- SPACE =
/\s/
- NO_SPACE =
''.freeze
- INHERIT =
'inherit'.freeze
- WEBSAFE =
%w(aliceblue antiquewhite aqua aquamarine azure beige bisque black blanchedalmond blue
blueviolet brown burlywood cadetblue chartreuse chocolate coral cornflowerblue cornsilk crimson cyan
darkblue darkcyan darkgoldenrod darkgray darkgrey darkgreen darkkhaki darkmagenta darkolivegreen
darkorange darkorchid darkred darksalmon darkseagreen darkslateblue darkslategray darkslategrey
darkturquoise darkviolet deeppink deepskyblue dimgray dimgrey dodgerblue firebrick floralwhite
forestgreen fuchsia gainsboro ghostwhite gold goldenrod gray grey green greenyellow honeydew
hotpink indianred indigo ivory khaki lavender lavenderblush lawngreen lemonchiffon lightblue
lightcoral lightcyan lightgoldenrodyellow lightgray lightgrey lightgreen lightpink lightsalmon
lightseagreen lightskyblue lightslategray lightslategrey lightsteelblue lightyellow lime
limegreen linen magenta maroon mediumaquamarine mediumblue mediumorchid mediumpurple
mediumseagreen mediumslateblue mediumspringgreen mediumturquoise mediumvioletred midnightblue
mintcream mistyrose moccasin navajowhite navy oldlace olive olivedrab orange orangered orchid
palegoldenrod palegreen paleturquoise palevioletred papayawhip peachpuff peru pink plum
powderblue purple red rosybrown royalblue saddlebrown salmon sandybrown seagreen seashell
sienna silver skyblue slateblue slategray slategrey snow springgreen steelblue tan teal
thistle tomato turquoise violet wheat white whitesmoke yellow yellowgreen).freeze
- HEX =
/^#(?:[0-9a-f]{3})(?:[0-9a-f]{3})?$/- RANGE_0_360 =
%r{
0| # 0
[1-9]\d?| # 1-9 and 10-99
[12]\d\d?| # 100-299
3[0-5]\d| # 300-359
360 # 360
}x- RANGE_0_100 =
%r{
0| # 0
[1-9]\d?| # 1-9 and 10-99
100 # 100
}x- RANGE_0_255 =
%r{
0| # 0
[1-9]\d?| # 1-9 and 10-99
1\d\d?| # 100-199
2[0-4]\d| # 200-249
25[0-5] # 250-255
}x- RANGE_ALPHA =
%r{
(0\.\d)| # 0.0-0.9
(1\.0)| # 1.0
[01] # 0 or 1
}x- HSL =
/^hsl\((#{RANGE_0_360}),(#{RANGE_0_100}%),(#{RANGE_0_100}%)\)$/- HSLA =
/^hsla\((#{RANGE_0_360}),(#{RANGE_0_100}%),(#{RANGE_0_100}%),(#{RANGE_ALPHA})\)$/- RGB =
/^rgb\((#{RANGE_0_255}),(#{RANGE_0_255}),(#{RANGE_0_255})\)$/- RGBA =
/^rgba\((#{RANGE_0_255}),(#{RANGE_0_255}),(#{RANGE_0_255}),(#{RANGE_ALPHA})\)$/