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2 questions
4votes
1answer
465views
Why does DrRacket IDE considers some identifiers as "symbols" and some as "keywords"? What is the difference?
Why does DrRacket (kind of Scheme) IDE highlights some of the identifiers as "keywords" (for example define, lambda, send*), and the others as "symbols" (user defined identifiers, +, -, abs, send, ...
- 942
4votes
4answers
468views
In Scheme, what is formally a program's state?
I think i've understood more or less what a parsed Scheme program looks like (a binary tree with atomic values on the leaves, if i have understood correctly). Can anybody please define to me, or give ...
- 942
