LLgen is a LL(1) parser in the style of yacc. It
will generate an efficient recursive descent
parser in C for Extended Context-Free grammars,
with an optional non-correcting error recovery
mechanism.
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LLgen was previously part of the Amsterdam Compiler Kit, but has been split out into a standalone component. This version has been updated from its original 1991 vintage source and has a completely rewritten, much more streamlined build system.