On Saturday, July 19, 2003 1:55 PM, Michael Everson <[EMAIL PROTECTED]> wrote:
> Hm. See http://developer.apple.com/fonts/LastResortFont/ where it > shows glyphs for "illegal" characters (FFFE/FFFF etc.) as well as > "undefined" characters (valid code positions which have not been > assigned). I thought somehow that there was a glyph for "broken" > characters (characters that were just plain wrong) as well. Isn't this page creating the idea for a specific block of script-representative glyphs, that could be mapped in plane 14 as special supplementary characters ? If the estimated number of Unicode blocks is expected to be under 1024, this block would use one special character to represent the glyph, i.e. not a control character, but a symbol representative of each assigned Unicode block. If such assignment is not easy to estimate now, glyphs for scripts should be assigned in the order of their definition in successive versions of Unicode). So fonts containing these glyphs could be designed to display these glyphs, in a way similar to the current assignment of control pictures. This page already gives the names of the characters according to the official names of scripts, but a more uniform name than the Postscript name could be used, such as: UNASSIGNED BLOCK SYMBOL, UNASSIGNED CHARACTER SYMBOL, ILLEGAL CHARACTER SYMBOL, then... BASIC LATIN SCRIPT SYMBOL, EXTENDED LATIN 1 SCRIPT SYMBOL, ... By itself, this Apple Developers page is nearly the base for such proposal. If needed, the Unicode "blocks.txt" could specify additional columns to specify the assignment of each script block, with special entries for the symbol used to represent unassigned characters in assigned blocks, or unassigned blocks. -- Philippe. Spams non tolérés: tout message non sollicité sera rapporté à vos fournisseurs de services Internet.
