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python: add a spot.automata(filename) interface, yielding automata

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* src/hoaparse/fmterror.cc, src/hoaparse/public.hh,
src/hoaparse/hoaparse.yy (hoa_stream_parser::parse_strict): New method
that raises an exception whenever a syntax error is encountered.
* src/ltlparse/public.hh (parse_error): Move ...
* src/misc/common.hh: ... here.
* wrap/python/spot_impl.i: Wrap the hoa output.
* wrap/python/spot.py: Implement spot.automata.
* wrap/python/tests/automata-io.ipynb: New test.
* wrap/python/tests/Makefile.am: Add it.
This commit is contained in:
Alexandre Duret-Lutz 2015-03-27 10:04:36 +01:00
parent 8e6b35e5e3
commit 25de479e12
9 changed files with 701 additions and 22 deletions
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34
src/hoaparse/hoaparse.yy
View file

@ -1612,7 +1612,9 @@ static void fix_properties(result_& r)
namespace spot
{
hoa_stream_parser::hoa_stream_parser(const std::string& name)
hoa_stream_parser::hoa_stream_parser(const std::string& name,
bool ignore_abort)
: filename_(name), ignore_abort_(ignore_abort)
{
if (hoayyopen(name))
throw std::runtime_error(std::string("Cannot open file ") + name);
@ -1630,6 +1632,7 @@ namespace spot
ltl::environment& env,
bool debug)
{
restart:
result_ r;
r.h = std::make_shared<spot::hoa_aut>();
r.h->aut = make_tgba_digraph(dict);
@ -1652,7 +1655,11 @@ namespace spot
last_loc = r.h->loc;
last_loc.step();
if (r.h->aborted)
return r.h;
{
if (ignore_abort_)
goto restart;
return r.h;
}
if (!r.h->aut)
return nullptr;
if (r.state_names)
@ -1662,6 +1669,29 @@ namespace spot
fix_properties(r);
return r.h;
};
tgba_digraph_ptr
hoa_stream_parser::parse_strict(const bdd_dict_ptr& dict,
ltl::environment& env,
bool debug)
{
hoa_parse_error_list pel;
auto a = parse(pel, dict, env, debug);
if (!pel.empty())
{
std::ostringstream s;
if (format_hoa_parse_errors(s, filename_, pel))
throw parse_error(s.str());
}
if (!a)
return nullptr;
if (a->aborted)
throw parse_error("parsing aborted");
return a->aut;
}
}
// Local Variables: