AMC-ACE-W version 0.1.0

Document Type Expired Internet-Draft (idn WG)
Author Adam Costello 
Last updated 2001-06-01
Stream Internet Engineering Task Force (IETF)
Intended RFC status (None)
Expired & archived
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Stream WG state WG Document
Document shepherd No shepherd assigned
IESG IESG state Expired
Consensus Boilerplate Unknown
Telechat date
Responsible AD (None)
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


AMC-ACE-W is a reversible transformation from a sequence of Unicode [UNICODE] code points to a sequence of letters, digits, and hyphens (LDH characters). AMC-ACE-W could be used as an ASCII-Compatible Encoding (ACE) for internationalized domain names [IDN] [IDNA]. Besides domain names, there might also be other contexts where it is useful to transform Unicode characters into 'safe' (delimiter-free) ASCII characters. (If other contexts consider hyphens to be unsafe, a different character could be used to play its role, like underscore.)


Adam Costello (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)