Look Ahead Left-to-right parse, Rightmost-derivati

<parsing, algorithm> (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 (http://www.wikipedia.org/wiki/LALR_parser).

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Lolli LOM longitudinal parity Longitudinal Redundancy Check LOOK	LALR Look ahead LR	Look ahead LR look and feel Looking Glass LOOKS loop