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From: eastman@csa2.lbl.gov (JACK EASTMAN)
Newsgroups: comp.sys.mac.programmer
Subject: Re: PBGetCatInfo question
Message-ID: <7563@dog.ee.lbl.gov>
Date: 11 Oct 90 16:41:24 GMT
References: <90283.191801CXT105@psuvm.psu.edu> <45563@apple.Apple.COM>
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In article <45563@apple.Apple.COM>, blob@Apple.COM (Brian Bechtel) writes...
>CXT105@psuvm.psu.edu (Christopher Tate) writes:
> 
>>Are indexed calls to PBGetCatInfo() guaranteed to return file/folder
>>names in alphabetical position?  That is, if I start with 1 and call
>>PBGetCatInfo() for every index, one at a time, until I get an error,
>>are the names of the folders/files that I've looked at in alphabetical
>>order?
> 
>>Or, do I have to alphabetize my list of file/folder names myself,
>>after going through the above procedure?
> 
>PBCatInfo() currently returns file/folder names in alphabetical order on
>HFS disks.  There is no guarantee that this behavior will be true on
>disks created by other file systems such as MS-DOS, ISO 9660, High
>Sierra, Apple II, etc. which can be read by the Macintosh.
> 
>The behavior may still be there; it just isn't guaranteed.
> 
>--Brian Bechtel		blob@apple.com		"My opinion, not Apple's"

Be careful here to define what you mean by "alphabetical order".  I know that 
indexed calls to _HGetFInfo return files in ASCII order, not the option-blind
order used by the Finder; so file names beginning with option-characters will
be interposed among non-option-character-named files in the Finder's View by
Name, but will come at the end of a list generated by indexed _HGetFInfo.
I don't know how _GetCatInfo behaves in this regard.

					Jack Eastman
					Berkeley Systems, Inc.
					eastman@lbl.gov