static dynamic Build(JsonReader reader)
#endif
{
var token = reader.ReadToken();
switch (token.Type)
{
case TokenType.SpecialChar:
reader.PutBack(token);
if (token.Value == "{")
return BuildObject(reader);
else if (token.Value == "[")
return BuildList(reader);
throw new SemanticException(new[] { "'{'", "'['" }, token.Value, reader.Position);
case TokenType.Number:
if (token.Value.Contains(".") || token.Value.Length > 18)
return decimal.Parse(token.Value, System.Globalization.CultureInfo.InvariantCulture);
if (token.Value.Length >= 10)
{
int smallResult;
if (int.TryParse(token.Value, out smallResult))
return smallResult;
return Int64.Parse(token.Value);
}
return int.Parse(token.Value);
case TokenType.KeyWord:
switch (token.Value)
{
case "null":
return null;
case "false":
case "true":
return token.Value == "true";
}
throw new SemanticException(new[] { "Boolean", "Number", "String", "Array", "Object" }, token.Value, reader.Position);
default:
return token.Value;
}
}
static object Build(JsonReader reader)
static IList<dynamic> BuildList(JsonReader reader)
static IList<object> BuildList(JsonReader reader)
#endif
{
var values = new List<dynamic>();
var nextToken = reader.ReadToken();
if (nextToken.Type != TokenType.SpecialChar || nextToken.Value != "[")
throw new SemanticException("'['", nextToken.Value, reader.Position);
nextToken = reader.ReadToken();
if (nextToken.Type != TokenType.SpecialChar || nextToken.Value != "]")
{
reader.PutBack(nextToken);
do
{
values.Add(Build(reader));
nextToken = reader.ReadToken();
} while (nextToken.Type == TokenType.SpecialChar && nextToken.Value == ",");
if (nextToken.Type != TokenType.SpecialChar || nextToken.Value != "]")
throw new SemanticException("']'", nextToken.Value, reader.Position);
}
return values;
}
static dynamic BuildObject(JsonReader reader)
#endif
{
#if NET35
var obj = new Dictionary<string, object>();
#else
var obj = new ExpandoObject() as IDictionary<string, object>;
#endif
var nextToken = reader.ReadToken();
if (nextToken.Type != TokenType.SpecialChar || nextToken.Value != "{")
throw new SemanticException("{", nextToken.Value, reader.Position);
nextToken = reader.ReadToken();
if (nextToken.Type != TokenType.SpecialChar || nextToken.Value != "}")
{
reader.PutBack(nextToken);
do
{
var property = reader.ReadToken();
if (property.Type != TokenType.String)
throw new SemanticException("String", property.Type.ToString(), reader.Position);
nextToken = reader.ReadToken();
if (nextToken.Type != TokenType.SpecialChar || nextToken.Value != ":")
throw new SemanticException("':'", nextToken.Value, reader.Position);
var value = JsonBuilder.Build(reader);
obj.Add(property.Value, value);
nextToken = reader.ReadToken();
} while (nextToken.Type == TokenType.SpecialChar && nextToken.Value == ",");
if (nextToken.Type != TokenType.SpecialChar || nextToken.Value != "}")
throw new SemanticException(new[] { "'}'", "','" }, nextToken.Value, reader.Position);
}
return obj;
}
