{"action":"created","issue":{"url":"https://api.github.com/repos/opencontainers/image-spec/issues/655","repository_url":"https://api.github.com/repos/opencontainers/image-spec","labels_url":"https://api.github.com/repos/opencontainers/image-spec/issues/655/labels{/name}","comments_url":"https://api.github.com/repos/opencontainers/image-spec/issues/655/comments","events_url":"https://api.github.com/repos/opencontainers/image-spec/issues/655/events","html_url":"https://github.com/opencontainers/image-spec/pull/655","id":224199576,"number":655,"title":"descriptor: Formal ABNF for digest values","user":{"login":"wking","id":209920,"avatar_url":"https://avatars2.githubusercontent.com/u/209920?v=3","gravatar_id":"","url":"https://api.github.com/users/wking","html_url":"https://github.com/wking","followers_url":"https://api.github.com/users/wking/followers","following_url":"https://api.github.com/users/wking/following{/other_user}","gists_url":"https://api.github.com/users/wking/gists{/gist_id}","starred_url":"https://api.github.com/users/wking/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/wking/subscriptions","organizations_url":"https://api.github.com/users/wking/orgs","repos_url":"https://api.github.com/users/wking/repos","events_url":"https://api.github.com/users/wking/events{/privacy}","received_events_url":"https://api.github.com/users/wking/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":3,"created_at":"2017-04-25T16:35:44Z","updated_at":"2017-04-26T15:13:23Z","closed_at":null,"pull_request":{"url":"https://api.github.com/repos/opencontainers/image-spec/pulls/655","html_url":"https://github.com/opencontainers/image-spec/pull/655","diff_url":"https://github.com/opencontainers/image-spec/pull/655.diff","patch_url":"https://github.com/opencontainers/image-spec/pull/655.patch"},"body":"I'm not sure what the grammar language was before, but this commit converts it to ABNF and references the defining RFC.\n\nThe ABNF highlighting comes from [here][1] and [here][2].\n\n[1]: https://help.github.com/articles/creating-and-highlighting-code-blocks/#syntax-highlighting\n[2]: https://github.com/github/linguist/blob/v5.0.8/lib/linguist/languages.yml#L50-L56"},"comment":{"url":"https://api.github.com/repos/opencontainers/image-spec/issues/comments/297441523","html_url":"https://github.com/opencontainers/image-spec/pull/655#issuecomment-297441523","issue_url":"https://api.github.com/repos/opencontainers/image-spec/issues/655","id":297441523,"user":{"login":"stevvooe","id":120601,"avatar_url":"https://avatars2.githubusercontent.com/u/120601?v=3","gravatar_id":"","url":"https://api.github.com/users/stevvooe","html_url":"https://github.com/stevvooe","followers_url":"https://api.github.com/users/stevvooe/followers","following_url":"https://api.github.com/users/stevvooe/following{/other_user}","gists_url":"https://api.github.com/users/stevvooe/gists{/gist_id}","starred_url":"https://api.github.com/users/stevvooe/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/stevvooe/subscriptions","organizations_url":"https://api.github.com/users/stevvooe/orgs","repos_url":"https://api.github.com/users/stevvooe/repos","events_url":"https://api.github.com/users/stevvooe/events{/privacy}","received_events_url":"https://api.github.com/users/stevvooe/received_events","type":"User","site_admin":false},"created_at":"2017-04-26T15:13:23Z","updated_at":"2017-04-26T15:13:23Z","body":"> Enforcing a MUST based on informal notation seems like more trouble\r\nthan reading the ABNF ;).\r\n\r\nAlso, there is nothing informal about the syntax here. Regular expressions are well-defined and understood by a broader group of readers than ABNF."}}
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