config_ctx.hpp

// (C) 2016 Leonardo Silvestri
//
// This file is part of ztsdb.
//
// ztsdb 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 3 of the License, or
// (at your option) any later version.
//
// ztsdb 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 ztsdb.  If not, see <http://www.gnu.org/licenses/>.
 
 
#ifndef CONFIG_CTX_HPP
#define CONFIG_CTX_HPP
 
 
#include <map>
#include <boost/filesystem.hpp>
#include "juice/variant.hpp"
#include "config.hpp"
#include "config_parser/cfgparser.hpp"
 
 
// this tells the lexer to replace its own definition of yylex by ours (so we can pass in 
// the CfgCtx parameter which is what makes it reentrant):
#undef YY_DECL
#define YY_DECL cfgyy::parser::symbol_type cfgyylex(cfg::CfgCtx& ctx, yyscan_t yyscanner)
YY_DECL;
 
 
namespace fsys = boost::filesystem;
 
 
namespace cfg {
 
  const void read(CfgMap& cfgmap, const fsys::path& p);
  
 
  struct CfgCtx {
 
    struct NoConfigFile : std::exception { };
 
    CfgCtx(CfgMap& cfgmap_p) : cfgmap(cfgmap_p) { }
    
    void add(const kv_t& kv);
    
    int parsefile(const std::string& filename);
 
    int parse(const std::string& s);
 
    void error(const cfgyy::location& l, const std::string& m);
    
    // The name of the file being parsed.
    // Used later to pass the file name to the location tracker.
    std::string file;
 
    cfgyy::parser::location_type yylloc;
 
    std::string string_literal;
    cfgyy::parser::location_type string_literal_yylloc;
  private:
    CfgMap& cfgmap;
  };
}
 
#endif