javascript - 使用正则表达式从巨大的表html中查找某些td值

我需要为大块的html写一个正则表达式。

<td width=342 align=left style='width:256pt'>&nbsp;HF Acciones Lideres - Clase G</td><td width=24  align=center style='width:18pt'>ARS   </td><td width=24  align=center style='width:18pt'>Arg   </td><td width=24  align=center style='width:18pt'>Lar   </td><td width=60 align=center style='width:45pt'>08/10/14</td><td width=88 align=right style='width:64pt'>1738.383</td><td width=83 align=right style='width:62pt'>51,427,906</td><td width=83 align=right style='width:62pt'>89,401,382</td>

仅在第一个td为HF Acciones Lideres时，我才需要获取日期（08/10/14）和值（1738.383）。我已经编写了这段代码，但是在第一个td不是HF Acciones Lideres的情况下，它会重复一些值-ClaseG。

请参阅（注意：regexr不允许保存完整的html，所以我将放在这里）：
http://regexr.com/3alo4

完整的html
http://fondosargentina.org.ar/scripts/cf_EstadisticaDiariaAntDetalle.asp?Fecha=08/10/14&Clasi_Id=00001

最佳答案

您可以使用jQuery搜索方法找到这些值：

$(document).ready(function() {
        var $tr = $("td:contains('Lideres - Clase G')").parent();
        var date = "";
        var total = "";
        $tr.children("td").each(function(i) {
          if (i==4) date = $(this).text();
          if (i==5) total = $(this).text();
        });
        alert("date="+ date + ", total=" +total);
      });

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<table border=1 cellpadding=0 cellspacing=0 width=728 style="font-family: Arial; font-size: 8 pt; position: absolute; left: 25; table-layout:fixed; width:546">
      <tr height=17>
        <td width=342 align=left style='width:256pt'>&nbsp;1810 Renta Variable Argentina</td>
        <td width=24  align=center style='width:18pt'>ARS   </td>
        <td width=24  align=center style='width:18pt'>Arg   </td>
        <td width=24  align=center style='width:18pt'>Lar   </td>
        <td width=60 align=center style='width:45pt'>08/10/14</td>
        <td width=88 align=right style='width:64pt'>13905.228</td>
        <td width=83 align=right style='width:62pt'>2,866,017</td>
        <td width=83 align=right style='width:62pt'>39,852,620</td>
      </tr>
      <tr height=17>
        <td width=342 align=left style='width:256pt'>&nbsp;1822 Raices Valores Negociables</td>
        <td width=24  align=center style='width:18pt'>ARS   </td>
        <td width=24  align=center style='width:18pt'>Arg   </td>
        <td width=24  align=center style='width:18pt'>Lar   </td>
        <td width=60 align=center style='width:45pt'>08/10/14</td>
        <td width=88 align=right style='width:64pt'>139941.375</td>
        <td width=83 align=right style='width:62pt'>297,644</td>
        <td width=83 align=right style='width:62pt'>41,652,710</td>
      </tr>
      <tr height=17>
        <td width=342 align=left style='width:256pt'>&nbsp;AL Renta Variable - Clase A</td>
        <td width=24  align=center style='width:18pt'>ARS   </td>
        <td width=24  align=center style='width:18pt'>Arg   </td>
        <td width=24  align=center style='width:18pt'>Lar   </td>
        <td width=60 align=center style='width:45pt'>08/10/14</td>
        <td width=88 align=right style='width:64pt'>5047.820</td>
        <td width=83 align=right style='width:62pt'>277,968</td>
        <td width=83 align=right style='width:62pt'>1,403,133</td>
      </tr>
      <tr height=17>
        <td width=342 align=left style='width:256pt'>&nbsp;AL Renta Variable - Clase B</td>
        <td width=24  align=center style='width:18pt'>ARS   </td>
        <td width=24  align=center style='width:18pt'>Arg   </td>
        <td width=24  align=center style='width:18pt'>Lar   </td>
        <td width=60 align=center style='width:45pt'>08/10/14</td>
        <td width=88 align=right style='width:64pt'>5704.307</td>
        <td width=83 align=right style='width:62pt'>3,655,663</td>
        <td width=83 align=right style='width:62pt'>20,853,021</td>
      </tr>
      <tr height=17>
        <td width=342 align=left style='width:256pt'>&nbsp;AL Renta Variable II - Clase A</td>
        <td width=24  align=center style='width:18pt'>ARS   </td>
        <td width=24  align=center style='width:18pt'>Arg   </td>
        <td width=24  align=center style='width:18pt'>Lar   </td>
        <td width=60 align=center style='width:45pt'>03/09/12</td>
        <td width=88 align=right style='width:64pt'>1604.331</td>
        <td width=83 align=right style='width:62pt'>8,658</td>
        <td width=83 align=right style='width:62pt'>13,890</td>
      </tr>
      <tr height=17>
        <td width=342 align=left style='width:256pt'>HF Acciones Lideres - Clase G</td>
        <td width=24  align=center style='width:18pt'>ARS   </td>
        <td width=24  align=center style='width:18pt'>Arg   </td>
        <td width=24  align=center style='width:18pt'>Lar   </td>
        <td width=60 align=center style='width:45pt'>08/10/14</td>
        <td width=88 align=right style='width:64pt'>1738.383</td>
        <td width=83 align=right style='width:62pt'>51,427,906</td>
        <td width=83 align=right style='width:62pt'>89,401,382</td>
      </tr>
    </table>