add node modules to repo

node_modules/sanitize-filename/index.js

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+/*jshint node:true*/
+'use strict';
+
+/**
+ * Replaces characters in strings that are illegal/unsafe for filenames.
+ * Unsafe characters are either removed or replaced by a substitute set
+ * in the optional `options` object.
+ *
+ * Illegal Characters on Various Operating Systems
+ * / ? < > \ : * | "
+ * https://kb.acronis.com/content/39790
+ *
+ * Unicode Control codes
+ * C0 0x00-0x1f & C1 (0x80-0x9f)
+ * http://en.wikipedia.org/wiki/C0_and_C1_control_codes
+ *
+ * Reserved filenames on Unix-based systems (".", "..")
+ * Reserved filenames in Windows ("CON", "PRN", "AUX", "NUL", "COM1",
+ * "COM2", "COM3", "COM4", "COM5", "COM6", "COM7", "COM8", "COM9",
+ * "LPT1", "LPT2", "LPT3", "LPT4", "LPT5", "LPT6", "LPT7", "LPT8", and
+ * "LPT9") case-insesitively and with or without filename extensions.
+ *
+ * Capped at 255 characters in length.
+ * http://unix.stackexchange.com/questions/32795/what-is-the-maximum-allowed-filename-and-folder-size-with-ecryptfs
+ *
+ * @param  {String} input   Original filename
+ * @param  {Object} options {replacement: String}
+ * @return {String}         Sanitized filename
+ */
+
+var truncate = require("truncate-utf8-bytes");
+
+var illegalRe = /[\/\?<>\\:\*\|":]/g;
+var controlRe = /[\x00-\x1f\x80-\x9f]/g;
+var reservedRe = /^\.+$/;
+var windowsReservedRe = /^(con|prn|aux|nul|com[0-9]|lpt[0-9])(\..*)?$/i;
+var windowsTrailingRe = /[\. ]+$/;
+
+function sanitize(input, replacement) {
+  var sanitized = input
+    .replace(illegalRe, replacement)
+    .replace(controlRe, replacement)
+    .replace(reservedRe, replacement)
+    .replace(windowsReservedRe, replacement)
+    .replace(windowsTrailingRe, replacement);
+  return truncate(sanitized, 255);
+}
+
+module.exports = function (input, options) {
+  var replacement = (options && options.replacement) || '';
+  var output = sanitize(input, replacement);
+  if (replacement === '') {
+    return output;
+  }
+  return sanitize(output, '');
+};