[Expat-bugs] [ expat-Bugs-3514595 ] "Unknown encoding error" with "iso-8859-15"

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Bugs item #3514595, was opened at 2012-04-03 07:20
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Category: None
Group: Not a Bug
Status: Open
Resolution: Rejected
Priority: 5
Private: No
Submitted By: https://www.google.com/accounts ()
Assigned to: Nobody/Anonymous (nobody)
Summary: "Unknown encoding error" with "iso-8859-15"

Initial Comment:
hello,
I have 2 files which looks similar except for the encoding. One (OK) is "iso-8859-1", the other (KO) is "iso-8859-15".
I have tried EXPAT from version 2.0 to 2.1 and both generates an error when parsing the "iso-8859-15" file.
Can you please explain if this is a bug or not and if not why??
I have downloaded expat from this link
http://sourceforge.net/projects/expat/files/expat_win32/2.1.0/expat-win32bin-2.1.0.exe/download
and
http://sourceforge.net/projects/expat/files/expat_win32/2.0.0/expat_win32bin_2_0_0.exe/download

and this is my result
C:\Expat-2.1.0\Bin>dir
 Volume in drive C has no label.
 Volume Serial Number is 455A-51B9

 Directory of C:\Expat-2.1.0\Bin

03/04/2012  16:01    <DIR>          .
03/04/2012  16:01    <DIR>          ..
03/04/2012  14:35             5.176 FILE_KO.xml
03/04/2012  14:35             1.419 FILE_OK.xml
24/03/2012  15:32           131.584 libexpat.dll
24/03/2012  15:32            17.234 libexpat.lib
24/03/2012  15:32           498.530 libexpatMT.lib
24/03/2012  15:32           134.656 libexpatw.dll
24/03/2012  15:32            17.316 libexpatw.lib
24/03/2012  15:32           515.268 libexpatwMT.lib
24/03/2012  15:32            70.144 xmlwf.exe
               9 File(s)      1.391.327 bytes
               2 Dir(s)  43.431.870.464 bytes free

C:\Expat-2.1.0\Bin>xmlwf.exe FILE_KO.xml
FILE_KO.xml:1:30: unknown encoding

C:\Expat-2.1.0\Bin>xmlwf.exe FILE_OK.xml

C:\Expat-2.1.0\Bin>

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>Comment By: https://www.google.com/accounts ()
Date: 2012-04-04 02:11

Message:
from what I read here
http://www.w3.org/TR/2008/REC-xml-20081126/#charencoding
it seems that the W3C recognize the importance of the encodings in subject.
Especially as this is containing the Euro € symbol. 
[...]
Although an XML processor is required to read only entities in the UTF-8
and UTF-16 encodings, it is recognized that other encodings are used around
the world, and it may be desired for XML processors to read entities that
use them. In the absence of external character encoding information (such
as MIME headers), parsed entities which are stored in an encoding other
than UTF-8 or UTF-16 MUST begin with a text declaration (see 4.3.1 The Text
Declaration) containing an encoding declaration:
[...]

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Comment By: Karl Waclawek (kwaclaw)
Date: 2012-04-03 08:32

Message:
Expat does not support iso-8859-15. It only supports UTF-8, UTF-16,
ISO-8859-1, and US-ASCII. The XML specification does not require an XML
parser to support anything else. Your best bet is to convert the document
to UTF-8 or UTF-16.

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