fails to parse yaml values with double quote " inside

[pomali]

Describe the bug
when linting yaml file, value containing double quote " does not get recognized as string

To Reproduce

1. Given this OpenAPI document
   a.yaml

openapi: 3.0.3
info:
  title: A
  version: 0.1.0
  description: "A"
paths:
  /api/device/apns/:
    get:
      responses:
        '200':
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/PaginatedAPNSDeviceList'
          description: ''
components:
  schemas:
    PaginatedAPNSDeviceList:
      type: object
      required:
      - results
      properties:
        next:
          type: string
          nullable: true
          format: uri
          example: http://api.example.org/accounts/?cursor=cD00ODY%3D"

and .spectral.yaml

extends: ["spectral:oas"]

3. Run this CLI command spectral lint a.yaml
4. See error

...
 27:20    error  oas3-valid-schema-example    "example" property must match format "uri"                     components.schemas.PaginatedAPNSDeviceList.properties.next.example

this is caused by " in example. (same arror can happen with oas3-valid-media-example)

Expected behavior
other yaml libraries (eg. pyyaml) recognize not-leading double quote and treat the value like a string, so it should not fail the validation (since format: uri gets downgraded to type: string, which should match, and if format: uri is recognized it should be valid anyway)

[daniel-white]

is the quote intended to be part of the URL string value or part of the yaml syntax?

[pomali]

Pyyaml recognizes it as part of URL string value

[ponelat]

Thanks @pomali do you know if (and which) part of the YAML specification non-leading quotes may be part of?

[pomali]

Thanks @pomali do you know if (and which) part of the YAML specification non-leading quotes may be part of?

I'm not even sure if it's part of specification, but seems reasonable that linter should be able to read such malformed yaml, or throw some better error.

My guess would be that it's interpreted as Flow Plain Style so double-quote " has no special meaning there, but I'm just casual yaml user.