'use strict';
exports.extend = require('extend-shallow');
exports.SourceMap = require('source-map');
exports.sourceMapResolve = require('source-map-resolve');
exports.unixify = function(fp) {
return fp.split(/\\+/).join('/');
};
exports.isString = function(str) {
return str && typeof str === 'string';
};
exports.arrayify = function(val) {
if (typeof val === 'string') return [val];
return val ? (Array.isArray(val) ? val : [val]) : [];
};
exports.last = function(arr, n) {
return arr[arr.length - (n || 1)];
};