On Thu, Feb 23, 2012 at 2:22 PM, Paul Moore <p.f.moore at gmail.com> wrote: > On 23 February 2012 11:01, Rob Cliffe <rob.cliffe at btinternet.com> wrote: >> I have no idea for example what "VCS" means. >> Version Control System (things like Subversion, Mercurial, or Git) Bazaar and Mercurial in this case. Mercurial's differ: http://selenic.com/hg/file/816211dfa3a5/mercurial/pure/bdiff.py Bazaar's: http://bazaar.launchpad.net/~bzr-pqm/bzr/bzr.dev/view/head:/bzrlib/diff.py -- anatoly t.