CODEWITHSUNDEEP
c#stringreplace
Arthur Castro
Arthur Castro

Reputation: 585

How to dynamically replace custom tags of a string?

I have the following string saved in one of my MSSQL tables:

"Inflicts [regular damage]{mechanic:regular-damage}."

I want to replace everything inside [] for a link pointing to mechanic:regular-damage, like this:

"Inflicts <a href=\"/Mechanics.aspx?Name=regular-damage\">regular damage</a>."

How could I do that? Thanks in advance.

Upvotes: 0

Views: 481

Answers (1)

Sergey Kalinichenko
Sergey Kalinichenko

Reputation: 726559

You need to capture three things - the content of square brackets, the content of curly braces prior to the colon, and the rest of the content of curly braces. You can do it using this regex:

@"\[([^\]]+)\]{([^:]+):([^}]+)}"
//  ^^^^^^^^   ^^^^^^^ ^^^^^^^
//  Group$1    Group$2 Group$3

With these three groups captured, you can format the answer using this replacement template:

@"<a href=""$2.aspx?Name=$3"">$1</a>"

Putting it all together, you get

var s = @"Inflicts [regular damage]{mechanic:regular-damage}.";
var r = Regex.Replace(
    s
,   @"\[([^\]]+)\]{([^:]+):([^}]+)}"
,   @"<a href=""$2.aspx?Name=$3"">$1</a>"
);

This produces

Inflicts <a href="mechanic.aspx?Name=regular-damage">regular damage</a>.

Demo.

Upvotes: 2

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