diff --git a/fulltests/viewbox.svg b/fulltests/viewbox.svg
deleted file mode 100644
index 8714b9e..0000000
--- a/fulltests/viewbox.svg
+++ /dev/null
@@ -1,3 +0,0 @@
-<svg xmlns="http://www.w3.org/2000/svg" width="300" height="200px" viewBox="-0,0 300 200">
-  <rect width="200" height="100" fill="blue"/>
-</svg>
\ No newline at end of file
diff --git a/scour.py b/scour.py
index f484bf6..bbbe5ad 100755
--- a/scour.py
+++ b/scour.py
@@ -604,11 +604,68 @@ def repairStyle(node):
 # This method will do the following:
 # - parse the path data and reserialize
 def cleanPath(element) :
-	path = svg_parser.parse(element.getAttribute('d'))
-	for (cmd,dataset) in path:
-		if not dataset == None:
-			for data in dataset:
-				pass
+	pathObj = svg_parser.parse(element.getAttribute('d'))
+	path = []
+	for (cmd,dataset) in pathObj:
+		if cmd in ['M','m','L','l','T','t']:
+			# one or more tuples, each containing two numbers
+			nums = []
+			for t in dataset:
+				nums.append(t[0])
+				nums.append(t[1])
+			path.append( (cmd, nums) )
+			
+		elif cmd in ['V','v','H','h']:
+			# one or more numbers
+			nums = []
+			for n in dataset:
+				nums.append(n)
+			path.append( (cmd, nums) )
+			
+		elif cmd in ['C','c']:
+			# one or more tuples, each containing three tuples of two numbers each
+			nums = []
+			for t in dataset:
+				for pair in t:
+					nums.append(pair[0])
+					nums.append(pair[1])
+			path.append( (cmd, nums) )
+			
+		elif cmd in ['S','s','Q','q']:
+			# one or more tuples, each containing two tuples of two numbers each
+			nums = []
+			for t in dataset:
+				for pair in t:
+					nums.append(pair[0])
+					nums.append(pair[1])
+			path.append( (cmd, nums) )
+			
+		elif cmd in ['A','a']:
+			# one or more tuples, each containing a tuple of two numbers, a number, a boolean,
+			# another boolean, and a tuple of two numbers
+			nums = []
+			for t in dataset:
+				nums.append( t[0][0] )
+				nums.append( t[0][1] )
+				nums.append( t[1] )
+				
+				if t[2]: nums.append( 1 )
+				else: nums.append( 0 )
+
+				if t[3]: nums.append( 1 )
+				else: nums.append( 0 )
+				
+				nums.append( t[4][0] )
+				nums.append( t[4][1] )
+			path.append( (cmd, nums) )
+		
+		elif cmd in ['Z','z']:
+			path.append( (cmd, []) )
+
+#	for (cmd,dataset) in path:
+#		if not dataset == None:
+#			for data in dataset:
+#				pass
 	element.setAttribute('d', serializePath(path))
 
 # - reserialize the path data with some cleanups:
@@ -618,24 +675,20 @@ def cleanPath(element) :
 #   - adds commas between all values in a subcommand
 def serializePath(pathObj):
 	pathStr = ""
-#	print pathObj
-	for (cmd,dataset) in pathObj:
-		pathStr += cmd 
-		if not dataset == None:
-			for data in dataset:
-				try:
-					c = 0
-					for coord in data:
-						# if coord can be an integer without loss of precision, go for it
-						if int(coord) == coord: pathStr += str(int(coord))
-						else: pathStr += str(coord)
-						# only need the comma if the next number if non-negative
-						if c < len(data)-1 and data[c+1] >= 0:
-							pathStr += ','
-						c += 1
-				except TypeError:
-					pathStr += str(data)
-				pathStr += ' '				
+	for (cmd,data) in pathObj:
+		pathStr += cmd
+		if data != None:
+			c = 0
+			for coord in data:
+				# if coord can be an integer without loss of precision, go for it
+				if int(coord) == coord: pathStr += str(int(coord))
+				else: pathStr += str(coord)
+				
+				# only need the comma if the next number if non-negative
+				if c < len(data)-1 and data[c+1] >= 0:
+					pathStr += ','
+				c += 1
+#		pathStr += ' '
 	return pathStr
 
 # converts raster references to inline images
diff --git a/testscour.py b/testscour.py
index fb5b335..f64aed5 100755
--- a/testscour.py
+++ b/testscour.py
@@ -434,14 +434,7 @@ class RemoveDelimiterBeforeNegativeCoordsInPath(unittest.TestCase):
 		doc = scour.scourXmlFile('unittests/path-truncate-zeroes.svg')
 		path = doc.getElementsByTagNameNS(SVGNS, 'path')[0].getAttribute('d')
 		self.assertEquals(path[4], '-', 
-			'Delimiters not removed before negative coordinate in path data' )
-
-#class RemoveUnreferencedFonts(unittest.TestCase):
-#	def runTest(self):
-#		doc = scour.scourXmlFile('unittests/unreferenced-font.svg')
-#		fonts = doc.documentElement.getElementsByTagNameNS('http://www.w3.org/2000/svg','font')
-#		self.assertEquals(len(fonts), 0,
-#			"Font was not removed from <defs>" )
+			'Delimiters not removed before negative coordinates in path data' )
 
 if __name__ == '__main__':
     unittest.main()
diff --git a/unittests/path-abs-to-rel.svg b/unittests/path-abs-to-rel.svg
new file mode 100644
index 0000000..9c9fa3b
--- /dev/null
+++ b/unittests/path-abs-to-rel.svg
@@ -0,0 +1,3 @@
+<svg xmlns="http://www.w3.org/2000/svg">
+      <path d="M 385.88362,201.47812 v-20 l100,-50 h20 C 505.43501,223.44223 659.42238,164.82405 714.32160,-0.0015300000 C 649.90356,227.13187 497.48814,312.46353 371.30643,277.40123 C 245.12472,242.33893 157.17674,250.88268 121.69357,12.440270 C 211.69357,149.44027 323.87473,190.08578 385.88362,201.47812 z " fill="blue"/>
+</svg>
\ No newline at end of file