Consider the following context-free grammar: expr ; term ; : 'IF' expr 'THEN' expr 'ELSE' expr | 'IF' expr 'THEN' expr | term : 'a' | 'b' | 'c' | 'd' | 'e'

Computer Networking: A Top-Down Approach (7th Edition)
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Author:James Kurose, Keith Ross
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Chapter1: Computer Networks And The Internet
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Consider the following context-free grammar:
expr
;
term
;
'IF' expr 'THEN' expr 'ELSE' expr
| 'IF' expr 'THEN' expr
| term
: 'a' | 'b' | 'c' | 'd' 'e'
Transcribed Image Text:Consider the following context-free grammar: expr ; term ; 'IF' expr 'THEN' expr 'ELSE' expr | 'IF' expr 'THEN' expr | term : 'a' | 'b' | 'c' | 'd' 'e'
Start parsing from the non-terminal expr, draw all the possible parse trees for
the string below (ignoring the whitespaces):
IF a THEN IF b THEN IF c THEN d ELSE e
Transcribed Image Text:Start parsing from the non-terminal expr, draw all the possible parse trees for the string below (ignoring the whitespaces): IF a THEN IF b THEN IF c THEN d ELSE e
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