| Top |
An class providing an I/O writer abstraction that allows generating
output that can be stored or passed on to system files, strings
allocated in memory (usually via raptor_stringbuffer), system
file handles (FILE*) or to a user function.
int
(*raptor_iostream_init_func) (void *context);
Handler function for raptor_iostream initialising.
void
(*raptor_iostream_finish_func) (void *context);
Handler function for raptor_iostream terminating.
int (*raptor_iostream_write_byte_func) (void *context,const int byte);
Handler function for implementing raptor_iostream_write_byte().
int (*raptor_iostream_write_bytes_func) (void *context,const void *ptr,size_t size,size_t nmemb);
Handler function for implementing raptor_iostream_write_bytes().
int
(*raptor_iostream_write_end_func) (void *context);
Handler function for implementing raptor_iostream_write_end().
int (*raptor_iostream_read_bytes_func) (void *context,void *ptr,size_t size,size_t nmemb);
Handler function for implementing raptor_iostream_read_bytes().
int
(*raptor_iostream_read_eof_func) (void *context);
Handler function for implementing raptor_iostream_read_eof().
raptor_iostream * raptor_new_iostream_from_handler (raptor_world *world,void *user_data,const raptor_iostream_handler * const handler);
raptor_iostream *
raptor_new_iostream_from_sink (raptor_world *world);
raptor_iostream * raptor_new_iostream_from_filename (raptor_world *world,const char *filename);
raptor_iostream * raptor_new_iostream_from_file_handle (raptor_world *world,FILE *handle);
raptor_iostream * raptor_new_iostream_from_string (raptor_world *world,void *string,size_t length);
raptor_iostream * raptor_new_iostream_to_filename (raptor_world *world,const char *filename);
raptor_iostream * raptor_new_iostream_to_file_handle (raptor_world *world,FILE *handle);
raptor_iostream * raptor_new_iostream_to_string (raptor_world *world,void **string_p,size_t *length_p,raptor_data_malloc_handler const malloc_handler);
int raptor_iostream_hexadecimal_write (unsigned int integer,int width,raptor_iostream *iostr);
int raptor_iostream_read_bytes (void *ptr,size_t size,size_t nmemb,raptor_iostream *iostr);
int raptor_iostream_counted_string_write (const void *string,size_t len,raptor_iostream *iostr);
int raptor_iostream_decimal_write (int integer,raptor_iostream *iostr);
int raptor_iostream_string_write (const void *string,raptor_iostream *iostr);
int raptor_iostream_write_byte (const int byte,raptor_iostream *iostr);
int raptor_iostream_write_bytes (const void *ptr,size_t size,size_t nmemb,raptor_iostream *iostr);
int raptor_bnodeid_ntriples_write (const unsigned char *bnodeid,size_t len,raptor_iostream *iostr);
int raptor_string_escaped_write (const unsigned char *string,size_t len,const char delim,unsigned int flags,raptor_iostream *iostr);
int raptor_term_escaped_write (const raptor_term *term,unsigned int flags,raptor_iostream *iostr);
int raptor_uri_escaped_write (raptor_uri *uri,raptor_uri *base_uri,unsigned int flags,raptor_iostream *iostr);
int raptor_string_ntriples_write (const unsigned char *string,size_t len,const char delim,raptor_iostream *iostr);
int raptor_string_python_write (const unsigned char *string,size_t len,const char delim,unsigned int mode,raptor_iostream *iostr);
raptor_string_python_write is deprecated and should not be used in newly-written code.
typedef struct {
int version;
/* V1 functions */
raptor_iostream_init_func init;
raptor_iostream_finish_func finish;
raptor_iostream_write_byte_func write_byte;
raptor_iostream_write_bytes_func write_bytes;
raptor_iostream_write_end_func write_end;
/* V2 functions */
raptor_iostream_read_bytes_func read_bytes;
raptor_iostream_read_eof_func read_eof;
} raptor_iostream_handler;
I/O stream implementation handler structure.
interface version. Presently 1 or 2. |
||
initialisation handler - optional, called at most once (V1) |
||
raptor_iostream_finish_func |
finishing handler - optional, called at most once (V1) |
|
raptor_iostream_write_byte_func |
write byte handler - required (for writing) (V1) |
|
raptor_iostream_write_bytes_func |
write bytes handler - required (for writing) (V1) |
|
raptor_iostream_write_end_func |
write end handler - optional (for writing), called at most once (V1) |
|
raptor_iostream_read_bytes_func |
read bytes handler - required (for reading) (V2) |
|
raptor_iostream_read_eof_func |
read EOF handler - required (for reading) (V2) |
Bit flags for raptor_string_escaped_write() and friends.
|
Allow \b \f, |
||
|
ALlow \t \n \r \u |
||
|
Allow UTF-8 for printable U * |
||
|
Must escape x00-x20<>\"{}|^` in URIs |
||
|
N-Triples literal |
||
|
N-Triples URI |
||
|
SPARQL literal: allows raw UTF8 for printable literals |
||
|
SPARQL long literal: no BS-escapes allowed |
||
|
SPARQL uri: have to escape certain characters |
||
|
Turtle 2013 URIs (like SPARQL) |
||
|
Turtle 2013 literals (like SPARQL) |
||
|
Turtle 2013 long literals (like SPARQL) |
||
|
JSON literals: \b \f \t \r \n and \u \U |