CSS::Selector(3pm) User Contributed Perl Documentation CSS::Selector(3pm)NAME
CSS::Selector - A selector in a CSS object tree
SYNOPSIS
use CSS;
DESCRIPTION
This module represents a selector in a CSS object tree. Read the CSS.pm pod for information about the CSS object tree.
METHODS
CONSTRUCTORS
"new()" or "new( { ..options.. } )"
This constructor returns a new "CSS::Selector" object, with an optional hash of options.
name selector name (as string)
adaptor adaptor to use for serialization
ACCESSORS
"set_adaptor( 'CSS::Adaptor::Foo' )"
This method sets the current adaptor for the object.
AUTHOR
Copyright (C) 2003-2004, Cal Henderson <cal@iamcal.com>
SEE ALSO
CSS, http://www.w3.org/TR/REC-CSS1
perl v5.14.2 2008-04-23 CSS::Selector(3pm)
Check Out this Related Man Page
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)