3
<div class="box notranslate" id="venueHours">
<h5 class="translate">Hours</h5>
<div class="status closed">Currently closed</div>
<div class="hours">
  <div class="timespan">
    <div class="openTime">
      <div class="days">Mon,Tue,Wed,Thu,Sat</div>
      <span class="hours"> 10:00 AM–6:00 PM</span>
    </div>
  </div>
  <div class="timespan">
    <div class="openTime">
      <div class="days">Fri</div>
      <span class="hours"> 10:00 AM–9:00 PM</span></div>
    </div>
    <div class="timespan">
      <div class="openTime">
        <div class="days">Sun</div>
        <span class="hours"> 10:00 AM–5:00 PM</span>
      </div>
    </div>
  </div>
</div>

我正在尝试捕获所有<div class="days">and中的内容<span class="hours">。我想我可以在这个任务中使用正则表达式。但我也想学习任何有趣或专业的方法来捕获这样的特定 div 块。谢谢。

4

3 回答 3

7

除了其他地方提到的 HTML 解析库之外,其他模块也具有 DOM 功能。参见例如Web::Query和 Mojolicious' Mojo::DOM

这是一个使用Mojo::DOMCSS3 选择器的示例:

#!/usr/bin/env perl

use strict;
use warnings;

use 5.10.0;
use Mojo::DOM;

my $dom = Mojo::DOM->new(<<'HTML');
<div class="box notranslate" id="venueHours">
<h5 class="translate">Hours</h5>
<div class="status closed">Currently closed</div>
<div class="hours">
  <div class="timespan">
    <div class="openTime">
      <div class="days">Mon,Tue,Wed,Thu,Sat</div>
      <span class="hours"> 10:00 AM–6:00 PM</span>
    </div>
  </div>
  <div class="timespan">
    <div class="openTime">
      <div class="days">Fri</div>
      <span class="hours"> 10:00 AM–9:00 PM</span></div>
    </div>
    <div class="timespan">
      <div class="openTime">
        <div class="days">Sun</div>
        <span class="hours"> 10:00 AM–5:00 PM</span>
      </div>
    </div>
  </div>
</div>
HTML

say "div days:";
say $_->text for $dom->find('div.days')->each;

say "\nspan hours:";
say $_->text for $dom->find('span.hours')->each;

或等效地:

say "div days:";
say for $dom->find('div.days')->map(sub{$_->text})->each;

say "\nspan hours:";
say for $dom->find('span.hours')->map(sub{$_->text})->each;

输出:

div days:
Mon,Tue,Wed,Thu,Sat
Fri
Sun

span hours:
 10:00 AM–6:00 PM
 10:00 AM–9:00 PM
 10:00 AM–5:00 PM

或者要获取对应天数的时间,可以使用openTimesdiv 的子元素:

say "Open Times:";
say for $dom->find('div.openTime')
            ->map(sub{$_->children->each})
            ->map(sub{$_->text})
            ->each;

输出:

Open Times:
Mon,Tue,Wed,Thu,Sat
 10:00 AM–6:00 PM
Fri
 10:00 AM–9:00 PM
Sun
 10:00 AM–5:00 PM

编辑: Daxim 已将类似的Web::Query代码作为评论发布,因此我将在此处重新发布它以获得更好的格式。我没有尝试过,但我一般相信他的代码。假设 HTML 在一个变量中$html

use Web::Query qw(); 
my $w = Web::Query->new_from_html($html);
say "div days:";
say for $w->find('div.days')->text; 
say "\nspan hours:"; 
say for $w->find('span.hours')->text; 
say "Open Times:"; 
$w->find('div.openTime')->each(sub { say for $_->find('*')->text });
于 2012-05-20T15:14:07.927 回答
3

使用特定于该任务的模块:HTML::ParserHTML::Tree等。

于 2012-05-20T14:39:36.430 回答
-1

匹配状态“当前关闭”的正则表达式:

/<\/h5><div[^>]*>([^<]*)/

匹配天数:

/<div class="days">([^<]*)/

匹配时间:

/<span class="hours">([^<]*)/
于 2012-05-20T14:40:36.693 回答