returns xml values as character
Usage
xml_node(xml, level1 = NULL, level2 = NULL, level3 = NULL, ...)
xml_node_name(xml, level1 = NULL, level2 = NULL, ...)
xml_value(xml, level1 = NULL, level2 = NULL, level3 = NULL, ...)
xml_attr(xml, level1 = NULL, level2 = NULL, level3 = NULL, ...)Arguments
- xml
something xml
- level1
to please check
- level2
to please check
- level3
to please check
- ...
additional arguments passed to
read_xml()
Details
This function returns XML nodes as used in openxlsx2. In theory they could be returned as pointers as well, but this has not yet been implemented. If no level is provided, the nodes on level1 are returned
Examples
x <- read_xml("<a><b/></a>")
# return a
xml_node(x, "a")
#> [1] "<a><b/></a>"
# return b. requires the path to the node
xml_node(x, "a", "b")
#> [1] "<b/>"
xml_node_name("<a/>")
#> [1] "a"
xml_node_name("<a><b/></a>", "a")
#> [1] "b"
x <- read_xml("<a>1</a>")
xml_value(x, "a")
#> [1] "1"
x <- read_xml("<a><b r=\"1\">2</b></a>")
xml_value(x, "a", "b")
#> [1] "2"
x <- read_xml("<a a=\"1\" b=\"2\">1</a>")
xml_attr(x, "a")
#> [[1]]
#> a b
#> "1" "2"
#>
x <- read_xml("<a><b r=\"1\">2</b></a>")
xml_attr(x, "a", "b")
#> [[1]]
#> r
#> "1"
#>
x <- read_xml("<a a=\"1\" b=\"2\">1</a>")
xml_attr(x, "a")
#> [[1]]
#> a b
#> "1" "2"
#>
x <- read_xml("<b><a a=\"1\" b=\"2\"/></b>")
xml_attr(x, "b", "a")
#> [[1]]
#> a b
#> "1" "2"
#>