(case table): Do nothing special for i and I.

diff --git a/lisp/international/characters.el b/lisp/international/characters.el
index 0b7c223c258e1011c7f7dd5cb368fa3a9b51fbef..3522b57d5d9bd2947a540a2d2cdfa4dc3eec7df2 100644 (file)
--- a/lisp/international/characters.el
+++ b/lisp/international/characters.el
@@ -912,12 +912,6 @@
 
 (let ((tbl (standard-case-table)) c)
 
-;; In some languages, U+0049 LATIN CAPITAL LETTER I and U+0131 LATIN
-;; SMALL LETTER DOTLESS I make a case pair, and so do U+0130 LATIN
-;; CAPITAL LETTER I WITH DOT ABOVE and U+0069 LATIN SMALL LETTER I.
-;; Thus we have to check language-environment to handle casing
-;; correctly.  Currently only I<->i is available.
-
   ;; Latin Extended-A, Latin Extended-B
   (setq c #x0100)
   (while (<= c #x0233)
@@ -933,8 +927,20 @@
         (set-case-syntax-pair
          (decode-char 'ucs (1- c)) (decode-char 'ucs c) tbl))
     (setq c (1+ c)))
-  (set-downcase-syntax  ?\e$,1 P\e(B ?i tbl)
-  (set-upcase-syntax    ?I ?\e$,1 Q\e(B tbl)
+
+
+  ;; In some languages, such as Turkish, U+0049 LATIN CAPITAL LETTER I
+  ;; and U+0131 LATIN SMALL LETTER DOTLESS I make a case pair, and so
+  ;; do U+0130 LATIN CAPITAL LETTER I WITH DOT ABOVE and U+0069 LATIN
+  ;; SMALL LETTER I.
+
+  ;; We used to set up half of those correspondence unconditionally,
+  ;; but that makes searches slow.  So now we don't set up either half
+  ;; of these correspondences by default.
+
+  ;;  (set-downcase-syntax  ?\e$,1 P\e(B ?i tbl)
+  ;;  (set-upcase-syntax    ?I ?\e$,1 Q\e(B tbl)
+
   (set-case-syntax-pair ?\e$,1 R\e(B ?\e$,1 S\e(B tbl)
   (set-case-syntax-pair ?\e$,1 T\e(B ?\e$,1 U\e(B tbl)
   (set-case-syntax-pair ?\e$,1 V\e(B ?\e$,1 W\e(B tbl)