package extlib

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in-package search v0.2.0

extlib
- Base64
- BitSet
- Dllist
- DynArray
- Enum
- ExtArray
  - Array
    
    Floatarray
- ExtBuffer
  - Buffer
- ExtBytes
- ExtHashtbl
  - Hashtbl
- ExtLib
- ExtList
  - List
- ExtString
  - String
- Global
- IO
- OptParse
  - Formatter
  - Opt
  - OptParser
  - StdOpt
- Option
- PMap
- RefList
  - Index
- Std

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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).

exception Invalid_char

This exception is raised when reading an invalid character from a base64 input.

exception Invalid_table

This exception is raised if the encoding or decoding table size is not correct.

type encoding_table = char array

An encoding table maps integers 0..63 to the corresponding char.

type decoding_table = int array

A decoding table maps chars 0..255 to the corresponding 0..63 value or -1 if the char is not accepted.

val str_encode : ?tbl:encoding_table -> string -> ExtBytes.Bytes.t

erroneous interface, kept for compatibility use encode_string instead

val str_decode : ?tbl:decoding_table -> ExtBytes.Bytes.t -> string

erroneous interface, kept for compatibility use decode_string instead

val encode_string : ?tbl:encoding_table -> string -> string

Encode a string into Base64.

val decode_string : ?tbl:decoding_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 encode : ?tbl:encoding_table -> 'a IO.output -> 'a IO.output

Generic base64 encoding over an output.

val decode : ?tbl:decoding_table -> IO.input -> IO.input

Generic base64 decoding over an input.

val make_decoding_table : encoding_table -> decoding_table

Create a valid decoding table from an encoding one.