I've been writing a Forth Interpreter over the past weeks as a way to learn Rust. It's very motivating how quickly a working prototype can be whipped up; once the data structures are worked out it's basically done. There's a quiet beauty and elegance to Forth code that I can't really find anywhere else. At the same time, it's often frustratingly crufty.
A Little Bit of Forth [video]
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Re: A Little Bit of Forth [video]
#12Learning Forth from the OLPC XO boot prompt is one of the most fun things I have done with a computer. Great tutorial here: http://wiki.laptop.org/go/Forth_Lessons
Re: A Little Bit of Forth [video]
#13I have a soft spot for stack-based languages. Anyone played around with Factor?
I used Factor quite a bit in the early days. It's a great language and exploratory programming environment.
Re: A Little Bit of Forth [video]
#14It would be so sweet if the "(" and ")" were defined as push/pop from a secondary stack. So "(+ 1 2)" would always be equal to "1 2 +".
: ABS (IF (< DUP 0)) (THEN (- 0 SWAP)) ;
Re: A Little Bit of Forth [video]
#15And for stack lovers :
- http://csclub.uwaterloo.ca/media/Eric%20LaForest:%20Next%20G...
Re: A Little Bit of Forth [video]
#16I created a FORTH like language some years ago. Also fun.
/home/user/st> more fibonacci
1#[." "#@@+#a-;]10,
/home/user/st> st fibonacci 45
1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597 2584 4181 6765 10946 17711 28657 46368 75025 121393 196418 317811 514229 832040 1346269 2178309 3524578 5702887 9227465 14930352 24157817 39088169 63245986 102334155 165580141 267914296 433494437 701408733 1134903170
/home/user/st>
Re: A Little Bit of Forth [video]
#17FORTH is a very old and unique language. Different from all the others. You can find it even in the space-ships.
Re: A Little Bit of Forth [video]
#18If you want to play with an online FORTH interpreter:
http://forthfreak.net/jsforth80x25.html
ok ok
1 1 2 3 5 8 13 21 34 55 89 144 233 377 610 987 1597 2584 4181 6765 10946 17711 2 8657 46368 75025 121393 196418 317811 514229 832040 1346269 2178309 3524578 5702 887 9227465 14930352 24157817 39088169 63245986 102334155 165580141 267914296 43 3494437 701408733 1134903170 ok..
The Fibonacci numbers :-)
Re: A Little Bit of Forth [video]
#19I still write some Forth occasionally, it's really awesome for embedded systems, as it runs on little MCUs like AVR. It's so cool to update the program without reflashing the MCU, and have potentially have an interactive interpreter on such low resource processors. I think becoming proficient with Forth has also made me a better programmer in other languages; for example stack based iterative replacements for recursi…
Some people compare FORTH with game GO or philosophy ZEN. Very simple rules. And you build an own universe. And all of this fits into a very small size. As you also mentioned.
Re: A Little Bit of Forth [video]
#20Learning Forth from the OLPC XO boot prompt is one of the most fun things I have done with a computer. Great tutorial here: http://wiki.laptop.org/go/Forth_Lessons