Fix #2894: Use [[:space:]] instead of \s in regexes.

app/models/artist.rb

@@ -233,7 +233,7 @@ class Artist < ApplicationRecord
     end
 
     def other_names_array
-      other_names.try(:split, /\s/)
+      other_names.try(:split, /[[:space:]]+/)
     end
 
     def other_names_comma

app/models/artist_version.rb

@@ -48,11 +48,11 @@ class ArtistVersion < ApplicationRecord
   extend SearchMethods
 
   def url_array
-    url_string.to_s.scan(/\S+/)
+    url_string.to_s.split(/[[:space:]]+/)
   end
 
   def other_names_array
-    other_names.to_s.scan(/\S+/)
+    other_names.to_s.split(/[[:space:]]+/)
   end
 
   def urls_diff(version)

app/models/comment.rb

@@ -3,7 +3,7 @@ class Comment < ApplicationRecord
 
   validate :validate_post_exists, :on => :create
   validate :validate_creator_is_not_limited, :on => :create
-  validates_format_of :body, :with => /\S/, :message => 'has no content'
+  validates_presence_of :body, :message => "has no content"
   belongs_to :post
   belongs_to_creator
   belongs_to_updater

app/models/dmail.rb

@@ -8,13 +8,8 @@ class Dmail < ApplicationRecord
 
   include Rakismet::Model
 
-  with_options on: :create do
-    validates_presence_of :to_id
-    validates_presence_of :from_id
-    validates_format_of :title, :with => /\S/
-    validates_format_of :body, :with => /\S/
-    validate :validate_sender_is_not_banned
-  end
+  validates_presence_of :title, :body, on: :create
+  validate :validate_sender_is_not_banned, on: :create
 
   belongs_to :owner, :class_name => "User"
   belongs_to :to, :class_name => "User"
@@ -217,7 +212,7 @@ class Dmail < ApplicationRecord
   extend SearchMethods
 
   def validate_sender_is_not_banned
-    if from.is_banned?
+    if from.try(:is_banned?)
       errors[:base] << "Sender is banned and cannot send messages"
       return false
     else

app/models/dmail_filter.rb

@@ -18,6 +18,6 @@ class DmailFilter < ApplicationRecord
   end
 
   def regexp
-    @regexp ||= Regexp.compile('\b(?:' + words.scan(/\S+/).map {|x| Regexp.escape(x)}.join("|") + ')\b')
+    @regexp ||= /\b#{Regexp.union(words.split(/[[:space:]]+/))}\b/
   end
 end

app/models/favorite_group.rb

@@ -108,7 +108,7 @@ class FavoriteGroup < ApplicationRecord
   end
 
   def self.normalize_name(name)
-    name.gsub(/\s+/, "_")
+    name.gsub(/[[:space:]]+/, "_")
   end
 
   def normalize_name

app/models/post.rb

@@ -970,7 +970,7 @@ class Post < ApplicationRecord
     end
 
     def clean_fav_string!
-      array = fav_string.scan(/\S+/).uniq
+      array = fav_string.split.uniq
       self.fav_string = array.join(" ")
       self.fav_count = array.size
       update_column(:fav_string, fav_string)
@@ -1113,7 +1113,7 @@ class Post < ApplicationRecord
     end
 
     def set_pool_category_pseudo_tags
-      self.pool_string = (pool_string.scan(/\S+/) - ["pool:series", "pool:collection"]).join(" ")
+      self.pool_string = (pool_string.split - ["pool:series", "pool:collection"]).join(" ")
 
       pool_categories = pools.undeleted.pluck(:category)
       if pool_categories.include?("series")
@@ -1157,7 +1157,7 @@ class Post < ApplicationRecord
     def fast_count(tags = "", options = {})
       tags = tags.to_s
       tags += " rating:s" if CurrentUser.safe_mode?
-      tags += " -status:deleted" if CurrentUser.hide_deleted_posts? && tags !~ /(?:^|\s)(?:-)?status:.+/
+      tags += " -status:deleted" if CurrentUser.hide_deleted_posts? && !Tag.has_metatag?(tags, "status", "-status")
       tags = Tag.normalize_query(tags)
 
       # optimize some cases. these are just estimates but at these

app/models/post_archive.rb

@@ -88,7 +88,7 @@ class PostArchive < ApplicationRecord
   include ArchiveServiceMethods
 
   def tag_array
-    tags.scan(/\S+/)
+    tags.split
   end
 
   def presenter

app/models/post_version.rb

@@ -51,7 +51,7 @@ class PostVersion < ApplicationRecord
   end
 
   def tag_array
-    @tag_array ||= tags.scan(/\S+/)
+    @tag_array ||= tags.split
   end
 
   def reload

app/models/tag.rb

@@ -179,7 +179,7 @@ class Tag < ApplicationRecord
           while counts.empty? && n < 1000
             tag_strings = Post.select_values_sql("select tag_string from posts where created_at >= ?", n.hours.ago)
             tag_strings.each do |tag_string|
-              tag_string.scan(/\S+/).each do |tag|
+              tag_string.split.each do |tag|
                 counts[tag] ||= 0
                 counts[tag] += 1
               end

app/models/upload.rb

@@ -239,8 +239,8 @@ class Upload < ApplicationRecord
   end
 
   def assign_rating_from_tags
-    if tag_string =~ /(?:\s|^)rating:([qse])/i
-      self.rating = $1.downcase
+    if rating = Tag.has_metatag?(tag_string, :rating)
+      self.rating = rating.downcase
     end
   end
 

app/models/wiki_page.rb

@@ -234,6 +234,6 @@ class WikiPage < ApplicationRecord
   end
 
   def other_names_array
-    other_names.to_s.scan(/\S+/)
+    other_names.to_s.split(/[[:space:]]+/)
   end
 end

app/models/wiki_page_version.rb

@@ -47,6 +47,6 @@ class WikiPageVersion < ApplicationRecord
   end
 
   def other_names_array
-    other_names.to_s.scan(/\S+/)
+    other_names.to_s.split(/[[:space:]]+/)
   end
 end