Maps and arrays Functions

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Introduction

XPath 3.1 introduces maps and arrays. Orbeon Forms does not support XPath 3.1 yet, however it implements a subset of operations on maps and arrays.

Availability

[SINCE Orbeon Forms 2017.2]

Maps

Introduction

Orbeon Forms does not support the native XPath 3.1 syntax to create maps. But you can create a new map as follows using the map:merge() and map:entry() functions:

map:merge(
(
map:entry('number', 42),
map:entry('string', 'forty-two'),
map:entry('node', instance()),
map:entry('sequence', 1 to 10)
)
)

map:entry()

map:entry(
$key as xs:anyAtomicType,
$value as item()*
) as map(*)

XPath 3.1 documentation.

map:merge()

map:merge($maps as map(*)*) as map(*)

XPath 3.1 documentation.

map:get()

map:get(
$map as map(*),
$key as xs:anyAtomicType
) as item()*

XPath 3.1 documentation.

Arrays

Introduction

Orbeon Forms does not support the native XPath 3.1 syntax to create arrays. But you can create a new array as follows using the array:join() and array:append() functions:

array:append(
array:append(
array:append(
array:append(
array:join(()),
42
),
'forty-two'
),
instance()
),
1 to 10
)

array:size()

array:size($array as array(*)) as xs:integer

XPath 3.1 documentation.

array:get()

array:get($array as array(*), $position as xs:integer) as item()*

XPath 3.1 documentation.

array:put()

array:put(
$array as array(*),
$position as xs:integer,
$member as item()*
) as array(*)

XPath 3.1 documentation.

array:append()

array:append(
$array as array(*),
$appendage as item()*
) as array(*)

XPath 3.1 documentation.

array:join()

array:join($arrays as array(*)*) as array(*)

XPath 3.1 documentation.