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| author | dgp <dgp@users.sourceforge.net> | 2020-04-13 15:01:38 (GMT) |
|---|---|---|
| committer | dgp <dgp@users.sourceforge.net> | 2020-04-13 15:01:38 (GMT) |
| commit | 9b529e05399279d3631a9740e3b61bb19a1af5d8 (patch) | |
| tree | 0a91f7f4694d6ce28627cc80407449bb9fb0417f /generic/tclCmdMZ.c | |
| parent | 5ca0fff784edcbd2b7eabe15c8aa7ed414ca12f2 (diff) | |
| download | tcl-9b529e05399279d3631a9740e3b61bb19a1af5d8.zip tcl-9b529e05399279d3631a9740e3b61bb19a1af5d8.tar.gz tcl-9b529e05399279d3631a9740e3b61bb19a1af5d8.tar.bz2 | |
Known bug test string-22.14 is not so hard to fix.
Diffstat (limited to 'generic/tclCmdMZ.c')
| -rw-r--r-- | generic/tclCmdMZ.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/generic/tclCmdMZ.c b/generic/tclCmdMZ.c index d4fa4e9..6515d98 100644 --- a/generic/tclCmdMZ.c +++ b/generic/tclCmdMZ.c @@ -2396,12 +2396,22 @@ StringStartCmd( cur = 0; if (index > 0) { p = Tcl_UtfAtIndex(string, index); + + TclUtfToUniChar(p, &ch); for (cur = index; cur >= 0; cur--) { - TclUtfToUniChar(p, &ch); + int delta = 0; + const char *next; + if (!Tcl_UniCharIsWordChar(ch)) { break; } - p = Tcl_UtfPrev(p, string); + + next = Tcl_UtfPrev(p, string); + do { + next += delta; + delta = TclUtfToUniChar(next, &ch); + } while (next + delta < p); + p = next; } if (cur != index) { cur += 1; |