On Mar 4, 2009, at 8:29 PM, Tom Faulhaber wrote:
BTW, cl-format (my Common Lisp format function for Clojure), supports
the ~...@r directive for converting Arabic to Roman (but nothing to go
the other way around. I didn't spend too much time thinking about
stylistic issues when I wrote it,
On Mar 3, 2009, at 4:53 AM, Chouser wrote:
(defn roman? [roman-string]
(and (not (empty? roman-string))
(re-matches
#(?:M{0,3})(?:D?C{0,3}|C[DM])(?:L?X{0,3}|X[LC])(?:V?I{0,3}|I
[VX])$
roman-string)))
The normal idiom in Clojure is (seq x) instead of (not (empty?
On Wed, Mar 4, 2009 at 4:43 AM, David Sletten da...@bosatsu.net wrote:
Conversely, when says side effect. This is clear for 2 reasons.
First, there is no else clause, so when doesn't really work as an
expression. Furthermore, the forms in the when body are evaluated
in an implicit do. Since
representing invalid Roman numerals such as IVI, IXV, etc...
For this purpose the function roman? uses a regular expression I
cribbed from Perl's CPAN module Roman.pm (http://search.cpan.org/
~chorny/Roman-1.23/lib/Roman.pm).
arabic-to-roman performs the obvious conversion in the other
Here's a little toy to practice my basic Clojure skills. I didn't see
any similar topic in the archives, so here we go...
This code performs conversions between Roman and Arabic numerals.
Roman numerals are represented as strings and Arabic numerals are
just integers. Arabic numerals
On Tue, Mar 3, 2009 at 6:40 AM, David Sletten da...@bosatsu.net wrote:
I'd appreciate any feedback regarding my Clojure style. Any more
natural ways to do things?
Looks good, thanks for sharing.
(defn roman? [roman-string]
(and (not (empty? roman-string))
(re-matches
Hello,
Chouser has commented extensively, so I'll just put in my two cents.
On Mar 3, 6:40 am, David Sletten da...@bosatsu.net wrote:
Incidentally, the cond form in roman-to-arabic-aux seems to me
harder to read in Clojure than it would be in CL with its additional
set of grouping
