--- /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>
+ */
+
+#pragma once
+
+#include "action.h"
+#include "options.h"
+#include "parser_state.h"
+
+#include "stg/common.h"
+#include "stg/optional.h"
+
+#include <string>
+
+#include <cassert>
+
+namespace SGCONF
+{
+
+typedef void (* FUNC0)();
+
+template <typename F>
+class FUNC0_ACTION : public ACTION
+{
+ public:
+ FUNC0_ACTION(const F & func) : m_func(func) {}
+
+ virtual ACTION * Clone() const { return new FUNC0_ACTION<F>(*this); }
+
+ virtual std::string ParamDescription() const { return ""; }
+ virtual std::string DefaultDescription() const { return ""; }
+ virtual OPTION_BLOCK & Suboptions() { return m_suboptions; }
+ virtual PARSER_STATE Parse(int argc, char ** argv, void * /*data*/)
+ {
+ m_func();
+ return PARSER_STATE(true, argc, argv);
+ }
+
+ private:
+ F m_func;
+ OPTION_BLOCK m_suboptions;
+};
+
+template <typename F>
+inline
+FUNC0_ACTION<F> * MakeFunc0Action(F func)
+{
+return new FUNC0_ACTION<F>(func);
+}
+
+template <typename T>
+class PARAM_ACTION : public ACTION
+{
+ public:
+ PARAM_ACTION(STG::Optional<T> & param,
+ const T & defaultValue,
+ const std::string & paramDescription)
+ : m_param(param),
+ m_defaltValue(defaultValue),
+ m_description(paramDescription),
+ m_hasDefault(true)
+ {}
+ PARAM_ACTION(STG::Optional<T> & param)
+ : m_param(param),
+ m_hasDefault(false)
+ {}
+ PARAM_ACTION(STG::Optional<T> & param,
+ const std::string & paramDescription)
+ : m_param(param),
+ m_description(paramDescription),
+ m_hasDefault(false)
+ {}
+
+ virtual ACTION * Clone() const { return new PARAM_ACTION<T>(*this); }
+
+ virtual std::string ParamDescription() const { return m_description; }
+ virtual std::string DefaultDescription() const;
+ virtual OPTION_BLOCK & Suboptions() { return m_suboptions; }
+ virtual PARSER_STATE Parse(int argc, char ** argv, void * /*data*/);
+ virtual void ParseValue(const std::string & value);
+
+ private:
+ STG::Optional<T> & m_param;
+ T m_defaltValue;
+ std::string m_description;
+ bool m_hasDefault;
+ OPTION_BLOCK m_suboptions;
+};
+
+template <typename T>
+inline
+std::string PARAM_ACTION<T>::DefaultDescription() const
+{
+return m_hasDefault ? " (default: '" + std::to_string(m_defaltValue) + "')"
+ : "";
+}
+
+template <>
+inline
+std::string PARAM_ACTION<std::string>::DefaultDescription() const
+{
+return m_hasDefault ? " (default: '" + m_defaltValue + "')"
+ : "";
+}
+
+template <typename T>
+inline
+PARSER_STATE PARAM_ACTION<T>::Parse(int argc, char ** argv, void * /*data*/)
+{
+if (argc == 0 ||
+ argv == NULL ||
+ *argv == NULL)
+ throw ERROR("Missing argument.");
+T value;
+if (str2x(*argv, value))
+ throw ERROR(std::string("Bad argument: '") + *argv + "'");
+m_param = value;
+return PARSER_STATE(false, --argc, ++argv);
+}
+
+template <>
+inline
+PARSER_STATE PARAM_ACTION<bool>::Parse(int argc, char ** argv, void * /*data*/)
+{
+m_param = true;
+return PARSER_STATE(false, argc, argv);
+}
+
+template <typename T>
+inline
+void PARAM_ACTION<T>::ParseValue(const std::string & stringValue)
+{
+if (stringValue.empty())
+ throw ERROR("Missing value.");
+T value;
+if (str2x(stringValue, value))
+ throw ERROR(std::string("Bad value: '") + stringValue + "'");
+m_param = value;
+}
+
+template <>
+inline
+void PARAM_ACTION<std::string>::ParseValue(const std::string & stringValue)
+{
+m_param = stringValue;
+}
+
+template <>
+inline
+PARSER_STATE PARAM_ACTION<std::string>::Parse(int argc, char ** argv, void * /*data*/)
+{
+if (argc == 0 ||
+ argv == NULL ||
+ *argv == NULL)
+ throw ERROR("Missing argument.");
+m_param = *argv;
+return PARSER_STATE(false, --argc, ++argv);
+}
+
+template <typename T>
+inline
+PARAM_ACTION<T> * MakeParamAction(STG::Optional<T> & param,
+ const T & defaultValue,
+ const std::string & paramDescription)
+{
+return new PARAM_ACTION<T>(param, defaultValue, paramDescription);
+}
+
+template <typename T>
+inline
+PARAM_ACTION<T> * MakeParamAction(STG::Optional<T> & param)
+{
+return new PARAM_ACTION<T>(param);
+}
+
+template <typename T>
+inline
+PARAM_ACTION<T> * MakeParamAction(STG::Optional<T> & param,
+ const std::string & paramDescription)
+{
+return new PARAM_ACTION<T>(param, paramDescription);
+}
+
+class KV_ACTION : public ACTION
+{
+ public:
+ KV_ACTION(const std::string & name,
+ const std::string & paramDescription)
+ : m_name(name),
+ m_description(paramDescription)
+ {}
+
+ virtual ACTION * Clone() const { return new KV_ACTION(*this); }
+
+ virtual std::string ParamDescription() const { return m_description; }
+ virtual std::string DefaultDescription() const { return ""; }
+ virtual OPTION_BLOCK & Suboptions() { return m_suboptions; }
+ virtual PARSER_STATE Parse(int argc, char ** argv, void * data);
+
+ private:
+ std::string m_name;
+ std::string m_description;
+ OPTION_BLOCK m_suboptions;
+};
+
+inline
+PARSER_STATE KV_ACTION::Parse(int argc, char ** argv, void * data)
+{
+if (argc == 0 ||
+ argv == NULL ||
+ *argv == NULL)
+ throw ERROR("Missing argument.");
+assert(data != NULL && "Expecting container pointer.");
+std::map<std::string, std::string> & kvs = *static_cast<std::map<std::string, std::string>*>(data);
+kvs[m_name] = *argv;
+return PARSER_STATE(false, --argc, ++argv);
+}
+
+inline
+KV_ACTION * MakeKVAction(const std::string & name,
+ const std::string & paramDescription)
+{
+return new KV_ACTION(name, paramDescription);
+}
+
+} // namespace SGCONF
git.stg.codes / stg.git / blobdiff