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proc
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opt
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ruby19
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lib64
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ruby
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1.9.1
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irb
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context.rb
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# # irb/context.rb - irb context # $Release Version: 0.9.6$ # $Revision: 27117 $ # by Keiju ISHITSUKA(keiju@ruby-lang.org) # # -- # # # require "irb/workspace" require "irb/inspector" module IRB class Context # # Arguments: # input_method: nil -- stdin or readline # String -- File # other -- using this as InputMethod # def initialize(irb, workspace = nil, input_method = nil, output_method = nil) @irb = irb if workspace @workspace = workspace else @workspace = WorkSpace.new end @thread = Thread.current if defined? Thread # @irb_level = 0 # copy of default configuration @ap_name = IRB.conf[:AP_NAME] @rc = IRB.conf[:RC] @load_modules = IRB.conf[:LOAD_MODULES] @use_readline = IRB.conf[:USE_READLINE] @verbose = IRB.conf[:VERBOSE] @io = nil self.inspect_mode = IRB.conf[:INSPECT_MODE] self.math_mode = IRB.conf[:MATH_MODE] if IRB.conf[:MATH_MODE] self.use_tracer = IRB.conf[:USE_TRACER] if IRB.conf[:USE_TRACER] self.use_loader = IRB.conf[:USE_LOADER] if IRB.conf[:USE_LOADER] self.eval_history = IRB.conf[:EVAL_HISTORY] if IRB.conf[:EVAL_HISTORY] @ignore_sigint = IRB.conf[:IGNORE_SIGINT] @ignore_eof = IRB.conf[:IGNORE_EOF] @back_trace_limit = IRB.conf[:BACK_TRACE_LIMIT] self.prompt_mode = IRB.conf[:PROMPT_MODE] if IRB.conf[:SINGLE_IRB] or !defined?(JobManager) @irb_name = IRB.conf[:IRB_NAME] else @irb_name = "irb#"+IRB.JobManager.n_jobs.to_s end @irb_path = "(" + @irb_name + ")" case input_method when nil case use_readline? when nil if (defined?(ReadlineInputMethod) && STDIN.tty? && IRB.conf[:PROMPT_MODE] != :INF_RUBY) @io = ReadlineInputMethod.new else @io = StdioInputMethod.new end when false @io = StdioInputMethod.new when true if defined?(ReadlineInputMethod) @io = ReadlineInputMethod.new else @io = StdioInputMethod.new end end when String @io = FileInputMethod.new(input_method) @irb_name = File.basename(input_method) @irb_path = input_method else @io = input_method end self.save_history = IRB.conf[:SAVE_HISTORY] if IRB.conf[:SAVE_HISTORY] if output_method @output_method = output_method else @output_method = StdioOutputMethod.new end @echo = IRB.conf[:ECHO] if @echo.nil? @echo = true end @debug_level = IRB.conf[:DEBUG_LEVEL] end def main @workspace.main end attr_reader :workspace_home attr_accessor :workspace attr_reader :thread attr_accessor :io attr_accessor :irb attr_accessor :ap_name attr_accessor :rc attr_accessor :load_modules attr_accessor :irb_name attr_accessor :irb_path attr_reader :use_readline attr_reader :inspect_mode attr_reader :prompt_mode attr_accessor :prompt_i attr_accessor :prompt_s attr_accessor :prompt_c attr_accessor :prompt_n attr_accessor :auto_indent_mode attr_accessor :return_format attr_accessor :ignore_sigint attr_accessor :ignore_eof attr_accessor :echo attr_accessor :verbose attr_reader :debug_level attr_accessor :back_trace_limit alias use_readline? use_readline alias rc? rc alias ignore_sigint? ignore_sigint alias ignore_eof? ignore_eof alias echo? echo def verbose? if @verbose.nil? if defined?(ReadlineInputMethod) && @io.kind_of?(ReadlineInputMethod) false elsif !STDIN.tty? or @io.kind_of?(FileInputMethod) true else false end else @verbose end end def prompting? verbose? || (STDIN.tty? && @io.kind_of?(StdioInputMethod) || (defined?(ReadlineInputMethod) && @io.kind_of?(ReadlineInputMethod))) end attr_reader :last_value def set_last_value(value) @last_value = value @workspace.evaluate self, "_ = IRB.CurrentContext.last_value" end def prompt_mode=(mode) @prompt_mode = mode pconf = IRB.conf[:PROMPT][mode] @prompt_i = pconf[:PROMPT_I] @prompt_s = pconf[:PROMPT_S] @prompt_c = pconf[:PROMPT_C] @prompt_n = pconf[:PROMPT_N] @return_format = pconf[:RETURN] if ai = pconf.include?(:AUTO_INDENT) @auto_indent_mode = ai else @auto_indent_mode = IRB.conf[:AUTO_INDENT] end end def inspect? @inspect_mode.nil? or @inspect_mode end def file_input? @io.class == FileInputMethod end def inspect_mode=(opt) if i = INSPECTORS[opt] @inspect_mode = opt @inspect_method = i i.init else case opt when nil if INSPECTORS.keys_with_inspector(INSPECTORS[true]).include?(@inspect_mode) self.inspect_mode = false elsif INSPECTORS.keys_with_inspector(INSPECTORS[false]).include?(@inspect_mode) self.inspect_mode = true else puts "Can't switch inspect mode." return end when /^\s*\{.*\}\s*$/ begin inspector = eval "proc#{opt}" rescue Exception puts "Can't switch inspect mode(#{opt})." return end self.inspect_mode = inspector when Proc self.inspect_mode = IRB::Inspector(opt) when Inspector prefix = "usr%d" i = 1 while INSPECTORS[format(prefix, i)]; i += 1; end @inspect_mode = format(prefix, i) @inspect_method = opt INSPECTORS.def_inspector(format(prefix, i), @inspect_method) else puts "Can't switch inspect mode(#{opt})." return end end print "Switch to#{unless @inspect_mode; ' non';end} inspect mode.\n" if verbose? @inspect_mode end def use_readline=(opt) @use_readline = opt print "use readline module\n" if @use_readline end def debug_level=(value) @debug_level = value RubyLex.debug_level = value SLex.debug_level = value end def debug? @debug_level > 0 end def evaluate(line, line_no) @line_no = line_no set_last_value(@workspace.evaluate(self, line, irb_path, line_no)) # @workspace.evaluate("_ = IRB.conf[:MAIN_CONTEXT]._") # @_ = @workspace.evaluate(line, irb_path, line_no) end def inspect_last_value @inspect_method.inspect_value(@last_value) end alias __exit__ exit def exit(ret = 0) IRB.irb_exit(@irb, ret) end NOPRINTING_IVARS = ["@last_value"] NO_INSPECTING_IVARS = ["@irb", "@io"] IDNAME_IVARS = ["@prompt_mode"] alias __inspect__ inspect def inspect array = [] for ivar in instance_variables.sort{|e1, e2| e1 <=> e2} ivar = ivar.to_s name = ivar.sub(/^@(.*)$/, '\1') val = instance_eval(ivar) case ivar when *NOPRINTING_IVARS array.push format("conf.%s=%s", name, "...") when *NO_INSPECTING_IVARS array.push format("conf.%s=%s", name, val.to_s) when *IDNAME_IVARS array.push format("conf.%s=:%s", name, val.id2name) else array.push format("conf.%s=%s", name, val.inspect) end end array.join("\n") end alias __to_s__ to_s alias to_s inspect end end