inst/examples/HTMLText.R
In cosmicexplorer/xmlr: 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.org/")
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)
cosmicexplorer/xmlr documentation built on May 30, 2019, 8:28 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.org/")
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)
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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