diff options
Diffstat (limited to 'vendor/golang.org/x/net/html/render.go')
| -rw-r--r-- | vendor/golang.org/x/net/html/render.go | 28 |
1 files changed, 24 insertions, 4 deletions
diff --git a/vendor/golang.org/x/net/html/render.go b/vendor/golang.org/x/net/html/render.go index 8b280319..e8c12334 100644 --- a/vendor/golang.org/x/net/html/render.go +++ b/vendor/golang.org/x/net/html/render.go @@ -194,9 +194,8 @@ func render1(w writer, n *Node) error { } } - // Render any child nodes. - switch n.Data { - case "iframe", "noembed", "noframes", "noscript", "plaintext", "script", "style", "xmp": + // Render any child nodes + if childTextNodesAreLiteral(n) { for c := n.FirstChild; c != nil; c = c.NextSibling { if c.Type == TextNode { if _, err := w.WriteString(c.Data); err != nil { @@ -213,7 +212,7 @@ func render1(w writer, n *Node) error { // last element in the file, with no closing tag. return plaintextAbort } - default: + } else { for c := n.FirstChild; c != nil; c = c.NextSibling { if err := render1(w, c); err != nil { return err @@ -231,6 +230,27 @@ func render1(w writer, n *Node) error { return w.WriteByte('>') } +func childTextNodesAreLiteral(n *Node) bool { + // Per WHATWG HTML 13.3, if the parent of the current node is a style, + // script, xmp, iframe, noembed, noframes, or plaintext element, and the + // current node is a text node, append the value of the node's data + // literally. The specification is not explicit about it, but we only + // enforce this if we are in the HTML namespace (i.e. when the namespace is + // ""). + // NOTE: we also always include noscript elements, although the + // specification states that they should only be rendered as such if + // scripting is enabled for the node (which is not something we track). + if n.Namespace != "" { + return false + } + switch n.Data { + case "iframe", "noembed", "noframes", "noscript", "plaintext", "script", "style", "xmp": + return true + default: + return false + } +} + // writeQuoted writes s to w surrounded by quotes. Normally it will use double // quotes, but if s contains a double quote, it will use single quotes. // It is used for writing the identifiers in a doctype declaration. |