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-rw-r--r--enc/unicode.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/enc/unicode.c b/enc/unicode.c
index 5087c55a07..796eb94c19 100644
--- a/enc/unicode.c
+++ b/enc/unicode.c
@@ -147,7 +147,7 @@ code3_equal(const OnigCodePoint *x, const OnigCodePoint *y)
#define SpecialsCodepointExtract(n) ((n)&((1<<SpecialsLengthOffset)-1))
#define SpecialsLengthEncode(n) ((n)<<SpecialsLengthOffset)
-#define OnigSpecialIndexMask (((1<<OnigSpecialIndexWidth)-1)<<OnigSpecialIndexWidth)
+#define OnigSpecialIndexMask (((1<<OnigSpecialIndexWidth)-1)<<OnigSpecialIndexShift)
#define OnigSpecialIndexEncode(n) ((n)<<OnigSpecialIndexShift)
#define OnigSpecialIndexDecode(n) (((n)&OnigSpecialIndexMask)>>OnigSpecialIndexShift)
@@ -158,7 +158,7 @@ code3_equal(const OnigCodePoint *x, const OnigCodePoint *y)
#define ST ONIGENC_CASE_TITLECASE
#define SU ONIGENC_CASE_UP_SPECIAL
#define SL ONIGENC_CASE_DOWN_SPECIAL
-#define I(n) 0
+#define I(n) OnigSpecialIndexEncode(n)
#define L(n) SpecialsLengthEncode(n)
#include "enc/unicode/casefold.h"