Class: Debugger::HelpCommand

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

Overview

:nodoc:

Constant Summary

Constants inherited from Command

Command::DEF_OPTIONS

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Command

commands, inherited, #initialize, load_commands, #match, method_missing, options

Constructor Details

This class inherits a constructor from Debugger::Command

Class Method Details

.help(cmd) ⇒ Object 



39
40
41
42
43
44
 
# File 'lib/ruby-debug/commands/help.rb', line 39

def help(cmd)
  %{
    h[elp]\t\tprint this help
    h[elp] command\tprint help on command
  }
end

.help_command ⇒ Object 



35
36
37
 
# File 'lib/ruby-debug/commands/help.rb', line 35

def help_command
  'help'
end

Instance Method Details

#execute ⇒ Object 



9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
 
# File 'lib/ruby-debug/commands/help.rb', line 9

def execute
  print "ruby-debug help v.#{Debugger::VERSION}\n"
  cmds = @state.commands.select{ |cmd| [cmd.help_command].flatten.include?(@match[1]) }
  unless cmds.empty?
    help = cmds.map{ |cmd| cmd.help(@match[1]) }.join
    print help.split("\n").reject{|l| l =~ /^\s*$/ }.map{|l| l.gsub(/^ +/, '')}.join("\n")
  else
    print "Available commands:\n"
    cmds = @state.commands.map{ |cmd| cmd.help_command }
    cmds = cmds.flatten.uniq.sort

    buf = ""
    cmds.each do |cmd|
      if buf.length + cmd.length > 70
        print "%s\n", buf
        buf = ""
      else
        buf << cmd << ' '
      end
    end
    print "%s\n", buf if buf.length > 0
  end
  print "\n"
end

#regexp ⇒ Object 



5
6
7
 
# File 'lib/ruby-debug/commands/help.rb', line 5

def regexp
  /^\s*h(?:elp)?(?:\s+(.+))?$/
end