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Char ::= #x9 | #xA | #xD | [#x20-#xD7FF] | [#xE000-#xFFFD] | [#x +10000-#x10FFFF] /* any Unicode character, excluding the surrogate blo +cks, FFFE, and FFFF. */
[#x7F-#x84], [#x86-#x9F], [#xFDD0-#xFDDF], [#1FFFE-#x1FFFF], [#2FFFE-#x2FFFF], [#3FFFE-#x3FFFF], ... [#AFFFE-#xAFFFF], [#BFFFE-#xBFFFF], [#CFFFE-#xCFFFF], [#DFFFE-#xDFFFF], [#EFFFE-#xEFFFF], [#FFFFE-#xFFFFF], [#10FFFE-#x10FFFF].