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- (*
- * Base64 - Base64 codec
- * Copyright (C) 2003 Nicolas Cannasse
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2.1 of the License, or (at your option) any later version,
- * with the special exception on linking described in file LICENSE.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- *)
- (** Base64 codec.
- 8-bit characters are encoded into 6-bit ones using ASCII lookup tables.
- Default tables maps 0..63 values on characters A-Z, a-z, 0-9, '+' and '/'
- (in that order).
- *)
- open ExtBytes
- (** This exception is raised when reading an invalid character
- from a base64 input. *)
- exception Invalid_char
- (** This exception is raised if the encoding or decoding table
- size is not correct. *)
- exception Invalid_table
- (** An encoding table maps integers 0..63 to the corresponding char. *)
- type encoding_table = char array
- (** A decoding table maps chars 0..255 to the corresponding 0..63 value
- or -1 if the char is not accepted. *)
- type decoding_table = int array
- (** erroneous interface, kept for compatibility use [encode_string] instead *)
- val str_encode : ?tbl:encoding_table -> string -> Bytes.t
- (** erroneous interface, kept for compatibility use [decode_string] instead *)
- val str_decode : ?tbl:decoding_table -> Bytes.t -> string
- (** Encode a string into Base64. *)
- val encode_string : ?tbl:encoding_table -> string -> string
- (** Decode a string encoded into Base64, raise [Invalid_char] if a
- character in the input string is not a valid one. *)
- val decode_string : ?tbl:decoding_table -> string -> string
- (** Generic base64 encoding over an output. *)
- val encode : ?tbl:encoding_table -> 'a IO.output -> 'a IO.output
- (** Generic base64 decoding over an input. *)
- val decode : ?tbl:decoding_table -> IO.input -> IO.input
- (** Create a valid decoding table from an encoding one. *)
- val make_decoding_table : encoding_table -> decoding_table
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