xml2 (version 1.1.0)

as_list: Coerce xml nodes to a list.

Description

This turns an XML document (or node or nodeset) into the equivalent R list. Note that this is as_list(), not as.list(): lapply() automatically calls as.list() on its inputs, so we can't override the default.

Usage

as_list(x, ns = character(), ...)

Arguments

x
A document, node, or node set.
ns
Optionally, a named vector giving prefix-url pairs, as produced by xml_ns. If provided, all names will be explicitly qualified with the ns prefix, i.e. if the element bar is defined in namespace foo, it will be called foo:bar. (And similarly for atttributes). Default namespaces must be given an explicit name. The ns is ignored when using xml_name<- and xml_set_name.
...
Needed for compatibility with generic. Unused.

Details

as_list currently only handles the four most common types of children that an element might have:

  • Other elements, converted to lists.
  • Attributes, stored as R attributes. Attributes that have special meanings in R (class, comment, dim, dimnames, names, row.names and tsp) are escaped with '.'
  • Text, stored as a character vector.

Examples

Run this code
as_list(read_xml("<foo> a <b /><c><![CDATA[<d></d>]]></c></foo>"))
as_list(read_xml("<foo> <bar><baz /></bar> </foo>"))
as_list(read_xml("<foo id = 'a'></foo>"))
as_list(read_xml("<foo><bar id='a'/><bar id='b'/></foo>"))

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