XML Processing Plus Plus
The XML Processing Plus Plus compiler converts programs written in this language's syntax into Java code that uses standard XML APIs. The language itself provides simple wrapper APIs: XmlIn and XmlOut. XmlIn is used for retrieving data from XML input streams, and XmlOut for inserting data to XML output streams. In addition, it provides a powerful "compile-time debugging" facility based on its type-checker. The type-checker runs inside the compiler and detects problems in the code.