Hook called by Ruby if Filter is subclassed
# File lib/bibtex/filters.rb, line 9 def inherited(base) base.class_eval { include Singleton } subclasses << base end
Returns a list of all current Filters
# File lib/bibtex/filters.rb, line 15 def subclasses @subclasses ||= [] end
# File lib/bibtex/filters.rb, line 20 def apply(value) value end