title: Find JSON strings in a string
body: <p>I am looking for a way to find JSON data in a string. Think about it like wordpress shortcodes. I figure the best way to do it would be a regular Expression. I do not want to parse the JSON, just find all occurences.</p>
  
  <p>Is there a way in regex to have matching numbers of parentheses? Currently I run into that problem when having nested objects.</p>
  
  <p>Quick example for demonstration:</p>
  
  <pre><code>This is a funny text about stuff,
  look at this product {"action":"product","options":{...}}.
  More Text is to come and another JSON string
  {"action":"review","options":{...}}
  </code></pre>
  
  <p>As a result i would like to have the two JSON strings.
  Thanks!</p>