Class: Hoe::ManualGen::PageFilter

Inherits:
Object
  • Object
show all
Includes:
Logging, Singleton
Defined in:
lib/hoe/manualgen.rb

Overview

An abstract filter class for manual content transformation.

Direct Known Subclasses

ErbFilter, TextileFilter

Class Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Class Attribute Details

.derivatives ⇒ Object (readonly)

Returns the value of attribute derivatives.



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# File 'lib/hoe/manualgen.rb', line 486

def derivatives
  @derivatives
end

Class Method Details

.inherited(subclass) ⇒ Object

Inheritance callback – keep track of all inheriting classes for later.



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# File 'lib/hoe/manualgen.rb', line 490

def self::inherited( subclass )
	key = subclass.name.
		sub( /^.*::/, '' ).
		gsub( /[^[:alpha:]]+/, '_' ).
		downcase.
		sub( /filter$/, '' )

	self.derivatives[ key ] = subclass
	self.derivatives[ key.to_sym ] = subclass

	super
end

Instance Method Details

#export_resources(output_dir) ⇒ Object

Export any static resources required by this filter to the given output_dir.



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# File 'lib/hoe/manualgen.rb', line 505

def export_resources( output_dir )
	# No-op by default
end

#process(source, page, metadata) ⇒ Object

Process the page‘s source with the filter and return the altered content.

Raises:

  • (NotImplementedError) 


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# File 'lib/hoe/manualgen.rb', line 511

def process( source, page, metadata )
	raise NotImplementedError,
		"%s does not implement the #process method" % [ self.class.name ]
end