Base revisions

Author: jgg
Date: 1998-07-02 02:58:12 GMT
Base revisions

1 files changed, 69 insertions, 0 deletions

diff --git a/apt-pkg/pkgcachegen.h b/apt-pkg/pkgcachegen.h
new file mode 100644
index 000000000..1385ab964
--- /dev/null
+++ b/apt-pkg/pkgcachegen.h
@@ -0,0 +1,69 @@
+// -*- mode: cpp; mode: fold -*-
+// Description								/*{{{*/
+// $Id: pkgcachegen.h,v 1.1 1998/07/02 02:58:13 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
+
+#include <pkglib/pkgcache.h>
+
+class pkgCacheGenerator
+{
+   public:
+   
+   class ListParser;
+   
+   protected:
+   
+   DynamicMMap &Map;
+   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,unsigned long Next);
+
+   public:
+   
+   // This is the abstract package list parser class.
+   class ListParser
+   {
+      pkgCacheGenerator *Owner;
+      friend pkgCacheGenerator;
+      
+      protected:
+      
+      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);};
+
+      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 NewPackage(pkgCache::PkgIterator Pkg) = 0;
+      virtual bool UsePackage(pkgCache::PkgIterator Pkg) = 0;
+      
+      virtual bool Step() = 0;
+   };
+   friend ListParser;
+
+   bool SelectFile(string File,unsigned long Flags = 0);
+   bool MergeList(ListParser &List);
+   
+   pkgCacheGenerator(DynamicMMap &Map);
+   ~pkgCacheGenerator();
+};
+
+#endif