Look Ahead Left-to-right parse, Rightmost-derivation
LALR
Look ahead LR

    (LALR, Look ahead LR) A type of LR parser that can
   deal with more context-free grammars than SLR parsers but less
   than LR[1] parsers.  LALR parsers are popular because they give
   a good trade-off between the number of grammars they can deal with
   and the size of the parsing table required.

   Compiler compilers like yacc and Bison generate LALR
   parsers.

   <Wikipedia>.

   (2003-05-13)