在没有json解析的情况下在jade中输出服务器生成的json对象

Question

我有一个不符合JSON标准的JSON对象,我无法更改对象的结构以使其符合JSON标准.

我需要在Jade模板中的javascript块中间渲染此对象.该对象实际上是一个配置对象,它位于模板的功能块中.

这是对象.

{
  services: [],
  version: "1438276796258",
  country: "default",
  role: "User",
  Zack_Init: function () {

  },
  Zack_Global: function (event) {

  },
  Zack_PostRender: function () {

  }, 
  renderers: ['Renderer', 'NONE']
}

更新 以下是我从JS文件中获取该对象的方法.

function readJSFile(url, filename, callback) {
  fs.readFile(url, "utf-8", function (err, data) {
    if (err) {
      callback(err);
      return;
    }
    try {
      callback(filename, data);
    } catch (exception) {
      callback(exception);
    }
  });
}

当JSON.stringify处理对象时,它会在转换过程中删除三个函数.

我正在添加一个plunker来显示当前解决方案的进度.其中输出如下.唯一剩下的就是删除格式化字符.

{"services":[],"version":"1438276796258","country":"default","role":"User","Zack_Init":function () {\n\n },"Zack_Global":function (event) {\n\n },"Zack_PostRender":function () {\n\n },"renderers":["Renderer","NONE"]}

function convertToString(obj) {
  return JSON.stringify(obj, function(k, v) {
    return (typeof v === 'function' ? ['@@beginFunction@@', v.toString(), '@@endFunction@@'].join('') : v);
  }).replace(/"@@beginFunction@@|@@endFunction@@"/g, '');
}

obj = {
  services: [],
  version: "1438276796258",
  country: "default",
  role: "User",
  Zack_Init: function() {

  },
  Zack_Global: function(event) {

  },
  Zack_PostRender: function() {

  },
  renderers: ['Renderer', 'NONE']
};

$('#test').text(convertToString(obj));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="test"></div>

Answer 1

为了安全地删除换行符，应首先删除“注释”：

function convertToString(obj) {
  return JSON.stringify(obj, function(k, v) {
    return (
      typeof v !== 'function' ? 
        v :
        v.toString().replace(/\/\/.*?$/mg, '')        // removes single line comments
                    .replace(/\/\*[\s\S]*?\*\//g, '') // removes multi-line comments
                    .replace(/[\r\n]/g, '')           // removes new line
    );
  }, 2).replace(/"(function.+)",?$/gm, '$1');         // removes quotes around functions
}

obj = {
  services: [],
  version: "1438276796258",
  country: "default",
  role: "User",
  Zack_Init: function() {
    // comment
    var a = 1;// comment //
    if(a === /*comment */ 3) {//comment
      /* comment
      comment*/
    }
    /*end*/
  },
  Zack_Global: function(event) {
  },
  Zack_PostRender: function() {
  },
  renderers: ['Renderer', 'NONE']
};

$('#result').text(convertToString(obj));

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>
<pre id="result"></pre>