title: Scrapy following links that match a regular expression
body: <p>I am new to using scrapy and regular expressions but after research they seem to be my best solution to extract links I want scrapy to follow. I am trying to follow links from my start URL that only contain a specific state abbreviation but the issue I am having is the URL containing the abbreviation is not uniform they have different lengths, different numbers of leading and trailing characters and for the life of me can't figure out the correct regex to feed scrapy to follow the links I want. Any help with this will be greatly appreciated.</p>
  
  <p>Sorry for not giving any examples the links look like this</p>
  
  <pre><code>/813rents-Inc_Tampa_FL__148254837
  /A-Amp-M-Realty_Riverview_FL_92361_037984837
  /A-Altieri_Tampa_FL_1257391_877954837
  </code></pre>