Class: Neo4j::AsciidoctorExtensions::AttributeUpdateTreeProcessor

Inherits:
Extensions::TreeProcessor
  • Object
show all
Defined in:
lib/neo4j/asciidoctor/extensions/attribute_update/extension.rb

Overview

A tree processor that update an attribute depending on a given rule.

Direct Known Subclasses

StageSlugTreeProcessor

Instance Method Summary collapse

Instance Method Details

#process(document) ⇒ Object 



15
16
17
18
19
20
21
22
23
 
# File 'lib/neo4j/asciidoctor/extensions/attribute_update/extension.rb', line 15

def process(document)
  if (attribute_name = @config[:attr_name]) &&
     (current_value = document.attr attribute_name) &&
     (update_rule = @config[:update_rule])
    new_value = update_rule.call(document, current_value)
    document.set_attr attribute_name, new_value if new_value != current_value
  end
  document
end