Brainfuck

Requirements

• PHP: 7.4+
• Composer: 1.10+

Install

• Download
• Run composer install --no-dev or composer install if you want to run CI tools
• Could also be used as dependency if needed

Brainfuck syntax

• + add 1 to the current register
• - substract 1 from the current register
• > move to the next register
• < move to the prev register
• . write current register value to output
• , read current register value from output
• [ go into code if current value is not 0
• ] go to matching opening bracket if current value is not 0

Usage

• Write the brainfuck code Be creative or google for examples

$code = '...';

• Create the config

$config = new berbeflo\Brainfuck\Config();

• Create the interpreter and run it

$interpreter = new berbeflo\Brainfuck\Interpreter($code, $config);
$interpreter->execute();

The interpreter can be executed multiple times. It's also possible to change the values of the Config object between the executions. But not the code. For different code, create a different Interpreter instance.

Config options

• setInputObject define the object that provides the input values; has to implement berbeflo\Brainfuck\Definition\Input
• setOutputObject define the object that provides the output values; has to implement berbeflo\Brainfuck\Definition\Output
• setMinRegisterValue the default min value is 0
• setMaxRegisterValue the default max value is 255
• setMinPointerValue the minimum register address; default is 0
• setMaxPointerValue the maximum register address; default is 255
• setMaximumIterations prevent endless loops; default is 255
• setWrapOnRegisterOverflow defaults to false
• setWrapOnPointerOverflow defaults to false
• setAllowUnknownTokens defaults to true