CODEWITHSUNDEEP
c#regexstring
cagounai
cagounai

Reputation: 155

C# best way how to parse this String

i have following problem: I have text like this (more than 200 lines):

dsadsadsads(-123|12)sdakodskoakosdakodsadsayxvmyxcmxcym,§§¨§¨§(-43|23)sdadasdas

I want get numbers from text like this:

-123|12

-43|23

Numbers are always in ( ).

What is the fast way, how to get this number. Is possible use some regex? How?

Or brute force foor loop?

Thank you for your reply.

Upvotes: 0

Views: 79

Answers (1)

M.kazem Akhgary
M.kazem Akhgary

Reputation: 19149

You can use Regex for this purpose. 

string str = "dsadsadsads(-123|12)sdakodskoakosdakodsadsayxvmyxcmxcym,§§¨§¨§(-43|23)sdadasdas";
var matches = Regex.Matches(str, @"\(([-+]?\d+\|[-+]?\d+)\)");

foreach (var match in matches)
{
    Console.WriteLine(match);
}

Performance test

string str = "dsadsadsads(-123|12)sdakodskoakosdakodsadsayxvmyxcmxcym,§§¨§¨§(-43|23)sdadasdas";

StringBuilder bigstr = new StringBuilder();

for (int i = 0; i < 1000; i++)
{
    bigstr.Append(str + "\n");
}

str = bigstr.ToString();

Regex regex = new Regex(@"\(([-+]?\d+\|[-+]?\d+)\)");

Stopwatch w = Stopwatch.StartNew();
var matches = regex.Matches(str);
var count = matches.Count;
w.Stop();

Console.WriteLine(w.Elapsed);

Output in my console. about 0.001 seconds.

Upvotes: 1

Related Questions