On Tue, Aug 18, 2009 at 10:01 AM, Nicholas Clark<n...@ccl4.org> wrote:
> On Tue, Aug 18, 2009 at 09:24:08AM +0200, pugs-comm...@feather.perl6.nl wrote:
>
>> +=head3 Default constraints
>> +
>> +The default p{} only allows "/" as separator and does not allow path
>> elements
>> +to contain
>> +characters that won't work on modern Windows and Unix like \ / ? % * : | "
>> > <,
>> +etc. The reason for this is that portable paths are the default. If
>> +platform/filesystem specific behavior is really needed it should be shown in
>> +the code by applying different sets of constraints (see below).
>
> Perl 5 runs on (at least) VMS and VOS too. So, if Perl 6 is to adopt a policy
> of enforced portable filenames by default, it should (at least) also exclude
> - as the first character, and forbid more than one . in a filename.
And, as I mentioned in an earlier post during the discussion, the
restrictions for Windows are numerous:
http://msdn.microsoft.com/en-us/library/aa365247(VS.85).aspx
Enforcing truly "portable" filenames is unrealistic, I think, but
having a POSIX-checking default is a good thing.
--
Jan
