File Coverage

blib/lib/CSS/Selector/Grammar.pm

Criterion	Covered	Total	%
statement	18	18	100.0
branch			n/a
condition			n/a
subroutine	6	6	100.0
pod			n/a
total	24	24	100.0

package CSS::Selector::Grammar;
$CSS::Selector::Grammar::VERSION = '0.002';
# ABSTRACT: Generate parse trees for CSS3 selectors.


use v5.10;
use strict;
use warnings;

use parent 'Exporter';

our @EXPORT = qw(parse_selector);

{
    use Regexp::Grammars;

    # lexemes
    qr/




         [-]?<.nmstart><.nmchar>*
          <.nmchar>+
       [_a-zA-Z]|<.nonascii>|<.escape>
      [^\0-\177]
       \\[0-9a-fA-F]{1,6}(?:\r\n|[ \n\r\t\f])?+
        <.unicode>|\\[^\n\r\f0-9a-f]
        [_a-zA-Z0-9-]|<.nonascii>|<.escape>
           [0-9]+|[0-9]*\.[0-9]++
        <.string1>|<.string2>
       \"(?:[^\n\r\f\\"]|\\<.nl>|<.nonascii>|<.escape>)*+\"
       \'(?:[^\n\r\f\\']|\\<.nl>|<.nonascii>|<.escape>)*+\'
       <.invalid1>|<.invalid2>
      \"(?:[^\n\r\f\\"]|\\<.nl>|<.nonascii>|<.escape>)*+
      \'(?:[^\n\r\f\\']|\\<.nl>|<.nonascii>|<.escape>)*+
            \n|\r\n|\r|\f
             [ \t\r\n\f]*+

             (?i:d|\\0{0,4}(?:44|64)(?:\r\n|[ \t\r\n\f])?)
             (?i:e|\\0{0,4}(?:45|65)(?:\r\n|[ \t\r\n\f])?)
             (?i:n|\\0{0,4}(?:4e|6e)(?:\r\n|[ \t\r\n\f])?|\\n)
             (?i:o|\\0{0,4}(?:4f|6f)(?:\r\n|[ \t\r\n\f])?|\\o)
             (?i:t|\\0{0,4}(?:54|74)(?:\r\n|[ \t\r\n\f])?|\\t)
             (?i:v|\\0{0,4}(?:58|78)(?:\r\n|[ \t\r\n\f])?|\\v)

     [ \t\r\n\f]+

           ~=
          \|=
        \^=
        \$=
     \*=
                <.ident>
               <.string>
             <.ident> \(
               <.num>
                 \# <.name>
               <.w> \+
            <.w> \>
              <.w> ,
              <.w> ~
                : <.N><.O><.T> \(
            @ <.ident>
              <.invalid>
           <.num> %
            <.num> <.ident>
                  \