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proc
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root
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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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Filename :
notifier.rb
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# # notifier.rb - output methods used by irb # $Release Version: 0.9.6$ # $Revision: 26986 $ # by Keiju ISHITSUKA(keiju@ruby-lang.org) # # -- # # # require "e2mmap" require "irb/output-method" module IRB module Notifier extend Exception2MessageMapper def_exception :ErrUndefinedNotifier, "undefined notifier level: %d is specified" def_exception :ErrUnrecognizedLevel, "unrecognized notifier level: %s is specified" def def_notifier(prefix = "", output_method = StdioOutputMethod.new) CompositeNotifier.new(prefix, output_method) end module_function :def_notifier class AbstractNotifier def initialize(prefix, base_notifier) @prefix = prefix @base_notifier = base_notifier end attr_reader :prefix def notify? true end def print(*opts) @base_notifier.print prefix, *opts if notify? end def printn(*opts) @base_notifier.printn prefix, *opts if notify? end def printf(format, *opts) @base_notifier.printf(prefix + format, *opts) if notify? end def puts(*objs) if notify? @base_notifier.puts(*objs.collect{|obj| prefix + obj.to_s}) end end def pp(*objs) if notify? @base_notifier.ppx @prefix, *objs end end def ppx(prefix, *objs) if notify? @base_notifier.ppx @prefix+prefix, *objs end end def exec_if yield(@base_notifier) if notify? end end class CompositeNotifier<AbstractNotifier def initialize(prefix, base_notifier) super @notifiers = [D_NOMSG] @level_notifier = D_NOMSG end attr_reader :notifiers def def_notifier(level, prefix = "") notifier = LeveledNotifier.new(self, level, prefix) @notifiers[level] = notifier notifier end attr_reader :level_notifier alias level level_notifier def level_notifier=(value) case value when AbstractNotifier @level_notifier = value when Integer l = @notifiers[value] Notifier.Raise ErrUndefinedNotifer, value unless l @level_notifier = l else Notifier.Raise ErrUnrecognizedLevel, value unless l end end alias level= level_notifier= end class LeveledNotifier<AbstractNotifier include Comparable def initialize(base, level, prefix) super(prefix, base) @level = level end attr_reader :level def <=>(other) @level <=> other.level end def notify? @base_notifier.level >= self end end class NoMsgNotifier<LeveledNotifier def initialize @base_notifier = nil @level = 0 @prefix = "" end def notify? false end end D_NOMSG = NoMsgNotifier.new end end