gistfile1.txt

var async = require('async');

exports.callPolygen = callPolygen;
function callPolygen(grm, callback) {
    async.waterfall([
        function find(next) {
            findGrm(grm, next);
        },
        function exec(path, next) {
            execPolygen(path, next);
        },
        function parse(data, next) {
            parsePolygen(data, callback);
        }
    ], function error(err) {
        callback(err);
    });
}

function findGrm(grm, callback) {
    exec('find . -iname \''+grm+'\.grm\' -type f' ,
        function (err, stdout, stderr) {
            var path = stdout.replace(/^\s+|\s+$/g,'').split("\n")[0];
            callback(err, path);
        }
    );
}
function execPolygen(path, callback) {
    exec('bin/polygen ' + path,
        function (error,stdout,stderr){
            callback(error, stdout);
        }
    );
}
function parsePolygen(data, callback) {
    var parsed = HTMLparser.htmlToText(data);
    callback(null, parsed);
}