This post originated from an RSS feed registered with Ruby Buzz
by Joey Gibson.
Original Post: By Popular Demand, I Give You... Mixer!
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"Popular demand," yeah... right... That's the ticket. Anyway, I saw this blog
entry by Jamie this morning which
caused me to write a Ruby
program to mix up the letters of words, leaving the first and last
letter as they were. I started out with a simple script, then I added
better punctuation support, then I converted it to a class, then I
wrote unit tests to run it. Anyway, somebody wanted to see it, so here it
is. Is it great code? Probably not. Do I care? Not really.
1 class Mixer
2 private
3 def randomize(str)
4 if str.length < 4
5 return str
6 end
7
8 letters = str.split(//)
9
10 first = letters[0]
11 mid = letters[1..(letters.length - 2)]
12 last = letters[letters.length - 1]
13
14 new_letters = ""
15
16 while mid && mid.length > 0
17 len = mid.length
18 r = rand(len)
19 new_letters << mid.delete_at(r)
20 end
21
22 first + new_letters + last
23 end
24
25 public
26 def mix_file(filename)
27 lines = IO.readlines(filename)
28
29 mix_lines(lines)
30 end
31
32 def mix_string(str)
33 new_str = ""
34
35 mix_lines(str.split).each do |line|
36 new_str << line
37 end
38
39 new_str
40 end
41
42 def mix_lines(lines)
43 lines.collect! do |line|
44 new_line = ""
45
46 line.split(/\s+|,|\.|\!|\(|\)|\"|\'/).each do |word|
47 new_line << randomize(word) << " "
48 end
49
50 new_line
51 end
52
53 lines
54 end
55<
1000
;/font> end
And the unit tests, which don't actually test anything.
the thing.
1 require 'test/unit'
2 require 'mix'
3
4 class MixTest < Test::Unit::TestCase
5 def setup()
6 @mixer = Mixer.new
7 end
8
9 def test_word()
10 x = @mixer.mix_string("testing")
11 puts x
12 assert_not_equal("testing", x, "String not randomized")
13 end
14
15 def test_string()
16 x = @mixer.mix_string("this is a humongous test, dangit")
17 puts x
18 end
19
20 def test_file()
21 article = @mixer.mix_file("testfile.txt")
22 #puts article
23 end
24 end
I'm sure someone will find this useful... Again, "yeah, right." Ah
well, it was a mildly amusing diversion...
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