Question

How do I convert a string into the corresponding code in PLT Scheme (which does not contain the string->input-port method)? For example, I want to convert this string:

'(1 (0) 1 (0) 0)' 

into this list:

'(1 (0) 1 (0) 0) 

Is it possible to do this without opening a file?

Answer 1

Scheme has procedure read for reading s-expressions from input port and you can convert a string to input stream with string->input-port. So, you can read a Scheme object from a string with

(read (string->input-port '(1 (0) 1 (0) 0)')) 

I don’t have Scheme installed, so I only read it from reference and didn’t actually test it.