Programming Thread

This thread is about /prog/ramming for /prog/rammers and /DPT/ers

What are you working on?

I'm working on my microkernel using the OSDEV tutorials

                   1111111111111111111
                111111111111111111111111
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              1111    11111111111111111111
              111      11111111111111111111
              1111    111111111111111111111
              11111111111111111111111111111
              11111111111111111111111111111
                            111111111111111
                            111111111111111
  11111111111111111111111111111111111111111 ***********
 111111111111111111111111111111111111111111 ************
1111111111111111111111111111111111111111111 *************
1111111111111111111111111111111111111111111 *************
1111111111111111111111111111111111111111111 *************
111111111111111111111111111111111111111111  *************
11111111111111111111111111111111111111111  **************
111111111111111111111111111111111111111   ***************
111111111111111111                      *****************
1111111111111111   **************************************
11111111111111  *****************************************
1111111111111  ******************************************
1111111111111 *******************************************
111111111111  *******************************************
111111111111  *******************************************
111111111111  *****************************************
 11111111111  *****************************************
    11111111  ***************************************
              **************
              *****************************
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              *********************   *****
              ********************     ****
              ********************     ****
               ********************   *****
                *************************
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I'm tinkering my stack-based reverse polish notation calculator written in Scheme. It has a nice interface for hard-coding in new functions quickly, but I can't find a good way to store session-specific functions. I have a built in variable assignment system though.

Example session:
[RPN]>> 10
(10)
[RPN]>> 20
(20 10)
[RPN]>> 30
(30 20 10)
[RPN]>> + +
(60)
[RPN]>> 10 +
(70)
[RPN]>> p
()
[RPN]>> 10 bind:a
(10)
[RPN]>> a 10 +
(20)
[RPN]>> QUIT

>>4
I had written a stack based reverse polish language in C once

But I think that in languages like that is very easy to fuck everything up

lel who even uses these shitty textboards

>>6
All the cool kids. Too bad moot had to ruin them.

>>6
I want an inline thread updating extension and I'm ok with it

>>5
I'm doing it in scheme right now (partially to learn scheme), it was fun but I don't really have much to do now.

>>8
I also want a post report capability

>>10
I also want a dubs checker.

>>9
I would be funny if you could call scheme functions from this

>>12
*it

I heard that Bjarne Stroustrup summon the devil to make the first C++ parser

Is that true?

>>12
That's exactly what I do, actually. I just pick the numbers on the stack and run the command on them, then put the result of that function call onto the stack.
Of course, it assumes you use numbers so things like string manipulation aren't possible (to be fair, putting something like that in a calculator would be bloat).

For example, this is a big list of functions that I put in the code.

(define functions
  (list
    (list "pi"    3.14159265359        0)
    (list "e"     2.71828182845        0)
    (list "id"    identity             1)
    (list "add1"  add1                 1)
    (list "sub1"  sub1                 1)
    (list "abs"   abs                  1)
    (list "cos"   cos                  1)
    (list "sin"   sin                  1)
    (list "tan"   tan                  1)
    (list "nl"    log                  1)
    (list "phi"   phi                  1)
    (list "sqrt"  sqrt                 1)
    (list "round" int-round            1)
    (list "+"     +                    2)
    (list "*"     *                    2)
    (list "/"     /                    2)
    (list "-"     -                    2)
    (list "**"    expt                 2)
    (list "ack"   ack                  2)
    (list "mod"   modulo               2)
    (list "gcd"   gcd                  2)
    (list "log"   log-b                2)))

The first member of every list is the string which is matched to the command run by the user. The second item of the list is either a value or a symbol which is assigned to a function (incidentally, you can use lambda expressions here, so add1 could be (lambda (x) (+ 1 x)) instead).

Adding a member to the list is the same as adding a new function, so if I wanted an add3 command, I could just add

(list "add3" (lambda (x) (+ 3 x) 1)
to the list and it'll work.

The third argument is the number of arguments needed for the function. So you can't do:
10 10 10 +
and expect to get thirty. A "function" with 0 arguments just puts the number onto the stack (useful for things like pi or e).

>>15
Nice!
Can you post source please?

>>16
Sure, but don't expect anything good. It's one of my first projects.
https://clbin.com/uXKPi
Feel free to do anything with it.

>>17
Thank you for sharing this!

>>18
No problem. To be honest I'm sort of flattered, this is the first time someone's expressed interest in my code.

>>19
:3

Just found that parsing XML is technically faster to parse than JSON

So we have: SExpr > XML > JSON

First for cute traps

Opinions about Tcl?

`
>using harmful programming languages
>2013

I'm thinking about killing myself.

>>25
Just do it faggot

I got 3 dubs on /g/ in less than 20 minutes

I posted total 7 posts

>>27
that's quite the feat

today must be your lucky day

>>28
One time I responded to a thread on /g/ and got quads without even trying.

It derailed the entire thread. Poor OP.

>>29
/g/ is the most epic place, man

xD

xDD

The sweet smell of dubs

<--- check 'em

>>30
You haven't seen real autism until you go to /jp/. Most of /g/ is pretty tame, except for the DPTs, which have become a hotspot for shitposting and language fanaticism.

>>34
I can say that the most people at /DPT/ are autists!

>>35
Concentrated autism

Very Concentrated autism

>>29
you know, that thread you responded to probably rubbed someone's autism the wrong way and they used your GET to derail it

dubs/quads/etc have become a destructive weapon against shitty threads on the imageboards

against shitty threads
Do you mean against threads whitch people don't like?

>>38
Not always. You see that more on /v/. Last I was there I saw someone doing it to a "gamer food" thread.