burke

~/scowl-6/final % egrep -h '([^s]s|z|j)ure$' * | sed 's/[sz]ure$/jure/g'                                                                                      burke@zaphod (18:09)
Rajure
Yurujure
enjure
meajure
clojure
expojure
injure
leijure
pleajure

burke

irb(main):001:0> require 'archive/tar'
/opt/local/lib/ruby1.9/gems/1.9.1/gems/archive-tar-0.9.0/lib/archive/tar/reader.rb:17: warning: else without rescue is useless
SyntaxError: /opt/local/lib/ruby1.9/gems/1.9.1/gems/archive-tar-0.9.0/lib/archive/tar/reader.rb:15: syntax error, unexpected ':', expecting keyword_then or ',' or ';' or '\n'
			when IO: parse(@source, full); @source.rewind
			        ^
/opt/local/lib/ruby1.9/gems/1.9.1/gems/archive-tar-0.9.0/lib/archive/tar/reader.rb:34: syntax error, unexpected ':', expecting keyword_then or ',' or ';' or '\n'
				when :file:       File.open(path, 'w') { |fio| fio.write(body) }
				           ^
/opt/local/lib/ruby1.9/gems/1.9.1/gems/archive-tar-0.9.0/lib/archive/tar/reader.rb:35: syntax error, unexpected keyword_when, expecting keyword_end
				when :directory:  FileUtils.mkdir(path)

burke

#!/usr/bin/env ruby
# -*- mode: ruby -*-

# Copyright Burke Libbey 2009, MIT License.

HOME_DIR      = "/Users/burke"                 # Home directory
SVN_DIR       = "#{HOME_DIR}/src/clojure/svn"  # Clojure SVN checkout path
BRANCHES_DIR  = "#{SVN_DIR}/branches"          # Clojure SVN branches path
TRUNK_DIR     = "#{SVN_DIR}/trunk"             # Clojure SVN trunk path
INSTALL_DIR   = "#{HOME_DIR}/lib/clj"          # Path to managed jar symlinks

burke

lambda{|n| n.zero? ? 1 : n * self.call(n-1)}

burke

fac = lambda{|n| n.zero? ? 1 : n * fac.call(n-1)} 

burke

# Ruby 1.8.7
lambda{|n| (fac=lambda{|n| n.zero? ? 1 : n * fac.call(n-1)}).call(n) }

# Ruby 1.9
->(n){(fac=->(n){n.zero? ? 1 : n * fac.(n-1)}).(n)}

burke

def Y 
  lambda { |f| f.call(f) }.call( 
    lambda do |g| 
      yield(lambda { |*n| g.call(g).call(*n) }) 
    end) 
end 
 
Y { |this| lambda { |n| n == 0 ? 1 : n * this.call(n - 1) } }.call(12) 
#=> 479001600

burke

(λ f. f 3) (λ x. x + 2)

burke

# Ruby 1.8.7
lambda{|f| f[3]}[lambda{|x| x+2}]

burke

# Ruby 1.9
->(f){f.(3)}.(->(x){x+2})