Release 1.4~beta1

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

diff --git a/apt-pkg/tagfile.h b/apt-pkg/tagfile.h
index 2f26846efd003b774b78a2870f883bcbd9aa15a0..3b89d0e45228da61aa33c4892f7db96f9582d629 100644 (file)
--- a/apt-pkg/tagfile.h
+++ b/apt-pkg/tagfile.h
@@ -27,6 +27,9 @@
 #include <string>
 #include <vector>
 #include <list>
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+#include <apt-pkg/string_view.h>
+#endif
 
 #ifndef APT_8_CLEANER_HEADERS
 #include <apt-pkg/fileutl.h>
@@ -46,10 +49,22 @@ class pkgTagFilePrivate;
 class pkgTagSection
 {
    const char *Section;
-   unsigned int AlphaIndexes[0x100];
+   unsigned int AlphaIndexes[128];
+   unsigned int BetaIndexes[128];
 
    pkgTagSectionPrivate * const d;
 
+   APT_HIDDEN bool FindInternal(unsigned int Pos,const char *&Start, const char *&End) const;
+#if defined(APT_PKG_EXPOSE_STRING_VIEW)
+   APT_HIDDEN APT::StringView FindInternal(unsigned int Pos) const;
+   APT_HIDDEN APT::StringView FindRawInternal(unsigned int Pos) const;
+#endif
+   APT_HIDDEN signed int FindIInternal(unsigned int Pos,signed long Default = 0) const;
+   APT_HIDDEN bool FindBInternal(unsigned int Pos, bool Default = false) const;
+   APT_HIDDEN unsigned long long FindULLInternal(unsigned int Pos, unsigned long long const &Default = 0) const;
+   APT_HIDDEN bool FindFlagInternal(unsigned int Pos,uint8_t &Flags, uint8_t const Flag) const;
+   APT_HIDDEN bool FindFlagInternal(unsigned int Pos,unsigned long &Flags, unsigned long Flag) const;
+
    protected:
    const char *Stop;
 
@@ -58,19 +73,52 @@ class pkgTagSection
    inline bool operator ==(const pkgTagSection &rhs) {return Section == rhs.Section;};
    inline bool operator !=(const pkgTagSection &rhs) {return Section != rhs.Section;};
 
+#if !defined(APT_PKG_EXPOSE_STRING_VIEW) || defined(APT_COMPILING_TAGFILE_COMPAT_CC)
    bool Find(const char *Tag,const char *&Start, const char *&End) const;
    bool Find(const char *Tag,unsigned int &Pos) const;
-   std::string FindS(const char *Tag) const;
-   std::string FindRawS(const char *Tag) const;
    signed int FindI(const char *Tag,signed long Default = 0) const;
    bool FindB(const char *Tag, bool const &Default = false) const;
    unsigned long long FindULL(const char *Tag, unsigned long long const &Default = 0) const;
    bool FindFlag(const char * const Tag,uint8_t &Flags,
                 uint8_t const Flag) const;
-   bool static FindFlag(uint8_t &Flags, uint8_t const Flag,
-                               const char* const Start, const char* const Stop);
    bool FindFlag(const char *Tag,unsigned long &Flags,
                 unsigned long Flag) const;
+   bool Exists(const char* const Tag) const;
+#endif
+   // TODO: Remove internally
+   std::string FindS(const char *Tag) const;
+   std::string FindRawS(const char *Tag) const;
+
+   // Functions for lookup with a perfect hash function
+   enum class Key;
+   APT_HIDDEN bool Find(Key key,const char *&Start, const char *&End) const;
+   APT_HIDDEN bool Find(Key key,unsigned int &Pos) const;
+   APT_HIDDEN signed int FindI(Key key,signed long Default = 0) const;
+   APT_HIDDEN bool FindB(Key key, bool Default = false) const;
+   APT_HIDDEN unsigned long long FindULL(Key key, unsigned long long const &Default = 0) const;
+   APT_HIDDEN bool FindFlag(Key key,uint8_t &Flags, uint8_t const Flag) const;
+   APT_HIDDEN bool FindFlag(Key key,unsigned long &Flags, unsigned long Flag) const;
+   APT_HIDDEN bool Exists(Key key) const;
+#ifdef APT_PKG_EXPOSE_STRING_VIEW
+   APT_HIDDEN APT::StringView Find(Key key) const;
+   APT_HIDDEN APT::StringView FindRaw(Key key) const;
+   APT_HIDDEN bool Find(APT::StringView Tag,const char *&Start, const char *&End) const;
+   APT_HIDDEN bool Find(APT::StringView Tag,unsigned int &Pos) const;
+   APT_HIDDEN APT::StringView Find(APT::StringView Tag) const;
+   APT_HIDDEN APT::StringView FindRaw(APT::StringView Tag) const;
+   APT_HIDDEN signed int FindI(APT::StringView Tag,signed long Default = 0) const;
+   APT_HIDDEN bool FindB(APT::StringView, bool Default = false) const;
+   APT_HIDDEN unsigned long long FindULL(APT::StringView Tag, unsigned long long const &Default = 0) const;
+
+   APT_HIDDEN bool FindFlag(APT::StringView Tag,uint8_t &Flags,
+                uint8_t const Flag) const;
+   APT_HIDDEN bool FindFlag(APT::StringView Tag,unsigned long &Flags,
+                unsigned long Flag) const;
+   APT_HIDDEN bool Exists(APT::StringView Tag) const;
+#endif
+
+   bool static FindFlag(uint8_t &Flags, uint8_t const Flag,
+                               const char* const Start, const char* const Stop);
    bool static FindFlag(unsigned long &Flags, unsigned long Flag,
                                const char* Start, const char* Stop);
 
@@ -102,7 +150,6 @@ class pkgTagSection
     * times, but only the last occurrence is available via Find methods.
     */
    unsigned int Count() const;
-   bool Exists(const char* const Tag) const;
 
    void Get(const char *&Start,const char *&Stop,unsigned int I) const;
 
@@ -140,9 +187,7 @@ class pkgTagSection
 };
 
 
-/* For user generated file the parser should be a bit more relaxed in exchange
-   for being a bit slower to allow comments and new lines all over the place */
-class pkgUserTagSection : public pkgTagSection
+class APT_DEPRECATED_MSG("Use pkgTagFile with the SUPPORT_COMMENTS flag instead") pkgUserTagSection : public pkgTagSection
 {
    virtual void TrimRecord(bool BeforeRecord, const char* &End) APT_OVERRIDE;
 };