Re: [Chicken-hackers] [PATCH] Add unexport form for modules

[John Cowan]

On Wed, Jun 7, 2017 at 2:06 PM, <address@hidden> wrote:

Isn't it easy to forget particular identifiers that happen to start with "fp"
as well? I think explicit "rename" imports are clearer and less error prone.

My example is bad: you'd want to use it with a module where all the names begin with the same prefix, or almost all.  Another application is to drop the author's prefix and then add your own:  (import (prefix (drop-prefix srfi-13 string-) s:)) would change all the SRFI 13 identifiers beginning "string-" to begin "s:" instead (you'd want to change the Scheme identifiers too).

An open question is what to do when an identifier is the same as the prefix:  Chibi imports it unchanged, Chez changes it to || (the empty identifier).  A third possibility is to not import it.

-- 

John Cowan          http://vrici.lojban.org/~cowan        address@hidden

Your worships will perhaps be thinking that it is an easy thing

to blow up a dog? [Or] to write a book?

    --Don Quixote, Introduction