I had no idea about it either; Herbert made me aware of it.
There is a mapping of the 'interwiki syntax' we can use here:
https://ghc.haskell.org/trac/ghc/wiki/InterMapTxt
The 'Phab' syntax is just one of many.
I'll add it to the wiki page!
On Mon, Jul 14, 2014 at 4:37 PM, Simon Peyton Jones
| Look at the top - there is a link to 'Phab:D69', which is the | differential revision hyperlinked properly. | | If you use this syntax in Trac now, it will automatically hyperlink | revisions. Perhaps in the future we can shorten it to just 'D69' for | example. But this syntax works now to hyperlink directly to | Phabricator.
Is this now part of GHC Trac wiki markup syntax generally? Ie can occur in any wiki text? If so, could it be documented? Do we have a place where we collect all GHC-trac-specific Wiki markup? If not, could we have one.
Otherwise how would a new person ever find out?
Simon
-- Regards, Austin Seipp, Haskell Consultant Well-Typed LLP, http://www.well-typed.com/