diff options
Diffstat (limited to 'ruby_1_9_3/ext/psych/lib/psych/visitors/emitter.rb')
-rw-r--r-- | ruby_1_9_3/ext/psych/lib/psych/visitors/emitter.rb | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/ruby_1_9_3/ext/psych/lib/psych/visitors/emitter.rb b/ruby_1_9_3/ext/psych/lib/psych/visitors/emitter.rb new file mode 100644 index 0000000000..c886e5092e --- /dev/null +++ b/ruby_1_9_3/ext/psych/lib/psych/visitors/emitter.rb @@ -0,0 +1,51 @@ +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 |