How to convert a document into ASCII?

Question

So, for example you have a document: Ruby.txt, the contents of which are

RuBYrUbYRuByByurBRyuRuby

You for some reason need to convert the document's contents into ASCII code without printing it onto your screen (change the document's contents). How do you do that?

P.S. Sorry, no code to debug

Do you actually mean you want to print the ASCII character codes? It may already *be* in ASCII. — Dave Newton, Jun 20 '12 at 03:08
possible duplicate of [Getting an ascii character code in ruby - ? fails](http://stackoverflow.com/questions/1270209/getting-an-ascii-character-code-in-ruby-fails) — Michael Durrant, Jun 20 '12 at 03:15
@dave I meant binary code (e.g. 01,10,11,00,101011001110101000110011...) — Delta, Jun 20 '12 at 22:12
You mean *binary* then, a different question. If this is homework, please tag as such. What have you tried so far? — Dave Newton, Jun 20 '12 at 22:58

score 0 · Answer 1 · answered Jun 20 '12 at 03:15

0

"RuBYrUbYRuByByurBRyuRuby".unpack("c*")
 => [82, 117, 66, 89, 114, 85, 98, 89, 82, 117, 66, 121, 66, 121, 117, 114, 66, 82, 121, 117, 82, 117, 98, 121]

answered Jun 20 '12 at 03:15

Hooopo

1,380
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"ruby".unpack("b*") => ["01001110101011100100011010011110"] – Hooopo Jun 21 '12 at 01:56

score 0 · Answer 2 · answered Jun 20 '12 at 03:18

0

It can depend on your ruby version...
but this should work on both 1.8 and 1.9

1.9.3p194 :062 > "string".each_byte do |c|
1.9.3p194 :063 >     puts c.ord
1.9.3p194 :064?>   end
115
116
114
105
110
103
 => "string"

answered Jun 20 '12 at 03:18

Michael Durrant

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How to convert a document into ASCII?

2 Answers2