X-Git-Url: https://git.saurik.com/apt.git/blobdiff_plain/7b464090c26153e808b90726e2faa58029f6bb88..49e1672884bf8d50713812bdd4eca26ab2076711:/apt-pkg/deb/debversion.cc?ds=sidebyside diff --git a/apt-pkg/deb/debversion.cc b/apt-pkg/deb/debversion.cc index e6132bea8..140561262 100644 --- a/apt-pkg/deb/debversion.cc +++ b/apt-pkg/deb/debversion.cc @@ -1,6 +1,6 @@ // -*- mode: cpp; mode: fold -*- // Description /*{{{*/ -// $Id: debversion.cc,v 1.7 2003/07/18 14:13:59 mdz Exp $ +// $Id: debversion.cc,v 1.8 2003/09/10 23:39:49 mdz Exp $ /* ###################################################################### Debian Version - Versioning system for Debian @@ -10,10 +10,7 @@ ##################################################################### */ /*}}}*/ // Include Files /*{{{*/ -#define APT_COMPATIBILITY 986 -#ifdef __GNUG__ -#pragma implementation "apt-pkg/debversion.h" -#endif +#include #include #include @@ -48,12 +45,18 @@ int debVersioningSystem::CmpFragment(const char *A,const char *AEnd, if (A >= AEnd && B >= BEnd) return 0; if (A >= AEnd) + { + if (*B == '~') return 1; return -1; + } if (B >= BEnd) + { + if (*A == '~') return -1; return 1; + } /* Iterate over the whole string - What this does is to spilt the whole string into groups of + What this does is to split the whole string into groups of numeric and non numeric portions. For instance: a67bhgs89 Has 4 portions 'a', '67', 'bhgs', '89'. A more normal: @@ -101,11 +104,17 @@ int debVersioningSystem::CmpFragment(const char *A,const char *AEnd, // lhs is shorter if (lhs == AEnd) + { + if (*rhs == '~') return 1; return -1; + } // rhs is shorter if (rhs == BEnd) + { + if (*lhs == '~') return -1; return 1; + } // Shouldnt happen return 1; @@ -118,16 +127,35 @@ int debVersioningSystem::CmpFragment(const char *A,const char *AEnd, int debVersioningSystem::DoCmpVersion(const char *A,const char *AEnd, const char *B,const char *BEnd) { - // Strip off the epoch and compare it - const char *lhs = A; - const char *rhs = B; - for (;lhs != AEnd && *lhs != ':'; lhs++); - for (;rhs != BEnd && *rhs != ':'; rhs++); - if (lhs == AEnd) + // Strip off the epoch and compare it + const char *lhs = (const char*) memchr(A, ':', AEnd - A); + const char *rhs = (const char*) memchr(B, ':', BEnd - B); + if (lhs == NULL) lhs = A; - if (rhs == BEnd) + if (rhs == NULL) rhs = B; + // Special case: a zero epoch is the same as no epoch, + // so remove it. + if (lhs != A) + { + for (; *A == '0'; ++A); + if (A == lhs) + { + ++A; + ++lhs; + } + } + if (rhs != B) + { + for (; *B == '0'; ++B); + if (B == rhs) + { + ++B; + ++rhs; + } + } + // Compare the epoch int Res = CmpFragment(A,lhs,B,rhs); if (Res != 0) @@ -139,15 +167,12 @@ int debVersioningSystem::DoCmpVersion(const char *A,const char *AEnd, if (rhs != B) rhs++; - // Find the last - - const char *dlhs = AEnd-1; - const char *drhs = BEnd-1; - for (;dlhs > lhs && *dlhs != '-'; dlhs--); - for (;drhs > rhs && *drhs != '-'; drhs--); - - if (dlhs == lhs) + // Find the last - + const char *dlhs = (const char*) memrchr(lhs, '-', AEnd - lhs); + const char *drhs = (const char*) memrchr(rhs, '-', BEnd - rhs); + if (dlhs == NULL) dlhs = AEnd; - if (drhs == rhs) + if (drhs == NULL) drhs = BEnd; // Compare the main version @@ -160,8 +185,22 @@ int debVersioningSystem::DoCmpVersion(const char *A,const char *AEnd, dlhs++; if (drhs != rhs) drhs++; - - return CmpFragment(dlhs,AEnd,drhs,BEnd); + + // no debian revision need to be treated like -0 + if (*(dlhs-1) == '-' && *(drhs-1) == '-') + return CmpFragment(dlhs,AEnd,drhs,BEnd); + else if (*(dlhs-1) == '-') + { + const char* null = "0"; + return CmpFragment(dlhs,AEnd,null, null+1); + } + else if (*(drhs-1) == '-') + { + const char* null = "0"; + return CmpFragment(null, null+1, drhs, BEnd); + } + else + return 0; } /*}}}*/ // debVS::CheckDep - Check a single dependency /*{{{*/ @@ -176,10 +215,15 @@ bool debVersioningSystem::CheckDep(const char *PkgVer, return true; if (PkgVer == 0 || PkgVer[0] == 0) return false; - + Op &= 0x0F; + + // fast track for (equal) strings [by location] which are by definition equal versions + if (PkgVer == DepVer) + return Op == pkgCache::Dep::Equals || Op == pkgCache::Dep::LessEq || Op == pkgCache::Dep::GreaterEq; + // Perform the actual comparision. - int Res = CmpVersion(PkgVer,DepVer); - switch (Op & 0x0F) + int const Res = CmpVersion(PkgVer, DepVer); + switch (Op) { case pkgCache::Dep::LessEq: if (Res <= 0) @@ -218,7 +262,7 @@ bool debVersioningSystem::CheckDep(const char *PkgVer, // debVS::UpstreamVersion - Return the upstream version string /*{{{*/ // --------------------------------------------------------------------- /* This strips all the debian specific information from the version number */ -string debVersioningSystem::UpstreamVersion(const char *Ver) +std::string debVersioningSystem::UpstreamVersion(const char *Ver) { // Strip off the bit before the first colon const char *I = Ver; @@ -233,6 +277,6 @@ string debVersioningSystem::UpstreamVersion(const char *Ver) if (*I == '-') Last = I - Ver; - return string(Ver,Last); + return std::string(Ver,Last); } /*}}}*/