/// <summary>
/// Tries to parse a string representing a speed. Assumes kilometers per hour by default, use explicit parsing methods for different behaviour.
/// </summary>
/// <param name="s"></param>
/// <param name="result"></param>
/// <returns></returns>
public static bool TryParse(string s, out Speed result)
{
result = null;
if (s.IsNullOrWhiteSpace())
{
return(false);
}
// try a generic parse first, in this case assume kilometers per hour.
double value;
if (double.TryParse(s, out value))
{ // the value is just a numeric value.
result = new KilometerPerHour(value);
return(true);
}
// try kilometers per hour.
if (KilometerPerHour.TryParse(s, out result))
{ // succes!
return(true);
}
// try miles per hour.
if (MilesPerHour.TryParse(s, out result))
{ // success!
return(true);
}
// try knots.
if (Knots.TryParse(s, out result))
{ // success!
return(true);
}
// try meters per second.
if (MeterPerSecond.TryParse(s, out result))
{ // success!
return(true);
}
return(false);
}
public static bool TryParse(string s, out MilesPerHour result)
{
result = (MilesPerHour)null;
double result1;
if (double.TryParse(s, out result1))
{
result = new MilesPerHour(result1);
return(true);
}
Match match = new Regex("^\\s*(\\d+(?:\\.\\d*)?)\\s*\\s*(mph)\\s*$", RegexOptions.IgnoreCase).Match(s);
if (!match.Success)
{
return(false);
}
result = new MilesPerHour(double.Parse(match.Groups[1].Value, (IFormatProvider)CultureInfo.InvariantCulture));
return(true);
}
/// <summary>
/// Tries to parse a string containing a miles per hour value.
/// </summary>
/// <param name="s"></param>
/// <param name="result"></param>
/// <returns></returns>
public static bool TryParse(string s, out MilesPerHour result)
{
result = null;
double value;
if (double.TryParse(s, out value))
{ // the value is just a numeric value.
result = new MilesPerHour(value);
return true;
}
// do some more parsing work.
Regex regex = new Regex("^" + Constants.RegexDecimalWhiteSpace + MilesPerHour.RegexUnitMilesPerHour + "$", RegexOptions.IgnoreCase);
Match match = regex.Match(s);
if (match.Success)
{
result = new MilesPerHour(double.Parse(match.Groups[1].Value, CultureInfo.InvariantCulture));
return true;
}
return false;
}
/// <summary>
/// Tries to parse a string containing a miles per hour value.
/// </summary>
/// <param name="s"></param>
/// <param name="result"></param>
/// <returns></returns>
public static bool TryParse(string s, out MilesPerHour result)
{
result = null;
double value;
if (double.TryParse(s, out value))
{ // the value is just a numeric value.
result = new MilesPerHour(value);
return(true);
}
// do some more parsing work.
Regex regex = new Regex("^" + Constants.RegexDecimalWhiteSpace + MilesPerHour.RegexUnitMilesPerHour + "$", RegexOptions.IgnoreCase);
Match match = regex.Match(s);
if (match.Success)
{
result = new MilesPerHour(double.Parse(match.Groups[1].Value, CultureInfo.InvariantCulture));
return(true);
}
return(false);
}
