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if(FALSE) {
saveXML <-
function(doc, file=NULL, compression=0, indent=TRUE, prefix = '<?xml version="1.0"?>\n',
doctype = NULL, encoding = getEncoding(doc), ...)
{
UseMethod("saveXML")
}
}
saveXML.XMLInternalNode <-
function(doc, file = NULL, compression = 0, indent = TRUE, prefix = '<?xml version="1.0"?>\n',
doctype = NULL, encoding = getEncoding(doc), ...)
{
if(is.na(encoding) || length(encoding) == 0 || encoding == "")
encoding = character()
ans = .Call("RS_XML_printXMLNode", doc, as.integer(0), as.integer(indent), as.logical(indent),
as.character(encoding), getEncodingREnum(as.character(encoding)), PACKAGE = "XML")
if(length(file)) {
cat(ans, file = file)
file
} else
ans
}
saveXML.XMLInternalDocument <-
function(doc, file = NULL, compression = 0, indent = TRUE,
prefix = '<?xml version="1.0"?>\n', doctype = NULL, encoding = getEncoding(doc), ...)
{
havePrefix = !missing(prefix)
isDocType = is(doctype, "Doctype")
if(isDocType) {
# Check that the value in the DOCTYPE for the top-level name is the same as that of the
# root element
topname = xmlName(xmlRoot(doc))
if(doctype@name == "")
doctype@name = topname
else if(topname == doctype@name)
stop("The top-level node and the name for the DOCTYPE must agree", doctype@name, " ", topname)
prefix = c(doctype@name, doctype@public, doctype@system)
}
if(length(file))
file = path.expand(file)
if(is.na(encoding))
encoding = "" #character()
ans = .Call("R_saveXMLDOM", doc, file, as.integer(compression), as.logical(indent),
if(is.character(prefix)) prefix else character(),
as.character(encoding), # getEncodingREnum(as.character(encoding)),
PACKAGE = "XML")
if(!isDocType && havePrefix) {
prefix = as(prefix, "character") # allow for an XMLInternalNode.
if(length(file)) {
txt = c(prefix, readLines(file)[-1])
cat(txt, file = file)
} else {
tmp = strsplit(ans, "\\\n")[[1]]
tmp = c(prefix, tmp[-1])
ans = paste(tmp, collapse = "\n")
}
}
if(length(file))
file
else
ans
}
saveXML.XMLInternalDOM <-
function(doc, file=NULL, compression=0, indent=TRUE, prefix = '<?xml version="1.0"?>\n',
doctype = NULL, encoding = getEncoding(doc), ...)
{
saveXML(doc$value(), file, compression, indent, prefix, doctype, encoding)
}
saveXML.XMLOutputStream =
function(doc, file = NULL, compression = 0, indent = TRUE, prefix = '<?xml version="1.0"?>\n',
doctype = NULL, encoding = getEncoding(doc), ...)
{
saveXML(doc$value(), file, compression, indent, prefix, doctype, encoding)
}
saveXML.sink =
#
# Need to handle a DTD here as the prefix argument..
#
function(doc, file = NULL, compression = 0, indent = TRUE, prefix = '<?xml version="1.0"?>\n',
doctype = NULL, encoding = getEncoding(doc), ...)
{
asString = is.null(file)
if(asString)
file = textConnection(NULL, "w")
if(inherits(file, c("character", "connection"))) {
sink(file)
on.exit(sink())
}
if(asString)
on.exit(close(file), add = TRUE)
if(!is.null(prefix))
cat(as.character(prefix))
if(!is.null(doctype))
cat(as(doctype, "character"), '\n')
#XXX Should we return file if it is not missing() || NULL ???
print(doc)
if(asString)
paste(textConnectionValue(file), collapse = "\n")
else
file
}
saveXML.XMLNode = saveXML.sink
saveXML.XMLFlatTree = saveXML.sink
setGeneric("saveXML",
function(doc, file=NULL, compression=0, indent=TRUE, prefix = '<?xml version="1.0"?>\n',
doctype = NULL, encoding = getEncoding(doc), ...)
standardGeneric("saveXML"))
setMethod("saveXML", "XMLInternalNode", saveXML.XMLInternalNode)
setMethod("saveXML", "XMLInternalDocument", saveXML.XMLInternalDocument)
setMethod("saveXML", "XMLInternalDOM", saveXML.XMLInternalDOM)
setMethod("saveXML", "XMLOutputStream", saveXML.XMLOutputStream)
setMethod("saveXML", "XMLNode", saveXML.sink)
setOldClass("XMLFlatTree")
setOldClass(c("XMLFlatListTree", "XMLFlatTree"))
setMethod("saveXML", "XMLFlatTree", saveXML.sink)
setMethod("saveXML", "HTMLInternalDocument",
function(doc, file = NULL, compression = 0, indent = TRUE,
prefix = '<?xml version="1.0"?>\n', doctype = NULL, encoding = "", ...) {
if(ADD_XML_OUTPUT_BUFFER) {
if(length(file) && is.character(file))
out = file
else
out = tempfile()
} else
out = character()
ans = .Call("RS_XML_dumpHTMLDoc", doc, as.integer(indent), as.character(encoding),
as.logical(indent), as.character(out), PACKAGE = "XML")
if(length(file) && length(out) == 0) {
cat(ans, file = file)
file
} else if(length(out)) {
paste(readLines(out), collapse = "\n")
} else {
ans
}
})
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