YAMLFIX_LINE_LENGTH not respected

[ltog]

Description

I use YAMLFIX_LINE_LENGTH and would expect that lines will not get longer than this number of characters. But they get longer anyway.

Steps to reproduce

1. Create a file with this content and save it as long.yaml:

---
asdf:
  - asdfasdfasdfss: "{{ asdfasdfasdfasdfasdfasdfasdf }}/{{ (asdfasdfasdfasdfasdfasdfasdf + '/' + asdfasdfasdfasdfasdfasdfsdfk) | asdfasdfasdfasdfasdf('gwdgxd') }}"

2. Run YAMLFIX_LINE_LENGTH="120" yamlfix long.yaml

Current behavior

The content of long.yaml will be:

---
asdf:
  - asdfasdfasdfss: "{{ asdfasdfasdfasdfasdfasdfasdf }}/{{ (asdfasdfasdfasdfasdfasdfasdf + '/' + asdfasdfasdfasdfasdfasdfsdfk)\
      \ | asdfasdfasdfasdfasdf('gwdgxd') }}"

Desired behavior

The output should be shorter, e.g.

---
asdf:
  - asdfasdfasdfss: "{{ asdfasdfasdfasdfasdfasdfasdf }}/{{ (asdfasdfasdfasdfasdfasdfasdf + '/'\
      \ + asdfasdfasdfasdfasdfasdfsdfk) | asdfasdfasdfasdfasdf('gwdgxd') }}"

If this is actually the desired behaviour, this should be written more clearly in the documentation.

Environment

------------------------------------------------------------------
     yamlfix: 1.14.0
     Python: 3.10.12
     Platform: Linux-5.15.0-83-generic-x86_64-with-glibc2.35
------------------------------------------------------------------

[lyz-code]

Hi @ltog, thanks for taking the time to open another issue. I agree that the desired behaviour is the one you expect. I'm not sure what is the algorithm ruyaml uses to split long lines, probably is something to look upstream. As with the other issue, if you could submit a PR it would be awesome