Class: PageTemplate::FilterCommand

Inherits:
StackableCommand show all
Defined in:
lib/PageTemplate/commands.rb

Overview

FilterCommand filters its block through a preprocessor

[% filter :processor %]text[% end %]

Instance Attribute Summary

Attributes inherited from Command

#called_as

Instance Method Summary collapse

Methods inherited from StackableCommand

#end, #to_s

Methods inherited from Command

#to_s

Constructor Details

#initialize(filter) ⇒ FilterCommand

Returns a new instance of FilterCommand.



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# File 'lib/PageTemplate/commands.rb', line 230

def initialize(filter)
  @called_as = "filter"
  @processor = filter
  @text = []
end

Instance Method Details

#add(line) ⇒ Object 



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# File 'lib/PageTemplate/commands.rb', line 236

def add(line)
  @text.push(line)
end

#output(namespace = nil) ⇒ Object 



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# File 'lib/PageTemplate/commands.rb', line 240

def output(namespace=nil)
  parser = namespace.parser if namespace
  parser = Parser.recent_parser unless parser
  namespace ||= parser
  preprocessor = parser.preprocessor
  processor = @processor || parser.default_processor
  text = ""
  @text.each { |c| text += c.output(namespace) }
  if preprocessor.respond_to?(processor)
    preprocessor.send(processor, text)
  else
    "[ ValueCommand: unknown preprocessor #{@processor} ]"
  end
end