apt-pkg/cachefilter.cc

   1 // -*- mode: cpp; mode: fold -*-
   2 // Description                                                          /*{{{*/
   3 /** \file cachefilter.h
   4     Collection of functor classes */
   5                                                                         /*}}}*/
   6 // Include Files                                                        /*{{{*/
   7 #include <config.h>
   8
   9 #include <apt-pkg/cachefilter.h>
  10 #include <apt-pkg/error.h>
  11 #include <apt-pkg/pkgcache.h>
  12 #include <apt-pkg/strutl.h>
  13
  14 #include <string>
  15
  16 #include <regex.h>
  17 #include <fnmatch.h>
  18
  19 #include <apti18n.h>
  20                                                                         /*}}}*/
  21 namespace APT {
  22 namespace CacheFilter {
  23 PackageNameMatchesRegEx::PackageNameMatchesRegEx(std::string const &Pattern) : d(NULL) {/*{{{*/
  24         pattern = new regex_t;
  25         int const Res = regcomp(pattern, Pattern.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB);
  26         if (Res == 0)
  27                 return;
  28
  29         delete pattern;
  30         pattern = NULL;
  31         char Error[300];
  32         regerror(Res, pattern, Error, sizeof(Error));
  33         _error->Error(_("Regex compilation error - %s"), Error);
  34 }
  35                                                                         /*}}}*/
  36 bool PackageNameMatchesRegEx::operator() (pkgCache::PkgIterator const &Pkg) {/*{{{*/
  37         if (unlikely(pattern == NULL))
  38                 return false;
  39         else
  40                 return regexec(pattern, Pkg.Name(), 0, 0, 0) == 0;
  41 }
  42                                                                         /*}}}*/
  43 bool PackageNameMatchesRegEx::operator() (pkgCache::GrpIterator const &Grp) {/*{{{*/
  44         if (unlikely(pattern == NULL))
  45                 return false;
  46         else
  47                 return regexec(pattern, Grp.Name(), 0, 0, 0) == 0;
  48 }
  49                                                                         /*}}}*/
  50 PackageNameMatchesRegEx::~PackageNameMatchesRegEx() {                   /*{{{*/
  51         if (pattern == NULL)
  52                 return;
  53         regfree(pattern);
  54         delete pattern;
  55 }
  56                                                                         /*}}}*/
  57
  58 // CompleteArch to <kernel>-<cpu> tuple                                 /*{{{*/
  59 //----------------------------------------------------------------------
  60 /* The complete architecture, consisting of <kernel>-<cpu>. */
  61 static std::string CompleteArch(std::string const &arch) {
  62         if (arch.find('-') != std::string::npos) {
  63                 // ensure that only -any- is replaced and not something like company-
  64                 std::string complete = std::string("-").append(arch).append("-");
  65                 complete = SubstVar(complete, "-any-", "-*-");
  66                 complete = complete.substr(1, complete.size()-2);
  67                 return complete;
  68         }
  69         else if (arch == "any")                 return "*-*";
  70         else                                    return "linux-" + arch;
  71 }
  72                                                                         /*}}}*/
  73 PackageArchitectureMatchesSpecification::PackageArchitectureMatchesSpecification(std::string const &pattern, bool const isPattern) :/*{{{*/
  74                                         literal(pattern), complete(CompleteArch(pattern)), isPattern(isPattern), d(NULL) {
  75 }
  76                                                                         /*}}}*/
  77 bool PackageArchitectureMatchesSpecification::operator() (char const * const &arch) {/*{{{*/
  78         if (strcmp(literal.c_str(), arch) == 0 ||
  79             strcmp(complete.c_str(), arch) == 0)
  80                 return true;
  81         std::string const pkgarch = CompleteArch(arch);
  82         if (isPattern == true)
  83                 return fnmatch(complete.c_str(), pkgarch.c_str(), 0) == 0;
  84         return fnmatch(pkgarch.c_str(), complete.c_str(), 0) == 0;
  85 }
  86                                                                         /*}}}*/
  87 bool PackageArchitectureMatchesSpecification::operator() (pkgCache::PkgIterator const &Pkg) {/*{{{*/
  88         return (*this)(Pkg.Arch());
  89 }
  90                                                                         /*}}}*/
  91 bool PackageArchitectureMatchesSpecification::operator() (pkgCache::VerIterator const &Ver) {/*{{{*/
  92         return (*this)(Ver.ParentPkg());
  93 }
  94                                                                         /*}}}*/
  95 PackageArchitectureMatchesSpecification::~PackageArchitectureMatchesSpecification() {   /*{{{*/
  96 }
  97                                                                         /*}}}*/
  98
  99 }
 100 }