Merge remote-tracking branch 'upstream/debian/experimental' into feature/acq-trans

Conflicts:
	apt-pkg/acquire-item.cc
	apt-pkg/acquire-item.h
	methods/copy.cc
	test/integration/test-hashsum-verification

9 files changed, 275 insertions, 194 deletions

diff --git a/apt-private/private-cacheset.cc b/apt-private/private-cacheset.cc
index e37e7b227..eb77be274 100644
--- a/apt-private/private-cacheset.cc
+++ b/apt-private/private-cacheset.cc
@@ -14,74 +14,77 @@
 
 #include <apti18n.h>
 
-bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
-                                 LocalitySortedVersionSet &output_set,
-                                 OpProgress &progress)
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+                                 APT::VersionContainerInterface * const vci,
+                                 OpProgress * const progress)
 {
     Matcher null_matcher = Matcher();
-    return GetLocalitySortedVersionSet(CacheFile, output_set, 
+    return GetLocalitySortedVersionSet(CacheFile, vci,
                                        null_matcher, progress);
 }
 
-bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
-                                 LocalitySortedVersionSet &output_set,
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+                                 APT::VersionContainerInterface * const vci,
                                  Matcher &matcher,
-                                 OpProgress &progress)
+                                 OpProgress * const progress)
 {
    pkgCache *Cache = CacheFile.GetPkgCache();
    pkgDepCache *DepCache = CacheFile.GetDepCache();
+   APT::CacheSetHelper helper(false);
 
    int Done=0;
-   progress.SubProgress(Cache->Head().PackageCount, _("Sorting"));
+   if (progress != NULL)
+      progress->SubProgress(Cache->Head().PackageCount, _("Sorting"));
+
+   bool const insertCurrentVer = _config->FindB("APT::Cmd::Installed", false);
+   bool const insertUpgradable = _config->FindB("APT::Cmd::Upgradable", false);
+   bool const insertManualInstalled = _config->FindB("APT::Cmd::Manual-Installed", false);
+
    for (pkgCache::PkgIterator P = Cache->PkgBegin(); P.end() == false; ++P)
    {
-      if (Done%500 == 0)
-         progress.Progress(Done);
-      Done++;
+      if (progress != NULL)
+      {
+	 if (Done % 500 == 0)
+	    progress->Progress(Done);
+	 ++Done;
+      }
+
+      // exclude virtual pkgs
+      if (P->VersionList == 0)
+	 continue;
 
       if ((matcher)(P) == false)
-         continue;
+	 continue;
 
-      // exclude virtual pkgs
-      if (P.VersionList() == 0)
-         continue;
       pkgDepCache::StateCache &state = (*DepCache)[P];
-      if (_config->FindB("APT::Cmd::Installed") == true)
+      if (insertCurrentVer == true)
       {
-         if (P.CurrentVer() != NULL)
-         {
-            output_set.insert(P.CurrentVer());
-         }
+	 if (P->CurrentVer != 0)
+	    vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::INSTALLED, helper);
       }
-      else if (_config->FindB("APT::Cmd::Upgradable") == true)
+      else if (insertUpgradable == true)
       {
-         if(P.CurrentVer() && state.Upgradable())
-         {
-             pkgPolicy *policy = CacheFile.GetPolicy();
-             output_set.insert(policy->GetCandidateVer(P));
-         }
+	 if(P.CurrentVer() && state.Upgradable())
+	    vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::CANDIDATE, helper);
       }
-      else if (_config->FindB("APT::Cmd::Manual-Installed") == true)
+      else if (insertManualInstalled == true)
       {
-         if (P.CurrentVer() && 
-             ((*DepCache)[P].Flags & pkgCache::Flag::Auto) == false)
-         {
-             pkgPolicy *policy = CacheFile.GetPolicy();
-             output_set.insert(policy->GetCandidateVer(P));
-         }
+	 if (P.CurrentVer() &&
+	       ((*DepCache)[P].Flags & pkgCache::Flag::Auto) == false)
+	    vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::CANDIDATE, helper);
       }
-      else 
+      else
       {
-         pkgPolicy *policy = CacheFile.GetPolicy();
-         if (policy->GetCandidateVer(P).IsGood())
-            output_set.insert(policy->GetCandidateVer(P));
-         else 
-            // no candidate, this may happen for packages in 
-            // dpkg "deinstall ok config-file" state - we pick the first ver
-            // (which should be the only one)
-            output_set.insert(P.VersionList());
+         if (vci->FromPackage(vci, CacheFile, P, APT::VersionContainerInterface::CANDIDATE, helper) == false)
+	 {
+	    // no candidate, this may happen for packages in
+	    // dpkg "deinstall ok config-file" state - we pick the first ver
+	    // (which should be the only one)
+	    vci->insert(P.VersionList());
+	 }
       }
    }
-   progress.Done();
+   if (progress != NULL)
+      progress->Done();
    return true;
 }
diff --git a/apt-private/private-cacheset.h b/apt-private/private-cacheset.h
index 854d16922..ca8f4be5d 100644
--- a/apt-private/private-cacheset.h
+++ b/apt-private/private-cacheset.h
@@ -62,13 +62,13 @@ public:
 };
 
 // FIXME: add default argument for OpProgress (or overloaded function)
-bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
-                                    LocalitySortedVersionSet &output_set,
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+                                    APT::VersionContainerInterface * const vci,
                                     Matcher &matcher,
-                                    OpProgress &progress);
-bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile, 
-                                    LocalitySortedVersionSet &output_set,
-                                    OpProgress &progress);
+                                    OpProgress * const progress);
+bool GetLocalitySortedVersionSet(pkgCacheFile &CacheFile,
+                                    APT::VersionContainerInterface * const vci,
+                                    OpProgress * const progress);
 
 
 // CacheSetHelper saving virtual packages				/*{{{*/
diff --git a/apt-private/private-cmndline.cc b/apt-private/private-cmndline.cc
index a21a9dc8c..a4490f5b4 100644
--- a/apt-private/private-cmndline.cc
+++ b/apt-private/private-cmndline.cc
@@ -70,6 +70,8 @@ static bool addArgumentsAPTCache(std::vector<CommandLine::Args> &Args, char cons
    else
       return false;
 
+   bool const found_something = Args.empty() == false;
+
    // FIXME: move to the correct command(s)
    addArg('g', "generate", "APT::Cache::Generate", 0);
    addArg('t', "target-release", "APT::Default-Release", CommandLine::HasArg);
@@ -77,7 +79,8 @@ static bool addArgumentsAPTCache(std::vector<CommandLine::Args> &Args, char cons
 
    addArg('p', "pkg-cache", "Dir::Cache::pkgcache", CommandLine::HasArg);
    addArg('s', "src-cache", "Dir::Cache::srcpkgcache", CommandLine::HasArg);
-   return true;
+
+   return found_something;
 }
 									/*}}}*/
 static bool addArgumentsAPTCDROM(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
@@ -172,6 +175,8 @@ static bool addArgumentsAPTGet(std::vector<CommandLine::Args> &Args, char const
       addArg('s', "no-act", "APT::Get::Simulate", 0);
    }
 
+   bool const found_something = Args.empty() == false;
+
    // FIXME: move to the correct command(s)
    addArg('d',"download-only","APT::Get::Download-Only",0);
    addArg('y',"yes","APT::Get::Assume-Yes",0);
@@ -197,7 +202,7 @@ static bool addArgumentsAPTGet(std::vector<CommandLine::Args> &Args, char const
    addArg(0,"install-suggests","APT::Install-Suggests",CommandLine::Boolean);
    addArg(0,"fix-policy","APT::Get::Fix-Policy-Broken",0);
 
-   return true;
+   return found_something;
 }
 									/*}}}*/
 static bool addArgumentsAPTMark(std::vector<CommandLine::Args> &Args, char const * const Cmd)/*{{{*/
diff --git a/apt-private/private-list.cc b/apt-private/private-list.cc
index e85aaf64c..aa3a2c24b 100644
--- a/apt-private/private-list.cc
+++ b/apt-private/private-list.cc
@@ -77,15 +77,14 @@ private:
 };
 									/*}}}*/
 static void ListAllVersions(pkgCacheFile &CacheFile, pkgRecords &records,/*{{{*/
-                     pkgCache::PkgIterator P,    
-                     std::ostream &outs,
-                     bool include_summary=true)
+                     pkgCache::PkgIterator const &P, std::ostream &outs,
+                     std::string const &format)
 {
    for (pkgCache::VerIterator Ver = P.VersionList();
         Ver.end() == false; ++Ver)
    {
-      ListSingleVersion(CacheFile, records, Ver, outs, include_summary);
-      outs << "\n";
+      ListSingleVersion(CacheFile, records, Ver, outs, format);
+      outs << std::endl;
    }
 }
 									/*}}}*/
@@ -109,10 +108,9 @@ bool DoList(CommandLine &Cmd)
       patterns = Cmd.FileList + 1;
    }
 
-   std::map<std::string, std::string> output_map;
-   std::map<std::string, std::string>::const_iterator K;
-
-   bool includeSummary = _config->FindB("APT::Cmd::List-Include-Summary");
+   std::string format = "${color:highlight}${Package}${color:neutral}/${Origin} ${Version} ${Architecture}${ }${apt:Status}";
+   if (_config->FindB("APT::Cmd::List-Include-Summary", false) == true)
+      format += "\n  ${Description}\n";
 
    PackageNameMatcher matcher(patterns);
    LocalitySortedVersionSet bag;
@@ -121,37 +119,34 @@ bool DoList(CommandLine &Cmd)
                             Cache->Head().PackageCount, 
                             Cache->Head().PackageCount,
                             _("Listing"));
-   GetLocalitySortedVersionSet(CacheFile, bag, matcher, progress);
-   bool ShowAllVersions = _config->FindB("APT::Cmd::All-Versions", false);
+   GetLocalitySortedVersionSet(CacheFile, &bag, matcher, &progress);
+   bool const ShowAllVersions = _config->FindB("APT::Cmd::All-Versions", false);
+   std::map<std::string, std::string> output_map;
    for (LocalitySortedVersionSet::iterator V = bag.begin(); V != bag.end(); ++V)
    {
       std::stringstream outs;
       if(ShowAllVersions == true)
-      {
-         ListAllVersions(CacheFile, records, V.ParentPkg(), outs, includeSummary);
-         output_map.insert(std::make_pair<std::string, std::string>(
-            V.ParentPkg().Name(), outs.str()));
-      } else {
-         ListSingleVersion(CacheFile, records, V, outs, includeSummary);
-         output_map.insert(std::make_pair<std::string, std::string>(
-                           V.ParentPkg().Name(), outs.str()));
-      }
+         ListAllVersions(CacheFile, records, V.ParentPkg(), outs, format);
+      else
+         ListSingleVersion(CacheFile, records, V, outs, format);
+      output_map.insert(std::make_pair<std::string, std::string>(
+	       V.ParentPkg().Name(), outs.str()));
    }
 
    // FIXME: SORT! and make sorting flexible (alphabetic, by pkg status)
    // output the sorted map
+   std::map<std::string, std::string>::const_iterator K;
    for (K = output_map.begin(); K != output_map.end(); ++K)
       std::cout << (*K).second << std::endl;
 
-
    // be nice and tell the user if there is more to see
    if (bag.size() == 1 && ShowAllVersions == false)
    {
       // start with -1 as we already displayed one version
       int versions = -1;
       pkgCache::VerIterator Ver = *bag.begin();
-      for ( ; Ver.end() == false; Ver++)
-         versions++;
+      for ( ; Ver.end() == false; ++Ver)
+         ++versions;
       if (versions > 0)
          _error->Notice(P_("There is %i additional version. Please use the '-a' switch to see it", "There are %i additional versions. Please use the '-a' switch to see them.", versions), versions);
    }
diff --git a/apt-private/private-output.cc b/apt-private/private-output.cc
index 522f7682d..fc76a05bc 100644
--- a/apt-private/private-output.cc
+++ b/apt-private/private-output.cc
@@ -164,15 +164,26 @@ static std::string GetVersion(pkgCacheFile &/*CacheFile*/, pkgCache::VerIterator
 									/*}}}*/
 static std::string GetArchitecture(pkgCacheFile &CacheFile, pkgCache::PkgIterator P)/*{{{*/
 {
-   pkgPolicy *policy = CacheFile.GetPolicy();
-   pkgCache::VerIterator inst = P.CurrentVer();
-   pkgCache::VerIterator cand = policy->GetCandidateVer(P);
-
-   // this may happen for packages in dpkg "deinstall ok config-file" state
-   if (inst.IsGood() == false && cand.IsGood() == false)
-      return P.VersionList().Arch();
-
-   return inst ? inst.Arch() : cand.Arch();
+   if (P->CurrentVer == 0)
+   {
+      pkgDepCache * const DepCache = CacheFile.GetDepCache();
+      pkgDepCache::StateCache const &state = (*DepCache)[P];
+      if (state.CandidateVer != NULL)
+      {
+	 pkgCache::VerIterator const CandV(CacheFile, state.CandidateVer);
+	 return CandV.Arch();
+      }
+      else
+      {
+	 pkgCache::VerIterator const V = P.VersionList();
+	 if (V.end() == false)
+	    return V.Arch();
+	 else
+	    return P.Arch();
+      }
+   }
+   else
+      return P.CurrentVer().Arch();
 }
 									/*}}}*/
 static std::string GetShortDescription(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::PkgIterator P)/*{{{*/
@@ -196,81 +207,90 @@ static std::string GetShortDescription(pkgCacheFile &CacheFile, pkgRecords &reco
    return ShortDescription;
 }
 									/*}}}*/
-void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records,	/*{{{*/
-                       pkgCache::VerIterator V, std::ostream &out,
-                       bool include_summary)
+static std::string GetLongDescription(pkgCacheFile &CacheFile, pkgRecords &records, pkgCache::PkgIterator P)/*{{{*/
 {
-   pkgCache::PkgIterator P = V.ParentPkg();
+   pkgPolicy *policy = CacheFile.GetPolicy();
 
-   pkgDepCache *DepCache = CacheFile.GetDepCache();
-   pkgDepCache::StateCache &state = (*DepCache)[P];
+   pkgCache::VerIterator ver;
+   if (P->CurrentVer != 0)
+      ver = P.CurrentVer();
+   else
+      ver = policy->GetCandidateVer(P);
+
+   std::string const EmptyDescription = "(none)";
+   if(ver.end() == true)
+      return EmptyDescription;
 
-   std::string suite = GetArchiveSuite(CacheFile, V);
-   std::string name_str = P.Name();
+   pkgCache::DescIterator const Desc = ver.TranslatedDescription();
+   pkgRecords::Parser & parser = records.Lookup(Desc.FileList());
+   std::string const longdesc = parser.LongDesc();
+   if (longdesc.empty() == true)
+      return EmptyDescription;
+   return SubstVar(longdesc, "\n ", "\n  ");
+}
+									/*}}}*/
+void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records,	/*{{{*/
+                       pkgCache::VerIterator const &V, std::ostream &out,
+                       std::string const &format)
+{
+   pkgCache::PkgIterator const P = V.ParentPkg();
+   pkgDepCache * const DepCache = CacheFile.GetDepCache();
+   pkgDepCache::StateCache const &state = (*DepCache)[P];
 
+   std::string output;
    if (_config->FindB("APT::Cmd::use-format", false))
+      output = _config->Find("APT::Cmd::format", "${db::Status-Abbrev} ${Package} ${Version} ${Origin} ${Description}");
+   else
+      output = format;
+
+   // FIXME: some of these names are really icky – and all is nowhere documented
+   output = SubstVar(output, "${db::Status-Abbrev}", GetFlagsStr(CacheFile, P));
+   output = SubstVar(output, "${Package}", P.Name());
+   std::string const ArchStr = GetArchitecture(CacheFile, P);
+   output = SubstVar(output, "${Architecture}", ArchStr);
+   std::string const InstalledVerStr = GetInstalledVersion(CacheFile, P);
+   output = SubstVar(output, "${installed:Version}", InstalledVerStr);
+   std::string const CandidateVerStr = GetCandidateVersion(CacheFile, P);
+   output = SubstVar(output, "${candidate:Version}", CandidateVerStr);
+   std::string const VersionStr = GetVersion(CacheFile, V);
+   output = SubstVar(output, "${Version}", VersionStr);
+   output = SubstVar(output, "${Origin}", GetArchiveSuite(CacheFile, V));
+
+   std::string StatusStr = "";
+   if (P->CurrentVer != 0)
    {
-      std::string format = _config->Find("APT::Cmd::format", "${db::Status-Abbrev} ${Package} ${Version} ${Origin} ${Description}");
-      std::string output = format;
-   
-      output = SubstVar(output, "${db::Status-Abbrev}", GetFlagsStr(CacheFile, P));
-      output = SubstVar(output, "${Package}", name_str);
-      output = SubstVar(output, "${installed:Version}", GetInstalledVersion(CacheFile, P));
-      output = SubstVar(output, "${candidate:Version}", GetCandidateVersion(CacheFile, P));
-      output = SubstVar(output, "${Version}", GetVersion(CacheFile, V));
-      output = SubstVar(output, "${Description}", GetShortDescription(CacheFile, records, P));
-      output = SubstVar(output, "${Origin}", GetArchiveSuite(CacheFile, V));
-      out << output;
-   } else {
-      // raring/linux-kernel version [upradable: new-version]
-      //    description
-      pkgPolicy *policy = CacheFile.GetPolicy();
-      std::string VersionStr = GetVersion(CacheFile, V);
-      std::string CandidateVerStr = GetCandidateVersion(CacheFile, P);
-      std::string InstalledVerStr = GetInstalledVersion(CacheFile, P);
-      std::string StatusStr;
-      if(P.CurrentVer() == V && state.Upgradable())
+      if (P.CurrentVer() == V)
       {
-         strprintf(StatusStr, _("[installed,upgradable to: %s]"),
-                   CandidateVerStr.c_str());
-      } else if (P.CurrentVer() == V) {
-         if(!V.Downloadable())
-            StatusStr = _("[installed,local]");
-         else
-            if(V.Automatic() && state.Garbage)
-               StatusStr = _("[installed,auto-removable]");
-            else if (state.Flags & pkgCache::Flag::Auto)
-               StatusStr = _("[installed,automatic]");
-            else
-               StatusStr = _("[installed]");
-      } else if (P.CurrentVer() && 
-                 policy->GetCandidateVer(P) == V && 
-                 state.Upgradable()) {
-            strprintf(StatusStr, _("[upgradable from: %s]"),
-                      InstalledVerStr.c_str());
-      } else {
-         if (V.ParentPkg()->CurrentState == pkgCache::State::ConfigFiles)
-            StatusStr = _("[residual-config]");
-         else
-            StatusStr = "";
-      }
-      out << std::setiosflags(std::ios::left)
-          << _config->Find("APT::Color::Highlight", "")
-          << name_str 
-          << _config->Find("APT::Color::Neutral", "")
-          << "/" << suite
-          << " "
-          << VersionStr << " " 
-          << GetArchitecture(CacheFile, P);
-      if (StatusStr != "") 
-         out << " " << StatusStr;
-      if (include_summary)
-      {
-         out << std::endl 
-             << "  " << GetShortDescription(CacheFile, records, P)
-             << std::endl;
+	 if (state.Upgradable() && state.CandidateVer != NULL)
+	    strprintf(StatusStr, _("[installed,upgradable to: %s]"),
+		  CandidateVerStr.c_str());
+	 else if (V.Downloadable() == false)
+	    StatusStr = _("[installed,local]");
+	 else if(V.Automatic() == true && state.Garbage == true)
+	    StatusStr = _("[installed,auto-removable]");
+	 else if ((state.Flags & pkgCache::Flag::Auto) == pkgCache::Flag::Auto)
+	    StatusStr = _("[installed,automatic]");
+	 else
+	    StatusStr = _("[installed]");
       }
+      else if (state.CandidateVer == V && state.Upgradable())
+	 strprintf(StatusStr, _("[upgradable from: %s]"),
+	       InstalledVerStr.c_str());
    }
+   else if (V.ParentPkg()->CurrentState == pkgCache::State::ConfigFiles)
+      StatusStr = _("[residual-config]");
+   output = SubstVar(output, "${apt:Status}", StatusStr);
+   output = SubstVar(output, "${color:highlight}", _config->Find("APT::Color::Highlight", ""));
+   output = SubstVar(output, "${color:neutral}", _config->Find("APT::Color::Neutral", ""));
+   output = SubstVar(output, "${Description}", GetShortDescription(CacheFile, records, P));
+   output = SubstVar(output, "${LongDescription}", GetLongDescription(CacheFile, records, P));
+   output = SubstVar(output, "${ }${ }", "${ }");
+   output = SubstVar(output, "${ }\n", "\n");
+   output = SubstVar(output, "${ }", " ");
+   if (APT::String::Endswith(output, " ") == true)
+      output.erase(output.length() - 1);
+
+   out << output;
 }
 									/*}}}*/
 // ShowList - Show a list						/*{{{*/
diff --git a/apt-private/private-output.h b/apt-private/private-output.h
index 6f3a964d7..e0dc9bf62 100644
--- a/apt-private/private-output.h
+++ b/apt-private/private-output.h
@@ -23,8 +23,8 @@ APT_PUBLIC extern unsigned int ScreenWidth;
 APT_PUBLIC bool InitOutput();
 
 void ListSingleVersion(pkgCacheFile &CacheFile, pkgRecords &records,
-                       pkgCache::VerIterator V, std::ostream &out,
-                       bool include_summary=true);
+                       pkgCache::VerIterator const &V, std::ostream &out,
+                       std::string const &format);
 
 
 // helper to describe global state
diff --git a/apt-private/private-search.cc b/apt-private/private-search.cc
index ecd5d7fad..6bce9ffa4 100644
--- a/apt-private/private-search.cc
+++ b/apt-private/private-search.cc
@@ -32,61 +32,95 @@ bool FullTextSearch(CommandLine &CmdL)					/*{{{*/
    pkgCacheFile CacheFile;
    pkgCache *Cache = CacheFile.GetPkgCache();
    pkgDepCache::Policy *Plcy = CacheFile.GetPolicy();
-   pkgRecords records(CacheFile);
    if (unlikely(Cache == NULL || Plcy == NULL))
       return false;
 
-   const char **patterns;
-   patterns = CmdL.FileList + 1;
+   // Make sure there is at least one argument
+   unsigned int const NumPatterns = CmdL.FileSize() -1;
+   if (NumPatterns < 1)
+      return _error->Error(_("You must give at least one search pattern"));
+
+#define APT_FREE_PATTERNS() for (std::vector<regex_t>::iterator P = Patterns.begin(); \
+      P != Patterns.end(); ++P) { regfree(&(*P)); }
+
+   // Compile the regex pattern
+   std::vector<regex_t> Patterns;
+   for (unsigned int I = 0; I != NumPatterns; ++I)
+   {
+      regex_t pattern;
+      if (regcomp(&pattern, CmdL.FileList[I + 1], REG_EXTENDED | REG_ICASE | REG_NOSUB) != 0)
+      {
+	 APT_FREE_PATTERNS();
+	 return _error->Error("Regex compilation error");
+      }
+      Patterns.push_back(pattern);
+   }
+
+   bool const NamesOnly = _config->FindB("APT::Cache::NamesOnly", false);
 
    std::map<std::string, std::string> output_map;
-   std::map<std::string, std::string>::const_iterator K;
 
    LocalitySortedVersionSet bag;
    OpTextProgress progress(*_config);
    progress.OverallProgress(0, 100, 50,  _("Sorting"));
-   GetLocalitySortedVersionSet(CacheFile, bag, progress);
+   GetLocalitySortedVersionSet(CacheFile, &bag, &progress);
    LocalitySortedVersionSet::iterator V = bag.begin();
 
    progress.OverallProgress(50, 100, 50,  _("Full Text Search"));
    progress.SubProgress(bag.size());
+   pkgRecords records(CacheFile);
+
+   std::string format = "${color:highlight}${Package}${color:neutral}/${Origin} ${Version} ${Architecture}${ }${apt:Status}\n";
+   if (_config->FindB("APT::Cache::ShowFull",false) == false)
+      format += "  ${Description}\n";
+   else
+      format += "  ${LongDescription}\n";
+
    int Done = 0;
+   std::vector<bool> PkgsDone(Cache->Head().PackageCount, false);
    for ( ;V != bag.end(); ++V)
    {
       if (Done%500 == 0)
          progress.Progress(Done);
       ++Done;
-      
-      int i;
+
+      // we want to list each package only once
+      pkgCache::PkgIterator const P = V.ParentPkg();
+      if (PkgsDone[P->ID] == true)
+	 continue;
+
+      char const * const PkgName = P.Name();
       pkgCache::DescIterator Desc = V.TranslatedDescription();
       pkgRecords::Parser &parser = records.Lookup(Desc.FileList());
-     
+      std::string const LongDesc = parser.LongDesc();
+
       bool all_found = true;
-      for(i=0; patterns[i] != NULL; ++i)
+      for (std::vector<regex_t>::const_iterator pattern = Patterns.begin();
+	    pattern != Patterns.end(); ++pattern)
       {
-         // FIXME: use regexp instead of simple find()
-         const char *pattern = patterns[i];
-         all_found &=  (
-            strstr(V.ParentPkg().Name(), pattern) != NULL ||
-            strcasestr(parser.ShortDesc().c_str(), pattern) != NULL ||
-            strcasestr(parser.LongDesc().c_str(), pattern) != NULL);
-         // search patterns are AND by default so we can skip looking further
-         // on the first mismatch
-         if(all_found == false)
-            break;
+	 if (regexec(&(*pattern), PkgName, 0, 0, 0) == 0)
+	    continue;
+	 else if (NamesOnly == false && regexec(&(*pattern), LongDesc.c_str(), 0, 0, 0) == 0)
+	    continue;
+	 // search patterns are AND, so one failing fails all
+	 all_found = false;
+	 break;
       }
-      if (all_found)
+      if (all_found == true)
       {
-            std::stringstream outs;
-            ListSingleVersion(CacheFile, records, V, outs);
-            output_map.insert(std::make_pair<std::string, std::string>(
-                                 V.ParentPkg().Name(), outs.str()));
+	 PkgsDone[P->ID] = true;
+	 std::stringstream outs;
+	 ListSingleVersion(CacheFile, records, V, outs, format);
+	 output_map.insert(std::make_pair<std::string, std::string>(
+		  PkgName, outs.str()));
       }
    }
+   APT_FREE_PATTERNS();
    progress.Done();
 
    // FIXME: SORT! and make sorting flexible (alphabetic, by pkg status)
    // output the sorted map
+   std::map<std::string, std::string>::const_iterator K;
    for (K = output_map.begin(); K != output_map.end(); ++K)
       std::cout << (*K).second << std::endl;
 
diff --git a/apt-private/private-utils.cc b/apt-private/private-utils.cc
index 9547a1b75..34af83c08 100644
--- a/apt-private/private-utils.cc
+++ b/apt-private/private-utils.cc
@@ -8,45 +8,69 @@
 #include <cstdlib>
 #include <unistd.h>
 
-// DisplayFileInPager - Display File with pager        			/*{{{*/
-void DisplayFileInPager(std::string filename)
+// DisplayFileInPager - Display File with pager				/*{{{*/
+void DisplayFileInPager(std::string const &filename)
 {
-   std::string pager = _config->Find("Dir::Bin::Pager", 
-                                        "/usr/bin/sensible-pager");
-
    pid_t Process = ExecFork();
    if (Process == 0)
    {
       const char *Args[3];
-      Args[0] = pager.c_str();
       Args[1] = filename.c_str();
-      Args[2] = 0;
+      Args[2] = NULL;
+      if (isatty(STDOUT_FILENO) == 1)
+      {
+	 // likely installed, provided by sensible-utils
+	 std::string const pager = _config->Find("Dir::Bin::Pager",
+	       "sensible-pager");
+	 Args[0] = pager.c_str();
+	 execvp(Args[0],(char **)Args);
+	 // lets try some obvious alternatives
+	 Args[0] = getenv("PAGER");
+	 if (Args[0] != NULL)
+	    execvp(Args[0],(char **)Args);
+
+	 Args[0] = "pager";
+	 execvp(Args[0],(char **)Args);
+      }
+      // we could read the file ourselves, but… meh
+      Args[0] = "cat";
       execvp(Args[0],(char **)Args);
       exit(100);
    }
-         
+
    // Wait for the subprocess
-   ExecWait(Process, "sensible-pager", false);
+   ExecWait(Process, "pager", false);
 }
 									/*}}}*/
-// EditFileInSensibleEditor - Edit File with editor    			/*{{{*/
-void EditFileInSensibleEditor(std::string filename)
+// EditFileInSensibleEditor - Edit File with editor			/*{{{*/
+void EditFileInSensibleEditor(std::string const &filename)
 {
-   std::string editor = _config->Find("Dir::Bin::Editor", 
-                                        "/usr/bin/sensible-editor");
-
    pid_t Process = ExecFork();
    if (Process == 0)
    {
+      // likely installed, provided by sensible-utils
+      std::string const editor = _config->Find("Dir::Bin::Editor",
+	    "sensible-editor");
       const char *Args[3];
       Args[0] = editor.c_str();
       Args[1] = filename.c_str();
-      Args[2] = 0;
+      Args[2] = NULL;
+      execvp(Args[0],(char **)Args);
+      // the usual suspects we can try as an alternative
+      Args[0] = getenv("VISUAL");
+      if (Args[0] != NULL)
+	 execvp(Args[0],(char **)Args);
+
+      Args[0] = getenv("EDITOR");
+      if (Args[0] != NULL)
+	 execvp(Args[0],(char **)Args);
+
+      Args[0] = "editor";
       execvp(Args[0],(char **)Args);
       exit(100);
    }
-         
+
    // Wait for the subprocess
-   ExecWait(Process, "sensible-editor", false);
+   ExecWait(Process, "editor", false);
 }
 									/*}}}*/
diff --git a/apt-private/private-utils.h b/apt-private/private-utils.h
index 432699787..8ba480bd4 100644
--- a/apt-private/private-utils.h
+++ b/apt-private/private-utils.h
@@ -5,7 +5,7 @@
 
 #include <string>
 
-APT_PUBLIC void DisplayFileInPager(std::string filename);
-APT_PUBLIC void EditFileInSensibleEditor(std::string filename);
+APT_PUBLIC void DisplayFileInPager(std::string const &filename);
+APT_PUBLIC void EditFileInSensibleEditor(std::string const &filename);
 
 #endif