How can i search and retrieve the first word ...

Question

How can i retrieve the FIRST or the SECOND word in a document stored in a file_datastore ?
Thanks
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Answer 1

You noticed the first one yourself: the Found item list seems to randomly jump around the document -- I believe you are correct in your observation it may be due to the object construction order. That tells me, by the way, something about your lot numbers that tou didn't mention: your text is not one continuous long threaded story, but it's all or partially in disconnected etxt frames. The Found list does return everything inside a single story in the correct order, but it goes over each separate story in the order they were constructed.
The only solution is to gather all of your lot numbers, *re-sort* them according to the page number they appear on (and some sort of Worst Case Scenario is when you might have more than one lot number frame per page; in that case you also need to sort by textframe, top to bottom -- yet even worse is if you also may have these textframes side by side!).
Only then you have a reliable counting order.
This isn't too bad. We can just extend the method I offered for sorting top-to-bottom/left-to-right in Re: Working around the frame selection order issue in CS 4 and make it also include page numbers:
function byPageYX(a,b) {
    var
        aP = a.parentTextFrames[0].parentPage.index,
        bP = b.parentTextFrames[0].parentPage.index,
        aY = a.baseline[0],
        bY = b.baseline[0],
        aX = a.horizontalOffset[1],
        bX = b.horizontalOffset[1],
        dP = aP-bP,
        dy = aY-bY,
        dx = aX-bX;
    return dP?dP:(dy?dy:dx);
myResults.sort(byPageYX);
Or something like that.
As for actually implementing the above I cannot be of any help with Applescript.
Once we're dealing with sorting I think you're much better off in Javascript anyhow.