nodejs版实现properties后缀文件解析

let readline = require('readline');
let fs = require('fs');
// properties文件路径
let local = 'zh',
    url = local == 'zh' ? /public/messages_zh.properties' : '/public/messages_en.properties';
// Unicode 码转为中文
let toGB2312 = function(str) {
  return unescape(str.replace(/\u/gi, '%u'));
}
// properties文件解析
let parseProps = function() {
  let fRead = fs.createReadStream(url),
      readlineObj = readline.createInterface({
        input: fRead
      });

  readlineObj.on('line', (line) => {
    var tmp = line.toString(),
      index = tmp.indexOf('#');
    // 拆分key、value
    if (index != 0) {
      let strIdx = tmp.indexOf('='),
        key = tmp.substr(0, strIdx),
        value = tmp.substr(strIdx + 1);
      // 将拆分key、value数据存储到node的全局变量global下的local属性
      global.local[key] = local == 'zh' ? toGB2312(value) : value;
    }
  })
// 文件读取结束
  readlineObj.on('close', () => {
    console.log('readline close...  parsed properties!');
  })
}

module.exports = {
  parseProps
}