Maurice Tutor

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Teaching Since: May 2017
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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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  • Professor
    Phoniex University
    Oct-2001 - Nov-2016

Category > Computer Science Posted 28 Aug 2017 My Price 4.00

bottom-up grammars

1. Write top-down and bottom-up grammars for the language consisting of all well-formed regular expressions. Arrange for all operators to be left associative. Give Kleene closure the highest precedence and alternation the lowest precedence.

2. Suppose that the expression grammar in Example 2.7 were to be used in conjunction with a scanner that did not remove comments from the input but rather returned them as tokens. How would the grammar need to be modified to allow comments to appear at arbitrary places in the input?

Answers

Maurice Tutor
(5)
Status NEW Posted 28 Aug 2017 10:08 PM My Price 4.00

Hel-----------lo -----------Sir-----------/Ma-----------dam-----------Tha-----------nk -----------You----------- fo-----------r u-----------sin-----------g o-----------ur -----------web-----------sit-----------e a-----------nd -----------and----------- ac-----------qui-----------sit-----------ion----------- of----------- my----------- po-----------ste-----------d s-----------olu-----------tio-----------n.P-----------lea-----------se -----------pin-----------g m-----------e o-----------n c-----------hat----------- I -----------am -----------onl-----------ine----------- or----------- in-----------box----------- me----------- a -----------mes-----------sag-----------e I----------- wi-----------ll

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