binary-preproc.js

#! /usr/bin/env node
// Very simple c/++ preprocessor for replacing binary(0b10101) with the hexer decimal representation
var fs = require('fs');

process.argv = process.argv.slice(2, process.argv.length);
console.log('Arguments:', process.argv);

process.argv.forEach(function(val, index, array){
    if(val.match(/[a-zA-Z._-]*/)) {
        process.nextTick(function (){
            fs.readFile(val, function (err, data){
                if (err) throw err;
                var data = data.toString().replace(/0b([01]*)/g, function (match, capture){
                    var replace = parseInt(capture, 2).toString(16);
                    return '0x' + parseInt(capture, 2).toString(16);
                });
                console.log('New data:', data);
                fs.writeFile(val, data, function(err){
                    if(err) throw err;
                    console.log('data written');
                });
            });
        });
    }
});