# HG changeset patch
# User Teemu Piippo <crimsondusk64@gmail.com>
# Date 1430698274 -10800
# Node ID 3812bfce21e0f38640f103c4b84d3f7c68790e19
# Parent  ad27ab7e6fb6a1b93fe11f60ca5d7d660f001f01
Use a value class

diff -r ad27ab7e6fb6 -r 3812bfce21e0 calc.py
--- a/calc.py	Mon May 04 02:46:09 2015 +0300
+++ b/calc.py	Mon May 04 03:11:14 2015 +0300
@@ -76,6 +76,16 @@
 	def __repr__ (self):
 		return self.__str__()
 
+class Value (object):
+	def __init__ (self, value, base):
+		self.value = value
+
+	def __str__ (self):
+		return '''<value %s>''' % (self.value)
+
+	def __repr__ (self):
+		return self.__str__()
+
 def do_realf (func, *args):
 	for x in args:
 		if x.imag:
@@ -338,7 +348,7 @@
 					raise ValueError ('end of expression encountered while parsing '
 						'base-%d literal' % base)
 
-			return (complex (int (expr[startingIndex:i], base), 0), i)
+			return (Value (int (expr[startingIndex:i], base)), i)
 
 		if expr[0] == 'i':
 			# Special case, we just have 'i' -- need special handling here because otherwise this would
@@ -351,9 +361,9 @@
 		try:
 			while i < len (expr):
 				if expr[i] == 'i':
-					value = complex (0.0, float (expr[:i]))
+					value = Value (float (expr[:i]) * 1j)
 				else:
-					value = complex (float (expr [:i + 1]), 0.0)
+					value = Value (float (expr [:i + 1]))
 				i += 1
 
 			return (value, i)
@@ -537,7 +547,7 @@
 				self.tabs = self.tabs[:-1]
 
 				printFunc (self.tabs + 'Evaluating function call: %s' % (sym))
-				expr[i] = Functions[sym.funcname]['function'] (*sym.args)
+				expr[i] = Value (Functions[sym.funcname]['function'] (*[x.value for x in sym.args]))
 				printFunc (self.tabs + '-> %s' % expr[i])
 
 			i += 1
@@ -561,7 +571,7 @@
 			args = [expr[x] for x in argIndices]
 			argIndices = sorted (argIndices, reverse=True)
 			printFunc (self.tabs + 'Processing: (%s, %d) with args %s' % (op, i, args))
-			expr[i] = op.function (*args)
+			expr[i] = Value (op.function (*[x.value for x in args]))
 			printFunc (self.tabs + '-> %s' % expr[i])
 
 			for i2 in argIndices:
@@ -653,5 +663,5 @@
 		self.process_parens (expr)
 		self.process_functions (expr)
 		self.process_operators (expr)
-		result = self.evaluate (expr, verbose)
+		result = self.evaluate (expr, verbose).value
 		return self.represent (result)