Ruby 1.9.3 リファレンスマニュアル > ライブラリ一覧 > psych/tree_builderライブラリ > Psych::TreeBuilderクラス > start_document

instance method Psych::TreeBuilder#start_document

start_document(version, tag_directives, implicit)

[TODO]

Handles start_document events with +version+, +tag_directives+, and +implicit+ styling.

See Psych::Handler#start_document

class Psych::TreeBuilder