title: How to remove newline from previous line based on current line's first character?
body: <p>I exported some data in CSV format that has some line breaks within text fields. I can't get Excel to handle this correctly. I'd like to just edit the file to remove these line breaks.</p>
  
  <p>A valid record begins with a number. I've tried putting <code>\n^([^\d])</code> in the "Find what" box of Notepad++'s find/replace, to match any line beginning with a non-number and the preceding newline. It matches correctly. In the "replace with" box, I put a space followed by <code>\1</code> to replace the newline with a space and leave the matched character. However, the replace isn't working at all, nothing gets changed.</p>
  
  <p>What am I doing wrong?</p>
  
  <p>Sample text:</p>
  
  <pre><code>123,0,1,"This is a single line comment","bob","jim"
  124,0,1,"This is a multi line comment w/ newline.
  This is the second line of the comment","ted","alfred"
  125,0,1,"This is another single line comment","jim","bob"
  </code></pre>
  
  <p>I want to replace the newline just before "This is the second..." with a space so that the file looks like this:</p>
  
  <pre><code>123,0,1,"This is a single line comment","bob","jim"
  124,0,1,"This is a multi line comment w/ newline. This is the second line of the comment","ted","alfred"
  125,0,1,"This is another single line comment","jim","bob"
  </code></pre>