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    static bool GrabWord(string Word,WordList *List,unsigned char &Out);
  42
  43    public:
  44
  45    static unsigned char GetPrio(string Str);
  46
  47    // These all operate against the current section
  48    virtual string Package();
  49    virtual string Version();
  50    virtual bool NewVersion(pkgCache::VerIterator Ver);
  51    virtual string Description();
  52    virtual string DescriptionLanguage();
  53    virtual MD5SumValue Description_md5();
  54    virtual unsigned short VersionHash();
  55    virtual bool UsePackage(pkgCache::PkgIterator Pkg,
  56                            pkgCache::VerIterator Ver);
  57    virtual unsigned long Offset() {return iOffset;};
  58    virtual unsigned long Size() {return Section.size();};
  59
  60    virtual bool Step();
  61
  62    bool LoadReleaseInfo(pkgCache::PkgFileIterator FileI,FileFd &File);
  63
  64    static const char *ParseDepends(const char *Start,const char *Stop,
  65                             string &Package,string &Ver,unsigned int &Op,
  66                             bool ParseArchFlags = false);
  67    static const char *ConvertRelation(const char *I,unsigned int &Op);
  68
  69    debListParser(FileFd *File);
  70 };
  71
  72 #endif