X-Git-Url: http://git.onelab.eu/?p=sfa.git;a=blobdiff_plain;f=sfa%2Futil%2Fxrn.py;h=19b1fc18a0f0607ab4dadf4bda36228a11d6b896;hp=60b57b9843ce354a5f33706bb16e0af8a98661c0;hb=cedf37c8661ec0b05349274962bf2db9cfa6a24d;hpb=351b4cb4acbb8a0bd560b1feb249336cd7fa3dec

diff --git a/sfa/util/xrn.py b/sfa/util/xrn.py
index 60b57b98..19b1fc18 100644
--- a/sfa/util/xrn.py
+++ b/sfa/util/xrn.py
@@ -92,16 +92,21 @@ class Xrn:
                 return True
         return False
 
+    ########## basic tools on URNs
     URN_PREFIX = "urn:publicid:IDN"
+    URN_PREFIX_lower = "urn:publicid:idn"
+
+    @staticmethod
+    def is_urn (text):
+        return text.lower().startswith(Xrn.URN_PREFIX_lower)
 
-    ########## basic tools on URNs
     @staticmethod
     def urn_full (urn):
-        if urn.startswith(Xrn.URN_PREFIX): return urn
+        if Xrn.is_urn(urn): return urn
         else: return Xrn.URN_PREFIX+urn
     @staticmethod
     def urn_meaningful (urn):
-        if urn.startswith(Xrn.URN_PREFIX): return urn[len(Xrn.URN_PREFIX):]
+        if Xrn.is_urn(urn): return urn[len(Xrn.URN_PREFIX):]
         else: return urn
     @staticmethod
     def urn_split (urn):
@@ -118,7 +123,7 @@ class Xrn:
         if not xrn: xrn = ""
        
         # user has specified xrn : guess if urn or hrn
-        if xrn.startswith(Xrn.URN_PREFIX):
+        if Xrn.is_urn(xrn):
             self.hrn=None
             self.urn=xrn
             self.urn_to_hrn()
@@ -182,7 +187,7 @@ class Xrn:
         """
         
 #        if not self.urn or not self.urn.startswith(Xrn.URN_PREFIX):
-        if not self.urn.startswith(Xrn.URN_PREFIX):
+        if not Xrn.is_urn(self.urn):
             raise SfaAPIError, "Xrn.urn_to_hrn"
 
         parts = Xrn.urn_split(self.urn)
@@ -216,7 +221,7 @@ class Xrn:
         """
 
 #        if not self.hrn or self.hrn.startswith(Xrn.URN_PREFIX):
-        if self.hrn.startswith(Xrn.URN_PREFIX):
+        if Xrn.is_urn(self.hrn):
             raise SfaAPIError, "Xrn.hrn_to_urn, hrn=%s"%self.hrn
 
         if self.type and self.type.startswith('authority'):