CODEWITHSUNDEEP
c#regexstring
ragu
ragu

Reputation: 165

How I can remove characters between < and > using regex in c#?

I have a string str="<u>rag</u>". Now, i want to get the string "rag" only. How can I get it using regex?

My code is here..

I got the output=""

Thanks in advance..

C# code:

string input="<u>ragu</u>";
string regex = "(\\<.*\\>)";
string output = Regex.Replace(input, regex, "");

Upvotes: 5

Views: 15129

Answers (5)

Anirudha
Anirudha

Reputation: 32827

Using regex for parsing html is not recommended

regex is used for regularly occurring patterns.html is not regular with it's format(except xhtml).For example html files are valid even if you don't have a closing tag!This could break your code.

Use an html parser like htmlagilitypack

WARNING {Don't try this in your code}

To solve your regex problem!

<.*> replaces < followed by 0 to many characters(i.e u>rag</u) till last >

You should replace it with this regex

<.*?>

.* is greedy i.e it would eat as many characters as it matches

.*? is lazy i.e it would eat as less characters as possible

Upvotes: 4

L-Four
L-Four

Reputation: 13551

Your code was almost correct, a small modification makes it work:

 string input = "<u>ragu</u>";
 string regex = @"<.*?\>";
 string output = Regex.Replace(input, regex, string.empty);

Output is 'ragu'.

EDIT: this solution may not be the best. Interesting remark from user the-land-of-devils-srilanka: do not use regex to parse HTML. Indeed, see also RegEx match open tags except XHTML self-contained tags.

Upvotes: 0

Soner G&#246;n&#252;l
Soner G&#246;n&#252;l

Reputation: 98868

You don't need to use regex for that.

string input = "<u>rag</u>".Replace("<u>", "").Replace("</u>", "");
Console.WriteLine(input);

Upvotes: 0

Piotr Stapp
Piotr Stapp

Reputation: 19838

Sure you can:

   string input = "<u>ragu</u>";
    string regex = "(\\<[/]?[a-z]\\>)";
    string output = Regex.Replace(input, regex, "");

Upvotes: 0

vborutenko
vborutenko

Reputation: 4443

const string HTML_TAG_PATTERN = "<.*?>";
Regex.Replace (str, HTML_TAG_PATTERN, string.Empty);

Upvotes: 9

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