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[asdcplib.git] / src / KM_util.h

diff --git a/src/KM_util.h b/src/KM_util.h
index 51334dead292f2d9addbdc0a2e7e21910270d52f..e8004c151ac91f9080ebcda1f5109050a2b823ac 100755 (executable)
--- a/src/KM_util.h
+++ b/src/KM_util.h
@@ -36,7 +36,6 @@ THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #include <KM_error.h>
 #include <KM_tai.h>
 #include <string.h>
-#include <string>
 #include <list>
 
 namespace Kumu
@@ -544,6 +543,27 @@ namespace Kumu
   // adjacent instances of the separator. E.g., "/foo//bar/" will return ["", "foo", "", "bar", ""].
   std::list<std::string> km_token_split(const std::string& str, const std::string& separator);
 
+  // Join the tokens in the given list using delimiter. If prefix is defined then each token
+  // will be concatenated with the prefix before being added to the composite string.
+  template <class T>
+    std::string
+    km_join(const T& list, const std::string& delimiter, const std::string& prefix = "")
+    {
+      std::string result;
+
+      for ( typename T::const_iterator i = list.begin(); i != list.end(); ++i )
+       {
+         if ( i != list.begin() )
+           {
+             result += delimiter;
+           }
+      
+         result += prefix + *i;
+       }
+
+      return result;
+    }
+
 } // namespace Kumu