SYNTAX ANALYSIS
ROLE OF THE PARSER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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Left Factoring is a transformation for factoring out the ____ prefixes.
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odd
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common
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positive
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negative
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Explanation:
Detailed explanation-1: -Left Factoring is a grammar transformation technique. It consists in “factoring out” prefixes which are common to two or more productions.
Detailed explanation-2: -Left factoring is a process by which the grammar with common prefixes is transformed to make it useful for Top down parsers. This kind of grammar creates a problematic situation for Top down parsers. Top down parsers can not decide which production must be chosen to parse the string in hand.
Detailed explanation-3: -In compiler design, left factoring is a process to transform the grammar with common prefixes.
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