Class: Groonga::Command::Parser::CommandLineSplitter

Inherits:
Object
  • Object
show all
Defined in:
lib/groonga/command/parser/command-line-splitter.rb

Instance Method Summary collapse

Constructor Details

#initialize(command_line) ⇒ CommandLineSplitter

Returns a new instance of CommandLineSplitter.



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# File 'lib/groonga/command/parser/command-line-splitter.rb', line 24

def initialize(command_line)
  @command_line = command_line
end

Instance Method Details

#split ⇒ Object 



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# File 'lib/groonga/command/parser/command-line-splitter.rb', line 28

def split
  tokens = []
  scanner = StringScanner.new(@command_line)
  skip_spaces(scanner)
  start_quote = nil
  until scanner.eos?
    if start_quote
      token = ""
      loop do
        chunk = scanner.scan_until(/#{Regexp.escape(start_quote)}/)
        if chunk.nil?
          token = start_quote + token + scanner.rest
          scanner.terminate
          break
        end
        if chunk[-2] == "\\"
          token << chunk
        else
          token << chunk.chomp(start_quote)
          break
        end
      end
      tokens << unescape(token)
      start_quote = nil
      skip_spaces(scanner)
    else
      start_quote = scanner.scan(/['"]/)
      if start_quote.nil?
        tokens << scanner.scan_until(/\S+/)
        skip_spaces(scanner)
      end
    end
  end
  tokens
end