Method: Yap::Shell::Repl#on_input

Defined in:
lib/yap/shell/repl.rb

#on_input(&blk) ⇒ Object 



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# File 'lib/yap/shell/repl.rb', line 23

def on_input(&blk)
  @blk = blk

  @world.editor.on_read_line do |event|
    line_read = event[:payload][:line]
    Treefell['shell'].puts "editor line read: #{line_read.inspect}"
    # editor.history = true?
    line = line_read << "\n"
    begin
      @blk.call(line)
      @world.editor.redraw_prompt
    rescue Yap::Shell::Parser::Lexer::NonterminatedString,
      Yap::Shell::Parser::Lexer::LineContinuationFound => ex
      Treefell['shell'].puts "rescued #{ex}, asking user for more input"
      more_input = read_another_line_of_input
      if more_input
        line << more_input
        retry
      end
    rescue ::Yap::Shell::CommandUnknownError => ex
      Treefell['shell'].puts "rescued #{ex}, telling user"
      puts "  CommandError: #{ex.message}"
    rescue ::Yap::Shell::Parser::ParseError => ex
      Treefell['shell'].puts "rescued #{ex}, telling user"
      puts "  Parse error: #{ex.message}"
    ensure
      @world.editor.reset_line
    end

    ensure_process_group_controls_the_tty
    @world.refresh_prompt
  end
end