@xmini/qs/parse.js

qs

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.parse = parse;
// import copy from './copy';

/**
 * parse 解析url
 *
 * 有些恶心的第三方App，不判断当前的url参数，
 * 就直接在域名路径后加自己的参数，导致URL不规范，无法常规处理了
 * https://m.iqianggou.com/?from=singlemessage&isappinstalled=0#bargain?id=646156&platform=5
 *
 * @export
 */
const searchReg = /([^&=?#]+)=([^&#]+)/g;
const urlReg = /\/+.*\?/;
const arrayReg = /(.+)\[\]$/;

function decode(input) {
  return decodeURIComponent(input.replace(/\+/g, ' '));
}

function parse(url = '', key) {
  if (!url) return;
  const params = {};
  let match;
  let name;
  let value;
  let isArray; // 处理不符合 search 参数格式的情况

  url = url[0] !== '?' ? '?' + url : url; // 处理异常参数，如多个 ?

  url = url.replace(/\?/g, '&').replace('&', '?');
  /* eslint prefer-destructuring: 0 */

  while (match = searchReg.exec(url)) {
    name = decode(match[1]);
    value = decode(match[2]);
    isArray = name.match(arrayReg); // 处理参数为url这种情况

    if (urlReg.test(value)) {
      params[name] = url.substr(url.indexOf(value));
      break;
    }

    if (isArray) {
      name = isArray[1];
      params[name] = params[name] || [];
      params[name].push(value);
    } else {
      params[name] = value;
    }
  }

  const result = key ? params[key] : params;
  return result;
} // console.log(parse('id=xx&c=xx&q=5%E6%9C%88'));