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-rw-r--r--actionview/lib/action_view/helpers/number_helper.rb6
1 files changed, 6 insertions, 0 deletions
diff --git a/actionview/lib/action_view/helpers/number_helper.rb b/actionview/lib/action_view/helpers/number_helper.rb
index 75b898c3e9..9e80f0b2ee 100644
--- a/actionview/lib/action_view/helpers/number_helper.rb
+++ b/actionview/lib/action_view/helpers/number_helper.rb
@@ -171,6 +171,9 @@ module ActionView
# to ",").
# * <tt>:separator</tt> - Sets the separator between the
# fractional and integer digits (defaults to ".").
+ # * <tt>:delimiter_pattern</tt> - Sets a custom regular expression used for
+ # deriving the placement of delimiter. Helpful when using currency formats
+ # like INR.
# * <tt>:raise</tt> - If true, raises +InvalidNumberError+ when
# the argument is invalid.
#
@@ -187,6 +190,9 @@ module ActionView
# number_with_delimiter(98765432.98, delimiter: " ", separator: ",")
# # => 98 765 432,98
#
+ # number_with_delimiter("123456.78",
+ # delimiter_pattern: /(\d+?)(?=(\d\d)+(\d)(?!\d))/) # => "1,23,456.78"
+ #
# number_with_delimiter("112a", raise: true) # => raise InvalidNumberError
def number_with_delimiter(number, options = {})
delegate_number_helper_method(:number_to_delimited, number, options)