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Subject: Re: Using filepath method to identify an .html page
From: Ferrous Cranus <nikos.gr33k@gmail.com>
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Xref: csiph.com comp.lang.python:37325

=CE=A4=CE=B7 =CE=A4=CF=81=CE=AF=CF=84=CE=B7, 22 =CE=99=CE=B1=CE=BD=CE=BF=CF=
=85=CE=B1=CF=81=CE=AF=CE=BF=CF=85 2013 6:11:20 =CE=BC.=CE=BC. UTC+2, =CE=BF=
 =CF=87=CF=81=CE=AE=CF=83=CF=84=CE=B7=CF=82 Chris Angelico =CE=AD=CE=B3=CF=
=81=CE=B1=CF=88=CE=B5:
> On Wed, Jan 23, 2013 at 2:59 AM, Ferrous Cranus <nikos.gr33k@gmail.com> w=
rote:
>=20
> > I just need a way to CONVERT a string(absolute path) to a 4-digit uniqu=
e number with INT!!! That's all i want!! But i cannot make it work :(
>=20
>=20
>=20
> Either you are deliberately trolling, or you have a major
>=20
> comprehension problem. Please go back and read, carefully, all the
>=20
> remarks you've been offered in this thread. Feel free to ask for
>=20
> clarification of anything that doesn't make sense, but be sure to read
>=20
> all of it. You are asking something that is fundamentally
>=20
> impossible[1]. There simply are not enough numbers to go around.
>=20
>=20
>=20
> ChrisA
>=20
> [1] Well, impossible in decimal. If you work in base 4294967296, you
>=20
> could do what you want in four "digits".

Fundamentally impossible?

Well....

OK: How about this in Perl:

$ cat testMD5.pl
use strict;

foreach my $url(qw@ /index.html /about/time.html @){
        hashit($url);
}

sub hashit {
   my $url=3Dshift;
   my @ltrs=3Dsplit(//,$url);
   my $hash =3D 0;

   foreach my $ltr(@ltrs){
        $hash =3D ( $hash + ord($ltr)) %10000;
   }
   printf "%s: %0.4d\n",$url,$hash
  =20
}


which yields:
$ perl testMD5.pl=20
/index.html: 1066
/about/time.html: 1547