* string.c, enc/unicode.c: Disassociating ONIGENC_CASE_FOLD flag from

  ONIGENC_CASE_DOWNCASE.
(with Kimihito Matsui)


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@53778 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

3 files changed, 8 insertions, 2 deletions

diff --git a/ChangeLog b/ChangeLog
index b2ce86dfd3..8969f166d1 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+Mon Feb  8 20:43:57 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
+
+	* string.c, enc/unicode.c: Disassociating ONIGENC_CASE_FOLD flag from
+	  ONIGENC_CASE_DOWNCASE.
+	(with Kimihito Matsui)
+
 Mon Feb  8 13:00:17 2016  Martin Duerst  <duerst@it.aoyama.ac.jp>
 
 	* enc/unicode.c: Shortened macros for enc/unicode/casefold.h to
diff --git a/enc/unicode.c b/enc/unicode.c
index 8b2d4386f8..96294f7c3c 100644
--- a/enc/unicode.c
+++ b/enc/unicode.c
@@ -651,7 +651,7 @@ onigenc_unicode_case_map(OnigCaseFoldType* flagP,
 		}
 	    }
 	    else if (code>='A' && code<='Z') {
-		if (flags&ONIGENC_CASE_DOWNCASE) {
+		if (flags&(ONIGENC_CASE_DOWNCASE|ONIGENC_CASE_FOLD)) {
 		    MODIFIED;
 		    if (flags&ONIGENC_CASE_FOLD_TURKISH_AZERI && code=='I')
 			code = DOTLESS_i;
diff --git a/string.c b/string.c
index 3070cbff03..51751f89b7 100644
--- a/string.c
+++ b/string.c
@@ -5647,7 +5647,7 @@ check_case_options(int argc, VALUE *argv, OnigCaseFoldType flags)
 	flags |= ONIGENC_CASE_ASCII_ONLY;
     else if (argv[0]==sym_fold) {
 	if ((flags & (ONIGENC_CASE_UPCASE|ONIGENC_CASE_DOWNCASE)) == ONIGENC_CASE_DOWNCASE)
-	    flags |= ONIGENC_CASE_FOLD;
+	    flags ^= ONIGENC_CASE_FOLD|ONIGENC_CASE_DOWNCASE;
 	else
 	    rb_raise(rb_eArgError, "option :fold only allowed for downcasing");
     }