# File lib/json/pure/generator.rb, line 169
169:         def configure(opts)
170:           @indent         = opts[:indent] if opts.key?(:indent)
171:           @space          = opts[:space] if opts.key?(:space)
172:           @space_before   = opts[:space_before] if opts.key?(:space_before)
173:           @object_nl      = opts[:object_nl] if opts.key?(:object_nl)
174:           @array_nl       = opts[:array_nl] if opts.key?(:array_nl)
175:           @check_circular = !!opts[:check_circular] if opts.key?(:check_circular)
176:           @allow_nan      = !!opts[:allow_nan] if opts.key?(:allow_nan)
177:           if !opts.key?(:max_nesting) # defaults to 19
178:             @max_nesting = 19
179:           elsif opts[:max_nesting]
180:             @max_nesting = opts[:max_nesting]
181:           else
182:             @max_nesting = 0
183:           end
184:           self
185:         end