Add
org.apache.commons.io.FilenameUtils.isIllegalWindowsFileName(char).
Javadoc.
@@ -1309,11 +1309,15 @@ public static boolean isExtension(final String filename, final Collection<String
* <li>* (asterisk</li>
* <li>ASCII NUL (0)</li>
* <li>Integer characters 1 through 31</li>
+ * <li>There may be other characters that the file name does not allow. Please see
+ * <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx">Naming Files, Paths,
+ * and Namespaces</a></li>
* </ul>
*
* @see <a href="https://msdn.microsoft.com/en-us/library/windows/desktop/aa365247(v=vs.85).aspx">Naming Files,
* Paths, and Namespaces</a>
- * @param c the character to check
+ * @param c
+ * the character to check
* @return whether the give character is legal
* @since 2.7
*/
