XCC is a tool for building XML format parsers. One way to describe what XCC does is by analogy with a generic parser generator, e.g. yacc or bison. Yacc needs a lexical analyzer to function properly, and that lexical analyzer is usually built with (f)lex. In the XML world, there are a few packages which fill in the role of lex (expat and libxml are the most known), but the high-level grammar parsing is usually done by a hand-written code; writing such a parser is a tedious and error-prone task. XCC was created to help developers in writing reliable easy-to-understood parsers for handling complex XML-based grammars.
