On 9/15/20 8:10 PM, James Blachly wrote:
Steve: It sounds as if the spec is correct but the glyph (codepoint?) range is outdated. If this is the case, it would be a worthwhile update. Do you really think it would be rejected out of hand?
OK interestingly this code point 0x2202 falls within the range "mathematical operators" [0] , and I could see why in general a range called "operators" (which includes e.g. set membership, relations, operators you would see in abstract algebra, etc.) however, the first 8 codepoints in the range are "Miscellaneous mathematical symbols" and include several that would be appropriately included as/in token names.
Indeed, chapter 22, page 823 of the Unicode standard groups ∂ U+2202 (the partial differential symbol in question) along with "Basic Set of Alphanumeric Characters" that includes Latin 0-9, [a-z,A-Z], uppercase greek A-Ω, nabla and variant theta, the lowercase Greek letters, and besides U+2202 ∂, six additional glyph variants.
Due to de-duplication of code points, some things that may rightly appear in multiple ranges (like U+2202 ∂) are deduplicated and that I think is the fate that befell this variant delta.
