title: Using Regexp to check whether a string starts with a consonant
body: <p>Is there a better way to write the following regular expression in Ruby? The first regex matches a string that begins with a (lower case) consonant, the second with a vowel.</p>
  
  <p>I'm trying to figure out if there's a way to write a regular expression that matches the negative of the second expression, versus writing the first expression with several ranges.</p>
  
  <pre><code>string =~ /\A[b-df-hj-np-tv-z]/
  string =~ /\A[aeiou]/
  </code></pre>