sbuild-parse-value.h

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00001 /* Copyright © 2005-2007  Roger Leigh <rleigh@debian.org>
00002  *
00003  * schroot is free software; you can redistribute it and/or modify it
00004  * under the terms of the GNU General Public License as published by
00005  * the Free Software Foundation; either version 2 of the License, or
00006  * (at your option) any later version.
00007  *
00008  * schroot is distributed in the hope that it will be useful, but
00009  * WITHOUT ANY WARRANTY; without even the implied warranty of
00010  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00011  * General Public License for more details.
00012  *
00013  * You should have received a copy of the GNU General Public License
00014  * along with this program; if not, write to the Free Software
00015  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
00016  * MA  02111-1307  USA
00017  *
00018  *********************************************************************/
00019 
00020 #ifndef SBUILD_PARSE_VALUE_H
00021 #define SBUILD_PARSE_VALUE_H
00022 
00023 #include <sbuild/sbuild-parse-error.h>
00024 #include <sbuild/sbuild-log.h>
00025 
00026 #include <string>
00027 #include <sstream>
00028 
00029 namespace sbuild
00030 {
00031 
00032   enum parse_value_error_code
00033     {
00034       BAD_VALUE 
00035     };
00036 
00037   typedef parse_error<parse_value_error_code> parse_value_error;
00038 
00045   void
00046   parse_value (std::string const& value,
00047                bool&              parsed_value);
00048 
00055   void
00056   parse_value (std::string const& value,
00057                std::string&       parsed_value);
00058 
00065   template <typename T>
00066   void
00067   parse_value (std::string const& value,
00068                T& parsed_value)
00069   {
00070     std::istringstream is(value);
00071     is.imbue(std::locale::classic());
00072     T tmpval;
00073     if (is >> tmpval)
00074       {
00075         parsed_value = tmpval;
00076         log_debug(DEBUG_NOTICE) << "value=" << parsed_value << std::endl;
00077       }
00078     else
00079       {
00080         log_debug(DEBUG_NOTICE) << "parse error" << std::endl;
00081         throw parse_value_error(value, BAD_VALUE);
00082       }
00083   }
00084 
00085 }
00086 
00087 #endif /* SBUILD_PARSE_VALUE_H */
00088 
00089 /*
00090  * Local Variables:
00091  * mode:C++
00092  * End:
00093  */

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