Simplification of improper lists

[justinethier]

The following quoted expression is simplified in other implementations such as Chicken:

'(1 2 . (3 . ()))
=> (1 2 3)

husk should do this a well.

[justinethier]

See also http://community.schemewiki.org/?scheme-faq-language#dottedapp

Note, however, that most Schemes expand literal lists occurring in function applications, e.g. (foo bar . (1 2 3)) is expanded into (foo bar 1 2 3) by the reader. It is not entirely clear whether this is a consequence of the standard - the notation is not part of the R5RS grammar but there is strong evidence to suggest a Scheme implementation cannot comply with all of R5RS without performing this transformation.

[justinethier]

This functionality has now been added to the parser.