/*****************************************************************************
* Function: int _DtHelpCeMapIdToSdlTopicId(volume, target_id);
*
* Parameters:
*
* Returns: > 0 if successful, -1 if not.
*
* errno Values:
*
* Purpose: Get the id of the virpage containing the target_id.
*
*****************************************************************************/
int
_DtHelpCeMapIdToSdlTopicId(
_DtHelpVolumeHdl volume,
const char *target_id,
char **ret_id)
{
int found = -1;
_DtCvSegment *idList;
_DtCvSegment *idSeg;
SDLIdInfo *idInfo;
if (_DtHelpCeGetSdlVolIds(volume, -1, &idList) == 0)
{
idSeg = _DtHelpCeMapSdlIdToSegment(volume, target_id, -1);
if (idSeg != NULL)
{
while (found == -1 && idList != NULL)
{
idInfo = _SdlSegToSdlIdInfoPtr(idList);
if (_SdlIdInfoPtrType(idInfo) == SdlIdVirpage)
*ret_id = _DtCvContainerIdOfSeg(idList);
if (idList == idSeg)
found = 0;
else
idList = idList->next_seg;
}
}
}
return found;
}
/*****************************************************************************
* Function: int _DtHelpCeGetSdlTopicChildren(
*
* Parameters:
*
* Returns: pointer to the element, Null otherwise.
*
* errno Values:
*
* Purpose: Find the specified element.
*
*****************************************************************************/
int
_DtHelpCeGetSdlTopicChildren(
_DtHelpVolumeHdl volume,
char *target,
char ***ret_ids)
{
int done = False;
int count = 0;
int segLev;
_DtCvSegment *idSeg;
SDLIdInfo *idInfo;
/*
* Find the target id.
*/
idSeg = _DtHelpCeMapSdlIdToSegment(volume, target, -1);
/*
* save this level and start looking for its children at the next seg.
*/
*ret_ids = NULL;
if (idSeg != NULL)
{
idInfo = _SdlSegToSdlIdInfoPtr(idSeg);
segLev = _SdlIdInfoPtrRlevel(idInfo) + 1;
idSeg = idSeg->next_seg;
}
/*
* process any virpage that has the correct level
*/
while (idSeg != NULL && done == False)
{
idInfo = _SdlSegToSdlIdInfoPtr(idSeg);
if (_SdlIdInfoPtrType(idInfo) == SdlIdVirpage)
{
/*
* If greater, we're at the next sibling.
*/
if (segLev > _SdlIdInfoPtrRlevel(idInfo))
done = True;
else if (segLev == _SdlIdInfoPtrRlevel(idInfo))
{
*ret_ids = (char **) _DtHelpCeAddPtrToArray( (void **) *ret_ids,
(void *)(strdup(_DtCvContainerIdOfSeg(idSeg))));
if ((*ret_ids) == NULL)
return -1;
count++;
}
}
idSeg = idSeg->next_seg;
}
return count;
}
/*****************************************************************************
* Function: _DtCvSegment *_DtHelpCeMapSdlIdToSegment(volume, target_id);
*
* Parameters:
*
* Returns: > 0 if successful, -1 if not.
*
* errno Values:
*
* Purpose: Get the list of location ids between the top and the
* target_id.
*
*****************************************************************************/
_DtCvSegment *
_DtHelpCeMapSdlIdToSegment(
_DtHelpVolumeHdl volume,
const char *target_id,
int fd)
{
int underScore = False;
short minorNo;
_DtCvSegment *idSegs;
char *idString;
char resStr[128] = "SDL-RESERVED-";
minorNo = _SdlVolumeMinorNumber(_DtHelpCeGetSdlVolumePtr(volume));
if (*target_id == '_')
{
/*
* parsers generating SDL_DTD_1_0 and earlier put the special
* access points (_hometopic, _abstract, _copyright, etc.) in
* the SSI.
*/
if (minorNo < SDL_DTD_1_1)
underScore = True;
else
{
target_id++;
strcat(resStr, target_id);
target_id = resStr;
}
}
if (_DtHelpCeGetSdlVolIds(volume, fd, &idSegs) != 0)
return NULL;
while (idSegs != NULL)
{
if (underScore == True)
idString = _SdlIdInfoPtrRssi(_SdlSegToSdlIdInfoPtr(idSegs));
else
idString = _DtCvContainerIdOfSeg(idSegs);
if (idString != NULL &&
_DtHelpCeStrCaseCmpLatin1(idString, target_id) == 0)
return idSegs;
idSegs = idSegs->next_seg;
}
return NULL;
}
/*****************************************************************************
* Function: Boolean _DtHelpCeGetSdlHomeTopicId (_DtHelpVolume vol,
* char *target_id,
* char *ret_name, int *ret_offset)
*
* Parameters: vol Specifies the loaded volume
* target_id Specifies target location ID
* ret_name Returns a null terminated string
* containing a fully qualified path to
* the file that contains 'target_id'.
* ret_offset Returns the offset into 'ret_name'
* to the topic that contains 'target_id'.
*
* Memory own by caller:
* ret_name
*
* Returns: True if successful, False if a failure occurs
*
* errno Values: EINVAL Specifies an invalid parameter was
* used.
* CEErrorMalloc
* CEErrorLocIdNotFound
* Specifies that 'locId' was not
* found.
*
* Purpose: Find which topic contains a specified locationID.
*
*****************************************************************************/
char *
_DtHelpCeGetSdlHomeTopicId (
_DtHelpVolumeHdl volume)
{
_DtCvSegment *idSegs;
CESDLVolume *sdlVol = _DtHelpCeGetSdlVolumePtr(volume);
if (sdlVol->sdl_info != NULL)
{
/*
* Was the first page topic declared in the header?
*/
if (NULL != _SdlDocInfoPtrFirstPg(sdlVol->sdl_info))
return (_SdlDocInfoPtrFirstPg(sdlVol->sdl_info));
/*
* have to search the list of ids for the home topic. This is a
* bit of a kludge since we are looking for a specific string in
* the rssi. But this is for backwards compatibility since the
* Snapshot release of the help system were released with out
* the first-page attribute and relied on _hometopic.
*
* Plus, first-page is #IMPLIED, which means that the parser
* that generated this SDL document does not have to use this
* attribute.
*/
if (_DtHelpCeGetSdlVolIds(volume, -1, &idSegs) != 0)
return NULL;
while (idSegs != NULL)
{
if (SdlIdVirpage == _SdlSegToSdlIdInfoType(idSegs) &&
_DtHelpCeStrCaseCmpLatin1(_SdlIdInfoPtrRssi(
_SdlSegToSdlIdInfoPtr(idSegs)),
"_hometopic") == 0)
return _DtCvContainerIdOfSeg(idSegs);
idSegs = idSegs->next_seg;
}
}
return NULL;
}
/*****************************************************************************
* Function: void _DtHelpFreeSegments (_DtCvSegment *seg_list)
*
* Parameters:
* seg_list Specifies the Canvas Engine segment list.
*
* Returns: Nothing
*
* Purpose: Free all memory associated with an SDL list.
*****************************************************************************/
void
_DtHelpFreeSegments (
_DtCvSegment *seg_list,
_DtCvStatus unresolved,
void (*destroy_region)(),
_DtCvPointer client_data)
{
int i;
char dupFlag;
char **strs;
_DtCvSegment *nextSeg;
_DtCvSegment *topSeg = NULL;
_DtCvSegment *topTab = NULL;
_DtCvSegment **tableSeg;
while (seg_list != NULL)
{
dupFlag = DupFlag(seg_list);
nextSeg = seg_list->next_seg;
switch (_DtCvPrimaryTypeOfSeg(seg_list))
{
case _DtCvCONTAINER:
/*
* free the id block.
*/
if (False == dupFlag &&
NULL != _DtCvContainerIdOfSeg(seg_list))
free(_DtCvContainerIdOfSeg(seg_list));
/*
* free the contents of the block
*/
_DtHelpFreeSegments(_DtCvContainerListOfSeg(seg_list),
unresolved,
destroy_region,
client_data);
break;
case _DtCvMARKER:
if (False == dupFlag)
free(_DtCvIdOfMarkerSeg(seg_list));
break;
case _DtCvREGION:
if (False == dupFlag && NULL != destroy_region)
(destroy_region)(client_data,
_DtCvInfoOfRegionSeg(seg_list));
break;
case _DtCvSTRING:
if (False == dupFlag)
{
free(_DtCvStringOfStringSeg(seg_list));
if (True == unresolved &&
NULL != _DtCvFontOfStringSeg(seg_list))
free(_DtCvFontOfStringSeg(seg_list));
}
break;
case _DtCvTABLE:
if (True == dupFlag)
break;
/*
* free the blocks
*/
tableSeg = _DtCvCellsOfTableSeg(seg_list);
while (NULL != tableSeg && NULL != *tableSeg)
{
/*
* free the id block.
*/
if (False == DupFlag(*tableSeg)
&& NULL != _DtCvContainerIdOfSeg(*tableSeg))
free(_DtCvContainerIdOfSeg(*tableSeg));
/*
* free the contents of the block
*/
_DtHelpFreeSegments(
_DtCvContainerListOfSeg(*tableSeg),
unresolved,
destroy_region,
client_data);
tableSeg++;
}
/*
* free each of the table cells
*/
tableSeg = _DtCvCellsOfTableSeg(seg_list);
while (NULL != tableSeg && NULL != *tableSeg)
{
if (True == TopFlag(*tableSeg))
{
FreePrivateAndSeg(topTab);
topTab = *tableSeg;
}
CheckFreePrivInfo(*tableSeg);
tableSeg++;
}
FreePrivateAndSeg(topTab);
topTab = NULL;
/*
* free the list of cells
*/
tableSeg = _DtCvCellsOfTableSeg(seg_list);
free (tableSeg);
/*
* free the row ids.
*/
_DtHelpCeFreeStringArray(
_DtCvCellIdsOfTableSeg(seg_list));
/*
* free the column justification and width.
*/
free((void *) _DtCvColJustifyOfTableSeg(seg_list));
strs = _DtCvColWOfTableSeg(seg_list);
for (i = 0;
NULL != strs && i < _DtCvNumColsOfTableSeg(seg_list);
i++, strs++)
free((void *) *strs);
if (NULL != _DtCvColWOfTableSeg(seg_list))
free((void *) _DtCvColWOfTableSeg(seg_list));
break;
}
CheckFreePrivInfo(seg_list);
if (True == TopFlag(seg_list))
{
FreePrivateAndSeg(topSeg);
topSeg = seg_list;
}
seg_list = nextSeg;
}
FreePrivateAndSeg(topSeg);
} /* End _DtHelpFreeSegments */
/******************************************************************************
* Function: int MapPath (_DtCvSegment *cur_id, int level, char ***ret_ids)
*
* Parameters:
*
* Return Value: 0 if successful, -1 if failure.
*
* Memory: The memory returned in ret_ids is owned by the caller.
*
* Purpose: To come up with a path from the top of the volume to the
* target id.
*
******************************************************************************/
static int
MapPath (
_DtCvSegment **cur_id,
_DtCvSegment *target_el,
int stop_lev,
int lev_cnt,
int hidden_no,
char ***ret_ids)
{
_DtCvSegment *mySeg = *cur_id;
int count = -1;
int myLev;
SDLIdInfo *info;
while (mySeg != NULL)
{
/*
* Does this match the target id?
* And, is the element a child of the current path?
*/
info = _SdlSegToSdlIdInfoPtr(mySeg);
myLev = _SdlIdInfoPtrRlevel(info);
if (target_el == mySeg && (myLev == -1 || myLev > stop_lev))
{
/*
* matched the target id.
* allocate memory and return.
*/
count = 0;
if (_SdlIdInfoPtrType(info) == SdlIdVirpage)
{
count++;
lev_cnt++;
}
*ret_ids = (char **) malloc (sizeof(char *) * (lev_cnt + 1));
if ((*ret_ids) == NULL)
return -1;
(*ret_ids)[lev_cnt] = NULL;
if (_SdlIdInfoPtrType(info) == SdlIdVirpage)
(*ret_ids)[lev_cnt - 1] = strdup(_DtCvContainerIdOfSeg(mySeg));
return count;
}
else if (myLev != -1 && myLev != hidden_no
&& _SdlIdInfoPtrType(info) == SdlIdVirpage)
{
char *myId = _DtCvContainerIdOfSeg(mySeg);
/*
* If we've hit a virpage that is a sibling or an aunt
* set the search pointer to this segment (since this
* is where we want to start searching again) and return
* a negative on the successful search.
*/
if (myLev <= stop_lev)
{
*cur_id = mySeg;
return -1;
}
/*
* this virpage is a child of mine, so look at it's children
* for the target id.
*/
mySeg = mySeg->next_seg;
count = MapPath(&mySeg, target_el, myLev, lev_cnt + 1, hidden_no,
ret_ids);
/*
* successful response on finding the target id in the virpage's
* children. Duplicate the virpage's id string and return to
* my parent.
*/
if (count != -1)
{
(*ret_ids)[lev_cnt] = strdup(myId);
count++;
return count;
}
}
else /* did not match the target id and is not a virpage
* or is a hidden virpage */
mySeg = mySeg->next_seg;
}
*cur_id = mySeg;
return -1;
}
