A simple brainfuck interpreter written in Kotlin.
The interpreter can interpret any valid brainfuck program.
It will parse the symbols >, <, +, -, ., ,, [, ] as their corresponding instruction and other symbols as NOP statements that will be ignored during the execution.
Additionally, there is the # symbol, which will be interpreted as debug instruction.
Once such a symbol is encountered, the interpreter will dump the current pointer position, cell value and print all tape values within the ASCII range as string.
The basic usage using the Gradle build system is
gradle run --args="-f[ <file path>]+ [-i[ <input>]+]"
You can provide a list of file paths to be executed by passing them under the -f or --file argument and provide optional inputs via -i or --input.
Each of the parameters, i.e. filepath or input, should be whitespace separated.
It has become some sort of tradition, that we hide birthday gifts in some fun challenges. One I received included a brainfuck program that upon execution decrypted some password. Thus, I had to dump the state of the tape to retrieve said password and therefore I wrote this interpreter.