XML: xmlToS4 – R documentation

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xmlToS4

General mechanism for mapping an XML node to an S4 object

Description

This generic function and its methods recursively process an XML node and its child nodes ( and theirs and so on) to map the nodes to S4 objects.

This is the run-time function that corresponds to the makeClassTemplate function.

Usage

xmlToS4(node, obj = new(xmlName(node)), ...)

Arguments

`node`	the top-level XML node to convert to an S4 object
`obj`	the object whose slots are to be filled from the information in the XML node
`...`	additional parameters for methods

Value

The object obj whose slots have been modified.

Author(s)

Duncan Temple Lang

Examples

txt = paste0("<doc><part><name>ABC</name><type>XYZ</type>',
              <cost>3.54</cost><status>available</status></part></doc>")
 doc = xmlParse(txt)

 setClass("part", representation(name = "character",
                                 type = "character",
                                 cost = "numeric",
                                 status= "character"))
 xmlToS4(xmlRoot(doc)[["part"]])

XML

Tools for Parsing and Generating XML Within R and S-Plus

v3.99-0.10

BSD_3_clause + file LICENSE

Authors

CRAN Team [ctb, cre] (de facto maintainer since 2013), Duncan Temple Lang [aut] (<https://orcid.org/0000-0003-0159-1546>), Tomas Kalibera [ctb]

Initial release