (extract-bindings key bindings)
   (let ((key (if (symbol? key) (symbol->string key) key)))
     (map cdr
 	 (filter (lambda (binding) 
 		   (equal? (car binding) key))
 		 bindings))))
 
-(define (extract-single-binding bindings key)
+(define (extract-single-binding key bindings)
-  (let ((key-bindings (extract-bindings bindings key)))
+  (let ((key-bindings (extract-bindings key bindings)))
     (if (= 1 (length key-bindings))
 	(car key-bindings)
 	(error "extract-one-binding: more than one or zero bindings found"

scheme/httpd/surflets/web-server/root/surflets/add.scm

@@ -28,7 +28,7 @@
 	(let* ((bindings (form-query
 			  (http-url:search (request:url result))))
 	       (number (string->number 
-			(extract-single-binding bindings "number"))))
+			(extract-single-binding "number" bindings))))
 	  (if number
 	      number
 	      (get-number input-text "Please enter a valid number")))))

scheme/httpd/surflets/web-server/root/surflets/test.scm

@@ -12,15 +12,26 @@
 		    `(html (body (h1 "This is from servlet")
 				 (servlet-form
 				  ,new-url
+				  POST
 				  ,select
 				  ,(make-submit-button))
 				 (hr)
 				 (p (URL "/" "Return to main menu."))
 				 ))))))
-	(send-html/finish
+	(send-html/suspend
+	 (lambda (continue)
 	   `(html (body (h1 "Result")
+			,(format #f "~s" (get-bindings req)) (br)
+			(URL ,continue "show results again")
+			(hr)
+			(p (URL "test.scm" "Test again.") (br)
+			   (URL "/" "Return to main menu."))))))
+
+	(send-html/finish
+	 `(html (body (h1 "Result 2")
 		      ,(format #f "~s" (get-bindings req))
 		      (hr)
 		      (p (URL "test.scm" "Test again.") (br)
 			 (URL "/" "Return to main menu.")))))))
+
     ))