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 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  23 #include <apt-pkg/string_view.h>
  24 #endif
  25
  26 #ifndef APT_8_CLEANER_HEADERS
  27 #include <apt-pkg/indexfile.h>
  28 #endif
  29
  30 class FileFd;
  31
  32 class APT_HIDDEN debListParser : public pkgCacheListParser
  33 {
  34    public:
  35
  36    // Parser Helper
  37    struct WordList
  38    {
  39       const char *Str;
  40       unsigned char Val;
  41    };
  42
  43    private:
  44    /** \brief dpointer placeholder (for later in case we need it) */
  45    void * const d;
  46
  47    protected:
  48    pkgTagFile Tags;
  49    pkgTagSection Section;
  50    map_filesize_t iOffset;
  51
  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
  57 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  58    APT_HIDDEN static bool GrabWord(APT::StringView Word,const WordList *List,unsigned char &Out);
  59 #endif
  60    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
  61
  62    public:
  63
  64    APT_PUBLIC static unsigned char GetPrio(std::string Str);
  65
  66    // These all operate against the current section
  67    virtual std::string Package() APT_OVERRIDE;
  68    virtual std::string Architecture() APT_OVERRIDE;
  69    virtual bool ArchitectureAll() APT_OVERRIDE;
  70    virtual std::string Version() APT_OVERRIDE;
  71    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
  72    virtual std::string Description(std::string const &lang) APT_OVERRIDE;
  73 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  74    APT::StringView Description(APT::StringView lang);
  75 #endif
  76    virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
  77    virtual MD5SumValue Description_md5() APT_OVERRIDE;
  78    virtual unsigned short VersionHash() APT_OVERRIDE;
  79    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
  80    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  81                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
  82    virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
  83    virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
  84
  85    virtual bool Step() APT_OVERRIDE;
  86
  87    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
  88                         std::string const &section);
  89
  90    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  91          std::string &Package,std::string &Ver,unsigned int &Op);
  92    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  93          std::string &Package,std::string &Ver,unsigned int &Op,
  94          bool const &ParseArchFlags);
  95    APT_PUBLIC 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    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  99          std::string &Package,std::string &Ver,unsigned int &Op,
 100          bool const &ParseArchFlags, bool const &StripMultiArch,
 101          bool const &ParseRestrictionsList);
 102
 103 #ifdef APT_PKG_EXPOSE_STRING_VIEW
 104    APT_HIDDEN static const char *ParseDepends(const char *Start,const char *Stop,
 105          APT::StringView &Package,
 106     APT::StringView &Ver,unsigned int &Op,
 107          bool const ParseArchFlags = false, bool StripMultiArch = true,
 108          bool const ParseRestrictionsList = false);
 109 #endif
 110
 111    APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
 112
 113    debListParser(FileFd *File);
 114    virtual ~debListParser();
 115 };
 116
 117 class APT_HIDDEN debDebFileParser : public debListParser
 118 {
 119  private:
 120    std::string DebFile;
 121
 122  public:
 123    debDebFileParser(FileFd *File, std::string const &DebFile);
 124    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
 125                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
 126 };
 127
 128 class APT_HIDDEN debTranslationsParser : public debListParser
 129 {
 130  public:
 131    // a translation can never be a real package
 132    virtual std::string Architecture() APT_OVERRIDE { return ""; }
 133    virtual std::string Version() APT_OVERRIDE { return ""; }
 134
 135    debTranslationsParser(FileFd *File)
 136       : debListParser(File) {};
 137 };
 138
 139 class APT_HIDDEN debStatusListParser : public debListParser
 140 {
 141  public:
 142    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
 143    debStatusListParser(FileFd *File)
 144       : debListParser(File) {};
 145 };
 146 #endif