|  |  |  | Raptor RDF Syntax Parsing and Serializing Library Manual |  | 
|---|---|---|---|---|
typedef raptor_stringbuffer; raptor_stringbuffer* raptor_new_stringbuffer (void); void raptor_free_stringbuffer (raptor_stringbuffer *stringbuffer); int raptor_stringbuffer_append_counted_string (raptor_stringbuffer *stringbuffer, unsigned char *string, size_t length, int do_copy); int raptor_stringbuffer_append_string (raptor_stringbuffer *stringbuffer, unsigned char *string, int do_copy); int raptor_stringbuffer_append_decimal (raptor_stringbuffer *stringbuffer, int integer); int raptor_stringbuffer_append_stringbuffer (raptor_stringbuffer *stringbuffer, raptor_stringbuffer *append); int raptor_stringbuffer_prepend_counted_string (raptor_stringbuffer *stringbuffer, unsigned char *string, size_t length, int do_copy); int raptor_stringbuffer_prepend_string (raptor_stringbuffer *stringbuffer, unsigned char *string, int do_copy); unsigned char* raptor_stringbuffer_as_string (raptor_stringbuffer *stringbuffer); size_t raptor_stringbuffer_length (raptor_stringbuffer *stringbuffer); int raptor_stringbuffer_copy_to_string (raptor_stringbuffer *stringbuffer, unsigned char *string, size_t length);
A utility class that allows easy construction of strings that grow at the end by appending new strings. Primarily used for constructing/serializing syntaxes into strings by the raptor_iostream and raptor_serializer classes.
raptor_stringbuffer* raptor_new_stringbuffer (void);
Create a new stringbuffer.
| Returns : | non 0 on failure | 
void raptor_free_stringbuffer (raptor_stringbuffer *stringbuffer);
Destroy a stringbuffer.
| stringbuffer: | stringbuffer object to destroy. | 
int         raptor_stringbuffer_append_counted_string
                                            (raptor_stringbuffer *stringbuffer,
                                             unsigned char *string,
                                             size_t length,
                                             int do_copy);
If string is NULL or length is 0, no work is performed.
If do_copy is non-0, the passed-in string is copied into new memory
otherwise the stringbuffer becomes the owner of the string pointer
and will free it when the stringbuffer is destroyed.
Add a string to the stringbuffer.
| stringbuffer: | raptor stringbuffer | 
| string: | string | 
| length: | length of string | 
| do_copy: | non-0 to copy the string | 
| Returns : | non-0 on failure | 
int         raptor_stringbuffer_append_string
                                            (raptor_stringbuffer *stringbuffer,
                                             unsigned char *string,
                                             int do_copy);
Add a string to the stringbuffer.
If string is NULL, no work is performed.
If do_copy is non-0, the passed-in string is copied into new memory
otherwise the stringbuffer becomes the owner of the string pointer
and will free it when the stringbuffer is destroyed.
| stringbuffer: | raptor stringbuffer | 
| string: | string | 
| do_copy: | non-0 to copy the string | 
| Returns : | non-0 on failure | 
int         raptor_stringbuffer_append_decimal
                                            (raptor_stringbuffer *stringbuffer,
                                             int integer);
Add an integer in decimal to the stringbuffer.
| stringbuffer: | raptor stringbuffer | 
| integer: | integer to format as decimal and add | 
| Returns : | non-0 on failure | 
int         raptor_stringbuffer_append_stringbuffer
                                            (raptor_stringbuffer *stringbuffer,
                                             raptor_stringbuffer *append);
Add a stringbuffer to the stringbuffer.
This function removes the content from the appending stringbuffer, making it empty and appends it to the supplied stringbuffer.
| stringbuffer: | raptor_stringbuffer | 
| append: | raptor_stringbuffer to append | 
| Returns : | non-0 on failure | 
int         raptor_stringbuffer_prepend_counted_string
                                            (raptor_stringbuffer *stringbuffer,
                                             unsigned char *string,
                                             size_t length,
                                             int do_copy);
If do_copy is non-0, the passed-in string is copied into new memory otherwise the stringbuffer becomes the owner of the string pointer and will free it when the stringbuffer is destroyed.
Add a string to the start of the stringbuffer.
| stringbuffer: | raptor stringbuffer | 
| string: | string | 
| length: | length of string | 
| do_copy: | non-0 to copy the string | 
| Returns : | non-0 on failure | 
int         raptor_stringbuffer_prepend_string
                                            (raptor_stringbuffer *stringbuffer,
                                             unsigned char *string,
                                             int do_copy);
Add a string to the start of the stringbuffer.
If do_copy is non-0, the passed-in string is copied into new memory otherwise the stringbuffer becomes the owner of the string pointer and will free it when the stringbuffer is destroyed.
| stringbuffer: | raptor stringbuffer | 
| string: | string | 
| do_copy: | non-0 to copy the string | 
| Returns : | non-0 on failure | 
unsigned char* raptor_stringbuffer_as_string
                                            (raptor_stringbuffer *stringbuffer);
Return the stringbuffer as a C string.
Note: the return value is a to a shared string that the stringbuffer allocates and manages.
| stringbuffer: | raptor stringbuffer | 
| Returns : | NULL on failure or stringbuffer is empty, otherwise a pointer to a shared copy of the string. | 
size_t raptor_stringbuffer_length (raptor_stringbuffer *stringbuffer);
Return the stringbuffer length.
| stringbuffer: | raptor stringbuffer | 
| Returns : | size of stringbuffer | 
int         raptor_stringbuffer_copy_to_string
                                            (raptor_stringbuffer *stringbuffer,
                                             unsigned char *string,
                                             size_t length);
Copy the stringbuffer into a string.
Copies the underlying string to a pre-allocated buffer. The output string is always '\0' terminated.
| stringbuffer: | raptor stringbuffer | 
| string: | output string | 
| length: | size of output string | 
| Returns : | non-0 on failure such as stringbuffer is empty, buffer is too small |