deblistparser.h
// -*- mode: cpp; mode: fold -*-
// Description /*{{{*/
/* ######################################################################
Debian Package List Parser - This implements the abstract parser
interface for Debian package files
##################################################################### */
/*}}}*/
#ifndef PKGLIB_DEBLISTPARSER_H
#define PKGLIB_DEBLISTPARSER_H
#include <apt-pkg/macros.h>
#include <apt-pkg/pkgcache.h>
#include <apt-pkg/pkgcachegen.h>
#include <apt-pkg/tagfile.h>
#ifdef APT_COMPILING_APT
#include <apt-pkg/tagfile-keys.h>
#endif
#include <string>
#include <string_view>
#include <vector>
class FileFd;
class APT_HIDDEN debListParser : public pkgCacheListParser
{
public:
// Parser Helper
struct WordList
{
std::string_view Str;
unsigned char Val;
};
protected:
std::vector<std::string> forceEssential;
std::vector<std::string> forceImportant;
std::string MD5Buffer;
std::string myArch;
std::string essential;
pkgTagFile Tags;
pkgTagSection Section;
map_filesize_t iOffset;
virtual bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver);
bool ParseDepends(pkgCache::VerIterator &Ver, pkgTagSection::Key Key,
unsigned int Type);
bool ParseProvides(pkgCache::VerIterator &Ver);
APT_HIDDEN static bool GrabWord(std::string_view Word,const WordList *List,unsigned char &Out);
APT_HIDDEN unsigned char ParseMultiArch(bool const showErrors);
public:
APT_PUBLIC static unsigned char GetPrio(std::string Str);
// These all operate against the current section
std::string Package() override;
bool ArchitectureAll() override;
std::string_view Architecture() override;
std::string_view Version() override;
bool NewVersion(pkgCache::VerIterator &Ver) override;
std::vector<std::string> AvailableDescriptionLanguages() override;
std::string_view Description_md5() override;
uint32_t VersionHash() override;
bool SameVersion(uint32_t Hash, pkgCache::VerIterator const &Ver) override;
bool UsePackage(pkgCache::PkgIterator &Pkg,
pkgCache::VerIterator &Ver) override;
map_filesize_t Offset() override { return iOffset; };
map_filesize_t Size() override { return Section.size(); };
bool Step() override;
APT_PUBLIC static const char *ParseDepends(const char *Start, const char *Stop,
std::string &Package, std::string &Ver, unsigned int &Op,
bool const &ParseArchFlags = false, bool const &StripMultiArch = true,
bool const &ParseRestrictionsList = false,
std::string const &Arch = "");
APT_PUBLIC static const char *ParseDepends(const char *Start, const char *Stop,
std::string_view &Package,
std::string_view &Ver, unsigned int &Op,
bool ParseArchFlags = false, bool StripMultiArch = true,
bool ParseRestrictionsList = false,
std::string Arch = "");
APT_PUBLIC static const char *ConvertRelation(const char *I,unsigned int &Op);
explicit debListParser(FileFd *File);
~debListParser() override;
#ifdef APT_COMPILING_APT
std::string_view SHA256() const
{
return Section.Find(pkgTagSection::Key::SHA256);
}
std::string_view ArchVariant() const
{
return Section.Find(pkgTagSection::Key::Architecture_Variant);
}
#endif
};
class APT_HIDDEN debDebFileParser : public debListParser
{
private:
std::string DebFile;
public:
debDebFileParser(FileFd *File, std::string const &DebFile);
bool UsePackage(pkgCache::PkgIterator &Pkg,
pkgCache::VerIterator &Ver) override;
};
class APT_HIDDEN debTranslationsParser : public debListParser
{
public:
// a translation can never be a real package
std::string_view Architecture() override { return {}; }
std::string_view Version() override { return {}; }
explicit debTranslationsParser(FileFd *File)
: debListParser(File) {};
};
class APT_HIDDEN debStatusListParser : public debListParser
{
public:
bool ParseStatus(pkgCache::PkgIterator &Pkg,pkgCache::VerIterator &Ver) override;
explicit debStatusListParser(FileFd *File)
: debListParser(File) {};
};
#endif
FileFd
Definition fileutl.h:43
pkgCacheListParser::SameVersion
virtual bool SameVersion(uint32_t Hash, pkgCache::VerIterator const &Ver)
Definition pkgcachegen.cc:1326
pkgCache::PkgIterator
Definition cacheiterators.h:147
pkgCache::VerIterator
Definition cacheiterators.h:218
pkgTagFile
Definition tagfile.h:186
pkgTagSection
Definition tagfile.h:46
pkgcache.h
pkgCache - Structure definitions for the cache file
debListParser::WordList
Definition deblistparser.h:34