let me rephrase that

[Rob Cozens]

>Do you have a way to explain it more?

Tom,

First & easiest: One can construct a three dimensional array with 
words, items, and lines: word z of item y of line x of myArray = 
myArray[x,y,z].

Of course this supposed the contents of myArray do not include space, 
comma, or return.  And this will not work for arrays with empty 
elements, as an empty word is non sequitur in xTalks.

Something more robust and supporting more dimensions would go along 
the lines of:

on setArrayValue @theArray,theValue,dimension1,dimension2,dimension3,dimension4
	put numToChar(28) into dimension1Delimiter
	put numToChar(29) into dimension2Delimiter
	put numToChar(30) into dimension3Delimiter
	put numToChar(31) into dimension4Delimiter
	set the itemDelimiter to dimension1Delimiter
	put item dimension1 of theArray into firstDimension
	set the itemDelimiter to dimension2Delimiter
	put item dimension2 of firstDimension into secondDimension
	set the itemDelimiter to dimension3Delimiter
	put item dimension3 of secondDimension into thirdDimension
	set the itemDelimiter to dimension4Delimiter
	put theValue into item dimension4 of thirdDimension
	set the itemDelimiter to dimension3Delimiter
	put thirdDimension into item dimension3 of secondDimension
	set the itemDelimiter to dimension2Delimiter
	put secondDimension into item dimension2 of firstDimension
	set the itemDelimiter to dimension1Delimiter
	put firstDimension into item dimension1 of theArray
end setArrayValue

function theArrayValue @theArray,dimension1,dimension2,dimension3,dimension4
	put numToChar(28) into dimension1Delimiter
	put numToChar(29) into dimension2Delimiter
	put numToChar(30) into dimension3Delimiter
	put numToChar(31) into dimension4Delimiter
	set the itemDelimiter to dimension1Delimiter
	put item dimension1 of theArray into firstDimension
	set the itemDelimiter to dimension2Delimiter
	put item dimension2 of firstDimension into secondDimension
	set the itemDelimiter to dimension3Delimiter
	put item dimension3 of secondDimension into thirdDimension
	set the itemDelimiter to dimension4Delimiter
	return item dimension4 of thirdDimension
end theArrayValue

A couple of notes:

If I used multi-dimension arrays to any extent, I would refine the above:

* Dimension delimiters could be passed or stored in a local or global variable

* Handlers could be generalized to handle as many dimensions as are 
passed to them

* The logic seems to me a prime candidate for recursion.

Note that if one is dealing with numeric arrays (ie: content is 
limited to "0" - "9", plus "." & "-"), all other characters are 
available as delimiters; so one could in theory support numeric 
arrays of over 200 dimensions.
-- 

Rob Cozens
CCW, Serendipity Software Company
http://www.oenolog.net/who.htm
2
"And I, which was two fooles, do so grow three;
Who are a little wise, the best fooles bee."

from "The Triple Foole" by John Donne (1572-1631)