public void Parse(SourceSpan source, XElement element, PredefinedFormulaContext context)
{
var name = element.AttributeValue("name");
var result = context[name];
Debug.Assert(result != null);
this.Result = result;
}
public object?Parse(string value, PredefinedFormulaContext context)
{
if (value == null)
{
return(null);
}
var formula = context[value];
Debug.Assert(formula != null);
return(formula);
}
private static object?[] GetArgumentValues(IEnumerable <XElement> args, PredefinedFormulaContext context)
{
var result = new List <object?>();
foreach (var curArg in args)
{
var typeName = curArg.AttributeValue("type");
var value = curArg.AttributeValue("value");
var parser = argValueParsers[typeName];
result.Add(parser.Parse(value, context));
}
return(result.ToArray());
}
public void Parse(SourceSpan source, XElement element, PredefinedFormulaContext context)
{
var methodName = element.AttributeValue("name");
var objectName = element.AttributeValue("formula");
var args = element.Elements("Argument");
var formula = context[objectName];
Debug.Assert(formula != null);
var argTypes = GetArgumentTypes(args);
var argValues = GetArgumentValues(args, context);
var helper = new TexFormulaHelper(formula, source);
var methodInvocation = typeof(TexFormulaHelper).GetMethod(methodName, argTypes) !;
methodInvocation.Invoke(helper, argValues);
}
private TexFormula?ParseFormula(SourceSpan source, XElement formulaElement)
{
var context = new PredefinedFormulaContext();
foreach (var element in formulaElement.Elements())
{
var parser = actionParsers[element.Name.ToString()];
if (parser == null)
{
continue;
}
parser.Parse(source, element, context);
if (parser is ReturnParser)
{
return(((ReturnParser)parser).Result);
}
}
return(null);
}
public void Parse(SourceSpan source, XElement element, PredefinedFormulaContext context)
{
var name = element.AttributeValue("name");
var args = element.Elements("Argument");
var argValues = GetArgumentValues(args, context);
Debug.Assert(argValues.Length == 1 || argValues.Length == 0);
TexFormula formula;
if (argValues.Length == 1)
{
var parser = new TexFormulaParser();
formula = parser.Parse((string)argValues[0] !); // Nullable TODO: This might need null checking
}
else
{
formula = new TexFormula {
Source = source
};
}
context.AddFormula(name, formula);
}
public object Parse(string value, PredefinedFormulaContext context)
{
return(Enum.Parse(this.enumType, value));
}
public object?Parse(string value, PredefinedFormulaContext context)
{
return(typeof(Color).GetField(value) !.GetValue(null));
}
public object Parse(string value, PredefinedFormulaContext context)
{
return(value);
}
public object Parse(string value, PredefinedFormulaContext context)
{
return(int.Parse(value, CultureInfo.InvariantCulture));
}
public object Parse(string value, PredefinedFormulaContext context)
{
Debug.Assert(value.Length == 1);
return(value[0]);
}