COMPUTER SCIENCE AND ENGINEERING
COMPILER DESIGN
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Scanning Left to Right
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Left Most Derivation
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Left Hand Side
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Left Most Non-Terminal
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Detailed explanation-1: -The second L means the derivation will be a leftmost derivation (the leftmost variable is replaced at each step). 1 means that one symbol in the input string is used to help guide the parse.
Detailed explanation-2: -the second L stands for producing a leftmost derivation, and the 1 stands for using one input symbol of lookahead at each step to make parsing action decision.
Detailed explanation-3: -Recognizing LL(1): Here are two properties we know must be true of a grammar if it is to be LL(1): the grammar must not be left recursive.
Detailed explanation-4: -Concept: In LL(K) grammar, first L means scanning input from left to right and second L stands for left most derivation where k means k symbols are used at each step.
Detailed explanation-5: -In computer science, an LL parser (Left-to-right, leftmost derivation) is a top-down parser for a restricted context-free language. It parses the input from Left to right, performing Leftmost derivation of the sentence. An LL parser is called an LL(k) parser if it uses k tokens of lookahead when parsing a sentence.