encoder.h File Reference

An encoder. More...

#include <stddef.h>

Include dependency graph for encoder.h:

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Typedefs
typedef enum tetengo_text_encoder_encoding_tag	tetengo_text_encoder_encoding_t

Enumerations
enum	tetengo_text_encoder_encoding_tag { tetengo_text_encoder_encoding_utf8 , tetengo_text_encoder_encoding_utf16 , tetengo_text_encoder_encoding_cp932 }

Functions
const tetengo_text_encoder_t *	tetengo_text_encoder_instance (tetengo_text_encoder_encoding_t encoding)
	Returns the encoder instance.
size_t	tetengo_text_encoder_encode (const tetengo_text_encoder_t *p_encoder, const char *string, char *encoded_string, size_t encoded_string_capacity)
	Encodes a string.
size_t	tetengo_text_encoder_decode (const tetengo_text_encoder_t *p_encoder, const char *encoded_string, char *string, size_t string_capacity)
	Decodes a string.

Detailed Description

An encoder.

Copyright (C) 2019-2024 kaoru https://www.tetengo.org/

Typedef Documentation

tetengo_text_encoder_encoding_t

typedef enum tetengo_text_encoder_encoding_tag tetengo_text_encoder_encoding_t

Encoding type

Enumeration Type Documentation

tetengo_text_encoder_encoding_tag

enum tetengo_text_encoder_encoding_tag

Encoding type

Enumerator
tetengo_text_encoder_encoding_utf8	UTF-8
tetengo_text_encoder_encoding_utf16	UTF-16
tetengo_text_encoder_encoding_cp932	CP932

Function Documentation

tetengo_text_encoder_decode()

size_t tetengo_text_encoder_decode	(	const tetengo_text_encoder_t *	p_encoder,
		const char *	encoded_string,
		char *	string,
		size_t	string_capacity )

Decodes a string.

When decoding from UTF-16, cast unsigned short[] to char* for encoded_string.

Parameters

p_encoder	A pointer to an encoder.
encoded_string	An encoded string.
string	The storage for a string. Can be NULL.
string_capacity	The capacity of string including a terminator '\0'.

Returns

The length of decoded string. Or 0 when p_encoder is NULL or string is NULL.

tetengo_text_encoder_encode()

size_t tetengo_text_encoder_encode	(	const tetengo_text_encoder_t *	p_encoder,
		const char *	string,
		char *	encoded_string,
		size_t	encoded_string_capacity )

Encodes a string.

When encoding to UTF-16, cast unsigned short[] to char* for encoded_string and the unit of encoded_string_capacity and the return value is an unsigned short character.

Parameters

p_encoder	A pointer to an encoder.
string	A string.
encoded_string	The storage for an encoded string. Can be NULL.
encoded_string_capacity	The capacity of encoded_string including a terminator '\0'.

Returns

The length of encoded string. Or 0 when p_encoder is NULL or string is NULL.

tetengo_text_encoder_instance()

const tetengo_text_encoder_t * tetengo_text_encoder_instance

(

tetengo_text_encoder_encoding_t

encoding

)

Returns the encoder instance.

Parameters

encoding

An encoding.

Returns

A pointer to the instance. Or NULL when encoding is invalid.