First pass at style: cookie

We need to replace the not-very-functional style: form when
it comes to cookies.

Author: handrews

src/oas.md

@@ -1151,8 +1151,8 @@ Serializing with `schema` is NOT RECOMMENDED for `in: "cookie"` parameters, `in:
 
 | Field Name | Type | Description |
 | ---- | :----: | ---- |
-| <a name="parameter-style"></a>style | `string` | Describes how the parameter value will be serialized depending on the type of the parameter value. Default values (based on value of `in`): for `"query"` - `"form"`; for `"path"` - `"simple"`; for `"header"` - `"simple"`; for `"cookie"` - `"form"`. |
-| <a name="parameter-explode"></a>explode | `boolean` | When this is true, parameter values of type `array` or `object` generate separate parameters for each value of the array or key-value pair of the map. For other types of parameters this field has no effect. When [`style`](#parameter-style) is `"form"`, the default value is `true`. For all other styles, the default value is `false`. Note that despite `false` being the default for `deepObject`, the combination of `false` with `deepObject` is undefined. |
+| <a name="parameter-style"></a>style | `string` | Describes how the parameter value will be serialized depending on the type of the parameter value. Default values (based on value of `in`): for `"query"` - `"form"`; for `"path"` - `"simple"`; for `"header"` - `"simple"`; for `"cookie"` - `"form"` (for compatibility reasons; note that `style: "cookie"` SHOULD be used with `in: "cookie"`). |
+| <a name="parameter-explode"></a>explode | `boolean` | When this is true, parameter values of type `array` or `object` generate separate parameters for each value of the array or key-value pair of the map. For other types of parameters this field has no effect. When [`style`](#parameter-style) is `"form"` or `"cookie"`, the default value is `true`. For all other styles, the default value is `false`. Note that despite `false` being the default for `deepObject`, the combination of `false` with `deepObject` is undefined. |
 | <a name="parameter-allow-reserved"></a>allowReserved | `boolean` | When this is true, parameter values are serialized using reserved expansion, as defined by [RFC6570](https://datatracker.ietf.org/doc/html/rfc6570#section-3.2.3), which allows [RFC3986's reserved character set](https://datatracker.ietf.org/doc/html/rfc3986#section-2.2), as well as percent-encoded triples, to pass through unchanged, while still percent-encoding all other disallowed characters (including `%` outside of percent-encoded triples). Applications are still responsible for percent-encoding reserved characters that are not allowed by the rules of the `in` destination or media type, or are [not allowed in the path by this specification](#path-templating); see Appendices [C](#appendix-c-using-rfc6570-based-serialization) and [E](#appendix-e-percent-encoding-and-form-media-types) for details. The default value is `false`. |
 | <a name="parameter-schema"></a>schema | [Schema Object](#schema-object) | The schema defining the type used for the parameter. |
 
@@ -1182,6 +1182,7 @@ In order to support common ways of serializing simple parameters, a set of `styl
 | spaceDelimited | `array`, `object` | `query` | Space separated array values or object properties and values. This option replaces `collectionFormat` equal to `ssv` from OpenAPI 2.0. |
 | pipeDelimited | `array`, `object` | `query` | Pipe separated array values or object properties and values. This option replaces `collectionFormat` equal to `pipes` from OpenAPI 2.0. |
 | deepObject | `object` | `query` | Allows objects with scalar properties to be represented using form parameters. The representation of array or object properties is not defined. |
+| cookie | `primitive`, `array`, `object` | `cookie` | Analogous to `form`, but following [[RFC6265]] `Cookie` syntax rules, meaning that name-value pairs are separated by a semicolon followed by a single space (e.g. `n1=v1; n2=v2`), and no percent-encoding or other escaping is applied; data values that require any sort of escaping MUST be provided in escaped form. |
 
 See [Appendix E](#appendix-e-percent-encoding-and-form-media-types) for a discussion of percent-encoding, including when delimiters need to be percent-encoded and options for handling collisions with percent-encoded data.
 
@@ -1238,6 +1239,8 @@ The following table shows serialized examples, as would be shown with the `seria
 | pipeDelimited | true | _n/a_ | _n/a_ | _n/a_ | _n/a_ |
 | deepObject | false | _n/a_ | _n/a_ | _n/a_ | _n/a_ |
 | deepObject | true | _n/a_ | _n/a_ | _n/a_ | <span style="white-space: nowrap;">color%5BR%5D=100&color%5BG%5D=200&color%5BB%5D=150</span> |
+| cookie | false | <span style="white-space: nowrap;">color=</span> | <span style="white-space: nowrap;">color=blue</span> | <span style="white-space: nowrap;">color=blue,black,brown</span> | <span style="white-space: nowrap;">color=R,100,G,200,B,150</span> |
+| cookie | true | <span style="white-space: nowrap;">color=</span> | <span style="white-space: nowrap;">color=blue</span> | <span style="white-space: nowrap;">color=blue; color=black; color=brown</span> | <span style="white-space: nowrap;">R=100; G=200; B=150</span> |
 
 ##### Extending Support for Querystring Formats
 

src/schemas/validation/schema.yaml

@@ -477,7 +477,9 @@ $defs:
               properties:
                 style:
                   default: form
-                  const: form
+                  enum:
+                   - form
+                   - cookie
 
     unevaluatedProperties: false