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authorjan.nijtmans <nijtmans@users.sourceforge.net>2012-02-29 21:34:46 (GMT)
committerjan.nijtmans <nijtmans@users.sourceforge.net>2012-02-29 21:34:46 (GMT)
commit6ad807858b1217d40a9e5a2c1d5bf241625971ca (patch)
tree429c25c751c106db85c75db6345c91296dc73692 /generic
parent9e0ab0841248c6ba0cf49036de9005c8d0120a28 (diff)
parent70ea61c893a776323211dbc1d3b5d1d10c7d745e (diff)
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[Bug 3466099] BOM in Unicode
Diffstat (limited to 'generic')
-rw-r--r--generic/tclEncoding.c4
-rw-r--r--generic/tclIOUtil.c17
2 files changed, 18 insertions, 3 deletions
diff --git a/generic/tclEncoding.c b/generic/tclEncoding.c
index 2e0d51f..a4bea31 100644
--- a/generic/tclEncoding.c
+++ b/generic/tclEncoding.c
@@ -984,13 +984,13 @@ Tcl_GetEncodingNames(
int
Tcl_SetSystemEncoding(
Tcl_Interp *interp, /* Interp for error reporting, if not NULL. */
- CONST char *name) /* The name of the desired encoding, or NULL
+ CONST char *name) /* The name of the desired encoding, or NULL/""
* to reset to default encoding. */
{
Tcl_Encoding encoding;
Encoding *encodingPtr;
- if (name == NULL) {
+ if (!name || !*name) {
Tcl_MutexLock(&encodingMutex);
encoding = defaultEncoding;
encodingPtr = (Encoding *) encoding;
diff --git a/generic/tclIOUtil.c b/generic/tclIOUtil.c
index e714471..44849d1 100644
--- a/generic/tclIOUtil.c
+++ b/generic/tclIOUtil.c
@@ -1788,7 +1788,22 @@ Tcl_FSEvalFileEx(
objPtr = Tcl_NewObj();
Tcl_IncrRefCount(objPtr);
- if (Tcl_ReadChars(chan, objPtr, -1, 0) < 0) {
+ /* Try to read first character of stream, so we can
+ * check for utf-8 BOM to be handled especially.
+ */
+ if (Tcl_ReadChars(chan, objPtr, 1, 0) < 0) {
+ Tcl_Close(interp, chan);
+ Tcl_AppendResult(interp, "couldn't read file \"",
+ Tcl_GetString(pathPtr), "\": ", Tcl_PosixError(interp), NULL);
+ goto end;
+ }
+ string = Tcl_GetString(objPtr);
+ /*
+ * If first character is not a BOM, append the remaining characters,
+ * otherwise replace them [Bug 3466099].
+ */
+ if (Tcl_ReadChars(chan, objPtr, -1,
+ memcmp(string, "\xef\xbf\xbe", 3)) < 0) {
Tcl_Close(interp, chan);
Tcl_AppendResult(interp, "couldn't read file \"",
Tcl_GetString(pathPtr), "\": ", Tcl_PosixError(interp), NULL);