Whatpm/CSS/SelectorsSerializer.pm

package Whatpm::CSS::SelectorsSerializer;
use strict;
our $VERSION=do{my @r=(q$Revision: 1.4 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};

use Whatpm::CSS::SelectorsParser qw(:selector :combinator :match);

sub serialize_test ($$) {
  my (undef, $selectors) = @_;
  my $i = 0;
  my $ident = sub {
    my $s = shift;
    $s =~ s{([^A-Za-z_0-9\x80-\x{D7FF}\x{E000}-\x{10FFFF}-])}{
      my $v = ord $1;
      sprintf '\\%06X',$v > 0x10FFFF ? 0xFFFFFF : $v;
    }ge;
    $s =~ s/^([0-9])/\\00003$1/g;
    $s =~ s/^-([^A-Za-z\x80-\x{D7FF}\x{E000}-\x{10FFFF}_])/\\00002D$1/g;
    $s = '\\00002D' if $s eq '-';
    return $s;
  }; # $ident
  my $str = sub {
    my $s = shift;
    $s =~ s{([^\x20\x21\x23-\x5B\x5D-\x{D7FF}\x{E000}-\x{10FFFF}])}{
      my $v = ord $1;
      sprintf '\\%06X',$v > 0x10FFFF ? 0xFFFFFF : $v;
    }ge;
    return '"'.$s.'"';
  }; # $str
  my $r = join ",\n", map {
    join "", map {
      if (ref $_) {
        my $ss = [];
        $ss->[LOCAL_NAME_SELECTOR] = [LOCAL_NAME_SELECTOR, undef];
        for my $s (@$_) {
          if ($s->[0] == NAMESPACE_SELECTOR or
              $s->[0] == LOCAL_NAME_SELECTOR) {
            $ss->[$s->[0]] = $s;
          } else {
            push @{$ss->[$s->[0]] ||= []}, $s;
          }
        }
        
        my $v = '';
        if (not defined $ss->[NAMESPACE_SELECTOR]) {
          $v .= '*|';
        } elsif (defined $ss->[NAMESPACE_SELECTOR]->[1]) {
          $v .= $ident->($ss->[NAMESPACE_SELECTOR]->[1]) . '|';
        } else {
          $v .= '|';
        }

        if (defined $ss->[LOCAL_NAME_SELECTOR]->[1]) {
          $v .= $ident->($ss->[LOCAL_NAME_SELECTOR]->[1]);
        } else {
          $v .= '*';
        }

        $v .= join '', sort {$a cmp $b} map {
          '[' .
          (defined $_->[1] ?
            $_->[1] eq '' ? '' : $ident->($_->[1]) : '*') .
          '|' .
          $ident->($_->[2]) .
          ($_->[3] != EXISTS_MATCH ?
            {EQUALS_MATCH, '=',
             INCLUDES_MATCH, '~=',
             DASH_MATCH, '|=',
             PREFIX_MATCH, '^=',
             SUFFIX_MATCH, '$=',
             SUBSTRING_MATCH, '*='}->{$_->[3]} .
            $str->($_->[4])
          : '') .
          ']';
        } @{$ss->[ATTRIBUTE_SELECTOR] || []};

        $v .= join '', sort {$a cmp $b} map {
          '.' . $ident->($_->[1]);
        } @{$ss->[CLASS_SELECTOR] || []};

        $v .= join '', sort {$a cmp $b} map {
          '#' . $ident->($_->[1]);
        } @{$ss->[ID_SELECTOR] || []};

        $v .= join '', sort {$a cmp $b} map {
          my $v = $_;
          if ($v->[1] eq 'lang') {
            ':lang(' . $ident->($v->[2]) . ')';
          } elsif ($v->[1] eq 'not') {
            my $v = Whatpm::CSS::SelectorsSerializer->serialize_test
                ([[DESCENDANT_COMBINATOR, [@{$v}[2..$#{$v}]]]]);
            $v =~ s/^    \*\|\*(?!$)/    /;
            ":not(\n    " . $v . "    )";
          } elsif ({'nth-child' => 1,
                    'nth-last-child' => 1,
                    'nth-of-type' => 1,
                    'nth-last-of-type' => 1}->{$v->[1]}) {
            ':' . $ident->($v->[1]) . '(' .
            ($v->[2] . 'n' . ($v->[3] < 0 ? $v->[3] : '+' . $v->[3])) . ')';
          } elsif ($v->[1] eq '-manakai-contains') {
            ':-manakai-contains(' . $str->($v->[2]) . ')';
          } else {
            ':' . $ident->($v->[1]);
          }
        } @{$ss->[PSEUDO_CLASS_SELECTOR] || []};

        $v .= join '', sort {$a cmp $b} map {
          '::' . $ident->($_->[1]);
        } @{$ss->[PSEUDO_ELEMENT_SELECTOR] || []};

        $v . "\n";
      } else {
        "  " . {
          DESCENDANT_COMBINATOR, ' ',
          CHILD_COMBINATOR, '>',
          ADJACENT_SIBLING_COMBINATOR, '+',
          GENERAL_SIBLING_COMBINATOR, '~',
        }->{$_} . " ";
      }
    } @$_;
  } @$selectors;  

  return $r;
} # serialize_test

=head1 LICENSE

Copyright 2007 Wakaba <w@suika.fam.cx>

This library is free software; you can redistribute it
and/or modify it under the same terms as Perl itself.

=cut

1;
# $Date: 2007/10/23 11:32:57 $
1	wakaba	1.1	package Whatpm::CSS::SelectorsSerializer;
2			use strict;
3	wakaba	1.5	our $VERSION=do{my @r=(q$Revision: 1.4 $=~/\d+/g);sprintf "%d."."%02d" x $#r,@r};
4	wakaba	1.1
5			use Whatpm::CSS::SelectorsParser qw(:selector :combinator :match);
6
7	wakaba	1.5	sub serialize_test ($$) {
8			my (undef, $selectors) = @_;
9	wakaba	1.1	my $i = 0;
10			my $ident = sub {
11			my $s = shift;
12			$s =~ s{([^A-Za-z_0-9\x80-\x{D7FF}\x{E000}-\x{10FFFF}-])}{
13			my $v = ord $1;
14			sprintf '\\%06X',$v > 0x10FFFF ? 0xFFFFFF : $v;
15			}ge;
16			$s =~ s/^([0-9])/\\00003$1/g;
17	wakaba	1.4	$s =~ s/^-([^A-Za-z\x80-\x{D7FF}\x{E000}-\x{10FFFF}_])/\\00002D$1/g;
18			$s = '\\00002D' if $s eq '-';
19	wakaba	1.1	return $s;
20	wakaba	1.4	}; # $ident
21	wakaba	1.1	my $str = sub {
22			my $s = shift;
23			$s =~ s{([^\x20\x21\x23-\x5B\x5D-\x{D7FF}\x{E000}-\x{10FFFF}])}{
24			my $v = ord $1;
25			sprintf '\\%06X',$v > 0x10FFFF ? 0xFFFFFF : $v;
26			}ge;
27			return '"'.$s.'"';
28			}; # $str
29			my $r = join ",\n", map {
30			join "", map {
31			if (ref $_) {
32			my $ss = [];
33			$ss->[LOCAL_NAME_SELECTOR] = [LOCAL_NAME_SELECTOR, undef];
34			for my $s (@$_) {
35			if ($s->[0] == NAMESPACE_SELECTOR or
36			$s->[0] == LOCAL_NAME_SELECTOR) {
37			$ss->[$s->[0]] = $s;
38			} else {
39			push @{$ss->[$s->[0]] \|\|= []}, $s;
40			}
41			}
42
43			my $v = '';
44			if (not defined $ss->[NAMESPACE_SELECTOR]) {
45			$v .= '*\|';
46			} elsif (defined $ss->[NAMESPACE_SELECTOR]->[1]) {
47	wakaba	1.5	$v .= $ident->($ss->[NAMESPACE_SELECTOR]->[1]) . '\|';
48	wakaba	1.1	} else {
49			$v .= '\|';
50			}
51
52			if (defined $ss->[LOCAL_NAME_SELECTOR]->[1]) {
53			$v .= $ident->($ss->[LOCAL_NAME_SELECTOR]->[1]);
54			} else {
55			$v .= '*';
56			}
57
58			$v .= join '', sort {$a cmp $b} map {
59			'[' .
60			(defined $_->[1] ?
61	wakaba	1.5	$_->[1] eq '' ? '' : $ident->($_->[1]) : '*') .
62	wakaba	1.1	'\|' .
63			$ident->($_->[2]) .
64			($_->[3] != EXISTS_MATCH ?
65			{EQUALS_MATCH, '=',
66			INCLUDES_MATCH, '~=',
67			DASH_MATCH, '\|=',
68			PREFIX_MATCH, '^=',
69			SUFFIX_MATCH, '$=',
70			SUBSTRING_MATCH, '*='}->{$_->[3]} .
71			$str->($_->[4])
72			: '') .
73			']';
74			} @{$ss->[ATTRIBUTE_SELECTOR] \|\| []};
75
76			$v .= join '', sort {$a cmp $b} map {
77			'.' . $ident->($_->[1]);
78			} @{$ss->[CLASS_SELECTOR] \|\| []};
79
80			$v .= join '', sort {$a cmp $b} map {
81			'#' . $ident->($_->[1]);
82			} @{$ss->[ID_SELECTOR] \|\| []};
83
84			$v .= join '', sort {$a cmp $b} map {
85			my $v = $_;
86			if ($v->[1] eq 'lang') {
87			':lang(' . $ident->($v->[2]) . ')';
88			} elsif ($v->[1] eq 'not') {
89			my $v = Whatpm::CSS::SelectorsSerializer->serialize_test
90	wakaba	1.5	([[DESCENDANT_COMBINATOR, [@{$v}[2..$#{$v}]]]]);
91	wakaba	1.1	$v =~ s/^ \\\|\(?!$)/ /;
92			":not(\n " . $v . " )";
93			} elsif ({'nth-child' => 1,
94			'nth-last-child' => 1,
95			'nth-of-type' => 1,
96			'nth-last-of-type' => 1}->{$v->[1]}) {
97			':' . $ident->($v->[1]) . '(' .
98			($v->[2] . 'n' . ($v->[3] < 0 ? $v->[3] : '+' . $v->[3])) . ')';
99	wakaba	1.2	} elsif ($v->[1] eq '-manakai-contains') {
100			':-manakai-contains(' . $str->($v->[2]) . ')';
101	wakaba	1.1	} else {
102			':' . $ident->($v->[1]);
103			}
104			} @{$ss->[PSEUDO_CLASS_SELECTOR] \|\| []};
105
106			$v .= join '', sort {$a cmp $b} map {
107			'::' . $ident->($_->[1]);
108			} @{$ss->[PSEUDO_ELEMENT_SELECTOR] \|\| []};
109
110			$v . "\n";
111			} else {
112			" " . {
113			DESCENDANT_COMBINATOR, ' ',
114			CHILD_COMBINATOR, '>',
115			ADJACENT_SIBLING_COMBINATOR, '+',
116			GENERAL_SIBLING_COMBINATOR, '~',
117			}->{$_} . " ";
118			}
119			} @$_;
120			} @$selectors;
121
122	wakaba	1.5	return $r;
123	wakaba	1.1	} # serialize_test
124
125	wakaba	1.3	=head1 LICENSE
126
127			Copyright 2007 Wakaba <w@suika.fam.cx>
128
129			This library is free software; you can redistribute it
130			and/or modify it under the same terms as Perl itself.
131
132			=cut
133
134	wakaba	1.1	1;
135	wakaba	1.5	# $Date: 2007/10/23 11:32:57 $