Subject: Re: [xsl] Using accented characters in XML From: Mike Brown <mike@xxxxxxxx> Date: Fri, 18 May 2001 15:48:24 -0600 (MDT) |
Alex Black wrote: > Am I correct in assuming that were he to include that encoding declaration, > along with the accented É - the xslt processor would not have a problem, but > the _output_ would still contain the original character, _not_ its encoded > counterpart? No, you're not correct in assuming that. The encoding declaration has no bearing on output / serialization of the result tree. It is merely saying that the bytes in the XML document represent characters according to a particular character map. The "raw" accented É is the single byte 0xC9 in iso-8859-1, but in utf-8 is the pair of bytes 0xC3 0x89. Whatever was used to produce the XML file put byte 0xC9 in there. The XML parser, when reading these bytes, if it knows that the encoding is iso-8859-1, reports to the application (the XSLT processor) that there is this run of character data consisting of the following: Unicode character U-000000C9 (Latin capital letter E with acute) Unicode character U-00000064 (Latin small letter d) Unicode character U-00000069 (Latin small letter i) Unicode character U-00000074 (Latin small letter t) Unicode character U-00000065 (Latin small letter e) Unicode character U-0000007A (Latin small letter z) If the document contained 0xC3 0x89 instead of 0xC9, and left out the encoding declaration or the encoding declaration said utf-8, it would report the same sequence of characters. If the document contained a character reference É or É instead of the raw accented character, the parser would still report the same thing. Even though the bytes for the 6 characters & # 2 0 1 ; are in the file, it will tell the application that it only saw Unicode character C9. > i.e. if he were going to html, it would look like this: > <b>Éditez</b> (which isn't correct) There's nothing incorrect about that. The HTML document should declare its encoding, to be safe: <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> > not > > <b>Éditez</b> > or > <b>Éditez</b> This is entirely up to the serializer in the XSLT processor's implementation of the html output method. Within the XSLT/XPath tree model there are no entity or character references, only the Unicode characters reported by the parser. The result tree that you construct during an XSLT transformation only contains the one character that is Latin capital letter E with acute. The XSLT processor may serialize that with raw bytes or may use the bytes that form a character or entity reference instead. - Mike _____________________________________________________________________________ mike j. brown, software engineer at | xml/xslt: http://skew.org/xml/ webb.net in denver, colorado, USA | personal: http://hyperreal.org/~mike/ XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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