in reply to Re: Module for making english lists?
in thread Module for making english lists?

Or, shorter, sweeter and non-recursive (and kind of a restatement of Your Mother's contribution):

perl -wMstrict -le "sub standard_commas { return @_ == 0 ? '' : @_ == 1 ? qq{$_[0]} : join q{, }, @_[0 .. $#_ - 2], qq{$_[-2] and $_[-1]} } sub oxford_commas { return @_ < 3 ? standard_commas(@_) : join q{, }, @_[0 .. $#_ - 1], qq{and $_[-1]} } for (@ARGV) { my @words = split; print qq(\nfor words: @words); print 'standard commas: ', standard_commas(@words); print ' oxford commas: ', oxford_commas(@words); } " "" "a" "a b" "a b c" "a b c d" "a b c d e" for words: standard commas: oxford commas: for words: a standard commas: a oxford commas: a for words: a b standard commas: a and b oxford commas: a and b for words: a b c standard commas: a, b and c oxford commas: a, b, and c for words: a b c d standard commas: a, b, c and d oxford commas: a, b, c, and d for words: a b c d e standard commas: a, b, c, d and e oxford commas: a, b, c, d, and e

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Re^3: Module for making english lists?
by AnomalousMonk (Archbishop) on Aug 26, 2008 at 23:11 UTC
    And, since I don't seem to be able to let this go, still shorter and sweeter:

    sub standard_commas { return join q{, }, @_ < 2 ? @_ : (@_[0 .. $#_ - 2], qq{$_[-2] and $_[-1]}) } sub oxford_commas { return join q{, }, @_ < 3 ? goto &standard_commas : (@_[0 .. $#_ - 1], qq{and $_[-1]}) }
    Tested. The output, which I won't inflict upon you again, is the same.