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
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
|
require 'htree/encoder'
require 'htree/doc'
require 'htree/elem'
require 'htree/leaf'
require 'htree/text'
module HTree
# :stopdoc:
class Text
ChRef = {
'>' => '>',
'<' => '<',
'"' => '"',
}
def output(out, context=nil)
out.output_text @rcdata.gsub(/[<>]/) {|s| ChRef[s] }
end
def to_attvalue_content
@rcdata.gsub(/[<>"]/) {|s| ChRef[s] }
end
def output_attvalue(out, context)
out.output_string '"'
out.output_text to_attvalue_content
out.output_string '"'
end
def output_cdata(out)
str = self.to_s
if %r{</} =~ str
raise ArgumentError, "CDATA cannot contain '</': #{str.inspect}"
end
out.output_string(str)
end
end
class Name
def output(out, context)
# xxx: validate namespace prefix
if xmlns?
if @local_name
out.output_string "xmlns:#{@local_name}"
else
out.output_string "xmlns"
end
else
out.output_string qualified_name
end
end
def output_attribute(text, out, context)
output(out, context)
out.output_string '='
text.output_attvalue(out, context)
end
end
class Doc
def output(out, context)
xmldecl = false
@children.each {|n|
if n.respond_to? :output_prolog_xmldecl
n.output_prolog_xmldecl(out, context) unless xmldecl # xxx: encoding?
xmldecl = true
else
n.output(out, context)
end
}
end
end
class Elem
def output(out, context)
if %r{\A\{http://www.w3.org/1999/xhtml\}(?:script|style)\z} =~ @stag.element_name.universal_name
children_context = @stag.output_stag(out, context)
out.output_cdata_content(@children, children_context)
@stag.output_etag(out, context)
elsif @empty
@stag.output_emptytag(out, context)
else
children_context = @stag.output_stag(out, context)
@children.each {|n| n.output(out, children_context) }
@stag.output_etag(out, context)
end
end
end
class STag
def output_attributes(out, context)
@attributes.each {|aname, text|
next if aname.xmlns?
out.output_string ' '
aname.output_attribute(text, out, context)
}
@context.output_namespaces(out, context)
end
def output_emptytag(out, context)
out.output_string '<'
@name.output(out, context)
children_context = output_attributes(out, context)
out.output_string "\n"
out.output_slash_if_xml
out.output_string ">"
children_context
end
def output_stag(out, context)
out.output_string '<'
@name.output(out, context)
children_context = output_attributes(out, context)
out.output_string "\n>"
children_context
end
def output_etag(out, context)
out.output_string '</'
@name.output(out, context)
out.output_string "\n>"
end
end
class Context
def output_namespaces(out, outer_context)
unknown_namespaces = {}
@namespaces.each {|prefix, uri|
outer_uri = outer_context.namespace_uri(prefix)
if outer_uri == nil
unknown_namespaces[prefix] = uri
elsif outer_uri != uri
if prefix
out.output_string " xmlns:#{prefix}="
else
out.output_string " xmlns="
end
Text.new(uri).output_attvalue(out, outer_context)
end
}
unless unknown_namespaces.empty?
out.output_xmlns(unknown_namespaces)
end
outer_context.subst_namespaces(@namespaces)
end
end
class BogusETag
# don't output anything.
def output(out, context)
end
end
class XMLDecl
# don't output anything.
def output(out, context)
end
def output_prolog_xmldecl(out, context)
out.output_string "<?xml version=\"#{@version}\""
if @encoding
out.output_string " encoding=\"#{@encoding}\""
end
if @standalone != nil
out.output_string " standalone=\"#{@standalone ? 'yes' : 'no'}\""
end
out.output_string "?>"
end
end
class DocType
def output(out, context)
out.output_string "<!DOCTYPE #{@root_element_name} #{generate_content}>"
end
def generate_content # :nodoc:
result = ''
if @public_identifier
result << "PUBLIC \"#{@public_identifier}\""
else
result << "SYSTEM"
end
# Although a system identifier is not omissible in XML,
# we cannot output it if it is not given.
if @system_identifier
if /"/ !~ @system_identifier
result << " \"#{@system_identifier}\""
else
result << " '#{@system_identifier}'"
end
end
result
end
end
class ProcIns
def output(out, context)
out.output_string "<?#{@target}"
out.output_string " #{@content}" if @content
out.output_string "?>"
end
end
class Comment
def output(out, context)
out.output_string "<!--#{@content}-->"
end
end
# :startdoc:
end
|
