Module: TraceableYAML

Defined in:
lib/traceable.rb

Class Method Summary collapse

Class Method Details

.load_file(path, tag) ⇒ Object

Load a YAML document from the file path, tagging each value with the source tag, and return a Ruby object tree representing the result.



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# File 'lib/traceable.rb', line 211

def self.load_file(path, tag)
  File.open(path) do |f|
    parse(f.read, tag)
  end
end

.parse(doc, tag) ⇒ Object

Parse a YAML document from the string doc, tagging each value with the source tag, and return a Ruby object tree representing the result.



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# File 'lib/traceable.rb', line 192

def self.parse(doc, tag)
  handler = PositionHandler.new(tag)
  parser = Psych::Parser.new(handler)
  handler.parser = parser
  parser.parse doc
  if PositionVisitor.respond_to?(:create)
    # Ruby 2.1 and above
    visitor = PositionVisitor.create
  else
    # Ruby 2.0
    visitor = PositionVisitor.new
  end
  tree = visitor.accept(handler.root)
  tree[0]
end