heuristics

heuristics

Functions

Description

Functions

librdf_heuristic_gen_name ()

char *
librdf_heuristic_gen_name (const char *name);

Generate a new name from an existing name.

Adds an integer or increases the integer at the end of the name in order to generate a new one

Parameters

name

the name

 

Returns

a new name or NULL on failure


librdf_heuristic_is_blank_node ()

int
librdf_heuristic_is_blank_node (const char *node);

Try to guess if an node string is a blank node identifier.

The guessing is done by assuming the object is a blank node if it matches ^_: like N-Triples, N3 and related.

Parameters

node

string object to guess type

 

Returns

non 0 if node is probably a blank node identifier


librdf_heuristic_get_blank_node ()

const char *
librdf_heuristic_get_blank_node (const char *node);

Get a blank node identifier from a node string.

Picks the blank node identifier out of a string. Looks for things like _:ABC

Parameters

node

string object to guess type

 

Returns

the blank node identifer string or NULL if the node does not seem to be a blank node identifier


librdf_heuristic_object_is_literal ()

int
librdf_heuristic_object_is_literal (const char *object);

Try to guess if an object string is a literal or a resource.

The guessing is done by assuming the object is a URL if it matches ^[isalnum()]+:[^isblank()]+$

This will be fooled by literals of form 'thing:non-blank-thing' but is good enough.

Parameters

object

string object to guess type

 

Returns

non 0 if object is probably a literal

Types and Values