On Feb 17, 2009, at 5:48 PM, Frantisek Sodomka wrote:
Is this consistent and correct behavior? If it is correct, page http://clojure.org/Reader could tell more about 'nil, 'false and 'true.
It is correct. nil, true, and false are literals--they evaluate to themselves. They are a bit special in that if they were not literals, they would be symbols. All other literals are adorned somehow which makes it easy to see what they are:
* Strings - Enclosed in "double quotes".
* Numbers - Always begin with a character in: + - 0 1 2 3 4 5 6 7
8 9 (and follow some rules after that)
* Characters - preceded by a backslash
* Keywords - preceded by a colon
The remaining literals:
* nil, true, and false
These are already listed in the literals section at clojure.org/
Reader. I agree that a note emphasizing that these 3 literals are
unusual because they're unadorned may be helpful.
--Steve
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