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DebDBParser.h

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00001 #ifndef DEBDB_PARSER_H
00002 #define DEBDB_PARSER_H
00003 
00008 /*
00009  * Copyright (C) 2003,2004,2005  Enrico Zini <enrico@debian.org>
00010  *
00011  * This program is free software; you can redistribute it and/or modify
00012  * it under the terms of the GNU General Public License as published by
00013  * the Free Software Foundation; either version 2 of the License, or
00014  * (at your option) any later version.
00015  *
00016  * This program is distributed in the hope that it will be useful,
00017  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00018  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00019  * GNU General Public License for more details.
00020  *
00021  * You should have received a copy of the GNU General Public License
00022  * along with this program; if not, write to the Free Software
00023  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
00024  */
00025 
00026 #include <tagcoll/ParserBase.h>
00027 
00028 #include <map>
00029 
00030 namespace Debtags
00031 {
00032 
00033 /*
00034 class DebDBConsumer
00035 {
00036 public:
00037     virtual void consumeField(const std::string& name, const std::string& val) throw () = 0;
00038     virtual void consumeEndOfRecord() throw () = 0;
00039 };
00040 */
00041 
00045 class DebDBParser
00046 {
00047 protected:
00048     Tagcoll::ParserInput& in;
00049     bool isBOL;
00050     bool isEOF;
00051 
00052     // Eat spaces and empty lines
00053     // Returns the number of '\n' encountered
00054     int eatSpacesAndEmptyLines() throw (Tagcoll::ParserException);
00055 
00056     // Get the ^([A-Za-z0-9]+) field name
00057     std::string getFieldName() throw (Tagcoll::ParserException);
00058 
00059     // Eat the \s*: characters that divide the field name and the field
00060     // data
00061     void eatFieldSep() throw (Tagcoll::ParserException);
00062 
00063     // Get the \s*(.+?)\s*\n of a body line
00064     void appendFieldBody(std::string& body) throw (Tagcoll::ParserException);
00065 
00066 public:
00067     typedef std::map<std::string, std::string> Record;
00068 
00069     DebDBParser(Tagcoll::ParserInput& input) throw (Tagcoll::ParserException);
00070 
00071     const std::string& fileName() const throw () { return in.fileName(); }
00072     int lineNumber() const throw () { return in.lineNumber(); }
00073 
00074     // Read a record and positions itself at the start of the next one
00075     // Returns false when there are no more records available
00076     bool nextRecord(Record& rec) throw (Tagcoll::ParserException);
00077 };
00078 
00079 };
00080 
00081 // vim:set ts=4 sw=4:
00082 #endif

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