diff --git a/core/src/main/kotlin/eu/iamgio/quarkdown/context/ScopeContext.kt b/core/src/main/kotlin/eu/iamgio/quarkdown/context/ScopeContext.kt
index 85a2a722..b48f746d 100644
--- a/core/src/main/kotlin/eu/iamgio/quarkdown/context/ScopeContext.kt
+++ b/core/src/main/kotlin/eu/iamgio/quarkdown/context/ScopeContext.kt
@@ -21,7 +21,7 @@ class ScopeContext(val parent: Context) : MutableContext(
         get() = parent.documentInfo
 
     override val options: MutableContextOptions
-        get() = (parent.options as? MutableContextOptions) ?: MutableContextOptions()
+        get() = parent.options as? MutableContextOptions ?: MutableContextOptions()
 
     /**
      * If no matching function is found among this [ScopeContext]'s own [libraries],
diff --git a/core/src/main/kotlin/eu/iamgio/quarkdown/function/expression/visitor/AppendExpressionVisitor.kt b/core/src/main/kotlin/eu/iamgio/quarkdown/function/expression/visitor/AppendExpressionVisitor.kt
index e597b25c..0cddbf8b 100644
--- a/core/src/main/kotlin/eu/iamgio/quarkdown/function/expression/visitor/AppendExpressionVisitor.kt
+++ b/core/src/main/kotlin/eu/iamgio/quarkdown/function/expression/visitor/AppendExpressionVisitor.kt
@@ -121,19 +121,19 @@ class AppendExpressionVisitor(private val other: Expression) : ExpressionVisitor
     // [a, b, c] "abc" -> [a, b, c, "abc"]
     override fun visit(value: OrderedCollectionValue<*>): Expression =
         OrderedCollectionValue(
-            value.unwrappedValue + (other.eval() as OutputValue<*>),
+            value.unwrappedValue + other.eval() as OutputValue<*>,
         )
 
     // [a, b, c] "abc" -> [a, b, c, "abc"]
     override fun visit(value: UnorderedCollectionValue<*>): Expression =
         UnorderedCollectionValue(
-            value.unwrappedValue + (other.eval() as OutputValue<*>),
+            value.unwrappedValue + other.eval() as OutputValue<*>,
         )
 
     // [a, b, c] "abc" -> [a, b, c, "abc"]
     override fun visit(value: GeneralCollectionValue<*>): GeneralCollectionValue<*> =
         GeneralCollectionValue(
-            value.unwrappedValue + (other.eval() as OutputValue<*>),
+            value.unwrappedValue + other.eval() as OutputValue<*>,
         )
 
     // CENTER "abc"  -> "CENTERabc"
diff --git a/core/src/main/kotlin/eu/iamgio/quarkdown/lexer/walker/WalkerLexer.kt b/core/src/main/kotlin/eu/iamgio/quarkdown/lexer/walker/WalkerLexer.kt
index 208ba958..7291b85e 100644
--- a/core/src/main/kotlin/eu/iamgio/quarkdown/lexer/walker/WalkerLexer.kt
+++ b/core/src/main/kotlin/eu/iamgio/quarkdown/lexer/walker/WalkerLexer.kt
@@ -23,7 +23,7 @@ abstract class WalkerLexer(source: CharSequence, protected val reader: SourceRea
     fun createTokenDataFromBuffer(): TokenData =
         TokenData(
             text = buffer.toString(),
-            position = (currentIndex - buffer.length) until currentIndex,
+            position = currentIndex - buffer.length until currentIndex,
         ).also { buffer.clear() }
 
     override val currentIndex: Int