apt-pkg/deb/deblistparser.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: deblistparser.h,v 1.3 1998/07/05 05:34:01 jgg Exp $
   4 /* ######################################################################
   5
   6    Debian Package List Parser - This implements the abstract parser
   7    interface for Debian package files
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 // Header section: pkglib
  12 #ifndef PKGLIB_DEBLISTPARSER_H
  13 #define PKGLIB_DEBLISTPARSER_H
  14
  15 #include <pkglib/pkgcachegen.h>
  16 #include <pkglib/tagfile.h>
  17
  18 class debListParser : public pkgCacheGenerator::ListParser
  19 {
  20    pkgTagFile Tags;
  21    pkgTagSection Section;
  22    unsigned long iOffset;
  23
  24    // Parser Helper
  25    struct WordList
  26    {
  27       char *Str;
  28       unsigned char Val;
  29    };
  30
  31    string FindTag(const char *Tag);
  32    signed long FindTagI(const char *Tag,signed long Default = 0);
  33    unsigned long UniqFindTagWrite(const char *Tag);
  34    bool HandleFlag(const char *Tag,unsigned long &Flags,unsigned long Flag);
  35    bool ParseStatus(pkgCache::PkgIterator Pkg,pkgCache::VerIterator Ver);
  36    const char *ParseDepends(const char *Start,const char *Stop,
  37                             string &Package,string &Ver,unsigned int &Op);
  38    bool ParseDepends(pkgCache::VerIterator Ver,const char *Tag,
  39                      unsigned int Type);
  40    bool ParseProvides(pkgCache::VerIterator Ver);
  41    bool GrabWord(string Word,WordList *List,int Count,unsigned char &Out);
  42
  43    public:
  44
  45    // These all operate against the current section
  46    virtual string Package();
  47    virtual string Version();
  48    virtual bool NewVersion(pkgCache::VerIterator Ver);
  49    virtual bool UsePackage(pkgCache::PkgIterator Pkg,
  50                            pkgCache::VerIterator Ver);
  51    virtual unsigned long Offset() {return iOffset;};
  52    virtual unsigned long Size() {return Section.size();};
  53
  54    virtual bool Step();
  55
  56    debListParser(File &File);
  57 };
  58
  59 #endif