instiki/lib/zip/stdrubyext.rb

111 lines
2.5 KiB
Ruby

unless Enumerable.method_defined?(:inject)
module Enumerable #:nodoc:all
def inject(n = 0)
each { |value| n = yield(n, value) }
n
end
end
end
module Enumerable #:nodoc:all
# returns a new array of all the return values not equal to nil
# This implementation could be faster
def select_map(&aProc)
map(&aProc).reject { |e| e.nil? }
end
end
unless Object.method_defined?(:object_id)
class Object #:nodoc:all
# Using object_id which is the new thing, so we need
# to make that work in versions prior to 1.8.0
alias object_id id
end
end
unless File.respond_to?(:read)
class File # :nodoc:all
# singleton method read does not exist in 1.6.x
def self.read(fileName)
open(fileName) { |f| f.read }
end
end
end
class String #:nodoc:all
def starts_with(aString)
rindex(aString, 0) == 0
end
def ends_with(aString)
index(aString, -aString.size)
end
def ensure_end(aString)
ends_with(aString) ? self : self + aString
end
def lchop
slice(1, length)
end
end
class Time #:nodoc:all
#MS-DOS File Date and Time format as used in Interrupt 21H Function 57H:
#
# Register CX, the Time:
# Bits 0-4 2 second increments (0-29)
# Bits 5-10 minutes (0-59)
# bits 11-15 hours (0-24)
#
# Register DX, the Date:
# Bits 0-4 day (1-31)
# bits 5-8 month (1-12)
# bits 9-15 year (four digit year minus 1980)
def to_binary_dos_time
(sec/2) +
(min << 5) +
(hour << 11)
end
def to_binary_dos_date
(day) +
(month << 5) +
((year - 1980) << 9)
end
# Dos time is only stored with two seconds accuracy
def dos_equals(other)
to_i/2 == other.to_i/2
end
def self.parse_binary_dos_format(binaryDosDate, binaryDosTime)
second = 2 * ( 0b11111 & binaryDosTime)
minute = ( 0b11111100000 & binaryDosTime) >> 5
hour = (0b1111100000000000 & binaryDosTime) >> 11
day = ( 0b11111 & binaryDosDate)
month = ( 0b111100000 & binaryDosDate) >> 5
year = ((0b1111111000000000 & binaryDosDate) >> 9) + 1980
begin
return Time.local(year, month, day, hour, minute, second)
end
end
end
class Module #:nodoc:all
def forward_message(forwarder, *messagesToForward)
methodDefs = messagesToForward.map {
|msg|
"def #{msg}; #{forwarder}(:#{msg}); end"
}
module_eval(methodDefs.join("\n"))
end
end
# Copyright (C) 2002, 2003 Thomas Sondergaard
# rubyzip is free software; you can redistribute it and/or
# modify it under the terms of the ruby license.