dem2terrain/src/progressbar/format.js

使用 GDAL 制作 DEM 栅格的地形瓦片

/**
 * 
 * @param {string} str 
 * @param {Array<any>} params 
 * @returns 
 */
function format(str, params = []) {
    const pattern = /{([\s\S])*?}/gim;
    let index = 0;
    let params_index = 0;
    return str.replace(pattern, (match, tuple, offset) => {
        index = offset + match.length;
        params_index += 1;

        // 异常格式处理，对于列表和对象类型的param，对外抛出异常
        if (
            Array.isArray(params[params_index - 1]) ||
            typeof params[params_index - 1] === "object"
        ) {
            throw TypeError(params[params_index - 1] + "不能为对象类型");
        }

        if (match.length > 2) {
            match = match.slice(1, match.length - 1);
            return eval('params[params_index-1].' + match);;
        } else {
            return params[params_index - 1];
        }
    });
}
module.exports = format;