xml-dev - RE: RFC: Attributes and XML-RPC

[Blair Murri <BMurri@wavephore.net>]

	There is a problem with the perl script that you wrote.  The
attrib.xml version contains the words from the dicionary, but the child.xml
doesn't (unless my mail server dropped a line).

	I don't have time to re-run your test yet, but it would be
interesting to see what happens when the test is fair.

Blair L. Murri
Sr. Programmer/etc.
Wavo Corporation

> -----Original Message-----
> From:	Mark Nutter [SMTP:mnutter@fore.com]
> Sent:	Wednesday, September 22, 1999 11:26 AM
> To:	xml-dev@ic.ac.uk
> Subject:	RE: RFC: Attributes and XML-RPC
> 
> I wrote a quick perl script to take /usr/dict/words and turn it into an
> XML file, with some artificially generated "attributes".  In the resulting
> file named attrib.xml, each <word> tag contains the additional information
> as attributes.  I did the same thing to produce a file called child.xml,
> except that the additional information is presented as a child element
> instead of as an attribute.  Here are the results:
> 
> $ ./make.pl
> $ ls -l
> total 13004
> -rw-rw-r--   1 mnutter  mnutter   5811852 Sep 22 13:16 attrib.xml
> -rw-rw-r--   1 mnutter  mnutter   7445892 Sep 22 13:16 child.xml
> -rwxr-xr-x   1 mnutter  mnutter       976 Sep 22 13:16 make.pl
> $ gzip attrib.xml
> $ gzip child.xml
> $ ls -l
> total 1127
> -rw-rw-r--   1 mnutter  mnutter    671039 Sep 22 13:16 attrib.xml.gz
> -rw-rw-r--   1 mnutter  mnutter    472394 Sep 22 13:16 child.xml.gz
> -rwxr-xr-x   1 mnutter  mnutter       976 Sep 22 13:16 make.pl
> 
> I used gzip as an example of off-the-shelf compression technology.  As you
> can see, even though the raw child.xml file is larger, the compressed
> version is *smaller* than the corresponding implementation with
> attributes.
> 
> This may not be true in all cases, of course, but I expect it often will,
> due to the way such compression algorithms work.
> 
> For your reference, here is the Perl script I used to create the two
> files:
> 
> open WORDS, "</usr/dict/words" or die "Couldn't open dictionary.\n";
> open ATTRIB, ">attrib.xml" or die "Couldn't open attrib.xml\n";
> open CHILD, ">child.xml" or die "Couldn't open child.xml\n";
> 
> @twenty_strings = qw(one two three four five six seven eight nine ten
>                      eleven twelve thirteen fourteen fifteen sixteen
>                      seventeen eighteen nineteen twenty);
> 
> print ATTRIB "<attrib>\n";
> print CHILD "<child>\n";
> 
> while($word = <WORDS>)
> {
>     $time = time();
>     $timestr = localtime($time);
>     $twenty = rand % 20;
>     $twentystr = $twenty_strings[$twenty];
>     print ATTRIB <<EOM;
>   <word time="$time" timestr="$timestr" twenty="$twenty"
>         twentystr="$twentystr">$word</word>
> EOM
>     print CHILD <<EOM;
>   <word>
>     <time>$time</time>
>     <timestr>$timestr</timestr>
>     <twenty>$twenty</twenty>
>     <twentystr>$twentystr</twentystr>
>   </word>
> EOM
> }
> 
> print ATTRIB "</attrib>\n";
> print CHILD "</child>\n";
> 
> close CHILD;
> close ATTRIB;
> close WORDS;
> 
> 
> 
> -_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-_-
> 
> Mark Nutter, <mnutter@fore.com>
> Internet Applications Developer
> FORE Systems
> Some people are atheists 'til the day they die.

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