REExtract
Extracts all fields from a string that match a certain regex. Will convert to desired type through a standard TypeConverter.
Source
public static T[ ] REExtract<T>( this string s, string regex )
{
TypeConverter tc = TypeDescriptor.GetConverter( typeof( T ) );
if ( !tc.CanConvertFrom( typeof( string ) ) )
{
throw new ArgumentException( "Type does not have a TypeConverter from string", "T" );
}
if ( !string.IsNullOrEmpty( s ) )
{
return
Regex.Matches( s, regex )
.Cast<Match>( )
.Select( f => f.ToString( ) )
.Select( f => ( T )tc.ConvertFrom( f ) )
.ToArray( );
}
else
return new T[ 0 ];
}Example
public static int[ ] ExtractInts( this string s )
{
return s.REExtract<int>( @"\d+" );
}
int[] a = "Some primes: 2, 5, 11, and 17".ExtractInts();
// a == { 2, 5, 11, 17 }