Regex BB tags with C#

See more:

C#

.NET

Hi,

I want to replace the following things:

[video=youtube]https://www.youtube.com/watch?v=14zIhlfeUjE[/video]

TO

<iframe width="560" height="315" src="//www.youtube.com/embed/14zIhlfeUjE" frameborder="0" allowfullscreen=""></iframe>

And for tags

[b]Test[/b]

TO

[b]Test[/b]

What I have tried:

I didn't try much cause I do not understand REGEX at all, after reading several articles and tutorials. And the internet couldn't help me out with Regex with C#