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
  13 #include <string>
  14
  15 #include <regex.h>
  16
  17 #include <apti18n.h>
  18                                                                         /*}}}*/
  19 namespace APT {
  20 namespace CacheFilter {
  21 PackageNameMatchesRegEx::PackageNameMatchesRegEx(std::string const &Pattern) : d(NULL) {/*{{{*/
  22         pattern = new regex_t;
  23         int const Res = regcomp(pattern, Pattern.c_str(), REG_EXTENDED | REG_ICASE | REG_NOSUB);
  24         if (Res == 0)
  25                 return;
  26
  27         delete pattern;
  28         pattern = NULL;
  29         char Error[300];
  30         regerror(Res, pattern, Error, sizeof(Error));
  31         _error->Error(_("Regex compilation error - %s"), Error);
  32 }
  33                                                                         /*}}}*/
  34 bool PackageNameMatchesRegEx::operator() (pkgCache::PkgIterator const &Pkg) {/*{{{*/
  35         if (unlikely(pattern == NULL))
  36                 return false;
  37         else
  38                 return regexec(pattern, Pkg.Name(), 0, 0, 0) == 0;
  39 }
  40                                                                         /*}}}*/
  41 bool PackageNameMatchesRegEx::operator() (pkgCache::GrpIterator const &Grp) {/*{{{*/
  42         if (unlikely(pattern == NULL))
  43                 return false;
  44         else
  45                 return regexec(pattern, Grp.Name(), 0, 0, 0) == 0;
  46 }
  47                                                                         /*}}}*/
  48 PackageNameMatchesRegEx::~PackageNameMatchesRegEx() {                   /*{{{*/
  49         if (pattern == NULL)
  50                 return;
  51         regfree(pattern);
  52         delete pattern;
  53 }
  54                                                                         /*}}}*/
  55 }
  56 }