Recent versions of Saxon have some equally horrible hacks. Specifically
(again only for the less common encodings), it now uses the JDK 1.4
canEncode() method, but does some random sampling to check the answer,
because it is known that some encodings say they can encode characters that
they can't. Yuk.
Michael Kay
http://www.saxonica.com/
-----Original Message-----
From: Elliotte Harold [mailto:elharo(_at_)metalab(_dot_)unc(_dot_)edu]
Sent: 12 November 2004 23:18
To: xsl-list(_at_)lists(_dot_)mulberrytech(_dot_)com
Subject: Re: [xsl] xsl and toc.hhc (was xml -> htmlhelp and
character 8220)
Michael Kay wrote:
As the passage above explains, the encoding most (a) be one
that the JRE
supports, and (b) be one that Saxon knows about. This is because the
translation of unencodable characters into character
references is done by
Saxon, not by the JRE, and until recently there was no way
of asking Java
which encodings were available and which characters they supported.
Well, there's no good way but it can be done. XOM hacks this for the
less common character sets by trying to output the given
character into
a ByteArrayOutputStream and seeing whether it gets that
character or a
replacement character. It's an ugly hack, but I was
pleasantly surprised
at how well it performed. (For the more common character sets
XOM uses
algorithms or lookup-tables.)
--
Elliotte Rusty Harold elharo(_at_)metalab(_dot_)unc(_dot_)edu
XML in a Nutshell 3rd Edition Just Published!
http://www.cafeconleche.org/books/xian3/
http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/
ref=nosim
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