# File lib/json/pure/generator.rb, line 194
194:         def configure(opts)
195:           @indent         = opts[:indent] if opts.key?(:indent)
196:           @space          = opts[:space] if opts.key?(:space)
197:           @space_before   = opts[:space_before] if opts.key?(:space_before)
198:           @object_nl      = opts[:object_nl] if opts.key?(:object_nl)
199:           @array_nl       = opts[:array_nl] if opts.key?(:array_nl)
200:           @check_circular = !!opts[:check_circular] if opts.key?(:check_circular)
201:           @allow_nan      = !!opts[:allow_nan] if opts.key?(:allow_nan)
202:           if !opts.key?(:max_nesting) # defaults to 19
203:             @max_nesting = 19
204:           elsif opts[:max_nesting]
205:             @max_nesting = opts[:max_nesting]
206:           else
207:             @max_nesting = 0
208:           end
209:           self
210:         end