[apt.git] / apt-pkg / cacheiterators.h

// -*- mode: cpp; mode: fold -*-
// Description								/*{{{*/
/* ######################################################################
   
   Cache Iterators - Iterators for navigating the cache structure
   
   The iterators all provides ++,==,!=,->,* and end for their type.
   The end function can be used to tell if the list has been fully
   traversed.
   
   Unlike STL iterators these contain helper functions to access the data
   that is being iterated over. This is because the data structures can't
   be formed in a manner that is intuitive to use and also mmapable.
   
   For each variable in the target structure that would need a translation
   to be accessed correctly a translating function of the same name is
   present in the iterator. If applicable the translating function will
   return an iterator.

   The DepIterator can iterate over two lists, a list of 'version depends'
   or a list of 'package reverse depends'. The type is determined by the
   structure passed to the constructor, which should be the structure
   that has the depends pointer as a member. The provide iterator has the
   same system.
   
   This header is not user includable, please use apt-pkg/pkgcache.h
   
   ##################################################################### */
									/*}}}*/
#ifndef PKGLIB_CACHEITERATORS_H
#define PKGLIB_CACHEITERATORS_H
// abstract Iterator template						/*{{{*/
/* This template provides the very basic iterator methods we
   need to have for doing some walk-over-the-cache magic */
template<typename Str, typename Itr> class pkgCache::Iterator {
	protected:
	Str *S;
	pkgCache *Owner;

	/** \brief Returns the Pointer for this struct in the owner
	 *  The implementation of this method should be pretty short
	 *  as it will only return the Pointer into the mmap stored
	 *  in the owner but the name of this pointer is different for
	 *  each stucture and we want to abstract here at least for the
	 *  basic methods from the actual structure.
	 *  \return Pointer to the first structure of this type
	 */
	virtual Str* OwnerPointer() const = 0;

	public:
	// Iteration
	virtual void operator ++(int) = 0;
	virtual void operator ++() = 0; // Should be {operator ++(0);};
	inline bool end() const {return Owner == 0 || S == OwnerPointer();};

	// Comparison
	inline bool operator ==(const Itr &B) const {return S == B.S;};
	inline bool operator !=(const Itr &B) const {return S != B.S;};

	// Accessors
	inline Str *operator ->() {return S;};
	inline Str const *operator ->() const {return S;};
	inline operator Str *() {return S == OwnerPointer() ? 0 : S;};
	inline operator Str const *() const {return S == OwnerPointer() ? 0 : S;};
	inline Str const &operator *() const {return *S;};
	inline pkgCache *Cache() {return Owner;};

	// Mixed stuff
	inline void operator =(const Itr &B) {S = B.S; Owner = B.Owner;};
	inline bool IsGood() const { return S && Owner && ! end();};
	inline unsigned long Index() const {return S - OwnerPointer();};

	// Constructors - look out for the variable assigning
	inline Iterator() : S(0), Owner(0) {};
	inline Iterator(pkgCache &Owner,Str *T = 0) : S(T), Owner(&Owner) {};
};
									/*}}}*/
// Group Iterator							/*{{{*/
/* Packages with the same name are collected in a Group so someone only
   interest in package names can iterate easily over the names, so the
   different architectures can be treated as of the "same" package
   (apt internally treat them as totally different packages) */
class pkgCache::GrpIterator: public Iterator<Group, GrpIterator> {
	long HashIndex;

	protected:
	inline Group* OwnerPointer() const {
		return Owner->GrpP;
	};

	public:
	// This constructor is the 'begin' constructor, never use it.
	inline GrpIterator(pkgCache &Owner) : Iterator<Group, GrpIterator>(Owner), HashIndex(-1) {
		S = OwnerPointer();
		operator ++(0);
	};

	virtual void operator ++(int);
	virtual void operator ++() {operator ++(0);};

	inline const char *Name() const {return S->Name == 0?0:Owner->StrP + S->Name;};
	inline PkgIterator PackageList() const;
	PkgIterator FindPkg(string Arch = "any");
	PkgIterator NextPkg(PkgIterator const &Pkg);

	// Constructors
	inline GrpIterator(pkgCache &Owner, Group *Trg) : Iterator<Group, GrpIterator>(Owner, Trg), HashIndex(0) {
		if (S == 0)
			S = OwnerPointer();
	};
	inline GrpIterator() : Iterator<Group, GrpIterator>(), HashIndex(0) {};

};
									/*}}}*/
// Package Iterator							/*{{{*/
class pkgCache::PkgIterator: public Iterator<Package, PkgIterator> {
	long HashIndex;

	protected:
	inline Package* OwnerPointer() const {
		return Owner->PkgP;
	};

	public:
	// This constructor is the 'begin' constructor, never use it.
	inline PkgIterator(pkgCache &Owner) : Iterator<Package, PkgIterator>(Owner), HashIndex(-1) {
		S = OwnerPointer();
		operator ++(0);
	};

	virtual void operator ++(int);
	virtual void operator ++() {operator ++(0);};

	enum OkState {NeedsNothing,NeedsUnpack,NeedsConfigure};

	// Accessors
	inline const char *Name() const {return S->Name == 0?0:Owner->StrP + S->Name;};
	inline const char *Section() const {return S->Section == 0?0:Owner->StrP + S->Section;};
	inline bool Purge() const {return S->CurrentState == pkgCache::State::Purge ||
		(S->CurrentVer == 0 && S->CurrentState == pkgCache::State::NotInstalled);};
	inline const char *Arch() const {return S->Arch == 0?0:Owner->StrP + S->Arch;};
	inline GrpIterator Group() const { return GrpIterator(*Owner, Owner->GrpP + S->Group);};

	inline VerIterator VersionList() const;
	inline VerIterator CurrentVer() const;
	inline DepIterator RevDependsList() const;
	inline PrvIterator ProvidesList() const;
	OkState State() const;
	const char *CandVersion() const;
	const char *CurVersion() const;

	//Nice printable representation
	friend std::ostream& operator <<(std::ostream& out, PkgIterator i);

	// Constructors
	inline PkgIterator(pkgCache &Owner,Package *Trg) : Iterator<Package, PkgIterator>(Owner, Trg), HashIndex(0) {
		if (S == 0)
			S = OwnerPointer();
	};
	inline PkgIterator() : Iterator<Package, PkgIterator>(), HashIndex(0) {};
};
									/*}}}*/
// Version Iterator							/*{{{*/
class pkgCache::VerIterator : public Iterator<Version, VerIterator> {
	protected:
	inline Version* OwnerPointer() const {
		return Owner->VerP;
	};

	public:
	// Iteration
	void operator ++(int) {if (S != Owner->VerP) S = Owner->VerP + S->NextVer;};
	inline void operator ++() {operator ++(0);};

	// Comparison
	int CompareVer(const VerIterator &B) const;

	// Accessors
	inline const char *VerStr() const {return S->VerStr == 0?0:Owner->StrP + S->VerStr;};
	inline const char *Section() const {return S->Section == 0?0:Owner->StrP + S->Section;};
	inline const char *Arch() const {return S->ParentPkg == 0?0:Owner->StrP + ParentPkg()->Arch;};
	inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);};

	inline DescIterator DescriptionList() const;
	DescIterator TranslatedDescription() const;
	inline DepIterator DependsList() const;
	inline PrvIterator ProvidesList() const;
	inline VerFileIterator FileList() const;
	bool Downloadable() const;
	inline const char *PriorityType() {return Owner->Priority(S->Priority);};
	string RelStr();

	bool Automatic() const;
	VerFileIterator NewestFile() const;

	inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Iterator<Version, VerIterator>(Owner, Trg) {
		if (S == 0)
			S = OwnerPointer();
	};
	inline VerIterator() : Iterator<Version, VerIterator>() {};
};
									/*}}}*/
// Description Iterator							/*{{{*/
class pkgCache::DescIterator : public Iterator<Description, DescIterator> {
	protected:
	inline Description* OwnerPointer() const {
		return Owner->DescP;
	};

	public:
	// Iteration
	void operator ++(int) {if (S != Owner->DescP) S = Owner->DescP + S->NextDesc;};
	inline void operator ++() {operator ++(0);};

	// Comparison
	int CompareDesc(const DescIterator &B) const;

	// Accessors
	inline const char *LanguageCode() const {return Owner->StrP + S->language_code;};
	inline const char *md5() const {return Owner->StrP + S->md5sum;};
	inline DescFileIterator FileList() const;

	inline DescIterator() : Iterator<Description, DescIterator>() {};
	inline DescIterator(pkgCache &Owner,Description *Trg = 0) : Iterator<Description, DescIterator>(Owner, Trg) {
		if (S == 0)
			S = Owner.DescP;
	};
};
									/*}}}*/
// Dependency iterator							/*{{{*/
class pkgCache::DepIterator : public Iterator<Dependency, DepIterator> {
	enum {DepVer, DepRev} Type;

	protected:
	inline Dependency* OwnerPointer() const {
		return Owner->DepP;
	};

	public:
	// Iteration
	void operator ++(int) {if (S != Owner->DepP) S = Owner->DepP +
		(Type == DepVer ? S->NextDepends : S->NextRevDepends);};
	inline void operator ++() {operator ++(0);};

	// Accessors
	inline const char *TargetVer() const {return S->Version == 0?0:Owner->StrP + S->Version;};
	inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + S->Package);};
	inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner,0);SmartTargetPkg(R);return R;};
	inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + S->ParentVer);};
	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->ParentVer].ParentPkg);};
	inline bool Reverse() {return Type == DepRev;};
	bool IsCritical();
	void GlobOr(DepIterator &Start,DepIterator &End);
	Version **AllTargets();
	bool SmartTargetPkg(PkgIterator &Result);
	inline const char *CompType() {return Owner->CompType(S->CompareOp);};
	inline const char *DepType() {return Owner->DepType(S->Type);};

	inline DepIterator(pkgCache &Owner, Dependency *Trg, Version* = 0) :
		Iterator<Dependency, DepIterator>(Owner, Trg), Type(DepVer) {
		if (S == 0)
			S = Owner.DepP;
	};
	inline DepIterator(pkgCache &Owner, Dependency *Trg, Package*) :
		Iterator<Dependency, DepIterator>(Owner, Trg), Type(DepRev) {
		if (S == 0)
			S = Owner.DepP;
	};
	inline DepIterator() : Iterator<Dependency, DepIterator>(), Type(DepVer) {};
};
									/*}}}*/
// Provides iterator							/*{{{*/
class pkgCache::PrvIterator : public Iterator<Provides, PrvIterator> {
	enum {PrvVer, PrvPkg} Type;

	protected:
	inline Provides* OwnerPointer() const {
		return Owner->ProvideP;
	};

	public:
	// Iteration
	void operator ++(int) {if (S != Owner->ProvideP) S = Owner->ProvideP +
		(Type == PrvVer?S->NextPkgProv:S->NextProvides);};
	inline void operator ++() {operator ++(0);};

	// Accessors
	inline const char *Name() const {return Owner->StrP + Owner->PkgP[S->ParentPkg].Name;};
	inline const char *ProvideVersion() const {return S->ProvideVersion == 0?0:Owner->StrP + S->ProvideVersion;};
	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);};
	inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + S->Version);};
	inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->Version].ParentPkg);};

	inline PrvIterator() : Iterator<Provides, PrvIterator>(), Type(PrvVer) {};

	inline PrvIterator(pkgCache &Owner, Provides *Trg, Version*) :
		Iterator<Provides, PrvIterator>(Owner, Trg), Type(PrvVer) {
		if (S == 0)
			S = Owner.ProvideP;
	};
	inline PrvIterator(pkgCache &Owner, Provides *Trg, Package*) :
		Iterator<Provides, PrvIterator>(Owner, Trg), Type(PrvPkg) {
		if (S == 0)
			S = Owner.ProvideP;
	};
};
									/*}}}*/
// Package file								/*{{{*/
class pkgCache::PkgFileIterator : public Iterator<PackageFile, PkgFileIterator> {
	protected:
	inline PackageFile* OwnerPointer() const {
		return Owner->PkgFileP;
	};

	public:
	// Iteration
	void operator ++(int) {if (S != Owner->PkgFileP) S = Owner->PkgFileP + S->NextFile;};
	inline void operator ++() {operator ++(0);};

	// Accessors
	inline const char *FileName() const {return S->FileName == 0?0:Owner->StrP + S->FileName;};
	inline const char *Archive() const {return S->Archive == 0?0:Owner->StrP + S->Archive;};
	inline const char *Component() const {return S->Component == 0?0:Owner->StrP + S->Component;};
	inline const char *Version() const {return S->Version == 0?0:Owner->StrP + S->Version;};
	inline const char *Origin() const {return S->Origin == 0?0:Owner->StrP + S->Origin;};
	inline const char *Codename() const {return S->Codename ==0?0:Owner->StrP + S->Codename;};
	inline const char *Label() const {return S->Label == 0?0:Owner->StrP + S->Label;};
	inline const char *Site() const {return S->Site == 0?0:Owner->StrP + S->Site;};
	inline const char *Architecture() const {return S->Architecture == 0?0:Owner->StrP + S->Architecture;};
	inline const char *IndexType() const {return S->IndexType == 0?0:Owner->StrP + S->IndexType;};

	bool IsOk();
	string RelStr();

	// Constructors
	inline PkgFileIterator() : Iterator<PackageFile, PkgFileIterator>() {};
	inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg = 0) : Iterator<PackageFile, PkgFileIterator>(Owner, Trg) {};
};
									/*}}}*/
// Version File								/*{{{*/
class pkgCache::VerFileIterator : public pkgCache::Iterator<VerFile, VerFileIterator> {
	protected:
	inline VerFile* OwnerPointer() const {
		return Owner->VerFileP;
	};

	public:
	// Iteration
	void operator ++(int) {if (S != Owner->VerFileP) S = Owner->VerFileP + S->NextFile;};
	inline void operator ++() {operator ++(0);};

	// Accessors
	inline PkgFileIterator File() const {return PkgFileIterator(*Owner,S->File + Owner->PkgFileP);};

	inline VerFileIterator() : Iterator<VerFile, VerFileIterator>() {};
	inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Iterator<VerFile, VerFileIterator>(Owner, Trg) {};
};
									/*}}}*/
// Description File							/*{{{*/
class pkgCache::DescFileIterator : public Iterator<DescFile, DescFileIterator> {
	protected:
	inline DescFile* OwnerPointer() const {
		return Owner->DescFileP;
	};

	public:
	// Iteration
	void operator ++(int) {if (S != Owner->DescFileP) S = Owner->DescFileP + S->NextFile;};
	inline void operator ++() {operator ++(0);};

	// Accessors
	inline PkgFileIterator File() const {return PkgFileIterator(*Owner,S->File + Owner->PkgFileP);};

	inline DescFileIterator() : Iterator<DescFile, DescFileIterator>() {};
	inline DescFileIterator(pkgCache &Owner,DescFile *Trg) : Iterator<DescFile, DescFileIterator>(Owner, Trg) {};
};
									/*}}}*/
// Inlined Begin functions cant be in the class because of order problems /*{{{*/
inline pkgCache::PkgIterator pkgCache::GrpIterator::PackageList() const
       {return PkgIterator(*Owner,Owner->PkgP + S->FirstPackage);};
inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
       {return VerIterator(*Owner,Owner->VerP + S->VersionList);};
inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
       {return VerIterator(*Owner,Owner->VerP + S->CurrentVer);};
inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
       {return DepIterator(*Owner,Owner->DepP + S->RevDepends,S);};
inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
       {return PrvIterator(*Owner,Owner->ProvideP + S->ProvidesList,S);};
inline pkgCache::DescIterator pkgCache::VerIterator::DescriptionList() const
       {return DescIterator(*Owner,Owner->DescP + S->DescriptionList);};
inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
       {return PrvIterator(*Owner,Owner->ProvideP + S->ProvidesList,S);};
inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
       {return DepIterator(*Owner,Owner->DepP + S->DependsList,S);};
inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
       {return VerFileIterator(*Owner,Owner->VerFileP + S->FileList);};
inline pkgCache::DescFileIterator pkgCache::DescIterator::FileList() const
       {return DescFileIterator(*Owner,Owner->DescFileP + S->FileList);};
									/*}}}*/
#endif
Commit	Line	Data
578bfd0a AL	1	// -- mode: cpp; mode: fold --
578bfd0a AL	2	// Description /{{{/
578bfd0a AL	3	/* ######################################################################
	4
	5	Cache Iterators - Iterators for navigating the cache structure
	6
	7	The iterators all provides ++,==,!=,->,* and end for their type.
	8	The end function can be used to tell if the list has been fully
	9	traversed.
	10
	11	Unlike STL iterators these contain helper functions to access the data
	12	that is being iterated over. This is because the data structures can't
	13	be formed in a manner that is intuitive to use and also mmapable.
	14
	15	For each variable in the target structure that would need a translation
	16	to be accessed correctly a translating function of the same name is
	17	present in the iterator. If applicable the translating function will
	18	return an iterator.
	19
	20	The DepIterator can iterate over two lists, a list of 'version depends'
	21	or a list of 'package reverse depends'. The type is determined by the
	22	structure passed to the constructor, which should be the structure
6c139d6e AL	23	that has the depends pointer as a member. The provide iterator has the
6c139d6e AL	24	same system.
578bfd0a	25
094a497d	26	This header is not user includable, please use apt-pkg/pkgcache.h
578bfd0a AL	27
	28	##################################################################### */
	29	/}}}/
578bfd0a AL	30	#ifndef PKGLIB_CACHEITERATORS_H
578bfd0a AL	31	#define PKGLIB_CACHEITERATORS_H
773e2c1f DK	32	// abstract Iterator template /{{{/
773e2c1f DK	33	/* This template provides the very basic iterator methods we
5bf15716	34	need to have for doing some walk-over-the-cache magic */
773e2c1f	35	template<typename Str, typename Itr> class pkgCache::Iterator {
773e2c1f DK	36	protected:
	37	Str *S;
	38	pkgCache *Owner;
	39
	40	/** \brief Returns the Pointer for this struct in the owner
	41	* The implementation of this method should be pretty short
	42	* as it will only return the Pointer into the mmap stored
	43	* in the owner but the name of this pointer is different for
	44	* each stucture and we want to abstract here at least for the
	45	* basic methods from the actual structure.
	46	* \return Pointer to the first structure of this type
	47	*/
	48	virtual Str* OwnerPointer() const = 0;
	49
	50	public:
	51	// Iteration
	52	virtual void operator ++(int) = 0;
	53	virtual void operator ++() = 0; // Should be {operator ++(0);};
	54	inline bool end() const {return Owner == 0 \|\| S == OwnerPointer();};
	55
	56	// Comparison
	57	inline bool operator ==(const Itr &B) const {return S == B.S;};
	58	inline bool operator !=(const Itr &B) const {return S != B.S;};
	59
	60	// Accessors
	61	inline Str *operator ->() {return S;};
	62	inline Str const *operator ->() const {return S;};
	63	inline operator Str *() {return S == OwnerPointer() ? 0 : S;};
	64	inline operator Str const *() const {return S == OwnerPointer() ? 0 : S;};
	65	inline Str const &operator () const {return S;};
	66	inline pkgCache *Cache() {return Owner;};
	67
	68	// Mixed stuff
	69	inline void operator =(const Itr &B) {S = B.S; Owner = B.Owner;};
	70	inline bool IsGood() const { return S && Owner && ! end();};
	71	inline unsigned long Index() const {return S - OwnerPointer();};
	72
	73	// Constructors - look out for the variable assigning
	74	inline Iterator() : S(0), Owner(0) {};
	75	inline Iterator(pkgCache &Owner,Str *T = 0) : S(T), Owner(&Owner) {};
5bf15716 DK	76	};
	77	/}}}/
	78	// Group Iterator /{{{/
	79	/* Packages with the same name are collected in a Group so someone only
	80	interest in package names can iterate easily over the names, so the
	81	different architectures can be treated as of the "same" package
	82	(apt internally treat them as totally different packages) */
	83	class pkgCache::GrpIterator: public Iterator<Group, GrpIterator> {
25396fb0 DK	84	long HashIndex;
25396fb0 DK	85
5bf15716 DK	86	protected:
	87	inline Group* OwnerPointer() const {
	88	return Owner->GrpP;
	89	};
	90
	91	public:
25396fb0 DK	92	// This constructor is the 'begin' constructor, never use it.
	93	inline GrpIterator(pkgCache &Owner) : Iterator<Group, GrpIterator>(Owner), HashIndex(-1) {
	94	S = OwnerPointer();
	95	operator ++(0);
	96	};
	97
	98	virtual void operator ++(int);
5bf15716 DK	99	virtual void operator ++() {operator ++(0);};
	100
	101	inline const char *Name() const {return S->Name == 0?0:Owner->StrP + S->Name;};
	102	inline PkgIterator PackageList() const;
	103	PkgIterator FindPkg(string Arch = "any");
	104	PkgIterator NextPkg(PkgIterator const &Pkg);
	105
	106	// Constructors
25396fb0	107	inline GrpIterator(pkgCache &Owner, Group *Trg) : Iterator<Group, GrpIterator>(Owner, Trg), HashIndex(0) {
5bf15716 DK	108	if (S == 0)
	109	S = OwnerPointer();
	110	};
25396fb0	111	inline GrpIterator() : Iterator<Group, GrpIterator>(), HashIndex(0) {};
5bf15716	112
773e2c1f DK	113	};
773e2c1f DK	114	/}}}/
92fcbfc1	115	// Package Iterator /{{{/
773e2c1f DK	116	class pkgCache::PkgIterator: public Iterator<Package, PkgIterator> {
	117	long HashIndex;
	118
	119	protected:
	120	inline Package* OwnerPointer() const {
	121	return Owner->PkgP;
	122	};
	123
	124	public:
	125	// This constructor is the 'begin' constructor, never use it.
	126	inline PkgIterator(pkgCache &Owner) : Iterator<Package, PkgIterator>(Owner), HashIndex(-1) {
	127	S = OwnerPointer();
	128	operator ++(0);
	129	};
	130
	131	virtual void operator ++(int);
	132	virtual void operator ++() {operator ++(0);};
	133
	134	enum OkState {NeedsNothing,NeedsUnpack,NeedsConfigure};
	135
	136	// Accessors
	137	inline const char *Name() const {return S->Name == 0?0:Owner->StrP + S->Name;};
	138	inline const char *Section() const {return S->Section == 0?0:Owner->StrP + S->Section;};
	139	inline bool Purge() const {return S->CurrentState == pkgCache::State::Purge \|\|
	140	(S->CurrentVer == 0 && S->CurrentState == pkgCache::State::NotInstalled);};
5bf15716 DK	141	inline const char *Arch() const {return S->Arch == 0?0:Owner->StrP + S->Arch;};
5bf15716 DK	142	inline GrpIterator Group() const { return GrpIterator(*Owner, Owner->GrpP + S->Group);};
773e2c1f DK	143
	144	inline VerIterator VersionList() const;
	145	inline VerIterator CurrentVer() const;
	146	inline DepIterator RevDependsList() const;
	147	inline PrvIterator ProvidesList() const;
	148	OkState State() const;
	149	const char *CandVersion() const;
	150	const char *CurVersion() const;
	151
	152	//Nice printable representation
	153	friend std::ostream& operator <<(std::ostream& out, PkgIterator i);
	154
	155	// Constructors
	156	inline PkgIterator(pkgCache &Owner,Package *Trg) : Iterator<Package, PkgIterator>(Owner, Trg), HashIndex(0) {
	157	if (S == 0)
	158	S = OwnerPointer();
	159	};
	160	inline PkgIterator() : Iterator<Package, PkgIterator>(), HashIndex(0) {};
578bfd0a	161	};
92fcbfc1 DK	162	/}}}/
92fcbfc1 DK	163	// Version Iterator /{{{/
773e2c1f DK	164	class pkgCache::VerIterator : public Iterator<Version, VerIterator> {
	165	protected:
	166	inline Version* OwnerPointer() const {
	167	return Owner->VerP;
	168	};
	169
	170	public:
	171	// Iteration
	172	void operator ++(int) {if (S != Owner->VerP) S = Owner->VerP + S->NextVer;};
	173	inline void operator ++() {operator ++(0);};
	174
	175	// Comparison
	176	int CompareVer(const VerIterator &B) const;
	177
	178	// Accessors
	179	inline const char *VerStr() const {return S->VerStr == 0?0:Owner->StrP + S->VerStr;};
	180	inline const char *Section() const {return S->Section == 0?0:Owner->StrP + S->Section;};
857e9c13	181	inline const char *Arch() const {return S->ParentPkg == 0?0:Owner->StrP + ParentPkg()->Arch;};
773e2c1f DK	182	inline PkgIterator ParentPkg() const {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);};
	183
	184	inline DescIterator DescriptionList() const;
	185	DescIterator TranslatedDescription() const;
	186	inline DepIterator DependsList() const;
	187	inline PrvIterator ProvidesList() const;
	188	inline VerFileIterator FileList() const;
	189	bool Downloadable() const;
	190	inline const char *PriorityType() {return Owner->Priority(S->Priority);};
	191	string RelStr();
	192
	193	bool Automatic() const;
	194	VerFileIterator NewestFile() const;
	195
	196	inline VerIterator(pkgCache &Owner,Version *Trg = 0) : Iterator<Version, VerIterator>(Owner, Trg) {
	197	if (S == 0)
	198	S = OwnerPointer();
	199	};
	200	inline VerIterator() : Iterator<Version, VerIterator>() {};
578bfd0a	201	};
92fcbfc1 DK	202	/}}}/
92fcbfc1 DK	203	// Description Iterator /{{{/
773e2c1f DK	204	class pkgCache::DescIterator : public Iterator<Description, DescIterator> {
	205	protected:
	206	inline Description* OwnerPointer() const {
	207	return Owner->DescP;
	208	};
	209
	210	public:
	211	// Iteration
	212	void operator ++(int) {if (S != Owner->DescP) S = Owner->DescP + S->NextDesc;};
	213	inline void operator ++() {operator ++(0);};
	214
	215	// Comparison
	216	int CompareDesc(const DescIterator &B) const;
	217
	218	// Accessors
	219	inline const char *LanguageCode() const {return Owner->StrP + S->language_code;};
	220	inline const char *md5() const {return Owner->StrP + S->md5sum;};
	221	inline DescFileIterator FileList() const;
	222
	223	inline DescIterator() : Iterator<Description, DescIterator>() {};
	224	inline DescIterator(pkgCache &Owner,Description *Trg = 0) : Iterator<Description, DescIterator>(Owner, Trg) {
	225	if (S == 0)
	226	S = Owner.DescP;
	227	};
a52f938b	228	};
92fcbfc1 DK	229	/}}}/
92fcbfc1 DK	230	// Dependency iterator /{{{/
773e2c1f DK	231	class pkgCache::DepIterator : public Iterator<Dependency, DepIterator> {
	232	enum {DepVer, DepRev} Type;
	233
	234	protected:
	235	inline Dependency* OwnerPointer() const {
	236	return Owner->DepP;
	237	};
	238
	239	public:
	240	// Iteration
	241	void operator ++(int) {if (S != Owner->DepP) S = Owner->DepP +
	242	(Type == DepVer ? S->NextDepends : S->NextRevDepends);};
	243	inline void operator ++() {operator ++(0);};
	244
	245	// Accessors
	246	inline const char *TargetVer() const {return S->Version == 0?0:Owner->StrP + S->Version;};
	247	inline PkgIterator TargetPkg() {return PkgIterator(*Owner,Owner->PkgP + S->Package);};
	248	inline PkgIterator SmartTargetPkg() {PkgIterator R(*Owner,0);SmartTargetPkg(R);return R;};
	249	inline VerIterator ParentVer() {return VerIterator(*Owner,Owner->VerP + S->ParentVer);};
	250	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->ParentVer].ParentPkg);};
	251	inline bool Reverse() {return Type == DepRev;};
	252	bool IsCritical();
	253	void GlobOr(DepIterator &Start,DepIterator &End);
	254	Version **AllTargets();
	255	bool SmartTargetPkg(PkgIterator &Result);
	256	inline const char *CompType() {return Owner->CompType(S->CompareOp);};
	257	inline const char *DepType() {return Owner->DepType(S->Type);};
	258
	259	inline DepIterator(pkgCache &Owner, Dependency Trg, Version = 0) :
	260	Iterator<Dependency, DepIterator>(Owner, Trg), Type(DepVer) {
	261	if (S == 0)
	262	S = Owner.DepP;
	263	};
	264	inline DepIterator(pkgCache &Owner, Dependency Trg, Package) :
	265	Iterator<Dependency, DepIterator>(Owner, Trg), Type(DepRev) {
	266	if (S == 0)
	267	S = Owner.DepP;
	268	};
	269	inline DepIterator() : Iterator<Dependency, DepIterator>(), Type(DepVer) {};
578bfd0a	270	};
92fcbfc1 DK	271	/}}}/
92fcbfc1 DK	272	// Provides iterator /{{{/
773e2c1f DK	273	class pkgCache::PrvIterator : public Iterator<Provides, PrvIterator> {
	274	enum {PrvVer, PrvPkg} Type;
	275
	276	protected:
	277	inline Provides* OwnerPointer() const {
	278	return Owner->ProvideP;
	279	};
	280
	281	public:
	282	// Iteration
	283	void operator ++(int) {if (S != Owner->ProvideP) S = Owner->ProvideP +
	284	(Type == PrvVer?S->NextPkgProv:S->NextProvides);};
	285	inline void operator ++() {operator ++(0);};
	286
	287	// Accessors
	288	inline const char *Name() const {return Owner->StrP + Owner->PkgP[S->ParentPkg].Name;};
	289	inline const char *ProvideVersion() const {return S->ProvideVersion == 0?0:Owner->StrP + S->ProvideVersion;};
	290	inline PkgIterator ParentPkg() {return PkgIterator(*Owner,Owner->PkgP + S->ParentPkg);};
	291	inline VerIterator OwnerVer() {return VerIterator(*Owner,Owner->VerP + S->Version);};
	292	inline PkgIterator OwnerPkg() {return PkgIterator(*Owner,Owner->PkgP + Owner->VerP[S->Version].ParentPkg);};
	293
	294	inline PrvIterator() : Iterator<Provides, PrvIterator>(), Type(PrvVer) {};
	295
	296	inline PrvIterator(pkgCache &Owner, Provides Trg, Version) :
	297	Iterator<Provides, PrvIterator>(Owner, Trg), Type(PrvVer) {
	298	if (S == 0)
	299	S = Owner.ProvideP;
	300	};
	301	inline PrvIterator(pkgCache &Owner, Provides Trg, Package) :
	302	Iterator<Provides, PrvIterator>(Owner, Trg), Type(PrvPkg) {
	303	if (S == 0)
	304	S = Owner.ProvideP;
	305	};
578bfd0a	306	};
92fcbfc1 DK	307	/}}}/
92fcbfc1 DK	308	// Package file /{{{/
773e2c1f DK	309	class pkgCache::PkgFileIterator : public Iterator<PackageFile, PkgFileIterator> {
	310	protected:
	311	inline PackageFile* OwnerPointer() const {
	312	return Owner->PkgFileP;
	313	};
	314
	315	public:
	316	// Iteration
	317	void operator ++(int) {if (S != Owner->PkgFileP) S = Owner->PkgFileP + S->NextFile;};
	318	inline void operator ++() {operator ++(0);};
	319
	320	// Accessors
	321	inline const char *FileName() const {return S->FileName == 0?0:Owner->StrP + S->FileName;};
	322	inline const char *Archive() const {return S->Archive == 0?0:Owner->StrP + S->Archive;};
	323	inline const char *Component() const {return S->Component == 0?0:Owner->StrP + S->Component;};
	324	inline const char *Version() const {return S->Version == 0?0:Owner->StrP + S->Version;};
	325	inline const char *Origin() const {return S->Origin == 0?0:Owner->StrP + S->Origin;};
	326	inline const char *Codename() const {return S->Codename ==0?0:Owner->StrP + S->Codename;};
	327	inline const char *Label() const {return S->Label == 0?0:Owner->StrP + S->Label;};
	328	inline const char *Site() const {return S->Site == 0?0:Owner->StrP + S->Site;};
	329	inline const char *Architecture() const {return S->Architecture == 0?0:Owner->StrP + S->Architecture;};
	330	inline const char *IndexType() const {return S->IndexType == 0?0:Owner->StrP + S->IndexType;};
	331
	332	bool IsOk();
	333	string RelStr();
	334
	335	// Constructors
	336	inline PkgFileIterator() : Iterator<PackageFile, PkgFileIterator>() {};
	337	inline PkgFileIterator(pkgCache &Owner,PackageFile *Trg = 0) : Iterator<PackageFile, PkgFileIterator>(Owner, Trg) {};
578bfd0a	338	};
92fcbfc1 DK	339	/}}}/
92fcbfc1 DK	340	// Version File /{{{/
773e2c1f DK	341	class pkgCache::VerFileIterator : public pkgCache::Iterator<VerFile, VerFileIterator> {
	342	protected:
	343	inline VerFile* OwnerPointer() const {
	344	return Owner->VerFileP;
	345	};
	346
	347	public:
	348	// Iteration
	349	void operator ++(int) {if (S != Owner->VerFileP) S = Owner->VerFileP + S->NextFile;};
	350	inline void operator ++() {operator ++(0);};
	351
	352	// Accessors
	353	inline PkgFileIterator File() const {return PkgFileIterator(*Owner,S->File + Owner->PkgFileP);};
	354
	355	inline VerFileIterator() : Iterator<VerFile, VerFileIterator>() {};
	356	inline VerFileIterator(pkgCache &Owner,VerFile *Trg) : Iterator<VerFile, VerFileIterator>(Owner, Trg) {};
dcb79bae	357	};
92fcbfc1 DK	358	/}}}/
92fcbfc1 DK	359	// Description File /{{{/
773e2c1f DK	360	class pkgCache::DescFileIterator : public Iterator<DescFile, DescFileIterator> {
	361	protected:
	362	inline DescFile* OwnerPointer() const {
	363	return Owner->DescFileP;
	364	};
	365
	366	public:
	367	// Iteration
	368	void operator ++(int) {if (S != Owner->DescFileP) S = Owner->DescFileP + S->NextFile;};
	369	inline void operator ++() {operator ++(0);};
	370
	371	// Accessors
	372	inline PkgFileIterator File() const {return PkgFileIterator(*Owner,S->File + Owner->PkgFileP);};
	373
	374	inline DescFileIterator() : Iterator<DescFile, DescFileIterator>() {};
	375	inline DescFileIterator(pkgCache &Owner,DescFile *Trg) : Iterator<DescFile, DescFileIterator>(Owner, Trg) {};
a52f938b	376	};
92fcbfc1 DK	377	/}}}/
92fcbfc1 DK	378	// Inlined Begin functions cant be in the class because of order problems /{{{/
5bf15716 DK	379	inline pkgCache::PkgIterator pkgCache::GrpIterator::PackageList() const
5bf15716 DK	380	{return PkgIterator(*Owner,Owner->PkgP + S->FirstPackage);};
578bfd0a	381	inline pkgCache::VerIterator pkgCache::PkgIterator::VersionList() const
773e2c1f	382	{return VerIterator(*Owner,Owner->VerP + S->VersionList);};
578bfd0a	383	inline pkgCache::VerIterator pkgCache::PkgIterator::CurrentVer() const
773e2c1f	384	{return VerIterator(*Owner,Owner->VerP + S->CurrentVer);};
578bfd0a	385	inline pkgCache::DepIterator pkgCache::PkgIterator::RevDependsList() const
773e2c1f	386	{return DepIterator(*Owner,Owner->DepP + S->RevDepends,S);};
578bfd0a	387	inline pkgCache::PrvIterator pkgCache::PkgIterator::ProvidesList() const
773e2c1f	388	{return PrvIterator(*Owner,Owner->ProvideP + S->ProvidesList,S);};
a52f938b	389	inline pkgCache::DescIterator pkgCache::VerIterator::DescriptionList() const
773e2c1f	390	{return DescIterator(*Owner,Owner->DescP + S->DescriptionList);};
578bfd0a	391	inline pkgCache::PrvIterator pkgCache::VerIterator::ProvidesList() const
773e2c1f	392	{return PrvIterator(*Owner,Owner->ProvideP + S->ProvidesList,S);};
578bfd0a	393	inline pkgCache::DepIterator pkgCache::VerIterator::DependsList() const
773e2c1f	394	{return DepIterator(*Owner,Owner->DepP + S->DependsList,S);};
dcb79bae	395	inline pkgCache::VerFileIterator pkgCache::VerIterator::FileList() const
773e2c1f	396	{return VerFileIterator(*Owner,Owner->VerFileP + S->FileList);};
a52f938b	397	inline pkgCache::DescFileIterator pkgCache::DescIterator::FileList() const
773e2c1f	398	{return DescFileIterator(*Owner,Owner->DescFileP + S->FileList);};
92fcbfc1	399	/}}}/
578bfd0a	400	#endif