* spot/twaalgos/zlktree.hh, spot/twaalgos/zlktree.cc (acd::node_level, acd::state_step, acd_transform_sbacc): New public functions. * tests/python/zlktree.ipynb, tests/python/zlktree.py: More tests. * NEWS: Typo.
* spot/twaalgos/zlktree.cc, spot/twaalgos/zlktree.hh: Here. * tests/python/zlktree.ipynb, tests/python/zlktree.py: Add tests and examples.
Reported by Florian. * spot/twaalgos/zlktree.cc: Handle the case where the condition does not cover all colors. * tests/python/zlktree.py: New file. * tests/Makefile.am: Add it.