danbooru-style plugin

[wyrde]

Danbooru image boards have a handy "data-file-url" element in the "article" that includes the relative url of the image for that post. "Article" is also a container for the "a href".

Is there a way to get anticontainer to use the data-file-url? I've yet to figure out a way, but my understanding of regex and how AC functions is limited. (The thumbnail url's extension doesn't always match the image url.)

Notes:

• The index page and the container page both have the data-file-url element.
• data-id is used both in the index page and the container page to identify the post number

• The danbooru style image boards I've found use "_blah_booru.ext/post/number" for post urls, so this should match them:

  ^http(?:[s]{0,1}):\/\/(?:\w+)booru\.(?:\w+)\/posts\/(\d+)

(and that reaches my limit on regex (: )

danbooru: https://danbooru.donmai.us/posts Post format: https://danbooru.donmai.us/posts/2403447

Example "article"

<article itemscope itemtype="http://schema.org/ImageObject" id="post_2403447" class="post-preview post-status-has-parent" 
  data-id="2403447"
  data-has-sound="false"
  data-tags="1boy ahoge alpha_omega_nova belt blonde_hair bodysuit closed_eyes mt.somo multicolored_hair scar smile spoilers streaked_hair torn_clothes uchuu_patrol_luluco white_background yes-no_pillow"
  data-pools=""
  data-uploader="Zettamorose"
  data-approver-id=""
  data-rating="s"
  data-width="800"
  data-height="800"
  data-flags=""
  data-parent-id="2403445"
  data-has-children="false"
  data-score="0"
  data-views=""
  data-fav-count="0"
  data-pixiv-id="57589628"
  data-md5="069dc48e9e01b9c1636b0f320632b03e"
  data-file-ext="png"
  data-file-url=
      "/data/__alpha_omega_nova_uchuu_patrol_luluco_drawn_by_mt_somo__069dc48e9e01b9c1636b0f320632b03e.png"
  data-large-file-url=
      "/data/__alpha_omega_nova_uchuu_patrol_luluco_drawn_by_mt_somo__069dc48e9e01b9c1636b0f320632b03e.png"
  data-preview-file-url=
      "/data/preview/069dc48e9e01b9c1636b0f320632b03e.jpg"
  >
  <a href="/posts/2403447"><img itemprop="thumbnailUrl" src="/data/preview/069dc48e9e01b9c1636b0f320632b03e.jpg" alt="1boy ahoge alpha_omega_nova belt blonde_hair bodysuit closed_eyes mt.somo multicolored_hair scar smile spoilers streaked_hair torn_clothes uchuu_patrol_luluco white_background yes-no_pillow">
  </a>
</article>