正則表達式地址提取

Question

我正經歷着最艱難的時光。

我嘗試從以下HTML解析地址“ 100 E Faith Ter”

    <span style="border-color: rgb(0, 0, 255); border-width: 2px; border-style: solid;"                 class="addr">     100 E Faith Ter<br>            <span class="locality">Maitland</span>,                     <span class="region">FL</span>            <span class="postal-code">32751</span>                    </span>l-code">32751</span>            </span>

我正在嘗試將上面的html傳遞給這組代碼，但沒有找到匹配項，即使我在正則表達式測試儀中嘗試並成功，我也不明白為什么。我要瘋了。

    function demoShowMatchClick(addressToPull) {
      var re = new RegExp("\s{5}(.*?<br>)");
      var m = re.exec(addressToPull);
      if (m == null) {
        alert("No match");
      } else {
        var s = "Match at position " + m.index + ":\n";
        for (i = 0; i < m.length; i++) {
          s = s + m[i] + "\n";
        }
        alert(s);
      }
    }

我在這里想念什么？

Answer 1

這為我工作：

var re = new RegExp("\\s{5}(.*?<br>)");

轉義\\ s

如果使用文字regexp語法，則不必擔心字符串轉義：

var re = /\s{5}(.*?<br>)/

Answer 2

you have to make following changes in your function

 function demoShowMatchClick(addressToPull) {
      var re = \s{5}(.*?<br>);
      var m = re.exec(addressToPull);
      if (re.test(addressToPull)) {
        var s = "Match at position " + m.index + ":\n";
        for (i = 0; i < m.length; i++) {
          s = s + m[i] + "\n";
            alert(s);
      } else {

             alert("No match");
        }

      }
    }