Use of multiple Regular Expression in C# web crawler

Question

I am making a web crawler which fetch data from different sites. And for this purpose I use regular expression, it is to much lengthy to write regular expression for each site separately. I want to combine those regular expression and want to work on them.how should i combine them. Please tell me how I'll combine below regular expressions. Example:

Job Title = @"<h2>(.*?)</h2>"

Job Title:</td>.*?<td.*?>(.*?)</td>

Title/Post(.*?)<span.*?>(.*?)</span>

Job Title:</strong>.*?<td.*?>(.*?)</td>

Hint: [***YOU CANNOT PARSE HTML WITH A REGEX.***](http://stackoverflow.com/a/1732454/119527) Just. Don't. Even. Consider. It. — Jonathon Reinhart, May 21 '14 at 07:57

score 0 · Accepted Answer · answered May 21 '14 at 07:51

0

You can use OR-operator |

(pattern1)|(pattern2)|(...)

answered May 21 '14 at 07:51

user2316116

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thank you. I know this one but is there any other possibility to solve it ? – Bilal Choudhary May 21 '14 at 07:54
What's wrong with |-operator? If you want to combine different patterns for different texts you need to use OR (either pattern1 OR pattern2 OR ...). This is the only way to combine them. – user2316116 May 21 '14 at 08:00
Thank you I will do through this way – Bilal Choudhary May 21 '14 at 08:04

Use of multiple Regular Expression in C# web crawler

1 Answers1