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-rw-r--r--generic/tclUniData.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/generic/tclUniData.c b/generic/tclUniData.c
index 20fab8c..d8b317a 100644
--- a/generic/tclUniData.c
+++ b/generic/tclUniData.c
@@ -1607,4 +1607,8 @@ enum {
* Unicode character tables.
*/
-#define GetUniCharInfo(ch) (groups[groupMap[pageMap[((ch) & 0xffff) >> OFFSET_BITS] | ((ch) & ((1 << OFFSET_BITS)-1))]])
+#if TCL_UTF_MAX > 3
+# define GetUniCharInfo(ch) (groups[groupMap[pageMap[((ch) & 0x1fffff) >> OFFSET_BITS] | ((ch) & ((1 << OFFSET_BITS)-1))]])
+#else
+# define GetUniCharInfo(ch) (groups[groupMap[pageMap[((ch) & 0xffff) >> OFFSET_BITS] | ((ch) & ((1 << OFFSET_BITS)-1))]])
+#endif