Binary file core_solution1/collatz.jar has changed

Binary file core_solution2/docdiff.jar has changed

Binary file core_solution3/postfix.jar has changed

Binary file core_solution3/postfix2.jar has changed

Binary file core_templates1/collatz.jar has changed

Binary file core_templates2/docdiff.jar has changed

--- a/core_templates2/docdiff.scala	Fri Dec 08 00:54:36 2023 +0000
+++ b/core_templates2/docdiff.scala	Mon Dec 25 01:10:55 2023 +0100
@@ -8,7 +8,7 @@
 //======================
 
 //(1)
-def clean(s: String) : List[String] = ???
+def clean(s: String) : List[String] = List("bla")
   
 
 

Binary file core_templates3/postfix.jar has changed

Binary file core_templates3/postfix2.jar has changed

Binary file main_solution3/re.jar has changed

--- a/main_solution5/bfc.scala	Fri Dec 08 00:54:36 2023 +0000
+++ b/main_solution5/bfc.scala	Mon Dec 25 01:10:55 2023 +0100
@@ -304,7 +304,7 @@
 
 }
 
-/*
+
 @main def main() = {
   import M5b._
   println(time_needed(1, run(load_bff("mandelbrot.bf"))))
@@ -312,4 +312,4 @@
   println(time_needed(1, run3(load_bff("mandelbrot.bf"))))
   println(time_needed(1, run4(load_bff("mandelbrot.bf"))))
 }
-*/
+

Binary file main_templates2/wordle.jar has changed

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Binary file main_templates4/shogun.jar has changed

Binary file main_templates5/bf.jar has changed

Binary file main_templates5/bfc.jar has changed

--- a/main_testing5/bfc_test.sh	Fri Dec 08 00:54:36 2023 +0000
+++ b/main_testing5/bfc_test.sh	Mon Dec 25 01:10:55 2023 +0100
@@ -19,7 +19,7 @@
 # functional tests
 
 function scala_assert {
-  (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala-cli -i "$1" "$2" -e "urbanmain()" 2> /dev/null 1> /dev/null)
+  (ulimit -t 30; JAVA_OPTS="-Xmx1g" scala-cli -i "$1" "$2" -e "urbanmain()")# 2> /dev/null 1> /dev/null)
 }
 
 # purity test

--- a/progs/lecture5.scala	Fri Dec 08 00:54:36 2023 +0000
+++ b/progs/lecture5.scala	Mon Dec 25 01:10:55 2023 +0100
@@ -1,6 +1,15 @@
 // Scala Lecture 5
 //=================
 
+for (n <- (1 to 10).toList) yield {
+  val add = 10
+  n + add
+}
+
+println(add)
+
+List(1,2,3,4).sum
+
 // extension methods
 // implicit conversions
 // (Immutable) OOP
@@ -11,14 +20,14 @@
 
 // Extensions or How to Pimp your Library
 //======================================
-//
+
 // For example adding your own methods to Strings:
 // Imagine you want to increment strings, like
 //
 //     "HAL".increment
 //
 // you can avoid ugly fudges, like a MyString, by
-// using implicit conversions.
+// using extensions.
 
 extension (s: String) {
   def increment = s.map(c => (c + 1).toChar)
@@ -28,6 +37,7 @@
 
 
 
+// a more relevant example
 
 import scala.concurrent.duration.{TimeUnit,SECONDS,MINUTES}
 
@@ -45,8 +55,12 @@
 5.seconds + 2.minutes   //Duration(125, SECONDS )
 
 
+// Implicit Conversions
+//=====================
+
+
+
 // Regular expressions - the power of DSLs in Scala
-//                                     and Laziness
 //==================================================
 
 abstract class Rexp
@@ -57,6 +71,8 @@
 case class SEQ(r1: Rexp, r2: Rexp) extends Rexp   // sequence     r1 . r2  
 case class STAR(r: Rexp) extends Rexp             // star         r*
 
+val r = STAR(CHAR('a'))
+
 
 // some convenience for typing in regular expressions
 import scala.language.implicitConversions    
@@ -76,7 +92,11 @@
   def ~ (s: Rexp) = SEQ(r, s)
 }
 
+val r1 = CHAR('a') | CHAR('b') | CHAR('c')
+val r2 = CHAR('a') ~  CHAR('b')
 
+val r3 : Rexp = "hello world"
+      
 
 //example regular expressions
 val digit = "0" | "1" | "2" | "3" | "4" | "5" | "6" | "7" | "8" | "9"

Binary file slides/slides05.pdf has changed

--- a/slides/slides05.tex	Fri Dec 08 00:54:36 2023 +0000
+++ b/slides/slides05.tex	Mon Dec 25 01:10:55 2023 +0100
@@ -164,7 +164,7 @@
     %Office: & N\liningnums{7.07} (North Wing, Bush House)\bigskip\\
     Slides \& Code: & KEATS\bigskip\\
 
-    Office Hour: &  Fridays 11:00 -- 12:00\\
+    Office Hour: &  Fridays 13:00 -- 14:00\\
     Location: & N7.07 (North Wing, Bush House)\bigskip\\
 
     Pollev: & \texttt{\alert{https://pollev.com/cfltutoratki576}}\\  \\
@@ -183,13 +183,13 @@
 \begin{minipage}{1.2\textwidth}
 \begin{itemize}
 \item SGTs still ongoing next week
-\item LGT next week online: Ask-Me-Anything (will be recorded, TEAMS link will be emailed and published on KEATS)
-\item tests might break over Christmas  
+%\item LGT next week online: Ask-Me-Anything (will be recorded, TEAMS link will be emailed and published on KEATS)
+%\item tests might break over Christmas  
 \end{itemize}\bigskip
 
-\begin{center}
-\raisebox{-9mm}{\includegraphics[scale=0.15]{../pics/thanks.jpeg}} Junhuai Hou \quad Chin Wan
-\end{center}  
+%\begin{center}
+%\raisebox{-9mm}{\includegraphics[scale=0.15]{../pics/thanks.jpeg}} Junhuai Hou \quad Chin Wan
+%\end{center}  
 \end{minipage}
 
 
@@ -197,14 +197,14 @@
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
-\begin{frame}[c]
-\frametitle{Main 4: \knight-Tour}
-
-\begin{center}
-\Large\bf hint
-\end{center}  
-
-\end{frame}
+%\begin{frame}[c]
+%\frametitle{Main 4: \knight-Tour}
+%
+%\begin{center}
+%\Large\bf hint
+%\end{center}  
+%
+%\end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -312,17 +312,17 @@
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%     
 
-\begin{frame}[c]
-\frametitle{Plan for Today}
+%\begin{frame}[c]
+%\frametitle{Plan for Today}
+%
+%\begin{itemize}
+%\item Polymorphic Types  
+%\item Implicits
+%\item Immutable OOP
+%%\item Making Fun about Scala
+%\end{itemize}
 
-\begin{itemize}
-\item Polymorphic Types  
-\item Implicits
-\item Immutable OOP
-%%\item Making Fun about Scala
-\end{itemize}
-
-\end{frame}
+%\end{frame}
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
 
 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%