Lazy base64 encoding and decoding routines
use Base64;
# ENCODING
> say encode-base64("g-g-g-g-g unit", :str);
Zy1nLWctZy1nIHVuaXQ=
> say encode-base64("g-g-g-g-g unit").raku;
("Z", "y", "1", "n", "L", "W", "c", "t", "Z", "y", "1", "n", "I", "H", "V", "u", "a", "X", "Q", "=").Seq
> .print for lazy encode-base64("g-g-g-g-g unit")
Zy1nLWctZy1nIHVuaXQ=
# DECODING
> say decode-base64("Zy1nLWctZy1nIHVuaXQ=", :bin).decode
g-g-g-g-g unit
> say decode-base64("Zy1nLWctZy1nIHVuaXQ=", :bin)
Buf:0x<67 2d 67 2d 67 2d 67 2d 67 20 75 6e 69 74>
> say decode-base64("Zy1nLWctZy1nIHVuaXQ=").raku
(103, 45, 103, 45, 103, 45, 103, 45, 103, 32, 117, 110, 105, 116).Seq
encode-base64($encode-me where Blob|Str, :$pad where Bool:D|Str:D, Str:D :@alpha, Bool:D :$str --> Seq|Str)
encode-base64($encode-me) # Returns a base64 encoded string
encode-base64($encode-me, :str) # Stringify and return the sequence that would be returned
encode-base64($encode-me, :!pad) # No padding
encode-base64($encode-me, :pad("*")) # Alternative padding character
encode-base64($encode-me, :uri) # Use '-' and '_' for chars 63 and 64
encode-base64($encode-me, :alpha(1..64)) # Set the entire alphabet
Takes a Blob and applies base64 encoding with the requested options. If passed a Str it will be converted to a Blob via .ords first.
> say encode-base64("test", :str)
dGVzdA==
> say encode-base64(Buf.new("test".ords), :str)
dGVzdA==
> say encode-base64("test").raku'
("d", "G", "V", "z", "d", "A", "=", "=").Seq
decode-base64($decode-me) # Decodes a base64 encoded string to a Buf for further decoding
decode-base64($encode-me, :bin) # Return a buffer from the sequence that would be returned
decode-base64($decode-me, :uri) # Use '-' and '_' for chars 63 and 64
decode-base64($decode-me, :alpha(1..64)) # Set the entire alphabet
Takes a Str and applies base64 decoding with the requested options. If passed a Blob it will be converted to a Str with .decode first.
> say decode-base64("YW55IGNhcm5hbCBwbGVhc3VyZS4=", :bin).decode
any carnal pleasure.
> say Buf.new(decode-base64("YW55IGNhcm5hbCBwbGVhc3VyZS4=")).decode('utf-8')
any carnal pleasure.
> say decode-base64("YW55IGNhcm5hbCBwbGVhc3VyZS4=").raku
(97, 110, 121, 32, 99, 97, 114, 110, 97, 108, 32, 112, 108, 101, 97, 115, 117, 114, 101, 46).Seq