# File lib/yaml/types.rb, line 155
155:         def self.[]( *vals )
156:             p = Pairs.new
157:             0.step( vals.length - 1, 2 ) { |i|
158:                 p[vals[i]] = vals[i+1]
159:             }
160:             p
161:         end

     # File lib/yaml/types.rb, line 162
162:         def []( k )
163:             self.assoc( k ).to_a
164:         end

     # File lib/yaml/types.rb, line 165
165:         def []=( k, val )
166:             self << [ k, val ] 
167:             val
168:         end

     # File lib/yaml/types.rb, line 169
169:         def has_key?( k )
170:             self.assoc( k ) ? true : false
171:         end

     # File lib/yaml/types.rb, line 172
172:         def is_complex_yaml?
173:             true
174:         end

     # File lib/yaml/types.rb, line 175
175:         def to_yaml( opts = {} )
176:             YAML::quick_emit( self, opts ) do |out|
177:                 out.seq( taguri, to_yaml_style ) do |seq|
178:                     self.each do |v|
179:                         seq.add( Hash[ *v ] )
180:                     end
181:                 end
182:             end
183:         end

     # File lib/yaml/types.rb, line 141
141:         def yaml_initialize( tag, val )
142:             if Array === val
143:                 val.each do |v|
144:                     if Hash === v
145:                         concat( v.to_a )                # Convert the map to a sequence
146:                     else
147:                         raise YAML::Error, "Invalid !pairs entry: " + val.inspect
148:                     end
149:                 end
150:             else
151:                 raise YAML::Error, "Invalid !pairs: " + val.inspect
152:             end
153:             self
154:         end