Spin 6 supports formulas such as []<>(a < b) so that atomic properties
need not be specified using #define. Of course we don't want to
implement all the syntax of Spin in our LTL parser because other tools
may have different syntaxes for their atomic propositions. The
lenient mode tells the scanner to return any (...), {...}, or {...}!
block as a single token. The parser will try to recursively parse
this block as a LTL/SERE formula, and if this fails, it will consider
the block to be an atomic proposition. The drawback is that most
syntax errors will no be considered to be atomic propositions. For
instance (a U b U) is a single atomic proposition in lenient mode, and
a syntax error in default mode.
* src/ltlparse/ltlparse.yy, src/ltlparse/ltlscan.ll,
src/ltlparse/parsedecl.hh, src/ltlparse/public.hh: Add a
lenient parsing mode. Simplify the lexer using yy_scan_string.
* src/bin/common_finput.cc: Add a --lenient option.
* src/ltltest/lenient.test: New file.
* src/ltltest/Makefile.am: Add it.
* src/neverparse/neverclaimparse.yy: Parse the guards in lenient mode.
* src/tgbatest/neverclaimread.test: Adjust.
* src/ltlvisit/tostring.cc: When outputing a formula in Spin's syntax,
output (a < b) instead of "a < b".
* src/misc/escape.cc, src/misc/escape.hh (trim): New helper function.
* src/bin/ltlcheck.cc: Add option --json and --csv.
* src/bin/man/ltlcheck.x: Adjust examples.
* src/tgbatest/ltlcheck.test: Do not output any statistic.
* src/tgbatest/ltlcheck2.test: Output both JSON and CSV stats.
* src/ltlast/formula.hh (has_lbt_atomic_props): New method.
* src/ltlast/formula.cc (printprops): Display it.
* src/ltlast/atomic_prop.cc: Update it.
* src/bin/ltlcheck.cc, src/bin/genltl.cc: Use it.
* doc/tl/tl.tex: Menton has_lbt_atomic_props().
* configure.ac: Check for kill and alarm.
* src/bin/ltlcheck.cc: Disable timeout code when kill or alarm are
missing. Recognize the --timeout option, but display a warning.
* lib/gethrxtime.h, lib/xtime.h: Add extern "C".
* src/bin/Makefile.am (ltlcheck_LDADD): Use LIB_GETHRXTIME.
* src/bin/ltlcheck.cc: Use gethrxtime() to record translation time.
* src/misc/formater.hh (printable_value): Add more accessors.
* src/bin/ltlcheck.cc: Use the formater class to factor the %-expansion
loop, and reuse filenames (such as %F, %S, and %L) between executions
on the same formula.
* src/bin/ltlfilt.cc: Extra input options into...
* src/bin/common_finput.cc, src/bin/common_finput.hh: ... these new
files...
* src/bin/ltl2tgba.cc: ... and use them here.
* src/bin/Makefile.am: Adjust.
* src/ltlvisit/lbt.cc, src/ltlvisit/lbt.hh: New files.
* src/ltlvisit/Makefile.am: Add them.
* src/bin/common_output.cc, src/bin/common_output.hh: Add
support for LBT output, and reporting formulae that cannot
be output in this syntax.
* src/bin/ltlfilt.cc: Pass filename and linenum to
output_formula() for better error reporting.
* src/bin/common_cout.cc, src/bin/common_cout.hh: New files.
* src/bin/Makefile.am: Add them.
* src/bin/ltl2tgba.cc, src/bin/ltlfilt.cc, src/bin/common_output.cc:
Report error when writing to std::cout failed. This is mainly
motivated by ltlfilt not being killed by SIGPIPE on lip6's OSX
buildfarm (SIGPIPE is probably ignored when the build is started), but
it could detect other errors such as a disk full.
* src/tgbaalgos/postproc.cc, src/tgbaalgos/postproc.hh: New class to
capture the postprocessing logic.
* src/tgbaalgos/Makefile.am: Add them.
* src/bin/ltl2tgba.cc, src/bin/man/ltl2tgba.x: New files.
* src/bin/Makefile.am, src/bin/man/Makefile.am: Add them.
* src/tgbatest/spotlbtt.test: Prune the list of configurations slightly.
* src/tgbatest/spotlbtt2.test: New file.
* src/tgbatest/Makefile.am: Add it.
* bench/ltl2tgba/algorithms, bench/ltl2tgba/defs.in: Adjust to
use the new binary.
* NEWS: Update.
* src/bin/common_sys.hh: New file.
* src/bin/Makefile.am: Add it.
* src/bin/common_output.hh, src/bin/common_r.cc,
src/bin/common_range.cc, src/bin/genltl.cc, src/bin/ltlfilt.cc,
src/bin/randltl.cc: Include common_sys.hh instead of config.h.
