fsm-vir

The simple state machine runner. Can be used to quickly create Mealy or Moore finite state machines.

Install

``sh
npm i fsm-vir
`

Usage

Full type docs are here: https://electrovir.github.io/fsm-vir
Here's an example usage:

`TypeScript
import {runFsm} from 'fsm-vir';

runFsm({
/* The initial state of the state machine. /
initState: 'start',
/* Any iterable of values to process. /
inputs: [
'a',
'b',
'c',
'd',
'e',
],
/* Calculate the next state for the current input. /
nextState({input}) {
if (input === 'b') {
return {
/* Return nextState to update the current state to a new value. /
nextState: 'next',
};
} else if (input === 'd') {
return {
/* Return stop: true to halt input processing and the state machine as a whole. /
stop: true,
};
} else {
/* Return undefined to not perform any state updates. /
return undefined;
}
},
/* Optionally perform actions for each processed input. /
actions: {
preNextState({input, state}) {
/* Do some action here before the next state is calculated. /
},
postNextState({input, state}) {
/* Do some action here after the next state is calculated. /
},
},
});
``