link with . http://example.com/hello-world.
link with ! http://example.com/hello-world!
link with : http://example.com/hello-world:
link with , http://example.com/hello-world,
link with ; http://example.com/hello-world;
link with ) http://example.com/hello-world)
link with nothing http://example.com/hello-world
The scheme http will be inserted automatically:
After a valid domain, zero or more non-space non-< characters may follow:
Visit www.commonmark.org/help for more information.
Trailing punctuation (specifically, ?, !, ., ,, :, *, _, and ~) will not be considered part of the autolink, though they may be included in the interior of the link:
Visit www.commonmark.org.
Visit www.commonmark.org/a.b.
www.google.com/search?q=Markup+(business)
(www.google.com/search?q=Markup+(business))
www.google.com/search?q=(business))+ok
www.google.com/search?q=commonmark&hl=en
www.google.com/search?q=commonmark&
< immediately ends an autolink.
(Visit https://encrypted.google.com/search?q=Markup+(business))
Anonymous FTP is available at ftp://foo.bar.baz.
Extended email autolinks:
hello@mail+xyz.example isn't valid, but hello+xyz@mail.example is.
a.b-c_d@a.b-
a.b-c_d@a.b_