読者です 読者をやめる 読者になる 読者になる

追加

Perl

xmlからデータ引っこ抜いた後、Rで遊べるようにデータの加工をやった。そのためのスクリプト。

#!/usr/bin/perl

use strict;
use warnings;
use XML::LibXML;
use LWP::Simple;

my $path = "/home/yasuhisa/svn/public/perl/friends";
opendir( DIR, $path );
my @files = grep { s/(.*)\.xml/$1/ } readdir(DIR);
closedir(DIR);

foreach my $friend (@files) {
    &writeFollowers($friend);
}

sub getFollowers() {
    my $username = shift;
    my $path     = "/home/yasuhisa/svn/public/perl/friends";
    my $file     = "$path/$username.xml";

    my $parser = XML::LibXML->new;
    my $dom = $parser->parse_file($file) or die;

    my @names   = $dom->getElementsByTagName("screen_name");
    my @friends = ();
    foreach (@names) {
        push( @friends, $_->firstChild->data );
    }
    return @friends;
}

sub writeFollowers() {
    my $name = shift;
    my $path = "/home/yasuhisa/svn/public/perl/friends";

    my $text    = "";
    my @list    = &getFollowers($name);
    foreach my $friend (@list) {
            $text = $text . "$friend\n";
    }
    my $file = "$path/$name.txt";
    open( FILE, "> $file" ) or die $!;
    print FILE $text;
    close(FILE);
}