> On 1 Apr 2015, at 21:48, Graham Samuel <livf...@mac.com> wrote:
> So, following on another mail I just sent, I think people can get confused by
> sub-arrays and what ‘the keys’ actually looks at. More examples needed in the
> docs, perhaps.
>
> Hope this is not seen as wilful misunderstanding - it’s not meant to be!
I can understand that "sub-arrays" can be confusing. And perhaps the use of
multiple sets of square brackets makes it more so. Where possible, I try to
avoid using multiple square brackets. So instead of this:
----------------------
put "1" into tA[1]
put "2.1" into tA[2][1]
put "2.2" into tA[2]["surprise me, Jean"]
----------------------
I might use this:
-----------------------
put "1" into tA[1]
put "2.1" into tB[1]
put "2.2" into tB["surprise me, Jean"]
put tB into tA[2]
------------------------
I think it makes it clearer that the "sub-array" is actually a quite separate
array. It just happens to be kept in one of the elements of the other array.
As Michael pointed out, the ConvertXMLToArray example was probably not the
easiest of examples to deal with. XML doesn't easily convert to an array, and
the function uses complex key names to try to preserve the xml structure.
I don't know if it helps, but below is an example of the kind of thing I've
used to try to illustrate arrays to people before.
---------------------------
on mouseUp
put empty into field 1
put "John" into tPerson["firstName"]
put "Smith" into tPerson["lastName"]
put "M" into tPerson["gender"]
put "1994-04-04" into tPerson["dateOfBirth"]
put tPerson into tPeople[1]
put "Sue" into tPerson["firstName"]
put "Jones" into tPerson["lastName"]
put "F" into tPerson["gender"]
put "1992-03-03" into tPerson["dateOfBirth"]
put tPerson into tPeople[2]
//lets look at the keys
put the keys of tPeople & cr & cr after field 1
put the keys of tPeople[1] & cr & cr after field 1
put the keys of tPeople[2] & cr & cr after field 1
//lets look at the data
put the keys of tPeople into tTopKeys
repeat for each line tKey in tTopKeys
put tPeople[tKey] into tPerson
put the keys of tPerson into tPersonKeys
repeat for each line tPersonKey in tPersonKeys
put tPersonKey & ": " & tPerson[tPersonKey] & cr after field 1
end repeat
put cr after field 1
end repeat
end mouseUp
---------------------------
Cheers
Dave Cragg
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