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						- module.exports = isexe
 - isexe.sync = sync
 - 
 - var fs = require('fs')
 - 
 - function checkPathExt (path, options) {
 -   var pathext = options.pathExt !== undefined ?
 -     options.pathExt : process.env.PATHEXT
 - 
 -   if (!pathext) {
 -     return true
 -   }
 - 
 -   pathext = pathext.split(';')
 -   if (pathext.indexOf('') !== -1) {
 -     return true
 -   }
 -   for (var i = 0; i < pathext.length; i++) {
 -     var p = pathext[i].toLowerCase()
 -     if (p && path.substr(-p.length).toLowerCase() === p) {
 -       return true
 -     }
 -   }
 -   return false
 - }
 - 
 - function checkStat (stat, path, options) {
 -   if (!stat.isSymbolicLink() && !stat.isFile()) {
 -     return false
 -   }
 -   return checkPathExt(path, options)
 - }
 - 
 - function isexe (path, options, cb) {
 -   fs.stat(path, function (er, stat) {
 -     cb(er, er ? false : checkStat(stat, path, options))
 -   })
 - }
 - 
 - function sync (path, options) {
 -   return checkStat(fs.statSync(path), path, options)
 - }
 
 
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