libxslt:

## libxslt API Modules

attributes - interface for the XSLT attribute handling
documents - interface for the document handling
extensions - interface for the extension support
extra - interface for the non-standard features
functions - interface for the XSLT functions not from XPath
imports - interface for the XSLT import support
keys - interface for the key matching used in key() and template matches.
namespaces - interface for the XSLT namespace handling
numbersInternals - Implementation of the XSLT number functions
pattern - interface for the pattern matching used in template matches.
preproc - precomputing stylesheets
security - interface for the libxslt security framework
templates - interface for the template processing
transform - the XSLT engine transformation part.
variables - interface for the variable matching and lookup.
xslt - Interfaces, constants and types related to the XSLT engine
xsltInternals - internal data structures, constants and functions
xsltexports - macros for marking symbols as exportable/importable.
xsltlocale - Locale handling
xsltutils - set of utilities for the XSLT engine