From 104e55bb7f593b1ac3c54ffda48a9d72af7fbe6b Mon Sep 17 00:00:00 2001
From: Eelco Dolstra <eelco.dolstra@logicblox.com>
Date: Fri, 3 Oct 2014 18:47:16 +0200
Subject: nix-env: Add regular expression support in selectors

So you can now do things like:

  $ nix-env -qa '.*zip.*'
  $ nix-env -qa '.*(firefox|chromium).*'
---
 src/libexpr/names.cc | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'src/libexpr')

diff --git a/src/libexpr/names.cc b/src/libexpr/names.cc
index 781c2b6468f9..c2b2733347f6 100644
--- a/src/libexpr/names.cc
+++ b/src/libexpr/names.cc
@@ -1,5 +1,6 @@
 #include "names.hh"
 #include "util.hh"
+#include "regex.hh"
 
 
 namespace nix {
@@ -32,7 +33,10 @@ DrvName::DrvName(const string & s) : hits(0)
 
 bool DrvName::matches(DrvName & n)
 {
-    if (name != "*" && name != n.name) return false;
+    if (name != "*") {
+        Regex regex(name);
+        if (!regex.matches(n.name)) return false;
+    }
     if (version != "" && version != n.version) return false;
     return true;
 }
-- 
cgit 1.4.1