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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_6@1350 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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238
lib/irb/init.rb
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238
lib/irb/init.rb
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#
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# irb/init.rb - irb initialize module
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# $Release Version: 0.7.3$
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# $Revision$
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# $Date$
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# by Keiju ISHITSUKA(keiju@ishitsuka.com)
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#
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# --
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#
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#
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#
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module IRB
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# initialize config
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# (JP: config$B$N=i4|2=(B)
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def IRB.initialize(ap_path)
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IRB.init_config(ap_path)
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IRB.init_error
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IRB.run_config
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end
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# @CONF default setting
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def IRB.init_config(ap_path)
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# class instance variables
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@TRACER_INITIALIZED = false
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@MATHN_INITIALIZED = false
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# default configurations
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# (JP: $B%G%U%)%k%H%3%s%U%#%.%e%l!<%7%g%s(B)
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unless ap_path and @CONF[:AP_NAME]
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ap_path = File.join(File.dirname(File.dirname(__FILE__)), "irb.rb")
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end
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@CONF[:AP_NAME] = File::basename(ap_path, ".rb")
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@CONF[:IRB_NAME] = "irb"
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@CONF[:IRB_LIB_PATH] = File.dirname(__FILE__)
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@CONF[:RC] = true
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@CONF[:LOAD_MODULES] = []
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@CONF[:IRB_RC] = nil
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@CONF[:MATH_MODE] = false
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@CONF[:USE_READLINE] = false unless defined?(ReadlineInputMethod)
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@CONF[:INSPECT_MODE] = nil
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@CONF[:USE_TRACER] = false
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@CONF[:USE_LOADER] = false
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@CONF[:IGNORE_SIGINT] = true
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@CONF[:IGNORE_EOF] = false
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@CONF[:BACK_TRACE_LIMIT] = 16
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@CONF[:PROMPT] = {
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:NULL => {
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:PROMPT_I => nil,
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:PROMPT_S => nil,
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:PROMPT_C => nil,
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:RETURN => "%s\n"
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},
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:DEFAULT => {
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:PROMPT_I => "%N(%m):%03n:%i> ",
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:PROMPT_S => "%N(%m):%03n:%i%l ",
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:PROMPT_C => "%N(%m):%03n:%i* ",
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:RETURN => "%s\n"
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},
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:SIMPLE => {
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:PROMPT_I => ">> ",
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:PROMPT_S => nil,
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:PROMPT_C => "?> ",
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:RETURN => "=> %s\n"
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},
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:INF_RUBY => {
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:PROMPT_I => "%N(%m):%03n:%i> ",
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:PROMPT_S => nil,
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:PROMPT_C => nil,
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:RETURN => "%s\n",
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:AUTO_INDENT => true
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},
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:XMP => {
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:PROMPT_I => nil,
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:PROMPT_S => nil,
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:PROMPT_C => nil,
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:RETURN => " ==>%s\n"
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}
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}
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@CONF[:PROMPT_MODE] = :DEFAULT
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@CONF[:AUTO_INDENT] = false
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@CONF[:CONTEXT_MODE] = 3 # use binding in function on TOPLEVEL_BINDING
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@CONF[:SINGLE_IRB] = false
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# @CONF[:LC_MESSAGES] = "en"
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@CONF[:LC_MESSAGES] = Locale.new
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@CONF[:DEBUG_LEVEL] = 1
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@CONF[:VERBOSE] = true
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end
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def IRB.init_error
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@CONF[:LC_MESSAGES].load("irb/error.rb")
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end
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# option analyzing
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# (JP: $B%*%W%7%g%s2r@O(B)
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def IRB.parse_opts
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while opt = ARGV.shift
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case opt
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when "-f"
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opt = ARGV.shift
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@CONF[:RC] = false
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when "-m"
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@CONF[:MATH_MODE] = true
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when "-d"
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$DEBUG = true
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when "-r"
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opt = ARGV.shift
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@CONF[:LOAD_MODULES].push opt if opt
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when "--inspect"
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@CONF[:INSPECT_MODE] = true
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when "--noinspect"
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@CONF[:INSPECT_MODE] = false
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when "--readline"
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@CONF[:USE_READLINE] = true
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when "--noreadline"
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@CONF[:USE_READLINE] = false
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when "--prompt-mode", "--prompt"
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prompt_mode = ARGV.shift.upcase.tr("-", "_").intern
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IRB.fail(UndefinedPromptMode,
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prompt_mode.id2name) unless @CONF[:PROMPT][prompt_mode]
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@CONF[:PROMPT_MODE] = prompt_mode
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when "--noprompt"
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@CONF[:PROMPT_MODE] = :NULL
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when "--inf-ruby-mode"
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@CONF[:PROMPT_MODE] = :INF_RUBY
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when "--sample-book-mode", "--simple-prompt"
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@CONF[:PROMPT_MODE] = :SIMPLE
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when "--tracer"
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@CONF[:USE_TRACER] = true
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when "--back-trace-limit"
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@CONF[:BACK_TRACE_LIMIT] = ARGV.shift.to_i
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when "--context-mode"
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@CONF[:CONTEXT_MODE] = ARGV.shift.to_i
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when "--single-irb"
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@CONF[:SINGLE_IRB] = true
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when "--irb_debug"
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@CONF[:DEBUG_LEVEL] = ARGV.shift.to_i
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when "-v", "--version"
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print IRB.version, "\n"
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exit 0
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when "-h", "--help"
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require "irb/help"
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IRB.print_usage
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exit 0
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when /^-/
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IRB.fail UnrecognizedSwitch, opt
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else
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@CONF[:USE_READLINE] = false
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@CONF[:SCRIPT] = opt
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$0 = opt
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break
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end
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end
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end
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# running config
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def IRB.run_config
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if @CONF[:RC]
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rcs = []
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rcs.push File.expand_path("~/.irbrc") if ENV.key?("HOME")
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rcs.push ".irbrc"
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rcs.push "irb.rc"
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rcs.push "_irbrc"
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rcs.push "$irbrc"
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catch(:EXIT) do
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for rc in rcs
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begin
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load rc
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throw :EXIT
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rescue LoadError, Errno::ENOENT
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rescue
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print "load error: #{rc}\n"
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print $!.type, ": ", $!, "\n"
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for err in $@[0, $@.size - 2]
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print "\t", err, "\n"
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end
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throw :EXIT
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end
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end
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end
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end
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end
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# loading modules
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def IRB.load_modules
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for m in @CONF[:LOAD_MODULES]
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begin
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require m
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rescue
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print $@[0], ":", $!.type, ": ", $!, "\n"
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end
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end
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end
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# initialize tracing function
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# (JP: $B%H%l!<%5=i4|@_Dj(B)
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def IRB.initialize_tracer
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unless @TRACER_INITIALIZED
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require("tracer")
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Tracer.verbose = false
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Tracer.add_filter {
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|event, file, line, id, binding|
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File::dirname(file) != @CONF[:IRB_LIB_PATH]
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}
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@TRACER_INITIALIZED = true
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end
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end
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# initialize mathn function
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# (JP: mathn$B=i4|@_Dj(B)
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def IRB.initialize_mathn
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unless @MATHN_INITIALIZED
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require "mathn"
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@MATHN_INITIALIZED = true
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end
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end
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# initialize loader function
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# (JP: loader$B=i4|@_Dj(B)
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def IRB.initialize_loader
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unless @LOADER_INITIALIZED
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require "irb/loader"
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@LOADER_INITIALIZED = true
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end
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end
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end
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