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HELP: parsing unicode web sites

• • Reply

  3 months ago

  by andrewwan1980

  Andrew Wan

  , United Kingdom

  Joined 1 year ago

  I need help in parsing unicode webpages & downloading jpeg image files via Perl scripts.

  I read http://www.cs.utk.edu/cs594ipm/perl/crawltut.html about using LWP or HTTP or get($url) functions & libraries. But the content returned is always garbled. I have used get($url) on a non-unicode webpage and the content is returned in perfect ascii.

  But now I want to parse http://www.tom365.com/movie_2004/html/5507.html and the page I get back is garbled encoded. I have read about Encode but don't know how to use it.

  I need a Perl script to parse that above page and extract the URL for the image in this pattern:

  If anyone knows how to do this parsing unicode webpages then I'd be very grateful. Thank you
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• • Reply

  3 months ago

  by andrewwan1980

  Andrew Wan

  , United Kingdom

  Joined 1 year ago

  Thanks to those who helped. Here's my working script:

   

  
  

   #!/usr/bin/perl
  # tom365crawl2.pl
  # http://www.cs.utk.edu/cs594ipm/perl/crawltut.html
  # http://perldoc.perl.org/Encode.html
  # http://juerd.nl/site.plp/perluniadvice
  # http://www.perlmonks.org/?node_id=620068
  
  use warnings;
  use strict;
  
  use File::stat;
  use Tie::File;
  
  use LWP::Simple;
  use LWP::UserAgent;
  use HTTP::Request;
  use HTTP::Response;
  use HTML::LinkExtor; # Allows you to extract the links off of an HTML page.
  #use File::Slurp;
  
  use Encode;
  
  my $site1 = "http://www.tom365.com/"; # Full url like http://www.tom365.com/movie_2004/html/????.html
  my $delim1a = "\<div class=\"movie\"\>\<img src=\"";
  my $delim1b = "\" class=\"mp\" \/\>";
  my $folder1 = "movie_2004/html/";
  my $url1;
  my $start1 = 1000;
  my $end1 = 1000;
  my $contents1;
  my $image1;
  
  my $browser1 = LWP::UserAgent->new();
  $browser1->timeout(10);
  my $request1;
  my $response1;
  
  my $count;
  for ($count=$start1; $count<=$end1; $count++) {
    $url1 = $site1 . $folder1 . $count . ".html";
    printf "Downloading %s\n", $url1;
  
    # Method 1
    #$contents1 = get($url1);
  
    # Method 2
    $request1 = HTTP::Request->new(GET => $url1);
    $response1 = $browser1->request($request1);
    if ($response1->is_error()) {
      printf "%s\n", $response1->status_line;
    }
    $contents1 = $response1->decoded_content();
  
    #open(NEWFILE1, "> Debug.txt");
    #(print NEWFILE1 $contents1)    or die "Can't write to Debug.txt: $!";
    #close(NEWFILE1);
  
    #print $contents1;
  
    if ($contents1 =~ /\<div class=\"movie\"\>\<img src=\"(.*)\" class=\"mp\" \/\>/m) {
      $image1 = "$1";
      printf "Downloading %s\n", $image1;
      `wget -q -O $count.jpg $image1`;
  
      #if ($image1 =~ /\/([^\/]*)$/m) {
      #  printf "Renaming %s to $count.jpg\n", $1;
      #} else {
      #  printf "Could not rename %s to $count.jpg\n", $image1;
      #}
    } else {
      #open(NEWFILE1, "> $count.txt");
      #(print NEWFILE1 "Download failed.\n")    or die "Can't write to $image1: $!";
      #close(NEWFILE1);
    }
  }

  
  

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