Subject: ANNOUNCE: Image::Grab 0.9.1
From: [email-masked]
Date: 24 Feb 1999 16:49:39 GMT
Newsgroups: comp.lang.perl.announce,comp.lang.perl.modules

I'm releasing the following to see if there is interest in continued
developement.  It needs just a little more work to reach 1.0.

NAME
    Image::Grab - Perl extension for Grabbing images off the
    Internet.

SYNOPSIS
      use Image::Grab;
      $pic = new Image::Grab;

      # The simplest case of a grab
      $pic->url('http://www.example.com/someimage.jpg')
      $pic->grab;

      # How to get at the image
      open(DISPLAY, "| display -");
      print DISPLAY $pic->image;
      close(DISPLAY)

      # A slightly more complicated case
      $pic->url('.*logo.*\.gif');
      $pic->refer('http://www.gtk.com');
      $pic->grab;

      # Get a weather forcast
      $pic->url('msy.*\.gif');
      $pic->refer('http://www.intellicast.com/weather/msy/content.shtml');
      $pic->grab;

DESCRIPTION
    Image::Grab is a simple way to get images with URLs that change
    constantly.

Accessor Methods
    The following are the accessor methods availible for any
    Image::Grab object. Accessor methods are used to get or set
    information for an object. For example,

      $img->refer("http://www.yahoo.com");

    would set the refer field and

      $img->refer;

    would return the information contained in the refer field.

  refer

    When you do a grab, this url will be given as the referring URL.
    If the information contained in the 'url' property is not a URL,
    then the information from the URL in the refer field will be
    used to find the image. For example, if url="mac.*\.gif" and
    refer="http://www.yahoo.com", then when a grab is performed, the
    page at www.yahoo.com is searched to see if any images on the
    page match the regular expression in url. The first one that
    matches is grabbed.

  url

    The url that is ultimatly grabbed. This should be set before any
    grab is done. It can be a straight url, a regular expression, or
    an index for the image. For an example of a regular expression,
    see the section on refer. Indexes begin with a pound sign ("#")
    and are followed by a number that indicates the image on the
    page. For instance, "#2" would find the second image on the page
    pointed to by the refer.

  date

    The date that the image was last updated. The date is
    represented in the number of seconds from epoch where epoch is
    January 1, 1970.

  md5

    The md5 sum for the image. Usually, you shouldn\'t try to set
    this field.

  type

    The type of information. Usually it will be a MIME type such as
    "image/jpeg".

  cookiefile

    Where the cookiefile is located. Set this to the file containing
    the cookies if you wish to use the cookie file for the image.

  cookiejar

    Usually only used internally. The cookiejar for the image.

  image

    The actual image. Usually, you should\'t try to set this field.

  ua

    Usually only used internally. The user agent used to get the
    image.

Other Methods
  realm($user, $password)

    Provides a username/password pair for the realm the image is in.

  getRealURL

    Returns the actual URL of the image. This method is called
    internally to determine the URL of the image if the information
    contained in the URL field is not a url.

    You can use this method to get the URL for an image if that is
    all you need.

  grab

    Grab the image. url must contain an actual URL or information
    that can produce a URL before this method can be used. If url
    does not contain a URL, then getRealURL is called before the
    image is fetched.

  grab_new

    Not Yet Implemented. Currently, it acts just like grab.

BUGS
    It only understands as URLs strings that begin with "http://".

    Perhaps URL should not be so overloaded. Perhaps I should have
    'regexp' and 'index' accessor methods.

    Ummm... I am sure there are others...

AUTHOR
    Mark 'Hex' Hershberger <[email-masked]>

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