From: Simon Strandgaard <0bz63fz3m1qt3001@...>
Date: 2003-06-22T22:28:09+09:00
Subject: Re: String#decorate

On Sun, 22 Jun 2003 06:46:00 +0000, Martin DeMello wrote:

> When chaining methods, it'd be neat to have something that was passed
> in the string and returned a 'decorated' version, e.g.
> 
> pp = ary.join(",").decorate {|s| "[#{s}]"}

I assume you want 'pp' to contain:  "(1),(2),(3)"  ?
If so then I don't think your example will work:
  1st you join the array into a string
  2nd you decorate each array-element  (impossible).

Instead prefer supplying a block to #join which does the decoration.
[1, 2, 3].join(", ") {|s| "(#{s})"}
# "(1), (2), (3)"


> attrib = title.capitalize.decorate {|t| "\t -- #{author[t]},\"#{t}\""}
> (n*100).to_s.decorate {|p| "#{p}% done"}

These cases could be useful.


> Not quite an RCR (it's trivially implementable anyway) - just wanted
> to see what people thought of the idea, and in particular if anyone
> had nicer names to suggest.

It works a bit like 'collect' or 'map'


how about

title.capitalize.map {|t| "\t -- #{author[t]},\"#{t}\""}


--
Simon Strandgaard