+ Follow

Learning Lisp

by Alf Kristian Støyle

Video of presentation available on youtube:

Video of presentation available on youtube:
http://www.youtube.com/watch?v=y9RekASi2MI

File a copyright complaint

https://lti-examples.heroku.com

\n
\n
\n
\n
\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
Cambridge polish notation\n
\n
\n
\n
\n
\n
Parens are actually literals for lists.\nData and code has the same representation.\n
Parens are actually literals for lists.\nData and code has the same representation.\n
Compile time metaprogrammering - ingen performance overhead\nMan bruker vanlige funksjoner til å manipulere kode, på samme måte som data\n\n\n\n
Compile time metaprogrammering - ingen performance overhead\nMan bruker vanlige funksjoner til å manipulere kode, på samme måte som data\n\n\n\n
Compile time metaprogrammering - ingen performance overhead\nMan bruker vanlige funksjoner til å manipulere kode, på samme måte som data\n\n\n\n
\n
\n
\n

Learning Lisp Alf Kristian Støyle
sum(1, 2);
sum(1, 2)
(sum 1, 2)
(sum 1 2)
(sum 1 2)
(sum 1 2)
Preﬁx notationFunction name Parameters (sum 1 2)
(sum 1 2)
(sum)(sum 1 2)(sum 1 2 3)
(sum);=> 0(sum 1 2);=> 3(sum 1 2 3);=> 6
(+);=> 0(+ 1 2);=> 3(+ 1 2 3);=> 6
(+);=> 0(+ 1 2) 1 + 2;=> 3(+ 1 2 3) 1 + 2 + 3;=> 6
Lists(3 2 1);=> (3 2 1)(+ 3 2 1);=> 6
Lists(3 2 1);=> (3 2 1)(+ 3 2 1);=> 6(defn iterate [f x] (cons x (lazy-seq (iterate f (f x)))))
Lists(3 2 1);=> (3 2 1)(+ 3 2 1);=> 6(defn iterate [f x] (cons x (lazy-seq (iterate f (f x)))))
Macros(1 + 2)
Macros(infix (1 + 2));=> 3
Macros(infix (1 + 2));=> 3(defmacro infix [form] `(~(second form) ~(first form) ~@(nnext form)))
Macros(infix (1 + 2));=> 3(defmacro infix [form] `(~(second form) ~(first form) ~@(nnext form)))(macroexpand (infix (1 + 2)));=> (+ 1 2)
(defn iterate [f x] (cons x (lazy-seq (iterate f (f x)))))
Abstract syntax tree(defn iterate [f x] (cons x (lazy-seq (iterate f (f x)))))
Clojure