Rules
A Grammar is said to be SLR(1) if and only if, for each and every state s in the SLR(1) automaton, none of the following conditions are violated:
1. For any reducible rule A → a.Xb in state s (where X is some terminal), there must not exist some irreducible rule, B → a. in the same state s such that the follow set of B contains the terminal X. In more formal terms, the intersection of set containing the terminal X and the follow set of B must be empty. Violation of this rule is a Shift-Reduce Conflict.
2. For any two complete items A → a. and B → b. in s, Follow(A) and Follow(B) are disjoint (their intersection is the empty set). Violation of this rule is a Reduce-Reduce Conflict.
Read more about this topic: SLR Grammar
Famous quotes containing the word rules:
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—André Breton (1896–1966)
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—John Jay Chapman (1862–1933)
“[O]ur rules can have authority over such natural rights only as we have submitted to them. The rights of conscience we never submitted, we could not submit. We are answerable for them to our God.”
—Thomas Jefferson (1743–1826)