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TùxCräftîñg
TùxCräftîñg
08:37
Hello
 
2 hours later…
TùxCräftîñg
TùxCräftîñg
11:02
in The Nineteenth Byte, 6 secs ago, by TùxCräftîñg
i added docs to Logy
betseg
betseg
11:56
\o/
 
2 hours later…
quartata
quartata
14:00
r[x,y]->r[x-1,y*x];
r[1,y]->y;
p[x]->r[x-1,1]%x+1==0;
@TùxCräftîñg cant test on mobile
TùxCräftîñg
TùxCräftîñg
arguments must start with a uppercase letter
quartata
quartata
OK
TùxCräftîñg
TùxCräftîñg
and pattern matching take & at the start (so here it's r[&1,Y])
i forget to add it to the docs
quartata
quartata
Why?
TùxCräftîñg
TùxCräftîñg
stupid parser
wait i just realised
modulo is % but it's also comments >_<
quartata
quartata
14:03
Do you have atoms? Is that why variables are uppercase
TùxCräftîñg
TùxCräftîñg
atoms?
quartata
quartata
Kind of like symbols
TùxCräftîñg
TùxCräftîñg
no it dont have atoms
quartata
quartata
In Erlang atoms are lowercase (ok) and variables are uppercase (Var)
Then why the uppercase
TùxCräftîñg
TùxCräftîñg
ok your primality checker discovered a lot of bugs in the interpreter
quartata
quartata
14:05
excellent
TùxCräftîñg
TùxCräftîñg
in Logy rule names start with lowercase and variables/constants/arguments start with uppercase
wtf adding a main function make it crash with Unknown rule 'p' and removing it make it crash with a undefined method 'drop' for nil:NilClass (NoMethodError)
quartata
quartata
Source?
TùxCräftîñg
TùxCräftîñg
github.com/tuxcrafting/logy
wait the nil error is because it dont have the main method, so the interpreter try to call nil ._. 
D:/Logy/interpreter/interpreter.rb:86:in `get_rule': Unknown rule 'puts' (Logy::Error::UnknownRule)
totally not borked lol
 
2 hours later…
quartata
quartata
15:53
@TùxCräftîñg Rules and facts are causing problems: 
wrapper -> f[X] -> X;
Parse error: expected ";" but got "->" on line 1.
It's expecting a fact
TùxCräftîñg
TùxCräftîñg
> Rules/constants must be loaded from a file ('include["file"];')
in the welcome message of the REPL
quartata
quartata
Oh, well that's lame
It doesn't really like recursion
/home/quartata/logy/parser/visitor.rb:8: stack level too deep (SystemStackError) for r[4, 1];
TùxCräftîñg
TùxCräftîñg
the interpreter recurse in the entire ast
quartata
quartata
That's kind of a problem. Why don't you just traverse it iteratively
use a while loop and an agenda
TùxCräftîñg
TùxCräftîñg
mainly lazyness
quartata
quartata
16:05
I don't see why lazy eval would be a problem?
TùxCräftîñg
TùxCräftîñg
no, programmer lazyness :P
quartata
quartata
Oh.
Well it isn't very useful if I can't recurse 4 levels :P
TùxCräftîñg
TùxCräftîñg
i want to compile it but pattern matching is a pain to compile 
wrapper -> -begin
        >> f[X]->X/2;
        >> -end
wrapper -> f[3.14];
> 1.57
pushing it
quartata
quartata
16:29
@TùxCräftîñg Found an environmental variable to increase ruby's stack size
TùxCräftîñg
TùxCräftîñg
what var?
but anyway even making the stack unbounded would make logy crash on recursion on complex code :/
 
6 hours later…
quartata
quartata
22:41
@TùxCräftîñg Even with the stack size increased this seems to be running infinitely until it overflows: 
r[X,Y]->r[X-1,Y*X];
r[&1,Y]->Y;
What did I do wrong

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