chapter 03 questions & answers

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Lexical

Analysis

2013

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Fannia Backbone Compilers Course :

Monday, May 13, 2013

جميع الفصولمذكرات تحضير : فصل : http://fanniabackbone.wikispaces.com/compilers

Mr_El_Masry@Yahoo.Com

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:

i.

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i.

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:

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i.

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Let the String X = 123112 , Y = 334

Then:

0. X. Y = 123112334 2. Y. X = 334123112 3. |X| = 6 4. |Y| = 3 5. = 3|X| 1 6. = 3|Y| 2 7. = 1|X| 3 8. = 1|Y| 0 9. X = .ε 123112

01. =R X 211321 00. = RY

433

02. . Y= R X 211321334

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}jnq2 ,…., jq , 1jq{

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[0-9]

0+1+2+3+4+5+6+7+8+9

d\

+9]-[0

+Digit

+

d\

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[0-9]

+] Digit . [+Digit

+d\[.]+

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