[Nym3-commit] r229 - trunk/nym3

[jr at conuropsis.org]

Author: jr
Date: 2005-05-04 12:32:51 +0200 (Wed, 04 May 2005)
New Revision: 229

Modified:
   trunk/nym3/Mail.py
Log:
Add the bitfield to list conversion


Modified: trunk/nym3/Mail.py
===================================================================
--- trunk/nym3/Mail.py	2005-05-04 10:14:18 UTC (rev 228)
+++ trunk/nym3/Mail.py	2005-05-04 10:32:51 UTC (rev 229)
@@ -103,6 +103,17 @@
         t[q] = t[q] | (1 << r)
     return chr(t[0])+chr(t[1])
 
+def bf2list(bf):
+    """take a 2 octets big endian string and output the associated 
+    list of indexes"""
+    assert (len(bf) == 2 and type(bf) == str)
+    l = []
+    for i in range(2):
+	for j in range(8):
+	    if ord(bf[i]) & (1 << j):
+		l.append(i * 8 + j)
+    return l
+
 def b2s(c):
     """return a string of length 2 representing the byte c in hex"""
     i = ord(c)