Zulip Chat Archive
Stream: metaprogramming / tactics
Topic: json strings with newlines
Alex J. Best (Nov 30 2022 at 21:20):
Does anyone have any idea why the following breaks,
import data.json
#eval json.parse "hi\n"
#eval json.parse "{\"hi\":\"ho\n\"}"
or better yet how easy it would be to fix?
I believe this is valid JSON, but not accepted by lean.
@Eric Wieser @Edward Ayers perhaps?
Eric Wieser (Nov 30 2022 at 21:20):
Those both look like invalid json to me
Alex J. Best (Nov 30 2022 at 21:22):
I asked https://jsonlint.com/ and it thought it was fine. to be clear the escaping is just for lean, surely a string in json can have a line break in?
Alex J. Best (Nov 30 2022 at 21:22):
Ah but maybe json demands they are escaped
Eric Wieser (Nov 30 2022 at 21:23):
The second would be valid with \\n
Alex J. Best (Nov 30 2022 at 21:25):
Ok all is well then I guess!
Trebor Huang (Dec 01 2022 at 05:49):
Mandatory xkcd: https://xkcd.com/1638/
Last updated: Dec 20 2023 at 11:08 UTC