14. 资料性参考文献 (Informative References)
[CESU-8]
Phipps, T., "Unicode Technical Report #26: Compatibility Encoding Scheme for UTF-16: 8-Bit (CESU-8)", UTR 26, April 2002, \http://www.unicode.org/unicode/reports/tr26/\``.
说明: CESU-8 是一种类似 UTF-8 的编码, 它编码 UTF-16 代码值, 而不是 Unicode 码位 (code points). 它不是有效的 UTF-8, 也不适用于 Internet.
[FSS_UTF]
X/Open Company Ltd., "X/Open Preliminary Specification -- File System Safe UCS Transformation Format (FSS-UTF)", May 1993, \http://wwwold.dkuug.dk/jtc1/sc22/wg20/docs/N193-FSS-UTF.pdf\``.
说明: FSS-UTF 是 UTF-8 的早期前身之一, 是形成当前 UTF-8 规范的标准化过程的一部分.
[RFC2045]
Freed, N. and N. Borenstein, "Multipurpose Internet Mail Extensions (MIME) Part One: Format of Internet Message Bodies", RFC 2045, November 1996.
说明: 定义电子邮件消息体的 MIME 框架, 包括字符集标记.
[RFC2234]
Crocker, D. and P. Overell, "Augmented BNF for Syntax Specifications: ABNF", RFC 2234, November 1997.
说明: 定义 ABNF 表示法, 本文档第 4 节使用该表示法来规定 UTF-8 字节序列语法.
[RFC2978]
Freed, N. and J. Postel, "IANA Charset Registration Procedures", BCP 19, RFC 2978, October 2000.
说明: 规定向 IANA 注册字符集名称的程序, 本 RFC 对 UTF-8 charset 的处理遵循该程序.
[UAX15]
Davis, M. and M. Duerst, "Unicode Standard Annex #15: Unicode Normalization Forms", An integral part of The Unicode Standard, Version 4.0.0, April 2003, \http://www.unicode.org/unicode/reports/tr15\``.
说明: 描述 Unicode 规范化形式 (Unicode Normalization Forms, NFC, NFD, NFKC, NFKD), 这些形式为安全考虑章节中讨论的规范等价问题提供解决方案.
[US-ASCII]
American National Standards Institute, "Coded Character Set - 7-bit American Standard Code for Information Interchange", ANSI X3.4, 1986.
说明: ASCII 字符集, 它与 UTF-8 编码完全兼容并在其中得到保留.