YAML.parse() incorrectly splits on `---` inside values

[arc-source-coder]

What version of Bun is running?

1.3.5+1e86cebd7

What platform is your computer?

Microsoft Windows NT 10.0.26100.0 x64

What steps can reproduce the bug?

Bun splits the output into two objects when unquoted --- is present regardless of position.

const text = `
name: some-text---
description: Lorem ipsum dolor sit amet, consectetur adipiscing elit.
`
let parsed = Bun.YAML.parse(text);
console.log(parsed);

What is the expected behavior?

--- that is part of a scalar value should not be treated as a break.

js-yaml parses it correctly and outputs:

{
  name: "some-text---",
  description: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
}

What do you see instead?

The Bun.YAML parser outputs:

[
  {
    name: "some-text",
  }, {
    description: "Lorem ipsum dolor sit amet, consectetur adipiscing elit.",
  }
]

Additional information

No response

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🔗 Related PRs

#22924 - Fix YAML.parse to throw SyntaxError instead of BuildMessage [merged]
#23491 - fix(yaml): double-quoted strings with '...' incorrectly trigger document end error [merged]
#23516 - fix(YAML.stringify): check for more indicators at the beginning of strings [merged]
#25443 - fix(yaml): quote strings ending with colons [merged]

👤 Suggested Assignees

• robobun
• dylan-conway

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