apt-pkg/deb/deblistparser.h

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 // $Id: deblistparser.h,v 1.9 2001/02/20 07:03:17 jgg Exp $
   4 /* ######################################################################
   5
   6    Debian Package List Parser - This implements the abstract parser
   7    interface for Debian package files
   8
   9    ##################################################################### */
  10                                                                         /*}}}*/
  11 #ifndef PKGLIB_DEBLISTPARSER_H
  12 #define PKGLIB_DEBLISTPARSER_H
  13
  14 #include <apt-pkg/pkgcachegen.h>
  15 #include <apt-pkg/indexfile.h>
  16 #include <apt-pkg/tagfile.h>
  17
  18 class debListParser : public pkgCacheGenerator::ListParser
  19 {
  20    public:
  21
  22    // Parser Helper
  23    struct WordList
  24    {
  25       const char *Str;
  26       unsigned char Val;
  27    };
  28
  29    private:
  30
  31    pkgTagFile Tags;
  32    pkgTagSection Section;
  33    unsigned long iOffset;
  34    string Arch;
  35
  36    unsigned long UniqFindTagWrite(const char *Tag);
  37    bool ParseStatus(pkgCache::PkgIterator Pkg,pkgCache::VerIterator Ver);
  38    bool ParseDepends(pkgCache::VerIterator Ver,const char *Tag,
  39                      unsigned int Type);
  40    bool ParseProvides(pkgCache::VerIterator Ver);
  41    bool ParseTag(pkgCache::PkgIterator Pkg);
  42    static bool GrabWord(string Word,WordList *List,unsigned char &Out);
  43
  44    public:
  45
  46    static unsigned char GetPrio(string Str);
  47
  48    // These all operate against the current section
  49    virtual string Package();
  50    virtual string Version();
  51    virtual bool NewVersion(pkgCache::VerIterator Ver);
  52    virtual string Description();
  53    virtual string DescriptionLanguage();
  54    virtual MD5SumValue Description_md5();
  55    virtual unsigned short VersionHash();
  56    virtual bool UsePackage(pkgCache::PkgIterator Pkg,
  57                            pkgCache::VerIterator Ver);
  58    virtual unsigned long Offset() {return iOffset;};
  59    virtual unsigned long Size() {return Section.size();};
  60
  61    virtual bool Step();
  62
  63    bool LoadReleaseInfo(pkgCache::PkgFileIterator FileI,FileFd &File,
  64                         string section);
  65
  66    static const char *ParseDepends(const char *Start,const char *Stop,
  67                             string &Package,string &Ver,unsigned int &Op,
  68                             bool ParseArchFlags = false);
  69    static const char *ConvertRelation(const char *I,unsigned int &Op);
  70
  71    debListParser(FileFd *File);
  72 };
  73
  74 #endif