Note: This is the documentation that is supplied with the Amsterdam SGML parser, crudely converted to HTML. As with most public SGML packages I have encountered, the documentation is not terribly helpful.
User manual supplied with the Amsterdam Parser distribution. Not as useful as you might want.
Descriptions of all C functions used in the package. Generally, not very useful.
LLgen is an LL(1) parser generator used by the Amsterdam Parser to generate initial stages of the document parser.