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et's say you are writing a parsing function in Racket for the following set of productions. → BaA | bAB |A ou've decided that "a" predicts A → BaA, "b" predicts A→ bAB, and "c" predicts A→ A. Any oth ext input (including $) indicates an error. Complete the function below by filling in the blanks wi hat should replace the # 1, #2, #3 and #4 in the code. n your answers use exactly one space between parameters in function calls. For example, (foo (E D). You may call functions parseA, parseB, and match in your answers. Follow the conventions se n class. (define (parseA toks) (cond ((not (list? toks)) false) (Cempty? toks) #1) ((equal? (first toks) "a") #2 ) (Cequal? (first toks) "b") #3 )

et's say you are writing a parsing function in Racket for the following set of productions. → BaA | bAB |A ou've decided that "a" predicts A → BaA, "b" predicts A→ bAB, and "c" predicts A→ A. Any oth ext input (including $) indicates an error. Complete the function below by filling in the blanks wi hat should replace the # 1, #2, #3 and #4 in the code. n your answers use exactly one space between parameters in function calls. For example, (foo (E D). You may call functions parseA, parseB, and match in your answers. Follow the conventions se n class. (define (parseA toks) (cond ((not (list? toks)) false) (Cempty? toks) #1) ((equal? (first toks) "a") #2 ) (Cequal? (first toks) "b") #3 )

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Let's say you are writing a parsing function in Racket for the following set of productions. A BaA | bAB | A You've decided that "a" predicts A → BaA, "b" predicts A→ bAB, and "c" predicts A→ A. Any other next input (including $) indicates an error. Complete the function below by filling in the blanks with what should replace the #1, #2, #3 and # 4 in the code. In your answers use exactly one space between parameters in function calls. For example, (foo (bar x y)). You may call functions parseA, parseB, and match in your answers. Follow the conventions seen in class. (define (parseA toks) (cond C(not (list? toks)) false) (Cempty? toks) #1) (Cequal? (first toks) "a") #2 ) (Cequal? (first toks) "b") #3 ) (Cequal? (first toks) "c") #45 Čelse false))) # 1 # 2 #3 # 4
Transcribed Image Text:Let's say you are writing a parsing function in Racket for the following set of productions. A BaA | bAB | A You've decided that "a" predicts A → BaA, "b" predicts A→ bAB, and "c" predicts A→ A. Any other next input (including $) indicates an error. Complete the function below by filling in the blanks with what should replace the #1, #2, #3 and # 4 in the code. In your answers use exactly one space between parameters in function calls. For example, (foo (bar x y)). You may call functions parseA, parseB, and match in your answers. Follow the conventions seen in class. (define (parseA toks) (cond C(not (list? toks)) false) (Cempty? toks) #1) (Cequal? (first toks) "a") #2 ) (Cequal? (first toks) "b") #3 ) (Cequal? (first toks) "c") #45 Čelse false))) # 1 # 2 #3 # 4
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