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Sami Samhuri 2011-04-20 18:51:42 -07:00
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Readme.md
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@ -12,7 +12,7 @@ Install glib 2.x using your package manager, for me it's either `brew install gl
$ make && ./lake
That will drop you at a repl. There are booleans, symbols, integers, strings, lists, dotted lists (pairs), lambdas, and a few special forms.
That will drop you at a repl. There are booleans, symbols, integers, strings, lists, dotted lists (pairs), lambdas, special forms, and a few primitive functions.
> #t
#t
@ -30,7 +30,9 @@ That will drop you at a repl. There are booleans, symbols, integers, strings, li
(lambda () "hello")
> (define inc (lambda (x) (+ x 1)))
Hooray! It parses (reads), evaluates, and then prints things back. However there aren't any primitives yet, so no `+`, and if you try to *use* `inc` defined above it will not work. The special forms present so far are: `quote`, `define`, `set!`, `and`, `or`, and `lambda`.
Hooray! It parses (reads), evaluates, and then prints things back.
The special forms present so far are: `quote`, `define`, `set!`, `and`, `or`, and `lambda`.
> (define answer 7)
> answer
@ -42,7 +44,13 @@ Hooray! It parses (reads), evaluates, and then prints things back. However there
> (list 1 2 3 4)
(1 2 3 4)
Woah, we even managed to define a useful function without any primitives!
Woah, we even managed to define a useful function without using any primitives! There are primitives now though. So few they can be easily named. They are named thusly:
* null?
* pair?
* not
* math operations: add, subtract, multiply, and divide (+ - * /)
* numeric equals (=)
Lake still needs:
@ -52,14 +60,12 @@ Lake still needs:
* basic control flow (if, cond, when)
* native type operations:
* symbol
* integer (math)
* boolean (logic)
* string
* function
* list (cons, car, cdr, ...)
* dotted list (head, tail)
* a minimal stdlib
* sugar such as '... -> (quote ...)
I don't think I'll need any other numeric types. Similarly I don't intend to add features expected from real languages, such as exception handling, I/O, GC, etc.