Module: TextTube::Filterable

Defined in:
lib/texttube/filterable.rb

Overview

Add this to your filter module.

Examples:

module AFilter
  extend TextTube::Filterable

  filter_with :double do |text|
    text * 2
  end

  filter_with :triple do |text|
    text * 3
  end
end

Instance Method Summary collapse

Instance Method Details

#filter_with(name) {|String, Hash| ... } ⇒ Object

Add a filter.

Examples:

filter_with :triple do |text|
  text * 3
end
filter_with :number do |text,options|
  text * options[:times].to_i
end

Parameters:

  • name (#to_sym)

Yields:

  • (String, Hash) —

    Pass the string to be filtered, and optionally, any options.



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# File 'lib/texttube/filterable.rb', line 34

def filter_with name, &block
  name = name.to_sym
  filters << name unless filters.include? name
  define_method name do |current=self, options=nil|
    options = [options, @options, self.class.options].find{|opts|
      !opts.nil? && 
      opts.respond_to?(:keys) && 
      !opts.empty?
    } || {}

    block.call current, (options[name] || {})
  end
end

#filters ⇒ Array<Symbol>

See all current filters.

Returns:

  • (Array<Symbol>) 


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# File 'lib/texttube/filterable.rb', line 20

def filters
  @filters ||= []
end