3946   $ hg log --template '{rev} {ifcontains(rev, revset(". + .^"), "match rev", "not match rev")}\n'

  3946   $ hg log --template '{rev} {ifcontains(rev, revset(". + .^"), "match rev", "not match rev")}\n'

  3947   2 match rev

  3947   2 match rev

  3948   1 match rev

  3948   1 match rev

  3949   0 not match rev

  3949   0 not match rev

  3950 

  3950 

  3951   $ hg log --template '{rev} Parents: {revset("parents(%s)", rev)}\n'

  3954   $ hg log --template '{rev} Parents: {revset("parents(%s)", rev)}\n'

  3952   2 Parents: 1

  3955   2 Parents: 1

  3953   1 Parents: 0

  3956   1 Parents: 0

  3954   0 Parents: 

  3957   0 Parents: 

  3955 

  3958