Line offset of an item (and other similar functions).
alex at tweedly.net
Tue Jan 25 08:14:13 CST 2005
Raymond E. Griffith wrote:
>Hmmm. Come to think of it, there should also be a "lineoffset" function.
> put lineoffset(pItem,pData) into ptestline
>No need for a "repeat for each line" construct, although you'd need to turn
>wholeMatches to false. If you are concerned with making sure that you get
>an entire item and not a part of it, then you could do a test on it, as,
> repeat while ptestline > 0
> if pItem is an item of line ptestline of pData then
> return ptestline
> put lineoffset(pItem,pData,ptestline) into ptestline
> end if
> end repeat
Yes, I tried that approach.
The full code fragment isn't quite that straightforward (need to add the
offset each time round the loop):
put lineOffset(pID, pData) into tLineCount
repeat while tLineCount > 0
if pID is among the items of line tLineCount of pData then
put lineoffset(pID,pData,tLineCount) into t
if t = 0 then
put 0 into tLineCount
add t to tLineCount
and it also works. But this too is much less obvious, and long enough
that it would need to be put into a separate function anyway.
It's on the list of alternatives to be benchmarked if performance is a
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