[i18n-activity] lowercase ASCII keys (#1600)

aphillips has just created a new issue for https://github.com/w3c/i18n-activity:

== lowercase ASCII keys ==
## Proposed comment

3.3.2.2.1 Key
https://www.w3.org/TR/trace-context-2/#key

> A key MUST begin with a lowercase letter or a digit and contain up to 256 characters including lowercase letters (a-z), digits (0-9), underscores (_), dashes (-), asterisks (*), forward slashes (/), and at signs (@).

The definitions here should be more rigorously laid out. The `key` is part of the `tracestate` header's value and is described as "...an identifier that describes the vendor". The identifier is restricted to lowercase ASCII letters, digits, and the punctuation shown above in the quote.

Allowing keys/values that are non-ASCII is one possibility here, since vendors presumably can be named anything. Restricting the value to an ASCII token is understandable because of the need for encoding efficiency, but the text should be clearer about the reasoning behind the ASCII restriction.

## Instructions: 

This follows the process at https://w3c.github.io/i18n-activity/guidelines/review-instructions.html

1. Create the review comment you want to propose by replacing the prompts above these instructions, but **LEAVE ALL THE INSTRUCTIONS INTACT** 

2. Set a label to identify the spec: this starts with s: followed by the spec's short name. If you are unable to do that, ask a W3C staff contact to help.

3. Ask the i18n WG to review your comment.

4. After discussion with the i18n WG, raise an issue in the repository of the WG that owns the spec. Use the text above these instructions as the starting point for that comment, but add any suggestions that arose from the i18n WG. In the other WG's repo, add an 'i18n-needs-resolution' label to the new issue. If you think any of the participants in layout requirements task force groups would be interested in following the discussion, add also the appropriate i18n-\*lreq label(s).

5. Delete the text below that says 'url_for_the_issue_raised', then add in its place the URL for the issue you raised in the other WG's repository. Do NOT remove the initial '§ '. Do NOT use \[...](...) notation – you need to delete the placeholder, then paste the URL.

6. Remove the 'pending' label, and add a 'needs-resolution' tag to this tracker issue. 

7. If you added an \*lreq label, add the label 'spec-type-issue', add the corresponding language label, and a label to indicate the relevant typographic feature(s), eg. 'i:line_breaking'. The latter represent categories related to the Language Enablement Index, and all start with i:.

8. Edit this issue to **REMOVE ALL THE INSTRUCTIONS & THE PROPOSED COMMENT**, ie. the line below that is '---' and all the text before it to the very start of the issue.

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Please view or discuss this issue at https://github.com/w3c/i18n-activity/issues/1600 using your GitHub account


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Received on Monday, 3 October 2022 17:34:32 UTC