no apparent way to turn off folding for long flow mappings

[SIGSTACKFAULT]

Describe the bug
I want to have a list of mappings, each one on it's own line.
the library puts long ones on multiple lines and there appears to be no way to control this.

To Reproduce

const yaml = require("yaml")

const doc = new yaml.Document({
    foo: []
});

let node1 = doc.createNode({a:1,b:2,c:3})
let node2 = doc.createNode({d:1,e:2,f:3,g:4,h:8,i:9,j:10,k:11,l:12,m:13})

node1.flow = node2.flow = true

doc.addIn(["foo"], node1)
doc.addIn(["foo"], node2)

console.log(doc.toString());

observe output:

$ node yaml-bug.js
foo:
  - { a: 1, b: 2, c: 3 }
  - {
      d: 1,
      e: 2,
      f: 3,
      g: 4,
      h: 8,
      i: 9,
      j: 10,
      k: 11,
      l: 12,
      m: 13
    }

Expected behaviour
i don't expect this to be the default but there should be a way to do it

$ node yaml-bug.js
foo:
  - { a: 1, b: 2, c: 3 }
  - { d: 1, e: 2, f: 3, g: 4, h: 8, i: 9, j: 10, k: 11, l: 12, m: 13 }

Versions

• Node: 19.6.0
• yaml: 2.2.1

[eemeli]

It's pretty ugly, but setting this value will get you the results you're looking for:

import { YAMLMap } from 'yaml'

Object.getPrototypeOf(YAMLMap).maxFlowStringSingleLineLength = 2000 // or any other large number

As no-one before now has asked for this, I'm going to hold off on making this more ergonomic until there's a bit more interest. In other words, if this is functionality that you'd use if it was more easily available, please add a comment on this issue.

[SIGSTACKFAULT]

that works for now!

when this gets fixed properly i'll use the proper solution :3

[eemeli]

I just realised that this is a duplicate of #421.