I want to remove unused styles from a style sheet. So first off I'd like a list of all the selectors. How would I do this using CSS.pm? I can't make head nor tail of the docs (this is almost certainly not the fault of the docs). :-)

I want to iterate over each selector in the CSS object and get its name. Dumping the object shows that everything is there but I can't work out which assessor to use never mind how to use it.

My current attempts have proven woefully inadequate. Any pointers appreciated. 

#!/usr/bin/perl

use strict;
use warnings;
use CSS;

use Data::Dumper;
$Data::Dumper::Indent = 1;

my $css_data = do{$/ = undef; <DATA>};
#print qq{$css_data\n};

my $css = CSS->new();

$css->read_string($css_data);
#print Dumper $css; 

# fails
#my $style = $css->get_style_by_selector('selector_name') 
#    or die qq{could't get style\n};

#my @styles = $css->styles;
#my $selectors = $css->selectors;


# works
print $css->output();


# [id://208695|Simplifying CSS]

__DATA__

.selector_name {
    margin-left: 1em;
}

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In reply to Extracting a list of selectors from a css file by wfsp

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