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正則表達(dá)式替換table表格中的樣式與空標(biāo)記(保留rowspan與colspan)

完整測(cè)試代碼

script>
var str='p>';
str='table id="tblSort" cellspacing="0" helvetica="" sans="">tr id="sdf">td style="color:red" class="ok" colspan="8" height="500" rowspan="5">';
str+='td style = "color:blue" style="color:blue" colspan="8" style="color:red" rowspan="5">';
str+='td id="asdfj" class="dbclick">span id="s159015" class="p_check">a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >GET/a> a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >PING/a> a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Trace/a> a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Dig/a>/span>/td>';
str+='td class="sdf" colspan="8" style="color:red" rowspan="5">p style="color:red">jb51.net/p>/td>';
str+='td class="sdf" colspan="8" style="color:red" rowspan="5" width="100">/td>/tr>/table>';

str+='table>tr style = "color:bluefffffffffffffffffffffffffffffffffffffffffff">td style="color:green" class="ok" colspan="8" height="500" rowspan="5">';
str+='tr id="trinfo146798" class="alt">   td id="tdinfo146798" colspan="16">/td>  /tr>';
str+='td id="asdfj" class="dbclick">span id="s159015" class="p_check">a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >GET/a> a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >PING/a> a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Trace/a> a style="text-decoration: none; color: rgb(0,136,255)"  rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" rel="external nofollow" >Dig/a>/span>/td>';
str+='td class="sdf" colspan="8" style="color:red" rowspan="5">p style="color:red">jb51.net/p>/td>';
str+='td class="sdf" colspan="8" style="color:red" rowspan="5" width="100"> font color="#0f0000">122.227.189.106 [中國(guó)浙江寧波電信]/font>br />/td>/tr>/table>';

str+='p>img alt="" src="http://img.jbzj.com/file_images/article/202004/2020041112113912.png" />/p>';
str+='p>選擇安裝然后選擇全新的sql server獨(dú)立安裝/p>';
str+='p>img alt="" src="http://img.jbzj.com/file_images/article/202004/2020041112113913.png" />/p>';

console.log(str);

//去除table的寬度
str=str.replace(/table[^>]*>/ig, "table>");
str=str.replace(/table[^>]*>[\s\S]*?\/table>/gi,function(match,capture){
match=match.replace(/(style|class|id)[\s]*=[\s]*("|')[^>"']*?\2/gi,'');
match=match.replace(/\/?span[^>]*>/gi,'');
match=match.replace(/p [^>]*>|\/p>/gi,'');
match=match.replace(/font[^>]*>|\/font>/gi,'');
return match;
});

//alert(str);
console.log(str);
/script>

原來(lái)的代碼是這樣的

//普通替換
function doRepNormal(s){
var str=s.replace(/p>br type="_moz">\s*?\/p>/ig,"");
str=str.replace(/p>\s*?br type="_moz">\s*?\/p>/ig, "");
str=str.replace(/p>(\s|\nbsp\;| |　|\xc2\xa0)*?\/p>/ig, "");
str=str.replace(/p>\s*?\/p>/ig,"");
str=str.replace(/p>nbsp;\/p>/ig,"");
str=str.replace(/br type="_moz">\nnbsp;\/p>/ig, "/p>");
str=str.replace(/br type="_moz">\s*?\/p>/ig, "/p>");
str=str.replace(/br\s*?\/?>\s*?\/p>/ig, "/p>");
str=str.replace(/br \/>\nnbsp;\/p>/ig, "/p>");
str=str.replace(/br>\nnbsp;\/p>/ig, "/p>");
//表格替換 
str=str.replace(/table[^>]*>/ig, "table>");
str=str.replace(/table[^>]*>[\s\S]*?\/table>/gi,function(match,capture){
match=match.replace(/style[\s]*=[\s]*("|')[^>"']*?\1/gi,'');
match=match.replace(/cl\ass[\s]*=[\s]*("|')[^>"']*?\1/gi,'');
match=match.replace(/id[\s]*=[\s]*("|')[^>"']*?\1/gi,'');
match=match.replace(/font[^>]*>|\/font>/gi,'');
return match;
});
str=str.replace(/td[^>]*>/gi,function(match,capture){
match=match.replace(/style[\s]*=[\s]*("|')[^>"']*?\1/gi,'');
match=match.replace(/cl\ass[\s]*=[\s]*("|')[^>"']*?\1/gi,'');
match=match.replace(/id[\s]*=[\s]*("|')[^>"']*?\1/gi,'');
return match;
});
return str;
}

后臺(tái)修改成這樣的

str=str.replace(/table[^>]*>/ig, "table>");
str=str.replace(/table[^>]*>[\s\S]*?\/table>/gi,function(match,capture){
match=match.replace(/(style|class|id)[\s]*=[\s]*("|')[^>"']*?\2/gi,'');
match=match.replace(/\/?span[^>]*>/gi,'');
match=match.replace(/p [^>]*>|\/p>/gi,'');
match=match.replace(/font[^>]*>|\/font>/gi,'');
return match;
});

經(jīng)過(guò)測(cè)試發(fā)現(xiàn)chrome中正常，但在ie8與ie7中有bug無(wú)法實(shí)現(xiàn)class與id的替換，文檔聲明!DOCTYPE html>都會(huì)影響一些結(jié)果，真是漲了見(jiàn)識(shí)

正好看到別的人分享的先留存一份，后續(xù)更新

用正則表達(dá)式取出table中的所有行（支持嵌套table）

此是通過(guò)csdn詢問(wèn)得高人之手寫(xiě)的。
謝謝gzdiablo

表達(dá)式:

tr[^>]*>(?:(?:\s|\S)*?(?=table|/tr>)(?(table)table[^>]*>(?:\s|\S)*?(?:/table>|(?:(?:table[^>]*>(?:\s|\S)*?/table>(?:\s|\S)*?)*?/table>))(?:\s|\S)*?|))*/tr>

一條表達(dá)式就可以獲取你想要的
寫(xiě)得好辛苦
測(cè)試:

table width="300" border="1" cellspacing="0" cellpadding="0">
 tr>
 td>nbsp;/td>
 td>table width="100%" border="1" cellspacing="0" cellpadding="0">
  tr>
  td>nbsp;/td>
  /tr>

 /table>
  table width="100%" border="1" cellspacing="0" cellpadding="0">
  tr>
   td>nbsp;/td>
  /tr>
  /table>/td>
 td>nbsp;/td>
 /tr>
 tr>
 td>nbsp;/td>
 td>nbsp;/td>
 td>table width="100%" border="1" cellspacing="0" cellpadding="0">

  tr>
  td>nbsp;/td>
  /tr>
 /table>/td>
 /tr>
 tr>
 td>table width="100%" border="1" cellspacing="0" cellpadding="0">
  tr>
  td>nbsp;/td>
  /tr>

 /table>/td>
 td>nbsp;/td>
 td>nbsp;/td>
 /tr>
/table>

-------------------獲取3個(gè)match

============================================match1
tr>
    td>nbsp;/td>
    td>table width="100%" border="1" cellspacing="0" cellpadding="0">
      tr>
        td>nbsp;/td>
        /tr>

    /table>
      table width="100%" border="1" cellspacing="0" cellpadding="0">
        tr>
          td>nbsp;/td>
        /tr>
      /table>/td>
    td>nbsp;/td>
/tr>
==============================================match2
tr>
    td>nbsp;/td>
    td>nbsp;/td>
    td>table width="100%" border="1" cellspacing="0" cellpadding="0">

      tr>
        td>nbsp;/td>
        /tr>
    /table>/td>
/tr>
==============================================match3
tr>
    td>table width="100%" border="1" cellspacing="0" cellpadding="0">
      tr>
        td>nbsp;/td>
        /tr>

    /table>/td>
    td>nbsp;/td>
    td>nbsp;/td>
/tr>

正則表達(dá)式匹配html標(biāo)簽table

首先，要匹配任意內(nèi)容“.”是不行的，因?yàn)椴黄ヅ洹癨n”，取不到想要的內(nèi)容，所以有了如下表達(dá)式：
[\s\S]*

當(dāng)然，你也可以用 “[\d\D]*”、“[\w\W]*” 來(lái)表示。

現(xiàn)在我們來(lái)匹配一個(gè)html標(biāo)簽，匹配table如下：

table.*?>[\s\S]*\/table>
或
table.*?>[\s\S]*?\/table>

以上兩個(gè)表達(dá)式，一個(gè)加了"?"和一個(gè)卻不加“?”，那么這有什么區(qū)別呢？
我們知道“?”在正則表達(dá)式里是一個(gè)通配符：匹配前面的子表達(dá)式零次或一次，或指明一個(gè)非貪婪限定符。

在這里，通過(guò)測(cè)試，我們得出這樣的結(jié)論：在不加“?”的情況下，在匹配下面一段內(nèi)容的時(shí)候：

table>這是第一個(gè)table/table>
我不是table里的內(nèi)容
table>這是第二個(gè)table/table>
我也不是table里的內(nèi)容
table>這是第三個(gè)table/table>

會(huì)把以table>開(kāi)始，/table>結(jié)束的內(nèi)容都匹配出來(lái)

加了“?”之后，只匹配第n個(gè)匹配的內(nèi)容

完整測(cè)試代碼腳本之家小編提供

script>
var str='table>這是第一個(gè)table/table>';
str+='我不是table里的內(nèi)容';
str+='table>這是第二個(gè)table/table>';
str+='我也不是table里的內(nèi)容';
str+='table>這是第三個(gè)table/table>';

var reg1 = /table.*?>[\s\S]*\/table>/gi;
var res1 = str.match(reg1);
console.log(res1) 
var reg2 = /table.*?>[\s\S]*?\/table>/gi;
var res2 = str.match(reg2);
console.log(res2) 
/script>

效果圖

以上就是正則表達(dá)式替換table表格中的樣式與空標(biāo)記(保留rowspan與colspan)的詳細(xì)內(nèi)容，更多關(guān)于正則表達(dá)式替換table表格的資料請(qǐng)關(guān)注腳本之家其它相關(guān)文章！

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