--- a/LINKS	Tue Nov 06 08:18:53 2018 +0000
+++ b/LINKS	Mon Nov 12 11:33:51 2018 +0000
@@ -1,3 +1,7 @@
+Thinking Forth (Book to read)
+=================
+
+
 Compiler courses
 http://www.cse.chalmers.se/edu/year/2017/course/TDA283/lectures/
 http://www.cs.columbia.edu/~sedwards/classes/2017/4115-fall/index.html

Binary file coursework/cw02.pdf has changed

Binary file coursework/cw03.pdf has changed

--- a/progs/comb1.scala	Tue Nov 06 08:18:53 2018 +0000
+++ b/progs/comb1.scala	Mon Nov 12 11:33:51 2018 +0000
@@ -99,7 +99,15 @@
 lazy val F: Parser[String, Int] = 
   ("(" ~ E ~ ")") ==> { case ((x, y), z) => y } | NumParserInt
 
+lazy val E: Parser[String, String] = 
+  (T ~ "+" ~ E) ==> { case ((x, y), z) => "(" + x + ")+(" + z + ")"} | T 
+lazy val T: Parser[String, String] = 
+  (F ~ "*" ~ T) ==> { case ((x, y), z) => "(" + x + ")*("+ z + ")"} | F
+lazy val F: Parser[String, String] = 
+  ("(" ~ E ~ ")") ==> { case ((x, y), z) => y } | NumParser
 
+println(E.parse_all("1+3+4"))
+println(E.parse("1+3+4"))
 println(E.parse_all("4*2+3"))
 println(E.parse_all("4*(2+3)"))
 println(E.parse_all("(4)*((2+3))"))
@@ -126,12 +134,12 @@
 lazy val S : Parser[String, String] =
   ("1" ~ S ~ S) ==> { case ((x, y), z) => x + y + z } | ""
 
-S.parse("1" * 15)
+S.parse("1" * 17)
 
 lazy val U : Parser[String, String] =
   ("1" ~ U) ==> { case (x, y) => x + y  } | ""
 
-U.parse("1" * 15)
+U.parse("1" * 25)
 
 U.parse("11")
 U.parse("11111")

Binary file slides/slides06.pdf has changed

--- a/slides/slides06.tex	Tue Nov 06 08:18:53 2018 +0000
+++ b/slides/slides06.tex	Mon Nov 12 11:33:51 2018 +0000
@@ -29,7 +29,7 @@
   \begin{tabular}{ll}
   Email:  & christian.urban at kcl.ac.uk\\
   Office: & N\liningnums{7.07} (North Wing, Bush House)\\
-  Slides: & KEATS (also home work is there)\\
+  Slides: & KEATS (also homework is there)\\
   \end{tabular}
   \end{center}