title: regexReplace in String Manipulation KNIME
body: <p>I'm trying to remove the content of all cells that start with a character that is not a number using KNIME (v3.2.1). I have different ideas but nothing works. </p>
  
  <p>1) String Manipulation Node: <code>regexReplace(§column§,"^[^0-9].*","")</code></p>
  
  <p>The cells contain multiple lines, however only the first line is removed by this approach. </p>
  
  <p>2) String Manipulation Node: <code>regexMatcher($casrn_new$,"^[^0-9].*")</code> followed by Rule Engine Node to remove all columns that are "TRUE". </p>
  
  <p>The regexMatcher gives me "False" even for columns that should be "True" though. </p>
  
  <p>3) String Replacer Node: I inserted the expression <code>^[^0-9].*</code> into the Pattern column and selected "Replace whole String" but the regex is not recognised by that node so nothing gets replaced.</p>
  
  <p>Does anyone have a solution for any of those approaches or knows another Node that might do the job? Help is much appreciated!</p>