How to search for a pattern within a string?

Question

I have a string which contains the following output

login;windows
db;sql
audit;failure

how do I check if this string contains the word "audit;failure"?

I have use the following code but was not successful:

 currLine = sr.ReadToEnd();
 string[] splited = Regex.Split(currLine, "~~~~~~~~~~~~~~");
 case1 = splited[0];
 string case1 = "";
 string pattern1 = "audit;failure";
 if (Regex.IsMatch(case1, pattern1)){
 console.writeline("success"!);
}

I must search through the variable case1 and not the string currLine thaks in advance! :D

have you tried string.Contains?

Renatas M.
– Renatas M.

2011-09-23 07:27:35 +00:00
Commented Sep 23, 2011 at 7:27 — Renatas M.
– Renatas M., Commented Sep 23, 2011 at 7:27

Kimtho6 · Accepted Answer · 2011-09-23 07:26:53Z

3

Also make sure that you remove the line string case1 = "";

if(case1.Contains("audit;failure"))
   console.writeline("success"!);

answered Sep 23, 2011 at 7:26

Kimtho6

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Comments

sikender · Accepted Answer · 2011-09-23 07:28:39Z

0

I think you just need to adjust case1 string ........

 string case1 = "";
 currLine = sr.ReadToEnd();
 string[] splited = Regex.Split(currLine, "~~~~~~~~~~~~~~");
 case1 = splited[0];
 string pattern1 = "audit;failure";
 if (Regex.IsMatch(case1, pattern1)){
 console.writeline("success"!);
}

answered Sep 23, 2011 at 7:28

sikender

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Comments

Sai Kalyan Kumar Akshinthala · Accepted Answer · 2011-09-23 07:29:08Z

0

Simply use String.Contains(), use a code like follows

if(sr.Contains("audit;failure")
{

}

answered Sep 23, 2011 at 7:29

Sai Kalyan Kumar Akshinthala

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Comments

Christoph Grimmer · Accepted Answer · 2011-09-23 07:40:52Z

0

One way to do it would be to split this first into the lines.

string[] lines = sr.split (new string[]{ Environment.LineBreak});
foreach(string line in lines){
    string[] parts = line.split(new char[] {';'});
    if(parts[0] == "audit")
        return parts[1];
}
return "not set";

This will return whatever stands behind "audit" and is easily adaptable to return whatever you need. The final return will be triggered if no audit-line was present.

answered Sep 23, 2011 at 7:40

Christoph Grimmer

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