public static Amount Parse(string text)
{
if (text == null)
{
return(Amount.Zero);
}
Single value = 1;
// see if text starts with a single value
int pos = text.IndexOf(" ");
if (pos < 0)
{
if (text.EndsWith("g"))
{
if (text.Length > 1)
{
if (char.IsDigit(text[text.Length - 2]))
{
text = text.Replace("g", " g");
pos = text.IndexOf(" ");
}
}
}
if (text.EndsWith("ml"))
{
if (text.Length > 2)
{
if (char.IsDigit(text[text.Length - 3]))
{
text = text.Replace("ml", " ml");
pos = text.IndexOf(" ");
}
}
}
}
if (pos > 0)
{
value = Floats.ParseUnknown(text.Substring(0, pos), -989898);
if (value == -989898)
{
value = 1;
}
else
{
text = text.Substring(pos + 1);
}
}
//string SubAmount = null;
pos = text.IndexOf("(");
if (pos > -1)
{
if (text.LastIndexOf(")") < pos)
{
text = text.Replace("(", "").Replace(")", "");
}
}
//else
//{
// var ext = text.Substring(pos, text.LastIndexOf(")") - pos + 1);
// text = text.Replace(ext, "").Trim();
// SubAmount = ext.Replace("(", "").Replace(")", "");
// if (SubAmount.Length == 0) SubAmount = null;
// if (((Amount)SubAmount).ToString() == "1 ")
// {
// //System.Diagnostics.Debug.WriteLine("Invalid SubAmount: " + SubAmount);
// SubAmount = null;
// }
//}
// text now contains only unit, see if its standard, if not, assign to nonStd
Unit stdUnit = Unit.Parse(text);
if (stdUnit == null)
{
return(new Amount(value, text));
}
return(new Amount(value, stdUnit));
}