C#

Sayed Sajid wrote:

Can I type cast var type variable to DataSet and return it.

\(
    (?>
        [^()]+ 
        |    \( (?<number>)
        |    \) (?<-number>)
    )*
    (?(number)(?!))
\)

Adam R Harris wrote:

Well anything IS possible

pascal.schwartz wrote:

the search value is fixed in the Delegated function

dinosaurs.Find(EndsWithSaurus));  

// Search predicate returns true if a string ends in "saurus".
    private static bool EndsWithSaurus(String s)
    {
        if ((s.Length > 5) && 
            (s.Substring(s.Length - 6).ToLower() == "saurus"))
        {
            return true;
        }
        else
        {
            return false;
        }
    }

dinosaurs.Find(EndsWith("saurus")); 

public class StringPredicate {
  String stringToMatch;

  public StringPredicate(String toMatch) {
    this.stringToMatch = toMatch;
  }

  public Boolean EndsWith(String s) {
    if ((s.Length > 5) && (s.Substring(s.Length - 6).ToLower() == this.stringToMatch)) {
      return true;
    } else {
      return false;
    }
  }
}

dinosaurs.Find(new StringPredicate("saurus").EndsWith);

public class StringPredicate2 {
  String stringToMatch;

  private StringPredicate2(String toMatch) {
    this.stringToMatch = toMatch;
  }

  private Boolean Match(String s) {
    if ((s.Length > 5) && (s.Substring(s.Length - 6).ToLower() == this.stringToMatch)) {
      return true;
    } else {
      return false;
    }
  }

  public static Predicate<String> EndsWith(String searchTerm) {
    return new StringPredicate2(searchTerm).Match;
  }
}

dinosaurs.Find(StringPredicate2.EndsWith("saurus")); 

string Find(List<string> list, string itemToFind)
{
   return list.Find(item => item == itemToFind);
}