Function parse

libs/echarts/echarts-en.simple.js:3857–3966

* @param {string} colorStr * @param {Array. } out * @return {Array. } * @memberOf module:zrender/util/color

(colorStr, rgbaArr)

 * @memberOf module:zrender/util/color
 */
function parse(colorStr, rgbaArr) {
    if (!colorStr) {
        return;
    }
    rgbaArr = rgbaArr || [];

    var cached = colorCache.get(colorStr);
    if (cached) {
        return copyRgba(rgbaArr, cached);
    }

    // colorStr may be not string
    colorStr = colorStr + '';
    // Remove all whitespace, not compliant, but should just be more accepting.
    var str = colorStr.replace(/ /g, '').toLowerCase();

    // Color keywords (and transparent) lookup.
    if (str in kCSSColorTable) {
        copyRgba(rgbaArr, kCSSColorTable[str]);
        putToCache(colorStr, rgbaArr);
        return rgbaArr;
    }

    // #abc and #abc123 syntax.
    if (str.charAt(0) === '#') {
        if (str.length === 4) {
            var iv = parseInt(str.substr(1), 16);  // TODO(deanm): Stricter parsing.
            if (!(iv >= 0 && iv <= 0xfff)) {
                setRgba(rgbaArr, 0, 0, 0, 1);
                return;  // Covers NaN.
            }
            setRgba(rgbaArr,
                ((iv & 0xf00) >> 4) | ((iv & 0xf00) >> 8),
                (iv & 0xf0) | ((iv & 0xf0) >> 4),
                (iv & 0xf) | ((iv & 0xf) << 4),
                1
            );
            putToCache(colorStr, rgbaArr);
            return rgbaArr;
        }
        else if (str.length === 7) {
            var iv = parseInt(str.substr(1), 16);  // TODO(deanm): Stricter parsing.
            if (!(iv >= 0 && iv <= 0xffffff)) {
                setRgba(rgbaArr, 0, 0, 0, 1);
                return;  // Covers NaN.
            }
            setRgba(rgbaArr,
                (iv & 0xff0000) >> 16,
                (iv & 0xff00) >> 8,
                iv & 0xff,
                1
            );
            putToCache(colorStr, rgbaArr);
            return rgbaArr;
        }

        return;
    }