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Subject: Re: [office-comment] textEncoding / x-symbol #1 (ODF all versions)
The basic resource for standards-drafters here is Dan Conolley's "Character Set considered harmful" http://www.w3.org/MarkUp/html-spec/charset-harmful.html Some older systems map the Symbol font to a contigous range of application-internal characters, because this supposedly made processing easier: frequently they would just re-use ASCII. However, that comes from the pre-Unicode days where characters were selected by changing fonts. Any vestiges of this should be removed from ODF: it was an obsolete hack 15 years ago. There are, however, legitimate uses for the PUA. It has been common for CJK users (well, perhaps not in the PRC!) to add extra characters to fonts when they need them. Indeed, CJK applications may even have built-in font editors to cope with these. Unicode reduces the need for these (but does not fully remove it.) However, it does not look like the range is being used for that purpose here. By the way, the character range should be U+F000 to U+F0FF, in preferred Unicode notation. Cheers Rick Jelliffe
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