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 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  54    bool ParseDepends(pkgCache::VerIterator &Ver, APT::StringView Tag,
  55                      unsigned int Type);
  56 #endif
  57    bool ParseProvides(pkgCache::VerIterator &Ver);
  58
  59 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  60    APT_HIDDEN static bool GrabWord(APT::StringView Word,const WordList *List,unsigned char &Out);
  61 #endif
  62    APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
  63
  64    public:
  65
  66    APT_PUBLIC static unsigned char GetPrio(std::string Str);
  67
  68    // These all operate against the current section
  69    virtual std::string Package() APT_OVERRIDE;
  70    virtual std::string Architecture() APT_OVERRIDE;
  71    virtual bool ArchitectureAll() APT_OVERRIDE;
  72    virtual std::string Version() APT_OVERRIDE;
  73    virtual bool NewVersion(pkgCache::VerIterator &Ver) APT_OVERRIDE;
  74    virtual std::string Description(std::string const &lang) APT_OVERRIDE;
  75 #ifdef APT_PKG_EXPOSE_STRING_VIEW
  76    APT::StringView Description(APT::StringView lang);
  77 #endif
  78    virtual std::vector<std::string> AvailableDescriptionLanguages() APT_OVERRIDE;
  79    virtual MD5SumValue Description_md5() APT_OVERRIDE;
  80    virtual unsigned short VersionHash() APT_OVERRIDE;
  81    virtual bool SameVersion(unsigned short const Hash, pkgCache::VerIterator const &Ver) APT_OVERRIDE;
  82    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
  83                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
  84    virtual map_filesize_t Offset() APT_OVERRIDE {return iOffset;};
  85    virtual map_filesize_t Size() APT_OVERRIDE {return Section.size();};
  86
  87    virtual bool Step() APT_OVERRIDE;
  88
  89    bool LoadReleaseInfo(pkgCache::RlsFileIterator &FileI,FileFd &File,
  90                         std::string const &section);
  91
  92    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  93          std::string &Package,std::string &Ver,unsigned int &Op);
  94    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  95          std::string &Package,std::string &Ver,unsigned int &Op,
  96          bool const &ParseArchFlags);
  97    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
  98          std::string &Package,std::string &Ver,unsigned int &Op,
  99          bool const &ParseArchFlags, bool const &StripMultiArch);
 100    APT_PUBLIC static const char *ParseDepends(const char *Start,const char *Stop,
 101          std::string &Package,std::string &Ver,unsigned int &Op,
 102          bool const &ParseArchFlags, bool const &StripMultiArch,
 103          bool const &ParseRestrictionsList);
 104
 105 #ifdef APT_PKG_EXPOSE_STRING_VIEW
 106    APT_HIDDEN static const char *ParseDepends(const char *Start,const char *Stop,
 107          APT::StringView &Package,
 108     APT::StringView &Ver,unsigned int &Op,
 109          bool const ParseArchFlags = false, bool StripMultiArch = true,
 110          bool const ParseRestrictionsList = false);
 111 #endif
 112
 113    APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
 114
 115    debListParser(FileFd *File);
 116    virtual ~debListParser();
 117 };
 118
 119 class APT_HIDDEN debDebFileParser : public debListParser
 120 {
 121  private:
 122    std::string DebFile;
 123
 124  public:
 125    debDebFileParser(FileFd *File, std::string const &DebFile);
 126    virtual bool UsePackage(pkgCache::PkgIterator &Pkg,
 127                            pkgCache::VerIterator &Ver) APT_OVERRIDE;
 128 };
 129
 130 class APT_HIDDEN debTranslationsParser : public debListParser
 131 {
 132  public:
 133    // a translation can never be a real package
 134    virtual std::string Architecture() APT_OVERRIDE { return ""; }
 135    virtual std::string Version() APT_OVERRIDE { return ""; }
 136
 137    debTranslationsParser(FileFd *File)
 138       : debListParser(File) {};
 139 };
 140
 141 class APT_HIDDEN debStatusListParser : public debListParser
 142 {
 143  public:
 144    virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
 145    debStatusListParser(FileFd *File)
 146       : debListParser(File) {};
 147 };
 148 #endif