title: Regex to replace all occurences of space with plus sign within the href attribute in mod_substitute
body: <p>Here's my problem. I want to change all the occurrence of blank spaces in the href attribute of the response HTML to the plus (+) sign.</p>
  
  <pre><code>href="example.com/sites/site-name/index.page?path=categotry1/category2/sub category1/file.xml"
  </code></pre>
  
  <p>should get change to:</p>
  
  <pre><code>href="example.com/sites/site-name/index.page?path=categotry1/category2/sub+category1/file.xml"
  </code></pre>
  
  <p>I am using apache mod_substitute.</p>
  
  <p>Thanks</p>