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-rw-r--r--generic/tclEncoding.c546
1 files changed, 281 insertions, 265 deletions
diff --git a/generic/tclEncoding.c b/generic/tclEncoding.c
index 1842fb6..d246cb2 100644
--- a/generic/tclEncoding.c
+++ b/generic/tclEncoding.c
@@ -92,7 +92,7 @@ typedef struct TableEncodingData {
*/
typedef struct EscapeSubTable {
- unsigned int sequenceLen; /* Length of following string. */
+ unsigned sequenceLen; /* Length of following string. */
char sequence[16]; /* Escape code that marks this encoding. */
char name[32]; /* Name for encoding. */
Encoding *encodingPtr; /* Encoding loaded using above name, or NULL
@@ -104,10 +104,10 @@ typedef struct EscapeEncodingData {
int fallback; /* Character (in this encoding) to substitute
* when this encoding cannot represent a UTF-8
* character. */
- unsigned int initLen; /* Length of following string. */
+ unsigned initLen; /* Length of following string. */
char init[16]; /* String to emit or expect before first char
* in conversion. */
- unsigned int finalLen; /* Length of following string. */
+ unsigned finalLen; /* Length of following string. */
char final[16]; /* String to emit or expect after last char in
* conversion. */
char prefixBytes[256]; /* If a byte in the input stream is the first
@@ -123,7 +123,7 @@ typedef struct EscapeEncodingData {
} EscapeEncodingData;
/*
- * constants used when loading an encoding file to identify the type of the
+ * Constants used when loading an encoding file to identify the type of the
* file.
*/
@@ -276,7 +276,7 @@ static int Iso88591ToUtfProc(ClientData clientData,
* See concerns raised in [Bug 1077262].
*/
-static Tcl_ObjType encodingType = {
+static const Tcl_ObjType encodingType = {
"encoding", FreeEncodingIntRep, DupEncodingIntRep, NULL, NULL
};
@@ -294,7 +294,7 @@ static Tcl_ObjType encodingType = {
* Standard Tcl return code.
*
* Side effects:
- * Caches the Tcl_Encoding value as the internal rep of (*objPtr).
+ * Caches the Tcl_Encoding value as the internal rep of (*objPtr).
*
*----------------------------------------------------------------------
*/
@@ -306,6 +306,7 @@ Tcl_GetEncodingFromObj(
Tcl_Encoding *encodingPtr)
{
const char *name = Tcl_GetString(objPtr);
+
if (objPtr->typePtr != &encodingType) {
Tcl_Encoding encoding = Tcl_GetEncoding(interp, name);
@@ -313,7 +314,7 @@ Tcl_GetEncodingFromObj(
return TCL_ERROR;
}
TclFreeIntRep(objPtr);
- objPtr->internalRep.twoPtrValue.ptr1 = (VOID *) encoding;
+ objPtr->internalRep.twoPtrValue.ptr1 = encoding;
objPtr->typePtr = &encodingType;
}
*encodingPtr = Tcl_GetEncoding(NULL, name);
@@ -334,7 +335,7 @@ static void
FreeEncodingIntRep(
Tcl_Obj *objPtr)
{
- Tcl_FreeEncoding((Tcl_Encoding) objPtr->internalRep.twoPtrValue.ptr1);
+ Tcl_FreeEncoding(objPtr->internalRep.twoPtrValue.ptr1);
objPtr->typePtr = NULL;
}
@@ -353,8 +354,7 @@ DupEncodingIntRep(
Tcl_Obj *srcPtr,
Tcl_Obj *dupPtr)
{
- dupPtr->internalRep.twoPtrValue.ptr1 = (VOID *)
- Tcl_GetEncoding(NULL, srcPtr->bytes);
+ dupPtr->internalRep.twoPtrValue.ptr1 = Tcl_GetEncoding(NULL, srcPtr->bytes);
}
/*
@@ -453,8 +453,8 @@ TclSetLibraryPath(
*
* FillEncodingFileMap --
*
- * Called to bring the encoding file map in sync with the current value
- * of the encoding search path.
+ * Called to bring the encoding file map in sync with the current value
+ * of the encoding search path.
*
* Scan the directories on the encoding search path, find the *.enc
* files, and store the found pathnames in a map associated with the
@@ -507,12 +507,12 @@ FillEncodingFileMap(void)
Tcl_ListObjGetElements(NULL, matchFileList, &numFiles, &filev);
for (j=0; j<numFiles; j++) {
- Tcl_Obj *encodingName, *file;
+ Tcl_Obj *encodingName, *fileObj;
- file = TclPathPart(NULL, filev[j], TCL_PATH_TAIL);
- encodingName = TclPathPart(NULL, file, TCL_PATH_ROOT);
+ fileObj = TclPathPart(NULL, filev[j], TCL_PATH_TAIL);
+ encodingName = TclPathPart(NULL, fileObj, TCL_PATH_ROOT);
Tcl_DictObjPut(NULL, map, encodingName, directory);
- Tcl_DecrRefCount(file);
+ Tcl_DecrRefCount(fileObj);
Tcl_DecrRefCount(encodingName);
}
Tcl_DecrRefCount(matchFileList);
@@ -544,6 +544,9 @@ void
TclInitEncodingSubsystem(void)
{
Tcl_EncodingType type;
+ TableEncodingData *dataPtr;
+ unsigned size;
+ unsigned short i;
if (encodingsInitialized) {
return;
@@ -565,10 +568,7 @@ TclInitEncodingSubsystem(void)
type.freeProc = NULL;
type.nullSize = 1;
type.clientData = NULL;
-
- defaultEncoding = Tcl_CreateEncoding(&type);
- tclIdentityEncoding = Tcl_GetEncoding(NULL, type.encodingName);
- systemEncoding = Tcl_GetEncoding(NULL, type.encodingName);
+ tclIdentityEncoding = Tcl_CreateEncoding(&type);
type.encodingName = "utf-8";
type.toUtfProc = UtfExtToUtfIntProc;
@@ -593,43 +593,37 @@ TclInitEncodingSubsystem(void)
* code to duplicate the structure of a table encoding here.
*/
- {
- TableEncodingData *dataPtr = (TableEncodingData *)
- ckalloc(sizeof(TableEncodingData));
- unsigned size;
- unsigned short i;
-
- memset(dataPtr, 0, sizeof(TableEncodingData));
- dataPtr->fallback = '?';
-
- size = 256*(sizeof(unsigned short *) + sizeof(unsigned short));
- dataPtr->toUnicode = (unsigned short **) ckalloc(size);
- memset(dataPtr->toUnicode, 0, size);
- dataPtr->fromUnicode = (unsigned short **) ckalloc(size);
- memset(dataPtr->fromUnicode, 0, size);
-
- dataPtr->toUnicode[0] = (unsigned short *) (dataPtr->toUnicode + 256);
- dataPtr->fromUnicode[0] = (unsigned short *)
- (dataPtr->fromUnicode + 256);
- for (i=1 ; i<256 ; i++) {
- dataPtr->toUnicode[i] = emptyPage;
- dataPtr->fromUnicode[i] = emptyPage;
- }
+ dataPtr = ckalloc(sizeof(TableEncodingData));
+ memset(dataPtr, 0, sizeof(TableEncodingData));
+ dataPtr->fallback = '?';
- for (i=0 ; i<256 ; i++) {
- dataPtr->toUnicode[0][i] = i;
- dataPtr->fromUnicode[0][i] = i;
- }
+ size = 256*(sizeof(unsigned short *) + sizeof(unsigned short));
+ dataPtr->toUnicode = ckalloc(size);
+ memset(dataPtr->toUnicode, 0, size);
+ dataPtr->fromUnicode = ckalloc(size);
+ memset(dataPtr->fromUnicode, 0, size);
+
+ dataPtr->toUnicode[0] = (unsigned short *) (dataPtr->toUnicode + 256);
+ dataPtr->fromUnicode[0] = (unsigned short *) (dataPtr->fromUnicode + 256);
+ for (i=1 ; i<256 ; i++) {
+ dataPtr->toUnicode[i] = emptyPage;
+ dataPtr->fromUnicode[i] = emptyPage;
+ }
- type.encodingName = "iso8859-1";
- type.toUtfProc = Iso88591ToUtfProc;
- type.fromUtfProc = Iso88591FromUtfProc;
- type.freeProc = TableFreeProc;
- type.nullSize = 1;
- type.clientData = dataPtr;
- Tcl_CreateEncoding(&type);
+ for (i=0 ; i<256 ; i++) {
+ dataPtr->toUnicode[0][i] = i;
+ dataPtr->fromUnicode[0][i] = i;
}
+ type.encodingName = "iso8859-1";
+ type.toUtfProc = Iso88591ToUtfProc;
+ type.fromUtfProc = Iso88591FromUtfProc;
+ type.freeProc = TableFreeProc;
+ type.nullSize = 1;
+ type.clientData = dataPtr;
+ defaultEncoding = Tcl_CreateEncoding(&type);
+ systemEncoding = Tcl_GetEncoding(NULL, type.encodingName);
+
encodingsInitialized = 1;
}
@@ -669,7 +663,7 @@ TclFinalizeEncodingSubsystem(void)
* cleaned up.
*/
- FreeEncoding((Tcl_Encoding) Tcl_GetHashValue(hPtr));
+ FreeEncoding(Tcl_GetHashValue(hPtr));
hPtr = Tcl_FirstHashEntry(&encodingTable, &search);
}
@@ -682,15 +676,15 @@ TclFinalizeEncodingSubsystem(void)
*
* Tcl_GetDefaultEncodingDir --
*
- * Legacy public interface to retrieve first directory in the encoding
- * searchPath.
+ * Legacy public interface to retrieve first directory in the encoding
+ * searchPath.
*
* Results:
* The directory pathname, as a string, or NULL for an empty encoding
* search path.
*
* Side effects:
- * None.
+ * None.
*
*-------------------------------------------------------------------------
*/
@@ -715,14 +709,14 @@ Tcl_GetDefaultEncodingDir(void)
*
* Tcl_SetDefaultEncodingDir --
*
- * Legacy public interface to set the first directory in the encoding
- * search path.
+ * Legacy public interface to set the first directory in the encoding
+ * search path.
*
* Results:
- * None.
+ * None.
*
* Side effects:
- * Modifies the encoding search path.
+ * Modifies the encoding search path.
*
*-------------------------------------------------------------------------
*/
@@ -782,7 +776,7 @@ Tcl_GetEncoding(
hPtr = Tcl_FindHashEntry(&encodingTable, name);
if (hPtr != NULL) {
- encodingPtr = (Encoding *) Tcl_GetHashValue(hPtr);
+ encodingPtr = Tcl_GetHashValue(hPtr);
encodingPtr->refCount++;
Tcl_MutexUnlock(&encodingMutex);
return (Tcl_Encoding) encodingPtr;
@@ -841,9 +835,8 @@ static void
FreeEncoding(
Tcl_Encoding encoding)
{
- Encoding *encodingPtr;
+ Encoding *encodingPtr = (Encoding *) encoding;
- encodingPtr = (Encoding *) encoding;
if (encodingPtr == NULL) {
return;
}
@@ -853,13 +846,13 @@ FreeEncoding(
encodingPtr->refCount--;
if (encodingPtr->refCount == 0) {
if (encodingPtr->freeProc != NULL) {
- (*encodingPtr->freeProc)(encodingPtr->clientData);
+ encodingPtr->freeProc(encodingPtr->clientData);
}
if (encodingPtr->hPtr != NULL) {
Tcl_DeleteHashEntry(encodingPtr->hPtr);
}
- ckfree((char *) encodingPtr->name);
- ckfree((char *) encodingPtr);
+ ckfree(encodingPtr->name);
+ ckfree(encodingPtr);
}
}
@@ -929,9 +922,10 @@ Tcl_GetEncodingNames(
Tcl_MutexLock(&encodingMutex);
for (hPtr = Tcl_FirstHashEntry(&encodingTable, &search); hPtr != NULL;
hPtr = Tcl_NextHashEntry(&search)) {
- Encoding *encodingPtr = (Encoding *) Tcl_GetHashValue(hPtr);
+ Encoding *encodingPtr = Tcl_GetHashValue(hPtr);
+
Tcl_CreateHashEntry(&table,
- (char *) Tcl_NewStringObj(encodingPtr->name, -1), &dummy);
+ Tcl_NewStringObj(encodingPtr->name, -1), &dummy);
}
Tcl_MutexUnlock(&encodingMutex);
@@ -944,7 +938,7 @@ Tcl_GetEncodingNames(
Tcl_DictObjFirst(NULL, map, &mapSearch, &name, NULL, &done);
for (; !done; Tcl_DictObjNext(&mapSearch, &name, NULL, &done)) {
- Tcl_CreateHashEntry(&table, (char *) name, &dummy);
+ Tcl_CreateHashEntry(&table, name, &dummy);
}
/*
@@ -1058,13 +1052,13 @@ Tcl_CreateEncoding(
* reference goes away.
*/
- encodingPtr = (Encoding *) Tcl_GetHashValue(hPtr);
+ encodingPtr = Tcl_GetHashValue(hPtr);
encodingPtr->hPtr = NULL;
}
- name = ckalloc((unsigned) strlen(typePtr->encodingName) + 1);
+ name = ckalloc(strlen(typePtr->encodingName) + 1);
- encodingPtr = (Encoding *) ckalloc(sizeof(Encoding));
+ encodingPtr = ckalloc(sizeof(Encoding));
encodingPtr->name = strcpy(name, typePtr->encodingName);
encodingPtr->toUtfProc = typePtr->toUtfProc;
encodingPtr->fromUtfProc = typePtr->fromUtfProc;
@@ -1118,7 +1112,7 @@ Tcl_ExternalToUtfDString(
{
char *dst;
Tcl_EncodingState state;
- Encoding *encodingPtr;
+ const Encoding *encodingPtr;
int flags, dstLen, result, soFar, srcRead, dstWrote, dstChars;
Tcl_DStringInit(dstPtr);
@@ -1133,15 +1127,14 @@ Tcl_ExternalToUtfDString(
if (src == NULL) {
srcLen = 0;
} else if (srcLen < 0) {
- srcLen = (*encodingPtr->lengthProc)(src);
+ srcLen = encodingPtr->lengthProc(src);
}
flags = TCL_ENCODING_START | TCL_ENCODING_END;
while (1) {
- result = (*encodingPtr->toUtfProc)(encodingPtr->clientData, src,
- srcLen, flags, &state, dst, dstLen, &srcRead, &dstWrote,
- &dstChars);
+ result = encodingPtr->toUtfProc(encodingPtr->clientData, src, srcLen,
+ flags, &state, dst, dstLen, &srcRead, &dstWrote, &dstChars);
soFar = dst + dstWrote - Tcl_DStringValue(dstPtr);
if (result != TCL_CONVERT_NOSPACE) {
@@ -1209,7 +1202,7 @@ Tcl_ExternalToUtf(
* correspond to the bytes stored in the
* output buffer. */
{
- Encoding *encodingPtr;
+ const Encoding *encodingPtr;
int result, srcRead, dstWrote, dstChars;
Tcl_EncodingState state;
@@ -1221,7 +1214,7 @@ Tcl_ExternalToUtf(
if (src == NULL) {
srcLen = 0;
} else if (srcLen < 0) {
- srcLen = (*encodingPtr->lengthProc)(src);
+ srcLen = encodingPtr->lengthProc(src);
}
if (statePtr == NULL) {
flags |= TCL_ENCODING_START | TCL_ENCODING_END;
@@ -1244,7 +1237,7 @@ Tcl_ExternalToUtf(
*/
dstLen--;
- result = (*encodingPtr->toUtfProc)(encodingPtr->clientData, src, srcLen,
+ result = encodingPtr->toUtfProc(encodingPtr->clientData, src, srcLen,
flags, statePtr, dst, dstLen, srcReadPtr, dstWrotePtr,
dstCharsPtr);
dst[*dstWrotePtr] = '\0';
@@ -1285,7 +1278,7 @@ Tcl_UtfToExternalDString(
{
char *dst;
Tcl_EncodingState state;
- Encoding *encodingPtr;
+ const Encoding *encodingPtr;
int flags, dstLen, result, soFar, srcRead, dstWrote, dstChars;
Tcl_DStringInit(dstPtr);
@@ -1304,7 +1297,7 @@ Tcl_UtfToExternalDString(
}
flags = TCL_ENCODING_START | TCL_ENCODING_END;
while (1) {
- result = (*encodingPtr->fromUtfProc)(encodingPtr->clientData, src,
+ result = encodingPtr->fromUtfProc(encodingPtr->clientData, src,
srcLen, flags, &state, dst, dstLen, &srcRead, &dstWrote,
&dstChars);
soFar = dst + dstWrote - Tcl_DStringValue(dstPtr);
@@ -1377,7 +1370,7 @@ Tcl_UtfToExternal(
* correspond to the bytes stored in the
* output buffer. */
{
- Encoding *encodingPtr;
+ const Encoding *encodingPtr;
int result, srcRead, dstWrote, dstChars;
Tcl_EncodingState state;
@@ -1406,7 +1399,7 @@ Tcl_UtfToExternal(
}
dstLen -= encodingPtr->nullSize;
- result = (*encodingPtr->fromUtfProc)(encodingPtr->clientData, src, srcLen,
+ result = encodingPtr->fromUtfProc(encodingPtr->clientData, src, srcLen,
flags, statePtr, dst, dstLen, srcReadPtr, dstWrotePtr,
dstCharsPtr);
if (encodingPtr->nullSize == 2) {
@@ -1434,7 +1427,7 @@ Tcl_UtfToExternal(
*
*---------------------------------------------------------------------------
*/
-
+#undef Tcl_FindExecutable
void
Tcl_FindExecutable(
const char *argv0) /* The value of the application's argv[0]
@@ -1453,9 +1446,9 @@ Tcl_FindExecutable(
* Open the file believed to hold data for the encoding, "name".
*
* Results:
- * Returns the readable Tcl_Channel from opening the file, or NULL if the
- * file could not be successfully opened. If NULL was returned, an error
- * message is left in interp's result object, unless interp was NULL.
+ * Returns the readable Tcl_Channel from opening the file, or NULL if the
+ * file could not be successfully opened. If NULL was returned, an error
+ * message is left in interp's result object, unless interp was NULL.
*
* Side effects:
* Channel may be opened. Information about the filesystem may be cached
@@ -1498,6 +1491,7 @@ OpenEncodingFileChannel(
}
if (!verified) {
const char *dirString = Tcl_GetString(directory);
+
for (i=0; i<numDirs && !verified; i++) {
if (strcmp(dirString, Tcl_GetString(dir[i])) == 0) {
verified = 1;
@@ -1550,7 +1544,8 @@ OpenEncodingFileChannel(
}
if ((NULL == chan) && (interp != NULL)) {
- Tcl_AppendResult(interp, "unknown encoding \"", name, "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "unknown encoding \"%s\"", name));
Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ENCODING", name, NULL);
}
Tcl_DecrRefCount(fileNameObj);
@@ -1624,7 +1619,9 @@ LoadEncodingFile(
break;
}
if ((encoding == NULL) && (interp != NULL)) {
- Tcl_AppendResult(interp, "invalid encoding file \"", name, "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "invalid encoding file \"%s\"", name));
+ Tcl_SetErrorCode(interp, "TCL", "LOOKUP", "ENCODING", name, NULL);
}
Tcl_Close(NULL, chan);
@@ -1663,11 +1660,11 @@ LoadTableEncoding(
Tcl_DString lineString;
Tcl_Obj *objPtr;
char *line;
- int i, hi, lo, numPages, symbol, fallback;
+ int i, hi, lo, numPages, symbol, fallback, len;
unsigned char used[256];
- unsigned int size;
+ unsigned size;
TableEncodingData *dataPtr;
- unsigned short *pageMemPtr;
+ unsigned short *pageMemPtr, *page;
Tcl_EncodingType encType;
/*
@@ -1714,7 +1711,7 @@ LoadTableEncoding(
#undef PAGESIZE
#define PAGESIZE (256 * sizeof(unsigned short))
- dataPtr = (TableEncodingData *) ckalloc(sizeof(TableEncodingData));
+ dataPtr = ckalloc(sizeof(TableEncodingData));
memset(dataPtr, 0, sizeof(TableEncodingData));
dataPtr->fallback = fallback;
@@ -1726,7 +1723,7 @@ LoadTableEncoding(
*/
size = 256 * sizeof(unsigned short *) + numPages * PAGESIZE;
- dataPtr->toUnicode = (unsigned short **) ckalloc(size);
+ dataPtr->toUnicode = ckalloc(size);
memset(dataPtr->toUnicode, 0, size);
pageMemPtr = (unsigned short *) (dataPtr->toUnicode + 256);
@@ -1734,7 +1731,7 @@ LoadTableEncoding(
Tcl_IncrRefCount(objPtr);
for (i = 0; i < numPages; i++) {
int ch;
- char *p;
+ const char *p;
Tcl_ReadChars(chan, objPtr, 3 + 16 * (16 * 4 + 1), 0);
p = Tcl_GetString(objPtr);
@@ -1784,29 +1781,26 @@ LoadTableEncoding(
}
}
size = 256 * sizeof(unsigned short *) + numPages * PAGESIZE;
- dataPtr->fromUnicode = (unsigned short **) ckalloc(size);
+ dataPtr->fromUnicode = ckalloc(size);
memset(dataPtr->fromUnicode, 0, size);
pageMemPtr = (unsigned short *) (dataPtr->fromUnicode + 256);
for (hi = 0; hi < 256; hi++) {
if (dataPtr->toUnicode[hi] == NULL) {
dataPtr->toUnicode[hi] = emptyPage;
- } else {
- for (lo = 0; lo < 256; lo++) {
- int ch;
-
- ch = dataPtr->toUnicode[hi][lo];
- if (ch != 0) {
- unsigned short *page;
-
- page = dataPtr->fromUnicode[ch >> 8];
- if (page == NULL) {
- page = pageMemPtr;
- pageMemPtr += 256;
- dataPtr->fromUnicode[ch >> 8] = page;
- }
- page[ch & 0xff] = (unsigned short) ((hi << 8) + lo);
+ continue;
+ }
+ for (lo = 0; lo < 256; lo++) {
+ int ch = dataPtr->toUnicode[hi][lo];
+
+ if (ch != 0) {
+ page = dataPtr->fromUnicode[ch >> 8];
+ if (page == NULL) {
+ page = pageMemPtr;
+ pageMemPtr += 256;
+ dataPtr->fromUnicode[ch >> 8] = page;
}
+ page[ch & 0xff] = (unsigned short) ((hi << 8) + lo);
}
}
}
@@ -1825,8 +1819,6 @@ LoadTableEncoding(
}
}
if (symbol) {
- unsigned short *page;
-
/*
* Make a special symbol encoding that not only maps the symbol
* characters from their Unicode code points down into page 0, but
@@ -1834,7 +1826,7 @@ LoadTableEncoding(
* is so that a symbol font can be used to display a simple string
* like "abcd" and have alpha, beta, chi, delta show up, rather than
* have "unknown" chars show up because strictly speaking the symbol
- * font doesn't have glyphs for those low ascii chars.
+ * font doesn't have glyphs for those low ASCII chars.
*/
page = dataPtr->fromUnicode[0];
@@ -1859,57 +1851,77 @@ LoadTableEncoding(
*/
Tcl_DStringInit(&lineString);
- do {
- int len;
+
+ /*
+ * Skip leading empty lines.
+ */
+
+ while ((len = Tcl_Gets(chan, &lineString)) == 0) {
+ /* empty body */
+ }
+ if (len < 0) {
+ goto doneParse;
+ }
+
+ /*
+ * Require that it starts with an 'R'.
+ */
+
+ line = Tcl_DStringValue(&lineString);
+ if (line[0] != 'R') {
+ goto doneParse;
+ }
+
+ /*
+ * Read lines from the encoding until EOF.
+ */
+
+ for (TclDStringClear(&lineString);
+ (len = Tcl_Gets(chan, &lineString)) >= 0;
+ TclDStringClear(&lineString)) {
+ const unsigned char *p;
+ int to, from;
/*
- * Skip leading empty lines.
+ * Skip short lines.
*/
- while ((len = Tcl_Gets(chan, &lineString)) == 0) {
- /* empty body */
+ if (len < 5) {
+ continue;
}
- if (len < 0) {
- break;
- }
- line = Tcl_DStringValue(&lineString);
- if (line[0] != 'R') {
- break;
- }
- for (Tcl_DStringSetLength(&lineString, 0);
- (len = Tcl_Gets(chan, &lineString)) >= 0;
- Tcl_DStringSetLength(&lineString, 0)) {
- unsigned char* p;
- int to, from;
+ /*
+ * Parse the line as a sequence of hex digits.
+ */
- if (len < 5) {
- continue;
- }
- p = (unsigned char*) Tcl_DStringValue(&lineString);
- to = (staticHex[p[0]] << 12) + (staticHex[p[1]] << 8)
+ p = (const unsigned char *) Tcl_DStringValue(&lineString);
+ to = (staticHex[p[0]] << 12) + (staticHex[p[1]] << 8)
+ + (staticHex[p[2]] << 4) + staticHex[p[3]];
+ if (to == 0) {
+ continue;
+ }
+ for (p += 5, len -= 5; len >= 0 && *p; p += 5, len -= 5) {
+ from = (staticHex[p[0]] << 12) + (staticHex[p[1]] << 8)
+ (staticHex[p[2]] << 4) + staticHex[p[3]];
- if (to == 0) {
- continue;
- }
- for (p += 5, len -= 5; len >= 0 && *p; p += 5, len -= 5) {
- from = (staticHex[p[0]] << 12) + (staticHex[p[1]] << 8)
- + (staticHex[p[2]] << 4) + staticHex[p[3]];
- if (from == 0) {
- continue;
- }
- dataPtr->fromUnicode[from >> 8][from & 0xff] = to;
+ if (from == 0) {
+ continue;
}
+ dataPtr->fromUnicode[from >> 8][from & 0xff] = to;
}
- } while (0);
+ }
+ doneParse:
Tcl_DStringFree(&lineString);
+ /*
+ * Package everything into an encoding structure.
+ */
+
encType.encodingName = name;
encType.toUtfProc = TableToUtfProc;
encType.fromUtfProc = TableFromUtfProc;
encType.freeProc = TableFreeProc;
encType.nullSize = (type == ENCODING_DOUBLEBYTE) ? 2 : 1;
- encType.clientData = (ClientData) dataPtr;
+ encType.clientData = dataPtr;
return Tcl_CreateEncoding(&encType);
}
@@ -1942,7 +1954,7 @@ LoadEscapeEncoding(
Tcl_Channel chan) /* File containing new encoding. */
{
int i;
- unsigned int size;
+ unsigned size;
Tcl_DString escapeData;
char init[16], final[16];
EscapeEncodingData *dataPtr;
@@ -1964,6 +1976,7 @@ LoadEscapeEncoding(
}
line = Tcl_DStringValue(&lineString);
if (Tcl_SplitList(NULL, line, &argc, &argv) != TCL_OK) {
+ Tcl_DStringFree(&lineString);
continue;
}
if (argc >= 2) {
@@ -1991,8 +2004,8 @@ LoadEscapeEncoding(
*/
e = (Encoding *) Tcl_GetEncoding(NULL, est.name);
- if (e && e->toUtfProc != TableToUtfProc &&
- e->toUtfProc != Iso88591ToUtfProc) {
+ if ((e != NULL) && (e->toUtfProc != TableToUtfProc)
+ && (e->toUtfProc != Iso88591ToUtfProc)) {
Tcl_FreeEncoding((Tcl_Encoding) e);
e = NULL;
}
@@ -2000,17 +2013,17 @@ LoadEscapeEncoding(
Tcl_DStringAppend(&escapeData, (char *) &est, sizeof(est));
}
}
- ckfree((char *) argv);
+ ckfree(argv);
Tcl_DStringFree(&lineString);
}
size = sizeof(EscapeEncodingData) - sizeof(EscapeSubTable)
+ Tcl_DStringLength(&escapeData);
- dataPtr = (EscapeEncodingData *) ckalloc(size);
+ dataPtr = ckalloc(size);
dataPtr->initLen = strlen(init);
- strcpy(dataPtr->init, init);
+ memcpy(dataPtr->init, init, (unsigned) dataPtr->initLen + 1);
dataPtr->finalLen = strlen(final);
- strcpy(dataPtr->final, final);
+ memcpy(dataPtr->final, final, (unsigned) dataPtr->finalLen + 1);
dataPtr->numSubTables =
Tcl_DStringLength(&escapeData) / sizeof(EscapeSubTable);
memcpy(dataPtr->subTables, Tcl_DStringValue(&escapeData),
@@ -2028,12 +2041,16 @@ LoadEscapeEncoding(
dataPtr->prefixBytes[UCHAR(dataPtr->final[0])] = 1;
}
+ /*
+ * Package everything into an encoding structure.
+ */
+
type.encodingName = name;
type.toUtfProc = EscapeToUtfProc;
type.fromUtfProc = EscapeFromUtfProc;
type.freeProc = EscapeFreeProc;
type.nullSize = 1;
- type.clientData = (ClientData) dataPtr;
+ type.clientData = dataPtr;
return Tcl_CreateEncoding(&type);
}
@@ -2165,6 +2182,7 @@ UtfIntToUtfExtProc(
*
*-------------------------------------------------------------------------
*/
+
static int
UtfExtToUtfIntProc(
ClientData clientData, /* Not used. */
@@ -2245,7 +2263,7 @@ UtfToUtfProc(
* versa. */
{
const char *srcStart, *srcEnd, *srcClose;
- char *dstStart, *dstEnd;
+ const char *dstStart, *dstEnd;
int result, numChars;
Tcl_UniChar ch;
@@ -2356,7 +2374,7 @@ UnicodeToUtfProc(
* output buffer. */
{
const char *srcStart, *srcEnd;
- char *dstEnd, *dstStart;
+ const char *dstEnd, *dstStart;
int result, numChars;
Tcl_UniChar ch;
@@ -2378,10 +2396,12 @@ UnicodeToUtfProc(
result = TCL_CONVERT_NOSPACE;
break;
}
+
/*
- * Special case for 1-byte utf chars for speed. Make sure we
- * work with Tcl_UniChar-size data.
+ * Special case for 1-byte utf chars for speed. Make sure we work with
+ * Tcl_UniChar-size data.
*/
+
ch = *(Tcl_UniChar *)src;
if (ch && ch < 0x80) {
*dst++ = (ch & 0xFF);
@@ -2471,11 +2491,13 @@ UtfToUnicodeProc(
break;
}
src += TclUtfToUniChar(src, &ch);
+
/*
- * Need to handle this in a way that won't cause misalignment
- * by casting dst to a Tcl_UniChar. [Bug 1122671]
+ * Need to handle this in a way that won't cause misalignment by
+ * casting dst to a Tcl_UniChar. [Bug 1122671]
* XXX: This hard-codes the assumed size of Tcl_UniChar as 2.
*/
+
#ifdef WORDS_BIGENDIAN
*dst++ = (ch >> 8);
*dst++ = (ch & 0xFF);
@@ -2536,12 +2558,12 @@ TableToUtfProc(
* output buffer. */
{
const char *srcStart, *srcEnd;
- char *dstEnd, *dstStart, *prefixBytes;
+ const char *dstEnd, *dstStart, *prefixBytes;
int result, byte, numChars;
Tcl_UniChar ch;
- unsigned short **toUnicode;
- unsigned short *pageZero;
- TableEncodingData *dataPtr;
+ const unsigned short *const *toUnicode;
+ const unsigned short *pageZero;
+ TableEncodingData *dataPtr = clientData;
srcStart = src;
srcEnd = src + srcLen;
@@ -2549,8 +2571,7 @@ TableToUtfProc(
dstStart = dst;
dstEnd = dst + dstLen - TCL_UTF_MAX;
- dataPtr = (TableEncodingData *) clientData;
- toUnicode = dataPtr->toUnicode;
+ toUnicode = (const unsigned short *const *) dataPtr->toUnicode;
prefixBytes = dataPtr->prefixBytes;
pageZero = toUnicode[0];
@@ -2582,9 +2603,11 @@ TableToUtfProc(
}
ch = (Tcl_UniChar) byte;
}
+
/*
* Special case for 1-byte utf chars for speed.
*/
+
if (ch && ch < 0x80) {
*dst++ = (char) ch;
} else {
@@ -2645,17 +2668,16 @@ TableFromUtfProc(
* output buffer. */
{
const char *srcStart, *srcEnd, *srcClose;
- char *dstStart, *dstEnd, *prefixBytes;
+ const char *dstStart, *dstEnd, *prefixBytes;
Tcl_UniChar ch;
int result, len, word, numChars;
- TableEncodingData *dataPtr;
- unsigned short **fromUnicode;
+ TableEncodingData *dataPtr = clientData;
+ const unsigned short *const *fromUnicode;
result = TCL_OK;
- dataPtr = (TableEncodingData *) clientData;
prefixBytes = dataPtr->prefixBytes;
- fromUnicode = dataPtr->fromUnicode;
+ fromUnicode = (const unsigned short *const *) dataPtr->fromUnicode;
srcStart = src;
srcEnd = src + srcLen;
@@ -2767,7 +2789,7 @@ Iso88591ToUtfProc(
* output buffer. */
{
const char *srcStart, *srcEnd;
- char *dstEnd, *dstStart;
+ const char *dstEnd, *dstStart;
int result, numChars;
srcStart = src;
@@ -2785,9 +2807,11 @@ Iso88591ToUtfProc(
break;
}
ch = (Tcl_UniChar) *((unsigned char *) src);
+
/*
* Special case for 1-byte utf chars for speed.
*/
+
if (ch && ch < 0x80) {
*dst++ = (char) ch;
} else {
@@ -2846,7 +2870,7 @@ Iso88591FromUtfProc(
* output buffer. */
{
const char *srcStart, *srcEnd, *srcClose;
- char *dstStart, *dstEnd;
+ const char *dstStart, *dstEnd;
int result, numChars;
result = TCL_OK;
@@ -2929,16 +2953,15 @@ TableFreeProc(
ClientData clientData) /* TableEncodingData that specifies
* encoding. */
{
- TableEncodingData *dataPtr;
+ TableEncodingData *dataPtr = clientData;
/*
* Make sure we aren't freeing twice on shutdown. [Bug 219314]
*/
- dataPtr = (TableEncodingData *) clientData;
- ckfree((char *) dataPtr->toUnicode);
- ckfree((char *) dataPtr->fromUnicode);
- ckfree((char *) dataPtr);
+ ckfree(dataPtr->toUnicode);
+ ckfree(dataPtr->fromUnicode);
+ ckfree(dataPtr);
}
/*
@@ -2986,20 +3009,16 @@ EscapeToUtfProc(
* correspond to the bytes stored in the
* output buffer. */
{
- EscapeEncodingData *dataPtr;
- char *prefixBytes, *tablePrefixBytes;
- unsigned short **tableToUnicode;
- Encoding *encodingPtr;
+ EscapeEncodingData *dataPtr = clientData;
+ const char *prefixBytes, *tablePrefixBytes, *srcStart, *srcEnd;
+ const unsigned short *const *tableToUnicode;
+ const Encoding *encodingPtr;
int state, result, numChars;
- const char *srcStart, *srcEnd;
- char *dstStart, *dstEnd;
+ const char *dstStart, *dstEnd;
result = TCL_OK;
-
tablePrefixBytes = NULL; /* lint. */
tableToUnicode = NULL; /* lint. */
-
- dataPtr = (EscapeEncodingData *) clientData;
prefixBytes = dataPtr->prefixBytes;
encodingPtr = NULL;
@@ -3023,9 +3042,9 @@ EscapeToUtfProc(
}
byte = *((unsigned char *) src);
if (prefixBytes[byte]) {
- unsigned int left, len, longest;
+ unsigned left, len, longest;
int checked, i;
- EscapeSubTable *subTablePtr;
+ const EscapeSubTable *subTablePtr;
/*
* Saw the beginning of an escape sequence.
@@ -3123,9 +3142,10 @@ EscapeToUtfProc(
TableEncodingData *tableDataPtr;
encodingPtr = GetTableEncoding(dataPtr, state);
- tableDataPtr = (TableEncodingData *) encodingPtr->clientData;
+ tableDataPtr = encodingPtr->clientData;
tablePrefixBytes = tableDataPtr->prefixBytes;
- tableToUnicode = tableDataPtr->toUnicode;
+ tableToUnicode = (const unsigned short *const*)
+ tableDataPtr->toUnicode;
}
if (tablePrefixBytes[byte]) {
@@ -3200,19 +3220,17 @@ EscapeFromUtfProc(
* correspond to the bytes stored in the
* output buffer. */
{
- EscapeEncodingData *dataPtr;
- Encoding *encodingPtr;
+ EscapeEncodingData *dataPtr = clientData;
+ const Encoding *encodingPtr;
const char *srcStart, *srcEnd, *srcClose;
- char *dstStart, *dstEnd;
+ const char *dstStart, *dstEnd;
int state, result, numChars;
- TableEncodingData *tableDataPtr;
- char *tablePrefixBytes;
- unsigned short **tableFromUnicode;
+ const TableEncodingData *tableDataPtr;
+ const char *tablePrefixBytes;
+ const unsigned short *const *tableFromUnicode;
result = TCL_OK;
- dataPtr = (EscapeEncodingData *) clientData;
-
srcStart = src;
srcEnd = src + srcLen;
srcClose = srcEnd;
@@ -3224,7 +3242,7 @@ EscapeFromUtfProc(
dstEnd = dst + dstLen - 1;
/*
- * RFC1468 states that the text starts in ASCII, and switches to Japanese
+ * RFC 1468 states that the text starts in ASCII, and switches to Japanese
* characters, and that the text must end in ASCII. [Patch 474358]
*/
@@ -3242,12 +3260,13 @@ EscapeFromUtfProc(
}
encodingPtr = GetTableEncoding(dataPtr, state);
- tableDataPtr = (TableEncodingData *) encodingPtr->clientData;
+ tableDataPtr = encodingPtr->clientData;
tablePrefixBytes = tableDataPtr->prefixBytes;
- tableFromUnicode = tableDataPtr->fromUnicode;
+ tableFromUnicode = (const unsigned short *const *)
+ tableDataPtr->fromUnicode;
for (numChars = 0; src < srcEnd; numChars++) {
- unsigned int len;
+ unsigned len;
int word;
Tcl_UniChar ch;
@@ -3265,13 +3284,13 @@ EscapeFromUtfProc(
if ((word == 0) && (ch != 0)) {
int oldState;
- EscapeSubTable *subTablePtr;
+ const EscapeSubTable *subTablePtr;
oldState = state;
for (state = 0; state < dataPtr->numSubTables; state++) {
encodingPtr = GetTableEncoding(dataPtr, state);
- tableDataPtr = (TableEncodingData *) encodingPtr->clientData;
- word = tableDataPtr->fromUnicode[(ch >> 8)][ch & 0xff];
+ tableDataPtr = encodingPtr->clientData;
+ word = tableDataPtr->fromUnicode[(ch >> 8)][ch & 0xff];
if (word != 0) {
break;
}
@@ -3284,12 +3303,13 @@ EscapeFromUtfProc(
break;
}
encodingPtr = GetTableEncoding(dataPtr, state);
- tableDataPtr = (TableEncodingData *) encodingPtr->clientData;
+ tableDataPtr = encodingPtr->clientData;
word = tableDataPtr->fallback;
}
- tablePrefixBytes = tableDataPtr->prefixBytes;
- tableFromUnicode = tableDataPtr->fromUnicode;
+ tablePrefixBytes = (const char *) tableDataPtr->prefixBytes;
+ tableFromUnicode = (const unsigned short *const *)
+ tableDataPtr->fromUnicode;
/*
* The state variable has the value of oldState when word is 0.
@@ -3337,22 +3357,22 @@ EscapeFromUtfProc(
}
if ((result == TCL_OK) && (flags & TCL_ENCODING_END)) {
- unsigned int len = dataPtr->subTables[0].sequenceLen;
+ unsigned len = dataPtr->subTables[0].sequenceLen;
+
/*
- * Certain encodings like iso2022-jp need to write
- * an escape sequence after all characters have
- * been converted. This logic checks that enough
- * room is available in the buffer for the escape bytes.
- * The TCL_ENCODING_END flag is cleared after a final
- * escape sequence has been added to the buffer so
- * that another call to this method does not attempt
- * to append escape bytes a second time.
+ * Certain encodings like iso2022-jp need to write an escape sequence
+ * after all characters have been converted. This logic checks that
+ * enough room is available in the buffer for the escape bytes. The
+ * TCL_ENCODING_END flag is cleared after a final escape sequence has
+ * been added to the buffer so that another call to this method does
+ * not attempt to append escape bytes a second time.
*/
+
if ((dst + dataPtr->finalLen + (state?len:0)) > dstEnd) {
result = TCL_CONVERT_NOSPACE;
} else {
if (state) {
- memcpy(dst, dataPtr->subTables[0].sequence, (size_t) len);
+ memcpy(dst, dataPtr->subTables[0].sequence, len);
dst += len;
}
memcpy(dst, dataPtr->final, (size_t) dataPtr->finalLen);
@@ -3390,33 +3410,33 @@ EscapeFreeProc(
ClientData clientData) /* EscapeEncodingData that specifies
* encoding. */
{
- EscapeEncodingData *dataPtr;
+ EscapeEncodingData *dataPtr = clientData;
EscapeSubTable *subTablePtr;
int i;
- dataPtr = (EscapeEncodingData *) clientData;
if (dataPtr == NULL) {
return;
}
+
/*
- * The subTables should be freed recursively in normal operation but not
- * during TclFinalizeEncodingSubsystem because they are also present as a
- * weak reference in the toplevel encodingTable (ie they don't have a +1
- * refcount for this), and unpredictable nuking order could remove them
- * from under the following loop's feet [Bug 2891556].
- *
- * The encodingsInitialized flag, being reset on entry to TFES, can serve
- * as a "not in finalization" test.
+ * The subTables should be freed recursively in normal operation but not
+ * during TclFinalizeEncodingSubsystem because they are also present as a
+ * weak reference in the toplevel encodingTable (i.e., they don't have a
+ * +1 refcount for this), and unpredictable nuking order could remove them
+ * from under the following loop's feet. [Bug 2891556]
+ *
+ * The encodingsInitialized flag, being reset on entry to TFES, can serve
+ * as a "not in finalization" test.
*/
- if (encodingsInitialized)
- {
- subTablePtr = dataPtr->subTables;
- for (i = 0; i < dataPtr->numSubTables; i++) {
- FreeEncoding((Tcl_Encoding) subTablePtr->encodingPtr);
- subTablePtr++;
- }
+
+ if (encodingsInitialized) {
+ subTablePtr = dataPtr->subTables;
+ for (i = 0; i < dataPtr->numSubTables; i++) {
+ FreeEncoding((Tcl_Encoding) subTablePtr->encodingPtr);
+ subTablePtr++;
}
- ckfree((char *) dataPtr);
+ }
+ ckfree(dataPtr);
}
/*
@@ -3444,11 +3464,8 @@ GetTableEncoding(
EscapeEncodingData *dataPtr,/* Contains names of encodings. */
int state) /* Index in dataPtr of desired Encoding. */
{
- EscapeSubTable *subTablePtr;
- Encoding *encodingPtr;
-
- subTablePtr = &dataPtr->subTables[state];
- encodingPtr = subTablePtr->encodingPtr;
+ EscapeSubTable *subTablePtr = &dataPtr->subTables[state];
+ Encoding *encodingPtr = subTablePtr->encodingPtr;
if (encodingPtr == NULL) {
encodingPtr = (Encoding *) Tcl_GetEncoding(NULL, subTablePtr->name);
@@ -3523,43 +3540,43 @@ InitializeEncodingSearchPath(
int *lengthPtr,
Tcl_Encoding *encodingPtr)
{
- char *bytes;
+ const char *bytes;
int i, numDirs, numBytes;
- Tcl_Obj *libPath, *encodingObj, *searchPath;
+ Tcl_Obj *libPathObj, *encodingObj, *searchPathObj;
TclNewLiteralStringObj(encodingObj, "encoding");
- TclNewObj(searchPath);
+ TclNewObj(searchPathObj);
Tcl_IncrRefCount(encodingObj);
- Tcl_IncrRefCount(searchPath);
- libPath = TclGetLibraryPath();
- Tcl_IncrRefCount(libPath);
- Tcl_ListObjLength(NULL, libPath, &numDirs);
+ Tcl_IncrRefCount(searchPathObj);
+ libPathObj = TclGetLibraryPath();
+ Tcl_IncrRefCount(libPathObj);
+ Tcl_ListObjLength(NULL, libPathObj, &numDirs);
for (i = 0; i < numDirs; i++) {
- Tcl_Obj *directory, *path;
+ Tcl_Obj *directoryObj, *pathObj;
Tcl_StatBuf stat;
- Tcl_ListObjIndex(NULL, libPath, i, &directory);
- path = Tcl_FSJoinToPath(directory, 1, &encodingObj);
- Tcl_IncrRefCount(path);
- if ((0 == Tcl_FSStat(path, &stat)) && S_ISDIR(stat.st_mode)) {
- Tcl_ListObjAppendElement(NULL, searchPath, path);
+ Tcl_ListObjIndex(NULL, libPathObj, i, &directoryObj);
+ pathObj = Tcl_FSJoinToPath(directoryObj, 1, &encodingObj);
+ Tcl_IncrRefCount(pathObj);
+ if ((0 == Tcl_FSStat(pathObj, &stat)) && S_ISDIR(stat.st_mode)) {
+ Tcl_ListObjAppendElement(NULL, searchPathObj, pathObj);
}
- Tcl_DecrRefCount(path);
+ Tcl_DecrRefCount(pathObj);
}
- Tcl_DecrRefCount(libPath);
+ Tcl_DecrRefCount(libPathObj);
Tcl_DecrRefCount(encodingObj);
*encodingPtr = libraryPath.encoding;
if (*encodingPtr) {
((Encoding *)(*encodingPtr))->refCount++;
}
- bytes = Tcl_GetStringFromObj(searchPath, &numBytes);
+ bytes = Tcl_GetStringFromObj(searchPathObj, &numBytes);
*lengthPtr = numBytes;
- *valuePtr = ckalloc((unsigned int) numBytes + 1);
+ *valuePtr = ckalloc(numBytes + 1);
memcpy(*valuePtr, bytes, (size_t) numBytes + 1);
- Tcl_DecrRefCount(searchPath);
+ Tcl_DecrRefCount(searchPathObj);
}
/*
@@ -3569,4 +3586,3 @@ InitializeEncodingSearchPath(
* fill-column: 78
* End:
*/
-
generated by cgit v0.12 at 2024-11-21 18:39:02 (GMT)