+++ /dev/null
-/*
- * This program 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.
- *
- * This program 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, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-/*
- * Author : Maxim Mamontov <faust@stargazer.dp.ua>
- */
-
-#include "options.h"
-
-#include "action.h"
-#include "parser_state.h"
-
-#include "stg/common.h"
-
-#include <fstream>
-#include <sstream>
-#include <iostream>
-#include <functional>
-#include <algorithm>
-
-#include <unistd.h>
-
-namespace
-{
-
-template <class C>
-void ReadConfigFile(const std::string & filePath, void (C::* callback)(const std::string&, const std::string&), C * obj)
-{
-std::ifstream stream(filePath.c_str());
-std::string line;
-size_t num = 0;
-while (std::getline(stream, line))
- {
- ++num;
- line = Trim(line);
- std::string::size_type pos = line.find_first_of('#');
- if (pos != std::string::npos)
- line = line.substr(0, pos);
- if (line.empty())
- continue;
- pos = line.find_first_of('=');
- if (pos == std::string::npos)
- {
- std::ostringstream error;
- error << "Bad file format, missing '=' in '" << filePath << ":" << num << "'.";
- throw std::runtime_error(error.str().c_str());
- }
- (obj->*callback)(Trim(line.substr(0, pos)), Trim(line.substr(pos + 1, line.length() - pos - 1)));
- }
-}
-
-} // namespace anonymous
-
-using SGCONF::OPTION;
-using SGCONF::OPTION_BLOCK;
-using SGCONF::OPTION_BLOCKS;
-using SGCONF::ACTION;
-using SGCONF::PARSER_STATE;
-
-OPTION::OPTION(const std::string & shortName,
- const std::string & longName,
- ACTION * action,
- const std::string & description)
- : m_shortName(shortName),
- m_longName(longName),
- m_action(action),
- m_description(description)
-{
-}
-
-OPTION::OPTION(const std::string & longName,
- ACTION * action,
- const std::string & description)
- : m_longName(longName),
- m_action(action),
- m_description(description)
-{
-}
-
-OPTION::OPTION(const OPTION & rhs)
- : m_shortName(rhs.m_shortName),
- m_longName(rhs.m_longName),
- m_action(rhs.m_action->Clone()),
- m_description(rhs.m_description)
-{
-}
-
-OPTION::~OPTION()
-{
-delete m_action;
-}
-
-OPTION & OPTION::operator=(const OPTION & rhs)
-{
-m_shortName = rhs.m_shortName;
-m_longName = rhs.m_longName;
-m_action = rhs.m_action->Clone();
-m_description = rhs.m_description;
-return *this;
-}
-
-void OPTION::Help(size_t level) const
-{
-if (!m_action)
- throw ERROR("Option is not defined.");
-std::string indent(level, '\t');
-std::cout << indent;
-if (!m_shortName.empty())
- std::cout << "-" << m_shortName << ", ";
-std::cout << "--" << m_longName << " " << m_action->ParamDescription()
- << "\t" << m_description << m_action->DefaultDescription() << "\n";
-m_action->Suboptions().Help(level);
-}
-
-bool OPTION::Check(const char * arg) const
-{
-if (arg == NULL)
- return false;
-
-if (*arg++ != '-')
- return false;
-
-if (*arg == '-')
-{
- return m_longName == arg + 1;
-}
-
-return m_shortName == arg;
-}
-
-PARSER_STATE OPTION::Parse(int argc, char ** argv, void * data)
-{
-if (!m_action)
- throw ERROR("Option is not defined.");
-try
- {
- return m_action->Parse(argc, argv, data);
- }
-catch (const ACTION::ERROR & ex)
- {
- if (m_longName.empty())
- throw ERROR("-" + m_shortName + ": " + ex.what());
- else
- throw m_shortName.empty() ? ERROR("--" + m_longName + ": " + ex.what())
- : ERROR("--" + m_longName + ", -" + m_shortName + ": " + ex.what());
- }
-}
-
-void OPTION::ParseValue(const std::string & value)
-{
-if (!m_action)
- throw ERROR("Option is not defined.");
-try
- {
- return m_action->ParseValue(value);
- }
-catch (const ACTION::ERROR & ex)
- {
- throw ERROR(m_longName + ": " + ex.what());
- }
-}
-
-OPTION_BLOCK & OPTION_BLOCK::Add(const std::string & shortName,
- const std::string & longName,
- ACTION * action,
- const std::string & description)
-{
-m_options.push_back(OPTION(shortName, longName, action, description));
-return *this;
-}
-
-OPTION_BLOCK & OPTION_BLOCK::Add(const std::string & longName,
- ACTION * action,
- const std::string & description)
-{
-m_options.push_back(OPTION(longName, action, description));
-return *this;
-}
-
-void OPTION_BLOCK::Help(size_t level) const
-{
-if (m_options.empty())
- return;
-if (!m_description.empty())
- std::cout << m_description << ":\n";
-std::for_each(m_options.begin(),
- m_options.end(),
- [&level](const auto& opt){ opt.Help(level + 1); });
-}
-
-PARSER_STATE OPTION_BLOCK::Parse(int argc, char ** argv, void * data)
-{
-PARSER_STATE state(false, argc, argv);
-if (state.argc == 0)
- return state;
-while (state.argc > 0 && !state.stop)
- {
- const auto it = std::find_if(m_options.begin(), m_options.end(), [&state](const auto& opt){ return opt.Check(*state.argv); });
- if (it != m_options.end())
- state = it->Parse(--state.argc, ++state.argv, data);
- else
- break;
- }
-return state;
-}
-
-void OPTION_BLOCK::ParseFile(const std::string & filePath)
-{
-if (access(filePath.c_str(), R_OK))
- throw ERROR("File '" + filePath + "' does not exists.");
-ReadConfigFile(filePath, &OPTION_BLOCK::OptionCallback, this);
-}
-
-void OPTION_BLOCK::OptionCallback(const std::string & key, const std::string & value)
-{
-for (std::vector<OPTION>::iterator it = m_options.begin(); it != m_options.end(); ++it)
- if (it->Name() == key)
- it->ParseValue(value);
-}
-
-void OPTION_BLOCKS::Help(size_t level) const
-{
-std::list<OPTION_BLOCK>::const_iterator it(m_blocks.begin());
-while (it != m_blocks.end())
- {
- it->Help(level);
- std::cout << "\n";
- ++it;
- }
-}
-
-PARSER_STATE OPTION_BLOCKS::Parse(int argc, char ** argv)
-{
-PARSER_STATE state(false, argc, argv);
-std::list<OPTION_BLOCK>::iterator it(m_blocks.begin());
-while (state.argc > 0 && !state.stop && it != m_blocks.end())
- {
- state = it->Parse(state.argc, state.argv);
- ++it;
- }
-return state;
-}
git.stg.codes / stg.git / blobdiff