LR-Grammars. LR(0), LR(1), and LR(K). Deterministic Context-Free Languages. DCFL A family of languages that are accepted by a Deterministic Pushdown Automaton (DPDA) Many programming languages can be described by means of DCFLs. Prefix and Proper Prefix. Prefix (of a string)
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LR(0), LR(1), and LR(K)
S’·Sc, S’S·c, S’Sc·
S·SA, SS·A, SSA·, S·A, SA·
A·aSb, Aa·Sb, AaS·b, AaSb·, A·ab, Aa·b, Aab·