title: Split a column into mutiple columns based on different symbols
body: <p>I have a dataframe like this:</p>
  
  <pre><code> V1  V2  V3
   a   b  X:12..500(1)
   c   d  Y:34..1000(-1)
  </code></pre>
  
  <p>And I want to split the last column into different columns </p>
  
  <pre><code>V1  V2  V3  V4  V5  V6
  a   b   X   12  500  1
  c   d   Y   34  1000 -1
  </code></pre>
  
  <p>I have tried to use "str_split" in package "stringr", but it seems could not recognize ".."</p>
  
  <pre><code> test &lt;-data.frame(str_split_fixed(df$V3,":",2))
  </code></pre>
  
  <p>I believe there is many other ways to do it. Thanks </p>