summaryrefslogtreecommitdiffstats
path: root/generic/tkTextIndex.c
diff options
context:
space:
mode:
Diffstat (limited to 'generic/tkTextIndex.c')
-rw-r--r--generic/tkTextIndex.c151
1 files changed, 76 insertions, 75 deletions
diff --git a/generic/tkTextIndex.c b/generic/tkTextIndex.c
index a9b0bed..25888d8 100644
--- a/generic/tkTextIndex.c
+++ b/generic/tkTextIndex.c
@@ -33,12 +33,12 @@
* Forward declarations for functions defined later in this file:
*/
-static CONST char * ForwBack(TkText *textPtr, CONST char *string,
+static const char * ForwBack(TkText *textPtr, const char *string,
TkTextIndex *indexPtr);
-static CONST char * StartEnd(TkText *textPtr, CONST char *string,
+static const char * StartEnd(TkText *textPtr, const char *string,
TkTextIndex *indexPtr);
static int GetIndex(Tcl_Interp *interp, TkSharedText *sharedPtr,
- TkText *textPtr, CONST char *string,
+ TkText *textPtr, const char *string,
TkTextIndex *indexPtr, int *canCachePtr);
/*
@@ -61,39 +61,41 @@ static void UpdateStringOfTextIndex(Tcl_Obj *objPtr);
#define GET_INDEXEPOCH(objPtr) \
(PTR2INT((objPtr)->internalRep.twoPtrValue.ptr2))
#define SET_TEXTINDEX(objPtr, indexPtr) \
- ((objPtr)->internalRep.twoPtrValue.ptr1 = (VOID *) (indexPtr))
+ ((objPtr)->internalRep.twoPtrValue.ptr1 = (void *) (indexPtr))
#define SET_INDEXEPOCH(objPtr, epoch) \
((objPtr)->internalRep.twoPtrValue.ptr2 = INT2PTR(epoch))
-
+
/*
* Define the 'textindex' object type, which Tk uses to represent indices in
* text widgets internally.
*/
-Tcl_ObjType tkTextIndexType = {
+const Tcl_ObjType tkTextIndexType = {
"textindex", /* name */
FreeTextIndexInternalRep, /* freeIntRepProc */
DupTextIndexInternalRep, /* dupIntRepProc */
NULL, /* updateStringProc */
SetTextIndexFromAny /* setFromAnyProc */
};
-
+
static void
FreeTextIndexInternalRep(
Tcl_Obj *indexObjPtr) /* TextIndex object with internal rep to
* free. */
{
TkTextIndex *indexPtr = GET_TEXTINDEX(indexObjPtr);
+
if (indexPtr->textPtr != NULL) {
if (--indexPtr->textPtr->refCount == 0) {
/*
* The text widget has been deleted and we need to free it now.
*/
- ckfree((char *) (indexPtr->textPtr));
+ ckfree(indexPtr->textPtr);
}
}
- ckfree((char *) indexPtr);
+ ckfree(indexPtr);
+ indexObjPtr->typePtr = NULL;
}
static void
@@ -104,7 +106,7 @@ DupTextIndexInternalRep(
int epoch;
TkTextIndex *dupIndexPtr, *indexPtr;
- dupIndexPtr = (TkTextIndex *) ckalloc(sizeof(TkTextIndex));
+ dupIndexPtr = ckalloc(sizeof(TkTextIndex));
indexPtr = GET_TEXTINDEX(srcPtr);
epoch = GET_INDEXEPOCH(srcPtr);
@@ -119,7 +121,7 @@ DupTextIndexInternalRep(
SET_INDEXEPOCH(copyPtr, epoch);
copyPtr->typePtr = &tkTextIndexType;
}
-
+
/*
* This will not be called except by TkTextNewIndexObj below. This is because
* if a TkTextIndex is no longer valid, it is not possible to regenerate the
@@ -132,12 +134,11 @@ UpdateStringOfTextIndex(
{
char buffer[TK_POS_CHARS];
register int len;
-
- CONST TkTextIndex *indexPtr = GET_TEXTINDEX(objPtr);
+ const TkTextIndex *indexPtr = GET_TEXTINDEX(objPtr);
len = TkTextPrintIndex(indexPtr->textPtr, indexPtr, buffer);
- objPtr->bytes = ckalloc((unsigned) len + 1);
+ objPtr->bytes = ckalloc(len + 1);
strcpy(objPtr->bytes, buffer);
objPtr->length = len;
}
@@ -147,9 +148,10 @@ SetTextIndexFromAny(
Tcl_Interp *interp, /* Used for error reporting if not NULL. */
Tcl_Obj *objPtr) /* The object to convert. */
{
- Tcl_AppendToObj(Tcl_GetObjResult(interp),
- "can't convert value to textindex except via TkTextGetIndexFromObj API",
- -1);
+ Tcl_SetObjResult(interp, Tcl_NewStringObj(
+ "can't convert value to textindex except via"
+ " TkTextGetIndexFromObj API", -1));
+ Tcl_SetErrorCode(interp, "TK", "API_ABUSE", NULL);
return TCL_ERROR;
}
@@ -183,9 +185,9 @@ MakeObjIndex(
TkText *textPtr, /* Information about text widget. */
Tcl_Obj *objPtr, /* Object containing description of
* position. */
- CONST TkTextIndex *origPtr) /* Pointer to index. */
+ const TkTextIndex *origPtr) /* Pointer to index. */
{
- TkTextIndex *indexPtr = (TkTextIndex *) ckalloc(sizeof(TkTextIndex));
+ TkTextIndex *indexPtr = ckalloc(sizeof(TkTextIndex));
indexPtr->tree = origPtr->tree;
indexPtr->linePtr = origPtr->linePtr;
@@ -202,8 +204,8 @@ MakeObjIndex(
}
return indexPtr;
}
-
-CONST TkTextIndex *
+
+const TkTextIndex *
TkTextGetIndexFromObj(
Tcl_Interp *interp, /* Use this for error reporting. */
TkText *textPtr, /* Information about text widget. */
@@ -242,8 +244,8 @@ TkTextGetIndexFromObj(
if (objPtr->bytes == NULL) {
objPtr->typePtr->updateStringProc(objPtr);
}
- if ((objPtr->typePtr->freeIntRepProc) != NULL) {
- (*objPtr->typePtr->freeIntRepProc)(objPtr);
+ if (objPtr->typePtr->freeIntRepProc != NULL) {
+ objPtr->typePtr->freeIntRepProc(objPtr);
}
}
@@ -271,7 +273,7 @@ TkTextGetIndexFromObj(
Tcl_Obj *
TkTextNewIndexObj(
TkText *textPtr, /* Text widget for this index */
- CONST TkTextIndex *indexPtr)/* Pointer to index. */
+ const TkTextIndex *indexPtr)/* Pointer to index. */
{
Tcl_Obj *retVal;
@@ -385,9 +387,9 @@ TkTextMakePixelIndex(
TkTextIndex *
TkTextMakeByteIndex(
- TkTextBTree tree, /* Tree that lineIndex and byteIndex refer
+ TkTextBTree tree, /* Tree that lineIndex and byteIndex refer
* to. */
- CONST TkText *textPtr,
+ const TkText *textPtr,
int lineIndex, /* Index of desired line (0 means first line
* of text). */
int byteIndex, /* Byte index of desired character. */
@@ -395,7 +397,7 @@ TkTextMakeByteIndex(
{
TkTextSegment *segPtr;
int index;
- CONST char *p, *start;
+ const char *p, *start;
Tcl_UniChar ch;
indexPtr->tree = tree;
@@ -439,7 +441,7 @@ TkTextMakeByteIndex(
if ((byteIndex > index) && (segPtr->typePtr == &tkTextCharType)) {
/*
* Prevent UTF-8 character from being split up by ensuring
- * that byteIndex falls on a character boundary. If index
+ * that byteIndex falls on a character boundary. If the index
* falls in the middle of a UTF-8 character, it will be
* adjusted to the end of that UTF-8 character.
*/
@@ -573,7 +575,7 @@ TkTextMakeCharIndex(
TkTextSegment *
TkTextIndexToSeg(
- CONST TkTextIndex *indexPtr,/* Text index. */
+ const TkTextIndex *indexPtr,/* Text index. */
int *offsetPtr) /* Where to store offset within segment, or
* NULL if offset isn't wanted. */
{
@@ -611,10 +613,10 @@ TkTextIndexToSeg(
int
TkTextSegToOffset(
- CONST TkTextSegment *segPtr,/* Segment whose offset is desired. */
- CONST TkTextLine *linePtr) /* Line containing segPtr. */
+ const TkTextSegment *segPtr,/* Segment whose offset is desired. */
+ const TkTextLine *linePtr) /* Line containing segPtr. */
{
- CONST TkTextSegment *segPtr2;
+ const TkTextSegment *segPtr2;
int offset = 0;
for (segPtr2 = linePtr->segPtr; segPtr2 != segPtr;
@@ -705,7 +707,7 @@ int
TkTextGetIndex(
Tcl_Interp *interp, /* Use this for error reporting. */
TkText *textPtr, /* Information about text widget. */
- CONST char *string, /* Textual description of position. */
+ const char *string, /* Textual description of position. */
TkTextIndex *indexPtr) /* Index structure to fill in. */
{
return GetIndex(interp, NULL, textPtr, string, indexPtr, NULL);
@@ -739,7 +741,7 @@ GetIndex(
Tcl_Interp *interp, /* Use this for error reporting. */
TkSharedText *sharedPtr,
TkText *textPtr, /* Information about text widget. */
- CONST char *string, /* Textual description of position. */
+ const char *string, /* Textual description of position. */
TkTextIndex *indexPtr, /* Index structure to fill in. */
int *canCachePtr) /* Pointer to integer to store whether we can
* cache the index (or NULL). */
@@ -748,7 +750,7 @@ GetIndex(
TkTextIndex first, last;
int wantLast, result;
char c;
- CONST char *cp;
+ const char *cp;
Tcl_DString copy;
int canCache = 0;
@@ -790,7 +792,7 @@ GetIndex(
TkTextSearch search;
TkTextTag *tagPtr;
Tcl_HashEntry *hPtr = NULL;
- CONST char *tagName;
+ const char *tagName;
if ((p[1] == 'f') && (strncmp(p+1, "first", 5) == 0)) {
wantLast = 0;
@@ -815,7 +817,7 @@ GetIndex(
hPtr = Tcl_FindHashEntry(&sharedPtr->tagTable, tagName);
*p = '.';
if (hPtr != NULL) {
- tagPtr = (TkTextTag *) Tcl_GetHashValue(hPtr);
+ tagPtr = Tcl_GetHashValue(hPtr);
}
}
@@ -830,13 +832,14 @@ GetIndex(
if (!TkBTreeCharTagged(&first, tagPtr) && !TkBTreeNextTag(&search)) {
if (tagPtr == textPtr->selTagPtr) {
tagName = "sel";
- } else {
+ } else if (hPtr != NULL) {
tagName = Tcl_GetHashKey(&sharedPtr->tagTable, hPtr);
}
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp,
- "text doesn't contain any characters tagged with \"",
- tagName, "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf(
+ "text doesn't contain any characters tagged with \"%s\"",
+ tagName));
+ Tcl_SetErrorCode(interp, "TK", "LOOKUP", "TEXT_INDEX", tagName,
+ NULL);
Tcl_DStringFree(&copy);
return TCL_ERROR;
}
@@ -999,8 +1002,8 @@ GetIndex(
error:
Tcl_DStringFree(&copy);
- Tcl_ResetResult(interp);
- Tcl_AppendResult(interp, "bad text index \"", string, "\"", NULL);
+ Tcl_SetObjResult(interp, Tcl_ObjPrintf("bad text index \"%s\"", string));
+ Tcl_SetErrorCode(interp, "TK", "TEXT", "BAD_INDEX", NULL);
return TCL_ERROR;
}
@@ -1024,8 +1027,8 @@ GetIndex(
int
TkTextPrintIndex(
- CONST TkText *textPtr,
- CONST TkTextIndex *indexPtr,/* Pointer to index. */
+ const TkText *textPtr,
+ const TkTextIndex *indexPtr,/* Pointer to index. */
char *string) /* Place to store the position. Must have at
* least TK_POS_CHARS characters. */
{
@@ -1088,8 +1091,8 @@ TkTextPrintIndex(
int
TkTextIndexCmp(
- CONST TkTextIndex*index1Ptr,/* First index. */
- CONST TkTextIndex*index2Ptr)/* Second index. */
+ const TkTextIndex*index1Ptr,/* First index. */
+ const TkTextIndex*index2Ptr)/* Second index. */
{
int line1, line2;
@@ -1141,15 +1144,15 @@ TkTextIndexCmp(
*---------------------------------------------------------------------------
*/
-static CONST char *
+static const char *
ForwBack(
TkText *textPtr, /* Information about text widget. */
- CONST char *string, /* String to parse for additional info about
+ const char *string, /* String to parse for additional info about
* modifier (count and units). Points to "+"
* or "-" that starts modifier. */
TkTextIndex *indexPtr) /* Index to update as specified in string. */
{
- register CONST char *p, *units;
+ register const char *p, *units;
char *end;
int count, lineIndex, modifier;
size_t length;
@@ -1389,8 +1392,8 @@ ForwBack(
int
TkTextIndexForwBytes(
- CONST TkText *textPtr,
- CONST TkTextIndex *srcPtr, /* Source index. */
+ const TkText *textPtr,
+ const TkTextIndex *srcPtr, /* Source index. */
int byteCount, /* How many bytes forward to move. May be
* negative. */
TkTextIndex *dstPtr) /* Destination index: gets modified. */
@@ -1461,8 +1464,8 @@ TkTextIndexForwBytes(
void
TkTextIndexForwChars(
- CONST TkText *textPtr, /* Overall information about text widget. */
- CONST TkTextIndex *srcPtr, /* Source index. */
+ const TkText *textPtr, /* Overall information about text widget. */
+ const TkTextIndex *srcPtr, /* Source index. */
int charCount, /* How many characters forward to move. May
* be negative. */
TkTextIndex *dstPtr, /* Destination index: gets modified. */
@@ -1482,8 +1485,7 @@ TkTextIndexForwChars(
return;
}
if (checkElided) {
- infoPtr = (TkTextElideInfo *)
- ckalloc((unsigned) sizeof(TkTextElideInfo));
+ infoPtr = ckalloc(sizeof(TkTextElideInfo));
elide = TkTextIsElided(textPtr, srcPtr, infoPtr);
}
@@ -1611,7 +1613,7 @@ TkTextIndexForwChars(
forwardCharDone:
if (infoPtr != NULL) {
TkTextFreeElideInfo(infoPtr);
- ckfree((char *) infoPtr);
+ ckfree(infoPtr);
}
}
@@ -1641,11 +1643,11 @@ TkTextIndexForwChars(
int
TkTextIndexCount(
- CONST TkText *textPtr, /* Overall information about text widget. */
- CONST TkTextIndex *indexPtr1,
+ const TkText *textPtr, /* Overall information about text widget. */
+ const TkTextIndex *indexPtr1,
/* Index describing location of character from
* which to count. */
- CONST TkTextIndex *indexPtr2,
+ const TkTextIndex *indexPtr2,
/* Index describing location of last character
* at which to stop the count. */
TkTextCountType type) /* The kind of indices to count. */
@@ -1667,8 +1669,7 @@ TkTextIndexCount(
seg2Ptr = TkTextIndexToSeg(indexPtr2, &maxBytes);
if (checkElided) {
- infoPtr = (TkTextElideInfo *)
- ckalloc((unsigned) sizeof(TkTextElideInfo));
+ infoPtr = ckalloc(sizeof(TkTextElideInfo));
elide = TkTextIsElided(textPtr, indexPtr1, infoPtr);
}
@@ -1808,11 +1809,11 @@ TkTextIndexCount(
countDone:
if (infoPtr != NULL) {
TkTextFreeElideInfo(infoPtr);
- ckfree((char *) infoPtr);
+ ckfree(infoPtr);
}
return count;
}
-
+
/*
*---------------------------------------------------------------------------
*
@@ -1837,8 +1838,8 @@ TkTextIndexCount(
int
TkTextIndexBackBytes(
- CONST TkText *textPtr,
- CONST TkTextIndex *srcPtr, /* Source index. */
+ const TkText *textPtr,
+ const TkTextIndex *srcPtr, /* Source index. */
int byteCount, /* How many bytes backward to move. May be
* negative. */
TkTextIndex *dstPtr) /* Destination index: gets modified. */
@@ -1907,8 +1908,8 @@ TkTextIndexBackBytes(
void
TkTextIndexBackChars(
- CONST TkText *textPtr, /* Overall information about text widget. */
- CONST TkTextIndex *srcPtr, /* Source index. */
+ const TkText *textPtr, /* Overall information about text widget. */
+ const TkTextIndex *srcPtr, /* Source index. */
int charCount, /* How many characters backward to move. May
* be negative. */
TkTextIndex *dstPtr, /* Destination index: gets modified. */
@@ -1917,7 +1918,7 @@ TkTextIndexBackChars(
TkTextSegment *segPtr, *oldPtr;
TkTextElideInfo *infoPtr = NULL;
int lineIndex, segSize;
- CONST char *p, *start, *end;
+ const char *p, *start, *end;
int elide = 0;
int checkElided = (type & COUNT_DISPLAY);
@@ -1926,7 +1927,7 @@ TkTextIndexBackChars(
return;
}
if (checkElided) {
- infoPtr = (TkTextElideInfo *) ckalloc(sizeof(TkTextElideInfo));
+ infoPtr = ckalloc(sizeof(TkTextElideInfo));
elide = TkTextIsElided(textPtr, srcPtr, infoPtr);
}
@@ -2092,7 +2093,7 @@ TkTextIndexBackChars(
backwardCharDone:
if (infoPtr != NULL) {
TkTextFreeElideInfo(infoPtr);
- ckfree((char *) infoPtr);
+ ckfree(infoPtr);
}
}
@@ -2116,15 +2117,15 @@ TkTextIndexBackChars(
*----------------------------------------------------------------------
*/
-static CONST char *
+static const char *
StartEnd(
TkText *textPtr, /* Information about text widget. */
- CONST char *string, /* String to parse for additional info about
+ const char *string, /* String to parse for additional info about
* modifier (count and units). Points to first
* character of modifer word. */
TkTextIndex *indexPtr) /* Index to modify based on string. */
{
- CONST char *p;
+ const char *p;
size_t length;
register TkTextSegment *segPtr;
int modifier;
generated by cgit v0.12 at 2024-11-18 04:03:21 (GMT)