From 5af79a80004b260826ddb118698c7be4fde079bf Mon Sep 17 00:00:00 2001
From: wirawan <wirawan>
Date: Fri, 22 Jan 2010 18:46:50 +0000
Subject: [PATCH] * Syntactic sugars for quick-and-dirty python programming.

---
 sugar.py | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 sugar.py

diff --git a/sugar.py b/sugar.py
new file mode 100644
index 0000000..2b151df
--- /dev/null
+++ b/sugar.py
@@ -0,0 +1,31 @@
+#!/usr/bin/ipython -pylab
+#
+# $Id: sugar.py,v 1.1 2010-01-22 18:46:50 wirawan Exp $
+#
+# Created: 20100121
+# Wirawan Purwanto
+#
+# Syntactic sugar for python programming. May not be efficient, but many
+# of these tools are nice for quick-and-dirty programming.
+# Beware of their caveats!
+#
+#
+
+def ifelse(cond, trueval, *args):
+  """An alternative to python's own ternary operator, but with multiple
+  conditions to test (like chained if-else-if-else... which is found in
+  e.g. m4 language).
+  This is of course only a syntactic sugar with its inefficiency and
+  dangers (all expressions are evaluated before choosing which one is to
+  select). So, beware!"""
+  if cond:
+    return trueval
+  else:
+    i = 0
+    while i+1 < len(args):
+      if args[i]: return args[i+1]
+      i += 2
+
+    if i < len(args): return args[i]
+
+  return None # Fallback solution: "None"