On Jan 16, 2013, at 09:12 , "jonat...@mugginsoft.com" <jonat...@mugginsoft.com>
wrote:
> To be honest I rarely remember to call -fileSystemRepresentation.
> The docs seem to indicate that its only purpose is to replace abstract / and
> . characters with OS equivalents.
> On OS X this would have seem to have no net result.
>
> Is there more to this?
You absolutely have to do it. There may be other things, but the
transformations in 'fileSystemRepresentation' include at least:
1. '/' characters are replaced by ':', for file systems that use '/' as a path
component separator. (':' has always been illegal in file names at the UI, so
the transformation is reversible.)
2. Graphemes with multiple Unicode representations are converted to a normal
form, for file systems that store Unicode file names. (Can't remember which
form -- Unicode normal form D, I think.) That removes indeterminacy when there
are accented "characters" (graphemes) with equivalent 1- and 2- character
Unicode forms, or "characters" with multiple accents where the order of the
accents could vary.
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