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/tagfile.h>
  16 #include <apt-pkg/md5.h>
  17 #include <apt-pkg/pkgcache.h>
  18
  19 #include <string>
  20 #include <vector>
  21
  22 #ifndef APT_8_CLEANER_HEADERS
  23 #include <apt-pkg/indexfile.h>
  24 #endif
  25
  26 class FileFd;
  27
  28 class debListParser : public pkgCacheGenerator::ListParser
  29 {
  30    public:
  31
  32    // Parser Helper
  33    struct WordList
  34    {
  35       const char *Str;
  36       unsigned char Val;
  37    };
  38
  39    private:
  40    /** \brief dpointer placeholder (for later in case we need it) */
  41    void *d;
  42
  43    protected:
  44    pkgTagFile Tags;
  45    pkgTagSection Section;
  46    unsigned long iOffset;
  47    std::string Arch;
  48    std::vector<std::string> Architectures;
  49    bool MultiArchEnabled;
  50
  51    unsigned long UniqFindTagWrite(const char *Tag);
  52    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  53    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  54                      unsigned int Type);
  55    bool ParseProvides(pkgCache::VerIterator &Ver);
  56    bool NewProvidesAllArch(pkgCache::VerIterator &Ver, std::string const &Package, std::string const &Version);
  57    static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
  58
  59    public:
  60
  61    static unsigned char GetPrio(std::string Str);
  62
  63    // These all operate against the current section
  64    virtual std::string Package();
  65    virtual std::string Architecture();
  66    virtual bool ArchitectureAll();
  67    virtual std::string Version();
  68    virtual bool NewVersion(pkgCache::VerIterator &Ver);
  69    virtual std::string Description();
  70    virtual std::string DescriptionLanguage();
  71    virtual MD5SumValue Description_md5();
  72    virtual unsigned short VersionHash();
  73 #if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
  74    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver);
  75 #endif
  76    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  77                            pkgCache::VerIterator &Ver);
  78    virtual unsigned long Offset() {return iOffset;};
  79    virtual unsigned long Size() {return Section.size();};
  80
  81    virtual bool Step();
  82
  83    bool LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,FileFd &File,
  84                         std::string section);
  85
  86    static const char *ParseDepends(const char *Start,const char *Stop,
  87          std::string &Package,std::string &Ver,unsigned int &Op);
  88    static const char *ParseDepends(const char *Start,const char *Stop,
  89          std::string &Package,std::string &Ver,unsigned int &Op,
  90          bool const &ParseArchFlags);
  91    static const char *ParseDepends(const char *Start,const char *Stop,
  92          std::string &Package,std::string &Ver,unsigned int &Op,
  93          bool const &ParseArchFlags, bool const &StripMultiArch);
  94    static const char *ParseDepends(const char *Start,const char *Stop,
  95          std::string &Package,std::string &Ver,unsigned int &Op,
  96          bool const &ParseArchFlags, bool const &StripMultiArch,
  97          bool const &ParseRestrictionsList);
  98
  99    static const char *ConvertRelation(const char *I,unsigned int &Op);
 100
 101    debListParser(FileFd *File, std::string const &Arch = "");
 102    virtual ~debListParser() {};
 103
 104    private:
 105    unsigned char ParseMultiArch(bool const showErrors);
 106 };
 107
 108 #endif