From 89da5d7c3d9cf5bfd4a374e23fd924bbffdeaf5c Mon Sep 17 00:00:00 2001
From: Guido van Rossum <guido@python.org>
Date: Tue, 22 Aug 2006 00:21:25 +0000
Subject: Kill reduce().  A coproduction of John Reese, Jacques Frechet, and
 Alex M.

---
 Lib/idlelib/MultiCall.py | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

(limited to 'Lib/idlelib/MultiCall.py')

diff --git a/Lib/idlelib/MultiCall.py b/Lib/idlelib/MultiCall.py
index 4f5311586f..1c6103ad64 100644
--- a/Lib/idlelib/MultiCall.py
+++ b/Lib/idlelib/MultiCall.py
@@ -106,24 +106,26 @@ class _SimpleBinder:
 # _state_subsets gives for each combination of modifiers, or *state*,
 # a list of the states which are a subset of it. This list is ordered by the
 # number of modifiers is the state - the most specific state comes first.
+# XXX rewrite without overusing functional primitives :-)
 _states = range(1 << len(_modifiers))
-_state_names = [reduce(lambda x, y: x + y,
-                       [_modifiers[i][0]+'-' for i in range(len(_modifiers))
-                        if (1 << i) & s],
-                       "")
+_state_names = [''.join(m[0]+'-'
+                        for i, m in enumerate(_modifiers)
+                        if (1 << i) & s)
                 for s in _states]
 _state_subsets = map(lambda i: filter(lambda j: not (j & (~i)), _states),
-                      _states)
+                     _states)
 for l in _state_subsets:
     l.sort(lambda a, b, nummod = lambda x: len(filter(lambda i: (1<<i) & x,
                                                       range(len(_modifiers)))):
            nummod(b) - nummod(a))
 # _state_codes gives for each state, the portable code to be passed as mc_state
-_state_codes = [reduce(lambda x, y: x | y,
-                       [_modifier_masks[i] for i in range(len(_modifiers))
-                        if (1 << i) & s],
-                       0)
-                for s in _states]
+_state_codes = []
+for s in _states:
+    r = 0
+    for i in range(len(_modifiers)):
+        if (1 << i) & s:
+            r |= _modifier_masks[i]
+    _state_codes.append(r)
 
 class _ComplexBinder:
     # This class binds many functions, and only unbinds them when it is deleted.
-- 
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