0514-86177077
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完整测试代码
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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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)" href="http://www.17ce.com/site/dns/20200408_3875c5d0799211eab8bc2bbb7b33a12c:1.html#s159015" 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 [中国浙江宁波电信]/font>br />/td>/tr>/table>'; str+='p>img alt="" src="//img.jbzj.com/file_images/article/202004/2020041112113912.png" />/p>'; str+='p>选择安装然后选择全新的sql server独立安装/p>'; str+='p>img alt="" src="//img.jbzj.com/file_images/article/202004/2020041112113913.png" />/p>'; console.log(str); //去除table的宽度 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>
原来的代码是这样的
//普通替换 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>"); //表格替换 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; }
后台修改成这样的
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; });
经过测试发现chrome中正常,但在ie8与ie7中有bug无法实现class与id的替换,文档声明!DOCTYPE html>都会影响一些结果,真是涨了见识
正好看到别的人分享的先留存一份,后续更新
用正则表达式取出table中的所有行(支持嵌套table)
此是通过csdn询问得高人之手写的。 谢谢gzdiablo
表达式:
tr[^>]*>(?:(?:\s|\S)*?(?=table|/tr>)(?(table)table[^>]*>(?:\s|\S)*?(?:/table>|(?:(?:table[^>]*>(?:\s|\S)*?/table>(?:\s|\S)*?)*?/table>))(?:\s|\S)*?|))*/tr>
一条表达式就可以获取你想要的 写得好辛苦 测试:
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>
-------------------获取3个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>
============================================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>
正则表达式匹配html标签table
首先,要匹配任意内容“.”是不行的,因为不匹配“\n”,取不到想要的内容,所以有了如下表达式: [\s\S]*
当然,你也可以用 “[\d\D]*”、“[\w\W]*” 来表示。
现在我们来匹配一个html标签,匹配table如下:
table.*?>[\s\S]*\/table> 或 table.*?>[\s\S]*?\/table>
以上两个表达式,一个加了"?"和一个却不加“?”,那么这有什么区别呢? 我们知道“?”在正则表达式里是一个通配符:匹配前面的子表达式零次或一次,或指明一个非贪婪限定符。
在这里,通过测试,我们得出这样的结论:在不加“?”的情况下,在匹配下面一段内容的时候:
table>这是第一个table/table> 我不是table里的内容 table>这是第二个table/table> 我也不是table里的内容 table>这是第三个table/table>
会把以table>开始,/table>结束的内容都匹配出来
加了“?”之后,只匹配第n个匹配的内容
完整测试代码脚本之家小编提供
script> var str='table>这是第一个table/table>'; str+='我不是table里的内容'; str+='table>这是第二个table/table>'; str+='我也不是table里的内容'; str+='table>这是第三个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>
效果图
以上就是正则表达式替换table表格中的样式与空标记(保留rowspan与colspan)的详细内容,更多关于正则表达式替换table表格的资料请关注脚本之家其它相关文章!
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