NodeJS Brainfuck and Brainfuck ♭ console interpreter
- NodeJS
npm i -g bfrun
| Command | Properties | Description |
|---|---|---|
| start <file> | --verbose | Runs brainfuck file |
| debug <file> | --verbose | Debug brainfuck project, add * to add a debug breakpoint |
| test <spec file> <to eval file> | Unit test a brainfuck file with brainfuck, compare the memory result | |
| help | Help from the CLI |
BFF is a Brainfuck derivative inspired by Brainfuck++, it expands standard Brainfuck in two ways:
- Having two different memory arrays
a. Theregisterarray has a fixed 16 cells
b. The standardmemoryhas a dynamic length, it doubles everytime the memory pointer moves past its length - Adds this commands:
| Command | Specification |
|---|---|
| ^ | Swaps between memory strip and registers strip. |
| # | Reads filename until a null byte is reached, input buffer will now be said file, pointer returns to original cell. If file doesn't exists the program will exit. |
| : | Reads filename until a null byte is reached, dumps all non-zero memory except filename in said file. If file doesn't exists the program will exit. |
| :: | Reads filename until a null byte is reached, writes file with no content, if a file already existis it will replace it. |
Now you can unit test a brainfuck file with another brainfuck file!
To use it first create a new brainfuck file, preferably name it like the file you want to test with a _spec after the name and with extension .bf.
Inside the file start with the input to test and finish the input with a !, everything before the exclamation mark will be read as input for the evaluated BF.
Insert in memory the final memory dump you expect on the evaluated file. Example: This an example of addition of a + 2 sum_spec.bf
3!
++++++++++++++++++++++++++++++++++++++++++++++++++++sum.bf
,>++[<+>-]Then run the command bfrun test sum_spec.bf sum.bf
(If you want header comments on your spec file add it after the exclamation mark)