loadDocument: Load one or more documents into a Collection via the Zorba...
In omegahat/RXQuery: Bi-directional interface to an XQuery engine

Description Usage Arguments Value Author(s) References See Also

This function loads one or more documents into the XML manager as Zorba Item objects. These can then be assembled into a collection, for example, and used in a query.

1	loadDocument(doc, asText = rep(NA, length(doc)), isURI = rep(NA, length(doc)), xmlManager = xmlDataManager())

`xmlManager`	the XML manager instantace associated with the Zorba instance in which we want to use the documents.
`doc`	a character vector or list giving the documents.
`asText`	a logical vector that indicates whether each element in `doc` is the name of a file or document, or the contents of the document itself. We will probably enhance this to look for AsIs objects and treat them as content and regular strings as file/URL names
`isURI`	a logical vector indicating whether each element is a URI or a regular file name. This is combined with `asText`.

A zorba::ItemList in which each object is an Item object, a reference to an C++-level object.

Duncan Temple Lang

XQuery http://www.w3.org/TR/xquery/

Zorba http://www.zorba-xquery.com/

mgr = xmlDataManager() # only the first 9 senate bills. billsDir = system.file("sampleDocs", "bills", package = "RXQuery") filenames = list.files(billsDir, pattern = "s[1-9].*.xml", full.names = TRUE) items = loadDocument(mgr, filenames) col = createCollection(mgr, "http://www.govtrack.org/bills") q = 'for $ti in collection("http://www.govtrack.org/bills")/*/introduced/@datetime return $ti;'

e = xquery(q)

omegahat/RXQuery documentation built on May 24, 2019, 1:55 p.m.