On Wed, Jan 27, 2010 at 01:24:48PM +0000, Matthew Walton wrote:
: On Wed, Jan 27, 2010 at 1:19 PM, Carl Mäsak <cma...@gmail.com> wrote:
: > Mark (>), Carl (>>):
: >>> S05 describes tr/// in terms of the .trans function, a handsome but
: >>> very different beast. Specifically, it doesn't seem to have a "scalar
: >>> context", with which one could count things.
: >>
: >> What does trans return in numeric (+) context?
: >
: > As spec'd, it returns the numification of the string resulting from
: > the substitution, I guess.
: >
: > // Carl
: >
:
: $str.comb(/C|G/).join('').chars might do it. It's maybe not quite as
elegant...
Hmm, what might be more elegant? Maybe something like...
[+] $str.comb.Bag<C G>;
Probably does too much work building the Bag though, unless it can be
lazy somehow. But the point is that Bags are really just histograms
with a cute name.
Larry
