[racket-dev] problem with require and frtime

At Wed, 18 Jan 2012 12:02:10 +0100, Marijn wrote:
> the following fragment:
> 
> 
> #lang frtime
> 
> (require (only-in srfi/1 every))
> 
> 
> leads to ```only-in: bad module path in: (only-in srfi/1 every)'''
> error. 

The `frtime' language builds on (the older) `scheme' language instead
of `racket', so change `only-in' to `only'.

I'll adjust the docs.

> At the same time this other fragment:
> 
> 
> #lang racket
> 
> (require frtime)
> 
> (require srfi/1)
> 
> 
> leads to ```module: identifier already imported from: frtime at: third
> in: srfi/1''' error.
> 
> I would expect both forms to work. This is a reduction of a different
> problem possibly caused by these issues here.

Unfortunately, the `third' from `racket' (via `racket/list') and from
`srfi/1' are just different functions:

 > (require srfi/1)
 > (third '(1 2 3 . 4)) ; works on any sufficiently long chain of pairs
 3
 > (require racket/list)
 > (third '(1 2 3 . 4)) ; requires a list
 third: expected argument of type <list>; given '(1 2 3 . 4)

The documentation should clarify that only the `srfi/1' functions
documented in bold (not including those in italic bold) correspond to
`racket' functions, and the others do not; I'll fix those docs, too.