swOperation/node_modules/@antv/gui/esm/ui/marker/utils.js

import { isObject, isString, isFunction } from '@antv/util';
/**
 * 解析marker类型
 */
export function parseMarker(icon) {
    var type = 'default';
    if (isObject(icon) && icon instanceof Image)
        type = 'image';
    else if (isFunction(icon))
        type = 'symbol';
    else if (isString(icon)) {
        var dataURLsPattern = new RegExp('data:(image|text)');
        if (icon.match(dataURLsPattern)) {
            type = 'base64';
        }
        else if (/^(https?:\/\/(([a-zA-Z0-9]+-?)+[a-zA-Z0-9]+\.)+[a-zA-Z]+)(:\d+)?(\/.*)?(\?.*)?(#.*)?$/.test(icon)) {
            type = 'url';
        }
        else {
            // 不然就当作symbol string 处理
            type = 'symbol';
        }
    }
    return type;
}
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