url_to_id function

Extract an identifier from a wikidata URL

Convert a URL ending in an identifier (returned by SPARQL queries) to just the plain identifier (QID or PID).

Convert a URL ending in an identifier (returned by SPARQL queries) to just the plan identifier (QID or PID).

url_to_id(x)

url_to_id(x)

Arguments

• x: a vector of strings representing wikidata URLs

Returns

if the URL ends in a QID or PID, return that PID or QID, else return the original string

QID or PID

Examples

url_to_id("http://www.wikidata.org/entity/42")
url_to_id("http://www.wikidata.org/Q42")