devroom.io/content/posts/2007-08-21-using-iconv-to-convert-utf-8-to-ascii-on-linux.md

+++
date = "2007-08-21"
title = "Using Iconv to convert UTF-8 to ASCII (on Linux)"
tags = ["General", "RubyOnRails", "Features", "Ruby"]
slug = "using-iconv-to-convert-utf-8-to-ascii-on-linux"
description = "Text encoding is a mess. This will help you convert UTF-8 to ASCII on Linux using iconv."
+++

There are situations where you want to remove all the UTF-8 goodness from a string 
(mostly because of legacy systems you're working with). Now, this is rather easy to do.
I'll give you an example: `çéß`

Should be converted to `cess`. On my mac, I can simply use the following snippet to convert 
the string:

``` ruby
s = "çéß"
s = Iconv.iconv('ascii//translit', 'utf-8', s).to_s # returns "c'ess"
s.gsub(/\W/, '') # return "cess"
```

Very nice and all, but when I deploy to my Debian 4.0 linux system, the I get an error that 
tells me that invalid characters were present. Why? Because the Mac has unicode goodness built-in. 
Linux does not (in most cases).

So, how do you go about solving this? Easy! Get unicode support!

``` shell
sudo apt-get install unicode
```

Now, try again.

## Bonus

If you want to convert a sentence (or anything else with spaces in it), you'll notice that spaces are removed by the gsub command. I solve this by splitting up the string first into words. Convert the words and then joining the words together again.

``` ruby
words = s.split(" ")
words = words.collect do |word|
  word = Iconv.iconv('ascii//translit', 'utf-8', word).to_s
  word = word.gsub(/\W/,'')
end
words.join(" ")
```

Like this? Why not write a mix-in for String?