正则表达式小脚本(对输入内容进行处理)

发布时间：2020-12-13 20:50:43 所属栏目：百科来源：网络整理

导读：该小脚本实现的是对输入框内容中取出img标签中的src中的内容，然后在原来位置进行替换内容，然后在去除输入内容中的html标签，空格等操作 !DOCTYPE htmlhtml lang="en"head meta charset="UTF-8" title/title script window.onload = function () { var targ

该小脚本实现的是对输入框内容中取出<img>标签中的src中的内容，然后在原来位置进行替换内容，然后在去除输入内容中的html标签，空格等操作

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title></title>
  <script>
    window.onload = function () {
      var target = document.getElementById("div1");
      var but = document.getElementById("but");
      var value;
      but.onclick = function () {
        value = target.innerHTML;
        result = dealText(value);
        alert(result);
      };
    };

    function dealText(msg) {
      var text1 = imageRound(msg);
      var text2 = removeTag(text1);
      var text3 = removeBlank(text2);
      var text4 = changeNBSP(text3);
      return text4;
    }


    function DealNum(num) {
      var content = [];
      for (var i = 0; i < num.length; i++) {
        //
        content.push(defaultSrc(num[i]));
      }
      return content;
    }

    function defaultSrc(src) {
      return ':avator:';
    }

    function returnValue(srcValue) {
      var num = [];
      var pattern = /([^/]+)./;
      var src;
      for (var i = 0; i < srcValue.length; i++) {
        src = pattern.exec(srcValue[i])[1];
        num.push(src);

      }
//      alert(num);
      var source = DealNum(num);
      return source;

    }


    function imageRound(text) {
      var reg2 = /<img.*?&;/gi;
      var s = text.match(reg2);
      var num = returnValue(s);
      var i = 0;
      var content = text.replace(reg2,function () {
        return num[i++];
      });
      return content;
    }

    function removeTag(text) {
      var text1;
      var reg = /<.*?>|<.*?/>/g;
      text1 = text.replace(reg,"");
      return text1;
    }

    function removeBlank(text) {
      var text1;
      var reg = /s+/g;
      text1 = text.replace(reg,"");
      return text1;
    }

    function changeNBSP(text) {
      var text1;
      var reg = / /g;
      var reg1 = /;/g;
      text1 = text.replace(reg,' ');
      text1 = text1.replace(reg1,"");
      return text1;
    }
  </script>
</head>
<body>
<div contenteditable="true" id="div1">abc efg <img src="asdjk/123.jpg"/><span>hi gk</span><img
    src="ahdkh/124.jpg"/>

  <div>lmnop</div>
  q rst uvw
</div>
<button id="but">更新</button>
</body>
</html>

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!