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lib/CSS/Prepare/Property/Values.pm  view on Meta::CPAN

        )
    }x;
our $positive_length_value = qr{
        (?:
            $positive_number_value
            (?: px | em | ex | in | cm | mm | pt | pc )
            |
            0
        )
    }x;
my $percentage_value = qr{ $number_value % }x;
our $positive_percentage_value = qr{ $positive_number_value % }x;
our $colour_value = qr{
        (?:
              aqua | black  | blue | fuchsia | gray   | green
            | lime | maroon | navy | olive   | orange | purple
            | red  | silver | teal | white   | yellow
            |
            \# [0-9a-fA-F]{6}
            |
            \# [0-9a-fA-F]{3}
            |
            rgb\(
                (?:
                    (?: (?: $number_value | $percentage_value ) , \s* ){2}
                    (?: $number_value | $percentage_value )
                )
            \)
        )
    }x;
our $string_value = qr{
        (?:
            \' (?: \\ \' | [^'] )* \'   # single-quoted
            |                           # or
            \" (?: \\ \" | [^"] )* \"   # double-quoted
        )
    }x;
our $url_value = qr{
        url \( \s*
        (?:
            $string_value \s* \)    # either a string
            |
            [^'"\)] .*?             # or text not including a right paren
            (?<! \\ ) \)            # (unless it is escaped)
        )
    }x;
my $media_types = qr{
        (?:
              all        | braille | embossed | handheld | print
            | projection | screen  | speech   | tty      | tv
        )
    }x;
our $media_types_value = qr{
        $media_types
        (?: \, \s* $media_types )*
    }x;

# descriptive value types
our $background_attachment_value = qr{ (?: scroll | fixed | inherit ) }x;
our $background_colour_value
    = qr{ (?: transparent | inherit | $colour_value ) }x;
our $background_image_value = qr{ (?: none | inherit | $url_value ) }x;
our $background_repeat_value
    = qr{ (?: repeat | repeat-x | repeat-y | no-repeat | inherit ) }x;
my $background_positions_horizontal
    = qr{ (?: left | center | centre | right ) }x;
my $background_positions_vertical
    = qr{ (?: top | center | centre | bottom ) }x;
our $background_position_value = qr{
        (?:
                (?:
                    (?:
                        $percentage_value
                        | $length_value
                        | $background_positions_horizontal
                    )
                    (?:
                        \s+
                        (?:
                              $percentage_value
                            | $length_value
                            | $background_positions_vertical
                        )
                    )?
                )
            |
                (?:
                    $background_positions_horizontal \s+
                    $background_positions_vertical
                )
            |
                (?:
                    $background_positions_vertical \s+
                    $background_positions_horizontal
                )
            |
                (?: $background_positions_vertical )
            |
                inherit
        )
    }x;

my $border_collapse_value = qr{ (?: collapse | separate | inherit ) }x;
our $border_colour_value = qr{ (?: transparent | inherit | $colour_value ) }x;
our $individual_border_radius_value
    = qr{ (?: $positive_length_value | $positive_percentage_value ) }x;
our $border_radius_corner_value = qr{
        $individual_border_radius_value
        (?: \s+ $individual_border_radius_value )?
    }x;
our $border_radius_value = qr{
        $individual_border_radius_value
        (?: \s+ $individual_border_radius_value ){0,3}
        (?:
            \s* / \s*
            $individual_border_radius_value
            (?: \s+ $individual_border_radius_value ){0,3}
        )?
    }x;
my $border_spacing_value = qr{
        (?:
              $length_value
            | $length_value \s+ $length_value
            | inherit
        )
    }x;
our $border_style_value = qr{
        (?:
              dashed | dotted | double | groove | hidden
            | inset  | outset | ridge  | solid

            | none | inherit
        )
    }x;
our $border_width_value
    = qr{ (?: thin | medium | thick | $positive_length_value | inherit ) }x;

my $caption_side_value = qr{ (?: top | bottom | inherit ) }x;
my $clear_value = qr{ (?: left | right | both | none | inherit ) }x;
my $shape_value = qr{
        (?:
            rect \( \s*
                (?: $length_value | auto )
                (?: \s* \, \s* (?: $length_value | auto ) ){3}
            \s* \)
        )
    }x;
my $clip_value = qr{ (?: $shape_value | auto | inherit ) }x;
my $content_repeatable = qr{
        (?:
              open-quote | close-quote | no-open-quote | no-close-quote
            | attr \( $identifier_value \)
            | $string_value | $url_value | $identifier_value
        )
    }x;
my $content_value = qr{
        (?:
              normal | none | inherit
            | $content_repeatable
            | (?:
                  $content_repeatable
                  (?: \s+ $content_repeatable )+
              )
        )