Nodes¶
- 
char *lilv_file_uri_parse(const char *uri, char **hostname)¶
- Convert a file URI string to a local path string. - For example, “file://foo/bar%20one/baz.ttl” returns “/foo/bar one/baz.ttl”. Return value must be freed by caller with - lilv_free().- Parameters:
- uri – The file URI to parse. 
- hostname – If non-NULL, set to the hostname in the URI, if any. 
 
- Returns:
- uriconverted to a path, or NULL on failure (URI is not local).
 
- 
LilvNode *lilv_new_bool(LilvWorld *world, bool val)¶
- Create a new boolean value. - Returned value must be freed by caller with - lilv_node_free().
- 
LilvNode *lilv_new_file_uri(LilvWorld *world, const char *host, const char *path)¶
- Create a new file URI value. - Relative paths are resolved against the current working directory. Note that this may yield unexpected results if - hostis another machine.- Parameters:
- world – The world. 
- host – Host name, or NULL. 
- path – Path on host. 
 
- Returns:
- A new node that must be freed by caller. 
 
- 
LilvNode *lilv_new_float(LilvWorld *world, float val)¶
- Create a new floating point value. - Returned value must be freed by caller with - lilv_node_free().
- 
LilvNode *lilv_new_int(LilvWorld *world, int val)¶
- Create a new integer value. - Returned value must be freed by caller with - lilv_node_free().
- 
LilvNode *lilv_new_string(LilvWorld *world, const char *str)¶
- Create a new string value (with no language). - Returned value must be freed by caller with - lilv_node_free().
- 
LilvNode *lilv_new_uri(LilvWorld *world, const char *uri)¶
- Create a new URI value. - Returned value must be freed by caller with - lilv_node_free().
- 
const char *lilv_node_as_blank(const LilvNode *value)¶
- Return this value as a blank node identifier, like “genid03”. - Valid to call only if - lilv_node_is_blank(value)returns true. Returned value is owned by- valueand must not be freed by caller.
- 
bool lilv_node_as_bool(const LilvNode *value)¶
- Return - valueas a bool.- Valid to call only if - lilv_node_is_bool(value)returns true.
- 
float lilv_node_as_float(const LilvNode *value)¶
- Return - valueas a float.- Valid to call only if - lilv_node_is_float(value)or- lilv_node_is_int(value)returns true.
- 
int lilv_node_as_int(const LilvNode *value)¶
- Return - valueas an integer.- Valid to call only if - lilv_node_is_int(value)returns true.
- 
const char *lilv_node_as_uri(const LilvNode *value)¶
- Return this value as a URI string, like “http://example.org/foo”. - Valid to call only if - lilv_node_is_uri(value)returns true. Returned value is owned by- valueand must not be freed by caller.
- 
bool lilv_node_equals(const LilvNode *value, const LilvNode *other)¶
- Return whether two values are equivalent. 
- 
char *lilv_node_get_path(const LilvNode *value, char **hostname)¶
- Return the path of a file URI node. - Returns NULL if - valueis not a file URI. Returned value must be freed by caller with- lilv_free().
- 
char *lilv_node_get_turtle_token(const LilvNode *value)¶
- Return this value as a Turtle/SPARQL token. - Returned value must be freed by caller with - lilv_free().- Example tokens: 
- QName: doap:name 
- String: “this is a string” 
- Float: 1.0 
- Integer: 1 
- Boolean: true 
 
- 
bool lilv_node_is_blank(const LilvNode *value)¶
- Return whether the value is a blank node (resource with no URI). 
- 
bool lilv_node_is_literal(const LilvNode *value)¶
- Return whether this value is a literal (that is, not a URI). - Returns true if - valueis a string or numeric value.
- 
bool lilv_node_is_string(const LilvNode *value)¶
- Return whether this value is a string literal. - Returns true if - valueis a string value (and not numeric).
- 
const char *lilv_uri_to_path(const char *uri)¶
- Convert a file URI string to a local path string. - For example, “file://foo/bar/baz.ttl” returns “/foo/bar/baz.ttl”. Return value is shared and must not be deleted by caller. This function does not handle escaping correctly and should not be used for general file URIs. Use - lilv_file_uri_parse()instead.- Returns:
- uriconverted to a path, or NULL on failure (URI is not local).