/// <summary>
/// 读取字符串并存入 dict
/// </summary>
/// <param name="str"></param>
/// <param name="offset"></param>
/// <param name="line"></param>
/// <param name="column"></param>
private void ReadObject(SimpleReader reader)
{
const char head = '{';
const char tail = '}';
if (reader.Char() != head)
{
throw new ParseException("异常调用，类型不符", reader);
}
while (true)
{
reader.JumpSpace();
var key = ReadStringValue(reader);
if (key == null)
{
break;
}
reader.JumpSpace();
if (reader.Char() != ':')
{
throw new ParseException("ReadObject 找不到分隔符", reader);
}
var valueType = TestValueType(reader);
string valueStr;
switch (valueType)
{
case ObjectTypes.Array:
valueStr = ReadPairValue(reader, '[', ']');
break;
case ObjectTypes.Object:
valueStr = ReadPairValue(reader, '{', '}');
break;
case ObjectTypes.String:
valueStr = '"' + ReadStringValue(reader) + '"';
break;
case ObjectTypes.Boolean:
valueStr = ReadBooleanValue(reader);
break;
case ObjectTypes.Number:
valueStr = ReadNumberValue(reader);
break;
default:
throw new NotImplementedException();
}
_dict.Add(key, valueStr);
if (reader.Peek(true) == null || reader.Char() == tail)
{
break;
}
}
}
/// <summary>
/// 读取由 "{" 与 "}" 包围的字符串。
/// 要求光标被放在开头的 "{" 位置上。
/// 读取结果将包含开头的 "{" 与结尾的 "}"。
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
private void ReadArray(SimpleReader reader)
{
const char head = '[';
const char tail = ']';
if (reader.Peek(false) == null || reader.Char() != head)
{
throw new ParseException("非法调用 ReadArrayValue", reader);
}
var key = 0;
while (true)
{
var valueType = TestValueType(reader);
string valueStr;
switch (valueType)
{
case ObjectTypes.Array:
valueStr = ReadPairValue(reader, '[', ']');
break;
case ObjectTypes.Object:
valueStr = ReadPairValue(reader, '{', '}');
break;
case ObjectTypes.String:
valueStr = '"' + ReadStringValue(reader) + '"';
break;
case ObjectTypes.Number:
valueStr = ReadNumberValue(reader);
break;
default:
throw new NotImplementedException();
}
_dict.Add(key.ToString(), valueStr);
key++;
if (reader.Peek(true) == null)
{
break;
}
var c = reader.Char();
if (c == ',')
{
continue;
}
if (c == tail)
{
break;
}
throw new ParseException(" ReadArrayValue 解析异常。", reader);
}
}
/// <summary>
/// 读取由双引号["]包围的字符串内容，开头必须有 ["] 并且结果的 ["] 也将被跳过,读取内容不包含双引号
/// 要求当标必须被放在 开头的["] 上面
/// </summary>
/// <param name="reader"></param>
/// <returns></returns>
private string ReadStringValue(SimpleReader reader)
{
if (reader.Char() != '"')
{
throw new ParseException("非法调用 ReadStringValue。", reader);
}
var key = new StringBuilder();
char?last = null;
foreach (var c in reader)
{
switch (c)
{
case '\"':
if (last == '\\')
{
key.Append('\"');
break;
}
return(key.ToString());
case '\n':
throw new ParseException("ReadStringValue 解析异常。", reader);
case '\r':
throw new ParseException("ReadStringValue 解析异常。", reader);
default:
key.Append(c);
break;
}
last = c;
}
throw new ParseException("ReadStringValue 解析异常。", reader);
}