X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/29f7b36cd63f16ceab825531b5c131eac4b99f9b..2ac6ce927cda2847baf8e71a74e595e6b82c6d98:/apt-pkg/tagfile.h diff --git a/apt-pkg/tagfile.h b/apt-pkg/tagfile.h index 84998629d..8c948754d 100644 --- a/apt-pkg/tagfile.h +++ b/apt-pkg/tagfile.h @@ -1,12 +1,12 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: tagfile.h,v 1.14 1999/07/03 06:45:40 jgg Exp $ +// $Id: tagfile.h,v 1.20 2003/05/19 17:13:57 doogie Exp $ /* ###################################################################### Fast scanner for RFC-822 type header information This parser handles Debian package files (and others). Their form is - RFC-822 type header fields in groups seperated by a blank line. + RFC-822 type header fields in groups separated by a blank line. The parser reads the file and provides methods to step linearly over it or to jump to a pre-recorded start point and read that record. @@ -17,7 +17,6 @@ ##################################################################### */ /*}}}*/ -// Header section: pkglib #ifndef PKGLIB_TAGFILE_H #define PKGLIB_TAGFILE_H @@ -26,7 +25,8 @@ #endif #include - +#include + class pkgTagSection { const char *Section; @@ -34,7 +34,7 @@ class pkgTagSection // We have a limit of 256 tags per section. unsigned short Indexes[256]; - unsigned short AlphaIndexes[26 + 26*26]; + unsigned short AlphaIndexes[0x100]; unsigned int TagCount; @@ -43,19 +43,21 @@ class pkgTagSection inline bool operator ==(const pkgTagSection &rhs) {return Section == rhs.Section;}; inline bool operator !=(const pkgTagSection &rhs) {return Section != rhs.Section;}; - bool Find(const char *Tag,const char *&Start, const char *&End); - string FindS(const char *Tag); - signed int FindI(const char *Tag,signed long Default = 0); - bool pkgTagSection::FindFlag(const char *Tag,unsigned long &Flags, - unsigned long Flag); + bool Find(const char *Tag,const char *&Start, const char *&End) const; + bool Find(const char *Tag,unsigned &Pos) const; + string FindS(const char *Tag) const; + signed int FindI(const char *Tag,signed long Default = 0) const ; + bool FindFlag(const char *Tag,unsigned long &Flags, + unsigned long Flag) const; bool Scan(const char *Start,unsigned long MaxLength); - inline unsigned long size() {return Stop - Section;}; - - inline unsigned int Count() {return TagCount;}; - inline void Get(const char *&Start,const char *&Stop,unsigned int I) + inline unsigned long size() const {return Stop - Section;}; + void Trim(); + + inline unsigned int Count() const {return TagCount;}; + inline void Get(const char *&Start,const char *&Stop,unsigned int I) const {Start = Section + Indexes[I]; Stop = Section + Indexes[I+1];} - inline void GetSection(const char *&Start,const char *&Stop) + inline void GetSection(const char *&Start,const char *&Stop) const { Start = Section; Stop = this->Stop; @@ -70,7 +72,7 @@ class pkgTagFile char *Buffer; char *Start; char *End; - unsigned long Left; + bool Done; unsigned long iOffset; unsigned long Size; @@ -82,8 +84,24 @@ class pkgTagFile inline unsigned long Offset() {return iOffset;}; bool Jump(pkgTagSection &Tag,unsigned long Offset); - pkgTagFile(FileFd &F,unsigned long Size = 32*1024); + pkgTagFile(FileFd *F,unsigned long Size = 32*1024); ~pkgTagFile(); }; +/* This is the list of things to rewrite. The rewriter + goes through and changes or adds each of these headers + to suit. A zero forces the header to be erased, an empty string + causes the old value to be used. (rewrite rule ignored) */ +struct TFRewriteData +{ + const char *Tag; + const char *Rewrite; + const char *NewTag; +}; +extern const char **TFRewritePackageOrder; +extern const char **TFRewriteSourceOrder; + +bool TFRewrite(FILE *Output,pkgTagSection const &Tags,const char *Order[], + TFRewriteData *Rewrite); + #endif