Clean parsing

utils/src/main/kotlin/be/vandewalleh/aoc/utils/input/Annotations.kt

@@ -24,3 +24,6 @@ annotation class Text
 
 @DayInput
 annotation class Lines
+
+@DayInput
+annotation class Groups

utils/src/main/kotlin/be/vandewalleh/aoc/utils/input/InputFactory.kt

@@ -60,6 +60,10 @@ class InputFactory(private val resourceLoader: ResourceLoader) {
     fun text(injectionPoint: InjectionPoint<*>): Input<String> =
         injectionPoint.read().wrap()
 
+    @Groups
+    fun groups(injectionPoint: InjectionPoint<*>): Input<List<List<String>>> =
+        injectionPoint.read().split("\n\n").map { it.lines() }.wrap()
+
 
     private fun <T> T.wrap() = Input(this)