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 #include <apt-pkg/macros.h>
  19
  20 #include <string>
  21 #include <vector>
  22
  23 #ifndef APT_8_CLEANER_HEADERS
  24 #include <apt-pkg/indexfile.h>
  25 #endif
  26
  27 class FileFd;
  28
  29 class debListParser : public pkgCacheGenerator::ListParser
  30 {
  31    public:
  32
  33    // Parser Helper
  34    struct WordList
  35    {
  36       const char *Str;
  37       unsigned char Val;
  38    };
  39
  40    private:
  41    /** \brief dpointer placeholder (for later in case we need it) */
  42    void *d;
  43
  44    protected:
  45    pkgTagFile Tags;
  46    pkgTagSection Section;
  47    unsigned long iOffset;
  48    std::string Arch;
  49    std::vector<std::string> Architectures;
  50    bool MultiArchEnabled;
  51
  52    unsigned long UniqFindTagWrite(const char *Tag);
  53    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
  54    bool ParseDepends(pkgCache::VerIterator &Ver,const char *Tag,
  55                      unsigned int Type);
  56    bool ParseProvides(pkgCache::VerIterator &Ver);
  57    bool NewProvidesAllArch(pkgCache::VerIterator &Ver, std::string const &Package, std::string const &Version);
  58    static bool GrabWord(std::string Word,WordList *List,unsigned char &Out);
  59
  60    public:
  61
  62    static unsigned char GetPrio(std::string Str);
  63
  64    // These all operate against the current section
  65    virtual std::string Package();
  66    virtual std::string Architecture();
  67    virtual bool ArchitectureAll();
  68    virtual std::string Version();
  69    virtual bool NewVersion(pkgCache::VerIterator &Ver);
  70    virtual std::string Description();
  71    virtual std::string DescriptionLanguage();
  72    virtual MD5SumValue Description_md5();
  73    virtual unsigned short VersionHash();
  74 #if (APT_PKG_MAJOR >= 4 && APT_PKG_MINOR >= 13)
  75    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver);
  76 #endif
  77    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  78                            pkgCache::VerIterator &Ver);
  79    virtual unsigned long Offset() {return iOffset;};
  80    virtual unsigned long Size() {return Section.size();};
  81
  82    virtual bool Step();
  83
  84    bool LoadReleaseInfo(pkgCache::PkgFileIterator &FileI,FileFd &File,
  85                         std::string section);
  86
  87    static const char *ParseDepends(const char *Start,const char *Stop,
  88          std::string &Package,std::string &Ver,unsigned int &Op);
  89    static const char *ParseDepends(const char *Start,const char *Stop,
  90          std::string &Package,std::string &Ver,unsigned int &Op,
  91          bool const &ParseArchFlags);
  92    static const char *ParseDepends(const char *Start,const char *Stop,
  93          std::string &Package,std::string &Ver,unsigned int &Op,
  94          bool const &ParseArchFlags, bool const &StripMultiArch);
  95    static const char *ParseDepends(const char *Start,const char *Stop,
  96          std::string &Package,std::string &Ver,unsigned int &Op,
  97          bool const &ParseArchFlags, bool const &StripMultiArch,
  98          bool const &ParseRestrictionsList);
  99
 100    static const char *ConvertRelation(const char *I,unsigned int &Op);
 101
 102    debListParser(FileFd *File, std::string const &Arch = "");
 103    virtual ~debListParser() {};
 104
 105    private:
 106    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
 107 };
 108
 109 class debTranslationsParser : public debListParser
 110 {
 111  public:
 112    // a translation can never be a real package
 113    virtual std::string Architecture() { return ""; }
 114    virtual std::string Version() { return ""; }
 115
 116    debTranslationsParser(FileFd *File, std::string const &Arch = "")
 117       : debListParser(File, Arch) {};
 118 };
 119
 120 #endif