[plt-scheme] servlets and mathml

Jay McCarthy a écrit :

>You must add
>
>(require (lib "response.ss" "web-server"))
>
>to your preamble.
>
>On 12/12/05, Jean-François Trevien <jftrevien at free.fr> wrote:
>  
>
Thanks a lot!
I have now a working example with some more modification:

(module test-mathml mzscheme
  (require (lib "servlet.ss" "web-server")
           (lib "response.ss" "web-server")
           (lib "xml.ss" "xml")
           )
  (provide interface-version timeout start)
  (define interface-version 'v1)
  (define timeout +inf.0)
  (define (make-page body)
    (make-response/full
     200 "OK" (current-seconds) (string->bytes/utf-8 "text/xml")
     '()
     (list "<?xml version=\"1.0\"?>"
           (xexpr->string
            `(html ((xmlns "http://www.w3.org/1999/xhtml")
                    (xmlns:math "http://www.w3.org/1998/Math/MathML")
                    )
                   (head (title "Mathml sample"))
                   ,body)))))
  (define (start initial-request)
    (make-page 
     `(body
       (p "(a+b)^2 :")
       (math ((xmlns "http://www.w3.org/1998/Math/MathML"))
             (mrow
              (msup
               (mfenced (mrow (mi "a")(mo "+")(mi "b")))(mn "2")))
             )
       (p "sqrt(a+b)^27 :")
       (math ((xmlns "http://www.w3.org/1998/Math/MathML"))
             (msup
              (msqrt
               (mrow
                (mi "a")(mo "+")(mi "b")))
              (mn "27")))
       (br)
       (math ((xmlns "http://www.w3.org/1998/Math/MathML"))
             (mrow
              (msup
               (mfenced ((open "[")(close "]"))
                        (mrow
                         (mi "a")(mo "+")(mi "b")))
               (mn "260"))
              (mo "+")
              (msub
               (mfenced ((open "{")(close "}"))
                        (mrow
                         (mi "a")(mo "+")(mi "b")))
               (mi "i"))))
       (br)"pfiou..."
       )))
  )