Create backup file when writing new xml file?

Robert Helling helling at
Mon Feb 17 02:37:22 UTC 2014

On 17.02.2014, at 02:35, Thiago Macieira <thiago at> wrote:

> Uh... I realise that the question might be about string comparisons. Since 
> we're talking about filenames here, it actually bears the question of what the 
> filesystem driver on OS X and on Windows consider to be the same. Do they 
> restrict to ASCII? Do they apply to the full Unicode range? How about the 
> Turkish dotless i?

I cannot say anything substantial in this direction but only remark that subversion on Mac got this wrong at some point leaving me with files that looked like having the same name (with umlaut characters) but where the filenames were encoded differently and thus were different files to the file system. On subsequent invocations subversion would get completely confused claiming that it would now refuse to overwrite files that are not under revision control.


Robert C. Helling     Elite Master Course Theoretical and Mathematical Physics
                      Scientific Coordinator
                      Ludwig Maximilians Universitaet Muenchen, Dept. Physik
                      Phone: +49 89 2180-4523  Theresienstr. 39, rm. B339

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