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parser_input_files.cc
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Thu, Nov 7, 19:07

parser_input_files.cc
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/**
* @file parser_input_files.cc
*
* @author Nicolas Richart <nicolas.richart@epfl.ch>
*
* @date creation: Wed Nov 11 2015
* @date last modification: Wed Nov 08 2017
*
* @brief implementation of the parser
*
*
* Copyright (©) 2015-2018 EPFL (Ecole Polytechnique Fédérale de Lausanne)
* Laboratory (LSMS - Laboratoire de Simulation en Mécanique des Solides)
*
* Akantu is free software: you can redistribute it and/or modify it under the
* terms of the GNU Lesser General Public License as published by the Free
* Software Foundation, either version 3 of the License, or (at your option) any
* later version.
*
* Akantu 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 Lesser General Public License for more
* details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with Akantu. If not, see <http://www.gnu.org/licenses/>.
*
*/
#if defined(__INTEL_COMPILER)
//#pragma warning ( disable : 383 )
#elif defined(__clang__) // test clang to be sure that when we test for gnu it
// is only gnu
#elif (defined(__GNUC__) || defined(__GNUG__))
#define GCC_VERSION \
(__GNUC__ * 10000 + __GNUC_MINOR__ * 100 + __GNUC_PATCHLEVEL__)
#if GCC_VERSION > 40600
#pragma GCC diagnostic push
#endif
#pragma GCC diagnostic ignored "-Wunused-local-typedefs"
#endif
/* -------------------------------------------------------------------------- */
#include "parser.hh"
#include "parser_grammar_tmpl.hh"
/* -------------------------------------------------------------------------- */
#include "input_file_parser.hh"
/* -------------------------------------------------------------------------- */
#include <fstream>
/* -------------------------------------------------------------------------- */
namespace akantu {
/* -------------------------------------------------------------------------- */
void Parser::parse(const std::string & filename) {
this->clean();
std::ifstream input(filename.c_str());
if (!input.good()) {
AKANTU_EXCEPTION("Could not open file " << filename << "!");
}
input.unsetf(std::ios::skipws);
// wrap istream into iterator
spirit::istream_iterator fwd_begin(input);
spirit::istream_iterator fwd_end;
// wrap forward iterator with position iterator, to record the position
using pos_iterator_type =
spirit::classic::position_iterator2<spirit::istream_iterator>;
pos_iterator_type position_begin(fwd_begin, fwd_end, filename);
pos_iterator_type position_end;
// parse
parser::InputFileGrammar<pos_iterator_type> ag(this);
bool result = qi::phrase_parse(position_begin, position_end, ag, ag.skipper);
if (!result || position_begin != position_end) {
spirit::classic::file_position pos = position_begin.get_position();
AKANTU_EXCEPTION("Parse error [ "
<< ag.getErrorMessage() << " ]"
<< " in file " << filename << " line " << pos.line
<< " column " << pos.column << std::endl
<< "'" << position_begin.get_currentline() << "'"
<< std::endl
<< std::setw(pos.column) << " "
<< "^- here");
}
try {
bool permissive = getParameter("permissive_parser", _ppsc_current_scope);
permissive_parser = permissive;
AKANTU_DEBUG_INFO("Parser switched permissive mode to "
<< std::boolalpha << permissive_parser);
} catch (debug::Exception & e) {
}
last_parsed_file = filename;
input.close();
}
} // namespace akantu
#if defined(__INTEL_COMPILER)
//#pragma warning ( disable : 383 )
#elif defined(__clang__) // test clang to be sure that when we test for gnu it
// is only gnu
#elif defined(__GNUG__)
#if GCC_VERSION > 40600
#pragma GCC diagnostic pop
#else
#pragma GCC diagnostic warning "-Wunused-local-typedefs"
#endif
#endif

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