Re: [PATCH] Speeding up FAT operations
H. Peter Anvin (hpa@transmeta.com)
Thu, 24 Sep 1998 12:37:17 -0700 (PDT)
>
> According to several sources, space _is_ invalid in MS- and IBM-DOS at
> least. (IBM DOS Technical Reference, page 2-4; Using IBM DOS 4.0, page 23;
> Microsoft MS-DOS 4.0 Users Guide and Reference, pages 16 thru 17;
> Microsoft MS-DOS 5.0 Users Guide and Reference, pages 69 through 70) The
> fact that some questionable(?) process lets you create them doesn't change
> the fact - if you take a disk-editor to your disk-contents, it's possible
> to create a number of illegal combinations. Besides of which, I suspect
> you're confusing with the "Phantom Space" as somebody else suggested
> earlier. On the other hand, there's often still reason to support
> non-standard behaviour - but once again, this isn't even an issue with
> the patches referred to by this thread.
>
The manuals say so, but the OS disagrees. COMMAND.COM doesn't like
it, though. Note that you're reading the *user guide*, which isn't
exactly a spec.
MS-DOS will, in fact, let you create a filename with spaces in them,
although I believe it will not let the space be the first character
(and as the last character it gets cropped.)
-hpa
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