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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 declare_builtin.cpp
/// \brief class that implements the declare builtin
///
#include "builtins/declare_builtin.h"
#include <algorithm>
#include <iostream>
#include <boost/algorithm/string/classification.hpp>
#include <boost/algorithm/string/split.hpp>
#include "core/bash_ast.h"
#include "core/interpreter.h"
#include "exceptions.h"
int declare_builtin::exec(const std::vector<std::string>& bash_args)
{
if(bash_args.empty())
{
throw libbash::illegal_argument_exception("declare: arguments required");
return 1;
}
int result = 0;
std::vector<std::string> tokens;
boost::split(tokens, bash_args[0], boost::is_any_of(" "));
if(tokens[0][0] == '-' || tokens[0][0] == '+')
{
if(tokens[0].size() > 2)
throw libbash::unsupported_exception("declare: " + tokens[0] + " is not supported yet");
switch(tokens[0][1])
{
case 'F':
if(tokens[0][0] == '+')
return 0;
if(tokens.size() > 1)
{
for(auto iter = tokens.begin() + 1; iter != tokens.end(); ++iter)
{
if(_walker.has_function(*iter))
*_out_stream << *iter << std::endl;
else
result = 1;
}
}
else
{
std::vector<std::string> functions;
_walker.get_all_function_names(functions);
sort(functions.begin(), functions.end());
for(auto iter = functions.begin(); iter != functions.end(); ++iter)
*_out_stream << "declare -f " << *iter << std::endl;
}
return result;
case 'p':
if(tokens.size() > 1)
{
for(auto iter = tokens.begin() + 1; iter != tokens.end(); ++iter)
{
// We do not print the type of the variable for now
if(!_walker.is_unset(*iter))
{
*_out_stream << "declare -- " << *iter << "=\"" << _walker.resolve<std::string>(*iter) << "\"" << std::endl;
}
else
{
*_out_stream << "-bash: declare: " << *iter << ": not found" << std::endl;
result = 1;
}
}
}
else
{
throw libbash::unsupported_exception("We do not support declare -p without arguments for now");
}
return result;
case 'a':
case 'i':
case 'A':
case 'f':
case 'l':
case 'r':
case 't':
case 'u':
case 'x':
throw libbash::unsupported_exception("declare " + tokens[0] + " is not supported yet");
return 1;
default:
throw libbash::illegal_argument_exception("declare: unrecognized option: " + tokens[0]);
return 1;
}
}
std::stringstream script;
for(auto iter = bash_args.begin(); iter != bash_args.end(); ++iter)
script << *iter + " ";
bash_ast ast(script, std::bind(&bash_ast::parser_builtin_variable_definitions, std::placeholders::_1, false));
ast.interpret_with(_walker);
return result;
}
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