codenothing/CSSCompressor

/**
 * 
 * Hex to Safe Color
 * 
 * @author: Corey Hart <http://www.codenothing.com>
 * @description: Converts hex codes to short safe color names
 * 
 * @before:
 *     .example {
 *         color: #000080;
 *     }
 * 
 * @after:
 *     .example {
 *         color: navy;
 *     }
 * 
 */

var CSSCompressor = global.CSSCompressor,
    table = CSSCompressor.tables[ 'Hex to Safe Color' ] = {
        "#808080": "gray",
        "#008000": "green",
        "#800000": "maroon",
        "#000080": "navy",
        "#808000": "olive",
        "#ff0000": "red",
        "#c0c0c0": "silver",
        "#008080": "teal",
        "#f00": "red"
    };

CSSCompressor.rule({

    name: 'Hex to Safe Color',
    type: CSSCompressor.RULE_TYPE_VALUE,
    group: 'Color',
    description: "Converts hex codes to short safe 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 safe color name '" + value + "' => '" + match + "'",
                position
            );

            return match;
        }
    }

});