Extended former conversion from DRA->DBA to handle
the case where some SCC is not DBA-realizable.
* src/dstarparse/dra2dba.cc: Rename as...
* src/dstarparse/dra2ba.cc: ... this.
(dra_to_dba, dra_to_dba_worker): Rename as...
(dra_to_ba, dra_to_ba_worker): ... these and extend.
* src/dstarparse/Makefile.am, src/dstarparse/public.hh,
src/dstarparse/dstar2tgba.cc, src/dstarparse/nra2nba.cc: Adjust.
* NEWS: Update the description of dstar2tgba accordingly.
This is an implementation of Krishnan's ISAAC'94 paper to convert
deterministic Rabin automata into DBA when possible.
* src/dstarparse/dra2dba.cc: New file.
* src/dstarparse/dstar2tgba.cc: New file.
* src/dstarparse/Makefile.am: Add them.
* src/dstarparse/nra2nba.cc (nra_to_nba): Adjust so
that dra_to_dba() can call it using a masked automaton.
* src/dstarparse/public.hh (dra_to_dba, dstar_to_tgba): Declare.
* src/tgbatest/ltl2tgba.cc: Add an -XDD option.
* src/tgbatest/dstar.test: More tests.
