更换& nbsp;来自javascript dom文本节点 [英] Replacing   from javascript dom text node

问题描述

我正在使用javascript处理xhtml。我通过连接所有子节点的nodeValue获取div节点的文本内容，其中nodeType == Node.TEXT_NODE。

I am processing xhtml using javascript. I am getting the text content for a div node by concatenating the nodeValue of all child nodes where nodeType == Node.TEXT_NODE.

结果字符串有时包含非破坏性太空实体。如何用常规空格字符替换它？

The resulting string sometimes contains a non-breaking space entity. How do I replace this with a regular space character?

我的div看起来像这样......

My div looks like this...

< div>< b> Expires On< / b> 2009年9月30日06:30& nbsp; AM< / div>

以下建议在网络不起作用：

The following suggestions found on the web did not work:

var cleanText = text.replace(/^\xa0*([^\xa0]*)\xa0*$/g,"");


var cleanText = replaceHtmlEntities(text);

var replaceHtmlEntites = (function() {
  var translate_re = /&(nbsp|amp|quot|lt|gt);/g;
  var translate = {
    "nbsp": " ",
    "amp" : "&",
    "quot": "\"",
    "lt"  : "<",
    "gt"  : ">"
  };
  return function(s) {
    return ( s.replace(translate_re, function(match, entity) {
      return translate[entity];
    }) );
  }
})();

有什么建议吗？

推荐答案

这比你制作它容易得多。文本节点将不会包含文字字符串& nbsp;，它将具有代码为160的相应字符。

This is much easier than you're making it. The text node will not have the literal string " " in it, it'll have have the corresponding character with code 160.

function replaceNbsps(str) {
  var re = new RegExp(String.fromCharCode(160), "g");
  return str.replace(re, " ");
}

textNode.nodeValue = replaceNbsps(textNode.nodeValue);

UPDATE

更容易：

textNode.nodeValue = textNode.nodeValue.replace(/\u00a0/g, " ");

这篇关于更换& nbsp;来自javascript dom文本节点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！