Generate upcase and downcase tables from Unicode data (bug#24603)
Use Unicode data to generate case tables instead of mostly repeating them in lisp code. Do that in a way which maps ‘Dz’ (and similar) digraph to ‘dz’ when down- and ‘DZ’ when upcasing. https://debbugs.gnu.org/cgi/bugreport.cgi?msg=89;bug=24603 lists all changes to syntax table and case tables introduced by this commit. * lisp/international/characters.el: Remove case-pairs defined with explicit Lisp code and instead use Unicode character properties. * test/src/casefiddle-tests.el (casefiddle-tests--characters, casefiddle-tests-casing): Update test cases which are now working as they should.
This commit is contained in:
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0d4290650d
commit
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2 changed files with 74 additions and 280 deletions
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@ -543,10 +543,6 @@ with L, LRE, or LRO Unicode bidi character type.")
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(set-case-syntax ?½ "_" tbl)
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(set-case-syntax ?¾ "_" tbl)
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(set-case-syntax ?¿ "." tbl)
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(let ((c 192))
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(while (<= c 222)
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(set-case-syntax-pair c (+ c 32) tbl)
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(setq c (1+ c))))
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(set-case-syntax ?× "_" tbl)
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(set-case-syntax ?ß "w" tbl)
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(set-case-syntax ?÷ "_" tbl)
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@ -558,101 +554,8 @@ with L, LRE, or LRO Unicode bidi character type.")
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(modify-category-entry c ?l)
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(setq c (1+ c)))
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(let ((pair-ranges '((#x0100 . #x012F)
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(#x0132 . #x0137)
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(#x0139 . #x0148)
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(#x014a . #x0177)
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(#x0179 . #x017E)
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(#x0182 . #x0185)
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(#x0187 . #x0188)
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(#x018B . #x018C)
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(#x0191 . #x0192)
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(#x0198 . #x0199)
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(#x01A0 . #x01A5)
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(#x01A7 . #x01A8)
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(#x01AC . #x01AD)
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(#x01AF . #x01B0)
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(#x01B3 . #x01B6)
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(#x01B8 . #x01B9)
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(#x01BC . #x01BD)
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(#x01CD . #x01DC)
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(#x01DE . #x01EF)
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(#x01F4 . #x01F5)
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(#x01F8 . #x021F)
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(#x0222 . #x0233)
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(#x023B . #x023C)
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(#x0241 . #x0242)
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(#x0246 . #x024F))))
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(dolist (elt pair-ranges)
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(let ((from (car elt)) (to (cdr elt)))
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(while (< from to)
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(set-case-syntax-pair from (1+ from) tbl)
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(setq from (+ from 2))))))
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(set-case-syntax-pair ?Ÿ ?ÿ tbl)
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;; In some languages, such as Turkish, U+0049 LATIN CAPITAL LETTER I
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;; and U+0131 LATIN SMALL LETTER DOTLESS I make a case pair, and so
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;; do U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE and U+0069 LATIN
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;; SMALL LETTER I.
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;; We used to set up half of those correspondence unconditionally,
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;; but that makes searches slow. So now we don't set up either half
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;; of these correspondences by default.
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;; (set-downcase-syntax ?İ ?i tbl)
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;; (set-upcase-syntax ?I ?ı tbl)
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(set-case-syntax-pair ?Ɓ ?ɓ tbl)
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(set-case-syntax-pair ?Ɔ ?ɔ tbl)
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(set-case-syntax-pair ?Ɖ ?ɖ tbl)
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(set-case-syntax-pair ?Ɗ ?ɗ tbl)
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(set-case-syntax-pair ?Ǝ ?ǝ tbl)
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(set-case-syntax-pair ?Ə ?ə tbl)
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(set-case-syntax-pair ?Ɛ ?ɛ tbl)
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(set-case-syntax-pair ?Ɠ ?ɠ tbl)
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(set-case-syntax-pair ?Ɣ ?ɣ tbl)
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(set-case-syntax-pair ?Ɩ ?ɩ tbl)
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(set-case-syntax-pair ?Ɨ ?ɨ tbl)
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(set-case-syntax-pair ?Ɯ ?ɯ tbl)
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(set-case-syntax-pair ?Ɲ ?ɲ tbl)
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(set-case-syntax-pair ?Ɵ ?ɵ tbl)
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(set-case-syntax-pair ?Ʀ ?ʀ tbl)
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(set-case-syntax-pair ?Ʃ ?ʃ tbl)
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(set-case-syntax-pair ?Ʈ ?ʈ tbl)
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(set-case-syntax-pair ?Ʊ ?ʊ tbl)
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(set-case-syntax-pair ?Ʋ ?ʋ tbl)
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(set-case-syntax-pair ?Ʒ ?ʒ tbl)
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;; We use set-downcase-syntax below, since we want upcase of dž
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;; return DŽ, not Dž, and the same for the rest.
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(set-case-syntax-pair ?DŽ ?dž tbl)
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(set-downcase-syntax ?Dž ?dž tbl)
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(set-case-syntax-pair ?LJ ?lj tbl)
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(set-downcase-syntax ?Lj ?lj tbl)
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(set-case-syntax-pair ?NJ ?nj tbl)
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(set-downcase-syntax ?Nj ?nj tbl)
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;; 01F0; F; 006A 030C; # LATIN SMALL LETTER J WITH CARON
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(set-case-syntax-pair ?DZ ?dz tbl)
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(set-downcase-syntax ?Dz ?dz tbl)
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(set-case-syntax-pair ?Ƕ ?ƕ tbl)
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(set-case-syntax-pair ?Ƿ ?ƿ tbl)
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(set-case-syntax-pair ?Ⱥ ?ⱥ tbl)
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(set-case-syntax-pair ?Ƚ ?ƚ tbl)
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(set-case-syntax-pair ?Ⱦ ?ⱦ tbl)
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(set-case-syntax-pair ?Ƀ ?ƀ tbl)
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(set-case-syntax-pair ?Ʉ ?ʉ tbl)
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(set-case-syntax-pair ?Ʌ ?ʌ tbl)
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;; Latin Extended Additional
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(modify-category-entry '(#x1e00 . #x1ef9) ?l)
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(setq c #x1e00)
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(while (<= c #x1ef9)
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(and (zerop (% c 2))
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(or (<= c #x1e94) (>= c #x1ea0))
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(set-case-syntax-pair c (1+ c) tbl))
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(setq c (1+ c)))
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;; Latin Extended-C
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(setq c #x2C60)
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@ -660,57 +563,12 @@ with L, LRE, or LRO Unicode bidi character type.")
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(modify-category-entry c ?l)
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(setq c (1+ c)))
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(let ((pair-ranges '((#x2C60 . #x2C61)
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(#x2C67 . #x2C6C)
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(#x2C72 . #x2C73)
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(#x2C75 . #x2C76))))
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(dolist (elt pair-ranges)
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(let ((from (car elt)) (to (cdr elt)))
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(while (< from to)
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(set-case-syntax-pair from (1+ from) tbl)
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(setq from (+ from 2))))))
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(set-case-syntax-pair ?Ɫ ?ɫ tbl)
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(set-case-syntax-pair ?Ᵽ ?ᵽ tbl)
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(set-case-syntax-pair ?Ɽ ?ɽ tbl)
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(set-case-syntax-pair ?Ɑ ?ɑ tbl)
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(set-case-syntax-pair ?Ɱ ?ɱ tbl)
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(set-case-syntax-pair ?Ɐ ?ɐ tbl)
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(set-case-syntax-pair ?Ɒ ?ɒ tbl)
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(set-case-syntax-pair ?Ȿ ?ȿ tbl)
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(set-case-syntax-pair ?Ɀ ?ɀ tbl)
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;; Latin Extended-D
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(setq c #xA720)
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(while (<= c #xA7FF)
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(modify-category-entry c ?l)
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(setq c (1+ c)))
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(let ((pair-ranges '((#xA722 . #xA72F)
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(#xA732 . #xA76F)
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(#xA779 . #xA77C)
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(#xA77E . #xA787)
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(#xA78B . #xA78E)
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(#xA790 . #xA793)
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(#xA796 . #xA7A9)
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(#xA7B4 . #xA7B7))))
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(dolist (elt pair-ranges)
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(let ((from (car elt)) (to (cdr elt)))
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(while (< from to)
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(set-case-syntax-pair from (1+ from) tbl)
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(setq from (+ from 2))))))
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(set-case-syntax-pair ?Ᵹ ?ᵹ tbl)
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(set-case-syntax-pair ?Ɦ ?ɦ tbl)
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(set-case-syntax-pair ?Ɜ ?ɜ tbl)
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(set-case-syntax-pair ?Ɡ ?ɡ tbl)
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(set-case-syntax-pair ?Ɬ ?ɬ tbl)
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(set-case-syntax-pair ?Ɪ ?ɪ tbl)
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(set-case-syntax-pair ?Ʞ ?ʞ tbl)
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(set-case-syntax-pair ?Ʇ ?ʇ tbl)
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(set-case-syntax-pair ?Ʝ ?ʝ tbl)
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(set-case-syntax-pair ?Ꭓ ?ꭓ tbl)
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;; Latin Extended-E
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(setq c #xAB30)
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(while (<= c #xAB64)
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@ -719,102 +577,19 @@ with L, LRE, or LRO Unicode bidi character type.")
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;; Greek
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(modify-category-entry '(#x0370 . #x03ff) ?g)
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(setq c #x0370)
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(while (<= c #x03ff)
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(if (or (and (>= c #x0391) (<= c #x03a1))
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(and (>= c #x03a3) (<= c #x03ab)))
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(set-case-syntax-pair c (+ c 32) tbl))
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(and (>= c #x03da)
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(<= c #x03ee)
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(zerop (% c 2))
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(set-case-syntax-pair c (1+ c) tbl))
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(setq c (1+ c)))
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(set-case-syntax-pair ?Ά ?ά tbl)
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(set-case-syntax-pair ?Έ ?έ tbl)
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(set-case-syntax-pair ?Ή ?ή tbl)
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(set-case-syntax-pair ?Ί ?ί tbl)
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(set-case-syntax-pair ?Ό ?ό tbl)
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(set-case-syntax-pair ?Ύ ?ύ tbl)
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(set-case-syntax-pair ?Ώ ?ώ tbl)
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;; Armenian
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(setq c #x531)
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(while (<= c #x556)
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(set-case-syntax-pair c (+ c #x30) tbl)
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(setq c (1+ c)))
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;; Greek Extended
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(modify-category-entry '(#x1f00 . #x1fff) ?g)
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(setq c #x1f00)
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(while (<= c #x1fff)
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(and (<= (logand c #x000f) 7)
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(<= c #x1fa7)
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(not (memq c '(#x1f16 #x1f17 #x1f56 #x1f57
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#x1f50 #x1f52 #x1f54 #x1f56)))
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(/= (logand c #x00f0) #x70)
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(set-case-syntax-pair (+ c 8) c tbl))
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(setq c (1+ c)))
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(set-case-syntax-pair ?Ᾰ ?ᾰ tbl)
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(set-case-syntax-pair ?Ᾱ ?ᾱ tbl)
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(set-case-syntax-pair ?Ὰ ?ὰ tbl)
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(set-case-syntax-pair ?Ά ?ά tbl)
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(set-case-syntax-pair ?ᾼ ?ᾳ tbl)
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(set-case-syntax-pair ?Ὲ ?ὲ tbl)
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(set-case-syntax-pair ?Έ ?έ tbl)
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(set-case-syntax-pair ?Ὴ ?ὴ tbl)
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(set-case-syntax-pair ?Ή ?ή tbl)
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(set-case-syntax-pair ?ῌ ?ῃ tbl)
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(set-case-syntax-pair ?Ῐ ?ῐ tbl)
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(set-case-syntax-pair ?Ῑ ?ῑ tbl)
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(set-case-syntax-pair ?Ὶ ?ὶ tbl)
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(set-case-syntax-pair ?Ί ?ί tbl)
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(set-case-syntax-pair ?Ῠ ?ῠ tbl)
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(set-case-syntax-pair ?Ῡ ?ῡ tbl)
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(set-case-syntax-pair ?Ὺ ?ὺ tbl)
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(set-case-syntax-pair ?Ύ ?ύ tbl)
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(set-case-syntax-pair ?Ῥ ?ῥ tbl)
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(set-case-syntax-pair ?Ὸ ?ὸ tbl)
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(set-case-syntax-pair ?Ό ?ό tbl)
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(set-case-syntax-pair ?Ὼ ?ὼ tbl)
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(set-case-syntax-pair ?Ώ ?ώ tbl)
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(set-case-syntax-pair ?ῼ ?ῳ tbl)
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;; cyrillic
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(modify-category-entry '(#x0400 . #x04FF) ?y)
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(setq c #x0400)
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(while (<= c #x04ff)
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(and (>= c #x0400)
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(<= c #x040f)
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(set-case-syntax-pair c (+ c 80) tbl))
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(and (>= c #x0410)
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(<= c #x042f)
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(set-case-syntax-pair c (+ c 32) tbl))
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(and (zerop (% c 2))
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(or (and (>= c #x0460) (<= c #x0480))
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(and (>= c #x048c) (<= c #x04be))
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(and (>= c #x04d0) (<= c #x052e)))
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(set-case-syntax-pair c (1+ c) tbl))
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(setq c (1+ c)))
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(set-case-syntax-pair ?Ӂ ?ӂ tbl)
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(set-case-syntax-pair ?Ӄ ?ӄ tbl)
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(set-case-syntax-pair ?Ӈ ?ӈ tbl)
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(set-case-syntax-pair ?Ӌ ?ӌ tbl)
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(modify-category-entry '(#xA640 . #xA69F) ?y)
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(setq c #xA640)
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(while (<= c #xA66C)
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(set-case-syntax-pair c (+ c 1) tbl)
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(setq c (+ c 2)))
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(setq c #xA680)
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(while (<= c #xA69A)
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(set-case-syntax-pair c (+ c 1) tbl)
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(setq c (+ c 2)))
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;; Georgian
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(setq c #x10A0)
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(while (<= c #x10CD)
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(set-case-syntax-pair c (+ c #x1C60) tbl)
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(setq c (1+ c)))
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;; Cyrillic Extended-C
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(modify-category-entry '(#x1C80 . #x1C8F) ?y)
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@ -844,12 +619,6 @@ with L, LRE, or LRO Unicode bidi character type.")
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(set-case-syntax c "." tbl)
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(setq c (1+ c)))
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;; Roman numerals
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(setq c #x2160)
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(while (<= c #x216f)
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(set-case-syntax-pair c (+ c #x10) tbl)
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(setq c (1+ c)))
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;; Fixme: The following blocks might be better as symbol rather than
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;; punctuation.
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;; Arrows
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@ -873,25 +642,11 @@ with L, LRE, or LRO Unicode bidi character type.")
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;; Circled Latin
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(setq c #x24b6)
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(while (<= c #x24cf)
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(set-case-syntax-pair c (+ c 26) tbl)
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(modify-category-entry c ?l)
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(modify-category-entry (+ c 26) ?l)
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(setq c (1+ c)))
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;; Glagolitic
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(setq c #x2C00)
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(while (<= c #x2C2E)
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(set-case-syntax-pair c (+ c 48) tbl)
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(setq c (1+ c)))
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;; Coptic
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(let ((pair-ranges '((#x2C80 . #x2CE2)
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(#x2CEB . #x2CF2))))
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(dolist (elt pair-ranges)
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(let ((from (car elt)) (to (cdr elt)))
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(while (< from to)
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(set-case-syntax-pair from (1+ from) tbl)
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(setq from (+ from 2))))))
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;; There's no Coptic category. However, Coptic letters that are
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;; part of the Greek block above get the Greek category, and those
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;; in this block are derived from Greek letters, so let's be
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;; Fullwidth Latin
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(setq c #xff21)
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(while (<= c #xff3a)
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(set-case-syntax-pair c (+ c #x20) tbl)
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(modify-category-entry c ?l)
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(modify-category-entry (+ c #x20) ?l)
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(setq c (1+ c)))
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;; Deseret
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(setq c #x10400)
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(while (<= c #x10427)
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(set-case-syntax-pair c (+ c 28) tbl)
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(setq c (1+ c)))
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;; Osage
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(setq c #x104B0)
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(while (<= c #x104D3)
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(set-case-syntax-pair c (+ c 40) tbl)
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(setq c (1+ c)))
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;; Old Hungarian
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(setq c #x10c80)
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(while (<= c #x10cb2)
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(set-case-syntax-pair c (+ c #x40) tbl)
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(setq c (1+ c)))
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;; Warang Citi
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(setq c #x118a0)
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(while (<= c #x118bf)
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(set-case-syntax-pair c (+ c #x20) tbl)
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(setq c (1+ c)))
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;; Adlam
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(setq c #x1e900)
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(while (<= c #x1e921)
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(set-case-syntax-pair c (+ c #x22) tbl)
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(setq c (1+ c)))
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;; Combining diacritics
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(modify-category-entry '(#x300 . #x362) ?^)
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;; Combining marks
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(modify-category-entry '(#x20d0 . #x20ff) ?^)
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;; Set all Letter, uppercase; Letter, lowercase and Letter, titlecase syntax
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;; to word.
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(let ((syn-tab (standard-syntax-table)))
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(map-char-table
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(lambda (ch cat)
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(when (memq cat '(Lu Ll Lt))
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(modify-syntax-entry ch "w " syn-tab)))
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(unicode-property-table-internal 'general-category))
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;; Ⅰ through Ⅻ had word syntax in the past so set it here as well.
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;; General category of those characers is Number, Letter.
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(modify-syntax-entry '(#x2160 . #x216b) "w " syn-tab)
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;; ⓐ thourgh ⓩ are symbols, other according to Unicode but Emacs set
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;; their syntax to word in the past so keep backwards compatibility.
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(modify-syntax-entry '(#x24D0 . #x24E9) "w " syn-tab))
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;; Set downcase and upcase from Unicode properties
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;; In some languages, such as Turkish, U+0049 LATIN CAPITAL LETTER I and
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;; U+0131 LATIN SMALL LETTER DOTLESS I make a case pair, and so do U+0130
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;; LATIN CAPITAL LETTER I WITH DOT ABOVE and U+0069 LATIN SMALL LETTER I.
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;; We used to set up half of those correspondence unconditionally, but that
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;; makes searches slow. So now we don't set up either half of these
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;; correspondences by default.
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;; (set-downcase-syntax ?İ ?i tbl)
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;; (set-upcase-syntax ?I ?ı tbl)
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||||
|
||||
(let ((map-unicode-property
|
||||
(lambda (property func)
|
||||
(map-char-table
|
||||
(lambda (ch cased)
|
||||
;; ASCII characters skipped due to reasons outlined above. As of
|
||||
;; Unicode 9.0, this exception affects the following:
|
||||
;; lc(U+0130 İ) = i
|
||||
;; uc(U+0131 ı) = I
|
||||
;; uc(U+017F ſ) = S
|
||||
;; uc(U+212A K) = k
|
||||
(when (> cased 127)
|
||||
(let ((end (if (consp ch) (cdr ch) ch)))
|
||||
(setq ch (max 128 (if (consp ch) (car ch) ch)))
|
||||
(while (<= ch end)
|
||||
(funcall func ch cased)
|
||||
(setq ch (1+ ch))))))
|
||||
(unicode-property-table-internal property))))
|
||||
(down tbl)
|
||||
(up (case-table-get-table tbl 'up)))
|
||||
|
||||
;; This works on an assumption that if toUpper(x) != x then toLower(x) ==
|
||||
;; x (and the opposite for toLower/toUpper). This doesn’t hold for title
|
||||
;; case characters but those incorrect mappings will be overwritten later.
|
||||
(funcall map-unicode-property 'uppercase
|
||||
(lambda (lc uc) (aset down lc lc) (aset up uc uc)))
|
||||
(funcall map-unicode-property 'lowercase
|
||||
(lambda (uc lc) (aset down lc lc) (aset up uc uc)))
|
||||
|
||||
;; Now deal with the actual mapping. This will correctly assign casing for
|
||||
;; title-case characters.
|
||||
(funcall map-unicode-property 'uppercase
|
||||
(lambda (lc uc) (aset up lc uc) (aset up uc uc)))
|
||||
(funcall map-unicode-property 'lowercase
|
||||
(lambda (uc lc) (aset down uc lc) (aset down lc lc))))
|
||||
|
||||
;; Clear out the extra slots so that they will be recomputed from the main
|
||||
;; (downcase) table and upcase table. Since we’re side-stepping the usual
|
||||
;; set-case-syntax-* functions, we need to do it explicitly.
|
||||
(set-char-table-extra-slot tbl 1 nil)
|
||||
(set-char-table-extra-slot tbl 2 nil)
|
||||
|
||||
;; Fixme: syntax for symbols &c
|
||||
)
|
||||
|
||||
|
|
|
@ -73,8 +73,7 @@
|
|||
|
||||
(?Σ ?Σ ?σ ?Σ)
|
||||
(?σ ?Σ ?σ ?Σ)
|
||||
;; FIXME(bug#24603): Another broken one:
|
||||
;;(?ς ?Σ ?ς ?Σ)
|
||||
(?ς ?Σ ?ς ?Σ)
|
||||
|
||||
(?Ⅷ ?Ⅷ ?ⅷ ?Ⅷ)
|
||||
(?ⅷ ?Ⅷ ?ⅷ ?Ⅷ)))
|
||||
|
@ -196,7 +195,6 @@
|
|||
;;("fish" "FIsh" "fish" "Fish" "Fish")
|
||||
;;("Straße" "STRASSE" "straße" "Straße" "Straße")
|
||||
;;("ΌΣΟΣ" "ΌΣΟΣ" "όσος" "Όσος" "Όσος")
|
||||
;;("όσος" "ΌΣΟΣ" "όσος" "Όσος" "Όσος")
|
||||
;; And here’s what is actually happening:
|
||||
("DŽUNGLA" "DŽUNGLA" "džungla" "DŽungla" "DŽUNGLA")
|
||||
("Džungla" "DžUNGLA" "džungla" "Džungla" "Džungla")
|
||||
|
@ -205,7 +203,8 @@
|
|||
("fish" "fiSH" "fish" "fish" "fish")
|
||||
("Straße" "STRAßE" "straße" "Straße" "Straße")
|
||||
("ΌΣΟΣ" "ΌΣΟΣ" "όσοσ" "Όσοσ" "ΌΣΟΣ")
|
||||
("όσος" "ΌΣΟς" "όσος" "Όσος" "Όσος"))))))
|
||||
|
||||
("όσος" "ΌΣΟΣ" "όσος" "Όσος" "Όσος"))))))
|
||||
|
||||
(ert-deftest casefiddle-tests-casing-byte8 ()
|
||||
(should-not
|
||||
|
|
Loading…
Add table
Reference in a new issue