I found a parsing bug

[shiyue-code]

The content of yaml is：

test:
    - coords:
      -
      -
      name: "a"

Parsing results of yaml-cpp:

test:
  - coords:
      - ~
      - ~
    name: a

fkyaml result is wrong:

test:
  -
    coords:
      - null
      -
        name: a

[fktn-k]

@shiyue-code
You're right. The current parser seems to improperly handle indentation at the 5th line. Can you open an issue for this?

[fktn-k]

@shiyue-code
It's turned out that parsing a block mapping entry name: "a" after an empty block sequence entry - is causing the unexpected result, which is not being covered by the parser implementation.
So, I've created an issue (#488) and a PR for it. Should be fixed soon.

[fktn-k]

@shiyue-code
The PR has been merged which should resolve this issue.
Could you confirm with the develop HEAD?

[shiyue-code]

Sorry for the long delay in replying. I just tried it, and it's working fine now.

fkyaml:
test:
  -
    coords:
      - null
      - null
    name: a

There’s one more thing I’d like to ask about. Currently, it seems impossible to serialize a string without quotes. Will there be an interface in the future to mark a string for plain text serialization, just like the KEY_PLAIN flag provided by rapidyaml？

[fktn-k]

@shiyue-code
No worries. Thanks for your confirm.

Will there be an interface in the future to mark a string for plain text serialization, just like the KEY_PLAIN flag provided by rapidyaml?

Yes, it is planned. (Thankfully, similar requests have been suggested by some other people: #482, #489)
There will be these options: plain, single quoted, and double quoted.

IIRC, however, the library currently should serialize a string scalar in the plain (unquoted) style with the following exceptions to avoid round-trip issues:

• the scalar contains escaped characters, e.g., \n or \u0000, or
• the scalar can be interpretted as a null, boolean, integer, or float without quotes, e.g., 123 or true.

So, for examples, name will not be quoted by the current implementation.
Isn't that true with your input?

[shiyue-code]

Sorry, I made a mistake，It is indeed as you said. It might be an issue with another library. Thanks a lot.