Scheme : Parsing a string

Question

I want to convert a string "(1 2 3 4)" to a list (1 2 3 4).
How can this be done using Scheme?

user725091 · Accepted Answer · 2012-05-21 08:57:11Z

5

You could use the built-in read function by turning the string into an "input port" (an abstraction of a file opened for reading):

(read (open-input-string "(1 2 3 4)")) ;; evaluates to (1 2 3 4)

That works in both Guile and Racket. Depending on your Scheme implementation, you might also need to import the SRFI-6 module.

answered May 21, 2012 at 8:57

user725091

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Comments

soegaard · Accepted Answer · 2012-05-21 13:39:00Z

0

Check out the Guide in Racket:

answered May 21, 2012 at 13:39

soegaard

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