Regex replace a pattern with another pattern

Question

Can anyone help me write a regex have below result to replace bbcode with html tag, for here i want to replace [b][/b] with 

So this:

 "fsdfs [b]abc[/b] dddfs [b]abc[/b] fdsfdsfs [b]abcfsdfs"

Becomes:

 "fsdfs <strong>abc</strong> dddfs <strong>abc</strong> fdsfdsfs [b]abcfsdfs"

Would the following Regex help to solve this problem?

 string result = Regex.Replace(s, @"\[b\](.*?)\[\/b\]", @"\<stront\>(.*?)\<\/strong\>");

<stront\> should probably be <strong\> what ever you try to do. — gdoron
– gdoron, Commented Apr 10, 2013 at 23:19
I understood it, the question was essentially: how can I convert "fsdfs [b]abc[/b] dddfs [b]abc[/b] fdsfdsfs [b]abcfsdfs" to "fsdfs abc dddfs abc fdsfdsfs [b]abcfsdfs" with regex. Putting both the input and output on the same line was an unfortunate choice. — Andrew Clark
– Andrew Clark, Commented Apr 10, 2013 at 23:21
I'm guessing that you only want to replace [B] with [STRONG] where the [B] has a closing [/B] in the original string. This is not a good thing to do in Regex, because regex is not good for parsing HTML. Why? Read this: stackoverflow.com/questions/1732348/… — Russ Clarke
– Russ Clarke, Commented Apr 10, 2013 at 23:21

Andrew Clark · Accepted Answer · 2013-04-10 23:34:31Z

5

The following should work:

string s = "fsdfs [b]abc[/b] dddfs [b]abc[/b] fdsfdsfs [b]abcfsdfs";
string result = Regex.Replace(s, @"\[b\](.*?)\[/b\]", @"<strong>$1</strong>");

Example: http://ideone.com/xwP1EL

answered Apr 10, 2013 at 23:34

Andrew Clark

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1 Comment

Russ Clarke Over a year ago

As a thought experiment, this works very well. In practice though, it's not a good way to manage Html at all; It can't hurt to consider using something like the Html Agility pack instead. stackoverflow.com/questions/6540154/…

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