[Json] Re: YAML schema text isn’t superset of JSON schema

[John Carlson <[e-mail]>]

I get that JSON Schema can help validate YAML documents.  I was considering
using YAML schema before my brain farted about leading dashes in YAML, so I
did some hunting.

I filed an issue with the YAML schema site.

John
On Wed, May 20, 2026 at 1:21 PM Karen Etheridge <[e-mail]> wrote:

> Feel free to send a PR, but it has nothing to do with us.
>
> On Wed, May 20, 2026 at 11:16 AM John Carlson <[e-mail]> wrote:
>
>> Perhaps the regular expression should be updated?
>>
>>
>> https://stackoverflow.com/questions/19109912/do-i-need-quotes-for-strings-in-yaml
>>
>>
>> Thanks,
>>
>> John
>>
>> On Wed, May 20, 2026 at 12:53 PM John Carlson <[e-mail]> wrote:
>>
>>> *I found a disconcerting example of YAML schema here:*
>>>
>>> *https://yaml-schema.net/features/types.html
>>> <https://yaml-schema.net/features/types.html>*
>>>
>>>
>>> *Invalid examples:*
>>>
>>> -001 invalid: "value"
>>>
>>> *Error:* [1:1] .: Property name '-001 invalid' does not match pattern
>>> '^[A-Za-z_][A-Za-z0-9_]*$'
>>>
>>>
>>> Many of our property names start with @, # and -, so they wouldn’t match
>>> the regular expression above.  So YAML schema isn’t a superset of JSON
>>> schema, it’s another beast entirely.
>>>
>>> Thanks,
>>>
>>> John
>>>
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