codenothing/CSSCompressor

/**
 * 
 * Hex to Color
 * 
 * @author: Corey Hart <http://www.codenothing.com>
 * @description: Converts hex codes to short color names
 * 
 * @before:
 *     .example {
 *         color: #fffff0;
 *     }
 * 
 * @after:
 *     .example {
 *         color: ivory;
 *     }
 * 
 */

var CSSCompressor = global.CSSCompressor,
    table = CSSCompressor.tables[ 'Hex to Color' ] = {
        "#f0ffff": "azure",
        "#f5f5dc": "beige",
        "#ffe4c4": "bisque",
        "#a52a2a": "brown",
        "#ff7f50": "coral",
        "#ffd700": "gold",
        "#808080": "gray",
        "#008000": "green",
        "#4b0082": "indigo",
        "#fffff0": "ivory",
        "#f0e68c": "khaki",
        "#faf0e6": "linen",
        "#800000": "maroon",
        "#000080": "navy",
        "#808000": "olive",
        "#ffa500": "orange",
        "#da70d6": "orchid",
        "#cd853f": "peru",
        "#ffc0cb": "pink",
        "#dda0dd": "plum",
        "#800080": "purple",
        "#ff0000": "red",
        "#fa8072": "salmon",
        "#a0522d": "sienna",
        "#c0c0c0": "silver",
        "#fffafa": "snow",
        "#d2b48c": "tan",
        "#008080": "teal",
        "#ff6347": "tomato",
        "#ee82ee": "violet",
        "#f5deb3": "wheat",
        "#f00": "red"
    };

CSSCompressor.rule({

    name: 'Hex to Color',
    type: CSSCompressor.RULE_TYPE_VALUE,
    group: 'Color',
    description: "Converts hex codes to short color names",
    priority: CSSCompressor.PRIORITY_LOWER,

    callback: function( value, position, compressor ) {
        var match = table[ value.toLowerCase() ];

        if ( match ) {
            compressor.log(
                "Converting hex code to short color name '" + value + "' => '" + match + "'",
                position
            );

            return match;
        }
    }

});