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im a new Scheme user and i have some problems when practicing on the following questions:
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1. convert strings to word, for example
(string-the-word " Hello, everyone. I need your help!")
and should return
(list "Hello" "everyone" "I" "need" "your" "help")
(string-the-word " Hello, everyone. I need your help!")
and should return
(list "Hello" "everyone" "I" "need" "your" "help")
where string-the-word recognizes a character string as its argument then returns a list of the words entered in the string.
also i have played around with string->list, string-append, and char-alphabetic? , but couldn't figure it out
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2. then i was writing some codes that compare the match words from two lists then return the the result in percentage of matches
(I used quotient for this)
for example,
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(matches? (list "Hello" "Everyone") (list "Hello" "Everyone" "My" "Name" "is" "Drscheme"))
should return 33 (%)
where
(quotient (* 2 100) 6) = 33
the 2 stands for the number of word that matches to the list
and 6 is the total number of the word in the list
but i really have no idea how to do the rest...like how to join them together
can someone please help me with this
thanks very much!
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