Phillip Hallam-Baker wrote: > Before you answer that, here is a list of consensus requirements on > the document format: The fundamental consensus requirement is that the document format MUST be widely (and internationally) legible. The internationalization requirement automatically excludes non-ASCII characters. Pure ASCII HTML may (or may not) be widely legible. However, > 2) Readily supported by a wide range of authoring tools > 3) Conformance can be checked using automatic tools > 4) Open specification, stable, non proprietary HTML is already too complex and unstable that there is no hope that some IETF-specific profiling can be widely and stably supported. > 5) Reversible, able to recover editing format from publication format Reversibility does not help if an editor can not recognize (nor input) some character, which also requires pure ASCII. > 6) Longeivity, guarantee of being able to interpret them in 1000 years Then, we should use a format available at least 500 years ago. Were you using HTML 500 years ago? Masataka Ohta _______________________________________________ Ietf mailing list Ietf@xxxxxxxx https://www.ietf.org/mailman/listinfo/ietf