public static IArgument TypeName(CharSource source, ref char chr)
{
// Arrive on seeing '/', get collections of names separated by '.'
if (!source.Advance(out chr))
{
throw new FinalCharacterException("Expected type name");
}
var str = new StringBuilder();
while (true)
{
str.Append(source.ReadName(ref chr));
if (chr != '.')
{
return(new TypeNameLiteral()
{
Value = str.ToString()
});
}
str.Append('.');
// We now expect more
if (!source.Advance(out chr))
{
throw new FinalCharacterException("Expected further type name");
}
if (!CharSource.IsNameStart(chr))
{
throw new InvalidCharacterException("Expected name start character: found " + chr);
}
}
}
public static IArgument Default(CharSource source, ref char chr)
{
if (CharSource.IsNameStart(chr))
{
var name = source.ReadName(ref chr);
if (bool.TryParse(name, out var bval))
{
return(new BooleanLiteral()
{
Value = bval
});
}
return(new NameArgument()
{
Value = name
});
}
else if (CharSource.IsNumberStart(chr))
{
return(Number(source, ref chr));
}
throw new InvalidCharacterException($"Not a valid name or number start: '{chr}'");
}