module Base64:sig..end
Base64 encoding as described in RFC 2045
val encode : ?pos:int ->
       ?len:int ->
       ?linelength:int ->
       ?crlf:bool -> ?plus:char -> ?slash:char -> string -> stringCompute the "base 64" encoding of the given string argument. Note that the result is a string that only contains the characters a-z, A-Z, 0-9, +, /, =, and optionally spaces, CR and LF characters.
If pos and/or len are passed, only the substring starting at
 pos (default: 0) with length len (default: rest of the string)
 is encoded.
The result is divided up into lines not longer than linelength
 (without counting the line separator); default: do not divide lines.
 If linelength is smaller than 4, no line division is performed.
 If linelength is not divisible by 4, the produced lines are a 
 bit shorter than linelength.
If crlf (default: false) the lines are ended by CRLF; otherwise 
 they are only ended by LF.
 (You need the crlf option to produce correct MIME messages.)
By default, the 63rd character of the alphabet is '+', and the
 64th character is '/'. By passing plus and slash you can
 choose different characters.
val encode_tstring : ?pos:int ->
       ?len:int ->
       ?linelength:int ->
       ?crlf:bool ->
       ?plus:char -> ?slash:char -> Netsys_types.tstring -> Stdlib.Bytes.tSame for tagged string inputs. The result are always bytes, though
val encode_poly : ?pos:int ->
       ?len:int ->
       ?linelength:int ->
       ?crlf:bool ->
       ?plus:char ->
       ?slash:char -> 's Netstring_tstring.tstring_ops -> 's -> Stdlib.Bytes.tPolymorphic version
val decode : ?pos:int ->
       ?len:int ->
       ?accept_spaces:bool -> ?plus:char -> ?slash:char -> string -> stringDecodes the given string argument.
If pos and/or len are passed, only the substring starting at
 pos (default: 0) with length len (default: rest of the string)
 is decoded.
If accept_spaces (default: false) is set, the function ignores
 white space contained in the string to decode (otherwise the
 function fails if it finds white space). Furthermore, the character
 '>' is considered as "space", too (so you don't have trouble with
 mbox mailboxes that accidentally quote "From").
By default, the 63rd character of the alphabet is '+', and the
 64th character is '/'. By passing plus and slash you can
 choose different characters.
val decode_tstring : ?pos:int ->
       ?len:int ->
       ?accept_spaces:bool ->
       ?plus:char -> ?slash:char -> Netsys_types.tstring -> Stdlib.Bytes.tSame for tagged string inputs. The result are always bytes, though
val decode_poly : ?pos:int ->
       ?len:int ->
       ?accept_spaces:bool ->
       ?plus:char ->
       ?slash:char -> 's Netstring_tstring.tstring_ops -> 's -> Stdlib.Bytes.tPolymorphic version
class encoding_pipe :?linelength:int -> ?crlf:bool -> ?plus:char -> ?slash:char -> unit ->Netchannels.pipe
This pipe encodes the data written into the pipe.
class decoding_pipe :?accept_spaces:bool -> ?plus:char -> ?slash:char -> unit ->Netchannels.pipe
This pipe decodes the data written into the pipe.