k4m4/lexis

#!/usr/bin/env node
'use strict';
const meow       = require('meow');
const getStdin   = require('get-stdin');
const lexisCount = require('lexis-count');

const cli = meow(`
    Usage
      ~ ❯❯❯ lexis <text>
      ~ ❯❯❯ cat <file> | lexis
      ~ ❯❯❯ echo <text> | lexis
    Example
      ~ ❯❯❯ lexis 'Lorem ipsum dolor sit amet'
      5
`);

const input = cli.input[0];

if (!input && process.stdin.isTTY) {
    console.log('Specify something to retrieve the number of words it contains');
    process.exit(1);
}

if (input) {
    console.log(lexisCount(input));
} else {
    getStdin().then(stdin => {
        console.log(lexisCount(stdin));
    });
}