module Psych module Visitors class Emitter < Psych::Visitors::Visitor def initialize io, options = {} opts = [:indentation, :canonical, :line_width].find_all { |opt| options.key?(opt) } if opts.empty? @handler = Psych::Emitter.new io else du = Handler::DumperOptions.new opts.each { |option| du.send :"#{option}=", options[option] } @handler = Psych::Emitter.new io, du end end def visit_Psych_Nodes_Stream o @handler.start_stream o.encoding o.children.each { |c| accept c } @handler.end_stream end def visit_Psych_Nodes_Document o @handler.start_document o.version, o.tag_directives, o.implicit o.children.each { |c| accept c } @handler.end_document o.implicit_end end def visit_Psych_Nodes_Scalar o @handler.scalar o.value, o.anchor, o.tag, o.plain, o.quoted, o.style end def visit_Psych_Nodes_Sequence o @handler.start_sequence o.anchor, o.tag, o.implicit, o.style o.children.each { |c| accept c } @handler.end_sequence end def visit_Psych_Nodes_Mapping o @handler.start_mapping o.anchor, o.tag, o.implicit, o.style o.children.each { |c| accept c } @handler.end_mapping end def visit_Psych_Nodes_Alias o @handler.alias o.anchor end end end end