;; -*- mode: common-lisp; package: tutorial -*-
;;
;; turorial.cl
;;
;; copyright (c) 1986-2000 Franz Inc, Berkeley, CA 
;;
;; This code is free software; you can redistribute it and/or
;; modify it under the terms of the version 2.1 of
;; the GNU Lesser General Public License as published by 
;; the Free Software Foundation; 
;;
;; This code is distributed in the hope that it will be useful,
;; but without any warranty; without even the implied warranty of
;; merchantability or fitness for a particular purpose.  See the GNU
;; Lesser General Public License for more details.
;;
;; Version 2.1 of the GNU Lesser General Public License is in the file 
;; license-lgpl.txt that was distributed with this file.
;; If it is not present, you can access it from
;; http://www.gnu.org/copyleft/lesser.txt (until superseded by a newer
;; version) or write to the Free Software Foundation, Inc., 59 Temple Place, 
;; Suite 330, Boston, MA  02111-1307  USA
;;
;;
;; $Id: tutorial.cl,v 1.4 2000/06/12 21:53:03 jkf Exp $

;; Description:
;;   iserver tutorial examples

;;- This code in this file obeys the Lisp Coding Standard found in
;;- http://www.franz.com/~jkf/coding_standards.html
;;-

(defpackage :tutorial 
  (:use :common-lisp :excl :net.aserve :net.html.generator))

(in-package :tutorial)


(publish :path "/hello"
	 :content-type "text/plain"
	 :function 
	 #'(lambda (req ent)
	     (with-http-response (req ent)
	       (with-http-body (req ent)
		 (princ "Hello World!" *html-stream*)))))
		 
(publish :path "/hello2"
	 :content-type "text/html"
	 :function 
	 #'(lambda (req ent)
	     (with-http-response (req ent)
	       (with-http-body (req ent)
		 (html 
		  (:html (:head (:title "Hello World Test"))
			 (:body 
			  ((:font :color "red") "Hello ")
			  ((:font :color "blue") "World!"))))))))



(publish :path "/hello-count"
	 :content-type "text/html"
	 :function
	 (let ((count 0))
	   #'(lambda (req ent)
	       (with-http-response (req ent)
		 (with-http-body (req ent)
		   (html
		    (:html
		     (:head (:title "Hello Counter"))
		     (:body 
		      ((:font :color (nth (random 5)
					  '("red" "blue" 
					    "green" "purple" "black")))
		       "Hello World had been called " 
		       (:princ (incf count)) 
		       " times")))))))))


(publish :path "/queryform"
	 :content-type "text/html"
	 :function
	 #'(lambda (req ent)
	     (let ((name (cdr (assoc "name" (request-query req) 
				     :test #'equal))))
	       (with-http-response (req ent)
		 (with-http-body (req ent)
		   (if* name
		      then ; form was filled out, just say it
			   (html (:html
				  (:head (:title "Hi to " (:princ-safe name)))
				  (:body "Your name is "
					 (:b (:princ-safe name)))))
		      else ; put up the form
			   (html (:html
				   (:head (:title "Tell me your name"))
				   (:body
				    ((:form :action "queryform")
				     "Your name is "
				     ((:input :type "text"
					      :name "name"
					      :maxlength "20"))))))))))))


(publish :path "/charcount"
	 :content-type "text/html"
	 :function
	 #'(lambda (req ent)
	     (let* ((body (get-request-body req))
		    (text (if* body
			       then (cdr (assoc "quotation"
				      (form-urlencoded-to-query body)
				      :test #'equal)))))
	       (with-http-response (req ent)
		 (with-http-body (req ent)
		   (if* text
		      then ; got the quotation, analyze it
			   (html 
			    (:html
			     (:head (:title "Character Counts")
				    (:body 
				     (:table
				     (do ((i #.(char-code #\a) (1+ i)))
					 ((> i #.(char-code #\z)))
				       (html (:tr
					      (:td (:princ (code-char i)))
					      (:td (:princ 
						    (count (code-char i)
							   text)))))))))))
		      else ; ask for quotation
			   (html
			    (:html
			     (:head (:title "quote character counter")
				    (:body 
				     ((:form :action "charcount"
					     :method "POST")
				      "Enter your favorite quote "
				      :br
				      ((:textarea
					:name "quotation"
					:rows 30
					:cols 50))
				      :br
				      ((:input :type "submit"
					       :name "submit"
					       :value "count it")))))))))))))

				       
			    
			   
	       
					
				      

		       
