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+
+/**
+ * Module dependencies.
+ */
+
+var sep = require('path').sep || '/';
+
+/**
+ * Module exports.
+ */
+
+module.exports = fileUriToPath;
+
+/**
+ * File URI to Path function.
+ *
+ * @param {String} uri
+ * @return {String} path
+ * @api public
+ */
+
+function fileUriToPath (uri) {
+ if ('string' != typeof uri ||
+ uri.length <= 7 ||
+ 'file://' != uri.substring(0, 7)) {
+ throw new TypeError('must pass in a file:// URI to convert to a file path');
+ }
+
+ var rest = decodeURI(uri.substring(7));
+ var firstSlash = rest.indexOf('/');
+ var host = rest.substring(0, firstSlash);
+ var path = rest.substring(firstSlash + 1);
+
+ // 2. Scheme Definition
+ // As a special case, <host> can be the string "localhost" or the empty
+ // string; this is interpreted as "the machine from which the URL is
+ // being interpreted".
+ if ('localhost' == host) host = '';
+
+ if (host) {
+ host = sep + sep + host;
+ }
+
+ // 3.2 Drives, drive letters, mount points, file system root
+ // Drive letters are mapped into the top of a file URI in various ways,
+ // depending on the implementation; some applications substitute
+ // vertical bar ("|") for the colon after the drive letter, yielding
+ // "file:///c|/tmp/test.txt". In some cases, the colon is left
+ // unchanged, as in "file:///c:/tmp/test.txt". In other cases, the
+ // colon is simply omitted, as in "file:///c/tmp/test.txt".
+ path = path.replace(/^(.+)\|/, '$1:');
+
+ // for Windows, we need to invert the path separators from what a URI uses
+ if (sep == '\\') {
+ path = path.replace(/\//g, '\\');
+ }
+
+ if (/^.+\:/.test(path)) {
+ // has Windows drive at beginning of path
+ } else {
+ // unix path…
+ path = sep + path;
+ }
+
+ return host + path;
+}