Component bdlde_hexdecoder [Package bdlde]

Provide automata converting from hex encodings. More...

Namespaces
namespace	bdlde

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Detailed Description

Outline

• Purpose
• Classes
• Description

Purpose:

Provide automata converting from hex encodings.

Classes:

bdlde::HexDecoder

automata for hex decoding

See also:

Component bdlde_hexencoder

Description:

This component provides a class, bdlde::HexDecoder, for decoding hexadecimal representation into plain text.

bdlde::HexEncoder and bdlde::HexDecoder provide a pair of template functions (each parameterized separately on both input and output iterators) that can be used respectively to encode and to decode byte sequences of arbitrary length into and from the printable Hex representation.

Each instance of either the encoder or decoder retains the state of the conversion from one supplied input to the next, enabling the processing of segmented input -- i.e., processing resumes where it left off with the next invocation on new input. Instance methods are provided for both the encoder and decoder to (1) assert the end of input, (2) determine whether the input so far is currently acceptable, and (3) indicate whether a non-recoverable error has occurred.