LTMCBCBYCII
Esolang, created by User:R3D in July 2021.
Full name is Language That May Cause Brain Cancer But You Can Ignore It, the shortest one is BCL.
Heavily inspired by INTERCAL.
The name was chosen by /dev/null, his discord is sas24#9133.
Extensions: .bcl.
Basics of BCL
Every line should start with DO
Labels and variables can be only numbers
Valid symbols are only aA-zZ, 0-9, and ^%$.
Variables
There are only 2 variable type: shelf and box (array/string and integer)
To make shelf, use:
DO MATERIALIZE $shelfid ^shelfsize
To set shelf index, use:
DO $shelfid ^1-based index: number or shelfsection or box
To use it:
$shelfid
Or get shelf element:
$shelfid ^1-based index
To make box, use:
DO MATERIALIZE %boxid
To set box, use:
DO %boxid: number or shelfsection or box
To use it:
%boxid
There are some built-in variables:
| ID | Type | Description |
|---|---|---|
1000
|
box | Return 0 always, ignores all set commands |
1001
|
box | Command pointer of the program |
1002
|
box | Returns randomly 0 or 1 |
1100
|
box | Returns its value + 1 |
1101
|
box | Returns its value - 1 |
Also, variables from -1 to -64 used as arguments and to store return value. (-1 to -32 is shelfs, -33 to -64 is boxes)
I/O functionality
Currently, you can only read/write from files or console.
Writing:
DO WRITE "filename, or <sout> for console" $SHELFID or %BOXID
Reading:
DO READ "filename, or <sin> for console" $SHELFID or %BOXID
Also, DO WRITE "<sout>" "Hello World!\n" is considered as valid command and executes as expected. But, oficially, this is a interpreter bug and will be fixed in next release.
Acquiring
DO ACQUIRE "lib.std" is a command, that will import ./lib/std.py and will use subroutines from it later
Flying, flapping, and coming from
DO FLY TO 1 flies (goto) to label 1.
DO FLAP TO 1 flaps (subroutine) to label 1. To return, use DO BACKFLIP
DO COME FROM 1 comes from (reversed goto) from label 1.
(1) DO SOMETHING creates label 1 at this line.
All of this can use not only numbers, but shelfs and boxes.
Comments
Comments are created by starting line with DO NOT, like in INTERCAL.
So, you can do DO NOT FLAP TO 1, or, DO NOTE THAT THIS LANGUAGE IS SHIT.
Shelf copying
You can copy chelf contents using DO COPY $1 $2.
It will take all $2 elements and paste it in $1. If $1 was bigger, it will overwrite only $2 length items.
std library
lib.std contains only 5 flaproutines:
- 1000: prints shelf -1
- 1001: sums -33 and -34 and stores it in -35
- 1002: subs -33 and -34 and stores it in -35
- 1003: muls -33 and -34 and stores it in -35
- 1003: divs -33 and -34 and stores it in -35
Flow control
In BCL, there are no straight IF, FOR and WHILE, same as INTERCAL. But, it has no abstain or reinstain commands.
There are fly + math comes into the game.
For example, this code flies to 1 if %1 is not zero, or to 2 if zero.
DO MATERIALIZE %10
DO %10: %1
DO %1100: %10
DO %10: %1100
DO %-33: 1
DO %-34: %10
DO FLAP TO 1004
DO %-33: 1
DO %-34: %-35
DO FLAP TO 1001
DO %10: %-35
DO FLY TO %10
It uses lib.std and formula 1/(x + 1) to get the result. There is no floats, so it works perfectly.
Hello World
DO ACQUIRE "lib.std"
DO MATERIALIZE $1 ^12
DO $1 ^1: 72
DO $1 ^2: 101
DO $1 ^3: 108
DO $1 ^4: 108
DO $1 ^5: 111
DO $1 ^6: 32
DO $1 ^7: 87
DO $1 ^8: 111
DO $1 ^9: 114
DO $1 ^10: 108
DO $1 ^11: 100
DO $1 ^12: 33
DO WRITE "<sout>" $1
Let's take a look.
DO ACQUIRE "lib.std" imports standard library (not used in current example)
DO MATERIALIZE $1 ^12 creates shelf with id 1 and height 12
DO $1 ^N: LC sets section N of shelf 1 to ASCII character code LC
DO WRITE "<sout>" $1 writes shelf 1 as string
Interpreter
Currently only Python implementation available for my language.
To use it, do:
$ python3 main.py <filename> [dbg]
Turing completness
I'm not sure, if this is turing complete, but i will maybe prove it later, by writing BF interpreter in it.