instiki/app/models/chunks/category.rb
2005-01-15 20:26:54 +00:00

32 lines
1.1 KiB
Ruby
Executable file

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