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/*
Please use git log for copyright holder and year information
This file is part of libbash.
libbash 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 2 of the License, or
(at your option) any later version.
libbash 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 libbash. If not, see <http://www.gnu.org/licenses/>.
*/
///
/// \file cppbash_builtin.cpp
/// \brief Implementation of class to inherit builtins from
///
#include "cppbash_builtin.h"
#include <boost/spirit/include/karma.hpp>
#include <boost/spirit/include/qi.hpp>
#include <boost/spirit/include/phoenix.hpp>
#include "builtins/boolean_builtins.h"
#include "builtins/builtin_exceptions.h"
#include "builtins/break_builtin.h"
#include "builtins/continue_builtin.h"
#include "builtins/declare_builtin.h"
#include "builtins/echo_builtin.h"
#include "builtins/eval_builtin.h"
#include "builtins/export_builtin.h"
#include "builtins/local_builtin.h"
#include "builtins/inherit_builtin.h"
#include "builtins/let_builtin.h"
#include "builtins/return_builtin.h"
#include "builtins/printf_builtin.h"
#include "builtins/shift_builtin.h"
#include "builtins/shopt_builtin.h"
#include "builtins/source_builtin.h"
#include "builtins/unset_builtin.h"
#include "builtins/read_builtin.h"
namespace qi = boost::spirit::qi;
namespace karma = boost::spirit::karma;
namespace phoenix = boost::phoenix;
cppbash_builtin::cppbash_builtin(BUILTIN_ARGS): _out_stream(&out), _err_stream(&err), _inp_stream(&in), _walker(walker)
{
}
cppbash_builtin::builtins_type& cppbash_builtin::builtins() {
static boost::scoped_ptr<builtins_type> p(new builtins_type {
{"break", boost::factory<break_builtin*>()},
{"continue", boost::factory<continue_builtin*>()},
{"echo", boost::factory<echo_builtin*>()},
{"eval", boost::factory<eval_builtin*>()},
{"export", boost::factory<export_builtin*>()},
{"local", boost::factory<local_builtin*>()},
{"declare", boost::factory<declare_builtin*>()},
{"source", boost::factory<source_builtin*>()},
{"shift", boost::factory<shift_builtin*>()},
{"shopt", boost::factory<shopt_builtin*>()},
{"inherit", boost::factory<inherit_builtin*>()},
{":", boost::factory<true_builtin*>()},
{"true", boost::factory<true_builtin*>()},
{"false", boost::factory<false_builtin*>()},
{"return", boost::factory<return_builtin*>()},
{"printf", boost::factory<printf_builtin*>()},
{"let", boost::factory<let_builtin*>()},
{"unset", boost::factory<unset_builtin*>()},
{"read", boost::factory<read_builtin*>()},
});
return *p;
}
void cppbash_builtin::transform_escapes(const std::string &string,
std::ostream& output,
bool ansi_c)
{
using phoenix::val;
using qi::lit;
auto escape_parser =
+(
lit('\\') >>
(
lit('a')[output << val("\a")] |
lit('b')[output << val("\b")] |
// \e is a GNU extension
lit('e')[output << val("\033")] |
lit('E')[output << val("\033")] |
lit('f')[output << val("\f")] |
lit('n')[output << val("\n")] |
lit('r')[output << val("\r")] |
lit('t')[output << val("\t")] |
lit('v')[output << val("\v")] |
lit('\'')[output << val(ansi_c ? "'" : "\\'")] |
lit('"')[output << val(ansi_c ? "\"" : "\\\"")] |
lit('c')[phoenix::throw_(suppress_output())] |
lit('\\')[output << val('\\')] |
lit("0") >> qi::uint_parser<unsigned, 8, 1, 3>()[ output << phoenix::static_cast_<char>(qi::_1)] |
lit("x") >> qi::uint_parser<unsigned, 16, 1, 2>()[ output << phoenix::static_cast_<char>(qi::_1)]
) |
qi::char_[output << qi::_1]
);
auto begin = string.begin();
qi::parse(begin, string.end(), escape_parser);
}
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