Out of office: jcoffey-dev is traveling from November 1 to November 6. Responses to issues may be slow or delayed during this time, but I will be checking in.
The tokenizer that finds URLs and email addresses in a message looked
for the closing bracket of an IPv6 host with no limit, buffering every
token after an unclosed "[", and then took those tokens off the front
of a Vec one at a time. A long "a@[1:1:1:..." run in inbound mail took
time quadratic in its length: 7.4 s for 200,000 characters, hours for
a full-size message. No IPv6 literal is longer than 47 characters with
its brackets, so the search stops there, and the buffer is a VecDeque.
jcoffey-dev
e028a0c091