From 24558c1a19df7dcb936013fe6f2acb9fa01eaab6 Mon Sep 17 00:00:00 2001
From: Marco De Donno <Marco.DeDonno@unil.ch>
Date: Sun, 8 Jan 2017 22:12:07 +0100
Subject: [PATCH] Add the NIST.traditional.NIST.has_field() function

---
 NIST/traditional/__init__.py | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/NIST/traditional/__init__.py b/NIST/traditional/__init__.py
index cbcac30..81670d7 100644
--- a/NIST/traditional/__init__.py
+++ b/NIST/traditional/__init__.py
@@ -1008,6 +1008,18 @@ class NIST( object ):
     # 
     ############################################################################
     
+    def has_field(self, tag, idc = -1):
+        if type( tag ) == str:
+            ntype, tagid = tagSplitter( tag )
+            
+        elif type( tag ) == tuple:
+            ntype, tagid = tag
+        
+        else:
+            raise notImplemented
+        
+        return tag in self.data[ ntype ][ idc ]
+    
     def get_field( self, tag, idc = -1 ):
         """
             Get the content of a specific tag in the NIST object.
-- 
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