From 1a4c9766e0b31795b5d9869c6a98c1bba8380faa Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <jak@debian.org>
Date: Fri, 15 Apr 2011 12:52:45 +0200
Subject: * apt-pkg/policy.cc:   - Allow pinning by glob() expressions, and
 regular expressions     surrounded by slashes (the "/" character).

---
 apt-pkg/policy.cc | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

(limited to 'apt-pkg/policy.cc')

diff --git a/apt-pkg/policy.cc b/apt-pkg/policy.cc
index 94c7fd4af..3d6ec1cdc 100644
--- a/apt-pkg/policy.cc
+++ b/apt-pkg/policy.cc
@@ -216,6 +216,21 @@ void pkgPolicy::CreatePin(pkgVersionMatch::MatchType Type,string Name,
       P->Data = Data;
       return;
    }
+   
+   // Allow pinning by wildcards
+   // TODO: Maybe we should always prefer specific pins over non-
+   // specific ones.
+   if (Name.find("*") != string::npos || Name.find("[") != string::npos
+       || Name.find("?") != string::npos || Name[0] == '/') {
+	  pkgVersionMatch match(Data, Type);
+	  for (pkgCache::PkgIterator P = Cache->PkgBegin();
+	       P != Cache->PkgEnd(); P++) {
+		  if (match.ExpressionMatches(Name, P.Name())) {
+			CreatePin(Type, P.Name(), Data, Priority);
+		  }  
+      }
+      return;
+   }
 
    // Get a spot to put the pin
    pkgCache::GrpIterator Grp = Cache->FindGrp(Name);
-- 
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