CONTENT PROCESSING WITH EXTENSIBILITY

A content generation system may allow for extensions that can modify or influence the content that is being generated, while allowing the extensions to run separately from the base content generator. In one example, a processing engine converts raw data into presentable content (e.g., HTML content that is visually-presentable on a high-quality web site). The processing engine may be extensible in the sense that it may allow extension components to interact with the processing engine, or to modify the output of the processing engine, in order to influence the nature of the generated content. For example, if the processing engine uses certain parameters to produce a banner, then an extension may cause the banner to be rotated, re-sized, re-colored, etc. The extension may execute in an isolated space, thereby allowing code of arbitrary provenance to execute without destabilizing the processing engine or the server on which the processing engine runs.