Funky, yet standard-conforming email addresses

[jgm]

See related thread under “Email addresses regex”:

Issues we SHOULD resolve before 1.0 release

This is a companion topic for the CommonMark 1.0 release. These are issues that SHOULD be resolved before the 1.0 release, if possible, but are not required to release CommonMark 1.0. Turn empty link definitions into anchors? (SHOULD) Example: [link text]: The link text cannot contain links, though it may contain images. Etc. ... later ... See the discussion of [link text], above. Issue and discussion. Email addresses regex (SHOULD) There are some tests that our current parsers fail. …