("Lower" lower-case boolean)
("Math" math boolean)
("NChar" noncharactor-code-point boolean)
-("NFC_QC" nfc-quick-check (enum "Y" "N" "M"))
-("NFD_QC" nfd-quick-check (enum "Y" "N"))
+("NFC_QC" nfc-quick-check (enum ("Y" . #t) ("N" . #f) ("M" . maybe)))
+("NFD_QC" nfd-quick-check boolean)
("NFKC_CF" nfkc-case-fold code-point*)
-("NFKC_QC" nfkc-quick-check (enum "Y" "N" "M"))
-("NFKD_QC" nfkd-quick-check (enum "Y" "N"))
+("NFKC_QC" nfkc-quick-check (enum ("Y" . #t) ("N" . #f) ("M" . maybe)))
+("NFKD_QC" nfkd-quick-check boolean)
("OAlpha" other-alphabetic boolean)
("ODI" other-default-ignorable-code-point boolean)
("OGr_Ext" other-grapheme-extend boolean)