getRelativeURL | R Documentation |
This function is a convenience function for computing the fullly qualified URI of a document relative to a base URL. It handles the case where the document is already fully qualified and so ignores the base URL or, alternatively, is a relative document name and so prepends the base URL. It does not (yet) try to be clever by collapsing relative directories such as "..".
getRelativeURL(u, baseURL, sep = "/", addBase = TRUE,
simplify = TRUE, escapeQuery = FALSE)
u |
the location of the target document whose fully qualified URI is to be determined. |
baseURL |
the base URL relative to which the value of |
sep |
the separator to use to separate elements of the path. For external URLs (e.g.
accessed via HTTP, HTTPS, FTP), / should be used. For local files on Windows machines
one might use |
addBase |
a logical controlling whether we prepend the base URL to the result. |
simplify |
a logical value that controls whether we attempt to
simplify/normalize the path to remove |
escapeQuery |
a logical value. Currently ignored. |
This uses the function parseURI
to compute the components
of the different URIs.
A character string giving the fully qualified URI for
u
.
Duncan Temple Lang
parseURI
which uses the libxml2 facilities for parsing URIs.
xmlParse
, xmlTreeParse
, xmlInternalTreeParse
.
XInclude and XML Schema import/include elements for computing relative locations of included/imported files..
getRelativeURL("https://www.omegahat.net", "http://www.r-project.org")
getRelativeURL("bar.html", "http://www.r-project.org/")
getRelativeURL("../bar.html", "http://www.r-project.org/")
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