spot/bin/common_hoaread.hh
Alexandre Duret-Lutz 1f9f3c77ea bin: abort autcross on input parse error
* bin/common_hoaread.hh (hoa_processor): Add a abort_on_error
option.
* bin/autcross.cc: Use it.
* tests/core/autcross4.test: Add many more error cases to improve
coverage.
2018-05-21 17:39:38 +02:00

145 lines
4 KiB
C++

// -*- coding: utf-8 -*-
// Copyright (C) 2015, 2017, 2018 Laboratoire de Recherche et Développement de
// l'Epita (LRDE).
//
// This file is part of Spot, a model checking library.
//
// Spot is free software; you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// Spot is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
// or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
// License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
#pragma once
#include "common_sys.hh"
#include "error.h"
#include <argp.h>
#include <cstring>
#include <sys/stat.h>
#include <unistd.h>
#include <iostream>
#include <fstream>
#include "common_finput.hh"
#include <spot/parseaut/public.hh>
extern const struct argp hoaread_argp;
extern spot::automaton_parser_options opt_parse;
spot::twa_graph_ptr
read_automaton(const char* filename, spot::bdd_dict_ptr& dict);
class hoa_processor: public job_processor
{
protected:
spot::bdd_dict_ptr dict_;
bool abort_on_error_;
public:
hoa_processor(spot::bdd_dict_ptr dict, bool abort_on_error = false)
: dict_(dict), abort_on_error_(abort_on_error)
{
}
int
process_formula(spot::formula, const char*, int) override
{
SPOT_UNREACHABLE();
}
virtual int
process_automaton(const spot::const_parsed_aut_ptr& haut) = 0;
int process_string(const std::string& input, const char* filename,
int linenum) override
{
std::ostringstream loc;
loc << filename << ':' << linenum;
std::string locstr = loc.str();
return process_automaton_stream
(spot::automaton_stream_parser(input.c_str(), locstr, opt_parse));
}
int
aborted(const spot::const_parsed_aut_ptr& h)
{
std::cerr << h->filename << ':' << h->loc << ": aborted input automaton\n";
return 2;
}
int
process_file(const char* filename) override
{
// If we have a filename like "foo/NN" such
// that:
// ① foo/NN is not a file,
// ② NN is a number,
// ③ foo is a file,
// then it means we want to open foo as
// a CSV file and process column NN.
if (const char* slash = strrchr(filename, '/'))
{
char* end;
errno = 0;
long int col = strtol(slash + 1, &end, 10);
if (errno == 0 && !*end && col != 0)
{
struct stat buf;
if (stat(filename, &buf) != 0)
{
col_to_read = col;
if (real_filename)
free(real_filename);
real_filename = strndup(filename, slash - filename);
// Special case for stdin.
if (real_filename[0] == '-' && real_filename[1] == 0)
return process_stream(std::cin, real_filename);
std::ifstream input(real_filename);
if (input)
return process_stream(input, real_filename);
error(2, errno, "cannot open '%s' nor '%s'",
filename, real_filename);
}
}
}
return process_automaton_stream(spot::automaton_stream_parser(filename,
opt_parse));
}
int process_automaton_stream(spot::automaton_stream_parser&& hp)
{
int err = 0;
while (!abort_run)
{
auto haut = hp.parse(dict_);
if (!haut->aut && haut->errors.empty())
break;
if (haut->format_errors(std::cerr))
err = 2;
if (!haut->aut || (err && abort_on_error_))
error(2, 0, "failed to read automaton from %s",
haut->filename.c_str());
else if (haut->aborted)
err = std::max(err, aborted(haut));
else
process_automaton(haut);
}
return err;
}
};