---
name: "XML::XPath::Function"
section: "3pm"
platform: "linux"
package: "perl-xml-xpath"
version: "1.49-1"
release: "Arch Linux 2026-11-01"
platforms: ["linux"]
url: "https://new.carta.tech/XML::XPath::Function"
---

# XML::XPath::Function(3pm)

implementations of XPath functions

## NAME

XML::XPath::Functions - implementations of XPath functions

## DESCRIPTION

XPath 1.0 and some later functions are supported.

Note that functions that take regular expressions use Perl-syntax REs, not the language described in the XPath spec.

## FUNCTIONS

### NODESET FUNCTIONS

- •

  `last()`

- •

  `position()`

- •

  `count()`

- •

  `id()`

- •

  `"local-name()"`

- •

  `name()`

- •

  `"namespace-uri()"`

### STRING FUNCTIONS

*Functions On String Values*

- •

  `string()`

- •

  `concat()`

- •

  `substring()`

- •

  `"string-length()"`

- •

  `"normalize-space()"`

- •

  `translate()`

*Functions Based on Substring Matching*

- •

  `contains()`

- •

  `"starts-with()"`

- •

  `"substring-before()"`

- •

  `"substring-after()"`

*String Functions that Use Pattern Matching*

- •

  `matches()`

### BOOLEAN FUNCTIONS

- •

  `boolean()`

- •

  `not()`

- •

  `true()`

- •

  `false()`

- •

  `lang()`

### NUMBER FUNCTIONS

- •

  `number()`

- •

  `sum()`

- •

  `floor()`

- •

  `ceiling()`

- •

  `round()`