[LUGOS] Spremljanje spreminjanja web strani

David david.zerovnik at guest.arnes.si
Sun Oct 28 20:26:06 CET 2001


Lahko uporabis REBOL, tole je prekopirano iz njihovega prirocnika:

 A handy way to verify that a Web page has changed is by using the

checksum function. If the previously calculated checksum of a Web page
differs

from its current value, then the Web page has been modified since it was
last

checked. Here is an example that uses this technique. It checks a page every
eight

hours.

forever [

    page: read http://www.rebol.com

    page-sum: checksum page

    if any [

        not exists? %page-sum

        page-sum <> (load %page-sum)

    ][

    print ["Page changed" now]

    save %page-sum page-sum

    send luke at rebol.com page

]

wait 8:00

]

  A pozna ker kako v redu skripto ali program (textoven), ki ti pove kdaj se
je dolocena stran spremenila. Recimo mam listo strani in bi rad izvedel
enkrat na dan, kdaj se je kaksna stran spremenila.

  lp, Matej Spiller




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