revsets and tags question

[Harvey Chapman]

Is there a better way than the following for finding the most recent tag (fitting a pattern) that is an ancestor of the currently checked out revision?

So, we’re looking for the most recent “tag_*” that the current working copy is a descendent of.

        hg log --template '{tags}\n' -r 'last(ancestors(.) and tag("re:tag_.+"))’

So, after “hg update 9”, I should get “tag_6” and similarly I should get “tag_5” after updating to rev 8.

@  9:ede25d59cea4 tip
|
| o  8:d563061ccc29
| |
o |  7:fb6ff949035e tag_6
| |
| o  6:81a389207fd8 tag_5
| |
o |  5:3015f96c36b6 tag_4
| |
| o  4:2756f8acd283 tag_3
| |
o |  3:f43ba35ab911 tag_2
| |
| o  2:98d964b74062 tag_1
| |
| o  1:ca95db347642
|/
o  0:4f19c9537cf5 tag_0