| public static ParseMiniTimespan ( [ text ) : System.TimeSpan | ||
| text | [ | String to parse. |
| return | System.TimeSpan | |
public static TimeSpan ParseMiniTimespan( [NotNull] this string text ) {
if( text == null ) throw new ArgumentNullException( "text" );
text = text.Trim();
bool expectingDigit = true;
TimeSpan result = TimeSpan.Zero;
int digitOffset = 0;
bool hadUnit = false;
for( int i = 0; i < text.Length; i++ ) {
if( expectingDigit ) {
if( text[i] < '0' || text[i] > '9' ) {
throw new FormatException();
}
expectingDigit = false;
} else {
if( text[i] < '0' || text[i] > '9' ) {
hadUnit = true;
string numberString = text.Substring( digitOffset, i - digitOffset );
digitOffset = i + 1;
int number = Int32.Parse( numberString );
switch( Char.ToLower( text[i] ) ) {
case 's':
result += TimeSpan.FromSeconds( number );
break;
case 'm':
result += TimeSpan.FromMinutes( number );
break;
case 'h':
result += TimeSpan.FromHours( number );
break;
case 'd':
result += TimeSpan.FromDays( number );
break;
case 'w':
result += TimeSpan.FromDays( number * 7 );
break;
default:
throw new FormatException();
}
}
}
}
if( !hadUnit ) {
throw new FormatException();
}
return result;
}
