Hi, I have an existing XML document on disk, which I'd like to use as a template, and exchange a subnode with my own newly created subtree:
<?xml version="1.0"?>
<Duncan>
<name a="1" b="xyz">
<first>Duncan</first>
<last>Temple Lang</last>
</name>
</Duncan>
created by e.g.
library(XML)
tr <- xmlTree("Duncan")
tr$addTag("name", attrs=c(a=1,b="xyz"), close=F)
tr$addTag("first", "Duncan")
tr$addTag("last", "Temple Lang")
tr$closeTag()
cat(saveXML(tr))
And now imagine I want to change <first>Duncan</first>
into e.g. <initials>D.</initials>. How to do that ?
I am able to add my node:
library(XML)
x <- xmlTreeParse("duncan.xml", useInternalNodes = TRUE)
# find parent, add as last child:
name <- getNodeSet(x, "//name")[[1]]
newXMLNode("initials", "D.", parent=name)
first <- getNodeSet(x, "//first")[[1]]
# wanted:
# deleteXMLNode(name)
# or
# replaceXMLNode("initials", "D.", replace=first)
cat(saveXML(x))
free(x)
As seen above: how do I get rid of (no offense meant ;-) <first>Duncan</first> ?
Alternatively, how do I overwrite <first>...</first> with my own stuff ?
I checked the provided examples, and grep'ed the manpages, to no avail.
Thanks in advance,
yours,
Steffen
signature.asc
Description: This is a digitally signed message part
______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
