section-locator: Raptor RDF Syntax Library Manual

## section-locator section-locator |

## Functions

int | raptor_locator_print ()
int | raptor_locator_format ()
int | raptor_locator_line ()
int | raptor_locator_column ()
int | raptor_locator_byte ()
const char * | raptor_locator_file ()
const char * | raptor_locator_uri ()

## Types and Values

| raptor_locator

## Description

## Functions

### raptor_locator_print ()

    int
    raptor_locator_print (raptor_locator *locator,
                          FILE *stream);

Print a raptor locator to a stream.

#### Parameters

locator | raptor_locator to print |
stream | stream to print to |

#### Returns

non-0 on failure

### raptor_locator_format ()

    int
    raptor_locator_format (char *buffer,
                           size_t length,
                           raptor_locator *locator);

Format a raptor locator as a string.

If buffer is NULL or `length` is insufficient for the size of the locator, returns the number of additional bytes required in the buffer to write the locator. Writes a terminating '\0'.

#### Parameters

buffer | buffer to store format |
length | size of buffer (excluding NUL) |
locator | raptor_locator to format |

#### Returns

0 on success, >0 if additional bytes required in buffer, <0 on failure

### raptor_locator_line ()

    int
    raptor_locator_line (raptor_locator *locator);

Get line number from locator.

#### Parameters

locator | locator |

#### Returns

integer line number, or -1 if there is no line number available

### raptor_locator_column ()

    int
    raptor_locator_column (raptor_locator *locator);

Get column number from locator.

#### Parameters

locator | locator |

#### Returns

integer column number, or -1 if there is no column number available

### raptor_locator_byte ()

    int
    raptor_locator_byte (raptor_locator *locator);

Get the locator byte offset from locator.

#### Parameters

locator | locator |

#### Returns

integer byte number, or -1 if there is no byte offset available

### raptor_locator_file ()

    const char *
    raptor_locator_file (raptor_locator *locator);

Get file name from locator.

#### Parameters

locator | locator |

#### Returns

string file name, or NULL if there is no filename available

### raptor_locator_uri ()

    const char *
    raptor_locator_uri (raptor_locator *locator);

Get URI from locator.

Returns a pointer to a shared string version of the URI in the locator. This must be copied if it is needed.

#### Parameters

locator | locator |

#### Returns

string URI, or NULL if there is no URI available

## Types and Values

### raptor_locator

    typedef struct {
      raptor_uri *uri;
      const char *file;
      int line;
      int column;
      int byte;

    } raptor_locator;

Location information for an error, warning or information message.

#### Members

raptor_uri *`uri`; | URI of location (or NULL) |
const char *`file`; | Filename of location (or NULL) |
int `line`; | Line number of location (or <0 for no line) |
int `column`; | Column number of location (or <0 for no column) |
int `byte`; | Byte number of location (or <0 for no byte) |