blob: 93f5bfb32930c9d2193fe6e6225221b8b449738a (
plain)
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
145
146
147
148
149
150
151
152
153
154
155
|
require 'rexml/validation/validationexception'
module REXML
module Validation
module Validator
NILEVENT = [ nil ]
def reset
@current = @root
@root.reset
@root.previous = true
@attr_stack = []
self
end
def dump
puts @root.inspect
end
def validate( event )
#puts "Current: #@current"
#puts "Event: #{event.inspect}"
@attr_stack = [] unless defined? @attr_stack
match = @current.next(event)
raise ValidationException.new( "Validation error. Expected: "+
@current.expected.join( " or " )+" from #{@current.inspect} "+
" but got #{Event.new( event[0], event[1] ).inspect}" ) unless match
@current = match
# Check for attributes
case event[0]
when :start_element
#puts "Checking attributes"
@attr_stack << event[2]
begin
sattr = [:start_attribute, nil]
eattr = [:end_attribute]
text = [:text, nil]
k,v = event[2].find { |key,value|
sattr[1] = key
#puts "Looking for #{sattr.inspect}"
m = @current.next( sattr )
#puts "Got #{m.inspect}"
if m
# If the state has text children...
#puts "Looking for #{eattr.inspect}"
#puts "Expect #{m.expected}"
if m.matches?( eattr )
#puts "Got end"
@current = m
else
#puts "Didn't get end"
text[1] = value
#puts "Looking for #{text.inspect}"
m = m.next( text )
#puts "Got #{m.inspect}"
text[1] = nil
return false unless m
@current = m if m
end
m = @current.next( eattr )
if m
@current = m
true
else
false
end
else
false
end
}
event[2].delete(k) if k
end while k
when :end_element
attrs = @attr_stack.pop
raise ValidationException.new( "Validation error. Illegal "+
" attributes: #{attrs.inspect}") if attrs.length > 0
end
end
end
class Event
def initialize(event_type, event_arg=nil )
@event_type = event_type
@event_arg = event_arg
end
attr_reader :event_type
attr_accessor :event_arg
def done?
@done
end
def single?
return (@event_type != :start_element and @event_type != :start_attribute)
end
def matches?( event )
#puts "#@event_type =? #{event[0]} && #@event_arg =? #{event[1]} "
return false unless event[0] == @event_type
case event[0]
when nil
return true
when :start_element
return true if event[1] == @event_arg
when :end_element
return true
when :start_attribute
return true if event[1] == @event_arg
when :end_attribute
return true
when :end_document
return true
when :text
return (@event_arg.nil? or @event_arg == event[1])
=begin
when :processing_instruction
false
when :xmldecl
false
when :start_doctype
false
when :end_doctype
false
when :externalentity
false
when :elementdecl
false
when :entity
false
when :attlistdecl
false
when :notationdecl
false
when :end_doctype
false
=end
else
false
end
end
def ==( other )
return false unless other.kind_of? Event
@event_type == other.event_type and @event_arg == other.event_arg
end
def to_s
inspect
end
def inspect
"#{@event_type.inspect}( #@event_arg )"
end
end
end
end
|
