1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
#
# notifier.rb - optput methods used by irb
# $Release Version: 0.9.5$
# $Revision$
# 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 AbstructNotifier
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<AbstructNotifier
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 AbstructNotifier
@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<AbstructNotifier
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
|
