Question

我有一个很大的HTML文件，我需要使用正则表达式解析一些数据。第一个是餐厅的名称。酒店名称采用以下格式：

更新

<html><head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"></head><body><div class="businessresult clearfix">
        <div class="leftcol">
            <div id="bizTitle0" class="itemheading">
                <a href="https://courses.ischool.berkeley.edu/biz/capannina-san-francisco" id="bizTitleLink0">1.    Capannina
</a>
            </div>
                <div class="itemcategories">
                    Categories: <a href="https://courses.ischool.berkeley.edu/search?mapsize=small&amp;main_places=CA%3ASan_Francisco%3A%3ASOMA%2CCA%3ASan_Francisco%3A%3APacific_Heights%2CCA%3ASan_Francisco%3A%3AMission%2CCA%3ASan_Francisco%3A%3AHaight-Ashbury&amp;places=CA%3ASan_Francisco%3A%3A%5BSOMA%2CMission%2CMarina%2FCow_Hollow%5D&amp;rpp=40&amp;bbox=-122.471809387%2C37.7384127869%2C-122.368125916%2C37.8203616433&amp;attrs=&amp;sortby=category&amp;show_more_search_options=true&amp;cflt=italian&amp;find_loc=san+francisco%2C+ca" rel="italian" class="category" id="cat_result_0_italian">Italian</a>, <a href="https://courses.ischool.berkeley.edu/search?mapsize=small&amp;main_places=CA%3ASan_Francisco%3A%3ASOMA%2CCA%3ASan_Francisco%3A%3APacific_Heights%2CCA%3ASan_Francisco%3A%3AMission%2CCA%3ASan_Francisco%3A%3AHaight-Ashbury&amp;places=CA%3ASan_Francisco%3A%3A%5BSOMA%2CMission%2CMarina%2FCow_Hollow%5D&amp;rpp=40&amp;bbox=-122.471809387%2C37.7384127869%2C-122.368125916%2C37.8203616433&amp;attrs=&amp;sortby=category&amp;show_more_search_options=true&amp;cflt=seafood&amp;find_loc=san+francisco%2C+ca" rel="seafood" class="category" id="cat_result_0_seafood">Seafood</a>
                </div>
                <div class="itemneighborhoods">
                    Neighborhood: <a href="https://courses.ischool.berkeley.edu/search?find_desc=&amp;mapsize=small&amp;main_places=CA%3ASan_Francisco%3A%3ASOMA%2CCA%3ASan_Francisco%3A%3APacific_Heights%2CCA%3ASan_Francisco%3A%3AMission%2CCA%3ASan_Francisco%3A%3AHaight-Ashbury&amp;places=CA%3ASan_Francisco%3A%3A%5BSOMA%2CMission%2CMarina%2FCow_Hollow%5D&amp;attrs=&amp;sortby=category&amp;cflt=italian&amp;show_more_search_options=true&amp;parent_request_id=9536eaa25db61373&amp;find_loc=Marina%2FCow+Hollow%2C+San+Francisco%2C+CA" title="Marina/Cow Hollow, San Francisco, CA" class="location" id="hood_result_0_0">Marina/Cow Hollow</a>
                </div>
        </div>
        <div class="rightcol">
                <div class="rating"><img src="yelp_listings_files/stars_map.html" alt="4 star rating" title="4 star rating" class="stars_4 " height="325" width="83"></div> <a class="reviews" href="https://courses.ischool.berkeley.edu/biz/capannina-san-francisco">270 reviews</a>


            <address>
                1809 Union St<br>San Francisco, CA 94123<br>
                    </address><div class="phone">
                        (415) 409-8001
                    </div>


        </div>

共有40家酒店。我认为.之后有两个空格。我需要列出1 to 40的所有酒店。我尝试过使用：

re.findall("[./0-9]", string_Name)

输出数字。我想得到这个号码和所有的酒店名称。我怎么能这样做？

Blender的回答给出了评级和餐馆列表。这很好，但我想要评级和餐馆名称在另一个变量。

Answer 1

解析HTML：

import re
from bs4 import BeautifulSoup

html = '''
<a href="https://courses.ischool.berkeley.edu/biz/capannina-san-francisco" id="bizTitleLink0">1.    Capannina
</a>
<a href="https://courses.ischool.berkeley.edu/biz/ristorante-parma-san-francisco" id="bizTitleLink4">5.     Ristorante Parma
</a>
'''

soup = BeautifulSoup(html)

for link in soup.find_all('a', text=re.compile(r'^\d')):
    print link.get_text()

输出：

1.    Capannina

5.     Ristorante Parma

Answer 2

你不应该直接在html上运行正则表达式（更喜欢先使用HTML解析器），但试试这个正则表达式：

(\d+)\.\s+([^<]+)

一个或多个数字

一个点

一个或多个空白字符

一个或多个非<个字母

括号（）的存在会创建一个捕获组。捕获组1的内容将是数字。捕获组2的内容将是名称。

如何用Python中的正则表达式写这个？

2 个答案: