B.2.1.9 Data Array

arrayread	Get the array data
	`data-array:A=`arrayread`(array-id:I)`
	$\rightarrow$ The array id its index under the current node.See 'arrayinfo' remarks.
narrays	Count arrays under the current node
	`number-of-arrays:I=`narrays`()`
	$\rightarrow$ Use 'goto' to set the current node.
arraywrite	Create or update a new array
	`array-id:I=`arraywrite`(array-name:S,d-type:S,d-dim:I,d-vector:(I,...),d-array:A)`
	$\rightarrow$ All type, dim* vector are refering to the array of dataitself. See also 'arrayinfo' remarks.*
arrayinfo	Get infos about a given array
	`(array-name:S,data-type:S,data-dim:I,data-vector:(I,...))=`arrayinfo`(array-id:I)`
	$\rightarrow$ The current node is the parent node of the requested array.The data-type enumerate can be found using the cross dictionnary.There is redondancy of 'data-dim' and 'data-vector', first can bededuced from the second.