UnEscape JSON string

[thomh 0]

I am using the TJsonTextWriter to write my JSON string. Looking at the code I see this method which uses the WriteEscapedString method to escape the string.

 

procedure TJsonTextWriter.WriteValue(const Value: string);
begin
  inherited WriteValue(Value);
  if (Length(Value) = 0) and (EmptyValueHandling = TJsonEmptyValueHandling.Null) then
    Exit;
  WriteEscapedString(Value, True);
end;

 

But I cannot find an UnEscape JSON string method? Is there one?

 

Thanks,
Thom
 

[0x8000FFFF 22]

  var JSONValue := TJSONObject.ParseJSONValue('"multi\nline"');
  Writeln(JSONValue.Value);
  JSONValue.Free;

yields

Quote

multi

line

 

[thomh 0]

On 5/14/2021 at 10:06 AM, 0x8000FFFF said:

  var JSONValue := TJSONObject.ParseJSONValue('"multi\nline"');
  Writeln(JSONValue.Value);
  JSONValue.Free;

yields

 

Thank you.

 

BTW, is there a method that you can use to unescape the whole JSON string and not just a certain value?

 

// Thom

 

[0x8000FFFF 22]

What do you mean, what is the difference between 'the whole JSON string' and 'a certaing value'? Can you name some examples?