59     struct Node *parentPtr;	/* Pointer to parent node, or NULL if this is  member
280     rootPtr->parentPtr = NULL;  in TkBTreeCreate()
297     linePtr->parentPtr = rootPtr;  in TkBTreeCreate()
307     linePtr2->parentPtr = rootPtr;  in TkBTreeCreate()
957     nodePtr = linePtr->parentPtr;  in TkBTreeAdjustPixelHeight()
960     while (nodePtr->parentPtr != NULL) {  in TkBTreeAdjustPixelHeight()
961 	nodePtr = nodePtr->parentPtr;  in TkBTreeAdjustPixelHeight()
1089 	newLinePtr->parentPtr = linePtr->parentPtr;  in TkBTreeInsertChars()
1138     for (nodePtr = linePtr->parentPtr ; nodePtr != NULL;  in TkBTreeInsertChars()
1139 	    nodePtr = nodePtr->parentPtr) {  in TkBTreeInsertChars()
1149     nodePtr = linePtr->parentPtr;  in TkBTreeInsertChars()
1361     curNodePtr = curLinePtr->parentPtr;  in TkBTreeDeleteIndexRange()
1374 		if (curNodePtr == index1Ptr->linePtr->parentPtr) {  in TkBTreeDeleteIndexRange()
1380 			nodePtr = nodePtr->parentPtr) {  in TkBTreeDeleteIndexRange()
1430 		Node *parentPtr;  in TkBTreeDeleteIndexRange()  local
1432 		parentPtr = curNodePtr->parentPtr;  in TkBTreeDeleteIndexRange()
1433 		if (parentPtr->children.nodePtr == curNodePtr) {  in TkBTreeDeleteIndexRange()
1434 		    parentPtr->children.nodePtr = curNodePtr->nextPtr;  in TkBTreeDeleteIndexRange()
1436 		    Node *prevNodePtr = parentPtr->children.nodePtr;  in TkBTreeDeleteIndexRange()
1442 		parentPtr->numChildren--;  in TkBTreeDeleteIndexRange()
1446 		curNodePtr = parentPtr;  in TkBTreeDeleteIndexRange()
1448 	    curNodePtr = curLinePtr->parentPtr;  in TkBTreeDeleteIndexRange()
1487 	curNodePtr = index2Ptr->linePtr->parentPtr;  in TkBTreeDeleteIndexRange()
1489 		nodePtr = nodePtr->parentPtr) {  in TkBTreeDeleteIndexRange()
1569     Rebalance((BTree *) index1Ptr->tree, index1Ptr->linePtr->parentPtr);  in TkBTreeDeleteIndexRange()
1797     for (nodePtr = linePtr->parentPtr; ; nodePtr = nodePtr->parentPtr) {  in TkBTreeNextLine()
1802 	if (nodePtr->parentPtr == NULL) {  in TkBTreeNextLine()
1849     prevPtr = linePtr->parentPtr->children.linePtr;   /* First line at leaf. */  in TkBTreePreviousLine()
1866     for (nodePtr = linePtr->parentPtr; ; nodePtr = nodePtr->parentPtr) {  in TkBTreePreviousLine()
1867 	if (nodePtr == NULL || nodePtr->parentPtr == NULL) {  in TkBTreePreviousLine()
1870 	if (nodePtr != nodePtr->parentPtr->children.nodePtr) {  in TkBTreePreviousLine()
1874     for (node2Ptr = nodePtr->parentPtr->children.nodePtr; ;  in TkBTreePreviousLine()
1919     Node *nodePtr, *parentPtr;  in TkBTreePixelsTo()  local
1927     nodePtr = linePtr->parentPtr;  in TkBTreePixelsTo()
1942     for (parentPtr = nodePtr->parentPtr ; parentPtr != NULL;  in TkBTreePixelsTo()
1943 	    nodePtr = parentPtr, parentPtr = parentPtr->parentPtr) {  in TkBTreePixelsTo()
1946 	for (nodePtr2 = parentPtr->children.nodePtr; nodePtr2 != nodePtr;  in TkBTreePixelsTo()
1981     Node *nodePtr, *parentPtr, *nodePtr2;  in TkBTreeLinesTo()  local
1988     nodePtr = linePtr->parentPtr;  in TkBTreeLinesTo()
2003     for (parentPtr = nodePtr->parentPtr ; parentPtr != NULL;  in TkBTreeLinesTo()
2004 	    nodePtr = parentPtr, parentPtr = parentPtr->parentPtr) {  in TkBTreeLinesTo()
2005 	for (nodePtr2 = parentPtr->children.nodePtr; nodePtr2 != nodePtr;  in TkBTreeLinesTo()
2216 	    ChangeNodeToggleCount(search.curIndex.linePtr->parentPtr,  in TkBTreeTag()
2335     for ( ; nodePtr != tagPtr->tagRootPtr; nodePtr = nodePtr->parentPtr) {  in ChangeNodeToggleCount()
2398 		rootNodePtr = rootNodePtr->parentPtr;  in ChangeNodeToggleCount()
2916 	nodePtr = searchPtr->curIndex.linePtr->parentPtr;  in TkBTreeNextTag()
2940 		if (nodePtr->parentPtr == NULL ||  in TkBTreeNextTag()
2941 		    nodePtr->parentPtr == searchPtr->tagPtr->tagRootPtr) {  in TkBTreeNextTag()
2944 		nodePtr = nodePtr->parentPtr;  in TkBTreeNextTag()
3117 	nodePtr = searchPtr->curIndex.linePtr->parentPtr;  in TkBTreePrevTag()
3144 		    node2Ptr = nodePtr->parentPtr->children.nodePtr ;  in TkBTreePrevTag()
3165 	    nodePtr = nodePtr->parentPtr;  in TkBTreePrevTag()
3166 	    if (nodePtr->parentPtr == NULL ||  in TkBTreePrevTag()
3284     for (siblingLinePtr = indexPtr->linePtr->parentPtr->children.linePtr;  in TkBTreeCharTagged()
3307     for (nodePtr = indexPtr->linePtr->parentPtr; nodePtr->parentPtr != NULL;  in TkBTreeCharTagged()
3308 	    nodePtr = nodePtr->parentPtr) {  in TkBTreeCharTagged()
3312 	for (siblingPtr = nodePtr->parentPtr->children.nodePtr;  in TkBTreeCharTagged()
3411     for (siblingLinePtr = indexPtr->linePtr->parentPtr->children.linePtr;  in TkBTreeGetTags()
3428     for (nodePtr = indexPtr->linePtr->parentPtr; nodePtr->parentPtr != NULL;  in TkBTreeGetTags()
3429 	    nodePtr = nodePtr->parentPtr) {  in TkBTreeGetTags()
3433 	for (siblingPtr = nodePtr->parentPtr->children.nodePtr;  in TkBTreeGetTags()
3587     for (siblingLinePtr = indexPtr->linePtr->parentPtr->children.linePtr;  in TkTextIsElided()
3608     for (nodePtr = indexPtr->linePtr->parentPtr; nodePtr->parentPtr != NULL;  in TkTextIsElided()
3609 	    nodePtr = nodePtr->parentPtr) {  in TkTextIsElided()
3613 	for (siblingPtr = nodePtr->parentPtr->children.nodePtr;  in TkTextIsElided()
3929     if (nodePtr->parentPtr != NULL) {  in CheckNodeConsistency()
3956 	    if (linePtr->parentPtr != nodePtr) {  in CheckNodeConsistency()
3987 	    if (childNodePtr->parentPtr != nodePtr) {  in CheckNodeConsistency()
4113     for ( ; nodePtr != NULL; nodePtr = nodePtr->parentPtr) {  in Rebalance()
4132 		if (nodePtr->parentPtr == NULL) {  in Rebalance()
4134 		    newPtr->parentPtr = NULL;  in Rebalance()
4155 		newPtr->parentPtr = nodePtr->parentPtr;  in Rebalance()
4179 		nodePtr->parentPtr->numChildren++;  in Rebalance()
4202 	    if (nodePtr->parentPtr == NULL) {  in Rebalance()
4205 		    treePtr->rootPtr->parentPtr = NULL;  in Rebalance()
4218 	    if (nodePtr->parentPtr->numChildren < 2) {  in Rebalance()
4219 		Rebalance(treePtr, nodePtr->parentPtr);  in Rebalance()
4229 		for (otherPtr = nodePtr->parentPtr->children.nodePtr;  in Rebalance()
4291 		nodePtr->parentPtr->numChildren--;  in Rebalance()
4380 	    linePtr->parentPtr = nodePtr;  in RecomputeNodeCounts()
4414 	    childPtr->parentPtr = nodePtr;  in RecomputeNodeCounts()
4453 		summaryPtr->tagPtr->tagRootPtr = nodePtr->parentPtr;  in RecomputeNodeCounts()
4743 	ChangeNodeToggleCount(linePtr->parentPtr,  in ToggleDeleteProc()
4800 		ChangeNodeToggleCount(linePtr->parentPtr,  in ToggleCleanupProc()
4812 	ChangeNodeToggleCount(linePtr->parentPtr,  in ToggleCleanupProc()
4842 	ChangeNodeToggleCount(linePtr->parentPtr,  in ToggleLineChangeProc()
4879     needSummary = (segPtr->body.toggle.tagPtr->tagRootPtr!=linePtr->parentPtr);  in ToggleCheckProc()
4880     for (summaryPtr = linePtr->parentPtr->summaryPtr; ;  in ToggleCheckProc()