xs:ENTITY

Construct an ENTITY value from an item value.

Related Syntax Constructs

The following construct(s) refer to this construct:

[ Syntax | Description | Argument | Examples ]

Syntax

xs:ENTITY(item $value) => ENTITY

Description

This is a constructor function that takes an item value as argument and returns a value of type xs:ENTITY. If the argument is a literal, then the literal must be a valid lexical form of its type.

As specified in the respective section of the W3C recommendation XML Schema Part 2: Datatypes, a value of type xs:ENTITY denotes an entity, as defined in the XML 1.0 recommendation. It is derived from the type xs:NCName and the lexical form of xs:ENTITY is the set of all strings that match the production of NCName.

Argument

$value	item value

Examples

The following queries generate valid values of type xs:ENTITY
```
xs:ENTITY("_header")
```
```
xs:ENTITY("R2D2")
```
The following queries generate invalid values of type xs:ENTITY
```
xs:ENTITY("-header")
```
```
xs:ENTITY("1A")
```