duerst	2016-02-04 21:05:23 +0900 (Thu, 04 Feb 2016)

  New Revision: 53740

  https://svn.ruby-lang.org/cgi-bin/viewvc.cgi?view=revision&revision=53740

  Log:
    * enc/unicode.c: Activated :ascii flag for ASCII-only case conversion
      (with Kimihito Matsui)

  Modified files:
    trunk/ChangeLog
    trunk/enc/unicode.c
Index: ChangeLog
===================================================================
--- ChangeLog	(revision 53739)
+++ ChangeLog	(revision 53740)
@@ -1,3 +1,8 @@ https://github.com/ruby/ruby/blob/trunk/ChangeLog#L1
+Thu Feb  4 21:05:17 2016  Martin Duerst  <duerst@i...>
+
+	* enc/unicode.c: Activated :ascii flag for ASCII-only case conversion
+	  (with Kimihito Matsui)
+
 Thu Feb  4 17:38:01 2016  Nobuyoshi Nakada  <nobu@r...>
 
 	* re.c (reg_set_source): make source string frozen without
Index: enc/unicode.c
===================================================================
--- enc/unicode.c	(revision 53739)
+++ enc/unicode.c	(revision 53740)
@@ -645,7 +645,7 @@ onigenc_unicode_case_map(OnigCaseFoldTyp https://github.com/ruby/ruby/blob/trunk/enc/unicode.c#L645
 		}
 	    }
 	}
-	else if (code>=0x00C0) { /* deal with non-ASCII; nothing relevant below U+00C0 */
+	else if (!(flags&ONIGENC_CASE_ASCII_ONLY) && code>=0x00C0) { /* deal with non-ASCII; nothing relevant below U+00C0 */
 	    if (code==0x0130) {
 		if (flags&ONIGENC_CASE_DOWNCASE) {
 		    if (flags&ONIGENC_CASE_FOLD_TURKISH_AZERI)

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