---
name: "Tree::XPathEngine::Function"
section: "3pm"
platform: "linux"
package: "libtree-xpathengine-perl"
version: "0.05-3"
release: "Debian 13 (Trixie)"
platforms: ["linux"]
url: "https://new.carta.tech/Tree::XPathEngine::Function"
---

# Tree::XPathEngine::Function(3pm)

evaluates XPath functions

## NAME

Tree::XPathEngine::Function - evaluates XPath functions

## METHODS

### new

### evaluate

evaluate the function on a nodeset

### \_execute

evaluate the function on a nodeset

### as\_string

dump the function call as a string

### as\_xml

dump the function call as xml

### XPath methods

See the specs for details

- last =item position =item count =item id =item name =item string

  - concat =item starts\_with =item contains =item substring =item substring\_after =item substring\_before =item string\_length =item normalize\_space =item translate =item boolean =item not =item true =item false =item lang =item number =item sum =item floor =item ceiling =item round