Sha256: b4462984f5befad9a974707462d62f53c935befc8ac0d60fb42ebe3aa4916695
Contents?: true
Size: 1.65 KB
Versions: 18
Compression:
Stored size: 1.65 KB
Contents
require 'date' # needed for 1.9.1
module ICU
module Util
# Parses strings into date objects, interpreting nn/nn/nnnn as dd/mm/yyyy. It raises an exception on error.
#
# Util.parsedate!('1955-11-09') # => Date (1955-11-09)
# Util.parsedate!('02/03/2009') # => Date (2009-03-02)
# Util.parsedate!('02/23/2009') # => Date (2009-02-23)
# Util.parsedate!('16th June 1986') # => Date (1986-06-16)
# Util.parsedate!('not a date') # exception raised
#
# Note that the parse method of the Date class behaves differently in Ruby 1.8.7 and 1.9.1.
# In 1.8.7 it assumes American dates and will raise ArgumentError on "30/03/2003".
# In 1.9.1 it assumes European dates and will raise ArgumentError on "03/30/2003".
#
def self.parsedate!(date)
return date.clone if date.is_a?(Date)
string = date.to_s.strip
raise "invalid date (#{date})" unless string.match(/[1-9]/)
string = [$3].concat($2.to_i > 12 ? [$1, $2] : [$2, $1]).join('-') if string.match(/^(\d{1,2}).(\d{1,2}).(\d{4})$/)
begin
Date.parse(string, true)
rescue
raise "invalid date (#{date})"
end
end
# Returns the difference of two dates:
#
# Util.age(born, date) # age in years at the given date (Float)
# Util.age(born) # age in years now (today)
#
# Internally it uses _parsedate!_ so can throw a exception if an invalid date is supplied.
def self.age(born, date=Date.today)
born = parsedate!(born)
date = parsedate!(date)
date.year - born.year + (date.yday - born.yday) / 366.0
end
end
end
Version data entries
18 entries across 18 versions & 1 rubygems