pure-lang-users

[pure-lang-users] catmap bug

[Eddie R. <er...@bm...>]

catmap for strings has a bug.

 > upcase s::string = s-32 if s!0 >= "a" && s!0 <= "z"; = s;
 > catmap upcase "ainsworth";
 "A"+("I"+("N"+("S"+("W"+("O"+("R"+("T"+("H"+[]))))))))

The inner most parenthesis should be ("H"+"").

e.r.

Re: [pure-lang-users] catmap bug

[Albert G. <Dr....@t-...>]

Eddie Rucker wrote:
> catmap for strings has a bug.

Yep, you're right. That slipped into 0.6 already when I reimplemented
cat to make it work lazily with streams. Same issue with catmap for
matrices. I'm working on a solution and will put out a bugfix release asap.

Thanks for reporting!

Albert

-- 
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email:  Dr....@t-..., ag...@mu...
WWW:    http://www.musikinformatik.uni-mainz.de/ag

Re: [pure-lang-users] catmap bug

[Albert G. <Dr....@t-...>]

Eddie Rucker wrote:
> catmap for strings has a bug.

Ok, this is fixed now (r879).

  > upcase s::string = s-32 if s!0 >= "a" && s!0 <= "z"; = s;
  > catmap upcase "ainsworth";
  ["A","I","N","S","W","O","R","T","H"]

Note that catmap correctly returns a list there (as it always does). If
you want a string result, just combine string and map instead:

  > string $ map upcase "ainsworth";
  "AINSWORTH"

Albert

-- 
Dr. Albert Gr"af
Dept. of Music-Informatics, University of Mainz, Germany
Email:  Dr....@t-..., ag...@mu...
WWW:    http://www.musikinformatik.uni-mainz.de/ag