Split a string in to words and numbers
<p>I have a string as below.</p>

<blockquote>
  <p><code>sil(0.14,0.25) in(0.25,0.82) order(0.82,1.03) to(1.03,1.17) entertain(1.17,1.94) the(1.94,2.04) people(2.04,2.41) who(2.41,2.54) are(2.54,2.6) listening(2.6,3.13) to(3.13,3.29)</code> you, ..........</p>
</blockquote>

<p>I have split the string as follow.</p>

<blockquote>
<pre><code>sil
0.14
0.25

in
0.25
0.82

order
0.82
1.03

to
1.03
1.17
</code></pre>
</blockquote>

<p>What I want is to find the difference between the two numbers after each word. 
eg :  sil = 0.25 - 0.14
      in =  0.82 - 0.25</p>

<p>Please let me know how to do this task.</p>

<p>Thaks a lot.</p>
