The Accept-Language header allows the client to indicate to the server in which language it would prefer to receive reason phrases, session descriptions or status responses carried as message bodies. Its syntax is defined in [H14.4, S20.3] as follows:
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The Accept-Language header allows the client to indicate to the server in which language it would prefer to receive reason phrases, session descriptions or status responses carried as message bodies. Its syntax is defined in [H14.4, S20.3] as follows:
Accept-Language = "Accept-Language" ":"
1#( language-range [ ";" "q" "=" qvalue ] )
language-range = ( ( 1*8ALPHA *( "-" 1*8ALPHA ) ) | "*" )
◆ MSG_ACCEPT_LANGUAGE_INIT
#define MSG_ACCEPT_LANGUAGE_INIT |
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◆ msg_accept_language_t
The structure msg_accept_language_t contains representation of Accept-Language header.
The msg_accept_language_t is defined as follows:
typedef struct {
char const *aa_value;
msg_param_t const *aa_params;
char const *aa_q;
◆ anonymous enum
Enumerator |
---|
msg_accept_language_hash | Hash of Accept-Language header.
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◆ msg_accept_language_copy()
Copy an msg_accept_language_t header structure.
The function msg_accept_language_copy() copies a header structure header. If the header structure header contains a reference (header->h_next
) to a list of headers, all the headers in that list are copied, too. The function uses given memory home to allocate all the memory areas used to copy the header structure header.
- Parameters
-
home | memory home used to allocate new structure |
header | pointer to the header structure to be duplicated |
When copying, only the header structure and parameter lists attached to it are duplicated. The new header structure retains all the references to the strings within the old header, including the encoding of the old header, if present.
- Example
- Returns
- The function msg_accept_language_copy() returns a pointer to newly copied header structure, or NULL upon an error.
◆ msg_accept_language_dup()
Duplicate (deep copy) msg_accept_language_t.
The function msg_accept_language_dup() duplicates a header structure header. If the header structure header contains a reference (header->x_next
) to a list of headers, all the headers in the list are duplicated, too.
- Parameters
-
home | memory home used to allocate new structure |
header | header structure to be duplicated |
When duplicating, all parameter lists and non-constant strings attached to the header are copied, too. The function uses given memory home to allocate all the memory areas used to copy the header.
- Example
- Returns
- The function msg_accept_language_dup() returns a pointer to the newly duplicated msg_accept_language_t header structure, or NULL upon an error.
◆ msg_accept_language_format()
Make a Accept-Language header from formatting result.
The function msg_accept_language_format() makes a new Accept-Language header object using snprintf-formatted result as its value. The function first prints the arguments according to the format fmt specified. Then it allocates a new header structure, and uses the formatting result as the header value.
- Parameters
-
home | memory home used to allocate new header structure. |
fmt | string used as a printf()-style format |
... | argument list for format |
- Note
- This function may be implemented as a macro calling msg_header_format().
- Returns
- The function msg_accept_language_format() returns a pointer to newly makes header structure, or NULL upon an error.
◆ msg_accept_language_init()
◆ msg_accept_language_make()
◆ msg_is_accept_language()
Test if header object is an instance of msg_accept_language_t.
The function msg_is_accept_language() returns true (nonzero) if the header class is an instance of Accept-Language header object and false (zero) otherwise.
- Parameters
-
header | pointer to the header structure to be tested |
- Returns
- The function msg_is_accept_language() returns true (nonzero) if the header object is an instance of header Accept-Language header and false (zero) otherwise.
◆ msg_accept_language_class
Header class for Accept-Language header.
The header class msg_accept_language_class defines how a Accept-Language header header is parsed and printed. It also contains methods used by message parser and other functions to manipulate the msg_accept_language_t header structure.
msg_accept_language_t * msg_accept_language_copy(su_home_t *home, msg_accept_language_t const *header)
Copy an msg_accept_language_t header structure.
Definition: msg_mime_protos.h:2731
#define MSG_ACCEPT_LANGUAGE_INIT()
Initializer for an msg_accept_language_t structure.
Definition: msg_mime_protos.h:2602
msg_accept_language_t * msg_accept_language_init(msg_accept_language_t x[1])
Initialize an msg_accept_language_t structure.
Definition: msg_mime_protos.h:2619
msg_accept_language_t * msg_accept_language_dup(su_home_t *home, msg_accept_language_t const *header)
Duplicate (deep copy) msg_accept_language_t.
Definition: msg_mime_protos.h:2686