Javascript到html替换标签不起作用

Question

I have been working on this to replace every code that is shared on post in my website but is not working for me. 我一直在努力替换我网站上发布的所有共享代码但不适合我。 I need everything that appear inside <pre><code></code></pre> to replay all the tags and give it a color using css. 我需要在<pre><code></code></pre>出现的所有内容来重放所有标签并使用css为其赋予颜色。 please if there is any simple way to do this can someone just help me with that? 如果有任何简单的方法可以做到这一点，有人可以帮助我吗？ i will appreciate sample code in jsfiled 我将欣赏jsfiled中的示例代码

here is sample of code that i have been trying to use 这是我一直试图使用的代码示例

function Rep(text){
  text = text.replace(/ /g,"&nbsp;");

  text = text.replace(/<([^\>]+?)>/g, function(match, contents){
      return "<span class='TagColor'>&lt;"+contents+"&gt;</span>";
  }  
  );

  text = text.replace(/\"([^\"]+?)\"/g, function(match, contents){
      return '<span class="StringColor">&quot;'+contents+'&quot;</span>';
    }  
  );
  text = text.replace(/\(([^\)]+?)\)/g, function(match, contents){
      return '<span class="OptionsColor">('+contents+')</span>';
    }  
  );
  text = text.replace(/\n/g, function(match, contents){
      return '<br />';
  }  
  );
  text = text.replace(/\{/g, function(match, contents){
      return '<span class="BracketsColor">&#123;</span>';
  }
  );
  text = text.replace(/\}/g, function(match, contents){
      return '<span class="BracketsColor">&#125;</span>';
  }
  );
  text = text.replace(/\/\*([^\*]+?)\*\//g, function(match, contents){
      return "<span class='CommentColor'>/*"+contents+"*/</span>";
  }  
  );
    text = text.replace(/\[\](.*?)\[\/\]/g, function(match, contents){
      return '<span class="BBColor">'+contents+'</span>';
  }
  );
  return text;

}

//HTML replace
//==================================================
$('code').each(function(){
    var text=$(this).html().replace(/</g,'&lt;');
    var text=text.replace(/>/g,'&gt;');
    $(this).html(text);
});

//google-code-prettify
//==================================================
jQuery(window).load(function(){
    prettyPrint();
});

//Still on Text format                                                                                                                

var app = angular.module('codelab',[],['$interpolateProvider',
    function($interpolateProvider) {
        $interpolateProvider.startSymbol('[[');
        $interpolateProvider.endSymbol(']]');
        }]);

app.directive('ngPrism',['$interpolate', function ($interpolate) {
        "use strict";
        return {
          restrict: 'E',
          template: '<pre id="Mpreditor" class="code code-codes language-javascript"><code ng-transclude="ng-transclude" class="language-javascript"> </code></pre>',
          replace:true,
          transclude:true
        };
    }]);

And here is how codes display in my website 以下是我的网站中代码的显示方式

    <pre id="Mpreditor" class="code code-codes language-javascript">
    <code ng-transclude="ng-transclude" class="language-javascript">    
<span>Hello</span>
You have to include the `%` signs in the `$params`, not in the query:

        $query = "SELECT * FROM tbl WHERE address LIKE ? OR address LIKE ?";
        $params = array("%$var1%", "%$var2%");
        $stmt = $handle-&gt;prepare($query);
        $stmt-&gt;execute($params);
        </code></pre>

Answer 1

Instead of trying to implement it yourself you should try using some library. 您应该尝试使用某些库，而不是尝试自己实现它。

There are certain things to consider before going about it. 在开始之前，有一些事情需要考虑。

Store your actual code in <script> tag, any other tag will force browser to parse the content that may result in modification of the code like HTML 将您的实际代码存储在<script>标记中，任何其他标记都会强制浏览器解析可能导致修改代码的内容，如HTML
Don't append the code in the container as HTML but textNode for the same reason as first point 不要将代码作为HTML附加到容器中，而是将textNode附加到与第一点相同的原因

I have implemented a sample from using this https://highlightjs.org/usage/ library below. 我已经使用下面的https://highlightjs.org/usage/库实现了一个示例。

  <html> <head> <script src="https://code.jquery.com/jquery-2.2.4.min.js" integrity="sha256-BbhdlvQf/xTY9gja0Dq3HiwQF8LaCRTXxZKRutelT44=" crossorigin="anonymous"></script> <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.4.0/styles/default.min.css"> <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.4.0/highlight.min.js"></script> <script class="testCode" type="text/code" lang="sql"> SELECT * FROM tbl WHERE address LIKE ? OR address LIKE ? </script> <script class="testCode" type="text/code" lang="html"> <html> <head> </head> <body> <h1>Hello World!</h1> </body> </html> </script> <script class="testCode" type="text/code" lang="java"> public class Test { public static void main (String[] args) { System.out.println("Hello World!"); } } </script> </head> <body> <div id="codeContainer"> </div> <script> //create code blocks var codes = $("script.testCode"); var container = $("#codeContainer"); codes.each(function () { var code = $(this); var html = code.html(); var language = code.attr("lang"); var codeBlock = $("<pre><code class='" + language + "'></code></pre>"); codeBlock.find("code").text(html); container.append(codeBlock); }); </script> <script> hljs.initHighlightingOnLoad(); </script> </body> </html>

Javascript到html替换标签不起作用

问题描述

1 个解决方案

解决方案1
0 2016-06-10 14:13:32

Javascript到html替换标签不起作用

问题描述

1 个解决方案

解决方案1 0 2016-06-10 14:13:32

解决方案1
0 2016-06-10 14:13:32