在没有JSON解析的情况下在Jade中输出服务器生成的JSON对象 [英] Output a server generated json object in jade without json parse

问题描述

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

I have a JSON object that does not conform to JSON standards, and I cannot change the structure of the object to make it adhere to JSON standards.

我需要将此对象呈现在Jade模板的javascript块中间.该对象实际上是在模板的功能块中使用的配置对象.

I need to make this object render in the middle of a javascript block in a Jade template. The object is actually a configuration object that is going in a function block in the template.

这里是对象.

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

  },
  Zack_Global: function (event) {

  },
  Zack_PostRender: function () {

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

更新 这是我从JS文件中获取该对象的方式.

UPDATE Here is how I am getting that object from a JS file.

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，它将在转换过程中删除这三个函数.

When JSON.stringify processes the object it drops the three functions in the conversion process.

我正在添加一个插件以显示当前解决方案的进度.输出以下内容.剩下的唯一事情就是删除格式字符.

I am adding a plunker to show the progress of the current solution. Which outputs the below. The only thing left is to remove the formatting characters.

{"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>

推荐答案

为了安全地删除换行符，应先删除'comments':

In order to remove new line characters safely, 'comments' should be removed first:

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>

这篇关于在没有JSON解析的情况下在Jade中输出服务器生成的JSON对象的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！