CSS(3pm)						User Contributed Perl Documentation						  CSS(3pm)

NAME

       CSS - Object oriented access to Cascading Style Sheets (CSS)

SYNOPSIS

	 use CSS;

	 # create a CSS object with the default options
	 my $css = CSS->new();

	 # create a CSS object with a specific parser
	 my $css = CSS->new( { 'parser' => 'CSS::Parse::Lite' } );
	 my $css = CSS->new( { 'parser' => 'CSS::Parse::Heavy' } );
	 my $css = CSS->new( { 'parser' => 'CSS::Parse::Compiled' } );

	 # create a CSS object with a specific adaptor
	 my $css = CSS->new( { 'adaptor' => 'CSS::Adaptor' } );
	 my $css = CSS->new( { 'adaptor' => 'CSS::Adaptor::Pretty' } );
	 my $css = CSS->new( { 'adaptor' => 'CSS::Adaptor::Debug' } );

	 # parse some CSS from a string
	 $css->read_string( $css_data );
	 $css->read_string( ( $css_data, $more_css_data ) );

	 # parse some CSS from a file
	 $css->read_file( 'my_file.css' );
	 $css->read_file( ( 'my_file.css', 'my_other_file.css' ) );

	 # output the CSS using the current adaptor
	 print $css->output();

	 # set a new adaptor and then output the CSS
	 $css->set_adaptor( 'CSS::Adaptor::Foo' );
	 print $css->output();

	 # output the CSS using a tempory adaptor
	 print $css->output( 'CSS::Adaptor::Bar' );

	 # forget about the CSS we've already parsed
	 $css->purge();

DESCRIPTION

       This module can be used, along with a CSS::Parse::* module, to parse CSS data and represent it as a tree of objects. Using a
       CSS::Adaptor::* module, the CSS data tree can then be transformed into other formats.

NOTICE

       From version 1.00 of this module onwards, backwards compatibility is broken. This is due to large changes in the way data is parsed and
       then represented internally. Version 0.08 is still available on CPAN: http://search.cpan.org/author/IAMCAL/CSS-0.08/
       <http://search.cpan.org/author/IAMCAL/CSS-0.08/>

TREE STRUCTURE

       The CSS object is the head of the tree. It contains a list of CSS::Style objects which each represent a CSS ruleset. Each of these objects
       contains a list of selectors and properties. Each selector is stored as a CSS::Selector object. Each property object is stored as a
       CSS::Property object and contains a list of values. These values are stored as CSS::Value objects.

	 foo, bar {
	     baz: fop;
	     woo: yay houpla;
	 }

       The above example would be represented as a single CSS::Style object.  That object would then have two CSS::Selector objects representing
       'foo' and 'bar'. It would also have two CSS::Property objects representing 'baz' and 'woo'. The 'baz' object then has a single child
       CSS::Value object for 'fop', whilst the 'woo' object has two child objects for 'yay' and 'houpla'.

METHODS

   CONSTRUCTOR
       "new()" or "new( { ..options.. } )"
	   An optional hash can contain arguments:

	     parser	   module to use as the CSS parser
	     adaptor	   adaptor to use for output

   ACCESSORS
       "read_file( $filename )" or "read_file( @filenames )"
	   Read one or mores files and parse the CSS within them.

       "read_string( $scalar )" or "read_string( @strings )"
	   Read one or more strings and parse the CSS within them.

       "output()" or "output( 'CSS::Adaptor::Foo' )"
	   Return a string representation of the CSS tree, using either the current adaptor or the specified one.

       "set_adaptor( 'CSS::Adaptor::Bar' )"
	   Set the current adaptor for the CSS tree.

       "purge()"
	   Forget all the objects in the CSS tree;

       "get_style_by_selector( 'selector_name' )"
	   Returns the first CSS::Style object with the specified selector name attached. Returns zero on failure.

AUTHORS

       Copyright (C) 2001-2002, Allen Day <allenday@ucla.edu>

       Copyright (C) 2003-2004, Cal Henderson <cal@iamcal.com>

SEE ALSO

       CSS::Style, CSS::Selector, CSS::Property, CSS::Value, CSS::Parse, CSS::Parse::Lite, CSS::Parse::Heavy, CSS::Parse::Compiled,
       CSS::Parse::PRDGrammar, CSS::Adaptor, CSS::Adaptor::Pretty, CSS::Adaptor::Debug, perl(1)

perl v5.14.2							    2008-04-23								  CSS(3pm)