On 2018-08-08 23:19, Mark Wieder via use-livecode wrote:
On 08/08/2018 10:54 AM, Mark Waddingham via use-livecode wrote:
Yup - but isSequence would be correct - false.
The extents might be 1,10
But isSequence would check whether it was 1,9 ...
Ah. OK, but I was actually replying to Dick Kriesel's isSequence
function, which incorrectly would reply true. I'm not familiar with
any other isSequence function. Do you have a reference for that?
Haha - okay yes - I must confess I missed one very important line in
your 'test' handler:
put "false" into sArray[pi]
This actually means there is a bug in the engine 'extents()' function
(the lower-level routines the engine uses to check for Sequences /
NumericSequences are correct as they use an optimized form, as they
don't require generation of the extents).
Specially, the extents function is parsing the array key (item list -
extents can act on multi-dimensional arrays) as numbers, not as
integers. Therefore it is erroneously returning a set of extents for an
array which contains a non-integer key.
So - Dick's function is correct, it is the extents function which is
currently incorrect.
Warmest Regards,
Mark.
--
Mark Waddingham ~ m...@livecode.com ~ http://www.livecode.com/
LiveCode: Everyone can create apps
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