private CtfPropertyBag GetPropertyBag(string str, int start, int stop)
{
Debug.Assert(str[start] == '{');
CtfPropertyBag result = new CtfPropertyBag();
foreach (string rawStatement in EnumerateStatements(str, start + 1, stop))
{
string statement = StripComments(rawStatement);
int i = statement.IndexOf('=');
if (i <= 0)
{
continue;
}
if (statement[i - 1] == ':')
{
string name = statement.Substring(0, i - 1).Trim();
int open = statement.IndexOf('{', i + 1);
int close = FindCloseBrace(statement, open);
if (close > stop || close == -1)
{
string[] structNameParts = statement.Substring(i + 1).Trim().Split(' ');
if (structNameParts.Length != 2 || structNameParts[0] != "struct")
{
throw new InvalidOperationException();
}
CtfUnresolvedType unresolved = new CtfUnresolvedType(structNameParts[1]);
result.AddValue(name, unresolved);
}
else
{
CtfField[] fields = ParseStructFields(statement, open, close).ToArray();
result.AddValue(name, new CtfStruct(null, fields));
}
}
else
{
string name = statement.Substring(0, i).Trim();
string value = statement.Substring(i + 1).Trim();
if (value.Length > 2 && value[0] == '\"' && value[value.Length - 1] == '\"')
{
value = value.Substring(1, value.Length - 2);
}
result.AddValue(name, value);
}
}
return(result);
}
private CtfMetadataType ParseOneType(string statement, out int index)
{
CtfMetadataType type = null;
Match match;
if ((match = s_integer.Match(statement)).Success)
{
Group group = match.Groups[1];
CtfPropertyBag bag = GetPropertyBag(group.ToString());
type = new CtfInteger(bag);
index = group.Index + group.Length;
}
else if ((match = s_struct.Match(statement)).Success)
{
var group = match.Groups[1];
if (group.ToString() != "{")
{
throw new InvalidOperationException();
}
int open = group.Index;
int close = FindCloseBrace(statement, open);
CtfField[] fields = ParseStructFields(statement, open, close).ToArray();
type = new CtfStruct(null, fields);
index = close + 1;
}
else if ((match = s_float.Match(statement)).Success)
{
int open = match.Index + match.Length - 1;
int close = FindCloseBrace(statement, open);
CtfPropertyBag bag = GetPropertyBag(statement, open, close);
type = new CtfFloat(bag);
index = close + 1;
}
else if ((match = s_variant.Match(statement)).Success)
{
string switchVariable = match.Groups[1].ToString();
int open = statement.IndexOf('{');
int close = FindCloseBrace(statement, open);
if (close == -1)
{
throw new InvalidOperationException();
}
CtfField[] fields = ParseStructFields(statement, open, close).ToArray();
type = new CtfVariant(switchVariable, fields);
index = close + 1;
}
else if ((match = s_variable.Match(statement)).Success)
{
var typeGroup = match.Groups[1];
string typeName = typeGroup.ToString().Trim();
if (typeName == "string")
{
type = new CtfString();
}
else
{
type = new CtfUnresolvedType(typeName);
}
index = typeGroup.Index + typeGroup.Length;
}
else if ((match = s_enum.Match(statement)).Success)
{
var groups = match.Groups;
string typeName = groups[1].ToString().Trim();
int open = statement.IndexOf('{');
int close = FindCloseBrace(statement, open);
if (close == -1)
{
throw new InvalidOperationException();
}
CtfNamedRange[] ranges = ParseNamedRanges(statement, open + 1, close).ToArray();
// TODO: Can enums just be an inline defined integer?
type = new CtfEnum(new CtfUnresolvedType(typeName), ranges);
index = close + 1;
}
else
{
// TODO: Floating point
index = 0;
return(null);
}
return(type);
}
