A method and apparatus for modifying an events queue for extending an extended mark-up language (XML) processor's feature set are described. In one embodiment, the method includes the parsing of an XML document to generate an initial event queue. During parsing of the XML document, an event associated with a parser plug-in module may be detected. When an event associated with a parser plug-in module is detected, control is passed to the plug-in module to perform event-based functionality to modify the initial event queue to form a modified event queue. Subsequently, any additional event information contained within the modified event queue, as generated by the parser plug-in module, is reported to, for example, an end user application. Other embodiments are described and claimed.