Class: Debugger::SetCommand

Inherits:
Command
  • Object
show all
Defined in:
lib/ruby-debug/commands/set.rb

Overview

Implements debugger “set” command.

Defined Under Namespace

Classes: SubcmdStruct2

Constant Summary collapse

Subcommands = 
[
   ['annotate', 2, false,
   "Set annotation level",
"0 == normal;
2 == output annotated suitably for use by programs that control 
ruby-debug."],
   ['args', 2, false,
   "Set argument list to give program being debugged when it is started",
"Follow this command with any number of args, to be passed to the program."],
   ['autoeval', 4, true,
    "Evaluate every unrecognized command"],
   ['autolist', 4, true,
    "Execute 'list' command on every breakpoint"],
   ['autoirb', 4, true,
    "Invoke IRB on every stop"],
   ['autoreload', 4, true,
    "Reload source code when changed"],
   ['basename', 1, true,
    "Report file basename only showing file names"],
   ['callstyle', 2, false,
    "Set how you want call parameters displayed"],
   ['debuggertesting', 8, false,
    "Used when testing the debugger"],
   ['forcestep', 2, true,
    "Make sure 'next/step' commands always move to a new line"],
   ['fullpath', 2, true,
    "Display full file names in frames"],
   ['history', 2, false,
    "Generic command for setting command history parameters",
"set history filename -- Set the filename in which to record the command history
set history save -- Set saving of the history record on exit
set history size -- Set the size of the command history"],
   ['linetrace+', 10, true,
   "Set line execution tracing to show different lines"],
   ['linetrace', 3, true,
   "Set line execution tracing"],
   ['listsize', 3, false,
   "Set number of source lines to list by default"],
   ['trace', 1, true,
    "Display stack trace when 'eval' raises exception"],
   ['width', 1, false,
    "Number of characters the debugger thinks are in a line"],
  ].map do |name, min, is_bool, short_help, long_help| 
  SubcmdStruct2.new(name, min, is_bool, short_help, long_help)
end

Constants inherited from Command

Command::DEF_OPTIONS

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Command

commands, #find, inherited, #initialize, load_commands, #match, method_missing, options, register_setting_get, register_setting_set, register_setting_var, settings, settings_map

Constructor Details

This class inherits a constructor from Debugger::Command

Class Method Details

.help(args) ⇒ Object 



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# File 'lib/ruby-debug/commands/set.rb', line 192

def help(args)
  if args[1] 
    s = args[1]
    subcmd = Subcommands.find do |try_subcmd| 
      (s.size >= try_subcmd.min) and
        (try_subcmd.name[0..s.size-1] == s)
    end
    if subcmd
      str = subcmd.short_help + '.'
      str += "\n" + subcmd.long_help if subcmd.long_help
      return str
    else
      return "Invalid 'set' subcommand '#{args[1]}'."
    end
  end
  s = %{
    Modifies parts of the ruby-debug environment. Boolean values take
    on, off, 1 or 0.
    You can see these environment settings with the \"show\" command.

    -- 
    List of set subcommands:
    --  
  }
  for subcmd in Subcommands do
    s += "set #{subcmd.name} -- #{subcmd.short_help}\n"
  end
  return s
end

.help_command ⇒ Object 



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# File 'lib/ruby-debug/commands/set.rb', line 188

def help_command
  "set"
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/ruby-debug/commands/set.rb', line 59

def execute
  if not @match[1]
    print "\"set\" must be followed by the name of an set command:\n"
    print "List of set subcommands:\n\n"
    for subcmd in Subcommands do
      print "set #{subcmd.name} -- #{subcmd.short_help}\n"
    end
  else
    args = @match[1].split(/[ \t]+/)
    subcmd = args.shift
    subcmd.downcase!
    if subcmd =~ /^no/i
      set_on = false
      subcmd = subcmd[2..-1]
    else
      set_on = true
    end
    for try_subcmd in Subcommands do
      if (subcmd.size >= try_subcmd.min) and
          (try_subcmd.name[0..subcmd.size-1] == subcmd)
        begin
          if try_subcmd.is_bool
            if args.size > 0 
              set_on = get_onoff(args[0]) 
            end
          end
          case try_subcmd.name
          when /^annotate$/
            level = get_int(args[0], "Set annotate", 0, 3, 0)
            if level
              Debugger.annotate = level
            else
              return
            end
            if defined?(Debugger::RDEBUG_SCRIPT)
              # rdebug was called initially. 1st arg is script name.
              Command.settings[:argv][1..-1] = args
            else
              # rdebug wasn't called initially. 1st arg is not script name.
              Command.settings[:argv] = args
            end
          when /^args$/
            Command.settings[:argv][1..-1] = args
          when /^autolist$/
            Command.settings[:autolist] = (set_on ? 1 : 0)
          when /^autoeval$/
            Command.settings[:autoeval] = set_on
          when /^basename$/
            Command.settings[:basename] = set_on
          when /^callstyle$/
            if args[0]
              arg = args[0].downcase.to_sym
              case arg
              when :short, :last
                Command.settings[:callstyle] = arg
                print "%s\n" % show_setting(try_subcmd.name)
                return
              end
            end
            print "Invalid call style #{arg}. Should be one of: " +
              "'short' or 'last'.\n"
          when /^trace$/
            Command.settings[:stack_trace_on_error] = set_on
          when /^fullpath$/
            Command.settings[:full_path] = set_on
          when /^autoreload$/
            Command.settings[:reload_source_on_change] = set_on
          when /^autoirb$/
            Command.settings[:autoirb] = (set_on ? 1 : 0)
          when /^debuggertesting$/
            Command.settings[:debuggertesting] = set_on
            if set_on
              Command.settings[:basename] = true
            end
          when /^forcestep$/
            self.class.settings[:force_stepping] = set_on
          when /^history$/
            if 2 == args.size
              interface = @state.interface
              case args[0]
              when /^save$/
                interface.history_save = get_onoff(args[1])
              when /^size$/
                interface.history_length = get_int(args[1],
                                                   "Set history size")
              when /^filename$/
                interface.histfile = File.join(ENV["HOME"]||ENV["HOMEPATH"]||".", args[1])
              else
                print "Invalid history parameter #{args[0]}. Should be 'filename', 'save' or 'size'.\n" 
              end
            else
              print "Need two parameters for 'set history'; got #{args.size}.\n" 
              return
            end
          when /^linetrace\+$/
            self.class.settings[:tracing_plus] = set_on
          when /^linetrace$/
            Debugger.tracing = set_on
          when /^listsize$/
            listsize = get_int(args[0], "Set listsize", 1, nil, 10)
            if listsize
              self.class.settings[:listsize] = listsize
            else
              return
            end
          when /^width$/
            width = get_int(args[0], "Set width", 10, nil, 80)
            if width
              self.class.settings[:width] = width
              ENV['COLUMNS'] = width.to_s
            else
              return
            end
          else
            print "Unknown setting #{@match[1]}.\n"
            return
          end
          print "%s\n" % show_setting(try_subcmd.name)
          return
        rescue RuntimeError
          return
        end
      end
    end
    print "Unknown set command #{subcmd}\n"
  end
end

#regexp ⇒ Object 



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# File 'lib/ruby-debug/commands/set.rb', line 55

def regexp
  /^set (?: \s+ (.*) )?$/ix
end