42 lines
1.2 KiB
Ruby
42 lines
1.2 KiB
Ruby
require 'yaml'
|
|
|
|
module ActiveSupport #:nodoc:
|
|
module CoreExtensions #:nodoc:
|
|
module BigDecimal #:nodoc:
|
|
module Conversions
|
|
def self.included(base) #:nodoc:
|
|
base.instance_eval do
|
|
alias_method :_original_to_s, :to_s
|
|
alias_method :to_s, :to_formatted_s
|
|
end
|
|
end
|
|
|
|
def to_formatted_s(format="F")
|
|
_original_to_s(format)
|
|
end
|
|
|
|
yaml_as "tag:yaml.org,2002:float"
|
|
def to_yaml( opts = {} )
|
|
YAML::quick_emit( nil, opts ) do |out|
|
|
# This emits the number without any scientific notation.
|
|
# I prefer it to using self.to_f.to_s, which would lose precision.
|
|
#
|
|
# Note that YAML allows that when reconsituting floats
|
|
# to native types, some precision may get lost.
|
|
# There is no full precision real YAML tag that I am aware of.
|
|
str = self.to_s
|
|
if str == "Infinity"
|
|
str = ".Inf"
|
|
elsif str == "-Infinity"
|
|
str = "-.Inf"
|
|
elsif str == "NaN"
|
|
str = ".NaN"
|
|
end
|
|
out.scalar( "tag:yaml.org,2002:float", str, :plain )
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|
|
end
|