category.rb in instiki-0.10.0

- old
+ new
@@ -1,31 +1,33 @@
-require 'chunks/chunk'
-
-# The category chunk looks for "category: news" on a line by
-# itself and parses the terms after the ':' as categories.
-# Other classes can search for Category chunks within
-# rendered content to find out what categories this page
-# should be in.
-#
-# Category lines can be hidden using ':category: news', for example
-class Category < Chunk::Abstract
-  def self.pattern() return /^(:)?category\s*:(.*)$/i end
-
-  attr_reader :hidden, :list
-
-  def initialize(match_data)
-    super(match_data)
-	@hidden = match_data[1]
-    @list = match_data[2].split(',').map { |c| c.strip }
-  end
-
-  # Mark this chunk's start and end points but allow the terms
-  # after the ':' to be marked up.
-  def mask(content) pre_mask + list.join(', ') + post_mask end
-
-  # If the chunk is hidden, erase the mask and return this chunk
-  # otherwise, surround it with a 'div' block.
-  def unmask(content)
-	replacement = ( hidden ? '' : '<div class="property">category:\1</div>' )
-    self if content.sub!( Regexp.new( pre_mask+'(.*)?'+post_mask ), replacement )
-  end
-end
+require 'chunks/chunk'
+
+# The category chunk looks for "category: news" on a line by
+# itself and parses the terms after the ':' as categories.
+# Other classes can search for Category chunks within
+# rendered content to find out what categories this page
+# should be in.
+#
+# Category lines can be hidden using ':category: news', for example
+class Category < Chunk::Abstract
+  CATEGORY_PATTERN = /^(:)?category\s*:(.*)$/i
+  def self.pattern() CATEGORY_PATTERN  end
+
+  attr_reader :hidden, :list
+
+def initialize(match_data, content)
+    super(match_data, content)
+    @hidden = match_data[1]
+    @list = match_data[2].split(',').map { |c| c.strip }
+    @unmask_text = ''
+    if @hidden
+      @unmask_text = ''
+    else
+      category_urls = @list.map { |category| url(category) }.join(', ')
+      @unmask_text = '<div class="property"> category: ' + category_urls + '</div>'
+    end
+  end
+
+  # TODO move presentation of page metadata to controller/view
+  def url(category)
+    %{<a class="category_link" href="../list/?category=#{category}">#{category}</a>}
+  end
+end