Class: SGF::Parser

Inherits:

Object

• Object
• SGF::Parser

Defined in:

lib/sgf/parser.rb

Overview

The parser returns a SGF::Collection representation of the SGF file parser = SGF::Parser.new collection = parser.parse sgf_in_string_form

Constant Summary

NEW_NODE =

";"

BRANCHING =

%w{( )}

END_OF_FILE =

false

NODE_DELIMITERS =

[NEW_NODE].concat(BRANCHING).concat([END_OF_FILE])

PROPERTY =

%w([ ])

LIST_IDENTITIES =

%w(AW AB AE AR CR DD LB LN MA SL SQ TR VW TB TW)

Instance Method Summary

• #parse(sgf, strict_parsing = true) ⇒ Object

  This takes as argument an SGF and returns an SGF::Collection object It accepts a local path (String), a stringified SGF (String), or a file handler (File).

Instance Method Details

#parse(sgf, strict_parsing = true) ⇒ Object

This takes as argument an SGF and returns an SGF::Collection object It accepts a local path (String), a stringified SGF (String), or a file handler (File). The second argument is optional, in case you don’t want this to raise errors. You probably shouldn’t use it, but who’s gonna stop you?

# File 'lib/sgf/parser.rb', line 22

def parse sgf, strict_parsing = true
  error_checker = strict_parsing ? SGF::StrictErrorChecker.new : SGF::LaxErrorChecker.new
  @sgf_stream = SGF::Stream.new(sgf, error_checker)
  @assembler = SGF::CollectionAssembler.new
  until @sgf_stream.eof?
    case @sgf_stream.next_character
    when "(" then @assembler.open_branch
    when ";" then
      parse_node_data
      @assembler.create_node_with_properties @node_properties
    when ")" then @assembler.close_branch
    else next
    end
  end
  @assembler.collection
end