// Pixels
public static Parsed <Pixels> TryParsePixels(this string str)
{
double value;
if (Double.TryParse(str.StripSuffix("px"), out value))
{
return(Parsed.Success(new Pixels(value), str));
}
return(Parsed.Failure <Pixels>(str));
}
public static Parsed <int> TryParseInt(string str)
{
int value;
if (int.TryParse(str, out value))
{
return(Parsed.Success(value, str));
}
return(Parsed.Failure <int>(str));
}
public static Parsed <double> TryParseDouble(string str)
{
double value;
if (double.TryParse(str, out value))
{
return(Parsed.Success(value, str));
}
return(Parsed.Failure <double>(str));
}
public static Parsed <float> TryParseFloat(string str)
{
float value;
if (float.TryParse(str, out value))
{
return(Parsed.Success(value, str));
}
return(Parsed.Failure <float>(str));
}
static Parsed <bool> TryParseBoolean(string str)
{
bool value;
if (Boolean.TryParse(str, out value))
{
return(Parsed.Success(value, str));
}
return(Parsed.Failure <bool>(str));
}
static Parsed <TimeSpan> TryParseTimeSpan(string str)
{
double value;
if (double.TryParse(str.StripSuffix("s"), out value))
{
return(Parsed.Success(TimeSpan.FromSeconds(value), str));
}
return(Parsed.Failure <TimeSpan>(str));
}
static Parsed <T> TryParseEnum <T>(string str)
where T : struct
{
T value;
if (Enum.TryParse(str, out value) && Enum.IsDefined(typeof(T), value))
{
return(Parsed.Success(value, str));
}
return(Parsed.Failure <T>(str));
}
// Percentages
public static Parsed <Percentages> TryParsePercentages(this string str)
{
if (!str.EndsWith("%"))
{
return(ScalarParser.TryParseDouble(str).Select(d => new Percentages(d)));
}
double value;
if (double.TryParse(str.StripSuffix("%"), out value))
{
return(Parsed.Success(new Percentages(value), str));
}
return(Parsed.Failure <Percentages>(str));
}