LCOV - lcov.info - ept/apt/recordparser.h

LTP GCOV extension - code coverage report
Current view: | directory - ept/apt - recordparser.h
Test: | lcov.info
Date: | 2008-08-14 |  | Instrumented lines: | 8
Code covered: | 100.0 % |  | Executed lines: | 8

           1                 : #ifndef EPT_APT_RECORDPARSER_H
           2                 : #define EPT_APT_RECORDPARSER_H
           3                 :
           4                 : /** \file
           5                 :  * Parser for APT records
           6                 :  */
           7                 :
           8                 : /*
           9                 :  * Copyright (C) 2007  Enrico Zini <enrico@enricozini.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 <vector>
          27                 : #include <string>
          28                 :
          29                 : namespace ept {
          30                 : namespace apt {
          31                 :
          32                 : /**
          33                 :  * Access the fields of a package record contained inside a std::string.
          34                 :  *
          35                 :  * Implementation note: this implementation should take advantage of
          36                 :  * std::string sharing buffer space among them.
          37                 :  */
          38                 : class RecordParser
          39              19 : {
          40                 :         /// Buffer containing the whole record
          41                 :         std::string buffer;
          42                 :
          43                 :         /// End offsets of the various fields in the record
          44                 :         std::vector<size_t> ends;
          45                 :
          46                 :         /// Indexes on the ends vector, sorted by field name
          47                 :         std::vector<size_t> sorted;
          48                 :
          49                 : public:
          50               6 :         RecordParser() {}
          51              13 :         RecordParser(const std::string& str) { scan(str); }
          52                 :
          53                 :         /// Index a new record
          54                 :         void scan(const std::string& str);
          55                 :
          56                 :         /**
          57                 :          * Get the index of the field with the given name.
          58                 :          *
          59                 :          * size() is returned if not found
          60                 :          */
          61                 :         size_t index(const std::string& str) const;
          62                 :
          63                 :         /// Return the field by its index
          64                 :         std::string field(size_t idx) const;
          65                 :
          66                 :         /// Return the name of a field by its index
          67                 :         std::string name(size_t idx) const;
          68                 :
          69                 :         /// Return the content of a field by its index
          70                 :         std::string lookup(size_t idx) const;
          71                 :
          72                 :         /// Return the content of a field by its name
          73           18273 :         std::string lookup(const std::string& name) const { return lookup(index(name)); }
          74                 :
          75                 :         /// Return the content of a field by its index
          76               6 :         std::string operator[](size_t idx) const { return lookup(idx); }
          77                 :
          78                 :         /// Return the content of a field by its name
          79              19 :         std::string operator[](const std::string& name) const { return lookup(name); }
          80                 :
          81                 :         /// Return the entire record
          82                 :         const std::string& record() const { return buffer; }
          83                 :
          84                 :         /// Return the entire record
          85               1 :         std::string record() { return buffer; }
          86                 :
          87                 :         /// Return the number of fields in the record
          88           20972 :         size_t size() const { return ends.size(); }
          89                 : };
          90                 :
          91                 : }
          92                 : }
          93                 :
          94                 : // vim:set ts=4 sw=4:
          95                 : #endif

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