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inst/examples/HTMLText.R
In XML: Tools for Parsing and Generating XML Within R and S-Plus
# The following illustrates how we can get the text
# Michael Conklin.
# Also see ./foo.html as an example with javascript content
# and a pseudo/fake css node.
doc = htmlParse("http://www.omegahat.net/")
txt = xpathSApply(doc, "//body//text()", xmlValue)
#The result is a character vector that contains all the text.
#By limiting the nodes to the body, we avoid the content in <head>
#such as inlined JavaScript or CSS.
#It is also possible that a document may have <script> elements
#in the document containing JavaScript that you don't want.
#You can omit these
txt = xpathSApply(doc, "//body//text()[not(ancestor::script)]", xmlValue)
# And if there were other elements we wanted to ignore, then you could use
txt = xpathSApply(doc,
"//body//text()[not(ancestor::script) and not(ancestor::otherElement)]",
xmlValue)
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XML documentation built on Nov. 3, 2023, 1:14 a.m.
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# The following illustrates how we can get the text
# Michael Conklin.
# Also see ./foo.html as an example with javascript content
# and a pseudo/fake css node.
doc = htmlParse("http://www.omegahat.net/")
txt = xpathSApply(doc, "//body//text()", xmlValue)
#The result is a character vector that contains all the text.
#By limiting the nodes to the body, we avoid the content in <head>
#such as inlined JavaScript or CSS.
#It is also possible that a document may have <script> elements
#in the document containing JavaScript that you don't want.
#You can omit these
txt = xpathSApply(doc, "//body//text()[not(ancestor::script)]", xmlValue)
# And if there were other elements we wanted to ignore, then you could use
txt = xpathSApply(doc,
"//body//text()[not(ancestor::script) and not(ancestor::otherElement)]",
xmlValue)
Try the XML package in your browser
Any scripts or data that you put into this service are public.
R Package Documentation
Browse R Packages
We want your feedback!
Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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