X-Git-Url: http://dolda2000.com/gitweb/?p=didex.git;a=blobdiff_plain;f=didex%2Findex.py;h=a2828cedd421e6e8d4a7de8cc976296fd956058b;hp=a1ca06182a5c43ca322cc78d7350486cc66082db;hb=cbf73d3a70b97f17f1f5431eee1e73dbc56a7f8e;hpb=eb2746916b1d19ab025714925d8d254716c498e3

diff --git a/didex/index.py b/didex/index.py
index a1ca061..a2828ce 100644
--- a/didex/index.py
+++ b/didex/index.py
@@ -1,7 +1,9 @@
-import struct, contextlib
+import struct, contextlib, math
 from . import db, lib
 from .db import bd, txnfun
 
+__all__ = ["maybe", "t_int", "t_uint", "t_float", "t_str", "ordered"]
+
 deadlock = bd.DBLockDeadlockError
 notfound = bd.DBNotFoundError
 
@@ -47,7 +49,25 @@ class maybe(object):
         else:
             return self.bk.compare(a[1:], b[1:])
 
-t_int = simpletype.struct(">Q")
+def floatcmp(a, b):
+    if math.isnan(a) and math.isnan(b):
+        return 0
+    elif math.isnan(a):
+        return -1
+    elif math.isnan(b):
+        return 1
+    elif a < b:
+        return -1
+    elif a > b:
+        return 1
+    else:
+        return 0
+
+t_int = simpletype.struct(">q")
+t_uint = simpletype.struct(">Q")
+t_float = simpletype.struct(">d")
+t_float.compare = floatcmp
+t_str = simpletype((lambda ob: ob.encode("utf-8")), (lambda dat: dat.decode("utf-8")))
 
 class index(object):
     def __init__(self, db, name, datatype):