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Contents
# Copyright (C) 2013 Kouhei Sutou <kou@clear-code.com>
#
# This library is free software; you can redistribute it and/or
# modify it under the terms of the GNU Lesser General Public
# License as published by the Free Software Foundation; either
# version 2.1 of the License, or (at your option) any later version.
#
# This library is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
# Lesser General Public License for more details.
#
# You should have received a copy of the GNU Lesser General Public
# License along with this library; if not, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
require "English"
module ChupaText
class SizeParser
class InvalidSizeError < Error
attr_reader :size
def initialize(size)
@size = size
super("invalid size: <#{@size.inspect}>")
end
end
class << self
def parse(size)
new.parse(size)
end
end
def parse(size)
case size
when /TB?\z/i
scale = 1024 ** 4
number_part = $PREMATCH
when /GB?\z/i
scale = 1024 ** 3
number_part = $PREMATCH
when /MB?\z/i
scale = 1024 ** 2
number_part = $PREMATCH
when /KB?\z/i
scale = 1024 ** 1
number_part = $PREMATCH
when /B?\z/i
scale = 1
number_part = $PREMATCH
else
scale = 1
number_part = size
end
begin
number = Float(number_part)
rescue ArgumentError
raise InvalidSizeError.new(size)
end
(number * scale).round
end
end
end
Version data entries
35 entries across 35 versions & 1 rubygems