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- From: "Ingo Macherius" <Ingo.Macherius@TU-Clausthal.de>
- To: firstname.lastname@example.org
- Date: Tue, 16 Dec 1997 14:02:50 +0000
This is a question about ambigous mapping of URL used as
Consider two files. A document "Test.xml":
<!DOCTYPE test SYSTEM "test.dtd">
<!-- note lower case t in test.dtd -->
and in the same directory a file called "Test.dtd".
XML-PR states: "[The SystemLiteral ...] is a URI, which may be used to
retrieve the entity". RFC1866 (section 3.1) declares file:-URL
as strictly system dependent, so what ?
Depending on processing context, the SystemLiteral may be
interpreted as either a relative URL of type "file:" (not necessarily
case sensitive) or type "http:" (case sensitive) !
So if interpreted as "file:" the above parses fine on Windows and
fails on Unix. If the same pair of files would have been served via
"http:", the error would have become obvious on both platforms (404
File Not Found).
Should XML try to overcome this (e.g. by requiring case-sensitivity in
file:-URL, despite of the underlaying OS), or is this out of scope ?
Snail : Ingo Macherius // L'Aigler Platz 4 // D-38678 Clausthal-Zellerfeld
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