The Happy Parser

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yrinfish

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The Happy Parser

« on: June 15, 2011, 10:31:31 am »

This is my happy thread

CURRENTLY REWRITING THE WHOLE THING.
Because it became a mess, and I got some new ideas to make it better. (Learn While Doing lol)

I am working on a programming language for the 83 etc, (But it is easily retargetable, so anyone who knows er, ti-nspire asm for example, could edit some strings and is ready!!)

I made it with JavaScript ~~(I have a strange relation with that language)~~

working on a C++ version, so there is an exe for the winows guys coming!!

Current Features:
-Nice name (Happy)
-Operator Precedence
-Somewhat optimized expressions (Crenshaw hates me now)
-Really platform-independent because it's made with JS
-Nothing more yet...

To show what it is currently able to do:

Spoiler For Input and Output:

Spoiler For Log::

Spoiler For Syntax:

Link to test it yourself (Please do that!!)

« Last Edit: August 20, 2011, 03:31:01 pm by yrinfish »

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Spyro543

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Re: Happy programming!!

« Reply #1 on: June 15, 2011, 10:39:31 am »

Cool

I could've never even done that

Have fun with * and /. I'm suprised those aren't in asm.

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yrinfish

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Re: Happy programming!!

« Reply #2 on: June 15, 2011, 11:08:47 am »

It is not hard (ok, sometimes it is) but it is A LOT of work (I really respect Quigibo, he made Axe YAY)

I placed a link to it, so you can test it...

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Ashbad

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Re: Happy programming!!

« Reply #3 on: June 15, 2011, 02:06:01 pm »

This is looking like it's going quite well

good luck!

However, I also notice some bugs with expression handling:

1. 5 + -(5) produces:

Code: [Select]

ld hl,5

2. many times, the expression starts with a push HL, but never pops it

that would be very dangerous over time.

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yrinfish

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Re: Happy programming!!

« Reply #4 on: June 15, 2011, 02:10:38 pm »

It doesn't support whitespace yet... And please give an example of 2?

How do I save the content of HL to a pointer?

« Last Edit: June 15, 2011, 02:19:40 pm by yrinfish »

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yrinfish

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Re: The Happy Parser

« Reply #5 on: June 17, 2011, 01:19:10 pm »

By the way, who wants a compiler tutorial? I could make one...

(without pushes and pops, I hate them (But I think I got them right now (I already said that 42 times (I already said that on irc (Or ommon(Is there any difference between those two?))))))

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yrinfish

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Re: The Happy Parser

« Reply #6 on: June 22, 2011, 03:17:27 pm »

Ok, I am working on a new version. which will be designed top-down (that means, first get the parsing large things right, then the smaller ones).
Currently this is valid:

Code: [Select]

{
    if() {
        ;
        ;
    } else {
        ;
        ;
    }
}

yup, that's right, nothing yet... To see what it actually does, type dev in the options box.
But if I would merge it with the old parser, I would have an almost working one!
However, I don't want to

, because I'm going to add support for data types and so on...

some questions:
default signed or unsigned? (or 16bit signed and 8bit unsigned)
C or am I allowed to make it more calc-specific and consistent?

I'll keep you updated via the first post and my sig.

« Last Edit: June 22, 2011, 04:49:48 pm by yrinfish »

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yrinfish

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Re: The Happy Parser

« Reply #7 on: July 19, 2011, 09:29:46 am »

Ok, because noone wanted to answer any question (Don't worry, I'm used to that

) I asked some of them on irc, and I've got a new version:

0.0.5!!!!

And it supports even more than the previous one:

Code: [Select]

{
    if !() {
        while () {
            
        }
    } else if () {
        while !() {
            
        }
    }
}

Yup, still no expression support, or anything else, but I have to start somewhere.
Happy has output too now:

Code: [Select]

	;Happy 0.0.5
#include ti83plus.inc
.org $9D93
.db t2ByteTok, tAsmCmp
	;[EXPRESSION PLACEHOLDER]
	jp nz, lbl1
lbl3:
	;[EXPRESSION PLACEHOLDER]
	jp z, lbl4
	jp lbl3
lbl4:
	jp lbl2
lbl1:
	;[EXPRESSION PLACEHOLDER]
	jp z, lbl5
lbl7:
	;[EXPRESSION PLACEHOLDER]
	jp nz, lbl8
	jp lbl7
lbl8:
lbl5:
lbl2:

Try it at my website

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Munchor

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Re: The Happy Parser

« Reply #8 on: July 24, 2011, 10:39:11 am »

I actually thought Happy was gonna be coded in C++ from now on :S Javascript has no classes which makes it quite harder.

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Ashbad

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Re: The Happy Parser

« Reply #9 on: July 24, 2011, 10:43:34 am »

Well, technically you could write a OOP language compiler in brainfuck, since it doesnt matter the language that handles it. Usually when writing a compiler for an OOP language, you won't use the OOP features of the language you're writing it in anyways, since you'll need to think of classes more as of structs than as actual abstract frameworks for instances.

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yrinfish

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Re: The Happy Parser

« Reply #10 on: July 25, 2011, 05:10:38 am »

@ephan, I will, if somebody can provide me the c++ code for my getChar, and scan routines

(or load the source into an array of char's, who can help me?)

That's what I hate about some programming languages, simple things take so long in the beginning...

BTW, I'm working on it right now (the js version)

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yrinfish

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Re: The Happy Parser

« Reply #11 on: August 24, 2011, 04:28:09 am »

Project update: working on return values, so you can have a function that retuns a 8-bit number in A and a different function return a 16-bit number in HL.

BTW: IN C++, so finally a 'real' compiler!

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