[XML-DEV Mailing List Archive Home] [By Thread] [By Date] [Recent Entries] [Reply To This Message] Re: Character encodings
[Chris von See] > I am relatively new to XML and am trying to develop a program that > can generate XML in various encodings. In section 4.3.3, the XML > spec implies that support of ISO 10646 UCS-2 encoding (i.e. Unicode) > is valid, but in the section on autodetection of encodings (Appendix > F) there's no mention of how to detect UCS-2 encoding. I would > *assume* that UCS-2 would start with \x00 \x3c\ x00 \x3f ("<?") - is > that right? If so, then is the spec wrong in not including this in > Appendix F as valid? Is it reasonable to expect that many people > will use UCS-2 because of its similarity to Unicode? A UCS-2 file starts with the byte order mark (BOM), \xFEFF. The ordering of the two bytes shows whether the document is big-endian or little-endian. >From 4.3.3: Entities encoded in UTF-16 must begin with the Byte Order Mark described by ISO/IEC 10646 Annex E and Unicode Appendix B (the ZERO WIDTH NO-BREAK SPACE character, #xFEFF). This is an encoding signature, not part of either the markup or the character data of the XML document. XML processors must be able to use this character to differentiate between UTF-8 and UTF-16 encoded documents. What's unsaid is that UCS-2 and UTF-16 are the same. -Chris -- <!NOTATION SGML.Geek PUBLIC "-//Anonymous//NOTATION SGML Geek//EN"> <!ENTITY crism PUBLIC "-//O'Reilly//NONSGML Christopher R. Maden//EN" "<URL>http://www.oreilly.com/people/staff/crism/ <TEL>+1.617.499.7487 <USMAIL>90 Sherman Street, Cambridge, MA 02140 USA" NDATA SGML.Geek> xml-dev: A list for W3C XML Developers. To post, mailto:xml-dev@i... Archived as: http://www.lists.ic.ac.uk/hypermail/xml-dev/ To (un)subscribe, mailto:majordomo@i... the following message; (un)subscribe xml-dev To subscribe to the digests, mailto:majordomo@i... the following message; subscribe xml-dev-digest List coordinator, Henry Rzepa (mailto:rzepa@i...)
|
PURCHASE STYLUS STUDIO ONLINE TODAY!Purchasing Stylus Studio from our online shop is Easy, Secure and Value Priced! Download The World's Best XML IDE!Accelerate XML development with our award-winning XML IDE - Download a free trial today! Subscribe in XML format
|