private string ReadString()
{
_buffer.Clear();
var escaped = false;
while (true)
{
var next = ReadNextChar();
if (next == -1 || next == '\n')
{
throw new JsonDeserializerException(
JsonDeserializerResource.JSON_OpenString,
_line, _column);
}
else if (escaped)
{
if ((next == '"') || (next == '\\') || (next == '/'))
{
_buffer.Append((char)next);
}
else if (next == 'b')
{
// '\b' backspace
_buffer.Append('\b');
}
else if (next == 'f')
{
// '\f' form feed
_buffer.Append('\f');
}
else if (next == 'n')
{
// '\n' line feed
_buffer.Append('\n');
}
else if (next == 'r')
{
// '\r' carriage return
_buffer.Append('\r');
}
else if (next == 't')
{
// '\t' tab
_buffer.Append('\t');
}
else if (next == 'u')
{
// '\uXXXX' unicode
var unicodeLine = _line;
var unicodeColumn = _column;
_codePointBuffer.Clear();
for (int i = 0; i < 4; ++i)
{
next = ReadNextChar();
if (next == -1)
{
throw new JsonDeserializerException(
JsonDeserializerResource.JSON_InvalidEnd,
unicodeLine,
unicodeColumn);
}
else
{
_codePointBuffer.Append((char)next);
}
}
try
{
var unicodeValue = int.Parse(_codePointBuffer.ToString(), NumberStyles.HexNumber, CultureInfo.InvariantCulture);
_buffer.Append((char)unicodeValue);
}
catch (FormatException ex)
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_InvalidUnicode(_codePointBuffer.ToString()),
ex,
unicodeLine,
unicodeColumn);
}
}
else
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_InvalidSyntaxNotExpected("charactor escape", "\\" + next),
_line,
_column);
}
escaped = false;
}
else if (next == '\\')
{
escaped = true;
}
else if (next == '"')
{
break;
}
else
{
_buffer.Append((char)next);
}
}
return(_buffer.ToString());
}
private static JsonObject DeserializeObject(JsonToken head, JsonBuffer buffer)
{
var dictionary = new Dictionary <string, JsonValue>();
// Loop through each JSON entry in the input object
while (true)
{
var next = buffer.Read();
if (next.Type == JsonTokenType.EOF)
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_InvalidSyntaxExpectation("JSON object", '}'),
next);
}
if (next.Type == JsonTokenType.Colon)
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_InvalidSyntaxNotExpected("JSON object", ':'),
next);
}
else if (next.Type == JsonTokenType.RightCurlyBracket)
{
break;
}
else
{
if (next.Type != JsonTokenType.String)
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_InvalidSyntaxExpectation("JSON object member name", "JSON string"),
next);
}
var memberName = next.Value;
if (dictionary.ContainsKey(memberName))
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_DuplicateObjectMemberName(memberName),
next);
}
next = buffer.Read();
if (next.Type != JsonTokenType.Colon)
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_InvalidSyntaxExpectation("JSON object", ':'),
next);
}
dictionary[memberName] = DeserializeInternal(buffer.Read(), buffer);
next = buffer.Read();
if (next.Type == JsonTokenType.RightCurlyBracket)
{
break;
}
else if (next.Type != JsonTokenType.Comma)
{
throw new JsonDeserializerException(
JsonDeserializerResource.Format_InvalidSyntaxExpectation("JSON object", ',', '}'),
next);
}
}
}
return(new JsonObject(dictionary, head.Line, head.Column));
}