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// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
// $Id: pkgcachegen.h,v 1.4 1998/07/07 04:17:05 jgg Exp $
/* ######################################################################
Package Cache Generator - Generator for the cache structure.
This builds the cache structure from the abstract package list parser.
##################################################################### */
/*}}}*/
// Header section: pkglib
#ifndef PKGLIB_PKGCACHEGEN_H
#define PKGLIB_PKGCACHEGEN_H
#ifdef __GNUG__
#pragma interface "pkglib/pkgcachegen.h"
#endif
#include <pkglib/pkgcache.h>
class pkgCacheGenerator
{
public:
class ListParser;
protected:
DynamicMMap ⤅
pkgCache Cache;
string PkgFileName;
pkgCache::PackageFile *CurrentFile;
bool NewPackage(pkgCache::PkgIterator &Pkg,string Pkg);
bool NewFileVer(pkgCache::VerIterator &Ver,ListParser &List);
unsigned long NewVersion(pkgCache::VerIterator &Ver,string VerStr,unsigned long Next);
unsigned long WriteUniqString(const char *S,unsigned int Size);
inline unsigned long WriteUniqString(string S) {return WriteUniqString(S);};
public:
// This is the abstract package list parser class.
class ListParser
{
pkgCacheGenerator *Owner;
friend pkgCacheGenerator;
protected:
inline unsigned long WriteUniqString(string S) {return Owner->WriteUniqString(S);};
inline unsigned long WriteUniqString(const char *S,unsigned int Size) {return Owner->WriteUniqString(S,Size);};
inline unsigned long WriteString(string S) {return Owner->Map.WriteString(S);};
inline unsigned long WriteString(const char *S,unsigned int Size) {return Owner->Map.WriteString(S,Size);};
bool NewDepends(pkgCache::VerIterator Ver,string Package,
string Version,unsigned int Op,
unsigned int Type);
bool NewProvides(pkgCache::VerIterator Ver,string Package,string Version);
public:
// These all operate against the current section
virtual string Package() = 0;
virtual string Version() = 0;
virtual bool NewVersion(pkgCache::VerIterator Ver) = 0;
virtual bool UsePackage(pkgCache::PkgIterator Pkg,
pkgCache::VerIterator Ver) = 0;
virtual unsigned long Offset() = 0;
virtual unsigned long Size() = 0;
virtual bool Step() = 0;
virtual ~ListParser() {};
};
friend ListParser;
bool SelectFile(string File,unsigned long Flags = 0);
bool MergeList(ListParser &List);
pkgCacheGenerator(DynamicMMap &Map);
~pkgCacheGenerator();
};
#endif
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