Show the structure of an html/xml document without displaying any of
the values. This is useful if you want to get a high level view of the
way a document is organised. Compared to xml_structure,
html_structure prints the id and class attributes.
Arguments
- x
HTML/XML document (or part there of)
- indent
Number of spaces to ident
- file
A connection, or a character string naming the file to print to. If
""(the default),catprints to the standard output connection, the console unless redirected bysink. If it is"|cmd", the output is piped to the command given bycmd, by opening a pipe connection.
Examples
xml_structure(read_xml("<a><b><c/><c/></b><d/></a>"))
#> <a>
#> <b>
#> <c>
#> <c>
#> <d>
rproj <- read_html(system.file("extdata", "r-project.html", package = "xml2"))
xml_structure(rproj)
#> <html [lang]>
#> <head>
#> <meta [charset]>
#> <meta [http-equiv, content]>
#> <meta [name, content]>
#> <title>
#> {text}
#> <link [rel, type, href, sizes]>
#> <link [rel, type, href, sizes]>
#> {comment}
#> <link [href, rel]>
#> <link [href, rel]>
#> {comment}
#> {comment}
#> {comment}
#> <body>
#> {text}
#> <div [class]>
#> {text}
#> <div [class]>
#> {text}
#> <div [class, role]>
#> {text}
#> <div [class]>
#> {text}
#> <div [class]>
#> {text}
#> <p>
#> <a [href]>
#> <img [src, alt]>
#> {text}
#> <p>
#> <small>
#> <a [href]>
#> {text}
#> {text}
#> <h2>
#> {text}
#> {text}
#> <p>
#> <a [href]>
#> {text}
#> {text}
#> <h2>
#> {text}
#> {text}
#> <ul>
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> <div [class]>
#> {text}
#> <h2>
#> {text}
#> {text}
#> <ul>
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> <div [class]>
#> {text}
#> <h2>
#> {text}
#> {text}
#> <ul>
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> <div [class]>
#> {text}
#> <h2>
#> {text}
#> {text}
#> <ul>
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> <li>
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> {text}
#> {text}
#> <div [class]>
#> {text}
#> <h1>
#> {text}
#> {text}
#> <h2 [id]>
#> {text}
#> {text}
#> <p>
#> {text}
#> <strong>
#> <a [href]>
#> {text}
#> {text}
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> <p>
#> {text}
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> <h2 [id]>
#> {text}
#> {text}
#> <ul>
#> <li>
#> <p>
#> <a [href]>
#> <strong>
#> {text}
#> {text}
#> {text}
#> <li>
#> <p>
#> <strong>
#> {text}
#> {text}
#> {text}
#> <li>
#> <p>
#> <a [href]>
#> <strong>
#> {text}
#> {text}
#> {text}
#> <li>
#> <p>
#> <strong>
#> {text}
#> {text}
#> {text}
#> <li>
#> <p>
#> <strong>
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> <li>
#> <p>
#> <strong>
#> <a [href]>
#> {text}
#> {text}
#> {text}
#> {comment}
#> {text}
#> {text}
#> <div [class]>
#> {text}
#> {text}
#> {text}
#> {comment}
#> {text}
#> <script [src]>
#> {comment}
#> <script [src]>
xml_structure(xml_find_all(rproj, ".//p"))
#> [[1]]
#> <p>
#> <a [href]>
#> <img [src, alt]>
#>
#> [[2]]
#> <p>
#> <small>
#> <a [href]>
#> {text}
#>
#> [[3]]
#> <p>
#> <a [href]>
#> {text}
#>
#> [[4]]
#> <p>
#> {text}
#> <strong>
#> <a [href]>
#> {text}
#> {text}
#> <a [href]>
#> {text}
#> {text}
#>
#> [[5]]
#> <p>
#> {text}
#> <a [href]>
#> {text}
#> {text}
#>
#> [[6]]
#> <p>
#> <a [href]>
#> <strong>
#> {text}
#> {text}
#>
#> [[7]]
#> <p>
#> <strong>
#> {text}
#> {text}
#>
#> [[8]]
#> <p>
#> <a [href]>
#> <strong>
#> {text}
#> {text}
#>
#> [[9]]
#> <p>
#> <strong>
#> {text}
#> {text}
#>
#> [[10]]
#> <p>
#> <strong>
#> <a [href]>
#> {text}
#> {text}
#>
#> [[11]]
#> <p>
#> <strong>
#> <a [href]>
#> {text}
#> {text}
#>
h <- read_html("<body><p id = 'a'></p><p class = 'c d'></p></body>")
html_structure(h)
#> <html>
#> <body>
#> <p#a>
#> <p.c.d>