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* lib/base64.rb: enclosed in a module. [ruby-core:02285]

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@5518 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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nobu 2004-01-21 07:10:41 +00:00
parent ce164c2a30
commit b89f4520e5
2 changed files with 92 additions and 67 deletions
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4
ChangeLog
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@ -1,3 +1,7 @@
Wed Jan 21 16:10:36 2004 Nobuyoshi Nakada <nobu@ruby-lang.org>
* lib/base64.rb: enclosed in a module. [ruby-core:02285]
Wed Jan 21 16:01:26 2004 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/digest/rmd160/extconf.rb: have_library appends found library.

109
lib/base64.rb
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@ -12,36 +12,38 @@ require "kconv"
# puts plain
module Base64
module_function
# Returns the Base64-decoded version of \obj{str}.
#
# require 'base64'
# str = 'VGhpcyBpcyBsaW5lIG9uZQpUaGlzIG' +
# 'lzIGxpbmUgdHdvClRoaXMgaXMgbGlu' +
# 'ZSB0aHJlZQpBbmQgc28gb24uLi4K'
# puts decode64(str)
#
# <i>Generates:</i>
#
# This is line one
# This is line two
# This is line three
# And so on...
# Returns the Base64-decoded version of \obj{str}.
#
# require 'base64'
# str = 'VGhpcyBpcyBsaW5lIG9uZQpUaGlzIG' +
# 'lzIGxpbmUgdHdvClRoaXMgaXMgbGlu' +
# 'ZSB0aHJlZQpBbmQgc28gb24uLi4K'
# puts decode64(str)
#
# <i>Generates:</i>
#
# This is line one
# This is line two
# This is line three
# And so on...
def decode64(str)
def decode64(str)
str.unpack("m")[0]
end
end
# Decodes text formatted using a subset of RFC2047 (the one used for
# mime-encoding mail headers). Only supports an encoding type of 'b'
# (base 64), and only supports the character sets ISO-2022-JP and
# SHIFT_JIS (so the only two encoded word sequences recognized are
# <tt>=?ISO-2022-JP?B?...=</tt> and
# <tt>=?SHIFT_JIS?B?...=</tt>). Recognition of these sequences is case
# insensitive.
# Decodes text formatted using a subset of RFC2047 (the one used for
# mime-encoding mail headers). Only supports an encoding type of 'b'
# (base 64), and only supports the character sets ISO-2022-JP and
# SHIFT_JIS (so the only two encoded word sequences recognized are
# <tt>=?ISO-2022-JP?B?...=</tt> and
# <tt>=?SHIFT_JIS?B?...=</tt>). Recognition of these sequences is case
# insensitive.
def decode_b(str)
def decode_b(str)
str.gsub!(/=\?ISO-2022-JP\?B\?([!->@-~]+)\?=/i) {
decode64($1)
}
@ -53,32 +55,51 @@ def decode_b(str)
str.gsub!(/\n/, ' ')
str.gsub!(/\0/, '')
str
end
end
# Returns the Base64-encoded version of \obj{str}.
#
# require 'base64'
# str = "Once\nupon\na\ntime." #!sh!
# enc = encode64(str)
# decode64(enc)
# Returns the Base64-encoded version of \obj{str}.
#
# require 'base64'
# str = "Once\nupon\na\ntime." #!sh!
# enc = encode64(str)
# decode64(enc)
def encode64(bin)
def encode64(bin)
[bin].pack("m")
end
end
# Prints the Base64 encoded version of _bin_ (a +String+) in lines of
# _len_ (default 60) characters.
#
# require 'base64'
# b64encode("Now is the time for all good coders\nto learn Ruby")
#
# Generates
#
# Tm93IGlzIHRoZSB0aW1lIGZvciBhbGwgZ29vZCBjb2RlcnMKdG8gbGVhcm4g
# UnVieQ==
# Prints the Base64 encoded version of _bin_ (a +String+) in lines of
# _len_ (default 60) characters.
#
# require 'base64'
# b64encode("Now is the time for all good coders\nto learn Ruby")
#
# Generates
#
# Tm93IGlzIHRoZSB0aW1lIGZvciBhbGwgZ29vZCBjb2RlcnMKdG8gbGVhcm4g
# UnVieQ==
def b64encode(bin, len = 60)
def b64encode(bin, len = 60)
encode64(bin).scan(/.{1,#{len}}/o) do
print $&, "\n"
end
end
module Deprecated
include Base64
def _deprecated_base64(*args)
m0, m1 = caller(0)
m = m0[/\`(.*?)\'\z/, 1]
warn("#{m1}: #{m} is deprecated; use Base64.#{m} instead")
super
end
dep = instance_method(:_deprecated_base64)
remove_method(:_deprecated_base64)
for m in Base64.private_instance_methods(false)
define_method(m, dep)
end
end
end
include Base64::Deprecated