1 files changed, 29 insertions, 0 deletions
diff --git a/src/libutil/regex.hh b/src/libutil/regex.hh
new file mode 100644
index 000000000000..53e31f4edc4a
--- /dev/null
+++ b/src/libutil/regex.hh
@@ -0,0 +1,29 @@
+#pragma once
+
+#include "types.hh"
+
+#include <sys/types.h>
+#include <regex.h>
+
+#include <map>
+
+namespace nix {
+
+MakeError(RegexError, Error)
+
+class Regex
+{
+public:
+    Regex(const string & pattern, bool subs = false);
+    ~Regex();
+    bool matches(const string & s);
+    typedef std::map<unsigned int, string> Subs;
+    bool matches(const string & s, Subs & subs);
+
+private:
+    unsigned nrParens;
+    regex_t preg;
+    string showError(int err);
+};
+
+}