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authorjan.nijtmans <nijtmans@users.sourceforge.net>2020-05-12 07:26:16 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2020-05-12 07:26:16 (GMT)
commitc1d202b1121381431982ea7d40375e9ce0651f41 (patch)
tree15f1d1c4177bf2c718246bdf192c6b7db216d091 /generic/tclUtf.c
parentc05a2fd5659cf4e6974bb4ea8491d9a61952ff8f (diff)
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Fix "knownBug" utf-4.11. Turns out a few other testcases where still not correct, now they are. Make next/prev behavior the same for all TCL_UTF_MAX values, since the exact behavior for TCL_UTF_MAX>3 should be worked out further for Tcl 8.7 first, then everything agreed upon can be backported.
Diffstat (limited to 'generic/tclUtf.c')
-rw-r--r--generic/tclUtf.c28
1 files changed, 5 insertions, 23 deletions
diff --git a/generic/tclUtf.c b/generic/tclUtf.c
index 50c5d3d..f2d2b3b 100644
--- a/generic/tclUtf.c
+++ b/generic/tclUtf.c
@@ -64,21 +64,10 @@ static const unsigned char totalBytes[256] = {
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-#if TCL_UTF_MAX < 4
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-#else /* Tcl_UtfCharComplete() might point to 2nd byte of valid 4-byte sequence */
- 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
- 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
-#endif
2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
- 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
-#if TCL_UTF_MAX > 4
- 4,4,4,4,4,
-#else
- 1,1,1,1,1,
-#endif
- 1,1,1,1,1,1,1,1,1,1,1
+ 3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1
};
static const unsigned char complete[256] = {
@@ -86,13 +75,10 @@ static const unsigned char complete[256] = {
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-#if TCL_UTF_MAX < 4
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
- 1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,
-#else /* Tcl_UtfCharComplete() might point to 2nd byte of valid 4-byte sequence */
+/* Tcl_UtfCharComplete() might point to 2nd byte of valid 4-byte sequence */
3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
-#endif
+/* End of "continuation byte section" */
2,1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,
3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,3,
#if TCL_UTF_MAX > 4
@@ -857,7 +843,7 @@ Tcl_UtfPrev(
* it (the fallback) is correct.
*/
- || (trailBytesSeen >= complete[byte])) {
+ || (trailBytesSeen >= totalBytes[byte])) {
/*
* That is, (1 + trailBytesSeen > needed).
* We've examined more bytes than needed to complete
@@ -898,7 +884,7 @@ Tcl_UtfPrev(
/* Continue the search backwards... */
look--;
- } while (trailBytesSeen < ((TCL_UTF_MAX > 4) ? 4 : 3));
+ } while (trailBytesSeen < 3);
/*
* We've seen 3 (or 4) trail bytes, so we know there will not be a
@@ -906,11 +892,7 @@ Tcl_UtfPrev(
* accepting the fallback (for TCL_UTF_MAX > 4) or just go back as
* far as we can.
*/
-#if TCL_UTF_MAX > 4
- return fallback;
-#else
return src - 3;
-#endif
}
/*