Find and replace all occurences of a string inside the current paragraph.

I have written the following function to get the active document and the selection point.

I'm facing two problems:

Problem 1. Whenever I search and replace a text it removes the space after each find match. e.g:

textToFind: "find this"

textToReplace: "replace this"

Example paragraph: "This is a sentence which contains find this and it will be replaced and also this find this will be replaced"

When the method runs it replaces any match of find this in the paragraph but removes the space after the pattern.

Result:

"This is a sentence which contains replace thisand it will be replaced and also this replace thiswill be replaced"

Why is thsi happenning? Can we fix it?

Problem 2. The search and find works in the whole document and starts after the insertion point. I really want to search and replace occurances only inside the current paragraph where the insertion point exists.

Please help.

void FMClient::FindAndReplaceInCurrentParagraph(ConStringT textToFind, ConStringT textToReplace)
p
        F_ObjHandleT docId = F_ApiGetId(FV_SessionId, FV_SessionId, FP_ActiveDoc);

        if (!docId)
        {
            return;
        }

        F_TextRangeT insertionPoint = F_ApiGetTextRange(FV_SessionId, docId, FP_TextSelection);

        if (!insertionPoint.beg.objId)
        {
            return;
        }

        if (insertionPoint.beg.objId != insertionPoint.end.objId)
        {
            return;
        }

        StringT stringToFind = F_StrCopyString(textToFind);

        F_PropValsT findParams = F_ApiAllocatePropVals(2);

        findParams.val[0].propIdent.num = FS_FindText;
        findParams.val[0].propVal.valType = FT_String;
        findParams.val[0].propVal.u.sval = stringToFind;

        findParams.val[1].propIdent.num = FS_FindCustomizationFlags;
        findParams.val[1].propVal.valType = FT_Integer;
        findParams.val[1].propVal.u.ival = FF_FIND_CONSIDER_CASE | FF_FIND_WHOLE_WORD;

        F_TextRangeT searchRange;

        searchRange.beg.objId = searchRange.end.objId = insertionPoint.beg.objId;

        searchRange.beg.offset = searchRange.end.offset = 0;

        FA_errno = FE_Success;

        IntT replaceStringLength = F_ApiStringLen(textToReplace);

        IntT loopCounter = 0;

        searchRange = F_ApiFind(docId, &searchRange.beg, &findParams);

        while (FA_errno == FE_Success && loopCounter++ < 10000)
        {
            F_ApiSetTextRange(FV_SessionId, docId, FP_TextSelection, &searchRange);

            F_ApiClear(docId, 0);

            F_ApiAddText(docId, &searchRange.beg, textToReplace);

            searchRange.beg.offset += replaceStringLength;

            FA_errno = FE_Success;

            searchRange = F_ApiFind(docId, &searchRange.beg, &findParams);
        }

        F_ApiSetTextRange(FV_SessionId, docId, FP_TextSelection, &insertionPoint);

        F_ApiScrollToText(docId, &insertionPoint);

        F_ApiDeallocatePropVals(&findParams);
    }