4% speedup on our test suite

app/models/post.rb

@@ -125,7 +125,6 @@ class Post < ActiveRecord::Base
     Plugin::Filter.apply(:after_post_cook, self, post_analyzer.cook(*args))
   end
 
-
   # Sometimes the post is being edited by someone else, for example, a mod.
   # If that's the case, they should not be bound by the original poster's
   # restrictions, for example on not posting images.

app/models/post_analyzer.rb

@@ -42,6 +42,7 @@ class PostAnalyzer
   # How many attachments are present in the post
   def attachment_count
     return 0 unless @raw.present?
+
     attachments = cooked_document.css("a.attachment[href^=\"#{Discourse.store.absolute_base_url}\"]")
     attachments += cooked_document.css("a.attachment[href^=\"#{Discourse.store.relative_base_url}\"]") if Discourse.store.internal?
     attachments.count
@@ -49,30 +50,25 @@ class PostAnalyzer
 
   def raw_mentions
     return [] if @raw.blank?
-
-    # We don't count mentions in quotes
     return @raw_mentions if @raw_mentions.present?
-    raw_stripped = @raw.gsub(/\[quote=(.*)\]([^\[]*?)\[\/quote\]/im, '')
 
-    # Process markdown so that code blocks can be generated and subsequently ignored
-    raw_stripped = PrettyText.markdown(raw_stripped)
+    # strip quotes and code blocks
+    cooked_stripped = cooked_document
+    cooked_stripped.search("aside.quote").remove
+    cooked_stripped.search("pre").remove
+    cooked_stripped.search("code").remove
 
-    # Strip pre and code tags
-    doc = Nokogiri::HTML.fragment(raw_stripped)
-    doc.search("pre").remove
-    doc.search("code").remove
-
-    results = doc.to_html.scan(PrettyText.mention_matcher)
+    results = cooked_stripped.to_html.scan(PrettyText.mention_matcher)
     @raw_mentions = results.uniq.map { |un| un.first.downcase.gsub!(/^@/, '') }
   end
 
   # Count how many hosts are linked in the post
   def linked_hosts
     return {} if raw_links.blank?
-
     return @linked_hosts if @linked_hosts.present?
 
     @linked_hosts = {}
+
     raw_links.each do |u|
       begin
         uri = URI.parse(u)
@@ -83,23 +79,24 @@ class PostAnalyzer
         next
       end
     end
+
     @linked_hosts
   end
 
   # Returns an array of all links in a post excluding mentions
   def raw_links
-
     return [] unless @raw.present?
-
     return @raw_links if @raw_links.present?
 
     # Don't include @mentions in the link count
     @raw_links = []
+
     cooked_document.search("a").each do |l|
       next if l.attributes['href'].nil? || link_is_a_mention?(l)
       url = l.attributes['href'].to_s
       @raw_links << url
     end
+
     @raw_links
   end