public bool IntervalFor(Option o, out double interval)
{
double x1, x2;
interval = 0;
if (!MinMaxFor(o, out x1, out x2)) { return false; }
string intervalS = (string)nav.Evaluate("string(" + QueryStringFor(o) + "/interval/text())");
if (intervalS.Trim() == String.Empty) { return false; }
try
{
interval = System.Convert.ToDouble(intervalS.Trim());
}
catch (Exception e)
{
return false;
}
return true;
}
/// <summary>
/// Because these might be floats or integers, we'll just return the
/// string verbatim and let the caller figure out what they want to do
/// with it. Easier than messing with generic types.
/// </summary>
/// <param name="o"></param>
/// <param name="min"></param>
/// <param name="max"></param>
/// <returns></returns>
public bool MinMaxFor(Option o, out double min, out double max)
{
min = 0;
max = 0;
string qs = QueryStringFor(o);
string q1 = "string(" + qs + "/min/text())";
string q2 = "string(" + qs + "/max/text())";
string minS = (string)nav.Evaluate(q1);
string maxS = (string)nav.Evaluate(q2);
minS.Trim();
maxS.Trim();
if (minS == String.Empty || maxS == String.Empty)
{
return false;
}
min = System.Convert.ToDouble(minS);
max = System.Convert.ToDouble(maxS);
return true;
}
public bool ValidateFor(Option o, string value, out string message)
{
message = null;
// don't bother validating this at the moment, but in future we'll have to check
// it's enable-able
if (o.Type == OptionType.Bool) { return true; }
else if (o.Type == OptionType.Int || o.Type == OptionType.Float)
{
double min, max;
if (MinMaxFor(o, out min, out max))
{
double dblVal;
try
{
dblVal = System.Convert.ToDouble(value);
}
catch (Exception e)
{
message = String.Format("Unhandled exception");
return false;
}
if (dblVal >= min && dblVal <= max)
{
return true;
}
else {
message = String.Format("Must be between {0} and {1}", min, max);
return false;
}
}
}
return true;
}
public string DescriptionFor(Option o)
{
string query = "string(" + QueryStringFor(o) + "/description/text())";
string result = (string)nav.Evaluate(query);
return result;
}
private static string QueryStringFor(Option o)
{
string queryFmt = "/ini/category[@name=\"{0}\"]/option[@name=\"{1}\"]";
return String.Format(queryFmt, o.Category.Name, o.Name);
}
public static RootContext ReadString(string s)
{
string[] lines = s.Split(new string[] { "\r\n", "\n" }, StringSplitOptions.None);
RootContext root = new RootContext();
Category c = null;
foreach (string line in lines)
{
string thisLine = line.Trim();
if (thisLine == String.Empty) { continue; }
string name, value;
if (ParseCategory(thisLine, out name))
{
c = new Category() { Name = name };
root.Categories.Add(c);
}
else if (ParseValue(thisLine, out name, out value))
{
Option o = new Option()
{
Name = name,
Value = value,
Category = c
};
if (c != null) { c.Options.Add(o); }
else { root.Options.Add(o); }
}
else
{
// do some logging here
}
}
return root;
}
private static string FormatOption(Option o)
{
return String.Format("{0}={1}{2}", o.Name, o.Value, System.Environment.NewLine);
}