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https://issues.apache.org/jira/browse/IO-555?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16257736#comment-16257736
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Gary Gregory commented on IO-555:
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I added reserved file names with data for Windows only for now. I think that
for windows, there need to be a provision to reject "." and "..". What about
for Linux and Mac?
Also TODO is to come up with a solution for FS names instead of OS names. A
backstop based on OS would be good too.
> Add a FileSystem enum to provide legal file names
> -------------------------------------------------
>
> Key: IO-555
> URL: https://issues.apache.org/jira/browse/IO-555
> Project: Commons IO
> Issue Type: Improvement
> Reporter: Gary Gregory
> Assignee: Gary Gregory
> Fix For: 2.7
>
>
> Add {{org.apache.commons.io.FilenameUtils.isIllegalWindowsFileName(char)}}.
> {code:java}
> /**
> * Checks whether the given character is illegal in a Windows file names.
> * <p>
> * The illegal character are:
> * </p>
> * <ul>
> * <li>< (less than</li>
> * <li>> (greater than</li>
> * <li>: (colon</li>
> * <li>" (double quote</li>
> * <li>/ (forward slash</li>
> * <li>\ (backslash</li>
> * <li>| (vertical bar or pipe</li>
> * <li>? (question mark</li>
> * <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
> * @return whether the give character is legal
> * @since 2.7
> */
> {code}
> I use this method as a building block to create file names based on Strings
> from other sources.
> A further contribution could be: {{String toLegalWindowsFileName(String
> input, char replacementChar)}}
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