* spot/twa/acc.hh, spot/twa/acc.cc (parse_acc_code): Rename as...
(acc_cond::acc_code): ... this, making it a lot easier to build
acceptance conditions from strings.
* NEWS: Mention the change.
* spot/twaalgos/dtwasat.cc, spot/bin/randaut.cc, spot/tests/acc.cc:
Adjust.
* wrap/python/tests/acc_cond.ipynb, wrap/python/tests/accparse.ipynb,
wrap/python/tests/accparse2.py: Simplify, but not completely to exercise
all variants.
* wrap/python/spot_impl.i: Make acc_code's constructor implicit.
According to https://github.com/adl/hoaf/issues/46
* src/twa/acc.cc (parity): Adjust generation.
* src/tests/hoaparse.test, wrap/python/tests/accparse.ipynb:
Adjust existing test cases.
* wrap/python/tests/accparse2.py: New test cases.
* src/twa/acc.cc: Allow duplicate and reordered pairs. Also recognize
the single-pair cases.
* src/twaalgos/hoa.cc: When Rabin or Streett is detected, canonicalize
the Acceptance: line.
* src/tests/hoaparse.test, wrap/python/tests/accparse2.py: More tests.
* src/tests/sbacc.test: Adjust.
It has two modes: strict or not. In strict mode (tested in
hoaparse.test), the acceptance formula has to match exactly the one
given in the HOA spec. In non-strict mode (tested in accparse2.py)
any equivalent formula is accepted.
* src/twa/acc.cc, src/twa/acc.hh (acc_cond::is_parity): New method.
* src/twaalgos/hoa.cc: Use it.
* src/tests/hoaparse.test: Test it.
* wrap/python/spot_impl.i: Bind it.
* wrap/python/tests/accparse2.py: New file.
* wrap/python/tests/Makefile.am: Add it.
