Port to CMake, get rid of os_int.h.

[stg.git] / sgconf / options.h

diff --git a/sgconf/options.h b/sgconf/options.h
new file mode 100644 (file)
index 0000000..c00707b
--- /dev/null
+++ b/sgconf/options.h
@@ -0,0 +1,120 @@
+/*
+ *    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>
+ */
+
+#ifndef __STG_SGCONF_OPTIONS_H__
+#define __STG_SGCONF_OPTIONS_H__
+
+#include <string>
+#include <vector>
+#include <list>
+#include <utility>
+#include <stdexcept>
+#include <cstddef> // size_t
+
+namespace SGCONF
+{
+
+class ACTION;
+struct PARSER_STATE;
+
+class OPTION
+{
+    public:
+        OPTION(const std::string & shortName,
+               const std::string & longName,
+               ACTION * action,
+               const std::string & description);
+        OPTION(const std::string & longName,
+               ACTION * action,
+               const std::string & description);
+        OPTION(const OPTION & rhs);
+        ~OPTION();
+
+        OPTION & operator=(const OPTION & rhs);
+
+        void Help(size_t level = 0) const;
+        PARSER_STATE Parse(int argc, char ** argv, void * data);
+        void ParseValue(const std::string & value);
+        bool Check(const char * arg) const;
+        const std::string & Name() const { return m_longName; }
+
+        class ERROR : public std::runtime_error
+        {
+            public:
+                ERROR(const std::string & message)
+                    : std::runtime_error(message.c_str()) {}
+        };
+
+    private:
+        std::string m_shortName;
+        std::string m_longName;
+        ACTION * m_action;
+        std::string m_description;
+};
+
+class OPTION_BLOCK
+{
+    public:
+        OPTION_BLOCK() {}
+        OPTION_BLOCK(const std::string & description)
+            : m_description(description) {}
+        OPTION_BLOCK & Add(const std::string & shortName,
+                           const std::string & longName,
+                           ACTION * action,
+                           const std::string & description);
+        OPTION_BLOCK & Add(const std::string & longName,
+                           ACTION * action,
+                           const std::string & description);
+
+        void Help(size_t level) const;
+
+        PARSER_STATE Parse(int argc, char ** argv, void * data = NULL);
+        void ParseFile(const std::string & filePath);
+
+        class ERROR : public std::runtime_error
+        {
+            public:
+                ERROR(const std::string & message)
+                    : std::runtime_error(message.c_str()) {}
+        };
+
+    private:
+        std::vector<OPTION> m_options;
+        std::string m_description;
+
+        void OptionCallback(const std::string & key, const std::string & value);
+};
+
+class OPTION_BLOCKS
+{
+    public:
+        OPTION_BLOCK & Add(const std::string & description)
+        { m_blocks.push_back(OPTION_BLOCK(description)); return m_blocks.back(); }
+        void Add(const OPTION_BLOCK & block) { m_blocks.push_back(block); }
+        void Help(size_t level) const;
+        PARSER_STATE Parse(int argc, char ** argv);
+
+    private:
+        std::list<OPTION_BLOCK> m_blocks;
+};
+
+} // namespace SGCONF
+
+#endif