Fixed indenting

TextWrangler for the lose. I either need to learn Vim or buy TextMate
for the home computer.

init.rb

@@ -4,7 +4,7 @@
 
 $stdin.each do |test|
   filtered_text = Luhnybin.filter(test)
-	begin
+  begin
     puts filtered_text
     $stdout.flush
   rescue Errno::EPIPE

lib/luhn.rb

@@ -1,20 +1,20 @@
 class Integer
-	def valid_luhn?
-		digits = [] 
-		
-		self.to_s.reverse.chars.each_with_index do |digit, i|
-			if i % 2 != 0
-				double_digit = (digit.to_i * 2).to_s
-				if double_digit.size > 1
-					double_digit = double_digit[0].to_i + double_digit[1].to_i
-				end
-				digits << double_digit
-			else
-				digits << digit
-			end
-		end
-		
-		digits.inject(0) { |sum, n| sum + n.to_i } % 10 == 0
-	end
-	
+  def valid_luhn?
+    digits = [] 
+    
+    self.to_s.reverse.chars.each_with_index do |digit, i|
+      if i % 2 != 0
+        double_digit = (digit.to_i * 2).to_s
+        if double_digit.size > 1
+          double_digit = double_digit[0].to_i + double_digit[1].to_i
+        end
+        digits << double_digit
+      else
+        digits << digit
+      end
+    end
+    
+    digits.inject(0) { |sum, n| sum + n.to_i } % 10 == 0
+  end
+  
 end

lib/luhnybin.rb

@@ -2,32 +2,32 @@
 
 class Luhnybin
 
-	def	self.filter(input)
-		@text = input
-		
-		check_for_possible_matches
-		filter_text
-		
-		@text
-	end
-	
-	def	self.check_for_possible_matches
-		@matches = []
-		0.upto(@text.length) do	|pos|
-			12.upto(17) do |length|
-				m = /\d[\d\s-]{#{length}}\d/.match(@text, pos)
-				next unless (14..16).include?(m.to_s.scan(/\d/).size)
-				next unless m.to_s.scan(/\d/).join.to_i.valid_luhn?
-				
-				@matches << m.offset(0) unless m.nil?
-			end
-		end
-	end
-	
-	def self.filter_text
-		@matches.each do |m|
-			@text[m[0], m[1]-m[0]] = @text[m[0], m[1]-m[0]].gsub(/\d/, 'X')
-		end
-	end
+  def  self.filter(input)
+    @text = input
+    
+    check_for_possible_matches
+    filter_text
+    
+    @text
+  end
+  
+  def  self.check_for_possible_matches
+    @matches = []
+    0.upto(@text.length) do  |pos|
+      12.upto(17) do |length|
+        m = /\d[\d\s-]{#{length}}\d/.match(@text, pos)
+        next unless (14..16).include?(m.to_s.scan(/\d/).size)
+        next unless m.to_s.scan(/\d/).join.to_i.valid_luhn?
+        
+        @matches << m.offset(0) unless m.nil?
+      end
+    end
+  end
+  
+  def self.filter_text
+    @matches.each do |m|
+      @text[m[0], m[1]-m[0]] = @text[m[0], m[1]-m[0]].gsub(/\d/, 'X')
+    end
+  end
 
-end
+end

mask.sh

@@ -1,4 +1,4 @@
 #!/bin/sh
 
 # Call your program here instead of cat.
-./init.rb
+./init.rb