Call it a namespace

Author: eemeli

spec/README.md

@@ -16,8 +16,8 @@
    1. [Data Model Errors](errors.md#data-model-errors)
    1. [Resolution Errors](errors.md#resolution-errors)
    1. [Message Function Errors](errors.md#message-function-errors)
-1. [Default Function Registry](registry/default.md)
-1. [`u:` Unicode Registry](registry/unicode.md)
+1. [Default Function Registry](registry.md)
+1. [`u:` Namespace](u-namespace.md)
 1. [Formatting](formatting.md)
 1. [Interchange data model](data-model/README.md)
 

spec/formatting.md

@@ -267,9 +267,8 @@ the following steps are taken:
      potentially including a fallback chain of locales.
    - The base directionality of the _message_ and its _text_ tokens.
 
-   If the resolved mapping of _options_ includes any `u:` options
-   supported by the implementation,
-   process them as specified in the [Unicode Registry](/spec/registry/unicode.md).
+   If the resolved mapping of _options_ includes any _`u:` options_
+   supported by the implementation, process them as specified.
    Such `u:` options MAY be removed from the resolved mapping of _options_.
 
 5. Call the function implementation with the following arguments:
@@ -357,9 +356,8 @@ The _resolved value_ of _markup_ includes the following fields:
 - The _identifier_ of the _markup_
 - The resolved _options_ values after _option resolution_.
 
-If the resolved mapping of _options_ includes any `u:` options
-supported by the implementation,
-process them as specified in the [Unicode Registry](/spec/registry/unicode.md).
+If the resolved mapping of _options_ includes any _`u:` options_
+supported by the implementation, process them as specified.
 Such `u:` options MAY be removed from the resolved mapping of _options_.
 
 The resolution of _markup_ MUST always succeed.

spec/registry/default.md renamed to spec/registry.md

@@ -525,7 +525,7 @@ whether an _operand_ is required,
 what form the values of an _operand_ can take,
 what _options_ and _option_ values are acceptable,
 and what outputs might result.
-See [function registry](/spec/registry/default.md) for more information.
+See [function registry](./registry.md) for more information.
 
 A _function_ starts with a prefix sigil `:` followed by an _identifier_.
 The _identifier_ MAY be followed by one or more _options_.

spec/syntax.md

@@ -1,10 +1,10 @@
-# MessageFormat 2.0 Unicode Registry
+# MessageFormat 2.0 Unicode Namespace
 
 The `u:` namespace is reserved for use by the Unicode Consortium.
 
 ## Options
 
-This section describes common options which each implementation SHOULD support
+This section describes common **_<dfn>`u:` options</dfn>_** which each implementation SHOULD support
 for all _functions_ and _markup_.
 
 ### `u:id`

spec/registry/unicode.md renamed to spec/u-namespace.md

@@ -10,7 +10,7 @@ These test files are intended to be useful for testing multiple different messag
 - `data-model-errors.json` - Strings that should produce a Data Model Error when processed.
   Error names are defined in ["MessageFormat 2.0 Errors"](../spec/errors.md) in the spec.
 
-- `unicode.md` — Test cases for the `u:` Unicode Registry, using built-in functions.
+- `u-options.md` — Test cases for the `u:` options, using built-in functions.
 
 - `functions/` — Test cases that correspond to built-in functions.
   The behaviour of the built-in formatters is implementation-specific so the `exp` field is often
@@ -23,6 +23,7 @@ Some examples of test harnesses using these tests, from the source repository:
 - [Formatting tests](https://github.com/messageformat/messageformat/blob/11c95dab2b25db8454e49ff4daadb817e1d5b770/packages/mf2-messageformat/src/messageformat.test.ts)
 
 A [JSON schema](./schemas/) is included for the test files in this repository.
+
 ## Error Codes
 
 The following table relates the error names used in the [JSON schema](./schemas/)

test/README.md

@@ -1,6 +1,6 @@
 {
   "$schema": "https://raw.githubusercontent.com/unicode-org/message-format-wg/main/test/schemas/v0/tests.schema.json",
-  "scenario": "Unicode u: Registry",
+  "scenario": "u: Options",
   "description": "Common options affecting the function context",
   "defaultTestProperties": {
     "locale": "en-US"