On Wed, 17 Jun 2020 at 07:16, Eric L. Zolf <ewl+rdiffbac...@lavar.de> wrote: > > Hi, > > in the course of the review of PR #404 we came to challenge the quite > complex quoting rules allowed when you backup to/from a remote location. > > Our question is if anybody is relying on those (too) complex quoting > rules to make their backup work? Else it'll allow us to radically > simplify the code. > > More details: if you backup to/from a remote site, the description is of > the form `host::path` (e.g. `rdiff-backup /home > myuser@myhost::/srv/backup/homebak`), and the current quoting allows to > have the double colons (::) somewhere in the `host` or `path` part of > the remote description. And the question is if anybody knows of a > concrete use case for this possibility? > > For even more gory details, the man page states the quoting rules in the > REMOTE OPERATION section. > > Thanks, Eric > > PS: and yes, double colons are a valid POSIX path part (`touch ::` > works), but who really needs it? > > https://github.com/rdiff-backup/rdiff-backup/pull/404
It looks like colon is not a valid character in a host name so that shouldn't be used anywhere. https://stackoverflow.com/questions/3523028/valid-characters-of-a-hostname https://en.wikipedia.org/wiki/Hostname