diff --git a/src/Grafoscopio-Utils/GrafoscopioUtils.class.st b/src/Grafoscopio-Utils/GrafoscopioUtils.class.st
index a700e79..83c9d5d 100644
--- a/src/Grafoscopio-Utils/GrafoscopioUtils.class.st
+++ b/src/Grafoscopio-Utils/GrafoscopioUtils.class.st
@@ -78,8 +78,11 @@ GrafoscopioUtils class >> sanitize: url [
 
 { #category : #utilities }
 GrafoscopioUtils class >> selectorAndArgumentsFrom: aString [
-	"I return from aString a symbol that contains a message and an array of arguments used in it"
-	| msgArray answer |
+	"I return from aString a dictionary that contains a message and an array of arguments used 
+	in such string. Notice that the keyword message must contain spaces between the ':' and its
+	respective argument. 
+	See GrafoscopioUtilsTest for examples"
+	| msgArray answer keywords selector args |
 	answer := OrderedDictionary new.
 	msgArray := aString splitOn: ':'.
 	msgArray size = 1 
@@ -87,12 +90,18 @@ GrafoscopioUtils class >> selectorAndArgumentsFrom: aString [
 			^ answer
 				at: 'selector' put: (msgArray at: 1) asSymbol;
 				yourself ].
-	msgArray size = 2
-		ifTrue: [ 
-			^ answer
-				at: 'selector' put: ((msgArray at: 1),':') asSymbol;
-				at: 'args' put: (Array with: (msgArray at: 2)); 
-				yourself ].
+	selector := ''.
+	args := OrderedCollection new. 
+	aString 
+		splitOn: Character space
+		do: [ :part | 
+			part endsWithAColon 
+				ifTrue: [ selector := selector, part ]
+				ifFalse: [ args add: part ] ].
+	answer 
+		at: 'selector' put: selector asSymbol;
+		at: 'args' put: args asArray.
+	^ answer
 ]
 
 { #category : #updating }
diff --git a/src/Grafoscopio-Utils/GrafoscopioUtilsTest.class.st b/src/Grafoscopio-Utils/GrafoscopioUtilsTest.class.st
new file mode 100644
index 0000000..76fcf6e
--- /dev/null
+++ b/src/Grafoscopio-Utils/GrafoscopioUtilsTest.class.st
@@ -0,0 +1,8 @@
+"
+A GrafoscopioUtilsTest is a test class for testing the behavior of GrafoscopioUtils
+"
+Class {
+	#name : #GrafoscopioUtilsTest,
+	#superclass : #TestCase,
+	#category : #'Grafoscopio-Utils-Tests'
+}