如何使用正则表达式在Matlab中解析HTML标签？ [英] How to parse HTML tags in Matlab using regexp?

问题描述

我时间不够，特意想要提取一个如下所示的字符串。问题是标签不是< a>



code> s =< em style =font-size：medium> 5,888< / em>

如何在matlab中提取出5,888？

解决方案

谢谢你们的帮助。我基本上是想通过Matlab获得美国的人口。以为我会分享我的代码，尽管不是最优雅的。可能帮助一些灵魂。 ：）

  county ='morris'; 
 state ='ks'; 
 
 county = strrep（county，''，'+'）; 
 str = sprintf（'https://www.google.com/search?&q=population+%s+%s',county,state）; 
 s = urlread（str）; 
 pop = regexp（s，'< em>> *>（。*？）< / em>'，'tokens'）; 
 pop = char（pop {：}）; 
 pop = strrep（pop，'，'，''）; 
 pop = str2num（pop）; 
  

I'm short on time and specifically wanted to extract a string like the one below. Problem is the tag isn't of the form <a> data </a>.

Given,

s = <em style="font-size:medium"> 5,888 </em>

how to extract out just 5,888 in matlab?

解决方案

Thanks folks for your help. I'm basically trying to get the population of a US county on Matlab. Thought I'l share my code, though not the most elegant. Might help some soul. :)

county = 'morris';
state = 'ks';

county = strrep(county, ' ' , '+');
str = sprintf('https://www.google.com/search?&q=population+%s+%s',county,state);
s = urlread(str);
pop = regexp(s,'<em[^>]*>(.*?)</em>', 'tokens');
pop = char(pop{:});
pop = strrep(pop, ',' , '');
pop = str2num(pop);

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