* src/sanity/readme.test: For each AC_OUTPUT Makefile, check that
the directory is documented in README.  Also skip non distributed
directories in readme.test.
* README: Fit on 80 columns.

directories referenced in README exist.
* src/sanity/Makefile.am: Adjust to call `readme.test' when make
check is invoked.

* src/sanity/style.test: Make sure sh does not abort when read
exits with false.

* tgba/tgbareduc.hh, tgbaalgos/reductgba_sim.cc,
tgbaalgos/reductgba_sim.hh, tgbaalgos/reductgba_sim_del.cc: Fix them.

* bench/emptchk/ltl-human.sh, bench/emptchk/ltl-random.sh,
src/sanity/style.test, src/tgba/bdddict.cc,
src/tgba/succiterconcrete.hh, src/tgba/tgbabddcoredata.hh,
src/tgba/tgbareduc.cc, src/tgba/tgbareduc.hh,
src/tgbaalgos/gv04.cc, src/tgbaalgos/gv04.hh,
src/tgbaalgos/magic.cc, src/tgbaalgos/magic.hh,
src/tgbaalgos/se05.cc, src/tgbaalgos/se05.hh,
src/tgbaalgos/tau03.cc, src/tgbaalgos/tau03.hh,
src/tgbaalgos/tau03opt.cc, src/tgbaalgos/tau03opt.hh,
src/tgbatest/dfs.test: Replace them by "acceptance condition".

(emptiness_check_instantiator): New class.
* src/misc/optionmap.hh (set (const option_map&)): New method.
* src/tgbatest/randtgba.cc: Create every emptiness check via
emptiness_check_instantiator.

file, so that strings are not checked for our C++ style.
Reported by Denis (with a chainsaw).

* src/tgbaalgos/ndfs_result.hxx: Rename the include guard.

* src/sanity/80columns.test, src/sanity/style.test: Process *.hxx files.
* src/tgbaalgos/ndfs_result.hh: Rename as ..
* src/tgbaalgos/ndfs_result.hxx: ... this, so it does not get
documented (and so Doxygen do not complain).
* src/tgbaalgos/magic.cc, src/tgbaalgos/se05.cc, src/tgbaalgos/tau03.cc,
src/tgbaalgos/tau03opt.cc: Adjust include.
* src/tgbaalgos/Makefile.am: Rename ndfs_result.hh as ndfs_result.hxx
and do not install it, this is a private header.

src/ltlast/refformula.hh, src/ltlenv/defaultenv.hh,
src/misc/bareword.hh, src/tgba/succiter.hh,
src/tgba/tgbabddfactory.hh, src/tgba/tgbareduc.hh,
src/tgbaalgos/dupexp.hh, src/tgbaalgos/emptiness_stats.hh,
src/tgbaalgos/ltl2tgba_fm.hh, src/tgbaalgos/ltl2tgba_lacim.hh,
src/tgbaalgos/reductgba_sim.hh, src/tgbaalgos/tau03opt.hh: Add
or fix include guards.
* src/sanity/includes.test: Check the presence of the include
guard.

* src/misc/Makefile.am (misc_HEADERS, libmisc_la_SOURCES): Add them.
* src/tgbatest/randtgba.cc: Use time_map to measure the algorithms.
Add the -R option.
* src/sanity/style.sh: Let me use `for (.*;;)'.

into GREP_OPTIONS.

as `if (x) delete x;'.
* iface/gspn/gspn.cc, iface/gspn/ssp.cc, src/ltlvisit/basicreduce.cc,
src/tgba/tgba.cc, src/tgba/tgbaproduct.cc, src/tgbaalgos/magic.cc,
src/tgbatest/ltl2tgba.cc: Remove such constructs.

* src/sanity/style.test: Diagnose trailing whitespace.

* src/sanity/80columns.test: Use expand to untabify, the previous
recipe was incomplete.

src/ltlvisit/destroy.cc, src/ltlvisit/dotty.cc,
src/ltlvisit/dump.cc, src/ltlvisit/length.cc,
src/ltlvisit/nenoform.cc, src/ltlvisit/reduce.cc,
src/ltlvisit/syntimpl.cc, src/ltlvisit/tostring.cc,
src/tgba/formula2bdd.cc, src/tgba/tgbabddconcreteproduct.cc,
src/tgba/tgbatba.cc, src/tgbaalgos/dotty.cc,
src/tgbaalgos/dupexp.cc, src/tgbaalgos/lbtt.cc,
src/tgbaalgos/ltl2tgba_lacim.cc, src/tgbaalgos/neverclaim.cc,
src/tgbaalgos/save.cc, src/tgbaalgos/stats.cc,
src/tgbaalgos/gtec/nsheap.cc, src/tgbaalgos/gtec/nsheap.hh:
Declare private classes and helper function in anonymous namespaces.
* HACKING, src/sanity/style.test: Document and check this.
Also check for trailing { after namespace or class.
* src/ltlast/predecl.hh, src/ltlast/visitor.hh,
src/tgba/tgbareduc.hh: Fix trailing {.

* src/tgbaalgos/tarjan_on_fly.cc: Fix.

matter, for consistency.
* src/tgbaalgos/tarjan_on_fly.cc, iface/gspn/ssp.cc,
src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/reductgba_sim.cc,
src/tgbaalgos/minimalce.cc, src/tgba/tgbareduc.cc: Adjust.

instead of empty().
* src/misc/bddalloc.cc (bdd_allocator::extend): Use empty() rather
than size() when checking emptiness of lists.
* src/tgbaalgos/reductgba_sim_del.cc, src/tgbaalgos/minimalce.cc,
src/ltlvisit/basicreduce.cc, src/ltlvisit/reduce.cc,
src/tgbaalgos/gtec/ce.cc, src/tgbaalgos/ltl2tgba_fm.cc,
src/misc/minato.cc: Likewise.
* src/ltlast/multop.cc (multop::instance): Call ->size() only once.

* src/sanity/includes.test: Include files twice to check include
guards.

src/ltlast/atomic_prop.cc, src/ltlast/atomic_prop.hh,
src/ltlparse/fmterror.cc, src/ltlparse/public.hh,
src/ltlvisit/dotty.cc, src/ltlvisit/dotty.hh,
src/ltlvisit/dump.cc, src/ltlvisit/dump.hh,
src/ltlvisit/tostring.cc, src/ltlvisit/tostring.hh,
src/misc/escape.cc, src/misc/escape.hh, src/tgba/bdddict.cc,
src/tgba/bdddict.hh, src/tgba/bddprint.cc, src/tgba/bddprint.hh,
src/tgbaalgos/dotty.cc, src/tgbaalgos/dotty.hh,
src/tgbaalgos/lbtt.cc, src/tgbaalgos/lbtt.hh,
src/tgbaalgos/neverclaim.cc, src/tgbaalgos/neverclaim.hh,
src/tgbaalgos/save.cc, src/tgbaalgos/save.hh,
src/tgbaalgos/gtec/status.cc, src/tgbaalgos/gtec/status.hh,
src/tgbaparse/fmterror.cc, src/tgbaparse/public.hh: Include <iosfwd>
in headers, and prefer <ostream> in the body whenever possible.
* src/sanity/style.test, HACKING: Check and document this.

* iface/gspn/ssp.cc, src/ltltest/reduc.cc, src/ltltest/syntimpl.cc,
src/ltlvisit/basereduc.cc, src/ltlvisit/reducform.cc,
src/ltlvisit/syntimpl.cc: Use 0 instead of NULL.

inf_form_right_recurse_visitor, inf_form_left_recurse_visitor): Rename
as ...
(eventual_universal_visitor, inf_right_recurse_visitor,
inf_left_recurse_visitor): ... these.
(is_GF, is_FG): Move ...
* src/ltlvisit/basereduc.cc (is_GF, is_FG): ... here, since they
are only used here.
(basic_reduce_form, basic_reduce_form_visitor): Rename as ...
(basic_reduce, basic_reduce_visitor): ... these.
* src/ltlvisit/reducform.cc (reduce_form_visitor): Rename as ...
(reduce_visitor): ... this.
* src/ltltest/inf.cc: Adjust calls.
* src/sanity/style.test: Improve missing-space after coma detection.

dynamic_cast instead of node_type_form_visitor, this is usually
smaller.
* src/ltlvisit/reducform.hh,
src/ltlvisit/forminf.cc (node_type_form_visitor): Delete.
* src/sanity/style.test: Two more checks.

* src/sanity/80columns.test: Untabify files.
* iface/gspn/ltlgspn.cc, src/ltlvisit/basereduc.cc: Fix long lines.

* src/ltlvisit/reducform.cc, src/ltlvisit/forminf.cc: Fix style.

and style.test.

* iface/gspn/gspn.cc, iface/gspn/ssp.cc: Fix style.

* iface/gspn/dcswaveltl.test, iface/gspn/dcswavefm.test,
iface/gspn/dcswaveeltl.test, iface/gspn/udcsltl.test,
iface/gspn/udcseltl.test, iface/gspn/udcsfm.test,
iface/gspn/udcsefm.test: Wrap to fit 80 columns.

* sanity/style.test: Diagnose semicolons with leading spaces.

* sanity/style.test: More tests.