Add 'subsequences' and 'permutations' to Data.List (ticket
#1990), discussion period end
Twan van Laarhoven
twanvl at gmail.com
Tue Jan 8 18:58:54 EST 2008
Twan van Laarhoven wrote:
> Hello all,
> As Thomas Hartman noted in a recent cafe thread , haskell 1.3
> included the functions 'subsequences' and 'permutations'. I think these
> functions are quite useful, and I don't know why they were ever removed.
> This is a proposal to add these two functions to Data.List. The
> implementation is taken directly from the Haskell 1.3 report .
> Trac ticket: #1990
> Discussion period ends: January 7th (since there is a holiday comming up)
The discussion period for this proposal is over. Everyone here seems to
agree it is a good idea.
The patch attached to the trac ticket contains the best versions discussed
in this thread:
- Wolfram(kahl at cas.mcmaster.ca)'s version of subsequences
- my permutations8c
Can someone with the power to do so apply this patch?
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