--- /dev/null
+'use strict';
+
+var path = require('path');
+var isglob = require('is-glob');
+var pathDirname = require('path-dirname');
+var isWin32 = require('os').platform() === 'win32';
+
+module.exports = function globParent(str) {
+ // flip windows path separators
+ if (isWin32 && str.indexOf('/') < 0) str = str.split('\\').join('/');
+
+ // special case for strings ending in enclosure containing path separator
+ if (/[\{\[].*[\/]*.*[\}\]]$/.test(str)) str += '/';
+
+ // preserves full path in case of trailing path separator
+ str += 'a';
+
+ // remove path parts that are globby
+ do {str = pathDirname.posix(str)}
+ while (isglob(str) || /(^|[^\\])([\{\[]|\([^\)]+$)/.test(str));
+
+ // remove escape chars and return result
+ return str.replace(/\\([\*\?\|\[\]\(\)\{\}])/g, '$1');
+};