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→Introduction
=Introduction=
One of the reasons why things that makes languages such as Java or Perl have been so successful is the vast amount availability of external libraries that are available to developers.As XQuery comes with only 150 pre-defined functions, which cannot meet all requirements, there is some need for additional library modules exist – such as [http://www.functx.com/ FunctX] – that which extend the language with new features.
BaseX offers the following mechanisms to make external modules accessible to the XQuery processor:
# The default internal [[#Packaging|Packaging]] mechanism will install single XQuery and Java JAR modules in the repository.
# The [[#EXPath Packaging|EXPath Packaging]] system provides a generic mechanism for adding XQuery modules to query processors. A package is defined as a {{Code|.xar}} archive, which encapsulates one or more extension libraries.
