1 files changed, 39 insertions, 0 deletions
diff --git a/configutil/src/lib/tags.cpp b/configutil/src/lib/tags.cpp
new file mode 100644
index 00000000000..50b01c80ba2
--- /dev/null
+++ b/configutil/src/lib/tags.cpp
@@ -0,0 +1,39 @@
+// Copyright 2016 Yahoo Inc. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
+
+#include <vespa/fastos/fastos.h>
+
+#include <vespa/vespalib/stllike/string.h>
+
+#include "tags.h"
+
+namespace configdefinitions {
+
+vespalib::string upcase(const vespalib::string &orig)
+{
+    vespalib::string upper(orig);
+    for (size_t i = 0; i < orig.size(); ++i) {
+        int l = (unsigned char)orig[i];
+        upper[i] = (unsigned char)toupper(l);
+    }
+    return upper;
+}
+
+bool tagsContain(const vespalib::string &tags, const vespalib::string &tag)
+{
+    vespalib::string allupper = upcase(tags);
+    vespalib::string tagupper = upcase(tag);
+
+    for (;;) {
+        size_t pos = allupper.rfind(' ');
+        if (pos == vespalib::string::npos) {
+            break;
+        }
+        if (allupper.substr(pos+1) == tagupper) {
+            return true;
+        }
+        allupper.resize(pos);
+    }
+    return (allupper == tagupper);
+}
+
+}