/// <summary>Reads a JSON array from the given parser.</summary>
private static JSObject ReadObject(CodeLexer parser)
{
// Kick it off:
char current = parser.Peek();
// The read key:
string key = "";
// And one for the value:
StringBuilder value = new StringBuilder();
bool valueString = false;
bool inString = false;
char stringChar = '\0';
// Is the current letter in "escaped" mode?
bool escaped = false;
JSObject result = null;
while (current != StringReader.NULL)
{
if (inString)
{
if (escaped)
{
if (current == '\\' || current == '"')
{
value.Append(current);
}
else if (current == 'n')
{
value.Append("\n");
}
else if (current == 'r')
{
value.Append("\r");
}
else if (current == 't')
{
value.Append("\t");
}
else if (current == 'u')
{
// 4 character code:
// Get the hex code (+1 because we only peeked the u):
string hexCode = parser.Input.Substring(parser.Position + 1, 4);
// Parse hex:
uint charCode = uint.Parse(hexCode, System.Globalization.NumberStyles.HexNumber);
// Append that character:
value.Append((char)charCode);
// Read it off:
parser.Position += 4;
}
escaped = false;
}
else if (current == stringChar)
{
// Exiting the string:
parser.Literal = false;
inString = false;
}
else if (current == '\\')
{
// Escape:
escaped = true;
}
else
{
value.Append(current);
}
}
else if (current == '"' || current == '\'')
{
// Track which it was:
stringChar = current;
// Entering the string:
parser.Literal = true;
inString = true;
valueString = true;
}
else if (current == '{' || current == '[')
{
if (result != null)
{
// Reading an object:
JSObject arr = ReadObject(parser);
if (key != "")
{
result[key] = arr;
}
else
{
result.push(arr);
}
// Use up the key:
key = "";
}
else if (current == '[')
{
result = new JSIndexedArray();
}
else
{
result = new JSArray();
}
}
else if (current == '}' || current == ']' || current == ',')
{
// Complete the value if we need to.
string val = value.ToString();
value.Length = 0;
if (!valueString && val == "null")
{
val = null;
}
valueString = false;
if (key != "")
{
result[key] = new JSValue(val);
key = "";
}
else if (val != "")
{
result.push(val);
}
if (current != ',')
{
break;
}
}
else if (current == ':')
{
// We just read a key:
key = value.ToString();
value.Length = 0;
valueString = false;
}
else
{
// Add to value:
value.Append(current);
}
// Read it off:
parser.Read();
// Peek next one:
current = parser.Peek();
}
if (value.Length != 0)
{
if (result == null)
{
// Get the value string:
string val = value.ToString();
if (!valueString && val == "null")
{
// It was the word "null".
return(null);
}
result = new JSValue(val);
}
else
{
// Malformed - missing closing bracket.
throw new Exception("JSON syntax error: Closing bracket missing.");
}
}
return(result);
}