DO NOT REPLY [Bug 8194] - % char in file name causes exception in parse method

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http://nagoya.apache.org/bugzilla/show_bug.cgi?id=8194

% char in file name causes exception in parse method

gmarcy@us.ibm.com changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|                            |INVALID



------- Additional Comments From gmarcy@us.ibm.com  2002-04-17 14:22 -------
While one might like to think of the parameter to parse() as being a file
name, it is not.  It is a system identifier, which is somewhat like a URI.
The XML parser opens resources via URIs, not filenames.  There are some
minor "hacks" to try to recognize things like "C:" and '\' instead of '/',
but those are all things that should not ever be used in XML files and
the code for the document entity system identifier is not any different
in this regard in Xerces.

Therefore, the "file name" must obey the conventions for URIs and that
includes which characters are legal verbatum and which must be escaped.
In particular, in rfc2396, which governs URIs, it says:

  "Because the percent "%" character always has the reserved purpose of
   being the escape indicator, it must be escaped as "%25" in order to
   be used as data within a URI."

So, any system identifier that has a "%" that is not a URI escape sequence
is an "illegal argument".

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