@post-machine-js/machine v1.0.0

@post-machine-js/machine

Some basic objects to build your own post machine

Install

Using npm:

npm install @post-machine-js/machine

or using yarn:

yarn add @post-machine-js/machine

Classes

The following classes are exported from the library.

PostMachine

Tape

This class is reexported from the @turing-machine-js/machine library.

Constants

The following constants are exported from the library.

• alphabet - the alphabet for the machine tapes. An Alphabet class instance implemented in @turing-machine-js/machine library.
• blankSymbol - the blank symbol, (space)
• markSymbol - the mark symbol, *

Commands

The following commands are exported from the library.

Common commands

• check(ix1,ix0) - if current tape section marked go to ix1th instruction or go to ix0th instruction otherwise
• erase/erase(ix) - put the blank symbol into current tape section and go to the next/ixth instruction
• left/left(ix) - move the carriage to the left and go to the next/ixth instruction
• mark/mark(ix) - put the mark symbol into current tape section and go to the next/ixth instruction
• right/right(ix) - move the carriage to the right and go to the next/ixth instruction
• stop - stop the machine

Additional commands

• call(subroutineName)/call(subroutineName,ix) - execute a subroutine by subroutineName name and go to the next/ixth instruction
• noop/noop(ix) - do nothing and go to the next/ixth instruction

Links

• Post–Turing machine on the Wikipedia