/// <summary>
/// Parse the token stream.
/// </summary>
public void Parse()
{
m_obj = ParseObject();
// Reset for future calculations.
m_tokenStream.Reset();
}
/// <summary>
/// Opens a new file to be read. Overwrite the current
/// JSON object.
/// </summary>
public void Open(string filename)
{
StreamReader reader = new StreamReader(filename);
IronJSONLexer lexer;
IronJSONTokenStream stream;
IronJSONParser parser;
lexer = new IronJSONLexer(reader.ReadToEnd());
stream = lexer.GenerateTokenStream();
parser = new IronJSONParser(stream);
parser.Parse();
m_obj = parser.Obj;
m_cd = new IronJSONValue(m_obj);
m_curPath = new ArrayList();
reader.Close();
}
/// <summary>
/// Constructs an empty JSON object.
/// </summary>
public JSONManager()
{
m_obj = new IronJSONObject();
m_cd = new IronJSONValue(m_obj);
m_curPath = new ArrayList();
}
/// <summary>
/// Constructor.
/// </summary>
/// <param name="o">
/// A <see cref="IronJSONObject"/>
/// </param>
public IronJSONValue(IronJSONObject o)
: this(ValueType.Object)
{
m_data.objct = o;
}
public IronJSONParser(IronJSONTokenStream tokenStream)
{
m_tokenStream = tokenStream;
m_obj = null;
}
/// <summary>
/// Parse an object.
/// </summary>
private IronJSONObject ParseObject()
{
IronJSONObject obj = new IronJSONObject();
VerifyToken(m_tokenStream.CurrentToken,
new TokenType[]{TokenType.LeftCurlyBracket});
// Skip the '{'
if (!m_tokenStream.ToNextToken())
throw ParseError("expected '}'");
while (!m_tokenStream.AtEnd() &&
m_tokenStream.CurrentToken.Type == TokenType.String)
{
// Save the string.
string id = m_tokenStream.CurrentToken.String;
m_tokenStream.ToNextToken(); // Skip the id.
// Skip the ':'
VerifyToken(m_tokenStream.CurrentToken, new TokenType[]{TokenType.Colon});
if (!m_tokenStream.ToNextToken())
throw ParseError("expected ':'");
// Parse the value.
obj[id] = ParseValue();
// Skip the ',' or '}'. Error if it's not either.
VerifyToken(m_tokenStream.CurrentToken,
new TokenType[]{TokenType.Comma, TokenType.RightCurlyBracket});
if (!m_tokenStream.ToNextToken())
break;
// If what we skipped what a '}', break.
if (m_tokenStream.PreviousToken.Type == TokenType.RightCurlyBracket)
break;
}
return obj;
}
