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-rw-r--r--generic/tclUtf.c13
1 files changed, 10 insertions, 3 deletions
diff --git a/generic/tclUtf.c b/generic/tclUtf.c
index c08464b..46ce4ef 100644
--- a/generic/tclUtf.c
+++ b/generic/tclUtf.c
@@ -984,7 +984,11 @@ Tcl_UtfToTitle(
}
while (*src) {
bytes = TclUtfToUniChar(src, &ch);
- lowChar = Tcl_UniCharToLower(ch);
+ lowChar = ch;
+ /* Special exception for Georgian Asomtavruli chars, no titlecase. */
+ if ((unsigned)(lowChar - 0x1C90) >= 0x30) {
+ lowChar = Tcl_UniCharToLower(lowChar);
+ }
if (bytes < UtfCount(lowChar)) {
memcpy(dst, src, (size_t) bytes);
@@ -1256,8 +1260,9 @@ Tcl_UniCharToLower(
int ch) /* Unicode character to convert. */
{
int info = GetUniCharInfo(ch);
+ int mode = GetCaseType(info);
- if (GetCaseType(info) & 0x02) {
+ if ((mode & 0x02) && (mode != 0x7)) {
ch += GetDelta(info);
}
return (Tcl_UniChar) ch;
@@ -1291,7 +1296,9 @@ Tcl_UniCharToTitle(
* Subtract or add one depending on the original case.
*/
- ch += ((mode & 0x4) ? -1 : 1);
+ if (mode != 0x7) {
+ ch += ((mode & 0x4) ? -1 : 1);
+ }
} else if (mode == 0x4) {
ch -= GetDelta(info);
}