Description of ParserBuilder - COCO/R IDE for Delphi :
ParserBuilder is an OpenSource IDE from which you can edit, build and test recursive descent parsers for Delphi - defined using the COCO/R language. Alpha release with EXE, Help and full D6 Source. The COCO/R library is a port from COCO/R for TurboPascal 1.51. A number of freeware libraries are required for recompiling.