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-rw-r--r--lib/base64.rb45
1 files changed, 10 insertions, 35 deletions
diff --git a/lib/base64.rb b/lib/base64.rb
index 96208a6..d7461d8 100644
--- a/lib/base64.rb
+++ b/lib/base64.rb
@@ -1,50 +1,25 @@
-def decode64(str)
- string = ''
- for line in str.split("\n")
- line.delete!('^A-Za-z0-9+/') # remove non-base64 chars
- line.tr!('A-Za-z0-9+/', ' -_') # convert to uuencoded format
- len = ["#{32 + line.length * 3 / 4}"].pack("c")
- # compute length byte
- string += "#{len}#{line}".unpack("u") # uudecode and concatenate
- end
- return string
-end
+require "kconv"
-def j2e(str)
- while str =~ /\033\$B([^\033]*)\033\(B/
- s = $1
- pre, post = $`, $'
- s.gsub!(/./) { |ch|
- (ch[0]|0x80).chr
- }
- str = pre + s + post
- end
-# str.gsub!(/\033\$B([^\033]*)\033\(B/) {
-# $1.gsub!(/./) { |ch|
-# (ch[0]|0x80).chr
-# }
-# }
- str
+def decode64(str)
+ str.unpack("m")[0]
end
def decode_b(str)
str.gsub!(/=\?ISO-2022-JP\?B\?([!->@-~]+)\?=/i) {
decode64($1)
}
+ str = Kconv::toeuc(str)
+ str.gsub!(/=\?SHIFT_JIS\?B\?([!->@-~]+)\?=/i) {
+ decode64($1)
+ }
+ str = Kconv::toeuc(str)
str.gsub!(/\n/, ' ')
str.gsub!(/\0/, '')
- j2e(str)
+ str
end
def encode64(bin)
- encode = ""
- pad = 0
- [bin].pack("u").each do |uu|
- len = (2 + (uu[0] - 32)* 4) / 3
- encode << uu[1, len].tr('` -_', 'AA-Za-z0-9+/')
- pad += uu.length - 2 - len
- end
- encode + "=" * (pad % 3)
+ [bin].pack("m")
end
def b64encode(bin, len = 60)