Key bindings

Key Binding	Meaning	Equivalent command
F2	Switch filter mode	filter
F5	Refresh the interface	list
F6	Move to parent frame in the backtrace	up
Shift F6	Move to child frame in the backtrace	down
F7	Detect and step into a method call or block on the current line	step
Shift F7	Finish execution of the current frame and jump to the next line of the parent frame	step-out
F8	Move to the next line	next
F9, Ctrl+D	Continue the execution of your program until exit, or stop at the next break point	continue

You can always customize the key bindings set by putting a simple setting in the configuration file. The list of natively supported key binding is defined in this file.

config.key_bindings = {
  RubyJard::Keys::CTRL_N        => 'jard filter switch',
  RubyJard::Keys::META_L        => 'list',
  RubyJard::Keys::CTRL_F1       => 'up',
  RubyJard::Keys::CTRL_SHIFT_F1 => 'down',
  RubyJard::Keys::META_D        => 'step',
  RubyJard::Keys::META_O        => 'step-out',
  RubyJard::Keys::CTRL_META_N   => 'next',
  RubyJard::Keys::META_F1       => 'continue',
  RubyJard::Keys::META_SHIFT_F1 => 'continue',
  RubyJard::Keys::CTRL_C        => 'interrupt'
}

Jard also supports non-traditional and machine-dependent key bindings. For example, to map the Ctrl+Home key combination to the next command, you first need to get the code sequences of this combination. Let's run the following ruby program inside your terminal, press Ctrl+Home, copy the output, then put it into the configuration file.

require 'io/console'

STDOUT.raw!
begin
  loop do
    begin
      data = STDIN.read_nonblock(255)
      exit if data == "\u0003"
      print data.inspect
    rescue IO::WaitReadable; sleep 0.1; end
  end
ensure
  STDOUT.cooked!
end

Capture raw key sequences. Click to enlarge.

In my machine, the above program prints "\e[1;5H". My configuration to map Ctrl+Home to next command looks like this:

config.key_bindings = {
  "\e[1;5H" => 'next'
}

If the above program doesn't print any output, it means the key combination is conflicted or already handled by some programs in your environment. Please pick another one.