LCOV - lcov.info - /usr/include/tagcoll-2.0.11/tagcoll/input/base.h

LTP GCOV extension - code coverage report
Current view: | directory - usr/include/tagcoll-2.0.11/tagcoll/input - base.h
Test: | lcov.info
Date: | 2008-08-14 |  | Instrumented lines: | 14
Code covered: | 7.1 % |  | Executed lines: | 1

           1                 : #ifndef TAGCOLL_INPUT_BASE_H
           2                 : #define TAGCOLL_INPUT_BASE_H
           3                 :
           4                 : /** \file
           5                 :  * Base class for parsers
           6                 :  */
           7                 :
           8                 : /*
           9                 :  * Copyright (C) 2003,2004,2005,2006  Enrico Zini <enrico@debian.org>
          10                 :  *
          11                 :  * This library is free software; you can redistribute it and/or
          12                 :  * modify it under the terms of the GNU Lesser General Public
          13                 :  * License as published by the Free Software Foundation; either
          14                 :  * version 2.1 of the License, or (at your option) any later version.
          15                 :  *
          16                 :  * This library is distributed in the hope that it will be useful,
          17                 :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
          18                 :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
          19                 :  * Lesser General Public License for more details.
          20                 :  *
          21                 :  * You should have received a copy of the GNU Lesser General Public
          22                 :  * License along with this library; if not, write to the Free Software
          23                 :  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307  USA
          24                 :  */
          25                 :
          26                 : #include <string>
          27                 : #include <wibble/exception.h>
          28                 :
          29                 : namespace tagcoll {
          30                 :
          31                 : namespace input {
          32                 : class Input;
          33                 : }
          34                 :
          35                 : namespace exception {
          36                 :
          37                 : /**
          38                 :  * Base exception for parser errors
          39                 :  */
          40                 : class Input : public wibble::exception::Consistency
          41               0 : {
          42                 : protected:
          43                 :         std::string _file;
          44                 :         int _line;
          45                 :
          46                 :         std::string makeContext(const std::string& file, int line);
          47                 :
          48                 : public:
          49                 :         Input(const tagcoll::input::Input& input, const std::string& message) throw ();
          50                 :         Input(const std::string& file, int line, const std::string& message) throw ()
          51                 :                 : wibble::exception::Consistency(makeContext(file, line), message),
          52                 :                  _file(file), _line(line) {}
          53               0 :         Input(int line, const std::string& message) throw ()
          54               0 :                 : wibble::exception::Consistency(makeContext(std::string(), line), message),
          55               0 :                  _line(line) {}
          56                 :         Input(const std::string& message) throw ()
          57                 :                 : wibble::exception::Consistency(makeContext(std::string(), -1), message),
          58                 :                  _line(-1) {}
          59               0 :         virtual ~Input() throw () {}
          60                 :
          61                 :         int line() const throw () { return _line; }
          62               0 :         int line(int line) throw () { return _line = line; }
          63                 :
          64                 :         const std::string& file() const throw () { return _file; }
          65                 :         std::string file() throw () { return _file; }
          66                 :         std::string file(const std::string file) throw () { return _file = file; }
          67                 :
          68               0 :         virtual const char* type() const throw () { return "Input"; }
          69                 : };
          70                 :
          71                 : /**
          72                 :  * Exception thrown in case of problems accessing the input of the parser
          73                 :  */
          74                 : class Parser : public Input
          75               0 : {
          76                 : public:
          77               0 :         Parser(const tagcoll::input::Input& input, const std::string& message) throw ()
          78               0 :                 : Input(input, message) {}
          79               0 :         virtual ~Parser() throw () {}
          80                 :
          81               0 :         virtual const char* type() const throw ()
          82                 :         {
          83               0 :                 return "Parser";
          84                 :         }
          85                 : };
          86                 :
          87                 : }
          88                 :
          89                 : namespace input {
          90                 :
          91                 : /**
          92                 :  * Generic interface for parser input readers.
          93                 :  *
          94                 :  * It encapsulates and hides the reading machinery.  It can be implemented as a
          95                 :  * file read, a stream read, a decompressing file read, a network read or
          96                 :  * whatever else is needed.
          97                 :  */
          98                 : class Input
          99                 : {
         100                 : public:
         101                 :         static const int Eof = -1;
         102                 :
         103                 :         Input() {}
         104            1305 :         virtual ~Input() {}
         105                 :
         106                 :         virtual const std::string& fileName() const = 0;
         107                 :         virtual int lineNumber() const = 0;
         108                 :         virtual int nextChar()  = 0;
         109                 :         virtual void pushChar(int c)  = 0;
         110                 : };
         111                 :
         112                 : }
         113                 :
         114                 : }
         115                 :
         116                 : // vim:set ts=4 sw=4:
         117                 : #endif

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