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Re: What are you expecting XML to be in?

by merlyn (Sage)
on Jun 03, 2001 at 21:56 UTC ( [id://85342] : note . print w/replies, xml ) Need Help??


in reply to What are you expecting XML to be in?
in thread Converting character encodings

An XML compliant parser must support Unicode, but a particular Unicode file can be represented in ISO-8859-1.

-- Randal L. Schwartz, Perl hacker

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Re: Re: What are you expecting XML to be in?
by John M. Dlugosz (Monsignor) on Jun 03, 2001 at 22:44 UTC
    That's a proper subset of UTF-8, so not really necessary. Can a particular XML file be represented in, say, 8859-6 or JIS-X, and still be standard? I don't like this because it means that a file can't be read unless the parser knows that character set.
      7-bit ISO-8859-1 (also called "ASCII" {grin}) is a proper subset of UTF-8, but not 8-bit ISO-8859-1. So yes, you'd need to declare the file as ISO-8859-1 if you wanted to have any "second half" characters, but otherwise you can let it default to UTF-8.

      -- Randal L. Schwartz, Perl hacker

        Oh yea, that's right. 8859-1 is a subset of Unicode character encoding, but not UTF-8. I mixed them up.

        So one can find existing xml files with various encodings? Does that mean a parser needs a conformance statement as to what encodings it can understand?