examples/presentation.mal

   1 ;; Mal Presentation
   2
   3 (def! clear
   4   (fn* ()
   5     (str "\e[2J\e[;H")))
   6
   7 (def! bold
   8   (fn* (s)
   9     (str "\e[1m" s "\e[0m")))
  10
  11 (def! blue
  12   (fn* (s)
  13     (str "\e[1;34m" s "\e[0m")))
  14
  15 (def! title
  16   (fn* (s)
  17     (bold (blue (str s "\n")))))
  18
  19 (def! title2
  20   (fn* (s)
  21     (bold (blue s))))
  22
  23
  24 (def! slides
  25   (list
  26    (list
  27     (title2 " __  __    _    _")
  28     (title2 "|  \/  |  / \  | |")
  29     (title2 "| |\/| | / _ \ | | ")
  30     (title2 "| |  | |/ ___ \| |___ ")
  31     (title2 "|_|  |_/_/   \_\_____|"))
  32    (list
  33     (title "gherkin")
  34     "- a lisp1 written in bash4")
  35    (list
  36     (title "mal - an interpreter for a subset of Clojure"))
  37    (list
  38     (title "mal - an interpreter for a subset of Clojure")
  39     "- written in GNU make")
  40    (list
  41     (title "mal - an interpreter for a subset of Clojure")
  42     "- written in GNU make"
  43     "- and Bash 4")
  44    (list
  45     (title "mal - an interpreter for a subset of Clojure")
  46     "- written in GNU make"
  47     "- and Bash 4"
  48     "- and Javascript")
  49    (list
  50     (title "mal - an interpreter for a subset of Clojure")
  51     "- written in GNU make"
  52     "- and Bash 4"
  53     "- and Javascript"
  54     "- and Python")
  55    (list
  56     (title "mal - an interpreter for a subset of Clojure")
  57     "- written in GNU make"
  58     "- and Bash 4"
  59     "- and Javascript"
  60     "- and Python"
  61     "- and Clojure")
  62    (list
  63     (title "mal - an interpreter for a subset of Clojure")
  64     "- written in GNU make"
  65     "- and Bash 4"
  66     "- and Javascript"
  67     "- and Python"
  68     "- and Clojure"
  69     "- and 17 other languages")
  70    (list
  71     (title "things it has")
  72     "- scalars: integers, strings, symbols, keywords, nil, true, false"
  73     "- immutable collections: lists, vectors, hash-maps"
  74     "- metadata, atoms"
  75     "- def!, fn*, let*"
  76     "  - varargs: (fn* (x y & more) ...)"
  77     "- tail call optimization"
  78     "  -  except GNU make implementation (no iteration)"
  79     "- macros (quote, unquote, quasiquote, splice-quote)"
  80     "- over 500 unit tests"
  81     "- REPL with line editing (GNU readline/libedit/linenoise)")
  82    (list
  83     (title "things it does not have")
  84     "- performance"
  85     "- namespaces"
  86     "- GC (in bash, make, C implementations)"
  87     "- protocols :-("
  88     "- lots of other things")
  89    (list
  90     (title "why?")
  91     "- because!")
  92    (list
  93     (title "why?")
  94     "- because!"
  95     "- gherkin was an inspiration to higher levels of crazy"
  96     "- evolved into learning tool"
  97     "- way to learn about Lisp and also the target language"
  98     "- each implementation broken into small 11 steps")
  99    (list
 100     (title "thanks to:")
 101     "- Peter Norvig: inspiration: lispy"
 102     "  - http://norvig.com/lispy.html"
 103     "- Alan Dipert: gherkin, original gherkin slides"
 104     "  - https://github.com/alandipert/gherkin")
 105    (list
 106     (title "mal - Make a Lisp")
 107     "https://github.com/kanaka/mal")
 108    (list
 109     (title "demo"))))
 110
 111 (def! present
 112   (fn* (slides)
 113     (if (> (count slides) 0)
 114       (do
 115         (println (clear))
 116
 117         (apply println (map (fn* (line) (str "\n        " line)) (first slides)))
 118         (println "\n\n\n")
 119         (readline "")
 120         (present (rest slides))))))
 121
 122 (present slides)