YAML: invalid highlighting of characters within strings
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bug
language-definitions
- Dominant language
- JavaScript
- Stars
- 13k
- Forks
- 1.4k
- Avg merge
- 15h 36m
- Merged PRs (30d)
- 3
Description
Information
- Language: YAML
- Plugins: None
Description
It seems like PrismJS highlights sequence (hyphen and square brackets) and mapping (colon and curly brackets) characters within strings.
Code snippet
The code being highlighted incorrectly.
hyphens: a-b-c
square-brackets: a [b] c
colon: hello:world
curly-brackets: a {b} c
Screenshot:

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First steps
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- Fork the repository and make your change on a branch.
- Open a pull request that references the issue number.
Research direction
Reproduce the YAML snippet in PrismJS and inspect the YAML syntax-highlighting grammar or entry point. Compare how hyphens, brackets, colons, and braces are treated inside the shown values; done means those characters in strings are no longer highlighted as YAML sequence or mapping syntax.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- javascript, yaml
- Domain
- tooling
- Issue type
- Bug
- Difficulty
- 3/5
- Estimated time
- 1-2 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 35/100